Loading...
HomeMy WebLinkAboutWPO202000004 VSMP - SWPPP 2020-09-10�h�os.arrJ COUNTY OF ALBEMARLE Department of Community Development tt 401 McIntire Road, North Wing Charlottesville, Virginia 22902-45% t Tel. (434) 296-5832 • Fax (434) 972-4126 Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: Project Name: Brookhill- Block 9-11 Name: Name: Address: Prepared by: Prepared for: SWPPP Preparation Date: (This document is to be made publicly available according to 9VAC25-880-70, Part II, section D) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County CONTENTS: (from Albemarle County Code Sec. 17-405) 1. Registration statement 2. Notice of general permit coverage 3. Nature of activity 4. Erosion and Sediment Control Plan. 5. Stormwater Management Plan 6. Pollution Prevention Plan. 7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload allocation, and exceptional waters. 8. Qualified personnel 9. Signed Certification 10. Delegation of authority. 11. General permit copy 12. Inspection logs Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 1. Registration statement (Provide a signed completed copy of the DEQ registration statement) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY FOR OFFICE USE ONLY GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM ID Number: CONSTRUCTION ACTIVITIES (VAR10) Technical Criteria: 116 ❑ IIc ❑ REGISTRATION STATEMENT 2019 NEW ISSUANCE 91 RE -ISSUANCE ❑ MODIFICATION WITH ACREAGE INCREASE ❑ MODIFICATION WITHOUT ACREAGE INCREASE ❑ Existing Permit Coverage Number (if applicable, VAR10####): Section I. Operator/Permittee Information. A. Construction Activity Operator (Permittee). The person or entity that is applying for permit coverage and will have operational control over construction activities to ensure compliance with the general permit. A person with signatory authority for this operator must sign the certification in Section A. (per Part III. K. of the VAR10 Permit). Construction Activity Operator Name: Stanley Martin Companies, LLC Contact person: Jeremy Swink Address: 404 People Place Suite, 303 City, State, Zip Code: Charlottesville, Virgina 22911 Phone Number: 571-309-5043 Primary Email: swinkjw@stanleymartin.com CC Email: OdonnellGP@stanleymartin.com; chollandsworth@wetlands.com B. Billing Information (leave blank if same as the Operator identified in Section I. A. above). This entity will receive Annual Permit Maintenance and Permit Modification Fee invoices (if applicable). Name: Contact Person: Address: City, State Zip Code: Phone Number: Primary Email: CC Email: C. May we transmit correspondence electronically? You must choose YES and include a valid email in orderto pay by credit card and to receive your permit coverage approval lettervia email: YES ® NO ❑ Rev04/2019 PAGE 1 1 7 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 Section II. Construction Activity Location Information. Project site information. A. Include a site map showing the location of the existing or proposed land -disturbing activities, the limits of land disturbance, construction entrances and all water bodies receiving stormwater discharges from the site. B. Construction Activity Name: Brookhill - Block 9,10,11 Address: Stella Lane City and/or County and Zip Code: Albemarle County Latitude and Longitude (6-digit, decimal degrees format): 38.109896,-78.45876 C. Construction Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): Stella Lane Section III. Offsite Support Activity Location Information. List all offsite support activities to be included under this permit registration. Enter additional areas on a separate page. Offsite areas not included on this registration may need to obtain coverage under a separate VPDES permit. A. Offsite Activity Name: N/A Address: City and/or County and Zip Code: Latitude and Longitude (6-digit, decimal degrees format): B. Offsite Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): N/A Section IV. Site Information. A. Acreage totals for all land -disturbing activities to be included under this permit coverage. Report to the nearest one -hundredth of an acre. Total land area of development (including the entire area to be disturbed as approved in the Stormwater 34.56 Management Plan): Primary estimated area to be disturbed (portions with 18.85 Erosion and Sediment Control Plan approval only): Offsite estimated area to be disturbed (if applicable): n/a C. Property Owner Status: D. Nature of the Construction Activity Description (i.e. commercial, industrial, residential, agricultural, environmental): E. Municipal Separate Storm Sewer System (MS4) name (if discharging to a MS4): B. Estimated Project Dates (MM/DD/YYYY) Start date: 09/10/2020 Completion date: 06/30/2021 FEDERAL ❑ STATE ❑ PUBLIC ❑ PRIVATE Residential N/A Rev 04/2019 PAGE 2 1 7 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 F. Is this construction activity part of a common plan of development or sale? YES [3d NO EJ G. 61" Order Hydrologic Unit Code (HUC) and Receiving Water Name(s). Attach a separate list if needed. HUC I RECEIVING WATERBODY(S) 020802040203 (JR08) I South Fork Rivanna River Section V. Other Information. A. A stormwater pollution prevention plan (SWPPP) must be prepared in accordance with the requirements of the General VPDES Permit for Discharges of Stormwater from Construction Activities prior to submitting the Registration Statement. By signing the Registration Statement, the operator is certifying that the SWPPP has been prepared. B. Has an Erosion and Sediment Control Plan been submitted to the VESCP Authority for review? YES 0 NO ❑ Erosion and Sediment Control Plan Approval Date (for estimated area to be disturbed).: 08/17/2020 C. Has land disturbance has commenced? YES ❑ NO'Y— D. If this project is using approved Annual Standards and Specifications (AS&S), attach the completed AS&S Entity Form. AS&S Entity Name (if different from the Operator identified in Section II. A.): N/A SEE THE FOLLOWING PAGE FOR SIGNATURE AND CERTIFICATION REQUIREMENTS AND INFORMATION Rev 04/2019 PAGE 3 ) 7 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 Section VI. Certification. A person representing the operator as identified in Section 1. A. and meeting the requirements of 9VAC25-880-70. Part III. K must physically sign this certification. A typed signature is not acceptable. Please note that operator is defined in 9VAC25-870-10 as follows: "Operator" means the owner or operator of any facility or activity subject to the Act and this chapter. In the context of storm water associated with a large or small construction activity, operator means any person associated with a construction project that meets either of the following two criteria: (i) the person has direct operational control over construction plans and specifications, including the ability to make modifications to those plans and specifications or (Y) the person has day-to-day operational control of those activities at a project that are necessary to ensure compliance with a stormwater pollution prevention plan for the site or other state permit or VSMP authority permit conditions (i.e., they are authorized to direct workers at a site to carry out activities required by the stormwater pollution prevention plan or comply with other permit conditions). In the context of storm water discharges from Municipal Separate Storm Sewer Systems (M54s), operator means the operator of the regulated MS4 system. 9VAC25-880-70. Part III. K. Signatory Requirements. Registration Statement. All Registration Statements shall be signed as follows: a. For a corporation: by a responsible corporate officer. For the purpose of this chapter, a responsible corporate officer means: (1) a president; secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy -making or decision -making functions for the corporation; or (ii) the manager of one or more manufacturing, production, or operating facilities, provided the manager is authorized to make management decisions that govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long-term compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for state permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures; b. For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or c. For a municipality, state, federal, or other public agency., by either a principal executive officer or ranking elected official. For purposes of this chapter, a principal executive officer of a public agency includes: (i) the chief executive officer of the agency or (ii) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency. Certification: "I certify under penalty of law that I have read and understand this Registration Statement and that this document and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering the information, the information submitted is to the best of my knowledge and belief true, accurate, and complete. I am aware that there are significant penalties for submitting false information including the possibility of fine and imprisonment for knowing violations." Printed Name: Jeremy Sw!* on behalf of Stanley Martin Companies, LLC Signature (signed In ink): Date: Section VII. Submittal Instructions. Submit this form to the Virginia Stormwater Management Program (VSMP) Authority. If the locality is the VSMP Authority, please send your Registration Statement submittal directly to the locality; do NOT send this form to DEQ. A list of local VSMP Authorities is available here: VSMP Authorities. If DEQ is the VSMP Authorityplease send to: Department of Environmental Quality Office of Stormwater Management Suite 1400 PO Box 1105 Richmond VA 23218 con structiongp mdeq.Virginia.goy If the locality is the VSMP Authority, please send to: I iT4 K-.Ifl W11,71U Rev 04/2019 PAGE 4 17 Q Project Area 0 LOD Stream Waterbody I& Primary Construction Entrance VPDES Site Registration Map Brookhill - 9-11 WSSI #31005.01 Longitude of Primary CE:-7BA53884' Latitude of Primary CE: 38.1069W Date Source: Albemede County Digital Data Image Source: Virginia Base Mapping Program (VBMP) -Spring. 2018 'Area is based on GIS data, and does not reflect Me legal acreages of the site. For exact LOD acreage, see approved plans. Wetland Studies and Solutions, Inc. a DAVEY* company 0 NORTH 300 Feet Original Scale: 1 "= 300 Exhibit 1 Section 2. Notice of general permit coverage (This notice is to be posted near the main entrance according to 9VAC25-880-70, Part II, section C.) (Provide a copy of the DEQ coverage letter when obtained) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 3. Nature of activity (Provide a detailed narrative of the construction activities. Include or reference a construction schedule and sequence. Include any phasing.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 4. Erosion and Sediment Control Plan. (Provide a reduced, 11x17 copy of the latest Erosion and Sediment Control Plan. Do not reference only.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County GENERAL NOTES CAN NFRS: TMPo4600-oo-oo-oigB4 CROCKETT CORPORATION CIO HAUGH & HELVIN 435 PARK ST CHARLOTTESVILLE, VA 22901 DEVELOPER: RIVERBEND DEVELOPMENT, INC. 455 SECOND STREET SE, SUITE 400 CHARLOTTESVILLE, VA 22903 ENGINEER: COLLINS ENGINEERING zoo GARRETT ST, SUITE K CHARLOTTESVILLE, VA 32902 TAX MAP: D4600-00-DO-02984 D.B. 5011, PG. 370 162.75 ACRES ZONING: NEIGHBORHOOD MODEL DEVELOPMENT DISTRICT (ZMA2o18000z2 WITH PROFFERS - APPROVED BYTHE BOARD OF SUPERVISORS ON JULY 27, zoz9) THE CODE OF DEVELOPMENT AND AND APPLICATION PLAN FROM ZMA201500007 ARE STILL VALID AND STILL APPLY TO THE BROOKHILL PROJECT. ENTRANCE CORRIDOR OVERLAY (EC), AIRPORT IMPACT OVERLAY (AIA), MANAGED AND PRESERVED SLOPES OVERLAY DISTRICT, AND FLOOD HAZARD OVERLAY (FH) ZONING DISTRICT. NOTE: A SPECIAL USE PERMIT APPLICATION (SP201500025) WAS APPROVED TO ALLOW THE GRADING ACTIVITIES IN THE FLOOD HAZARD OVERLAY DISTRICT (FH). THE SP WAS APPROVED ON NOVEMBER 9, 2016 BY BOS WITH CONDITIONS. TOTAL PROJECT AREA: 04600-00-00-03-984-162.75AC. (PORTION OF) BLOCK 9 -io.99 AC BLOCK zo - 9.66 AC BLOCK u - 13.92 AC TOTAL = 34.56 AC PROPOSED USE: BS TOWNHOUSE (VILLA) UNITS ALLOWABLE DENSITY: BLOCK 9: ig UNITS (MIN.) TO 57 UNITS (MAX.) BLOCK io: 9 UNITS (MIN.) TO 27 UNITS (MAX.) BLOCK zz: 12 UNITS (MIN.) TO 53 UNITS (MAX.) PROPOSED DENSITY: BLOCK g: 33 UNITS BLOCK zo: 24 UNITS BLOCK zz: 28 UNITS REQUIRED SPACE: BBB90 1322 OPEN SPACE PROVIDED: CIVICIPARK GREENWAY OPEN SPACE BUFFERS TOTAL GREEN SPACE o i.BACRES o 2.8ACRE5 .6 ACRES o .6ACRES i.o ACRES o.2ACRES ACRES 1.2A RE 8.2ACRES 1.3 ACRES o 2o.7 ACRES CIVICIPARK GREENWAY OPEN SPACE BUFFERS TOTAL GREEN SPACE o z. ACRES o. ACRES z. ACRES . 2ACRE5 o ACRES 0.92 ACRES o. oACRES 26 ACRES 2.2o ACRES 8.66 ACRES o.54 ACRES o zo.3o ACRES 891 B2o Bss BUILDING HEIGHTS: NO MINIMUM HEIGHT REQUIREMENT. MAXIMUM - 3 STORIES / 4o FEET SETBACKS: NEIGHBORHOOD DENSITY RESIDENTIAL- BLOCK STO BLOCK ig FRONT SETBACK: W MIN.& 25' MAX. PORCH SETBACK: 5' MIN & z5' MAX. SIDE SETBACK: 5' MIN & NO MAX. SIDE, CORNER LOT SETBACK: 5' MIN. & NO MAX. REAR SETBACK: io' MIN. & NO MAX. GARAGE SETBACKS: 18' MIN. SUBDIVISION STREETS: CURB & GUTTER WATERSHED: SOUTH FORK RIVANNA RIVER AGRICULTURALTORESTALDISTRICT: NONE TOPOGRAPHY & SURVEY: TOPOGRAPHY WAS COMPILED FROM SURVEY BY LINCOLN SURVEYING AND BELL LAND SURVEYS, JANUARY 2015. BOUNDARY INFORMATION WAS COMPILED BY LINCOLN SURVEYING ON MARCH 7,z0a5. FIELD VERIFIED BY COLLINS ENGINEERING IN NOVEMBER OF zozg. DATUM: NAVD 1988 EXISTING VEGETATION: MOSTLY WOODED. PRESERVED/MANAGED SLOPES: PRESERVED AND MANAGED STEEP SLOPES ARE SHOWN WITHIN THE LIMITS OFTHE PROPERTY. SEE EXISTING CONDITIONS SHEET FOR LOCATIONS. LIGHTING: NO LIGHTING IS PROPOSED. PHASING: THESE (3) BLOCKS SHALL BE DEVELOPED AS ONE PROJECT WITH (i) LAND DISTURBANCE PERMIT AND(i) LAND DISTURBING ACTIVITY. THETOTALACREAGE OF THE LAND DISTURBANCE WITHIN THIS PHASE IS 18.85 ACRES. RECREATION: UPLAND PARK (CIVIC SPACE #z) i. OUTDOOR PLAZA AND MEETING AREA z. TOT LOT PLAYGROUND AREA 3. OPEN RECREATIONAL AREA 4. HARD SURFACE PLAY COURT SUCH AS A BASKETBALL COURT, TENNIS COURT, OR SPORT COURT S. MINIMUMS SPACES FOR PARKING 6. TRAIL CONNECTION TO THE GREENWAY TRAILS PARKING: TWO (z) OFFSTREET PARKING SPACES ARE PROVIDED PER TOWNHOUSE UNIT. ONE (z) ON STREET PARKING SPACE PER EVERY 4 UNITS IS REQUIRED. B5 UNITS 14 = zz PARKING SPACES REQUIRED zz ON STREET PARKING SPACES PROVIDED BUILDING SITES: EACH LOT CONTAINS A BUILDING SITE THAT COMPLIES WITH THE REQUIREMENTS OF SECTION 4.2.2 OF THE ALBEMARLE COUNTY ZONING ORDINANCE. BURIAL SITES: NO CEMETERIES WERE FOUND DURING FIELD INVESTIGATION OF THESE (3) BLOCK AREAS. FLOODPLAIN: THERE IS A FLOODPLAIN LOCATED ON THIS SITE. FEMA MAP ID 51003CO28oD DATED FEBRUARY 4, 2005. IN ADDITION, A DAM BREACH INUNDATION ZONE EXISTS ON THE PROPERTY FOR THE SOUTH RIVANNA DAM, WHICH 15 A FEDERAL DAM LOCATED UPSTREAM OF THE PROPERTY. LANDSCAPING: A LANDSCAPING PLAN IS PROVIDED WITH THE FINAL SITE PLAN IN ACCORDANCE WITH ALBEMARLE COUNTY ORDINANCE SECTION 3z.7.9. STREET TREES ARE INCLUDED WITH THE LANDSCAPING DESIGN TO INCORPORATE STREET TREES EVERY 4o' ALONG THE ROADWAYS. LAND AREAS: OPEN SPACE: 28.27 ACRES (54.6%) LOTS: 7.66 ACRES (22.9%) ROW DEDICATION: 7.51 ACRES (22.5%) PROPOSED IMPERVIOUS AREAS: ROADS & SIDEWALK: z7o,625SF BUILDINGS, PATIOS/DECKS: 95,76DSF DRIVEWAYS: 37,800 SF AMENITIES: 7,i5o SF TOTAL IMPERVIOUS AREAS: 3zz,335SF (7.35ACRES) RETAINING WALLS: RETAINING WALLS ARE PROPOSED WITH THIS PROJECT. SEE GRADING & DRAINAGE PLAN FOR WALL LOCATIONS. TRASH: EACH LOT SHALL HAVE AN INDIVIDUALTRASH CONTAINER. UTILITIES: ALBEMARLE COUNTY WATER & SEWER AFFORDABLE HOUSING: AFFORDABLE HOUSING TO BE PROVIDED IN ACCORDANCE WITH THEAPPROVED BROOKHILL PROFFERS. SEE SHEET36. TOTAL PROPOSED UNITS: 85 TOTAL PROPOSED AFFORDABLE UNITS: z3UNITS ORCASH IN -LIEU OF AFFORDABLE UNITS NOTE: LOCATION OF AFFORDABLE UNITSTOBEDETERMINED WITH THE FINAL SITE PLAN OR CASH IN -LIEU OPTION. BROOKHILL -BLOCKS 9, 10, & 11 VSMP PLAN - WP020200004 JI LLI -J = O F- C_z L1'1 I I LIJ J m IN < !� Q O (/1 Ij I I I I II I II II II I I L RIVANNA MAGISTERIAL DISTRICT ALBEMARLE COUNTY, VIRGINIA P,V EN V V _ _ R I , I I I I e W'�l'•YYYI'YY,rYYI^�Y - r_.r'_..r- � i"-r-r" �" , -� - .-r'Y�i `Il^r I \ 1 \ --_-. --- ------ z---------------------------------------------------------- ,7=--- PRO ED*DUTE 29 BUFFER 2o0' WIDE BUFFER yyy---17o' NATURAL UNDISTURBED BUFFER.'�� d 3o'PLANTEOIREFORESTED BUFFER) \ / ,IT tt- I I LL I w OPEN SPACE � p r LL I I � _ I a a \ I \r 1 3 0 IN EXTENSION OF ARCHER AVENUE TO ASHWOOD 1 1 BOULEVARD TO BE COMPLETED (UNDER A - - - - \ EPARATE SET OF PLANS) IN ACCORDANCE \ I \ WITH THE APPROVED BROOKHILL PROFFERS.I IN - \ I I � ' LOT LOT LOT LOT S POLO GROUN� VICINITY MAP: SCALE: 1" = 2000' Sheet List Table Sheet Number Sheet Title I COVER 2 EXISTING CONDITIONS 3 EROSION & SEDIMENT CONTROL NOTES, NARRATIVE & DETAILS 4 EROSION & SEDIMENT CONTROL PLAN - OVERVIEW OF PERIMETER MEASURES 5 PHASE I EROSION & SEDIMENT CONTROL PLAN 6 PHASE I EROSION & SEDIMENT CONTROL PLAN 7 PHASE I EROSION & SEDIMENT CONTROL PLAN 8 PHASE II EROSION & SEDIMENT CONTROL PLAN 9 PHASE II EROSION & SEDIMENT CONTROL PLAN 10 PHASE II EROSION & SEDIMENT CONTROL PLAN 3.1 PHASE III EROSION & SEDIMENT CONTROL PLAN 12 PHASE III EROSION & SEDIMENT CONTROL PLAN 13 PHASE III EROSION & SEDIMENT CONTROL PLAN 14 EROSION & SEDIMENT CONTROL DETAILS i5 BOX CULVERT PLAN 16 BOX CULVERT DETAILS 17 STORMWATER MANAGEMENT PLAN 18 STORMWATER MANAGEMENT DETAILS 3.9 STORMWATER MANAGEMENT DETAILS zo MANUFACTURER STANDARD NOTES & DETAILS 23 SUBAREA z ONE PERCENT PLAN zz OVERALL BROOKHILL WATER QUALITY COMPLIANCE TABLE & AERATOR DETAILS Lic. No. 035791 � 8/04/20 141 H z w O 8 8 U z J Z z z z c O O p O 03 0 r4 N N Z(••i w = \ \ ; Z V7 J N .N-I O OZ ID 03 w W LU LU H to a z z 14 a a a rA vIEu� 0 3 w g N CL y" L a a a ow V) U) LLI LLJ ce W w / PROPOSED GREENWAY OPEN SPACE\ \ \\`- \ 22 TOTAL SHEETS • LOTS I �' \ \ \ \\ EROSION CONTROL HANDBOOK SPfCIFICAAON NUAIBEDIMENT RJ�� \ - - I , I ( \ \ _ \ SA o SAFETY FENCE 3.01 LOT 6 1 LOT 34 LOT 35 \ I LOT37 \ LOT (I LOT \ \ �) \ \ CE � CONSTRUC77ON ENTRANCE 3.02 I , ' 1 / Lor 39 \ � ` ( \ \ C LOT 33 1 LOT B 111 r LOT 4o ` 1 \\ \ \ CR CR CONSTRUCTION ROAD 3.03 t I _ ` ` 1 \ STABILIZATION '`•'' " / LOT42 \ \ ��_ .. \ Sr �Y x SIL T FENCE J. 05 LOT 32 _ yPROPOSEDPUBUCROAD. • , ,r. , I LOT32 ^ _ _ 1 � Loru / \ FUTURE ROAD EXTENSION \ \ IP � STORM DRAIN INLET PROTECTION 3.07 ( LOT 43 \ \ - - + b \ (UNDER DIFFERENT SET OF PLANS) \ • t - 1 - III Lor s7 \ LOT 44 TEMPORARY DIVERSION DIKE 3.09 LOT N ( I \ \ LOTg 1 �i TEMPORARY ROW DIVERSION 3.11 j�or29 LOT2o LOT \ F OURTYARD Lor4e \\ ST SEDIMENT TRAP 3.13 LOTze $i n. LOTS I LOT54 POq- Lorca ( \ ' 1 SB SEDIMENT BASIN 3.14 LOT27 AOcp LOT„ (( 11 / \ \ \ OP OUTLET PROTECTON 3.18 LOT 53 •\ ` /^\ \\ \ RR RIPRAP J. is L0T26 ( LOT23 -( ; / Lorn i LOT48 \`� / \ PROPOSED GREENWAY O LOT49 `0 7 L075R - - INN / / LOT5o LOTS9 CD �� UTILITY STREAM CROSING 3.25 _ Lor:S �\ l a% y / `� j TEMPORARY SEEDING 3,57 LLLOT OPEN SPACE ./ / ' � ' •�\ • / PERMANENT SEEDING 3.32 LOT 63 � � ��.. \ SAy� �0P° / Lors4 \ O TREE PROTECTION 3.38 ' 1 LOT 23 •. LOT v7 _y . \ Lors'/IN Lo7ss \ `\ DC DC DUST CONTROL 3.39 LOT 83- L0T22 v \ OPEN SPACE 1 LOT m .. !' _ ...� _ / - ` LOT OPEN SPACE\V//- i J/ LOT PROPOSED GREENWAY �L0T7B �/ n \ \ LOT 72',�..� LOT 77 `�•� Lor76 �\ .71 I PROPOSED GREENWAY LOTSSLUI \\\ OPEN SPACE \ i APPROVED \ Community Develo Albemarle Department \ \ GRAPHIC .-'- -- _ Date os/17/�'020 \ r., 7 , // \ t 320 ----- 1 \\ �\ /\ File WP0202000004 \ SHEET `LAYOUT / I I -j-- -j 1N_F�EET - - SCALE: 1" = 80' 1 i34E311 = 80 'IC � ii i_.,'-z - -11 QvM-I N Ui ti ti 0 7z � Qti Z CIO � J 06 M I..L I N V ) O W Cn N N WT� LLi J T 1 J 3333333333. F~-- O L9 O TI QLU Z = O W I V Y W U �_ O Ln llp^^ VJ j LLI CO Zw � J J � _ W J Q � O O Q o O U WLU u w d Ln JOB NO. 182150 SCALE 1 "=80' SHEET NO. 1 J 1 _ _ TMP: 04600-oo-oo-oiBBo I' I, T O o OWNER: HORNE LAND CORPORATION11,I Z ACREAGE: 46.43 AC IL Iw ZONING: RURAL 1 w µJ LU DB/PG: 624/3-91 1 113, Q lI Iw N ATC�HLI / c TMP: 046BS-oo-oo-oo1Co SEET= SH r�AV�NSW�OD OWNER: COUNTY OFALBEMARLE --_ - - - H ACREAGE: AC 77 ��' •I•I•I \ (ZONING: PUD I , ` ', TMP: 046,B5-oo-0o-000To iDB/PG:1973/473 OWNER: FOREST LAKES COMMUNITY - I ASSOCIATION INC I ACREAGE: 4.12AC ZONING: PUD a - DB/PG: 1973/473 _ S64 o,,'s9.z8"E 461.437'- ----- �--- - ---------------------- -- -�-------------------- - - - - - - - - - - - - - - --------- ---- - ,- - I 5z2° 56 43.00"W 59 990 CI I v � � � � �.�' I I 19,�1,I`� �� -- � - �v., - GENERAL NOTES: A I�/ i �N84-°47'13.� 3g.galp' - 1. NO FLOODPLAIN EXISTS ON THE SUBJECT SITE PER FEMA ' ` ��� �', \' ,� f l ��� ��� QQ� SCOTT/R. CITLLINS2Z Lic. No. 0357911� 3/12/20 rrv� \ FLOODPLAIN MAPS # 51003CO280D.y �' 4 e00 F In 2. A PROPOSED GREENWAY IS SHOWN ON THE SUBJECT PROPERTY. r T . 'w 3. BEFORE BEGINNING SITE WORK, THE CONTRACTOR SHALL �q INVESTIGATE AND VERIFY THE EXISTENCE AND LOCATION OF 1 I III � , �, `. � � I I I u u i r u I I \ UNDERGROUND UTILITIES MECHANICAL AND ELECTRICAL SYSTEMS I AND OTHER CONSTRUCTION AFFECTING THE WORK. BEFORE o z z z EXISTING SANITARY SEWER AND I - �- A F- Q 0 \ CONSTRUCTION THE CONTRACTOR SHALL VERIFY THE LOCATION Ij1 0 0 0 — 20' SANITARY SEWER EASEMENT \, `• EXISTING STREAM \ AND INVERT ELEVATIONS AT POINTS OF CONNECTION OF SANITARY \ k v v l II \ r 00 � \ � SEWER, STORM SEWER, AND WATER SERVICE PIPING; \ ' suj sa'os \ UNDERGROUND ELECTRICAL SERVICES AND OTHER UTILITIES. THE o cn 00 00 i y�I,I1� -°r 636324. ( I li / I _� Z N aID Jo, BLOCK 1 CONTRACTOR SHALL FURNISH LOCATION DATA FOR WORK RELATED \ a o == � 3 TO PROJECT THAT MUST BE PERFORMED BY PUBLIC UTILITIES F- w w w o e / z o 0 �� V SERVING THE PROJECT SITE, �I�II� I� �I �' w z '^ � / z z e 4. CONTRACTOR SHALL VERIFY SIZE, TYPE &LOCATION OF EXISTING I' v' Lu SITE. a S ON THE S FBI ° _ \ EXISTING WETLANDS TYP. WATER LINE \\ � \ \� SE THIS SH E > n TMP: 04665-00-00 ooiCo �T - � W Lu w w w OWNER: COUNTY OF ALBEMARLE i � j 1 � I ACREAGE, 4.75AC ZONING: PUD \ 1 DB PG: 1 ! I l 973/473 \ � S I III s I I sF \ I d 70' UNDISTURBED BUFFERAREA PROPOSED— _ \ 564°04 39.28"E 461 437' _ GREENWAY,TYP. \ \ \ - - BLOCK3.2 o 3o' LANDSCAPE/REFORESTED BUFFER 522 °56'43 od"Ws 990 -- Till ---- \ wj BLOCK io A \ �i ' \ \ ROJECT BOUNDARY (TYP.) I I A \ 8399z 4 47 i3 6 o' I - s I e \ EXISTING SANITARY SEWER AND so e x a Y I I BLOCK g 20 SANITARY SEWER EASEMENT ccl ALBEMARLE COUNTY � � ,}� BLOCK \ w 3 MANAGED STEEP SLOPES ` \ \ \ / 1 - I R — - \ ALBEMARLE COUNTY LIMITS OF PRESERVED STEEP SLOPES \ � \ � \01 DAY DAM BREACH 1 � \ �j��� � �y� � Y� ♦ � � b b_ _.. / z7 37'E 576.929' ��`- a . 3 4 53 5 - 0 . ' S 6 - S L B, z8', R= B. o' - \ \ .': \ I 1 o N63044 2737 W 576.929' - - _.- \ � �. .qo Ilk ° © z m Sa°49'z.46"W 50.273' -N30 \ \ m L 43996 R 46¢50' __ J o s ✓ \ PROPOSED \ Ni9°3o'n.za E 51.070'— GREENWAY, TYP. \ \ ♦ on�. @ ® 546 o o SWM FACILITY a \ \ ACCESS EASEMENT a \ \ ♦ ® / \ \ D.B.5121, PG. 673, SWM FACILITY& N J.; \ 44° ao BLOCK 413 ACCESS EASEMENT N 405 0 / I --- INITIALS TE PLAN--� D.B. 5121, P6. 673 `\ \ \ 4aJ,•�4zJ. -- �� - W66.a69' �. �]�I� < 5 APPROVED o5/25/2oi8 I BLOC N7�°69I \ n n 4 - - o 0 �SDP202800050 � I _- _ `- \ - � � � r,j K 2 .. - . �- - _ - - . ,� _ i♦\\ �j i i N mia a ,: \ i 0o 00 0 00 0000OO �/.-- --,- FINAL SITE PLAN \ ....� � EXISTING LIMITS \ \ — �♦ �® ® —� �0 OFTREELINE ® V 00 \ I - „ PROJECT BOUNDARY (TYPJ _00 II loo' PRIVATE LANDSCAPE w — UFFER EASEMENT I�. EXISTING STREAM — ♦ p.B-5121PG.6726 °o Q A A � ROVELIMIT OFFEMAAPPD 10tooYRFLOODPLAIN N59°04'24.66'w 92-959' BLOCK( ° r , 1 ' I , 7 I � 3 PROPOSED ROAD 4 (CURRENTLY UNDER REVIEW) -- --- y- - — - SUB201700117 1 Yw - - .. N GRAPHIC SCALE I I o ,, 4� w— --„ w o iao zoa444 1 - p , , - IN FEET) - ---- - ---- - \ f 1 inch — 100 ft. - OO \ \ Lu Q0) M N O\ .~i ti m ID Lu z � w C`I u M J ZM� rn > cq N ° M 3 N 0 N p o Wa) N ° W > rl 0 Lu T� ZJ s > c z W O p O L9 _jO T Q 0 z ° s cIf � O 3 zQ u U (D V / a z ° W cn w U x I O E 0 ul - J c 0 � W W z coz Z U w z z F__' 0 J U LLI o o J Q U 0> 0�0 O x U °° W o H E 0 w a L JOB NO. 182150 O N SCALE 1 "=100' 0 SHEET NO. n m 1992 3.38 EROSION �&� SEDIMENT CONTROL EROSION CONTROL NOTES MEASURES: : 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE /N DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND STRUCTURAL PRACTICES USED /N THIS SECTION CONSIST OF THE FOLLOWING MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICA7ONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VT 3.01 SAFETY FENCE." 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. A PROTEC77✓E BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. J. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. AS THE FIRST STEP /N CLEARING. APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED UNSAFE BY VIRTUE OF P07EN77AL ACCESS BY THE PUBLIC. 4, A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED THE SITE AT ALL TIMES. 3.02 CONSTRUCTION ENTRANCE 5. PRIOR TO COMMENCING LAND DISTURBING ACTIW77ES IN AREAS OTHER THAN A STABILIZED CONSTRUCTION ENTRANCE LOCATED AT POINTS OF VEHICULAR INGRESS AND INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR EGRESS ON A CONSTRUCTION SITE TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. CONSTRUCTION ENTRANCES SHALL CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY 774E PLAN APPROVING BE INSTALLED AS SHOW ON 774E PLANS TO REDUCE THE AMOUNT SEDIMENT TRANSPORTED AUTHORITY. ONTO PUBLIC ROADWAYS. 6. THE CON7RACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION 3.03 CONS7RUCTION ROAD STABILIZATION: CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTA7ON AS THE TEMPORARY STABILIZATION OF ACCESS ROADS, SUBDIWS/ON ROADS, PARKING AREAS, DETERMINED BY THE PLAN APPROVING AUTHORITY. AND OTHER SITE VEHICLE TRANSPORTATION ROUTES WITH STONE IMMEDIATELY AFTER 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES GRADING. TO REDUCE EROSION OF TEMPORARY ROADBEDS BY CONSTRUCTION TRAFFIC AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING S17F DEVELOPMENT DURING WET WEATHER AND TO REDUCE EROSION AND SUBSEQUENT REGARDING OF UN77L FINAL STABILIZAT70N IS ACHIEVED. PERMANENT ROADBEDS BETWEEN THE TIME OF INITIAL GRADING AND FINAL STABILIZATION. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED USE WHEREVER STONE -BASE ROADS OR PARKING AREAS ARE CONSTRUCTED, WHETHER FILTERING DEVICE. PERMANENT OR TEMPORARY, FOR USE BY CONSTRUCTION TRAFFIC 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY 3.05 SILT FENCE: AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC STRETCHED BE MADE IMMEDIATELY. ACROSS AND ATTACHED TO SUPPORTING POSTS AND ENTRENCHED, TO DURING CONSTRUCTION INTERCEPT AND 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. OPERA TONS /N ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE, AND TO DECREASE DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURIN11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL THE VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. THE SILT SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND FENCE BARRIERS SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO 07HER DEBRIS. FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS INDICATED. THEY SHALL BE 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE PER ZONING ORDINANCE SECTION 5.1.28. VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). 13. ALL INERT MATERIALS SHALL BE TRANSPORTED /N COMPLIANCE WITH SECT70N 13-301 307 STORM DRAW INLET PROTECTION: OF THE CODE OF ALBEMARLE. 14. BORROW FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP Q SHALL BE LIMITED TO THE HOURS OF h 00 AM TO 9: 00 PM. INLET OR CURB INLET TO PREVENT SEDIMENT FROM ENTERING STORM DRAINAGE SYSTEMS STORM DRAIN INLETS AREE 70 BE MADE OPERATIONAL BEFORE PERMAANENTNENT 15. BORROW FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAT WHERE S PRIOR PERMANENT STAB/LIZON OF THE DISTURBED AREA. INLET PR APPLIES MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIM/ZE ANY HAZARD TO PERSONS, STABILIZATION OF THE CORRESPONDING DISTURBED DRAINAGE AREA. PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE. 3.09 TEMPORARY DIVERSION DIKE,, 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A CONVERT TO PERMANENT STORMW47ER MANAGEMENT FACILITIES WHERE APPLICABLE SLOPING DISTURBED AREA. TO DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE AWAY FROM UNPROTECTED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET TO SALE OF ANY LOT, UNIT BUILDING OR OTHER PORTION OF THE PROPERTY. DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING I Z TEMPORARY STABILIZAT70N SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING FACILITY SUCH AS A SEDIMENT TRAP OR SEDIMENT BASIN. USE WHEREVER STORMWATER /S TO BE AT 75 LBS ACRE, AND IN THE MONTHS OF SEP TEMBER TO FEBRUARY TO RUNOFF MUST BE TEMPORARILY DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON S17F DURING CONSTRUCTION. THESE STRUCTURES GENERALLY HAVE A CONSIST A 50/50 MIX OF ANNUAL RYGRASS AND CEREAL WINTER RYE, OR IN MARCH LIFE EXPECTANCY OF 18 MONTHS OR LESS, WHICH CAN BE PROLONGED WITH PROPER AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF MAINTENANCE. GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 8OLBS/100SF. ALIERNA77VES ARE SUBJECT TO APPROVAL BY THE EROSION CONTROL INSPECTOR. 3.11 TEMPORARY RIGHT-OF-WAY DIVERSION: 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND A RIDGE OF COMPACTED SOIL OR LOOSE ROCK OR GRAVEL CONSTRUCTED ACROSS 1000SF, AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS/ DISTURBED RIGHTS -OF -WAY AND SIMILAR SLOPING AREAS. TO SHORTEN THE FLOW LENGTH MULCH. WITHIN A SLOPING RIGHT-OF-WAY, THEREBY REDUCING THE EROSION POTENTIAL BY INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FER7LIZER SHALL BE APPLIED AT DIVER77NG STORM RUNOFF TO A STABILIZED OUTLET. GENERALLY, EARTHEN DIVERSIONS ARE 1000LES/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING APPLICABLE WHERE THERE WILL BE LITTLE OR NO CONSTRUCTON TRAFFIC WITHIN THE SHALL BE APPLIED AT 180LBS/ACRE AND CONSIST OF 957 KENTUCKY 31 OR TALL RIGHT-OF-WAY. GRAVEL STRUCTURES ARE MORE APPLICABLE TO ROADS AND OTHER FESCUE AND 0-59 PERENNIAL RYGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS RIGHTS -OF -WAY WHICH ACCOMMODATE VEHICULAR TRAFFIC. TO BE APPLIED AT BOLBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE 3.13 TEMPORARY SEDIMENT TRAP: EROSION CONTROL INSPECTOR. A TEMPORARY POND/NG AREA FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH STONE OUTLET. TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS LONG RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIRED ENOUGH TO ALLOW THE MAJORITY OF THE SEDIMENT TO SETTLE OUT USE BELOW IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 507 OF THE WET STORAGE DISTURBED AREAS WHERE THE TOTAL CONTRIBUTING DRAINAGE AREA /S LESS THAN 3 ACRES, VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN WHERE THE SEDIMENT TRAP WILL BE USED NO LONGER THAN 18 MONTHS, AND IT MAY BE NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION CONS7RUCTED E17HER INDEPENDENTLY OR IN CONJUNCTION WITH A TEMPORARY DIVERS/ON DYKES WHICH ARE COLLEC77NG SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED DIKE. AND REPAIRED IMMEDIATELY. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED 3.14 TEMPORARY SEDIMENT BASIN: A TEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE STRUCTURE WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A NEEDED, SUBJECT TO APPROVAL BY THE EROSION CONTROL INSPECTOR. DRA/NAGEWAY. TO DETAIL SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS 21. THE E&S INSPECTOR HAS THE AUTHORITY TO ADD OR DELETE E&S CONTROLS AS NECESSARY IN THE FIELD AS SITE COND177ONS CHANGE. IN ADDITION NO SEDIMENT IN "WET" AND 'DRY" STORAGE LONG ENOUGH FOR THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. APPLIES BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBUTING DRAINAGE BASIN OR TRAP CAN BE REMOVED WITHOUT WRITTEN AUTHORIZATION. AREA IS EQUAL TO OR GREATER THAN THREE ACRES THERE MUST BE SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY FOR THE CONSTRUCTON OF A TEMPORARY IMPOUNDMENT. 3.18 OUTLET PROTECTION: SOIL DESCRIPTION STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPATING DEVICES PLACED 27B-ELIOAK LOAM-2 TO 77 SLOPES. SOIL IS WELL DRAINED WITH A MEDIUM RUNOFF AT 774E OUTLETS OF PIPES OR PAVED CHANNEL SECTIONS 70 PREVENT SCOUR AT STORMWATER OUTLETS TO PROTECT THE OUTLET STRUCTURE AND TO MINIMIZE THE - - CLASSIFICATION. SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0 8" THICK THE POTENTIAL FOR DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80". CONCENTRATED STORMWATER FLOWS. APPLICABLE TO THE OUTLETS OF ALL PIPES AND 27C-ELIOAK LOAM-7 TO 15% SLOPES. SOIL IS WELL DRAINED WITH A MEDIUM RUNOFF ENGINEERED CHANNEL SECT70NS. CLASSIFICATION. SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0-8" THICK. THE 3.19 RIPRAP: DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80". A PERMANENT, EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE WITH 34C-GLENELG LOAM-7 TO 75% SLOPES. SOIL IS WELL DRAINED WITH A MEDIUM RUNOFF FILTER FABRIC OR GRANULAR UNDERLINING TO PROTECT THE SOIL FROM THE EROSIVE CLASSIFICATION. SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0-8" THICK. THE FORCES OF CONCENTRATED RUNOFF, SLOW THE VELOCITY OF CONCENTRATED RUNOFF WHILE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80". ENHANCING THE POTENTIAL FOR INFILTRATION AND TO STABILIZE SLOPES WITH SEEPAGE 340-GLENELG LOAM-15 TO 259 SLOPES. SOIL IS WELL DRAINED WITH A HIGH RUNOFF PROBLEMS, AND/OR NON -COHESIVE SOILS USE WHEREVER SOIL AND WATER INTERFACE CLASSIFICATION. SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0-6" THICK. THE AND THE SOIL CONDITIONS, WATER TURBULENCE AND VELOCITY, EXPECTED VEGETATIVE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80". COVER, ETC., ARE SUCH THAT THE SOIL MAY ERODE UNDER THE DESIGN FLOW CONDITIONS 39D-HAZEL LOAM-15 TO 257 SLOPES. SOIL IS EXCESSIVELY DRAINED WITH A MEDIUM 3.25 UTILITY STREAM CROSSING: RUNOFF CLASSIFICATION. SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0-10" A STRATEGY FOR CROSSING SMALL WATERWAYS WHEN IN -STREAM UTILITY CONSTRUCTION IS WA H O DEPTH THE THICK D THETER TABLE lS GENERALLY MORE THAN 80". C E T INVOLVED. TO HELP PROTECT SEDIMENT FROM ENTERING THE STREAM FROM CONSRUC77ON - 95-WEHADKEE SILT LOAM-0 70 29 SLOPES, SOIL IS POORLY DRAINED WITH A VERY WITHIN APPROACH AREAS. TO MINIMIZE THE AMOUNT OF DISTURBANCE WITHIN THE STREAM HIGH RUNOFF CLASSIFICATION. SURFACE LAYER IS TYPICALLY SILT LOAM AND ITSELF. GENERALLY APPLICABLE TO FLOWING STREAMS WITH DRAINAGE AREAS LESS THAN ONE SQUARE MILE ABOUT 0-10" THICK. THE DEPTH TO THE WATER TABLE IS GENERALLY 0-30". 331 TEMPORARY SEEDING: REFERENCE: WEB SOIL SURVEY ONLINE DATABASE, FOUND AT THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING http://websoilsurveynres.usdo.gov/opp/WebSoilSurveyospx WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PER/OD OF MORE THAN 30 DAYS TO REDUCE DAMAGE FROM SEDIMENT AND EROSION CONTROL NOTES RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS EXPOSED DURING CONSTRUCTION UNTIL PERMANENT VEGETATION OR OTHER EROSION ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETA7VE AND STRUCTURAL EROSION CONTROL MEASURES CAN BE ESTABLISHED. AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE ORGIN/A 3.32 PERMANENT STABILIZATION: EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULA770NS VR THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLANTING 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO ES-2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO PERMANENTLY STABILIZE DISTURBED AREAS /N A MANNER THAT /S ECONOMICAL ADAPTABLE TO S17E CONDITIONS, AND ALLOWS SELEC77ON OF THE MOST APPROPRIATE PLANT MATERIALS THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE TO IMPROVE WILDLIFE HABITAT TO ENHANCE NATURAL BEAUTY. UPON COMPLE7ON OF COMMENCEMENT OF LAND DISTURBING ACTI V/7Y, AND ONE WEEK PR/OR TO CONSTRUCTION ACTIN77£S, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. THE FINAL INSPECTION. ES-3: ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PR/OR 338 TREE PRESERVATION AND PROTECTION: TO OR AS THE FIRST STEP IN CLEARING. PROTECTION OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL DISTURBING AND CONSRUC770N ACTIVITY. TO ENSURE THE SURVIVAL OF DESIRABLE BEES BE MAINTAINED ON THE S/TE AT ALL TIMES. WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WATERSHED ES-5:PR/OR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN PROTECTION, LANDSCAPE BEAU7IF7CA770N, DUST AND POLLUTION CONTROL, NOISE REDUCTION, INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OFF -SITE SHADE AND OTHER ENVIRONMENTAL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A FOREST TO URBAN -TYPE USES. APPLIES IN TREE -INHABITED AREAS SUBJECT TO LAND SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND DISTURBING ACTIVITIES APPROVAL BY THE PLAN APPROVING AUTHORITY. 33s DUST CONTROL: EROSION THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROS/ON CONTROL MEASURES NECESSARY TO PREVENT EROSION AND REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOL/TON AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. CONSRUCnON ACTIVITIES TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM CC ALL nICT710BED AREAS ARE TO DRAIN TO APPROVED SED/MENT CONTROL EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING MAY PRESENT HEALTH HAZARDS, RAMC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR S/TE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. MOVEMENT OF DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE /N ES-8: DURING DEWA TERING OPERATIONS, WATER WILL BE PUMPED INTO AN _ ACCORDANCE WITH THE VESCH. APPROVED WATER FILTERING DEVICE. C ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY - NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE I DESCRIPTION OF EROSION &� SEDIMENT EROSION CONTROL NOTES do NARRATIVE CONTROL MEASURES: PROJECT DESCRIPTION: EROSION AND SEDIMENT CONTROL MEASURES.` THE PURPOSE OF THIS LAND DISTURBANCE ACTIVITY /S TO CONSTRUCT RESIDENTIAL HOMES AND THEIR CORRESPONDING INFRASTRUCTURE. THIS PROJECT PROPOSES TO DISTURB 16.85 cc. OF LAND. THE PROJECT WILL BEGIN ITS CONSTRUCTION WITH THE PROPOSED ESC IT IS ANTICIPATED TO USE A CONSTRUCTION ENTRANCE, RIPRAP, OUTLET PROTECTION, MEASURES IMMEDIATELY FOLLOWING PLAN APPROVAL, WHICH IS ANTICIPATED TO BE IN THE WINTER OF 2020. THE WORK /S ANTICIPATED DIVERSIONS, SEDIMENT TRAPS, SEDIMENT BASINS, A UTILITY STREAM CROSSING AND SILT TO BE COMPLETED WITHIN 18 MONTHS AND TO CONCLUDE /N THE SUMMER OF 2021. FENCES TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING WILL BE USED IMMEDIATELY EXISTING SITE CONDIAONS: FOLLOWING ALL LAND DISTURBANCE ACTIVITIES TEMPORARY STOCKPILE AREAS ARE NOT BE THE AREA OF THE PROPOSED DEVELOPMENT IS LARGELY WOODED AREAS WITH OPEN SPACES AND LIGHT UNDERBRUSH. THIS S17F REQUIRED WITH THIS PROPOSED DESIGN. SHOULD FIELD ADJUSTMENTS NECESSITATE A SMALL GENERALLY SLOPES FROM THE WEST TO THE EAST, AND FROM THE NORTH TO THE SOUTH. THE SITE /S GENERALLY STEEP AND IS WELL DRAINED. STOCKPILE AREA, IT SHALL BE DISCUSSED WITH THE ESC INSPECTOR AHEAD OF TIME. THE ADJACENT AREAS: STOCKPILE WILL NEED TO BE MAINTAINED AND STORED FOR LATER SPREADING. STOCKPILE THIS S17E IS BORDERED ON THE EAST BY A STREAM PROPOSED TO BE PRESERVED. NORTH OF THE PROPOSED S17E /S ROUTE 29. WEST LOCATIONS SHALL BE ON SITE AND SHALL BE STABILIZED WITH A TEMPORARY VEGETA7VE OF THE DEVELOPMENT /S A SITE CURRENTLY UNDER REVIEW UNDER A DIFFERENT SET OF PLANS. THUS AREA /S SERVED BY STELLA ROAD COVER. PERMANENT SEEDING WILL BE PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE UNDER SDP 20170011 Z STELLA ROAD IS PROPOSED TO BE EXTENDED WI774 THIS PLAN. TO THE SOUTH OF 774E PROPOSED DISTURBANCES EXCAVATED AND WHERE CONSTRUCTION ACTIW77ES HAVE CEASED. PERMANENT SEEDING SHALL /S THE STREAM REFERENCED ABOVE. THE STREAM WRAPS AROUND THE PROPOSED DISTURBANCES. ALL OF THE AFOREMENTIONED AREAS ARE CURRENTLY VACANT. SILT FENCE WITH WIRE BACKING, DIVERSIONS, SEDIMENT TRAPS & BASINS INLET CONTROLS A UTILITY S7REAM ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR CROSSING AND VARIOUS OTHER ESC MEASURES ARE PROPOSED TO LIMIT THE POTENTIAL FOR CONTAMINA77ON OF THESE ADJACENT MORE. SELECTION OF SEED MIXTURE WILL DEPEND ON THE 77ME OF YEAR APPLIED. TEMPORARY PROPER77ES AND WATERWAYS. SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR OFFSI7E LAND DISTURBANCE, MORE THAN SEVEN DAYS. THESE AREAS SHALL BE SEEDED WITH FAST GERMINATING OFFSITE LAND DISTURBANCE /S LIMITED TO PUBLIC RIGHT-OF-WAY AND AREAS LOCATED WITHIN THE OVERALL BROOKH/LL DEVELOPMENT VEGETATION IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELECT70N OF SEED MIXTURE BOUNDARY. WILL DEPEND ON THE TIME OF YEAR APPLIED. SERE SOIL DESCRIPTIONS ON THIS PAGE AND THE PHASE / EROSION & SEDIMENT CONTROL PLAN FOR BOUNDARIES, SOIL TYPES AND SOIL DESCRIPTIONS. 301 SAFETY FENCE- TO DISCOURAGE ACCESS TO A PARTICULAR AREA. CRITICAL AREAS: 3.02 CONSTRUCT70N ENTRANCE - TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED EXISTING WETLANDS AND INTERMITTENT STREAMS ARE LOCATED ON THE PROPERTY DOWNGRAD/ENT FROM THE PROPOSED DEVELOPMENT PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. THESE AREAS /N ADD/TION TO THE MANAGED AND PRESERVED STEEP SLOPES, ARE CONSIDERED TO BE CRITICAL AREAS. 774E 303 CONSTRUCTION ROAD STABILIZATION - TO REDUCE THE ERGS/ON OF TEMPORARY CONTRACTOR SHALL GIVE EXTRA ATTENTION AND CAUTION /N AND AROUND THESE AREAS TO ENSURE SEDIMENT IS NOT DEPOSITED ON THEM OUTSIDE THE SCOPES THE PROPOSED PLAN. TREE FENCING, SILT FENCING, DIVERSIONS AND SEDIMENT TRAPPING ROADBEDS BY CONS7RUCT/ON TRAFFIC AND TO REDUCE THE EROSION AND SUBSEQUENT DEVICES SHALL ALSO BE INSTALLED AS A FIRST STEP /N LAND DISTURBANCE TO ENSURE THESE CRITICAL AREAS ARE MAINTAINED. AND DISTURBANCE REGARDING OF PERMANENT ROADBEDS BETWEEN THE TIME OF INITIAL GRADING AND FINAL SEQUENCE OF CONSTRUCTION: STABILIZATION. CONSTRUCTION ROAD STABILIZATION WILL BE APPLIED TO THE CONTRACTOR 1. CONTRACTOR SHALL NOTIFY THE ALBEMARLE COUNTY COMMUNITY DEVELOPMENT ENGINEERING DEPARTMENT TO SCHEDULE A PARKING &STAGING AREAS AS NEEDED. A A PRE -CONSTRUCTION MEETING. 305 SILT FENCE- SILT FENCE IS PROPOSED, WHERE SHOWN ON THE PLANS. 2. PRIOR TO DISTURBANCES, THE LIMITS OF DISTURBANCE AND PRESERVED SLOPES SHALL BE FLAGGED AND THE TREE PROTECTION FENCING SHALL BE INSTALLED. NO GRADING MAY BEGIN UN77L THE LIMITS' OF DISTURBANCE AND PRESERVED SLOPES HAVE BEEN 3.07 STORM DRAIN INLET PROTECTION- INLET PROTECTION IS PROPOSED ON INLETS, WHERE FLAGGED AND THE TREE PROTECTION HAS BEEN INSTALLED. SHOWN ON THE PLANS. J. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUC7ON PROCESS WITHOUT THE APPROVAL FROM THE 309 DIVERSION- PERIMETER DIVERSIONS ARE PROPOSED WHERE SHOWN ON THE PLANS TO INSPECTOR ON THE PROJECT. DIRECT RUNOFF INTO A SEDIMENT TRAPPING DEVICE. 4. INSTALLATION OF THE PROPOSED CONSTRUCTION ENTRANCE SHALL OCCUR NEXT. THE CON7RACTOR SHALL APPLY CONSTRUCTION ROAD STABILIZA7ON AS NEEDED. CONTRACTOR SHALL ENSURE THE CONSTRUC7ON ENTRANCE DRAINS TO AN ADEQUATE E&S 313 SEDIMENT TRAP- SEDIMENT TRAPS ARE PROPOSED WHERE SHOWN ON THE PLANS. MEASURE THE CONTRACTOR SHALL INSTALL SEDIMENT TRAP #5 FOR VEHICULAR WASH OFF, ALONG WITH THE ASSOCIATED DIVERS/ON 314 SEDIMENT BASIN- SEDIMENT BASINS ARE PROPOSED WHERE SHOWN ON THE PLANS BERMS AND RIGHT OF WAY DIVERSION BERM. CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE ROUTES JIB OUTLET PROTECTION -OUTLET PROTECTION IS PROPOSED AT THE OUTLET OF PIPES. 3.19 INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY (VEHICULAR) TRACKING RIPRAP- RIPRAP /S PROPOSED AT THE OUTLET OF PIPES. ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED 325 UTILITY STREAM CROSSING -A UTILITY STREAM CROSSING /S PROPOSED FOR THE THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT /S REMOVED CONSTRUC7ON OF STELLA LANE'S EXTENSION. IN THIS MANNER. SEDIMENT LADEN RUN-OFF FROM THE CONSTRUC7ON EN7RANCE AND DISTURBED AREA WITHIN THE DRAINAGE 332 PERMANENT SEEDING -PERMANENT SEEDING /S REQUIRED AND PROPOSED WITH THIS PLAN. AREA TO SEDIMENT 7RAP #5 SHALL BE ROUTED TO THE TRAP WITH THE INSTALLATION OF THE DIVERS/ON BERMS AND ROW 338 TREE PRESERVATION AND PROTECTION- 7REE PROTECTION IS PROPOSED WITH THIS PLAN. DIVERSION BERM. SEE THE ESC PLAN FOR THE REQUIRED LOCATIONS. 5. ONCE THE CONS7RUCAON ENTRANCE HAS BEEN INSTALLED ALONG WITH SEDIMENT TRAP #5 AND ITS ASSOCIATED DIVERSION BERMS Source: Va. DSWC 339 DUST CONTROL -DUST CONTROL IS REQUIRED AND PROPOSED WITH THIS PLAN. AND RIGHT OF WAY DIVERSION BERM, THE CONTRACTOR SHALL INSTALL THE U77LITY STREAM CROSSING (PROPOSED CULVERT CROSSING.) 6. THE CON7RACTOR SHALL INSTALL THE 6' WIDE 2: 1 SIDE SLOPE TYPE B U77LITY STREAM CROSSING AS SHOWN AND NOTED ON PHASE Paced construction entrance for erosion control plans MA/NTENANCE• • I OF THE EROSION AND SEDIMENT CONTROL PLANS. THIS SHALL INCLUDE THE STREAM DIVERSION AND THE INSTALLAT70N OF THE IN GENERAL, DURING CONSTRUCTION THE RLD OR CONTRACTOR ON-SITF WILL CHECK ALL EROSION CULVERT. ONCE THE COUNTY AND VDOT INSPECTORS HAVE APPROVED THE CULVERT INSTALLATION, THE CONTRACTOR MAY INSTALL AND SEDIMENT CONTROL MEASURES DAILY AND AFTER EACH SIGNIFICANT RAINFALL. MONITORING THE FILL MATERIAL OVERALL THE CULVERT. THE DOWNSTREAM EROSION CONTROL MEASURES SHALL BE INSTALLED PRIOR TO THE REPORTS WILL BE REQUIRED FROM THE RLD IF NEEDED. SPECIFIC ATTENTION WILL BE GIVEN TO INSTALLATION OF THE FILL MATERIAL, INCLUDING THE WIRE SILT FENCE. THE CONTRACTOR SHALL ONLY INSTALL ENOUGH FILL THE FOLLOWING ITEMS.` MATERIAL OVER THE CULVERT PIPE TO ACCESS THE AREAS ON THE NORTH SIDE OF 774E CULVERT PIPE. o.SED/MENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE Wl7H 7 ONCE ENOUGH FILL MATERIAL HAS BEEN INSTALLED FOR A STREAM CROSSING WITH THE EARTH MOVING EQUIPMENT, THE THE ORGIN/A EROSION & SEDIMENT CONTROL HANDBOOK. CONTRACTOR SHALL CONTINUE TO INSTALL THE REMAINING ESC CONSTRUCTION MEASURES, AS SHOWN ON THE PHASE I EROSION & b.ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT WILL SEDIMENT CONTROL PLAN. THE MEASURES INCLUDE INSTALLING THE PERIMETER SILT FENCE AND PER/METER DIVERSION BERMS PREVENT PROPER DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT, THE GRAVEL WILL BE PERIMETER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE REMOVED AND CLEANED, OR IT WILL BE REPLACED. AC77WTY AND SHALL BE MADE FUNCT70NAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. c. ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR DETERIORATION 8. ONCE THE PERIMETER EROSION CONTROL MEASURES HAVE BEEN INSTALLED, AND THE COUNTY INSPECTOR HAS APPROVED THESE OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE REMOVED WHEN THE LEVEL MEASURES, THE CONTRACTOR MAY PROCEED WITH THE LAND CLEARING OPERAT70NS FOR THE INSTALLAT70N OF THE SEDIMENT ]RAPS OF SEDIMENT DEPOS177ON REACHED HALF WAY TO THE TOP OF THE BARRIER. AND SEDIMENT BASINS. THE CONTRACTOR SHALL BEGIN BY CLEARING THE AREAS REQUIRED TO ACCESS THE LOCATIONS OF SEDIMENT d. ALL SEEDED .AREAS WILL BE CHECKED REGULARLY TO SEE 7HAT A GOOD STAND IS BASINS 1 & 2, SEDIMENT TRAPS 1, 2, 3, & 4 AND THE AREAS DESIGNATED AND/OR APPROVED BY THE INSPECTOR FOR CUT MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED. REQUIRED FOR THE EMBANKMENT CONSTRUCRON. INSTALLA7ON OF SEDIMENT BASIN 1 SEDIMENT BASIN 2 SEDIMENT TRAP 1 2 Q IN CASE OF EMERGENCY. THE PRIMARY CONTACT FOR THE PROJECT WILL BE THE RLD OR 3 & SHALL IMMEDIATELY FOLLOW THE SELECTIVE CLEARING. SEDIMENT BASIN 2 SHALL INCLUDE THE INSTALLATION OF TWO 6' # • #4 # CONTRACTOR ON -SITE. THE CONTRACTOR AT THIS TIME IS DIGS. BROOK WOOD Wl7H DIGS MAY WALLS TO PR07ECT THE BUFFER ADJACENT TO ROUTE 29. FOLLOWING THE INSTALLATION OF THESE MEASURES THE CONTRACTOR BE REACHED AT (434) 978-4435. IN ADD177ON THE OWNER MAY BE CONTACTED. UPON SHALL INSTALL THE DIVERSIONS ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON THE PHASE I EROSION CONTROL PLAN COMPLETION OF THE PROJECT, THE OWNER WILL BE RESPONSIBLE FOR S17F MAINTENANCE. SHALL ALSO BE CONSTRUCTED AT THIS TIME. 9 ONCE ALL THE PHASE / EROSION CON7ROL 17EMS HAVE BEEN INSTALLED & ARE OPERATIONAL DRAINAGE IS PROPERLY CONVEYED TO THESE MEASURES, AND THE ESC INSPECTOR HAS GRANTED APPROVAL, THE CONTRACTOR CAN BEGIN CLEARING THE REMAINDER OF THE SITE. TEMPORARY SEEDING, PERMANENT SEEDING AND DUST CONTROL SHALL BE IMPLEMENTED AS REQUIRED. 10. AFTER CLEARING THE PROPOSED AREAS, THE CONTRACTOR CAN PROCEED TO PHASE ll OF THE EROSION & SEDIMENT CONTROL PLAN. THE CON7RACTOR SHALL BEGIN ROUGH GRADING THE SITE TO THE CONTOURS SHOWN ON THE PHASE /I EROSION & SEDIMENT CONTROL PLAN. UPON INSPECTOR APPROVAL, THE CONTRACTOR SHALL REMOVE SEDIMENT TRAP 3 AND 4. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP W/7H ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. 11. THE CONTRACTOR SHALL INSTALL ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON THEPHASE II EROSION CONTROL PLAN. TEMPORARY SEEDING, PERMANENT SEEDING AND DUST CONTROL SHALL BE IMPLEMENTED AS REQUIRED. 12. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT UNDISTURBED FOR LONGER THAN 30 DAYS PERMANENT STABIL/ZA77ON SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 13. ONCE THE S/TE /S ROUGH GRADED, THE CONTRACTOR SHALL BEGIN PHASE III OF THE EROSION & SEDIMENT CONTROL PLAN. THE CONTRACTOR CAN BEGIN INSTALLAT70N OF THE UTILITIES CURB AND GUTTER AND ROADS. INSTALL SEDIMENT TRAP 6. INLET PROTECTION SHALL ALSO INSTALLED AS THE STORM SEWER IS CONSTRUCTED. INLET PROTECTION SHALL BE INSPECTED AFTER EACH RAINFALL EVENT AND REPAIRS SHALL BE MADE AS NEEDED. IF THE STONE FILTER BECOMES CLOGGED WITH SEDIMENT SO THAT IT NO LONGER ADEQUATELY PERFORMS ITS FUNCTION, THE STONE MUST BE PULLED AWAY AND CLEANED AND/OR REPLACED. 14. THE CONTRACTOR SHALL ALSO WORK WITH THE ESC INSPECTOR ON THE TIMING OF THE REMOVAL OF SEDIMENT TRAP #2. SEDIMENT RAP #2 SHALL BE REMOVED AFTER THE STORM SEWER AND INLET PROTECTION IMMEDIATELY ABOVE IT AND BELOW ARE INSTALLED AND ARE MADE OPERATIONAL. THE CONTRACTOR SHALL FILL SEDIMENT RAP #2 AT THE SAME TIME THIS AREA IS BROUGHT UP TO FINISHED GRADE AND /S SEEDED. THE CONTRACTOR SHALL PAY SPECIAL ATTENTION TO THE SILT FENCE BENEATH THIS AREA AT THIS TIME AND ENSURE IT CONTINUES TO BE EFFECTIVE. 15. ONCE PHASE III OF CONSRUCT70N IS COMPLETE, THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR CAN THEN CONVERT SEDIMENT BASIN #2 INTO THE PROPOSED SWM FACILITY. AT THIS TIME, THE CONTRACTOR CAN REMOVE THE REMAINDER OF THE EROSION & SEDIMENT CONROL MEASURES, INCLUDING SEDIMENT RAP #6 AND INSTALL THE UNDERGROUND DETENTION FACILITY. NO ITEM SHALL BE REMOVED, THROUGHOUT ALL PHASES OF CONSTRUCTION, UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE INSPECTOR GIVES PERMISSION. 16. THE CONTRACTOR SHALL MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR /N ACCORDANCE WITH THE ORG/NIA EROSION AND SEDIMENT CONTROL HANDBOOK 17. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STAB/LIZA77ON Source: Va. DSWC OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS 07HERWISE AUTHOR/ZED BY THE LOCAL PROGRAM I ADMIN15RATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESUL77NG FROM THE DISPOSITION OF TEMPORARY MEASURES -RMANENTLY-S PREVENT ---'-" ,,"'-"-'--,, 1992 FILTER FABRIC ENTRENCHED 6' COMPACTED SOIL F T MINU M ,�. - -- LA - J I 6 NINIINM _-- -_ DD TEMPORARY 18" DIVERSION BERM 1. SET POSTS AND EXCAVATE A 4'X4" TRENCH UPSLOPE ALONG THE LINE OF POSTS TABLE 3.39-A EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. f 1 I �_ � � - - ADHESIVES USED FOR DUST CONTROL GENERAL SLOPE (3i1 OR LESS) PER ACRE TOTAL LBS i I I I _ Water Application KENTUCKY 31 FESCUE 128 LBS. I FLOW - I' llI1 Dilution Type of Rate RED TOP GRASS 2 UPS. 4 �I1GS1YSi (Adhesive: Waterl t1D�le Gallons/Acre SEASONAL NURSE CROP 20 LBS. J. ATTACH THE FILTER FABRIC TO 150 LBS THE WIRE FENCE AND EXTEND SEASONAL NURSE CROP IT INTO THE TRENCH. Anionic FEBRUARY 16 THROUGH APRIL ANNUAL RYE Asphalt Emulsion 7:1 Coarse Spray 1,200 MAY I THROUGH AUGUST 15 FOxTAIL MILLET ;,. E, ,_ AUGUST 16 THROUGH OCTOBER ANNUAL RYE Latex Emulsion 125:1 Fine Spray 235 NOVEMBER THROUGH FEBRUARY 15 WINTER RYE NOTES: 4 �� II Resin in Water 4:1 Fine Spray 300 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL � - TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 1:52. Acrylic Emulsion 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION 1/ 6 (Non -Traffic) 7:1 Coarse Spray 450 OF SEED APPLICATION, IN ACCORDANCE W/ VESCH STD 3.35. 1 Acrylic Emulsion PS PERMANENT SEEDING SCHEDULE (Traffic) 3.5:1 Coarse Spray 350 NO SCAL-. (STD. & SPEC. 3.32 OF VIRGINIA EROSION & Source: Va. DSWC SEDIMENT CONTROL HANDBOOK, 3RD ED.) 2. STAPLE WIRE FENCING TO THE POSTS. 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. ,-'I EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. sslWPHRW/RE- BACK 05-2 ,, - �. PROFILE ,r N E � 70• MIN. ONSift LTI r ASP}ULT PAvED ACCESS1 WASNRACK 11_1140I DRAINAGE •NNS- E%1'Nn �_ 0TF A TO F RC SEDIMENT 0 INGRESS ANO CG 55 Tl7APPl DEVICE 1 NC OPERATION PLt9bl - 12' WN. Plate 338-2 0 511A DItNNAL SEDIME NT WRING DENICI SECTION A -A A utinua au wales tap oil uich uu0 be uls.talled with o uirwulan 1 inch balkoct: S KI 1�0 l'a '! RI l a wA ONt w a ( N 0 heR O ad ILTIL 1 H h 4MI heat dl h Ida haul a f t u1c t 1 nl coo+tad IneNskat. \Vash waler roust be carried awal II Hie enhance to air applo%,ed.N,ddm sea to iaw%,e sedB ma All rcIhI11 Ilr TA bepieventedlioiu entemg storm Fh utis chichi, of aatacolkl � PAVED WASH RACK �3.25 1992 ROCI{ CHUCK DAM 2-10 ACRES OF DRAINAGE AREA VDOT fl COARSE AGGREGATE FLOW Source: Va. DSWC I CLASS I RIPRAP DIVERSION CHANNEL CROSSING F1DW FORMER LOCATION I I 1 DF FLOW fRARREA! [ 1 16 1 SILT FENCE / -A 1 Plate 3.20-1 Source: Va. DSWC W FLOW BARRIER (RIPRAP. SANDBAGS. PLYWOOD. JERSEY BARRIERS OR SHEET PILING) PUCE RIPRAP AT TRANSITION PL ACE J RIPRAP AT TRANSITION RAJ onGROL STRFJw- 8E0 WPROAGNING TRENCHING OPERATION DIVERSION CHANNEL CROSSING ACCEPTABLE LININGS CROSS SECTION A -A OF PLATE 3.25-1 SILT FENCE POST PORT SILT FENCE TYPE A DIVERSION POLY17MMINE 16 NIL. MIN.) OR CRASS LNER . ID N EXISTING GROUND E STING CAW D .T M TYPE B DIVERSION MP FLIER CLOTH I. EXISTNG GROUND ?'j IV EXISTING GROUND TYPE C DIVERSION RIPRAP FLIER CLOTH ROCK OR SANDBAG LINER .0 EXISTING GROUND 1/11L\ t _j.w w EXISTING CRWND I 1 • 6' MINIMUMEA OR WIDTH OF EXISTING STREAM WHCHEVER IS LESS •• ENTRENCH SILT PENCE AND FlLIER CLOTH N SAME rRENON Plate 3.25-1 Source: Adapted from VDOT Standard Sheets 3.25 Plate 3.25-2 Lic. No. 035791,E 8/04/20 �A Z Z Z z Lu Lu Lu Lu Lu � � � z O J Z Z Z Z a U U 0) o N CD N 0 N Z W v I v1 G N M O O \ Lu r, C Lu cz� 13� O� (n F. G a a a a Z In U) In In (n ce g z z 5 z 'Sal' C L g g. CL > u Lu Lu Lu (n W Ice d Lu it Lu Lu it w Go ­1 IN O\l C" N cN Q Owl . NON 7 .~-I .N-1 M l\O 0000 Z � a 0 r 7 - N c� J J ❑ S Q 00 Az N � ° a® M 11J LJ 0 s C 1 2:wx W N M 0 a N (f) W WNUP N �__0 Q N - W Q '� yN Lf. � o � � J J \ 66 z - m a C VJ o » r>_ w O W ~ a ❑ .Q 0 � J TI 0 O olf Z J Z= Q � O0 ,S U /'� V / � U 0 O I Y Z I w U Q° 5 ® O in /H�/ VJ T� Z W , 0 W WF�/ CO G W Z ll J Z LJ � I _ W DO z //1 I`__ I IIIIIIIIIIIIIIIIIIIIIIIIV_YJ O7 - 0 Of 0 O j Q ® o 0 C:)v!J C:)N O N ❑ 0/ L W 0 F, U � b U __1 ~-I I- - C 0- w V) JOB NO. m 182150 o N a TJ SCALE N/A - - . e a SHEET N0. 3 m PS A -- — N30'65'35"E 130462' k a i STS- 1 i I I I � I ,r 5.90 It IX I � r � I GRAP IC SCALE 80 0 40 80 160 ` 20� y;. 1 inch FEET 80 ft. I /%/ LEGEND LEGEND SAFETY FENCE PER VESCH 3.01 LIMITS OF LAND DISTURBANCE 5Bi - CE CONSTRUCTION ENTRANCE PER VESCH 3.02 , � / _ i `--i O 4 4 4 DIVERSION DIKE SF SUPER SILT FENCE PER VESCH 3.05 BOUNDARY LINE I INLET PROTECTION PER VESCH 3.07 ---fSILT FENCE DIRECTION OF FLOW i DIVERSION DIKE PER VESCH 3.09 / / ✓ , / DD 653.75 PROPOSED CONTOUR IN RIGHT OF WAY DIVERSION PER VESCH 3. r11 ----------- DRAINAGE DIVIDE SB SEDIMENT BASIN PER VESCH 3.14 SOILS LINE OP OUTLET PROTECTION PER VESCH 3.18 WATER WAY TS TEMPORARY SEEDING PER VESCH 3.31 p5 PERMANENT SEEDING PER VESCH 3.32 \ TREELINE CD PRESERVED SLOPES II I � � �� ��` ,r / / � /� � MANAGED SLOPES O \G o / I, , TP TREE PROTECTION TAPE PER VESCH 3.38 �OO SWM FOREST & // DC DUST CONTROL PER VESCH 3.39 � O OPEN SPACE EASEMENT r SCOTT/R. C71-5LLINS2 Lic. No. 0357911a 8/04/20OA w4 %&IONAT. H z z z Z w w w w 0 O O O u U U U Z O J up � � 7 I_ a O O O V Lu N N N Z W U) 00 00 m 0 U) � � .Ni O O H > z d d d ..ggg3 H a a a > o o a o W W W W LV�>>> W 01 O M N T V L9 qrm- 1 M J CO in. i M 1..� N O WN N ' W >_ W l� ZJ _ 06 O L9 O T� Z=� U U) W Y w U in 5 0 Z W W � J J w _ w J Q � 0 7 O O 0 N U CO F � 0- 1 Ln JOB NO. 182150 SCALE 111=80' SHEET NO. 4 a PROPOSED LIMITS OF DISTURBANCE _ P- ♦♦ .. rrr._ aura ur ■uu u■■■r■ �, -., ♦t IS CONCURRENT WITH AND DOES. PROPOSED LIMITS OF - r■uurr■ ■rr■rrr■ u�rur■ c.urr■ r■■■■r■■ _ t 5TURBANCE, TYP.' - _ 447 TW ■rroo■■■ r ♦ NOT ENCROACH INTO - 447 BW •♦♦� - ^^�,TH OF� SOIzJ vPE ♦ 30' PLANTED/REFORESTED rroro■ ■■■o■rr■ ♦. SOILTYPE ♦ BUFFER, AS SHOWN. ' PROTECiION TP W ,% 39D rp++r♦ BUFF R soon■■■y - - _ - -. -'- - ♦ 448 TIN 454 Tw CJ -I • 454 TW - ♦♦4486W 452.BW 1 44B BW ♦♦ asa rw ' �SCOTT R LLINS'Z, MANAGED -7rr/iNfRE- ---- -- -- MANAGED STEEP � 1 ,.. / �. � ♦ � BW - '-' -- -� / BACKING SF SLOPES (TYP.) • - 448 TW 454 TW '- _ C� 1,1C. NO. 035791 ,� 94 W ♦ 454 BW 16 8/04/20�� PROPOSED 18 DIVERSION. ♦ Off, 1 ________ Y SOIL BOUNDARY, CONTRACTOR SHALL ENSURE j---------___-- - ,-;` ♦ S'S IyC' ST / TYP. DO POSITIVE ISHAL SLOPE BE STABILIZEDNAS 1 --------------- BERM_ _ ♦ � ZONAL � ! O ST # 3 A FIRST STEP IN DISTURBANCE. • ' I PROPOSED LIMITS OF DISTURBANJE COINCIDES g 1.10 ac. WITH THE WESTERN PROPERTY LIE 70'BUFFER. ---- ----_____------------- THE O TREE PROTECTION, TREEL E, LIMITS OF j ♦♦♦♦. ?_ DISTURBANCE LINE AND DRAIIfGE DIVIDE ARE • 4--_---------- - - - --- ■ ALL OFFSET FOR GRAPHICAL PURPOSES. \ ■ DC • / ♦ TS � PS - -- ■ �� I _� • i i ` � m ur 40, m to ♦�� i • I z z z z 1/ p • I w w w w ♦♦ ♦ / \ m m E • I — • O O O U ! � U U U U ♦.run ■rur"orn I - - s� - -. - ■ • ��� 1 - i i ■ SOIL rvPe _ 5B2 , ■� • / 1 c� z z z ■ ■ '■■' •■ 1 PROPOSED J ■ g�,D 7 � rrrrrrrrrru�rurrrrrurrruuuruuuurrrrurururrr■■ •■ ® GREENWAY (TYP.) /A w 10 3 V 3 ■ os4■■■■rrrr■■rrrrrrrrrrrlr■ •:-,_. ■ • ■ I, ■ _ _ (A Ilo- ■ • �■ w/WIRE = N >ul Z a a a ■ I • ■ ■ - 1 ■ I BACKIN SF Z z z z PROPOSED li I • ■ � � o o n \ w w w I 'InREE TP PROTECTION - - w>I IGRENWAY (TYP.) ■ 1 > > �ceSB #2 1.58 ac. IF 00 11 3.06 ac. ♦♦' PROPOSED LIMITS OF ,� / : ♦♦♦ -y. �`"". DISTURBANCE, TYP. DC �• SOILTY^'- ' ;DCj - • W ♦+ W i ♦ • r, TS �i++++ W III w / �; - •,•,•• �; Pf7 POSED SAFETY FENCE, / ♦e♦♦1•• �♦ ••�♦••••+• INSTALL SIGNS "WARNING ~ ♦ - - ♦ • ♦ 1 I / .UICK SAND, KEEP OUT" SOIL TCYPE ♦N♦♦ ,� ♦ �♦ ♦• PROPOSED SAFETY FENCE, ' ~ Q M IN N o ■ L, i .r♦- - ♦♦♦ ♦••♦• INSTALL SIGNS "WARNING m r : ♦♦♦� ♦♦ ♦♦♦♦♦ QUICK SAND, KEEP OUT" ♦ ♦♦ ♦ f ` ■ ♦♦ ` ♦♦ PROPOSED 18" DIVERSION. �• �' - `. ■ ♦♦1♦♦♦ ® .:: ♦♦♦ CONTRACTOR SHALL ENSURE DO ♦ 00 ♦♦ •■ ♦♦ POSITIVE SLOPE IS MAINTAINED. ♦;� ♦♦ / •' ♦♦ _, BERM SHALL BE STABILIZED AS .II 'I` ♦♦♦♦♦♦♦♦ .� r♦♦♦ TS SOIL BOUNDARY, A FIRST STEP IN DISTURBANCE. ♦�� ` �� .III ♦♦ ' ■♦� \` .I ■. .. ♦• • ■ ♦♦♦ i Ar E, •+ , rrrrr i jr ■ . ♦ .♦ ♦ 000 0000 ' `� / k k t / N • ■V4Vl 00 CIO •• / ♦ ■ y... worm.■rrr 00 _ • X • TS • ■ ♦� ■ I PRESERVED STEEP ■ •• • l',k: ♦ x i //•�� r-� SLOPES TYP. ■ •♦ ♦ ■ % � �+ Z ( ) ♦♦♦♦• PROPOSED 18" DIVERSION. DC - ♦♦♦ ■ s� : '` --- \ ----- ♦ CONTRACTOR SHALL ENSURE ♦ ■ ■ - -- N —I ♦ ♦• POSITIVE SLOPE IS MAINTAINED. ♦ ■ p, ♦♦♦. DD BERM SHALL BE STABILIZED ASI' ♦1♦ • POTENTIAL LOCATION FOR ESC PHASE I EXCAVATION. ■ ' N ♦♦• A FIRST STEP IN DISTURBANCE. .♦♦♦♦ _:` FINAL GRADES IN THIS VICINITY ARE APPROXIMATELY j �„" Q J 10'-18' BELOW EXISTING GROUND. ESC PHASE I r \ O ., ♦♦♦00 rrrrr+•• EXCAVATION CAN BE UTILIZED FOR FILL DURING THE " i * �•♦ --.- rr•+++ '■ CONSTRUCTION OF ESC FACILITIES. EXCAVATION SHALL '' ■ , k/ % ., ♦♦ - rrr+r ■' ONLY OCCUR AFTER INITIAL ESC MEASURES ARE L. ■ `/ ' w r—I r e u■uu■ ®rr*+••r•♦I •• +r+r•rrrrrrrrr DC INSTALLED & AFTER THE APPESC VAL.INSPECTOR HAS GRANTED ,I ■ / J O - 0000 ♦ - - ♦ ' • ��' -- /� GRAPHIC SCALE U) u ♦ro * I _ uj ♦♦♦♦ �� * _ ■ ` _ - - / 30 0 15 .. 30 60 , 120 L. O PROPOSED ♦♦♦♦ - I„ ■ '# PROPOSED -/ _ _ L9 TI w GREENWAY, TYP. ♦♦♦ ■, i GREENWAY (TYP.) - - ,� t —'��: ( W FEET 010 d II :. I I x 'et' Ekx .k. eet x t k��/ 1 1RC11-='�j0 ft. �� Q �_ ■ 000 ' ■ PROPOSED' SWIM FOREST & OPEN /� k < k < E. . ` k °j = - / �� LLJ - - WI III EASEMENT (TYPICAL) ' / U Ln _■ _ ■ PROPOSED 18' DIVERSION. IF _ r SPACE E I e _ t , //•�� ,,x W ■ DO P05ITIVE�SLOPE IS MAINTAINED CTOR SHALL ENSURE, ® ■ / t. _ " .r x, r J>/ �� 1 V / W • ■ r% ■ • PROPOSED WALL. A DIVERSION SHALL m - E STABILIZED A - � BERM SHALL BSTABILZS • ; • - I I BE INSTALLED UPHILL OF THE WALL TO 1 ■ LIT a A FIRST STEP IN DISTURBANCE. ` TP - DIVERT RUNOFF TO SEDIMENT BASIN 1 W O ■ Z 1 TREE • s, ., PROTECTION +.. / ■� I� � � • / ul Cn ! • 1 r w ■ ♦ a / 1 PROPOSED STOCKPILE ♦ 1 r ■ M tt SURROUNDED BY r 1 r • XW w ■ . . w lot SILT FENCE ♦ r m W w 1t / i PROOTEOCTION SED FENCING SHALL BE PLACED ON THE \ ' ILIMITS OF DISTURBANCE. THE TREE` W W J�( i ® a I ,' LIMIT OF DISTURBANCE LINE, WITH THE. SILT ` • I -FENCE INSTALLED IMMEDIATELY ADJACENT TO ',r J U) �PE 1 I� THE TREE PROTECTION FENCING. THE r m _ (n SOIL TYPE - i l ti 1 ! 2 B • I DIVERSION, DRAINAGE DIVIDE, SILT FENCE, TREE I 7 • I c ST#4 � I =�- PROTECTION LINE LIMITS OF DISTURBANCE AND r. ST • 'I TREELINE ARE ALL OFFSET FOR GRAPHICAL ' Q �� J = 1.28 ac. oc i , 1 _ w ^^�� ♦ PURPOSES.. I , ♦1 ST # 2 / ♦ SF WIRE I r PROPOSED �* 2.52 � PROPOSED 16 DIVERSION. / BACKING r �. ♦♦♦ Z . S 2 a c. i - ' GREENWAY (TYP.) ♦ CONTRACTOR SHALL ENSURE Dp 9 POSITIVE SLOPE IS MAINTAINED. I �<II�� O ♦♦'\ • BERM SHALL BE STABILIZED AS rrrrrrrrrrrrrsss■■-ror•.r ♦ �i : A FIRST STEP IN DISTURBANCE. i it '_ _ \\ CD O O y • 1 \y I PROPOSED RIPRAP / N DC W/ WIRE SF ?= LINED OUTLET it r BACKIN Mw PROTECTION.. SEE / -■ TS / EXISTING ,r '� SWIM PLAN SHEETS M ! ! I VEGETATION i /' L _ �_ FOR DETAILS / ■ ■ 1 r I( a N 0 ♦♦♦♦•♦• TS �, I JOB NO. ♦♦ f EROSION & SEDIMENT CONTROL NOTES / 182150 ♦�♦ i. THE LIMITS OF DISTURBANCE SHALL NOT ENCROACH INTO "- i ®♦ ♦♦♦ THE WESTERN PROPERTY LIMIT'S 70' BUFFER, AS SHOWN. / "F SCALE 0 ♦♦ 2. THE PROPOSED SWIM FOREST& OPEN SPACE EASEMENT 111=30' ♦♦♦ SHALL BE FIELD SURVEYED AND ENCOMPASSED WITH �A �1 _ - ♦♦♦ { ORANGE PLASTIC SAFETY FENCE. SHEET NO. ♦ ♦ MATCHLINE, SEE SHEET 6 ♦ 3. NO CONSTRUCTION TRAFFIC SHALL ACCESS THE y ♦■IIAll�ll��11111111�11�11�11�11�11�11�11�11�11�11� �� EST LAKES. / - - - --- 5 PROPERTY FROM MONTGOMERY RIDGE OR FOR I ♦ ♦ , , � ry c I PROPOSED GREENWAY (TYP.) I IKAllbiI WIN i �����,�� ••�� ,' /// RR ,, , • ♦ / �. ` ••• •� •'• MATCHLINE, SEE SHEET 5 �♦ ; �'��! i •D 5IlNIJIMI P411INIINIIINIINIIN11011IN11011IN11011INIINIIN w \ /' III ♦ - PROPOSED 18 DIVERSION. � CT ^�L �♦ �� _ _ '� CONTRACTOR SHALL ENSURE J I -I v Y ,� • DO POSITIVE SLOPE IS MAINTAINED. 2. 52 ac. ♦♦♦ I`� -y , ■ BERM SHALL BE STABILIZED AS A FIRST STEP IN DISTURBANCE. ♦♦` I\ i -_ - ♦ \ I. IF /.// ■ ■ r ■ �� PROPOSED SAFETY FENCE, / ■ ♦ -. _ , /I INSTALL SIGNS "WARNING � QUICK SAND, KEEP OUT' r / SCOTT/R.ICI!�-LLINS- Lic. No. 035791 p 3/12/2002, �� Ilk -xvS'IOrrei. E�G� - ------ PROPOSED SWM FOREST & OPEN ' g i♦%, SPACE EASEMENT (TYPICAL) / O O PROPOSED LIMITS OF i p STz ♦ ,' u O O / i Z \ DISTURBANCE, TYP• i � Y O <. ♦ .-DC � ' ' - , O PROPOSED LIMITS OF DISTURBANCE COINCIDES / U �' ♦♦ ,' ® WITH SEDIMENT BASIN #1's PARALLELING SILT m N N / ♦ , FENCE. THE TREE PROTECTION, TREELINE, LIMITS Z wQ N �\ - ,' ♦♦ , OF. DISTURBANCE LINE AND DRAINAGE DIVIDEGo 00 ^� ti ♦♦ ,' ARE ALL OFFSET FOR GRAPHICALLY PURPOSES. O z0 Q NID 1♦ , ,' ,' H w w w \\ \ j♦♦�40, TP TREE i ~ w z z (f) Ln '' , - / ♦ ♦♦ /� PROTECTION. Q Q j g / PROPOSED SWM FOREST.& OPEN— / pf 0.14 aci ♦ - /� / �� A - 0 O SPACE EASEMENT (TYPICAL) i N / ♦ PROPOSED / /. t t r . - , U) U) / p ♦ < . > GREENWAY TYP. E \ TYPE . ♦ say rr ♦ � !' � / � t � � Lu • a Ice , r a pad .♦ � k � ' SOILTYPE,� r PROPOSED 18 DIVERSION.♦♦ /T♦1♦ r , . "� ,� '.- j �'� TP TREE// CONTRACTOR SHALL ENSURE ♦ I , // / I PROTECTION r `® DD BERMOSITIVE SHALOBE STABILIZED PE IS AS ••♦ 1♦♦ 0%00 ' AFIRST STEP IN DISTURBANCE. .♦,� ♦ yt ® \*l�. i I/ ry rn w/ WIRE 00 F /�' ® "� DC I ♦'••♦♦1 / ♦♦♦♦ CONTRACTOR 1 SHALL DIVERSION. ��' / I \ BACKING / 1a ♦ DO / - . i i / ./oil - J\ / aaa ♦♦ POSITIVE SLOPE IS MAINTAINED. , .� ,� �j ,/- 00 ® a1a ♦ BERM SHALL BE STABILIZED AS /� I � / i '� , ••aw♦ A FIRST STEP IN DISTURBANCE. / s /! p ® i �4p / PRESERVED STEEP ®41, ode 0000 / � ♦ SOIL BOUNDARY `PROJECT LIMITS i' I' ! TYP. (TYP:, • 5.90 ac. / - - 1 EXISTING 1 j100,/. ® II , " I VEGETATION ♦♦ /- y® /40, PROPOSED LIMITS OF DISTURBANCE COINCIDES — WITH THE TREE PROTECTION. THE SILT. FENCE, i )' �! ♦♦ /� - ;� - II / ./ _ "/' TREELINE, LIMITS OF DISTURBANCE LINE, /� s -' f ♦ / DIVERSION AND DRAINAGE DIVIDE ARE ALL #♦ OFFSET FOR GRAPHICALLY PURPOSES. _ /, /.I t ♦♦ /, _ Ar /// - ' / , 40, p / PROPOSED /' ••♦ i ��_ PROPOSED I L , ® t , � GREENWAY (TYP'.) , I 34 GREENWAY(TYP.)- , , tf ♦♦ / �� /.' / / 40, 41 j' i TP / /''�� .TREE 0 f ♦ �'- ,�, PROTECT -ION 000 4000 I II PROPOSED 18" DIVERSION. II CONTRACTOR SHALL ENSURE: j DO POSITIVE SLOPE IS MAINTAINED. BERM SHALL BE STABILIZED AS / II A FIRST STEP IN DISTURBANCE. , W/ WIRE .�� SOILTYPE ♦ /� SF BACKING - e 41 41 Y PROPOSED LIMITS OF DISTURBANCE, TYP.. , Y 00 b 0 PROPOSED LIMITS OF DISTURBANCE 0 ® , , COINCIDES WITH THE TREE PROTECTION. - - - ,� % ,� ` s 00 THE SILT FENCE,TREELINE, LIMITS OF / / ♦ / DISTURBANCE LINE, DIVERSION AND ♦ DRAINAGE DIVIDE ARE ALL OFFSET FOR - e GRAPHIC 'GRAPHICALLY PURPOSES.�',� / �" GRAPHIC SCALE z _- I- ` ♦ ! LIMITS OF DISTURBANCE ARE A MINIMUM / _ _ , , �'r/ / / / ♦ FROM THE PRESERVED SLO MATCHL 30 0 is 30 60 120 DC ♦ INE, SEESHEET 7 ` SOILTY0E , ,� 41 s,.. 34C / ; ' ( IN FEET ) 1 inch = 30 ft. Q C'7 s z�� ° CM 3 �F 0 V v� O O Q N Lf Z 0 W N ° J N W> _ O o L1J T -I LL - Z za J z s J > C6 o Cn U L IJ O H ~ rl w 3 Z = LL U (� 06 W Lu U0 I ^ c LIl o U1 O ° � J 0 o Lu Lu — z Z W w W Ln z J az c J = z i--i JW = ° J ti Q C� O 0 C:) J C� x CN LL U m W O J O ~ ~ y w w E w u 0 S o a c) JOB NO. 182150 ° SCALE ° 1 "=30' ° ° c 0 SHEET NO. a 6 'i / I: STREAM, (( GRAP C SCALE M� TYP. gp p ( PROPOSED FLOW BARRIER (SANDBAGS, _ I 30 ,0� Y � 12 I I RS OR EQUIVPLYWOOALENT). SEY BE1 ■ )• SEE SHEET 3FOR � PROPOSED RIPRAP ADDTTIONALCROSSING RR DETAILS. AT TRANSITION : ■■■ IIII. ( IN FEET) «; ■ ' i I 1 inch = 30 ft. r CONTRACTOR SHALL REMOVE ' PROPOSED FLOW BARRIER & STREAM ■ , _ DIVERSION ONLY AFTER THE CULVERT RR EXISTING r INSTALLATION HAS BEEN COMPLETED, ■ - VEGETATION ACCEPTED BY VDOT AND THE ESC (TYP.) INSPECTOR GRANTS APPROVAL. ■ PROPOSED i ( GREENWAY TYP.) ---� i -- - PRESERV D STEEP , SLOP S (TYP.) ■ _ TREE PROTECTION TP ■ I— '� w/ WIRE � ■ r � BACKING SF , : r m Ln PROPOSED LIMITS OF -�' • r ■ Lu I TH 0 Q C SCOTT R. INS' U Lic. No. 035791 !� �o 8/04/20` IONAL z w w z 0 z w z J J C) U 0 ~ Z Z Z z c Lu w w w LOCATION OF - i DISTURBANCE TYP.. s ` ■ z 0 0 0 - LGTA-!'0 jiLo !. _ t �r W O Lu PROPOS ONSTR CTI N CE ENTRANCE (12'z70 / WA H PROPOSED ALIGNMENT OF/ _ g � RACK &DOWN GRADIENT DIVER R -�■■ % / ' STREAM DIVERSION ON WHILE USC %. I ¢ W - __T_ ! & SEDIMENT TRAPPING DEVICE /� / CULVERT IS INSTALLED ♦• ■ L�L PCs • \�\` ` ♦♦♦♦ � i IFman ■■■mama■ -- ■-■-■■-■a SOIL TYP ■ uaum■ ■au i..,. 1 ( E CRS� 11 n PROPOSEDST4 CONTRACTOR PARKING & - STAGINGAREAI� ■ �� ■ --_ CONTRACTOR SHALL INSTA L A ■ R/W DIVERSION ACROSS THE WD CONSTRUCTION ENTRdIYCE. ' ♦ DC 0 J Z Z Z Z m 7 7 I_ k Q 0 O O m CD CD ON m ZLO W i Z �,��o O OQ N �D 00 s K w H ~ d a d a z / A W In m U) c v, g g z z s u n ■—■ d d d N w C w w w a >w I I I Lu `o U 0 0 c --- SOIL BOUNDARY,�I TYP. ■ 1 , 00 m 0 O O O U _ ■ , CULVERT INSTALLATION NOTES: 0 r1i M o kD co LOCATION OF 15[y }_.., DUMPSTER -- _ LOCATION OF -�- TS ■ 1. CONTRACTOR SHALL INSTALL AND MAINTAIN A O WIDE WITH 2:1 SIDE SLOPES ° FUELING AREA ■ ',TYPE B STREAM FLOW DIVERSION PER DIVERSION CHANNEL CROSSING VESCH a %� ■.. \ DETAIL 3.25-1 AND 3.25-2 DURING ENTIRE CULVERT CONSTRUCTION' OPERATION. E PROPOSED CONC. PROJECT LIMITS - DD ,i 2. SILT FENCE SHALL BE INSTALLED ON BOTH SIDES OF THE PROPOSED STREAM = P. a DIVERSION CHANNEL. THE CONTRACTOR SHALL INSTALL AND ADJUST SILT (TYP.) (' 'tiA+WM M M S Sh, 1 WASHOUT AREA ( ) ��K`�5, o w/ WIRE \yam"` 1 PROPOSED ' FENCE AS NECESSARY TO PREVENT SOIL FROM ENTERING STREAM. RIPRAP c _ SF RIPRAP AT �/ SHALL BE PROVIDED WITHIN THE EXISTING STREAM BED AT THE TRANSITION BACKING ,r \ FROM THE EXISTING STREAMBED TO THE PROPOSED DIVERSION CHANNEL, AND ® ♦♦TRANSITION , AT THE TRANSITION BACK FROM THE DIVERSION CHANNEL TO THE EXISTING SOIL TYPE ',.a RR i �� STREAMBED. AN APPROVED FLOW BARRIER (SANDBAGS, PLYWOOD, JERSEY THE FUELING TANK SHALL BE COMPLETELY SURROUNDED BY 2' 27C BARRIER, OR EQUIVALENT) WILL BE INSTALLED BEHIND THE RIPRAP TRANSITION. DEEP, 2' WIDE EARTHEN BERM WITH A HEAVY MIL POLYETHYLENE 3. THE DIVERSION CHANNEL CROSSING MUST BE OPERATIONAL BEFORE WORK IS ° LINING, OR BE PLACED IN AN IMPERVIOUS OPEN -TOP DUMPSTER.+ a ir' 1 PERFORMED IN THE STREAM (CONSTRUCTION OF DIVERSION SHALL BE M J E THE PROPOSED BERM OR DUMPSTER SHALL CONTAIN FUEL IN THE PERFORMED "IN THE DRY"). Cy EVENT OF A SPILL.. CONTRACTOR SHALL ENSURE VOLUME CAPACITY ♦ / I 4. UPON COMPLETION OF THE CULVERT CONSTRUCTION AND WITH INSPECTOR ° IS 10% LARGER THAN THE MAXIMUM VOLUME OF STORED FUEL. - j J \. +' ,� 'i, - II APPROVAL, THE CONTRACTOR SHALL REMOVE THE STREAM DIVERSION AND N o r ALLOW STREAM FLOW TO RESUME THROUGH THE CULVERT. o I s ¢Y ♦ r /' WORK IN THE STREAM COVERED UNDER VIRGINIA WATER PROTECTION (VWP) (C 3 ST5 j INDIVIDUAL PERMIT NUMBER 16-1133 FOR THE BROOKHILL PROJECT. ° ST # 5 ° 2.42 ac. ` ♦ oc i ' SOILTYPE ♦ rr - I N w , r III■II■II■II■11�11�11�11�14■II�II■Illll�ll�ll�ll�lif v , > ♦♦ - r 34C' MATCHLINE, / Q o ♦I SEE SHEET 6 (V J ° N � ♦ - ♦♦, / ' I \ ♦ ♦ oft name wl SOIL TYPE / < Lu t J ° ♦ 1♦ ♦♦♦ I ♦ �'r' SOIL BOUNDARY,�� /'� tFe,ek 1. J N ♦ ♦1 �. ♦ OP,, \\ TYP. /E O ° Cz SEDIMENT TRAP #4 TO BE UTILIZED FOR ■♦1♦, ♦♦ ■♦♦♦•♦ F , a♦ \\ \\ / ✓ ` ✓ % 'rift U) V 0 CONSTRUCTION ENTRANCE WASHOFF / RUNOFF. r • j' TS. , r ` - r ° L9p ♦ be / ' it ' PROPOSED 18" DIVERSION..._ � � ` r 7i /� T � ♦ CONTRACTOR SHALL ENSURE ♦ r / . \� \�� _ _ r w ' v , ♦ POSITIVE SLOPE IS MAINTAINED. DD ♦♦ r i - \ i'.>L �.I■I ■.ICI.■■I III■ �' "1�1f r� - = u r / PROPOSED LIMITS OF DISTURBANCE COINCIDES ` ♦♦ BERM SHALL BE STABILIZED AS i - - '� �� /� ' - PROJECT '/ / - WITH SEDIMENT BASIN #I''s-PARALLELINGTREE + ® r / - - ` - r MATCHLINE/ u - U ° BOUNDARY A FIRST STEP IN DISTURBANCE: ♦ r w t CF (n �( PROTECTION. THE TREE PROTECTION, TREELIKE, ♦ r l - \ % ` r I SEE THIS SHEET I .PROPOSED I v , Cz (TYP') SILT FENCE, LIMITS OF DISTURBANCE LINE AND ♦ % a/ o GREEN WAY (TYP. ' - DRAINAGE DIVIDE ARE ALL OFFSET FOR GRAPHICALLY//PURPOSES. O Lu U 1 PRESERVED STEEP �.\ SLOPES (TYP.) - -- i ' I rr I r /✓ D O O E . PROPOSED r ♦♦ ,' - - EXISTING I ` t i ti I Lu c7 r I GRE NWAY (TYP.) ® I .VEGETATION \, / ' r ! Lu M — i •Lijw W � Z 0, ■ % TREE i Q W _ ♦ I PROTECTION r ol. OI = 0 I 1 ■ _ �� r r � I I ♦.• i / J r I PROPOSE � �!QII�'1V m r I D LIMITS OF �(♦♦♦♦ '� O > J / - -/ ..o '�ap■d '� / PROPOSED SAFETY FENCE, DISTURBANCE, TYP. ♦■a■a p - INSTALL SIGNS WARNING ' I - p I PROPOSED .;/ � O � 4f - �� QUYCK,SAND, KEEP-0WT" _ l ,�, I JJI OUTFACE, SEE `�� bWM SHEETS F0 ■ r J I fI DETAILS / J ,PROPOSED SWIM FOREST &OPEN TP ,, �^ ' SPACE EASEMENT (TYPICAL) / ,' , )� TREE ti ' I - w F- E PROTECTION (\ 0 w °' JOB NO. b / / 1 182150 \ / GRAPPr4IC SCALE I = o F I T/ SCALE 30 0 is �30 60 120 d j EXISTING- i n \ / • \ \\ �. ,r \ l I STREAM i 1 =30 ° MATCHLINE, f �� SE, IN FEET U II■III z,' , 1 inch - 30 ft. / SHEET NO. n 1 ! III■III �� = i LI■11111f11�11■ j �/ PROPOSED LIMITS. OF DISTURBANCE ', �♦ TW _ _ :;",c`- V PROPQSED LIMITS OF _- - 436 - - IS CONCURRENT WITH AND DOE5 DISTURBANCE, TYP. - - - - - •♦♦ - 436 BW NOT ENCROACH. INTO THE 70 WIDE ■446 TW 446 TW _. 446 TW t♦♦ - .TREE _ ', 44T TW' -... _♦� TH �F 442 EG 446 TW 1442 BW 444 BW 445 BW ♦ - 'PROTECTION Tp ,.. - 447 BW ' � � '. ♦♦. ✓ BUFFER, AS SHOWN 441 TW 440 BW 446 TWi 42 EG 444 EG 445 EG : - - . - 435 BW 435 EG 442 BW� : - ♦ - 460 BW -.452 BW 450 W, 4454 TW 44 BW'. l _ ♦♦.:W 454 TW 460 TW -- 452 BW ..... "-. 454 I ------ - 442.7W ♦ 450 BW o'SCOTT R. LINS'z -- r ----- 42 BW � � 454 TW BACKING SF 6 gV,/ 446 TW � 0.18ac. ..I • '--- U LiN 035791 � ,�♦ " 454 BW ♦ - ■ /0 446 TW 446 TW • - _m � 443 BW � j �-------------- • '0 8/04 2 ---------------- — ill ■ ■ a7o TW TW=462 BW=46D ------ ----- — ♦♦ ♦ W � �SSrDNAL E��1 ----------- 0.14ac. ■ 466 TW 468 TW 464 BW ------ -- __ _ ♦ LLW 462 TW 464 TW 464 BW 464 BW ---- -- - + Z = 462 TW ■ ♦♦♦ 460 ■ 464 BW PROPOSED LIMITS OF DISTURBANCE COINCIDES -' - - - -- _ ti � 442 TW 460 BW 462 BW 466 TW 462 TW 442 BW � ♦♦ I 460 � WITH THE WESTERN PROPERTY LINE 70' BUFFER. 462 TW 464 TW - -- = In � 1 , ■ ■ THE TREE PROTECTION, TREELINE, LIMITS OF 460 BW 468 TW 462 BW 462 BW 462 BW ♦ • DISTURBANCE LINE AND DRAINAGE DIVIDE ARE 40 462 BW; _ _ _ ~ I� _ ♦ ■ ■ \y 1 43 IN ■ ALL OFFSET FOR GRAPHICAL PURPOSES. 464 6W \ PROPOSED WALL (TYP.) - ■ W DC ■ — PS / ■ � PROPOSED WALL (TYP.) TS � � ■ � 'V ■ mom am ■ ■ ' PROPOSED WALL (TYP.) : PROPOSED WALL (TYP.) a ,��H H H ♦ ■ PROPOSED WALL�YYP.) ♦ -Lu ■ PROPO EDWALL (TYP.) i PROPOSED WA _ TW in \ i '♦ * O ■ 438 BW - - ♦ GREENWAY (TYP.) a O O O O 444 TW ■ , SBz ♦ PROPOSED H Q O > > 4 BW> ■ ■ —_ _ Ln m ti N N IN CD O I ■ ■ • / W N Dl q ■ ■ _ -_ — Q N l0 OJ ■ ■ I�- - - O w i ■ R - - ♦ CKIN �— VH / U� Z ZWa' Waa' W • w/ WIR S>z a a JT #1 BAOC Z I2 0 1.93 ac. PROPOSED TREE ♦ M M GREENWAY (TYP.) ■ TP ■ ♦ 1 W W w w w PROTECTION ■ ♦ _ > a52Bw TS : SB #2 ■ 4.31ac. ■ SEDIMENT TRAP #1 SHALL REMAIN FUNCTIONAL AS ■ _i 444 TW i PROPOSED LIMITS OF LONG AS POSSIBLE, AS DESIGNED & SHOWN. •i / 1 438 BW DISTURBANCE, TYP. SEDIMENT TRAP #1 SHALL NOT BE REMOVED UNTIL li THE UPLAND STORM SEWER & YARD DRAINS ARE DC� I I ■ I 445 TW 439 BW ■ PROPOSED SAFETY FENCE, 439 EG • INSTALL SIGNS"WARNING • QUICK SAND, KEEP OUT" A ■ 452 TIN w -i i -.i 4478W 9� 11 N � i I ii 445 TW ■ ■ 439 BW �■ 439 EG 448 TW 446 BW I ♦ I' 444 TW 436 BW 438 EG ♦♦♦ 442 TW 447 TW 436 BW 444 BW ♦♦ ♦♦ 436 EG I \ ♦♦♦♦ 440 TW are** 434 BW 447 TW - 434 EG i 444 BW I 438 TW 434 BW -' 434 EG 4 47 TW I 446 BW, i 434 TW 434 BW 434 EG PROPOSED EENWAY, TYP. STi OPERATIONAL & CONVEY RUNOFF TO SEDIMENT BASIN #2. ST #1 SHALL NOT BE REMOVED UNTIL THE ESC INSPECTOR APPROVES. ITS REMOVAL. �\ VE SLOPE IS MAINTAINED. SHALL BE STABILIZED AS 7-7 N DISTURBANCE. ST #2 2.91 ac. tea.■■■1■■■■■■■... I 1 / ♦O MATCHLI E, SFj�4SH T 9 �11�11�11111�II�II�II�dlN 1511N1 Ilrlli�ll�ll�ll �.40 TS TS ��♦ W \ \ \ 1♦ PROPOSED SAFETY FENCE, a 0) -.♦♦♦ -INSTALL SIGNS "WARNING 0 N M QUICK SAND, KEEP OUT" '00 00 '�.............. /.. L9 0? CO^E 1..� CO 04 M STREAMj Cy i V ♦� / ... - O o • T�41. ♦ t a yy �ti ♦ —`/ / � LLl i TW�4 48 �. a / J O , / C6 • I BW=447 �� / /— GRAPHIC SCALE � V O■ ® ,.�� -_ 30 0 15: 30 80 120 WZ PROPOSED - �� __ - O T.I W i GREENWAY (TYP.) IN FEET J i TW=448, ), aW=44 1 lIIOh f, Q PROPOSED SWM FOREST &OPEN = 30 t.' �� 00 ®� ■ ( e ■ ✓ SPACE EASEMENT (TYPICAL) t t -. i ,\,,' - i' ., U n ` — CAS ■ PROPOSED WALL. A DIVERSION SHALL i - BE INSTALLED UPHILL OF THE WALL TO O ■ T -DIVERT RUNOFF TO SEDIMENT BASIN 1. .TREE i / / r - _ _ Lu ■ I PROTECTION + :n ■ TW=450 / / '� O Q� I, BW=446 I ul j W ■ ! m ' W M — • — 1 " PROPOSED LIMITS OF DISTURBANCE. THE TREE • V1 W W 'y,_ _ _ Ui W W • PROTECTION FENCING SHALL BE PLACED ON THE i 1LL � . -- LIMIT OF DISTURBANCE LINE, WITH THE. SILT \ ■ Z = �� - Q ♦♦ , FENCE INSTALLED IMMEDIATELY ADJACENT TO J J_ ♦♦. `® THE TREE PROTECTION FENCING. THE I ■ 2 �I ` ♦♦ A DIVERSION, DRAINAGE DIVIDE, SILT FENCE, TREE I _ _� ♦ �� PROTECTION LINE, LIMITS OF DISTURBANCE, AND Q m ♦ ® TREELINE ARE ALL OFFSET FOR GRAPHICAL I i `� - J W ♦ SF w/ WIRE PURPOSES.. BACKING ♦ II �' PROPOSED `� Q GREENWAY (TYP.) = �\ f Il O i %• N LL • EXISTING w/ WIR S II / VEGETATION i BA IN F W W II (TYP,) I U O w JOB N0. 182150 H i � SCALE 1 "=30' / SHEET NO. 8 - • ' i / a s / 1 i' tl •lll�lllll�lllll�lllll�lllll�llll 0I11 `�001illllll ♦MATCHLINE, / ♦,♦♦ SEE SHEET 8 �♦ �� v ♦♦♦♦ 0.21 ac. ♦ mm \ ♦ ♦ m i � \ g ♦ mmm .00 PROPOSED SAFETY FENCE, ■ mm yam`'`, q6'� - // ,(. i / INSTALL SIGNS "WARNING 00,• - ♦ • ` / } QUICK SAND, KEEP OUT" �� ®' ♦1♦♦ mns♦ 4e� / i / � ♦♦♦♦ mmm � �_ � r j/ / r � ♦♦♦♦ mm � � / r r ♦♦ 3' PROPOSED SWM FOREST.& OPEN r / r ♦♦♦♦♦ m♦®1`� O� SPACE EASEMENT (TYPICAL) , V� PROPOSED LIMITS OF r ♦ - - � )COTT/R. Cl!�LLINS7 Lie. No. 035791 111 3/12/20�� / \ DISTURBANCE, TYP.. \ r / 1♦ , t i Z ' PROPOSED \i i m♦1 DC mm j ,� O ' GREENWAY(TYP.) _ i r �/ 1♦Im mJ - .'-_� I .. I: , Q ♦♦ - - ♦ PROPOSEDLIMITS OF DISTURBANCE COINCIDES. �� ♦ - ,' �' WITH SEDIMENT BASIN #I's PARALLELING SILT - u z / ,�' ♦ • •. i co FENCE. THE TREE PROTECTION, TREELINE, LIMITS / i ♦ • " ♦' i OF DISTURBANCE' LINE AND DRAINAGE DIVIDE 0 Ln / ' m♦1♦ !' ARE ALL OFFSET FOR GRAPHICALLY PURPOSES.. - _ ) / `� 0 Q TREE / ` t V' w r i �A* ■ / ♦ ♦6® ,' PROTECTION r ♦ /♦♦ ♦o®40,/ / H PROPOSED SWM FOREST & OPEN i u'® 0.0 ac. ♦ e ` ' 'SPACE EASEMENT (TYPICAL) 'i r ♦♦♦ p♦ 4* PROPOSED t \\\ . / ' # .4 GREENWAY (TYP.) ' a W kCd° , \ i r � • mmm a // / � � � � .49 •♦■.■r• y� _ 40, TP F 1 ' .TREE // '� 1♦♦ ! i � i _,�:"� i � 4100 i PROTECTION. , / ♦ 4 r� 1 s ' i °� °� o 0 Lu b 00 I N O .✓ /' I w/ WIRE'(G�� i' �7 : _ %n��♦ n S - ,' �' PROJECT LIMITS - / ' / .♦♦ ' �4 /Jl1 / \/ (IYP.) �./ ,♦ ♦♦ ' ,` !� _ I `EXISTING / VEGETATION i - / � ♦ DC PS 40, PROPOSED LIMITS OF DISTURBANCE COINCIDES �' '® ♦♦ ,' - r _ r' / / WITH THE TREE PROTECTION. THE SILT FENCE, �' '� 1♦ ♦ ,' ,� / / O / '® TREELINE, LIMITS OF DISTURBANCE LINE, /,' ®♦,• ♦.♦ /,� ®. / ' DIVERSION AND DRAINAGE DIVIDE ARE ALL OFFSET FOR GRAPHICALLY PURPOSES. � ♦1 • ♦•♦ ,' - / / ' ' O ♦ } ,'`. PROPOSED i PROPOSED i ® �1 ,• i gr GREENWAY (TYP.) )/ / GREENWAY (TYP.) i k ♦ .♦ / _ \ y % 00 / I 41* 00 s ♦ m / - s00I� 40 S B # 1 m•'# TP / i TREE y / i /r t i ■ 5.26 ac. .♦ '� PROTECTION I R ■ TSAt ♦ Fi r ■ : / /" / r ■ � r r i r ♦ W/WIRE \ r ■ �♦ ,i SF BACKING. It 40, i PROPOSED LIMITS OF--� DISTURBANCE,TYP. /\ TS \ 12 ♦♦ / / , 'f 00 ♦ t , PROPOSED LIMITS OF DISTURBANCE �!/ ; / 00 00 0* i COINCIDES WITH THE TREE PROTECTON. ♦ i THE SILT FENCE, TREELINE; LIMITS OF DISTURBANCE LINE, DIVERSION AND !< ', DRAINAGE. DIVIDE ARE ALL OFFSET FOR ' ! GRAPHICALLY PURPOSES. / I GRAPHIC SCALE ! LIMITS OF DISTURBANCE ARE A MINIMUM / �' / ! OF 5' FROM THE PRESERVED 30 o is ao 6o izo / III loll Ell loll Ell loll Ell loll Ell loll Ell IoIIffil milmIImIImIIA i MATCHLINE, SEE SHEET 10 / ( IN FEET ) 1 inch = 30 ft. 0 z ul z M M O N M N O O Ld N J J U) H 0 LL U W U) W W (D O O N i—I 9 J i O O 0M UW u a f a JOB NO. 182150 SCALE 1 11 0' SHEET NO. 9 30 1.. I.' I x I ' i T If I I I I r �I I I I � I I,q , LOCATION OF PROPOSED LIMITS OF PORTA-POTTIE /' DISTURBAN TYP. III PROPOS ONSTR CTI N CE ENTRANCE (12k70 - / WA H •�rRACK DIVER & EDIMEN TTRAPPING DEVICE CRS PROPOSED CONTRACTOR .- S- PARKING STAGING AREA LOCATION OF 15cy DUMPSTER --- _ LOCATION OF FUELING AREA \ PROPOSED CONC. PROJECT LIMITS WASHOUT AREA (TYP.) THE FUELING TANK. SHALL BE COMPLETELY SURROUNDED BY A 2' DEEP, 2' WIDE EARTHEN BERM WITH A HEAVY MIL POLYETHYLENE LINING, OR BE PLACED IN AN IMPERVIOUS OPEN -TOP DUMPSTER. THE PROPOSED BERM OR DUMPSTER SHALL CONTAIN FUEL IN THE EVENT OF A SPILL. CONTRACTOR SHALL ENSURE VOLUME CAPACITY IS 10% LARGER THAN THE MAXIMUM VOLUME OF STORED FUEL. SEDIMENT TRAP #4 TO BE UTILIZED FOR CONSTRUCTION ENTRANCE WASHOFF/RUNOFF. SCALE ( IN/ FEET ) 1 inchL= 30 ft. II 1 I I. q 1 1 1 I IW 120 /\ 1 / - J EXISTING , / VEGETATION (TYP.) � PROPOSED GREENWAY (TYP.)---� PRESERV D STEEP / sLOPs(TYP:) TREE PROTECTION TP w/ WIRE / BACKING SF , ST #4 1.02 ac. .CONTRACTOR SHALL INSTALL A R/W DIVERSION ACROSS THE WO CONSTRUCTION ENTRANCE. PRESERVED STEEP SLOPES (TYP.) TS 0 STREAM, --_---- /� TYP. 434 TW 434 BW may' 434 EG F —. AS ROADWAY IS BROUGHT TO GRADE, CROWN TOWARD EMBANKMENT TOP OF BANK TO ALLOW SILT FENCE TO TREAT THIS AREA UNTIL PHASE III \ STORM SEWER IS INSTALLED /J / II •• • i PROPOSED LIMITS OF DISTURBANCE COINCIDES g BOUONJDARY WITH SEDIMENT BASIN #IECT's PARALLELING TREE PROTECTION. THE 9 (TYP.) THEE TREE PROTECTION, TREELINE, SILT PENCE, LIMITS OF DISTURBANCE LINE AND DRAINAGE DI -� VIDE ARE ALL OFFSET FOR j GRAPHICALLY/PURPOSES. • i ' • - - -' 6 • PROPOSED • 1 GREENWAY (TYP.) r C\ ® 1 I ■ q q � J PROPOSED LIMITS OFF q •• �� DISTURBANCE, TYP. ���r■■r■r■.■ I o0 i 1 ova' ^�• 4' TREE 'I PROTECTION i 00 4.0 ti MATCHLINE, SEE SHEE 7 _ � � �I1�11111�11�11■II�II�II�II I z � II■II■II■ ,/'_ � t � SCOTT R. LINS_Z Lic. No. 03579141, 8/04/20 �4 oast 0 nin 1. E�C'l� C / ■ � WI V1 N �. ■ z w w w ME Z ♦• U Ov U U J W Z t ■_= O Z Z Z Z R ♦ U L o 0 0 rq CD Z N Za CO `�•■ 0 � cY cC cr a a a CL O `/ Lu • ,�., w wW til tf1 e �1 •• -'■II■A■II■II■II■II■II■II■II■II■II■II■II■II■II■91■II■ /' • • I . • MATCHLINE, / SEE SHEET 9 / 1 i 4 EXISTING ' VEGETATION 'kr / TREE PROTECTION - I �' / /• / / •• j „� PROPOSED SAFETY FENCE, INSTALL SIGNS WARNING 00*1 =PROPOSED SWIM FOREST &OPEN j SPACE EASEMENT (TYPICAL) 40 GRA IC SCALE <_ o 15 4030 � so 120 - — (IN FEET ) 1 inch = 30 ft. 0 0 w 1-4Cq z w 0 W 0 � z Qf` ' Z N I..L O Z W m J N � � 1 J Lu Lu T� ~ Z J o� z V O ~ z L90 Tj W z = �'Lu U V) cz Y z U o Ln O Lu J Lu W ZW W W J � 2 W J Q 0 O 0C)o N U 00 w J LLJ w a JOB NO. 182150 SCALE 1 11=30' SHEET NO. 10 - \ ', - - PROPOSED LIMITS. OFDISTURBANCE - - ♦♦ 436 TW - IS CONCURRENT WITH AND DOES .PROPOSED LIMITS OF - _ . " - _ _ _ ♦♦ - . 436 BW ♦ 4Bp NOT ENCROACH INTOTHE70' WIDE DISTURBANCE, TYP. '" - ♦♦ - - T O 442 EG TREE. - 447TW ♦ .F 446 TW 446 TW _ f'yjv -446 TW 442 BW 444 BW 445 BW I 464%O BUFFER, AS SHOWN TP - - - - ♦ ♦ I '. V` %lJ. 441 TW - 440 BW 44.6 TW 442 EG 444 EG 445 EG ; Z 'PROTECTION, 460 TW TW 456 TV/- 447 BW - T -- - ♦ ♦448 TW.454 TW 435 BW 2 BW i ., 460 BW 452 BW 450 BW 454 _ ♦ 454 TW,452 W 435 EG �,5(0 44 ■ - 7 _ 480 448 BW _ - 448W ♦ 450 BW - .I SCOTT R. LINS'Z 442 BW ♦ 454 TW O --- - T-- 5 --�q(iIJIRE- - I O ( - - 474 � "..4 ♦♦ - asa ew U Lie. No: 035791.'>, __ BACKING SF 6B 46 TW _ IP i 1 I - �_ 47p o 472- -. o $/oa/zo w 4afi TW 446 T 18 lx , - - �� 443 BW P I r - 44 I EACH YARD D IN - --- `--- - -- --- - - - -- -- - _ 466 TW 468 TW 47p ♦ W SS - - - -- E INLET 1 - _ _ - - ♦♦ � -- 1 ,--- SHALLPRO_ TECTIONI I --- II 1 14701TW 6 I - _ - 6 (/) I� ZONAL Ely 0i I--- 4641BW -- -- _. ___ 6 ♦ W = d ' 464 e� - _ 464 - 4 45 ------ - 442 BW -- / I • �'I �I _ I `= --� -1 1460 T 464 8 PROPOSED LIM f OF DIS7URBAIVCE _I�CI_DES _ -=-- 462 TW — - _ _ _ - - - - 454--------- z ■i■■ - - lV 460 BW 462 TW 464 8W 464 BW f WITH THE WEST RN PROPERTY LINE BUFFER. - 462 TW 462 BW 466 TW 464 TW 462 TW - - -- U V 460 B W ♦ '--- ZM 1 I I 462 BW ■■ ■Iuuuuu ■uuuu� ■■■uu■■I♦♦♦ DISTURB OFFSET NE VIDE ARE-----� I 462 BW 462 BW /� 4fi28W.._. -� -- _ _---__-, 4 -- - --. ��.= II I I THE TREE PRO CTION, TREELINE MITS OF 460 BW'I \ y / �i - �y I TS 464 BW I ` PROPOSED WALL TYP.) RA 470 TW 36 BW , 11 ( - �PROPOSED WA _ I I 1 I �� I �� 1� li PS I "_ � • � L TYP. L�, I � WALL(TYP.) �.<II ■ U) (A fn (n _ 1 2 ti PROPOSED WALL TYP. I i� 11 I- a p 1 I 7. SS aC. PROPOSE Lu LOU WALL (TYP.) 1 I LOU E 11 �I 1- i ■ I_ -I �i H - �T� O' i - Z F II I - `I -I PROPOSED WALL (TYP.) t �� p O O O PROPOSED WALL TYP. _ IISI •�'� - - r'i 1 I- �� - --f.'1 - -lfrl- r z z z --- _— II ift — — — I 42 TW ----.I j`.- - '' l\`I n— s i. �--•�(,� _ _ �� - z 444 TW AI - F /�. yI- I s --_, 1 s s-_ 7 s s. s. II __ II'. �', —s s ,I �''I 5B2 ♦♦ PROPOSED w a Q O O O O 438 BW -- Y---4----I '. sib= — .a 1 —=-- ,--- �� s L.. s - ----- r - - O GREENWAY(TYP.) O U U U 44 o B W —TI �� I� .:L \�-... - �-T �1----' �_� _s-� --- - _--�_�,i to A .. U - ---T IN ram) �- I 6p Q 41 �_ w w w w a a a \ • I /' % I - - _` b� 1 m w w w w _ I \ I.._ W/ WIR z N (A (A (p w wt�. • .- --r, .:. _ vat—w w - _,-�- -- - ---- it '; . 1 BACKIN r/ � z z z z 1.93 ac -- - g ■�■ g 3 t _ I PROPOSED �I� � TREE w - �--.-t, _- - , I .. - ', .. s. I > _ _ I � _ I ♦ � vi � (n �11 II'. ■i■ I ' �w �TPPOTEw PROTECTION GREENWAY (TYw�.��-`lip��-A' li�.. - 1 u� 5w� > 452.TW 446 8W L SEDIMENTTRAP #1 SHALL REMAIN FUNCTw� --- - --- 444 TW PROPOSED LIMITS OF I II �= DISTURBANCE, TYP. I ', SEDIMENT TRAP #1 SHALL NOT BE REMOVED UNTIL ' � I LONG AS POSSIBLE, AS DESIGNED &SHOWN. 438 BW ' ■ A b /� •� THE UPLAND STORM SEWER & YARD DRAINS ARE I - DC �I D� ;y; •,, �' �/ OPERATIONAL & CONVEY RUNOFF TO SEDIMENT I - - it ' - xl \ TS � = � ,. ✓ BASIN #2. ST #1 SHALL NOT BE REMOVED UNTIL � '; � � '. � II " � 1��462 11 THE ESC INSPECTOR APPROVES ITS REMOVAL 445 TW SED SAFETY FENCE, I 439 BW P OPO" w v I 439 EG i , INSTALL SIGNS "WARNING .i".' ° i/• � � -- -. � _______ ■ - I I ■ QUICK SAND, KEEP OUT °' PI ■ ( I / .I ti �■++■ II, I ,_ I III-- i.�-- d I ,. lIII I _- - --- CD CD CD ----- -- - .454 \ 1♦• c - PROPOSED SAFETY FENCE , N mo 452 TW INSTALL SIGNS "WARNING 447 BW QUICK SAND KEEP OUT 4$ 45PRO 00 .445 TW -- ° I, CONTRACTOR ALL ENSURE I- - - - - _ - : - _ _ - I --_I ! I POSITIVE SLOPE MAINTAINED "--- - 2 - __ I — - 4398W '�,■. - -- ' _. --- � �. BERM SHALL BE ABILIZED AS ___ I :462 a ., - � ---- --- 454 - � ■ ' I i _ 439EG Is - - ------ _ ■ it A FIRST STEP IN I§T#'1R6ANCE. WITH� 462 448 TW'I ■ FOOTPRINT OF S IME - w ■ p - - I ■ — -- I I _ IN THE •H5� 46D 45 ■ r - ..I 446 BW �� NT TRAP ------ - -!' e I` TS - ■ z -r j '# 1 SHALL BE INS ALLED UPODI� -_� F\\\ \_�� - ■ = f . .. ., 1 ��' �, THE TRAP' A'C _� -__ .p. .. .. •... .• p � -�/ I r I I 444TW I■ �` i F. E • I Lu 1 438 BW 438 EG ■ ST1 . 11 442.TW 4!♦7 W O _ - k t t w ■ Ch J 4368W - _ / BW ` s c� - �, - w� k 11 436 EG I■ .. � � c` _-'-- ram" ��- w w w w w. w w ,, w w r`T, w / �� __ F e gaee 440 TW I ♦� 447 TIN I �r`h 44 '��^_" �' • w wow = - -- ' %�- �s �� 434 BW 434 EG I ♦ 444 BW . II I ♦ !, ; .". _ __"-'_ - - - \\.- � 1♦ STREAM, < w � , 438 TW __ _ -- ._li 43�3 BW II ♦'►♦♦♦. 1tb ' /�l/" R W� ■■■ ■■■■■1♦` - 3` s s _. ■ ■�� ►%■ � �'� O �/ / 447 TW ■ _ - I ■ 434 EG �� i. w ■ k - ■■■■ _ /. / �- Q I ,..♦ _ _ _ ....6♦ pi / so/ N 434 TW434 BW 1 w/<. ♦♦♦ ♦ ♦♦� - ..- ., ,1�I /, •♦ / 4 / ■■ 11 34 EG w s ♦ ♦♦♦ ♦ ♦■■ 454 kS ♦♦♦ s r♦♦ ( 4y < 4 _ ♦ � ♦♦♦ _ _ ice, .•• I _ ' � ♦ '�••. � I � W 1� � ■ w ■■'%♦i♦s■♦♦ ♦ r /O 448 i BW=44/ SCALEuj --- -- w ♦ ♦ _ _ - - 6 f r 65 i __ 30 0 15 30 60 120 ♦ Imlllllll� T� ♦ � ICI I - ">:: - ii'� �� ♦ ♦♦ �� I�I �aV I* PROPOSED _ - ". - -� r -. - O W ♦ Y '� �., "� ♦ ♦ y. �:I i, 1 ■ I: li. ` - GREENWAY (TYP.) - <- �.. <-, - ♦♦ 1♦ H ♦ I'0 1 TW-448 r �' / ( IN FEET ) " ' w �� ♦. ♦ v I ■ E ■ �� BW=446 , / 1 inch = 30 ft. - // i� ♦ v� °I I �' �•--- _ I� ■--- ---! Ii PROPOSED SWM FOREST & OPEN 'T a!- . W < F S♦ � � � �- I - I' � SPACE EASEMENT (TYPICAL) „ '� � _ ■ ai - - ,> . ;,' . ♦ v v II!__-� _ I� _� INLET ■ II -n i _ r. ;� 1 ♦ ,, �x G � W w / 1 63♦♦ �',� I } P OTECTION, ■ II �. - -` - LLl ■ -' I PROPOSED WALL. A DIVERSION SHALL _t /� -' / % w ♦♦ v - _.. -'- III _`< I--_ ■ I BE INSTALLED UPHILL OF THE WALL TO _ 40 i W ♦ �I I ♦, �_ I. _ W ♦♦-�. I TREE -DIVERT RUNOFF 7(7 SEDIMENT BASIN. 1 �'' �/ uj O ♦ _ ♦ ` `..:,,- :I �� �. / �� /� "I ■W■t al■ ■ j---I I, PROTECTIONS - / �, . V) ♦ - - W > e: '■ ♦ry ALLOW PROPOSED ` I v...- = W :.:� ♦♦ WP P DSTORM SEWER `' - ..,wry_ - •?; / ■ TW=450 ♦ TO OUTFALL INTO SEDIMENT - : - / �■ 454CIS _ I. BW�446 W ♦ Ix TRAP #6. UTILIZE STR 410`*� - v\ it l h �- {� ♦••' ♦ it i II s 1 (RIM-440.90) AND OUTFACE ;% /p /� 'V<. _ i - I ! coPIPES TO OUTFACE SEDIMENT // � .. , - 1 .'ram- w �♦ /� , . / ..; .. n �� �t �. i W � � sv �. .�-+�`, LL.I � ■ ■ — {�, T I: TRAP. SEDIMENTTRAP STONE �I"'�L w� �1♦ �� ..yea. ♦a* W -� II s - LL.I LLI I I./,: '< �► PROPOSED LIMITS DISTURBANCE. THE TREE ♦ / WEIR SHALL OUTFACE INTO THE � � ,. �. r � / ♦ �... - � � - -' ■ / STR 410 UNTIL POND MAY BE ' a/ • - / ✓ ♦♦ '. I''I: ♦♦�a<e-� t4 PROTECTION FENCING SHALL BE PLACED ON THE �: _ _ - ,� - _ - W W I� - ■ w/ - ♦ ' . " 1♦ `� A' LIMIT OF DISTURBANCE LINE WITH THE. SILT- -- REMOVED AND UGD INSTALLED- y -•r q" ♦ , - , ♦/ I Q t --♦ - _,� '. �\ � � ■ � UPON INSPECTOR APPROVAL. %<��- '�''� / ♦ - � -'.� r ♦ ,.r I -FENCE INSTALLED IMMEDIATELY ADJACENT TO � � � � - � � J I ' � (%) ; �♦ \\ ■ . , h /a 9a ♦1 THE TREE PROTECTION FENCING. THEti_ ��� - -` i i SEE SWM PLAN FOR OUTFALL �,// w / - f" / ` _ --- I �� ■ `� / ♦ u' 4� - DI.VERSJON, DRAINAGE DIVIDE, SILT FENCE, TREE / = - - ---- / i ® I ■ DETAILS. ♦ I. �.,-�� J ■ T, °..'� '� mil' / "� ... `'a. K° ♦ ,° II PROTECTION LINE, LIMITS OF DISTURBANCE, AND /� �'.. �� \�. - • ■ I, q i, / :' ., �� 4 _. A / ♦ I. TREELINE ARE ALL OFFSET FOR GRAPHICAL U..I i r �, 'f. DC. „• / / ,� _ /i" / y ♦ �,%� I PURPOSES. - / I v _ f nN/ /. 0 A'�. `. ■ l / ,:1' ".. r ♦♦ - B I SF wP WIRE. / • I I s - L.L ' i t<. � ♦ ■ i � . / - y/ y / �� � ♦ �'" � I BACKING - . I. �� ` � I\ � � - - � i STR 410 RIM=440.90) ♦ ■ �, / _ �- < ,� ± i I. T` , / / \ �� • / p r, TO BE INSTALLED WITHOUT ■■ - -- ♦ SEDIMENT ■ % / f -'`ate ♦ / - rQn TOP IN PHASE III TO OUTFACE \ � ■■■ I _ _ � �. H <" / / d /'. ♦ �I �j'` �� •/ _ � - SE <-<..../ ,✓; i i „ / j + I. ,F (�:.` \` / f/ CD _ \ ♦\� � _ � �\ ____ F / \ r,�3 � �,I,-. / / �, .♦♦♦� �. /'._ � �If j_.- � 'i - I PROPOSED . O ♦♦�� � i' � J � .i // � / ■ '. � / � ♦♦♦ � 4 �� / 1 � GREENWAY(rvP-) ♦♦s� �V • I TS 7 /� / ♦♦♦ �( _ / �� / ® �X• = `. I ._ a \ ;� 3 /� %� ■ 1♦ EXISTING ♦ v.�� ` _ �' l I / VEGlim- ETATION — r ♦� I.. r �� s 1't I j -- h ® r W/WIR SF g v w w DC ��... ♦ V ��� .. ��. I�'`. � / J� // �� �.��... � �{` ♦�� 1�. � i '.,' � BACKIN � v : p w ♦1 a.z ♦ ,y ,', �< — — �_ JOB NO. PRQTECTI , t� ( / /i' r�45v: �. ", i X 3 �� - — - 182150 e ,/- - / I Irl SCALE I = 1 „=30' ♦. • ♦ \ \ 1 \ \ MATCHLINE, y y I ' SEE SHEET 12 5 / � �� 4, / l �' � � � SHEET No. \ / Il�lnli■ ■II■ ■'lloll .li II �C r r PROPOSED GREENWAY (TYP.) r r d �'°a — ••• \ �, MATCHLINE, SEE SHEET 11 / / \ �r TH OF II1II2I14I'1II■ ■II■III /z / A vv CCD Sz OTT R. LIN i 10, U Lic_ No. 035791 �N q 8/04/20 0.21 ac. .Pd� -\ \ \ ' / / \. / \ SIONAL ET1 r y I z „ /� / 1 4 BW / ♦v v Lt40 d . -. � ', '. '. l � ,N,ti y� ♦1♦, ! � .:a � / /. *♦♦ , �PROPOSED SWM FOREST. & OPEN � . ', - /,' � � Z Z - / N ♦ / ,f ♦ v ♦ \ \ �.. /7 / , / r " ' SPACE EASEMENT (TYPICAL) / i 9 b O r ♦♦ �•'\ � � \ \I >_� / / °� ce, ♦ '®' I /� ' / uOy O} O PROPOSED LIMITS OF ♦ � V V V DISTURBANCE, TYP.0 � } } z z z C / // �ry K .F' ♦♦ sF ,j �/ 4 PROPOSED LIMITS OF DISTURBANCE COINCIDES - k / U U U U j p� ♦♦ P .:F syo / �"00, WITH. SEDIMENT BASIN #1's PARALLELING SILT / // V E rn o 0 0 - / .y ♦♦ `�,. / / e \ / ® FENCE THE TREE PROTECTION, TREELINE, LIMITS i Z Lu // \> ♦ > „ �- / , 4p' OF DISTURBANCE LINE AND DRAINAGE DIVIDE / i ^1 ti o '� ♦♦ _ ,' ,'' ARE ALL OFFSET FOR GRAPHICALLY PURPOSES.ce 1 / ♦♦ ��. /' 10, P.TREE _ � /A > z Ln to a /l®� /�.♦♦ `'. /'n°\ \\.. N j �'��` i , �® PROTECTION110, PROPOSED SWM FOREST.& OPEN / 0. ac. ♦ �� 43$ �/ \ / O Cam, w La / / '\ SPACE EASEMENT TYPICAL - / r 42 ♦ ✓ / : / \ / ® PROPOSED/., (TYPICAL) / ♦ �°.,, ,/- ENW Y TYP ,'` : p E ,/ > > > > f y 4y GRE A E / 4F / C / \ \ \ \ \ T l TREE PROTECTION ® // �� i � �P w 0)o o O �'. e �/ W N N N DC _\ w/WIRE \ /.> ( \1 �� ��� N M 10 co 00 BACKING F /' � ,. � � �. / P � I. ,' i i .� .� — ' r, ,PRESTEEPJP INLET SLOPES(TYP.) PROTECTION, - - - Lu /r r / // / ✓ �� �� - - /I / V 1 PROJECT LIMITS �/ � d � //j � � / , / // � � it � II � / � � N (TYP.) // ® �vv / / � % /� � �\ �� / /' � II A � � II. ✓ /� , / -G � EXISTING fl I J� �_ ,. / r \,qE \\- A/ VEGETATION M A/ 1 yy DC Ix j Al � A� Z PROPOSED LIMITS OF DISTURBANCE COINCIDES / �" , / `� / a' r� /. / ® . / z - / i / / _ w N 04 WITH THE TREE PROTECTION. THE SILT FENCE,///� J TREELINE, LIMITS OF DISTURBANCE LINE, /' '®/� /''� %� ✓' ,� ` // �� I/T' / �% /� Q ' O DIVERSION AND DRAINAGE DIVIDE ARE ALL / '� o ,' �>„ /! J. , �- �\ ^y, °/ - / / Y / � OFFSET FOR GRAPHICALLY' PURPOSES. �/ ® / �� � \. ,', / / - 4* SB d �/ %`. �,,/ V� ,/ PROPOSED i -r/ /. �1 0O / C, PROPOSED' /' Rv� v /� CW =Oa C. // ' GREENWAY (TYP.) I J j \ GREENWAY(TYP.)— / � \ \� / / .56 / TS r�- /-�'� -' / �' r =6.6 min. � �,� ,/ �,��� � Z � 42p //. �� , A TREE _�00� V _ Cz �� PROTECTION v \ Yf / — r' / ,h 5 OLu /ul 1 / W1 WIRE / �I W ■ . . — i r INLET ��' y , / SFBACKING - / —:- ', PROTECTION, Lu Jt� ?, / / _ A 9 / 4 V. A OV PROPOSED LIMITS OF C) ,p 'DISTURBANCE, TYP. / ' / ,. � . '. 5 f q , / % _C ,d �� F— v o00 W s � PROPOSED LIMITS OF pISTURBANCE 00 � w � \Y � JOB NO O COINCIDES WITH THE TREE PROTECTION. - /�/ /�, ► p v\ d - 'rr��� ,. THE SILT FENCE,. TREELINE; LIMITS OF � ® v / DISTURBANCE LINE, DIVERSION AND - - /' DRAINAGE. DIVIDE ARE ALL OFFSET FOR l UG 1 JO / ®\, TS` < ,/ GRAPHICALLY PURPOSES. - - -.'// / �i' GRAPHIC SCALE SCALE LIMITS OF DISTURBANCE AREA MINIMUM +� \ OPES. /, % , 30 0 15 30 60 120 1It i j ) O .'iI �/ OF 5' FROM THE PRESERVED SL- - „ ✓ 1II0IINJ10110IJ11IINII0IINJIIsIINII0Jim I101101isI10111 y'r` SHEET NO. S / II q1 .II ♦ MATCHLINE, SEE SHEET 13 ( IN FEET) 12 u / j 1 inch = 30 ft. ♦i �♦ ♦♦ C PROPOSED LIMITS OF DISTURBANCE COINCIDES h r PROJECT / .WITH SEDIMENT BASIN #1's PARALLELING TREE p BOUNDARY -�� I/ PROTECTION. THE TREE PROTECTION, TREELINE, (NP') SILT PENCE, LIMITS OF DIS,URBANCE LINE AND I DRAINAGE DIVIDE ARE ALL OFFSET FOR GRAPHICALL`('PURPOSES. PRESERVED STEEP J SLOPES (TYP.) I / PROPOSED g / ' GREENWAY (TYP.) PROPOSED LIMITS OF DISTURBANCE, TYP. p, it TP TREE PROTECTION I \00 ��® d I � � e 1 ■II�II[lII�II,�II�II�II�IIItII / L �n�ll■ slim limiinumilsiimiislisilsiimiislifiinlimii01101r MATCHLINE, SEE SHEET 12 TS / r s / / N� s / 4* � S EXISTING / VEGETATION / / TP i TREE 4 PROTECTION ®� PROPOSED SAFETY FENCE, � 00 INSTALL SIGNS °WARNING / PROPOSED SWM FOREST &OPEN SPACE EASEMENT (TYPICAL) '' GRAPAC SCALE ( IN FEET ) 1 inch = 30 ft. of �COTT/R. MCLINS'Z Lic. No. 035791 ,a 8/04/20� �SIONAL E�O� Ln F z z z z w w w w O O O O z Z O J Z Z z =O 0 0 0 O O O M OoO Z cn .D o O t\ W ce K CC K Z a a d / A W H a a a > o >w 5 w Lu Lu && CO O O O O F M N 01 C) N O M W l\D z L9 Ir— zcl�� N O Q � WJ CN N � N O W > ,-� w L r� Z z `JJ 06 O / 1 , O wC L9 O T� G Q � Z — = w U W Y o w U I--- U) O O J w ZLLj w w U) j_ 2 W ry O O 0c0 N U w J ti u F w w w a N JOB NO. 182150 SCALE 1 "=30' SHEET NO. 13 '� ' • PROPOSED SAFETY FENCE, SEDIMENT BASIN #1 DETAIL INSTALL SIGNS "WARNING _ SCALE 1 "=30' Sediment Trap / Basin Subarea Summary QUICK SAND, KEEP OUT" _ ♦ ♦ ; Phase Phase11 Phase PROPOSED ♦♦ �' / ♦♦ TEMPORARY r- / DIVERSION, ♦ - / / ♦ 1 ; PROPOSED 30' WIDE GRASS TYP. i LINl,ED EMERGENCY SPILLWAY _ CREST ELEV.=383.00' ♦ ��� i i �400, ® �S, raclllly Area, ac. Area, ac. /Area, ac. Sediment Basin #1 5.90 5.26 7.22 ' Sediment Basin #2 3.06 4.31 7.55 Sediment Trap #1 1.58 1.93 1.93 Sediment Trap #2 2.52 2.91 - Sediment Trap #3 1.18 - Sediment Trap #4 1.28 - Sediment Trap #5 - 1.63 ♦ ' Sediment Basin #2 is designed for a 7.55 ac. subarea. This subarea takes into account the removal of sediment trap #1 & ^y ANY o� matches the final SWM design acreage. 000 0 00 p 1 \ r O PROPOSED 00 - °\° ® , BAFFLES - ® PROPOSED 048" CL. III RCP STANDPIPE TO - A\ • / - SERVE AS RISER. RISER RIM ELEV.=382.00' w/ 6" DEWATERING ORIFICE INVERT AT 379.63. TRASH RACK REQUIRED AND SHALL INCLUDE ANTI -VORTEX DEVICE. / 00, 40, I � I / Sediment Basin Design #1 MM 1'WI SPILLWAY iffl X T CRESLSTLLWAYRCErvO' drainage area (acres) 7.22 'basin volumes: (using T contour intervals) °tn-s"� STORRMWEiiEi FLOODPLAIN, elevation (ft) contour area (so volurri volume(cy) D3. TYP. O O 376.75 3730.0 0 0.0 wN. ,.D• - - r a PROPOSED` O / J -C ■uR [REST I z % GREENWAY - '\� `, , \ 378.00 4362.0 5,052 187.1 •plr,'•sroRACE T � NO (TYP.) e .k?- k- 5 550.0 0 380.00 5456.0 14,8.0 k� ' / t k ' 38= 00 6650.0 26,936 ' WLT • sroRADE �k o_ 997.E ' \ / 1 'r 384.00 7944.0 41511 1537.4 V I k < k / I f• TO J'1 STO/ 4 EDUCED 03 fall )J/ STREAM LIMITS, _ r \�� ,, ®k • �k � wet storage: I O - - TYP./, ` _ wet storage required (cy) (6TDA) 484 design high water 383.00 k ()0 1, _ '�k' " ,� dewatering orifice elevation (ft) 379.63 top of dam (ft) 384.00 o oil, r < wet storage provided at this elevation (cy) 484 top width of dam (ft) 10.0 available volume before cleanout (cy) (34'DA) 245 bottom of basin (ft) 376.8 i PROPOSED RIPRAP LINED. - -_ ��/; j' / / ( cleanout elevation (it) 378.30 approx. bottom dimensions: 71'x75' OUTLET PROTECTION SEE SWM , / / _ distance from cleanout to orifice (it) (> 1') 1.3 upstream face slope: 21 . i DEVILS SHEET FOR. DESIGN ��. - , downstream face slope: 3-1 I INFORMATION 40 d storage / �;dry storage required (cy) (67*DA) 484 baffles: YES principle spillway crest (ft) 382.00 length of flow, L (it) 85 r dry storage provided at this elevation (cy) 514 efkctive width, We (R) 78 A diameter of dewatering orifice (in) 6.0 L / We (baffles required if < 2) 1.1 diameter of flexible tubing (in) (orifice+2") 8.0 / collars: YES , -! j* runoff depth of water at spillway crest (it) 5.25 C (use 0.45 for bare earth) 0.56 slope of upstream face (Z1) 2 , tc (min) 6.6 slope of barrel (Sb) 5.75% 4e 1 2yr 4.8 Q 2yr 19.4 length of barrel in saturated zone (Ls) 40.91 ;01 25yr 7.0 Q 25yr 31.1 number collars required 2 410* dimension of permanent collars 4.0'x4.0' I 400, principle spillway: available head (ft) 1.00 emergency spillway: YES diameter riser (in) 48 required capacity (Q25-Qp) (cis) 0.0 A, 00 00 I 0 spillway capacity, Qp (CIS) 40.0 bottom width (R) 30 r , / *0 diameter trash rack (in) 72 slope of exist channel (ft/ft) 5% barrel length (R) 121.7 minimun length of exit channel (ft) 15 head on barrel through embankment (it) 12.00 crest of spillway (ft) 383 diameter of barrel (in) 24 Y48 Rim PROPOSED 048" CMP TO _ SERVEAS RISER. RISER - RIM ELEV.=437.25' W/ 6" _ DEWATERING ORIFICE INVERT AT 435.82'. BAFFLES �010 •��Yi SEDIMENT BASIN #2 DETAIL f --- s SCALE 1 "=30' � I � f y • i \ PROPOSED SAFETY FENCE, INSTALL SIGNS"WARNING QUICK SAND, KEEP OUT" PROPOSED GREENWAY I L- PROPOSED ' II 02'4" ; PERMANENTNT CL.CL. III RCP I (II=428.0, I0=416.0) PROPOSED 25' WIDE GRASS LINED EMERGENCY SPILLWAY STREAM CREST ELEV.=438.25. LIMITS, TYP. SPILLWAY SHALL HAVE 4:1 SIDE SLOPES Sediment Basin Design #2 drainage area (acres) 7.55 basin volumes: (using 2' contour intervals) elevation (ft) contour area (so volume(cf) volume(cy) 434.00 6600.0 0 0.0 436.00 10163.0 16.635 616.1 438.00 14375.0 41,052 1520.4 440.00 19443-0 74,743 2768.2 wet storage: wet storage required (cy) (67'DA) dewatedng orifice elevation (ft) wet storage provided at this elevation (cy) available volume before cleanout (cy) (34'DA) cleanout elevation (R) distance from cleanout to orifice (ft) (> 1') dry storage: dry storage required Icy) (67'DA) principle spillway crest (ft) dry storage provided at this elevation (cy) diameter of dewatering orifice (in) diameter of flexible tubing (in) (orifice+2") runoff. C (use 0.45 for bare earth) tc (min) 12yr 4.6 Q 2yr 125yr 6.7 Q 25yr principle spillway: available head (ft) diameter riser (in) spillway capacity, Qp (cfs) diameter trash rack (in) barrel length (R) head on barrel through embankment (ft) diameter of barrel (in) 506 435.82 551 257 434.82 1.0 506 437.25 594 6.0 8.0 0.52 7.2 18.1 28.9 1.00 48 40.0 72 141.83 22.25 24 NOTE: ALL TRASH RACKS REQUIRED ON ALL ORIFICES. ALL TRASH RACKS SHALL BE PROVIDED AN ANTI -VORTEX DEVICE. Sediment Trap design #1 drainage area (acres) (<3) 1.93 trap volumes: elevation (ft) area (so volume(co volume(cy) 442 1789 0 0.0 444 2576 4,341 160.8 446 3463 10,358 383.6 wet storage wet storage required (cy) (67'DA) 129.3 bottom of stone weir (ft) 443.7 wet storage provided at this elevation (cy) 130.1 slope of wet storage sides 2:1 dry storage: dry storage required Icy) (67*DA) 129.3 crest of stone weir 445.0 dry storage provided at this elevation (cy) 134.0 slope of dry storage sides 21 Sediment Trap design #2 drainage area (acres) (<3) 2.91 trap volumes: elevation (R) area (so volume(cf) volume(cy) 420 3234 0 0.0 422 4324 7,532 279.0 424 5515 17,347 642.5 wet storage wet storage required (cy) (67*DA) 195.0 bottom of stone weir (ft) 421.5 wet storage provided at this elevation (cy) 201.7 slope of wet storage sides 2:1 dry storage: dry storage required (cy) (67*DA) 195.0 crest of stone weir 423.0 dry storage provided at this elevation (cy) 248.3 slope of dry storage sides 2:1 MN. 1'WI SP9IWAY r w"IN1uY CREST OF EYEFGEM:Y WUWAY DESIGN HIGH WATER (PS-YR. VORA ELEV.) MN, 1.0• MR MST DRY •STORAGE DDIANETN110 Dena WET • s,BRMiE cLTAxauT PONY • WE7 • STORAGE REDUCED r0 ]A C.Y./ XWS design high water 438.25 top of dam (R) 440.00 top width of dam (ft) 10.0 bottom of basin (ft) 434.0 approx. bottom dimensions: 761x85' upstream face slope: 5:1 downstream face slope: 3:1 baffles: YES length of flow, L (R) 96 effective width, We (ft) 133 L / We (baffles required if < 2) 0.7 collars: YES depth of water at spillway crest (ft) 3.25 slope of upstream face (Z1) 2 slope of barrel (Sb) 8.46% length of barrel in saturated zone (Ls) 29.48 number collars required 2 dimension of permanent collars 3.5x1fi' emergency spillway: YES required capacity (Q25-Qp) (cfs) 0.0 bottom width (ft) 25 slope of exist channel (ft/ft) 33% minimun length of exit channel (ft) 48 crest of spillway (it) 438.25 Sediment Trap design #3 drainage area (acres) (<3) 1.18 trap volumes: elevation (ft) area (so volume(cf) volurri 434 1084 0 0.0 436 1810 2,863 106.0 438 2636 7,283 269.8 wet storage wet storage required (cy) (67'DA) 79.1 bottom of stone weir (R) 435.6 wet storage provided at this elevation (cy) 80.6 slope of wet storage sides 21 dry storage: dry storage required (cy) (67*DA) 79.1 crest of stone weir 437.0 dry storage provided at this elevation (cy) 99.8 slope of dry storage sides 21 DNR.[REST M STORE WEIRyyyi i - cRauNSND � - ncv. 1}II DRY STORA6E - WET STORAGE A, uEc IXGVA m) FUpI CLOM OKI,. ne -SCE PUTT 3IS- C04W 400ft YTE� 0%,I35I RpU� weir length (ft) (6xDA) 11.0 bottom of trap elevation (it) 442 bottom trap dimensions: 26x79' top of dam elevation (R) 446 top width of dam (ft) 6' top trap dimensions 42`x95' 1' NY109Lf CREST" SIM WE■ •MRM01• ro nn. 7, DRY S70RAFA WET STORAGE (EITJWEfl) _ _ •, 1 Ir aarN oeuxn `n1ER OLF, nn .YC PutE ].is-, cOMSE ADOW"IT Cv S 1 xpua weir length (ft) (6xDA) 17.5 bottom of trap elevation (R) 420 bottom trap dimensions: 44'x 109' top of dam elevation (ft) 424 top width of dam (ft) 10, top trap dimensions 59'x125' weir length (ft) (6xDA) 7.1 bottom of trap elevation (ft) 434 bottom trap dimensions: 16X77' top of dam elevation (ft) 434 top width of dam (ft) 10, top trap dimensions 33X93' ■ SEDIMENT TRAP #1 DETAIL ■ SCALE 1 "=30' IF ■ ■ N ■ ■ PROPOSED SAFETY FENCE \ IQUICKLSIGNS "WARNING SAND,KEEP OUT" r PROPOSED GREENWAY (TYP-) d ' I I i PROPOSED _ 'GREENWAY (TYP.) I �. I I 1 r � 1 i r Bs 9 PROPOSED 17.51 - i t ■ RIPRAP LINED ' y 4 SPILLWAY CREST ELEV. 423 I r I / r r / d / i / / / , / / / / TEMPORARY DIVERSION, TYP. PROPOSED 11.61 RIPRAP LINED SPILLWAY CREST ELEV.=445' SEDIMENT TRAP #2 DETAIL SCALE 1 "=30' TEMPORARY DIVERSION, TYP. PROPOSED: SAFETY FENCE, INSTALL SIGNS"WARNING QUICK SAND, KEEP OUT" SEDIMENT TRAP #3 DETAIL SCALE 1 "=30' PROPOSED. y® GREENWAY N (TYP.)! PROPOSED 7.11 , RIPRAP LINED SPILLWAY CREST - ELEV•=437' - PROPOSED SAFETY FENCE, INSTALL SIGNS "WARNING QUICK SAND, KEEP OUT" iCOTT/R. COLLIM Lie. No. 035791 3/12/20 r HLn Z w w w � � f U U U U Z O Z Z 7 CIL = k L) U . U U U D CD Do 714 Z w : � m ❑ ti O Z J Q Nto O rY U w w w i ? Z (n En 3 3 3 Lu Lu ❑ ❑ w U)LU w w C � � o C" 0 Lu N N N D\Y M kDD 0 0') z IT- < MEMNON C' 0 LL E (0 W is _V) N J W J 11J W TI n J �c OV O O Z O T� O Q ` Z U�^ w WE v / LOU Y w U U) U1 D CZ _O piaCO Lr) Z W � � J w Mainland U) j J L _ w J �< V O 0 O O C:) N U � w F_ w w CIf JOB NO. 182150 SCALE 1"=30' SHEET N0. 14 i w _-IJI 114 ,� ♦1 0wu \ 000 L • I \ 1 �- ULVERTtA��40 - 60.50 ac. _ FINAL Tc=0.32 hrs./� 100' OF OLF w/ A ELEV.-5' (Tc-0 23 hrs.) i 700` OF OF wl 0 ELEV..=fit (Tc=0 04 hrs.) - / a5G' of CHANNEL FLOW Ca 5 it/ IT =0o5=h \ s c rs. _ *♦ y A 1 I r �l�. / / _ � � ^ r \ \ w w�,■■■■�� w I i ♦ III ����� ��- �� V� - � � �� �� �'�' ice- - �-_ � w■■■■■■���■■■■�����♦ WATERSHED SUMMARY CN Area, 10-year Flow, 25-year Flow, 100-year Flow, ac. Cfs CfS Cfs Culvert #1 57 60.50 74.42 121.15 219.74 - ONE (1) PROPOSED 5'x5' -� REINFORCED CONCRETE �\ .- BOX CULVERT - PROPOSED VDOT STD. -� CONCRETE HEADWALL WITHOUT WINGWALLS o+00 / - - BLOCK LIMITS, TYP. \ PROPOSED VDOT CL. Al RIPRAP LINED UPSTREAM ENERGY - DISSIPATER, WITH FILTER FABRIC UNDERLAYMENT. FILTER -----FABRIC TO BE KEYED INTO THE EXISTING GROUND A MINIMUM OF 9 AT THE ENDS AND ALONG THE PERIMETER, AND THE STRIPS OF FABRIC SHALL OVERLAP A MINIMUM OF --- - - - - -12".-ENERGY DISSIPATER DIMENSIONS:-10 LONG, 10' - - - WIDE AT THE CULVERT AND 18' WIDE AT THE END. -STONE _- - --- - THICKNESS=18" `, I BOX CULVERT DRAINAGE PLAN ! - °! ! t ! i■Ile. rA -AREA ROUTED THROUGH WET- y ■ % POND IN WPO 201800051 (THIS ANALYSIS CON TIVELY ASSUMES ZERO ATtEII�7N) y SCALE 1'=200' rfl,\ II IC\ PROPOSED CULVERT CROSSING „•:, _ BOX CULVERT DETAIL SCALEI'=30' LIMITS OF PROPOSED VDOT CL. AI RIPRAP LINED DOWNSTREAM GREENWAY, TYP. -OUTLET PROTECTION, WITH FILTER FABRIC \ UNDERLAYMENT. FILTER FABRIC TO BE KEYED INTO THE EXISTING GROUND A MINIMUM OF 9"AT THE ENDS AND - _ ALONG THE PERIMETER, AND THE STRIPS OF FABRIC SHALL OVERLAP A MINIMUM OF 12". ENERGY DISSIPATER DIMENSIONS:. 16 iONG, 15' WIDE AT THE CULVERT AND • _ - - -21' WIDE ATTHE END. STONE THICKNESS=18" 3+16 \ 3+00 PROPOSED VDOT STD. CONCRETE � - \'\HEADWALL WITH 450 WING WALLS i - � e _ �� �•, PROPOSED CULVERT DIMENSIONS 250.00 LF @ 3.04°l0, INV. IN=403a0- ��\ INV-OUT 395.50 PROPOSED VDOT CONCRETE HEAD WITHOUT WING PROPOSED VDOT CL. AI RIPRJ LINED UPSTREAM ENERGY DISSIPATER WITH FILTER FAB UNDERLAYMENT. FILTER FABRIC BE KEYED INTO THE EXISTIN GROUND A MINIMUM OF 9" AT' ENDS AND ALONG THE PERIMEI AND THE STRIPS OF FABRIC SH OVERLAP A MINIMUM OF 12" ENERGY DISSIPATER DIMENSIO 10' LONG, 10' WIDE AT THE CULVERT AND 18 WIDE AT Th END. STONE THICKNESS=18 CULVERT NOTES: 1. CONTRACTOR SHALL ENSURE THE PROPOSED CULVERT #1 IS COUNTERSUNK A MINIMUM OF 6" INTO THE STREAM WHEN IT IS INSTALLED, ON BOTH ENDS OF THE CULVERT. 2. INSTALLATION OF PROPOSED CULVERT #1 SHALL MEET ALL CURRENT VDOT STANDARDS AND SPECIFICATIONS. SEE THE NEXT SHEET FOR DETAILS. 440 440 435 430 430 425 ROPOSED GRADE -0 420 41 5 415 410 410 TxT REINFORCED STD. CONCRETE BOX PROPOSED VDC T STD. NALL CULVER CONCRETE EN WALL JALLS I - WALLS WITH 5o WING 405 �GR 405 DE GRADE IP ZIC _ ---_ \ TO 'HE��.� 25p 0 IN�403.�p 3.04/o 1{I \ 400 ER, IN INV OUT_3 4LL 9 s. 50 I � NS: \ E ,, - PROPOS D VDOT L. AI RI RAP LINED DOW STREAM 395 OUTLET PROTECTION, WITH FILTER FABRIC -z UNDERLAYMENT. FILTER FABRIC TO BE KEYEDINTO THE EXISTING GROUND A MINIM M OF 9' AT THE ENDS AND ALONG THE PERIMETER, AND -THE STRIPS-O: FABRIC SHALL OVERLAP A MINIMUM OF 12". ENERGY C ISSIPATER DIMENSIONS: 16' LONG, IT WIDE AT THE CULVERT AND .J' 02P WIDE AT THE END. STONE THICKNES =18" 390 0 Coco� 0 w(o N ELL 00 0 0 o a ro m 6 `n � � d- � r0 r°' 0+50 1+00 1+50 2+00 2+50 3+00 3+25 BOX CULVERT PROFILE CULVERT N O . i SCALE 1'=5' (V) SCALE 1'=60' (H) Project Brookhill Neighborhood Blocks 9-11 Plan Sheet No. Designer FGM, PE Sheet 1 of 1 Rev. Dale Date Z7/20 STATION: AHW Controls CROSSING M HYDROLOGICAL DATA 100 yr. Flood plain elev. D.A. = 60.5 ac., CN - 57, TC -0.32 hrs. Design AHW depth elev. Structures elev. freq. TWelev. - Shoulder = elev. 440 _ CL elev. 440.4 DISCHARGES USED RISKA E MENT AUI Skew ° Cover x Q 25 = 121.15 CFS Detours Available Length Q Design= 135 CFS Overtopping Stage Q = CFS Flood Plain Management Inv. El. 403.10 So= 3.04% Inv. El. 395.50 0 = CFS Criteria and Significant Impact Ong. Gr. Elev. 403.6 L= 250 Ong. Gr. Elev. 396 Q = CFS CULVERT TYPE & SIZE Q Q/B HEADWATER COMPUTATIONS CONT. HW. ELEV. OUTLET VELOCITY End Treat. COMMENTS INLET CONT, OUTLET CONTROL HW/D I HW Ke do (dc+D)12 ho H LSo HW C.M. Smooth (1) - 5'x5' Box Culvert w/ 450 wingwalls 135 135 1 4.5 0.5 8.3 6.4 6.4 3.2 7.6 2.0 400.00 12.65 YES Inlet Controlled Note: Design assumes lower 6" is submerged Design Flood Exceed. Prob. Elev. Overtop Flood Exceed. Prob. Elev. SUMMARY&RECOMMENDATIONS: Base Flood s%Exceed. Prob. Elev. %T SCOTT/R. CbLLINS'Z ldc. No. 035791,�, p` p 8/04/20 O�SIOnrel, E�G�� z z z Z 0 O0 0 00 z r r r 0 J Z z 0 z o 0 0 0 o 0 0 Z1J 0 : \ 00 N M O z a 0� � ne 1--1 wLLJ a a Z a a 5 5 g 5 CL a a o � LU LU w M.I w w w . " W � � ce � co O, 0 0 0 N 00) 11J \ \ 7 H 0l M N M ID W L9 �, z Q CY) J z 0-5 Lj: O W� N N W L T-I z J > OZ5 Q � J 0N L L.. \ IJ ®® /� ® U v' � WV) X w U 120 Ln O J coZLLJ UJ W J - U) J J L _ W J Q � o O ®�0 N U coLU LU 0 w a to JOB NO. 182150 SCALE AS SHOWN SHEET NO. 15 2016 ROAD & BRIDGE STANDARDS BCS-OT GENERAL NOTES: Cosoclty: AASHTO HL-93 Loodeq Specil'.calions: Construction: Virginia Department of Transportation Road and Bridge Swificollons. Design AASHTO LRFD Brie a Desgwqn Soocfical'rons, Sth Edition 2010: 201' 1. ti Specifications: and 4lDOT M0 f-Cat'rons. Alconcrete final be Class A4. Deformed emforcinc bars shot conform to ASTM M15. Grade 60. At romfurur 1' Lnr a 1 Spot-81/2 the dstailed drawing) are to Centers of bars except wines otherwise noted and are sucioct la i06ricaUdn and construction tolerances. BU- A So.. AN, 12"= 0 [a BLI - C Ec. Soar. - D D Aternale BH3 wile Consttruction joints Anal be constructed and bonded in accordance with the current VDOT Road and Bridge Specifications. BHI Ti' BHI aAc wregvtred had Li.,Sd ex more l25' ajailength snotl be poured 3 eaom by providing vertical construction is^o: not et bang not emeeaing 25' between fonts nor more uron JO' from ends of Darnels. 0H2 8L1 oAcarnms Ae Mrs BHI and BH3 shot have a pin diameter of 24 bar diameters. 9" Iva Dimensions on bar dlograme are out -to -out of bors. Bars we elrGght unless atherwise 9now- The Iwpb r of ggLt and BL2 burs snown in the table Is the number of oltudinal bars Shown r, the typical see on and may not equal the total number of Cars required. BLI and BL2 bars shall U.9" Jo lyp have a lap of 30y bar diameters at spikes. At construction j?rots. first placed bars shall project 3C d=otie Eytimotetl OIIAN./LF snow, i g does not include r _ T3 PAN i] gor 0rotor stare he Iorolopsd ofnBLloand BL2 Dars. The additional wei M1I er IWl lUdlnd Op '8 anawn in the the a w The minimum cover of main "iforcrg bars Anal, be 21/2" from the face of the concrete for fOOI 1 face for HCHT culverts under D l0 Z tiA6 and 9hOtl be Y' Om the Of Nq Concrete at other culverts. ,A a Lop BH/ All reinforcing steel for culverts under D to 2 foot fills shot be low carbon/chromium reinforcing BVI Ateal conforming to A57M A1035. n BV1 At the Controct.0. aCtie, BVI bars may be spliced at the permissible construction joint in order to facilitate Construe kid. No additional compensation shot be provided for the increase in m reinforcing steel quantity We to the Splices. Headwoshorn assu l quantities me wingwals are to be built at to 454 angle to the ...dwell. Permissible Tingeare applicable to the NJ height and other corWitions indicated. My change in Its, construction c0 dntwns invdidotes these designs. B142 " joint lyp. N:ngwals referenced by let{{er apply, when the atceploble foundation level is the some for both q,. foundation Ievlrls different, the height the by and wings, If are of winawoll'iholl be adjusted s"lean of another uttered wngwal of the appropriate height. For wirgwaB details. refer to s.anl r; ..11, BH1 T2 BCW for ins apprdcria a f0 slope. BL1 - A a 12" - For details of extending !dating boxes, refer to .1conoawd BCE-01. d Soon- lop and bol. r •' For modticalion of 4eto95 for skeretl culverts. see Ina skewed box Oeto41 included _ TYPICAL SECTION peB' This standard shot be used with the BCS standard series. A COPY OF THE ORIGINAL SEALED AND SIGNED DRAWING IS ON FILE IN THE CENTRAL OFFICE. \VDOT SINGLE BOX CULVERTS SPECIFICATION ROAD MO BRIDGE STANDARDS REFERENCE :HEET I OF 2 REVISION DATE STANDARD DETAILS 1002.01 07/12 VIRGINIA DEPARTMENT OF TRANSPORTATION '1 A R I (, AN A 2016 ROAD & BRIDGE STANDARDS BCW-21 GENERAL NOTES SoacHicatlona: AA 0 LR D red a Oeu S mfucou.n. 5tn EE.muum 2010 20M Dnervw Re.anora end sHT 9n w . 1 VOGT Modi�la 9lon� at LImITD of VOIdtr O Standard WlnqWop desi gn The standard xingra designs are outlets on the tattooing assumptions: i oT11c eurge bad ccorneCo Is alivi between the wall and the box culvert BackfIlI H m r m ri h 7 it I a' Sackett wholl co Ie rvrwlar ate a wi m enrol Ict an o e at set 32•. D g 1 9 Tr i a} ne distance f Cahesly ackfl anal of be Itta0. Cam aMlon of the k BI material v(i In a ustanCe o 9 Perm D , h i po I t1 h h pac o e- a the he M of the wait snot be b wW compactor6 aN . a r r or 1n a a 1>e Trio Contractor ar at p vltie Tne Ordinaries Daa etaIntiInspected Shoat I. f p 10 {In n f fl t an -rl I I Awl or 1 wo a s tam cl o bus D grill 6 0 a •ter nth a TuD n and e > Y6 Q 9 g 0 her i ms re Iredi n i s dI a as . f r Concrete. M Te s� lea ncl enta� 1n 1� c t g d o qu Concrete AN concrete anal lob Coss A4. saint ...@anelit pp}��ryformmaad relnforcl burs 6Mc C ,farm ASTM b6 5 Grade 6a. A reinforcing Our dlmenslons on fOberiCC abdararrawin sh ce a $0 Ar a ar@Texceot'rnere oinerw9ae rate. one are Subject to Dimensions on bar dlogroms we out-to-mt of Cars. Bars are straight Unless otherwise shown. The concrete cover to the outermost rexiorc@menT bars shill be as folbra: Cot f0o+In dfaruts sl 3' min Mxm cover Weaum es2/wcovb M Can actor's option WV Series bar may be spliced at t f the foot! In order to h p r il aD o f n I I n in c n W u said afruct 5 e I@ and be coma ce If C Snoei . Mo 9fP M ..Cc m a n r fi �! 9 n r lnf In i M� al comae. sat o _1 be D ov pled a The nareaae I e me sisal glgnT sue to pn g ri ((II Iitew. the tl D Mxetaneous weeDHDI•s shot W placed at the lowest polnt f@ostal6 for free drafnage away from the wing. m Four • Wings W O be used O skew nT VOwsln 9 OrM .Far V TO 2rve TWO @ and Yp 9 t a P TYD T n f N fr V 1 N 4 1 .� t o T you II Wt ar to u e ar skews om ch T 5 . Far s n O above 5 . Pe she d .g y Y 0% Dp p WI Bare re Ulrbd. �phB WIf. wars tln D• USed far bOCh CU Vef 19 anawn On the BC abriBw ah• 9b. o I g 1 t P+ t at nq Tne d•s1 s srroWn are a0 (cable for aa 95' Ake• with the roadway and other corgliims Indicated. Ad, change In eats condlylane Inv.10fes these designs. Quantities mown are for one wing. WING MCA OuantItroS w-va, Nor High End gr_oa INS Low End Concrete CY Relnfwcemertt LB A 2.3 204 a.91 0.46 B 2A N 5 L05 2.46 C 3.2 273 121 0.49 0 Am 306 1.49 0.52 E 4.4 346 1.49 0.52 F 4.9 37G 1.71 0.52 O 5.6 434 1.79 0.55 H d 6 463 2.03 2.55 I 7.1 5 52 210 am J 7.7 58% 2.36 0.60 K BS 672 2.43 0.6 5 L 9.3 738 2.70 0.65 M 10.3 879 2.76 0.71 N 10.7 950 3.05 0A5 0 11.7 1014 11O BA5 P 112 1172 3.17 0.88 0 14.0 IJ37 1 5 0.88 R 15.3 1444 3.51 0.95 S 16.5 1591 158 0.95 1 7.5 1695 3.8E IA 3 U i&B 2002 3.92 123 20.3 2239 199 1.11 e 21.7 2493 4.07 1.11 X 27.9 2B6 4 ♦ ,2B 127 Y 31.7 3334 4.3E 1.30 I 319 M78 4.46 1.39 44 35.9 M76 4.5E 1.39 Be me 4522 4,56 1,48 CC 4La 4747 1 4.6E 1.48 DO 5&B 5689 4.99 1.71 IE 52.E 1 6313 5.10 1.71 A COPY OF THE ORIGINAL SEALED ANO SIGNED DRAWING IS ON FILE RN THE CENTRAL OFFICE XVDCif WING DETAIL R`� ROAD AND BRIDGE STANDARDS SHEET 1 OF B REVISION DATE 2: 1 FILL SLOPE - TYPE I 1007.01 1 07/12 VOCNIA DEPARTMENT OF TRANSPORTATION 2016 ROAD & BRIDGE STANDARDS 2016 ROAD & BRIDGE STANDARDS WF9 WFS WF6 LENGTH a LENGTH WING SIZELENGTH SIZEa FROM TO VARY BY FROM TO VARY BY SIZE FROM TO VARY BY FROM TO VARY BY A 4 6'-2' - - - - - 4 T-4' 2'-6' a,- IV 4'-9• T-10' 0'- IV B 4 7'-2" - - - - - - - 4 3'-4' 21-6• 0'- IW 4'-9• Trial' a'- IYz' C 4 81_2. _ _ _ _ _ _ _ 4 T-4• 2'-6. W_ 1Y/ 4'-1' T-10• 01- 1W 0 4 T-3' - - - - - - - 4 T-101 2'-6' a'- IV 5'-3' T-10' ;N- iDP E 4 10-3- - - - - - - - 4 3'-I0' 2'-0' ar- IV 5'-7 3'-10• F 4 111-7 - - - - - - - 4 T-IB' 21-6' 0'- IW 5'-7 3'-10• a.- IW 6 4 12'-3' - - - - - - - 4 4•-4• 2'-6' a'- 1%, 5'-9• 3'-10' a,- 134, H 4 13'-7 _ _ _ 4 4'-4' 2'f' 0'- 16 5-9' 3'-I0' 0'- 1- ' 1 4 IA'-4' 4 4•-I11 4'-2' a'- i1P<' 6'-7 51-6' a'- IjJ- 4 4'-10' 2'-6' O'- 6'-7 T-I1" 0'- 2' J 4 15-0 4 4'-11' 4'-1• a'- 136' 6'-3' 1 5'i' 0'- 136• 4 4•-101 2'-6' ;N- 1W 6'-7 7-I0' a,- A, K 4 16'i' 4 51-5• 4'-5• a'- 11/4 6'-T 5'-10' 0'- IYj' 4 5'-4• 2'-6' a'- Y 61-T 3'-11" 0'- 2• L 4 17'-5- 4 5'-5' 4'-5' a,- 11/j' 6'-9" 5`0 0'- 1114' 4 5•-4' 2'-6' 8'- 2' 6'-T 3'-11" IN— 2' M 4 I6'-5' 5 5'-11' 4'-9' a'- 1%. 7'-2• 6'-1' B'- IV 4 5-10' 2'-G' a,- 2A. T-2' 3'-1111 a-- 2H6' N 4 I8'-5- 5 5'-I1' 4•-9' a'- IV T-2' 61-P a'- IV 4 Trill- 2'-6' 0'- 2%. T-2' 3'-11" 0,-2%. 0 4 IT -6 5 6'-V 5'-2' a'- 1 . i6 T-8• 6'-V O'- 1 . 1i 4 6'-4' 2 'i' a'- 2 ' i6 7'_ . 8 T_ " ll W- 0 . 36 P 1 20'ix• 6 6'-11" 5'i' B'- IVH'-2' 6'-T 0'- IV 6'-18" 3'-0' a'- 2S6' 6-2' 4'-5' t 0 2A. 0 4 21'-6' 6 6'-I1" 5'-6• 0'- 1%. 8'-2' 6'-T 0'- IV 4 6'-IB° T-0' Jr-2%. 8'-2' 4'-5' er- 216' R 7• 5 6'-S' 5'-1' 0' 1)(' 7'-9' 61-T 0'- 11P 4 7'-4' T-0• a'- 2%' 8'-8. W-5' 0'- 21/4' S 7' 5 6'-ll" 5•-6' 0' IN' B'-2- 6'-IB' el- lib' 4 7'-10• T-B• 0'- 2Yj' 9'-2' 4' 5' a'- 2W T T 6 6'-11" 5'-7• a'- IV 8'-2• 6'-10• B'- IV 4 7'-10' T-0' 0'- 2V 91-2• 4'-5• 0'- 2%' U -9• b T- Y 5 '-9' B'- 1' % 8'-5' P -0' 0' - t ' 7/e 4 B'-4' 3'- ' 0 0'-2 ' Y4 T- • 8 4'- ' 5 a'- 2' Yt Y -10' 6 7 5'-5' 0'- Y 8'-I0• 6'-8' 0'- 2' 8'-10' 3'-1' 0'- 2'16' 10'-2' S 0'- 2 ' 3(f W t75 -IP' 7 8'-W S'-9' a'- 2" W-3' 7'-0' a'- 2' 4 W-P T-1' Is- 21C 10'-61 4'-5' ;J- a, X -0' 6 8'-T 6'-4• 0' 256• 10'-6• 8'-Y 0'- 2j6' 5 I8'-4' T-7• a,- 2%, 12'-Y 5'-5' 0'- 2)6' T I' 6 9'-I11 6'-T a'- 11A' IT-2• 9'-0' 0'- 1%' 5 W-4- 4'-1" a.- 3• IT-8' 6'-5.1 a,- T Z 2- 6 le" 1, G'-IV 04- 2' 12'-5• T-1' a'- 2' 5 il'-le. 4•-1" 0'- 3- W-2' 6'-5" 0'- 3" AA3' IB 2 0' 2 12'i' i' 0' 2 1c 5 I2 1 0' 7 sc 1 6 6'-4' 0' 3 ' u 886' 1 _ II' 5' pJj. _ 0' 2 ' Yj i3 ._7. q•_ II _ 0' 2 SS S 13 ._q• q_« 1 _ 0' 3 " H6 _ 15'-8• _ 6' 5" _ 0' 3 ' 3f CC 4 -T 7 II'-10' B'- 2%. 14'-1• it 0'- 216' S I3'-!0' 1'-1" 0'- 3'/i' 19 2- 6' -5" 0'- !'/a DD 5 35'-T 7 ll'-10' B'-2' 0'- 2Y:' LS'-1• 11'-Y 0'- 2i6' S t4'-4' 4'-T 0'- 316" 17'-8' 7'-11' Be 336' EE 5 36'-8' 7 IY-0' 8'-3' 0'- 246' 15'-T 1V-6" 0'- 2% S IA'-Hr 4'-7' 0'- 3W 18'-Y 7•-11' 0'- 3Y4' WF9-NN eq. a D a: 00 sloe 2016 ROAD & BRIDGE STANDARDS VVET-FCL AOOUT G CULVERT (WITH WING) \J LIVING REMOVED) DOWNSTREAM END) (UPSTREAM END( END ELEVATION JPSTREAM DOWNSTREAM BARREL LENGTH (OUT-TC-OUT END Z_ tY rF1LL SLOPE 6TOP "x6" FLLI _TOP OF SLAB HWI TI HWt 12" R UPSTREAM END MOTION& AT DOWNSTREAM END) 12" SECTION A -A (WITH WING) REINFORCING BAR CIE J�­ DIAGRAMS a F-� aHJ BHI 6" " PVC j-r-5y. DUNBELL WATERSTOP --1 1-TJ BCS-^T 6" " 6" FILLET •6 - HWI L CONSTRUCTION JOINT SECTION B-B PART PLAN (WITH WING) IWING REMOVED! [DOWNSTREAM END) (UPSTREAM ENO: REFERENCE SINGLE BOX CULVERTS "' ROAD AN BRIDGE STPNDAR05 STANDARD DETAILS REVISION OATS SHEET 2 OF 2 VIRGINIA DEPARTMENT OF TRANSPORTATION Will 100202 2016 ROAD & BRIDGE STANDARDS 2016 ROAD & BRIDGE STANDARDS WF2-AA 0 12'f = BB too a q loot. WFI I-NN eq. spa. 00 each corder of fOOtHhg A COPY OF THE ORIGINAL SEALED AND SIGNED DRAWING IS ON FILE IN THE CENTRAL OFFICE \VDnT WING DETAILS SREFERENCE fOAp AND BRIDGE STANDARDS -HEET 5 OF 8 REVISION DATE 2: 1 FILL SLOPE - TYPE 1 1007,05 01I12 VIRGINIA DEPARTMENT OF TRANSPORTATQN 3- 2016 ROAD & BRIDGE STANDARDS 111 - 0 slid, 0 I'-Y = R frorrt face 9" IY WY4 - u sPa. 0 fill = V Wv I back face back 0 back Sp0 9 back face WHS WF-serles FRONT ELEVATION WF6 - GC soo. 0 IY = IN but. W 7-JJ 2"WF3{ F s FS-EE s Cap 06'+RK too p 3 89"=FF 012"+DD to p WF4-N. aDo. =ADO Sig I ' wF8-NN eq. soot/ = 80 sld• j FOOTING PLAN W A COPY OF THE ORIGNAL SEALED AND SIGNED DRAWING AND DESIGN STATEMENT IS ON WING DETAIL 2: 1 FILL SLOPE - TYPE I VIRGINIA DEPARTMENT OF TRANSPORTATION p 12"1 BCW-21 Front face Permea5b drolnoge bye. WV2 III .M-,61-WV serles p'I��Ir�n 21. /z /z e � GTi P� 0 Sao. 0 12' = NO I 'ace I 1/11 : 12' buffer for winds % - EE T Wp Made form d4w'to i Id tubing M rewired. IY Prt r Ian r e o sled 6 tl a •Ne coin i connbc ed opa D De 7 n n Ta wo d 12 �1 a9 a outlet a rod a e. d g Y See Note Is rWF-serles' Y L . 3. WF6 eq. sod. 2016 ROAD & BRIDGE STANDARDS 2016 ROAD & BRIDGE STANDARDS END VIEW Z O T T HI I O a 1 ��� W 7 WFI( WFI TO WF3, FS TO W F WVI WV3 WV4 LL spa. TABLE A TABLE B TABLE C ' = MM Bar P:n and Dot. W411 Y Size Dio. Z Bar Srir1 Sdka Length A-W 9Yz" R3 2Y1' 4° 04 1'- q° tla 7" A'/x" K5 21_ 4n tl5 3B'4' W e6 2'- 7` 00•EE I'-7/ill 06 4'/t° fill W7 31- 3• tl7 51/4• 7" a8 W- 2" tle fin 8" W9 11 A" W9 9"Id/a" ROAD AND BRIDGE STANDARDS REV@ON DATE SHEET 2 OF 8 07/16 1007.02 FOR TYPICAL SECTION. NOTES AND OTHER DETAILS. REFER TO STANDARD BCS-DT. q Uor CGl F N m OUAN./LF HEADWALLS SPAN111IMT+ Z Y O V V o U y��QV1' 2 FFFFN -J G HWI FLLLLOJ W 20 Vdo peOCVI�JWJt �Z� Z Q N ryVl V JJr a6�O F2e O U [JJ V anIs Fat O a: FVI Q$N 2 i IQO� y2� Z J "I TI Zw 3 3 16.184 4 40D 55.206 5` 10' 6 5'-6" 1.038 33.044 1.042 33.044 A 3 4 1T.596 Q 449 51.804 5'-10° 6 5'-6" 1.131 33.044 1.134 33.D44 C 4 3 19.524 Q 490 61.054 6'-10• 6 6'-6" 1.161 39.052 1.169 39.052 B 4 q 20.93E Q530 6&673 b 10 E 6 6' 1235 79.052 .242 39.052 C 4 5 22.348 Q 579 73.399 6'A Or 6 6'-&. 1.328 39.052 1.335 39.052 E 4 6 23.T60 0. 636 90.283 6110, 6 6`15" 1.440 39.052 1.447 39.052 H 5 3 22.864 4643 81.426 7'-1ax 6 7'-6" 1.259 45.060 1.269 45.060 B 5 4 2427E 4 692 90.033 T-IW 6 T-ex 1.352 45.060 1.362 45.060 0 5 5 25.688 Q750 91374 T'-10' 6 7'-6" 1.444 45.060 1.455 45.060 F 5 6 27.100 Q 799 106254 7'-10" 6 7'{" 1.537 45.060 1.547 45.060 H S 7 28.512 (1818 123.095 71-10" 6 71-61 1.630 45.060 1.640 45.060 J 6 4 27.616 0,819 112 B41 B'-10" 6 8'-6" 1.43T 51.068 1.451 51.060 0 6 5 29.028 Q 868 II& 353 B'-Noll 6 8,4., 1.530 51.068 1.544 51.068 F 6 6 30.440 0.91E 129.740 B'-10' 6 8'-6" 1.623 51.068 1.636 51.065 H 6 7 31.852 Q 965 144 111 B'-Noll 6 B'-fill 1.715 51.068 1.729 51.068 J 6 8 33.264 1.045 156235 B'-10" 6 8'-6" 1.808 51.068 1.822 51.C66 L 7 4 30.956 4 987 141621 91-IO 6 9'-6" 1.512 57.076 1.529 57.076 D T 6 33.180 1.084 161.807 Trion 6 91-6" 1.698 57.076 1.715 57.076 H 7 8 36.604 I. 101 Is&02 9'-10° 6 9'i" 1.883 5FO76 1.900 57.076 L 7 10 39.428 1.453 266 363 9'-10' 6 9'-6" 2.032 57.076 2.049 57.076 P 8 4 34.296 1.206 15% 065 10'-10" 6 10'-6" 1,590 63.084 1.611 63.004 E 8 6 31.120 1.310 17CL 663 10'-1 Cr 6 10,61, I.T73 63.084 1.794 63.084 1 8 8 39.1344 1.412 2362A8 10'-10' 6 1016. 1.959 63.084 1.979 63.084 M 8 10 42.768 1. 690 Z96216 1a'-10° 6 101-611 2.107 63.084 2.127 63.084 0 9 4 37.636 1.421 IB6 129 11--10' 6 11'-6" 1.642 69.092 1.666 69.092 E 9 6 40.460 1,519 197.639 1P-10' 6 III-S. 1.829 69.092 LSSI 69.092 1 9 8 43.284 1.615 211 T49 I V-10' 6 11'-V 2.013 69.092 A03T 69.092 M 9 ID 46.108 1.051 3M 193 II'-10' 6 111-6" 2.162 69.092 2.185 69,092 9 9 12 48.932 2.201 425. Y3 II' - I Or 6 1,'-6" 2.202 69.092 2.224 69.092 U 10 4 40.976 1.621 231.746 12'-10' 6 12'-6' 1.691 75.100 1.718 75.100 E 10 6 43.800 1.736 24A 4" 12'-10' 6 12'-6" 1.872 IS.100 1.899 75.100 1 10 8 46.624 1.848 2% 723 12'-ID' 6 12'-6- 2,054 75.100 2.081 75.100 M t0 ID 49.448 Z. OBI 395. 181 12'-10' 6 12'-6" 7.194 15.100 2.221 75.100 O 10 12 52,272 2.461 461231 12'-10' 6 12'-fill 2.23E 15.100 2.262 75.100 U 12 6 50.4B0 2. 221 32i 329 la'-I0' 6 19'-fill 1.953 87.11E 1.987 87.11E J 12 8 57.304 2. 527 3aS 451 la'-10' b Id'-6° 7.138 87.116 2.172 87.116 N 12 10 56.128 2.523 431.964 14'-10' 6 1!11. 2.287 87.116 2.320 87.11E R 12 12 58.952 2.942 57A 328 l4'-10' 6 14'-6' 2.}2T 87.11E 2359 8T.116 Y A COPY OF THE ORIGINAL SEALED AND SIGNED DRAWING 15 ON FILE IN THE CENTRAL OFFICE SINGLE BOX CULVERTS 30 TO 40 FT. FILLS VIRGINIA DEPARTMENT OF TRANSPORTATION BCS-40 ROAD AND BRIDGE STANDAROY REVISION DATE SHEET 2 LF _ 07/11 1002.4 304-2I BOW_?' WING WALL DIMENSIONS Na WEEP HOLES FOOTING BAR SPACINGS J Ill 92 LI L2 N NI N2 WFI WF2 WF3 W yF10 -0 WFS WF6 OF? LL AIM AA Be CC DO NN 00 EE FF GG HH JJ KK A 1.-&. 41-0• I'-6" I'-C• I'-O" 7'-0• 4.-B' 3'-0 - 3 2'-6• - 6 6'-O' 1 0'13. - - 6 BID- - a I._6« 4.-0. I._Niv I _0. O" a.-O. q•_B. 3._0. _ 3 2.-6. _ _ 7 T._0. I 0._B. _ _ 7 7._0. _ _ C I'-6" 5'-0' I'-9" I'-0' I'-O" 9'-0' 4'-0' 3'-0• - 3 2'-6' a B'-0• I O'-8' - - a B'-0• - - D L_6« 5'-6' 2'-0' I'-0' I'-D" 10'-O" 4'-6• 3'-0• - 3 2'_S' 9 q._O. 1 O.-S. _ _ 9 q._O. _ _ E I'-6" 6'-0" 2'-0. I`-D' 1'-0.. 11'-0" 4'-6• 3'-0' - 3 2'-6• - - 10 10'-O• I O.-S. - - 10 I0.-0" - - F 1'-6" 6'-b" 2'-0. 11b• 1'-0" 12'-O" 4'-W 3'-0' - 3 2-6' - II II'-0' I 0'-B' - - II 111ro' - - G I' -fill ]'-0' 2 -3' I '-0' I'D- 13'-0' 5'-0' 3'-0' - 3 2'-6• - - 12 12'-0' 1 0'-8' - - 12 12'-0' - - H '-fill •-6 2'-3° I'-0' '-O" 14'-0° 5'-8• 3'-0' 3 2'-6• _ _ 17 3'-0' O'-8' 13 13'-0' I I' _ w 6 _ . 8' O _ u 2 ' 6 I '-0 I - I' 0" I '-0' 5 5'i 1 3'-gl' _ 3 2'-6' I 1 ' 31 9 _ . 9 ' 0 I _ . O' 8 e 4'-6' 14 - I 14' O - _ J I' -fill B'-6' 2'-fill 1'-0• 1'-0- 16'-0" 5'-w 3'-0' - 3 2'-a- I t'-0' 9 9'-0' 1 O'-8' 7 5'-3" 15 IS'-0• - K _ 1' fill 9'-0• 2'-9" I'-0• _ I' 0" 7• 1 roll 6'-0' _ J' 0' _ 7 2'-6' l 1'-0' 10 10•-0' I _ O' B' T _ S' 3" 16 _ Ili' 0' _ _ L I -6 9 -0 2 -9 I-0 I -D° I 8-0 P 6'-0 3 '-0' 7 T -6• 1 1 '-0' I 0 I 0 -W I O -e B 6-0 n I T I 7 -O M I' -fill 10--0- 3'-0' I1-0' 110. 19'-0" 6'-V 3'-0• - 3 2-6' 2 2'-0' II II'-0. 1 O'-8' 8 6'-0" IB 18'-0' - - N I'-6" 10'-6" 3'-6" I'-0• I'-0" 19'-0" 61-6' 3'-0' 3 2'-6• 2 2'-0' II II'-0• I O.-S. B 6'-0" IB 18'-0' I 11'-0' J'-fill I I'-0" 20'-0" T-0' 3'-0• I 7 2 2 12 12'-0• I 8 B 6'-0" 19 19'-0• - - P 1'-6" 11'-6• 319" 1'-O' 1'-0. 21--D" 7'-0• 3'-6• 1 3 2'-6• 3 3­11' 12 12'-0' 1 O.-a. 10 716• 20 20'-O" - - 0 1'-fill 12'-0' 3'-9. 1'-0• 1'-0., 22'-0" 7'-V 3'-6• 1 3 2' 6• 3 3'-0• 13 IS'-0• I O'-8. 10 7'-G' 21 21'-0' - - R 1'-6" 121-6' 1'-a. 1'-0• I'-," 23'-0" 8'-0' 3'-W 1 3 2'-6• 3 3'-0• 10 10'-0• I O'-8• 9 6'-9' 22 22'-0' 8 A'-D' S I' -fill 17`­0" 4'-0' 1.-0. I'-0" 24'-0" 9'�i' 3'$' I 3 2'-S ♦ 4•-0• II II'-0' I O'-B' 4 6'-9' 23 27'-0' 8 4'-0' T I' -fill 13'-6- 4'-3- 1'-0- 1'-O" 25'-O" a'-6• 3'-6' 2 3 2'-6• 4 4­0• 12 12'-0' I 0'-B' 9 6'-9' 24 24'-o- 8 A'-0' U I' -fill 19'-0° 3 I -0' 1'-0" 20'-0" -0 3'-6• 2 3 2•d• 0' 12 12'-0' 1 O'-8•9 6 -9 25 25 -0• 10 510 I4-6 4-6 2T-O 9' -6 3-6 2 3 2'6• 5 5- 10 I0 O-8 I3 9-9 ' 26 26'-0 I0 .v 5' 0 W I -6 15 -0 6 I-0 1.-0. 28 -0 10' ID 3'-6• 2 3 5 5'-8' 1 1 I I -0 I O -9 I7 9 -9 2T 21 -0 I O 5..0. X 1'-9" 151-6' "El. I'-3w. I'-I'A. 29'-0" II'-0' 4'-0• 2 1 3'-4• 5 5'-0• II 11'-0• 1 0'-1 V 13 9'-9" 28 28'-0• 12 6'-0" Y 2'-0.. I6'-0" 4'-9" I' -A- I'-I'/s 70'-O' 12'-0' 4'-151 3 4 3'-4• 6 6'-0- 10 10'-0• 2 O'-7• 17 12'-9• 29 ?9'-0' 10 5'-D• 2 2.-on 16'-6° 5 / s I ' 1 . / ] roll 12'-S' 6 3 3 0 10 I01-0' 2 O 1T 12' '-9 70 U 12 2' O" I '" 13'0• 6• 0 ' ' O '9' 31 31'0' 12 BB 2'-0- T-6• 5'-3" 1'-A1's" I'-II/i 33'-O" 1 14'-0' 4•-B. 3 4 3'-41 a 1e'-0 12 12'-0' 2 O'-7• T 1219' 32 32'-0• 12 6' -0" CC 2'-0u IB'-0° 5'-3" 1'-4Yi' I'-11/4' 34'-0" 1♦'-6' 4'-6' 3 4 3'-4- 9 9'-O- I! 13'-0• 2 O'-7- IT I2'-9- 3J 33'-0' 12 6'-Ou OD 2'-fill 18'-6' S'-fill V-4e/q" I'-I�74' 35'-O" 15'-0' 5'-0' 4 5 4--2" a 8'-iP 12 12'-0• 7 EE 2'-6" 19'-0" 5'-fill I'-4;"i' I'-I}6• 36'-0" 15'-6' 5'-0' A 5 4'-2" 9 9'-0' 12 12'-0' 2 0'-10" IT 12'-9' 35 35'-0• IB 9'-0' WFI WF2 WF3 WIRE SIZ o LENGTH 6u 511E LENGTH Eo SILE PGTH FROM TO VARY BY FROM VARY BY FROM TO VARY BY FROM TO VARY BY A 4 6'-5• 719° 2 A _-2' 8'-2' - 2'E' 9'$' - 2 4 3•-5' 2'-6' 0'-116' 4'-T 3'-11• 0'-11(' 8 4 T-5' BST 2 e F-9' 9'-5' 2 '-9' 10'-T 2 1 3'-5' 2'-6• 0'-1 Yz I'-T '-1 • 3 I 0'-1 C q _ B' Y 9'-9" 2 4 _ I' 8' IB'-0' _ T-0' _ 12' B" _ 2 4 3'-5' 2'-6' 0'-i q_q. _ 7 11' Ii 0'-i D 4 9'-5' I0'-9' 2 4 4'-5' 4'-5' - 5'-9' S'-T - 2 • 3'-11' 2'-6• 0'-13L' S'-3' 3'-11' 0'-lib' E 1 10'-5• II'-9. 2 4 4•-I1" 4•-11' - 6'-3• 6'-3' - 2 4 3'-I1' T-G' 0'-IV 5'-3• T-il' 0'-IV F 4 11'-5' 12�9' 2 4 5'-5' 5'-5' - 6'-T 6'-T - 2 4 3'11' 2'-6• 0'-Ih' 5'-3' T-11' 0'-I*' G 4 - 12' 5' 13'-9' 2 4 7'_ • 6 7•_ 6 _ 8'-l1' _ B' ll' _ 2 A 4•_ . 5 _ 2' 6 0'-1 1L _ 9' T _ 3' il' _ 0' 1 ' H 4 13'-5• IA'-9' 2 4 R'-]' 8'-2' 9' i' 9' -6' 2 4 4• -5' 2'-6' 0'-! ii 5'-T 3'-11• 0'-1 7A iG I 4 4•_ 1 5' IS'-9' 2 4 9'-11" 3'-II" _ 6' B' _ II' T _ 5' 7 _ 6' 0' 2 4 4• -0' _ 2' 6• _ 0' 2' _ S' f' 3'-10' _ 0' Y J 4 _ 15' 5• 16'-9' Z q 10 ._7. q._ � 2 6 ._q i6 11'-II' S ,_7. 6 4 0 % 2 4 T-11• - 2' 6• 0'-1 i6� - 5' 3' 3'-70' 0'-i ' R 4 16'-4 T- ' I 9 2 4 l2'-2' 6'-6' 5'-8' 13'-6' ]'-IB" - 5' 8' 2 4 I'- ' 3 2'i' B' 2 I. A 5'- ' e T-11• 0' 2 i. / L 9 7'- ' 1 5 - IB 9' 2 4 12'-11' 6'-11 6'-B• 4'- ' I 3 - B' 7 6'-0' 2 1 1'-3' 2 •-T 0'-2• 5 '-7' 3'-11' B'-Y M 4 18'-5' 19'-9' 2 4 14'-4• 3'-5' T-556' 15'-8' 4'-10" 5'-5%' 2 4 4'-T 2'-7• 0'-21/i 5 =!V 3' !1' 0'-Z%' N 4 IB•-5• I 9'-9' 2 4 14'-4' T-5' 5'-5' /4 i '-8' 5 4•-I " 0 5'-5 ' :� 2 4 4'-0• 7 '-7' 9'- 2 :t S'-:1" 3'-:I• 0'-2 ' s6 0 4 19'-5' 20'-9' 2 q 15'-8' 5'-8' S'-8' IT-0' 7-0' 5'-9' 2 4 5'-B' 2'-7' 0"-296' 6'-4' 3'-A' 8'-2i6' P A 70'-5" ZI'-9' 7 4 19•-T' 3'-4' 5'-7 ?0'-5• r-0' 5'-3• 2 4 5•-3' T-0' 0'-2%' 6'-B' 4'-4' 0'-2%' 2B'-B' 3'-6' S'-6' 21'-5' P-li' S'-6' 2 4 5'-4' T-0' e'-2Ye' 6'-8' 4'-4• 0'-216' R A 22'-5" 23'-5' 2 4 21.-1. 5'-9' 5'-IY 22'-V 7'-Y 5'-lj' 2 4 4 -11' T-0' 0'-2h' 6'-4' 4'-A' S 4 23'-5' 24'-9' 2 4 22'-2' 3'-0' 1'-9Yj' 23'-T 4'-4• 4'-91/z• 2 A 5'-4' 3'-0' B'-216' 6'-8' P-4• 0'-2V T 4 1• « 2 3 _ 25' 9' 2 q _ 2T 2' _ 3' Y 5•-0' 2 4 5 '-/' - T 0' 0' 2 S4 6 '-9' /'-4' 0'-2 94 I U 4 25'-5- 26'-9• 2 4 24--2• 5'-7 4'-B il' 25 •-T 6'-8• Y-0 ' 11 2 4 5'-6' 3' BY 0'-2 ii b'-N" 4'-4• 0 '-2 . V 4 26'3" T'- ' Z 9 2 4 - ZS' J' 2 '-9' 4'- ' 6 - 26' 0' 4'- Y 0'- ' b 2 4 5'-2' - 3' 0' B'-2 ' - 6' T 4 '-4' -V. 0' 2' w 4 2 ill 7' 28'-9• 2 4 26 '-4• 4•-9' 4'- 3 1'. 7'- 2 B• - 6' Y 4'-3 ' 16 2 A 5'-6' - 7 0' - 0' 2 % 6'-il" A ' 4' - 0. 2 Ye % 4 2 8'-5" 3 '-3' 0 2 5 26 '-a' Y-3' 4'-I ' 1{ 2 7`0 7'-[' 4 1 " A 2 5 - 6' 2' T- ' 6 8 '-0' e'-8' 5'-4• 0 '-7 r 4 29'-5" 31'-9' 2 5 29'-I' 5'-1' A' -a• 31'-4• 4-8' 4-0' 2 5 61-6' r-0' 0'-3' B'-10' 6'-4' H'-7 2 4 30'-9' 32'-9' 1 5 3B'-Ix 2'-11' 3' 10 1. h 32'-5' S'-7 3'-10 Yz 2 5 6 •-T 4'-0' 0'-3 ' - 8' 11' 6'-a' 0' 3 I" All 4 3T3' 33'-9• 2 5 31'-1' A'-9' 3'-9 Ya 33'-S' ]'-0' T-9 ' Ya 2 5 '- i• 6 1 4'-B' 0'-3 Y2 9'-7 6'-4' 0'-3 " Yj 88 4 32'-5' 74'-9' 2 5 32'-1" 4'-1' 3'-5 • 39'-5' 6'-T 3'-5 2 5 ]'-5' 9'-0' B'-7 ' 9'-T 6'-4' 0'-7 " 'h CC 4 33'3' 35'-9' 2 5 33'-ill Y-6 3'-416• 35'-5• A'-10' ]'-a}'1' 2 5 T-70' 4'-8' B'-3Yj' I0'-2' 6'-4' B'-3y1 OD 5 34'-5' 37'-81 2 5 32'-II' 4'-11' T-6- 36'-3' W-3' T-G' 2 5 7'-II4 4'-6' 0'-3'/r" W-3° 7•-10' 0'-3%t' EE 5 35'-5' 3B'-8' 2 5 33'-11' T-1' 3'-5%' 37'-3' 6'-5' 3'-5Ye' 2 5 e'-0' 4'-6' 0'-3Y2• 11'-4" 7'-I0' 0'-3W' A COPY OF THE ORIGINAL SEALED AND SIGNED DRAWING IS ON FILE IN THE CENTRAL OFFICE A COPY OF THE ORIGINAL SEALED AND SIGNED DRAWING IS ON FILE IN THE CENTRAL OFFICE XVDOT ROAD AND BRIDGE STANDARDS WING DETAILS 2: 1 FILL SLOPE -TYPE 1 VIRGINIA DEPARTMENT OF TRANSPORTATION SPECIFICATION SPECIFICATION WING DETAILS 2: 1 FILL SLOPE -TYPE VIRGINIA DEPARTMENT OF TRANSPORTATION ILIT 90A0 AN`BRDOGE STANDARDS SHEET 3 OF 8 REVISION DATE 07/12 <EvI510N GATE 07/12 SHEET 4 OF 0 1007.03 1007.04 STEM BAR SPACINGS Willi WV2 WING WVI 0 P WV2 Q R INV3 S T WV4 U V WHI IN X WH2 Y Z SIZ o FROM TO VARY BY LENGTH FROM TO VARY BY SIZ LENGTH FROM TO VARY 81 A 6 6'-O' 5 GI - - - - - - 1 11-3- 4 4'-Ili 2'-9' ll* 4W 6-10' 41-8' 0'-41S' 4 4'-1 I" 2'-8' 0'-5W, 9 7'1-0.6 6 - _ _ I 0'-6' I 4 ^ 1 3 5' 5' 2' 9' 0 /z 8 ._ 1 « 0 /7 A 5' S" ?.-1. 0' Ss/s" C a B.-O. 6 71-V _ _ _ _ I Pro. I P-Y 4 Sir I1• 310" 0'-4%' 7'-10' 4'-11" O'-43V 4 5'-il" Y-2' O'-5V' D 9 9'-0' 7 8'-9' - - - - - - 2 2'-6' 4 6'-11' T-3' 0'-4V 9'-10' 5'-2• 0'-4•V 4 6'-Il' T-5' E 10 1O'-W B 10'-0• - - - I 0'-T 2 2'-6" 4 6'-II' 3'-3• 0'-4V 8'-10• 5'-2• 0'-4%" 4 6'-1 I' T-3• 0'-5V F I I I P-W 9 W-3• - - - - 1 I'_7 2 2'-6- 4 7'-5' 3'-3• 0'-4'/z° 9'-4' 5'-2' O'-4Ye 4 T'-5" 3'-2- 0,5%.. G 12 12'-0' 10 I2'-6' - - - - 2 P-9" 2 2'-6" 4 7'-1P 3'-G' 0'-4%. ElL to- 5'-5' O'-4W1 4 7'-1I" 3'-41 O'-SYi' H 13 13'-0' 10 1 - - - I - I' -Of. 1 3 1 3'-9. 4 8'-5' 316' 0'-4Yz" 10'-4' 5'-5' 1 0'-4YT° 4 e'-5" 3'-8' 1 9 9'-0' 11 13'-T 6 4'-6" - - 2 I' -fill 3 3'-9" 4 6'-II' 3'-t• 0'-4}6" 8'-9" 5'-6" 0'-4$" A 8-111. 3'-1 a, 0'iY7" J 9 9'-0' 12 I5'-8' 7 5'-7' - - 2 2'-T 3 Y-9" 4 T-V T-8• 0'-4'/z" 8-I1i 5'-7' O'-Vil" 4 91i" 3'-9. 0'iw" K 10 101-0• 13 16'-7' 7 5'-3" - - 1 1'-3" q 5'-0° 9 T'-7" T-I I' 0'-4;6" 9'-6' S'-10° 0'-47/q° 4 L 10 10'-(P i4 17'-6° B 6'-0• - - 2 I'-9" 4 5'-0' 4 P-9" 4'-0" 0'-4Yz" 9'-8" 5'-II' 0'-4Yz" 4 10'-5• 3'-10" O'ii6" M II 1 P-0" 14 17'-6' a Biro' - - 2 2'-3" 4 5'-0' 4 W-4" 4'-3• 0'-4%' 10'-3' 6'-2" 0'-4%" 4 1011 I' 4'-5' 0'-S, N I I 1 I'-0' I l T- « 1 6 0 - 6' 0' - - 3 2'-T 4 5'-0° 5 - 8' 10' 4'- 9 14 0 �'j - 10' 9' - 6' 8" ._4 0 7/e' q _ I I' S' 4._ I I 0'-5Yz" 0 12 12'-0" 15 18'-9' 8 6'-0' - - 2 2'-CP 5 6'-3' 5 9'3" 4'-9' 0'-4'/z" II'-3' W-8u 0'-4Yz« 4 II' -I If 4'-10' P 12 12'-W 16 20'-0' 10 7'-6" - - 2 2'-6" 5 6'-7" 5 9'-7' 4'-10" O' V, II'-3' B-9" 0'-4$^ A 12'-5" 5'-8' O'iYi' 0 13 U'ro° 17 21'-T' 10 7-6" - 3 T-0' S 6'-3° 5 9'-9" 9'-Id' 0 4 h I I'-8' 6'-9" 0 A /7 A 12'-II' A' -I I' 0'i ' 3'e' R I 0 10'- 0' 1 8 22 '-6' 9 6 '-9" 9 4' -0' ] 3'-fill 5 6 '-7° 5 9' -0' S'- ' I 0'-4 ' i6' I'-9' 0 T '-0" 0'-4 " i'e 4 13'3" 5'- ' I 0 S « /: S II I I'ro" 18 221-6• 9 6'-9" 8 4'-0" 3 2'-T 6 7'-6" 5 9'-Y 5'-1' 0'-4Y2" II'-2' T'-0" 0'-AY2" 4 13,11- 5'-5' O'-5V' T 12 12 '-W 19 23'-9• 9 6'-6' 8 4'-0' 3 3'-3' 6 7'-6° 5 9'-9" 5'-1• 0'-4Tfj" II'-T 1'-3' 0'-4}6° 9 I4'-5" 5'-T ❑ 12 12'-0' 20 25'-0" 9 6'-9" 10 5'-0" 3 3'-9- 6 7'-6° 5 9'-1Or S'-4' 0'-4Yz' IV-9. T'-3' 0'-4'/z° 4 14'-I I' 5'-6' O'-SV- V I 0 10'-0" 21 76' 3' I 3 9' 9' I 4 5' 0" ! ]' O' 8' 9° 5 9' 3" 5 0 36 I 3' I T'-6° 0' 4 Y6 9 I 5' 5" 5' 8' 0 5 7 W I I I '-0' I 2 2 27s-6' 1 3 9'-9" I 0 5'- " 0 3 3'-fill 7 B'-9" 5 9'-9" 5'-T 0' 4 / z II'-8' T'-fill 0' 4 / t A IS' -I I S'-T 0'-5 ' s%' X II 1 1'-0' 22 27'-6' 13 9'-9" 12 6'-0' 4 4'-0' 7 8'-9° 5 10'-2• 6'-1' 0'-4%' 12'-1• 8'-0" 0'-4%x 4 16'-8" 6'-5' Y 10 10'-0• 23 28'-9' 17 12'-9" 10 5'-0" 3 3'-3" B 10'-0• 5 10'-1' 6'-4' 0'-4Ys' 121-0' 8'-3' 0'-4Yz" 4 I7'-5" 6'-T O' SV- Z 10 10'-0" 24 30'-0' I7 12'-9" 12 6'-0' 7 3'-9' B 10'-0' 5 10'-4• SO-7' 0'-4V' 12'-3• B'-6" O'-4 , 4 I7'-II' 6'-9' O'iYi' A A I I 11'-0" 25 31'-3' I 7 12'-9" 12 - 6' 0• 4 4._ . 3 8 10'ro• 5 _ 10' 9' 6 ._7. 0 �ql. « /i _ 12' 9' 8'-6" 0 9 /T 4 1B'i" - 6' 8' - 0' S ' s/e' Be 12 12'-0° 26 32'-6' 1 7 12'-9" 12 - 6' 0' 4 4'_ 1 9' B 10'-0' 6 _ II' 3" _ 6' Noll '_4 ' 0 b6' IJ '-4• B'-Noll '-4 0 ;6 4 _ 18' II' _ 6' Noll 0'-5Y2' CC 13 13'-0" 26 !2'-6' 17 12'i" 12 6'-0' 4 4'-0" 9 II'-3" 6 I'-9" 6' -ID" 0'-4Yz" Ili-9' B'-ID° 0'-4Y7 4 19'-5° i'4' 0'-536" DD 12 12'ro" 27 3Y-9' I7 12'-9" I6 B'-0" 4 4'-6n 9 11'-3" 6 12'-1• T'-7• 0'-43/6" N'-I' 9'-T• 0'-ag" A 20'-5' T-Noll 0'-5'//' EE 12 12'-0' 28 35'-O° I7 12'-9" IB 9'ro" 4 5'-0" 9 11�3' 6 12'-I° T'-T 0'-4Yz" U'-I' 9'-T O'-4Yz° 4 20'-I I' 7'-9' O'is/6" 2016 ROAD & BRIDGE STANDARDS WV3 WV4 WHI WH2 IS a LENGTH d LENGTH SIZE LENGTH Ea SINE LENGTH SIZE LENGTH ICING SIZE FROM TO VARY BY FROM TO VARY BY SIZE FROM TO VARY BY FROMI TO I VARY BY FROM TO VARY 8Y . EA A _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4 6'-6- 2 4 W-ox 2'-T 3'-/'/d 2 4 6•-I I" B _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4 P-6• 2 4 5'-9' V-6- 3'-2'/2' 2 4 8•_I' C _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4 8'-6' 2 4 6'-0' 2'-7' 3'-F/� 2 4 9'-1• 0 - - - - - - - - - - - - 4 T-6• 2 A 9'-1• 2'-6' 3'-]'/i 2 4 10'-1' E _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4 10'-6• 2 4 T' ll' 2'-y' 3'-4'/! 2 4 11'-,' F - - - - - - - - - - - - - 4 II'-6- 2 4 T-1- V-6- 3'-7Yi 2 a 12'-4• 6 _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4 12'-6' 2 4 T-4' 2'-7' 3'-q1/,, 2 4 131-4' 1 4 B'-11' V-3' 0'-31/i 0'-10 9'-2' 0'-31A. - - - - - - 4 14'-6• 2 4 12'-T' 2'-T• 3'-A'/s• 2 d 15'-6' 4 5 T-Ili 8'-0° 0'-w.' I P-10• 9'-II" 0'-3'/P - - - - - - _ A 16'-6• 2 4 16'-0" 2'-T' 3'-4'/e' 2 4 1V-6' L 5 10'-5• W-2• M-.A/K' 12141. 10'-1" 0'-3%. - - - - - - 4 W-6' 2 4 IS'-9' 2'-7. 3'-0Yi 2 4 le.-S. V 6 10'-Il' 8'-B' O'-31/4' 12'-11' 10'-9" 0'-3'/.' - - - - - - _ 4 18'-6• 2 4 16'-0' 2'-7' 3'-4Yj 2 4 19'-9' N 6 II'-S' 9'-Y 0'-3 /� 13'-5" II'-3' 0'-T ." / - _ - _ _ _ _ d IB'-6' 2 4 16'-0° 2 '-7• 7 '-ill /e 2 4 19'-9' 0 6 II'-11. 9'-8' 0'-3'/a' 17'-11° II'-8' 013%. - - - - - - _ 4 IT-6• 2 4 19'-0" 2'-6" 3'-T%a' 2 4 20'-T' P 6 12'i" 91-81 0.-3114 14'-5" II'-B• 0'-31/i - - - - - - _ 4 20'-6" 2 4 IT-3- 2'-T' 3'-4/a 2 4 21'-1 P 0 i 12'-1 l' 10'-1" O'-3V 15'-0' 12'-3• 0'-3$" - - - - - - - 4 21'-G' 2 4 19'-0" 2'-6- 1-3%' 2 4 23'-W R 6 1 P-9" 9'-2' 0'-3'/i 1318" 1V-2' O'-3'/, 0'-1'/i 4 S 6 IZ'-2" 9'-7• 0'-3%' 14'-2" II'-7• O'-33/A" 6 13'-11" 12'-5" 0'-21/4" 15'-Ili 14'-5• 0,2l/i 4 2".. 2 4 221-5• 2'-7• 3'-3%. 2 4 25'-2- T 6 12'-8" ID�2" 0'-3'/i 14'-B" 12'-2' 013'/i 6 N'-5" 12'-II 0�Y/ell 16'-5' 15'-0" D'-N/� 4 24Vr' 2 4 22`11' T-1- 3'-4'/i 2 4 26'-2" U 7 12'-9" 10'-3° 0'-3S/' A 4'- I 10' - 12' 9' 0' 3L' /w T 4'- I I I' - IT 0" 0'-Y " /1 7'- ' I 0 1_ 2 0-2 /4 4 25'-6' 2 4 22'-5' 2 '-T' 3'-3 "'/8 2 4 T'_ ' 2 3 Y 7 L" I 3 7 9'-8• �_ 1. 0 3 /4 IS'-5" II -9' ._ 1 0 3' /4 I S'-5" I n I 3 7 0'-2 " /s I 6 I 5'-8' ._ 1 0 7 /e 4 26�6' 2 4 26'-0' 2 3'-4 ' /s 2 4 28'-3• q 7 _ 13' T' ID�I" _ 0' 3 Y4 y_ I 10' _ 12' 2' _ 0' 7 1'e 7 _ IS' I I' q_ I 0° _ 0' 2'/" _ IB' 0' _ 16' 2' 1. 0 2/ , 4 7 2 '-6' 2 4 _ 25' 9' 2'4" _ 3' 3 i 3' 2 4 _ 29' S' x 7 14'-2' 10'-6° 0'-3'/{ 16'-3" 12'-8' D'-3'/4° 7 16'-B" N'-5" 0'-2/4" IS--9- 16'-7' 0'-2'/a 4 2"' 2 4 26'-O" 2'-7• 3'-4Ye 2 4 30'-5" Y 1 I5'-3" 10'-6" 0'-3V [P-4-1 12'-1• O'-3V 7 1 V-Su 15'-6" 0'-2'/� I9'-b' 17'-8' D'-21/i 4 29'-6' 2 4 29'-0" 2'-T !'-3-Y I 2 4 311-6u 2 T 151-5.. 1018" 0'-31/4 IT-6" 12'-9' 0'-3'/� i 17�11' IS'-8" 0'-2'/e 20'-O'li'-10. O'-2Ve 4 301-6" 2 4 29'-3. 2'-T 3'-11/e' 2 4 32'-7• nn 7 I5'-I I' - I I' I' - 0' 3 �B - IB' 0' - 13' 2' 0'-7 1{I T - IB`5" I6'R" 0 2 < / 20'-b" - IB' T 0 2 /4 4 31'-6' 2 1 29'-0^ 2 '-7• !'-3;'/ 2 / 73 '-1' 58 8 16'-5' W-8' 0'-31/4' I8`-P 1T-1 U' 0'-3'/." 8 1a'-I I° W-8" 0'-2'/ell 21'-I' IB'-11 0'-2'/a' 4 32'-6' 2 4 29'-3' 2'-T 3'-1'/e' 2 1 31'-n ::C a 16'-I1i 12'- P 0'-3% 191-1- 141-4- OU3V 8 19'-Su Tut" 0�2A 21'-T 19'-4' 0'-2'/.i 4 33'-6' 2 4 32'-4• 2'-T' 3'-3�`f 2 4 35'-10" ]D 8 17'-2" 12'-5' 0'-71/i 19�1" 11'-1• 0'-3'/i B 20'sa' ITS" 0�21/e" 22'-P 19'-8' 0'-21/e 4 34'-6' 2 4 R'-7• 2'-8' J�4• 2 4 36'-10" EE 8 IT-3" 12'-6' 0'-3%' 19'-6" W-8' 0 3%' 9 20'-11" IT-6" 0'-2'/4" 2]'-A' 20'-0' 0'-2'/i 4 35'-6' 2 a 32'-4' 2`7' 3'-31'i 2 4 37'-1V SIC llrA R. LINS'2, • -i Lic. No. 035791,n pow 3/12/204 ti'SrONAL ECG` (n F z Z w w 2 2 O OU U Z O) J Z Z O O CC U U on to N on Z Do < 00 N Z •--I N O� O Q � a � W w z z a z w w LLJ w W OR CY ti W N T m N C3 \ N \ H m L9 z r Co JIM rwt 1 5 N T� V/ N N \ 1 Twoolowel LlTwoolowel J J � Ul > J_ v J Q UJ JO LU LU 7 1 Z< W WX U Ln0120 eessss-si LU W z mow/ r� - "' eweeeee� 1osessessel IIIJ w IJLL i Q (DO 0 O N O ,^r' 0M J IJ ~ w W O W d = [L In JOB NO. 182150 SCALE NONE SHEET NO. 16 Section 5. Stormwater Management Plan (Provide a reduced 11x17 copy of the latest stormwater management plan. Do not reference only.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County PRE -AND POST- DEVELOPM ENT SUBAREA AND OUTFALL SUMMARIES STORMWATER MANAGEMENT NARRATIVE: WATERSHED SUMMARY FOR SUBAREA 1 Post -Development Impervious Area Summary OVERVIEW Subarea 1 � T Q Area 1-year Flow, 2-year Flow, 10- ear Flow THIS PROJECT IS PART OF THE BROOKHILL DEVELOPMENT, AND STORMWATER CN � y � y � Y � Roads &Sidewalks 45,825 sf Pre-Dev. Subarea Post-Dev. Subarea Method of 9VAC25-870-66 Method of 9VAC25-870-66 Method of 9VAC25-870-66 Method of 9VAC25-870-66 TREATMENT IS PROVIDED TO MITIGATE THE IMPACTS FROM THE PROPOSED ac. cfs cfs cfS Point Of Interest Point Of Interest Channel Protection Compliance Limits of Analysis for Channel Protection Flood Protection Compliance Limits of Analysis for Flood Protection IMPROVEMENTS. THIS STORMWATER MANAGEMENT PLAN COMPLIES WITH PART IIB Existing Impervious Areas 19,275 sf ( ) ( ) Y P y SWM REQUIREMENTS. DA 1 (Pre-Dev.) 60 5.93 1.66 3.58 11.95 65,100 sf 1 1 Section B.3.a (Energy Balance) N/A (Energy Balance Satisified) Section C.2.b (10-yr. Post Flow< Pre Flow) N/A -yr. Post Flow < Pre Flow Satisified) DA 1 (Post-Dev.) 88 2,05 0.23 2.19 9.01 SCOTT R. LLINS� 2 2 Section B.l:a 2- r Peak Flow is nonerosive in Pipes and OP Section B.4.a Subarea < 1% of Overall Watershed) Section C.2.a 10- r Peak Flow is Confined within pipes and outfall channel) Section C.3.c Outfalls to ma WATER QUALITY SUMMARY Subarea 2 ( y p ) ( ( y p'p ( pped Floodplain) THE STORMWATER QUALITY REQUIREMENTS FOR THIS DEVELOPMENT ARE MET Li Lic. No. 035791 ,'h Roads &Sidewalks 63,000 sf 3 3 Section 6.3.a (Energy Balance) N/A (Energy Balance Satisified) Section C.2.b (30-yr. Post Flow < Pre Flow) N/A (10-yr. Post Flow < Pre Flow Satisified) THROUGH MULTIPLE BEST MANAGEMENT PRACTICES, THE BEST MANAGEMENT WATERSHED SUMMARY FOR SUBAREA 2 'O 8 04 4' p q \ _ Pre -Development Impervious Area Summary PRACTICE OF PRESERVING OPEN SPACES IS IMPLEMENTED. A RECORDED EASEMENT Buildings & Patios/Decks 39,330 sf �o / /20 ` Total horn s Rem Removal Required for Blocks 9-11 13.87 Ibs/yr p p fY WILL BE PROVIDED PROTECTING THESE AREAS FROM DISTURBANCES. AFTER THE Area 1-year Flow, 2-year Flow, 10- ear Flow, 1 Phosphorous Removal Achieved from the Level II Wet Pond BMP 5.87 Ibs/yr - \ \\ \ - Subarea 1 APPLICATION OF THIS BMP, A MINIMUM PHOSPHOROUS REMOVAL RATE OF 10.05 ON ' y ' y ' y ' Driveways 19,800 sf SStoNAL ECG ac. cfs cfs cfs 2 f I I RE IRED A LEVEL II WET POND TREAT SUBAREA AND REMOVES 7 1 2130 5 Phosphorous Removal Achieved from the BMP of the SWM Forest &Open Space Easements 3.87 Ibs/yr - \ �,� \ Existing Impervious Areas 19,275 sf bs/yr S QU 8 5 5U R 3 0 5 8 Ibs/yr OF PHOSPHOROUS. ALSO, A 2.08 Ibs/yr PHOSPHOROUS CREDIT FOR THE WET DA 2 (Pre-Dev.) 57 5.27 0.80 2.25 5.90 Subarea 3 Phosphorous Removal Credit from immidately adjacent Wet PondB (Amendment #2 to WP0201700037) 2.08 Ibs/yr \, / POND B (WPO 201700037 AMENDMENT #2) LOCATED IMMEDIATELY ADJACENT TO DA 2 (Post-Dev.) 80 5.59 10.14 14.48 27.80 Remaining Phosphorous Removal Required to be Purchased 2.10 Ibs/yr /// BLOCK 11 IS APPLIED. AFTER THE IMPLEMENTATION OF THESE BMPs, THE DEVELOPER Roads & Sidewalks 61,800 sf WILL PURCHASE NUTRIENT CREDITS FOR THE REMAINING PHOSPHOROUS BALANCE. A Buildings & Patios/Decks 39,900 sf \ SWM FOREST& OPEN SPACE EASEMENT NOTES: / \ / /`\ MINIMUM PHOSPHOROUS REMOVAL RATE PURCHASE OF 2.10 Ibs/yr IS REQUIRED WATERSHED SUMMARY FOR SUBAREA 3 i. NUTRIENT CREDITS WILL BE REQUIRED TO BE PURCHASED FOR THIS DEVELOPMENT PRIOR / \ \' - MINIM [ PHOS ..HOR Driveways 18,450 sf TO THE ISSUANCE OF A LAND DISTURBANCE PERMIT.'SWM' IS AN ACRONYM FOR \ / / /\ Area, 1-year Flow, 2-year Flow, 10-year Flow, 120,150 sf STORMWATER MANAGEMENT. '� - \ WATER QUANTITY SUMMARY FCN z. THE SWM FOREST AND OPEN SPACE EASEMENT IS SUBJECT TO THE GUIDANCE SET FORTH / / L / I THE PROPOSED DEVELOPMENT HAS THREE CONCENTRATEDOUTFALLS-ALL THREE OF ac. cfs cfs cfs UncapturedOveriandRunoff BY DEQ INTHE VIRGINIA STORMWATER MANAGEMENT PROGRAM. THE AREAS WILL REMAIN ✓ / THESE OUTFALLS MEET MINIMUM CHANNEL AND FLOOD PROTECTION REQUIREMENTS DA 3 (Pre-Dev.) 57 3.99 0.58 1.66 6.62 Buildings &Patios/Decks 17,670 sf M Ln m UNDISTURBED IN A NATURAL, VEGETATED STATE EXCEPT FOR ACTIVITIES AS APPROVED IV / / SET FORTH IN 9 VAC 25-870-66. SUBAREA 1 RECEIVES ATTENUATION VIA AN m THE LOCAL PROGRAM AUTHORITY, SUCH AS FOREST MANAGEMENT, CONTROL OF INVASIVE ` \ / UNDERGROUND DETENTION SYSTEM. SUBAREA 2 ADEQUATELY CONVEYS ITS RUNOFF - DA 3 (Post Dev.) 74 7.55 0.12 0.60 4.16 Recreational Amenities 7,150 sf z z z z SPECIES, REPLANTING AND REVEGETATING, PASSIVE RECREATION (e.g. TRAILS), AND / THROUGH MANMADE PIPES AND A RIPRAP LINED CHANNEL AND OUTLET PROTECTION w LIMITED BUSH HOGGING TO MAINTAIN DESIRED VEGETATIVE COMMUNITY (BUT NO MORE�\i \ TO A MAPPED FLOODPLAIN WHERE THE SITE's SUBAREA IS LESS THAN OR EQUAL TO / \ 24,820 sf THAN FOUR TIMES AYEAR). / / � \ \ �\\\ / / \ \� 1% OFTHE RECEIVING CHANNEL's TOTAL WATERSHED, AND SUBAREA 3 RECEIVES / /r/. - \ / \ \ \� p 3. THE PROPOSED ESC LIMITS OF DISTURBANCE BOUNDARY (18.85 ac.)+THE PROPOSED / i / / \ ATTENUATION VIA A LEVEL II WET POND, PLEASE SEE THE SUMMARIES ON THIS r < i / l \ U >Y y > SWM FOREST & OPEN SPACE EASEMENTS' BOUNDARY (11.34 ac.) ARE USED TO DEFINE , �' / \ \ SHEET, AND THE ATTACHED CALCULATIONS PACKET, FOR ADDITIONAL DETAILS. / / \ \ ZF- THE VRRM WATER QUALITY BOUNDARY (30.19 ac.). C5 �7)� 0 Overall Acreage Summary UUU U o o N Pre -Development Post -Development Area, ac. Area, ac. DA 1 5.93 2.05 DA 2 5.27 5.59 DA 3 3.99 7.55 - - 0 00 � CONCENTRATED \ " ) � � p u) m � .`V, o - OUTFALL # -- i00 ) TO POI #33 \ 1 LU 15.19 15.19 � POI #3 - - V _� =ru / L _ POI # - I, = / m Un twit m / - W C2 2 2' V PROPO Ep ILLTY _ � F � � � I / / i ♦ •• � �� / / Il L / ' / / ♦ \ EA MEN - I �� / / � /.. - \ L / ` SS ir 100' OF OVERLAND FLOW ♦ • / / / 90' OF OVERLAND FLOW w� A ELEV.-e, & 1 ■ �� V A��. /// / / A ELEV.=B', 275' OF CONC. FLOW w ♦ ■ / / �/ I / / / i / 75' OF CONC. FLOW w� � / \ / A ELEV.-50' ,/ - -■ �\ / / ,� 625' OFLCHANNEL BFLOW w o 0 0 • ■ 100' OF OVERLAND FLOW / ♦ • A /- - - w A ELEV.=6' & _/ �� - / ♦ PRE-DEV. ♦ / \ % % ■ - - \ - 290" OF LEV. FLOW w/ ♦ / SUBAREA 3 i \ V ■ r� ) - l - A ELEV:=46' '\ _ / ♦♦♦ / c. Tc=0.16 hrs. ♦♦♦ _ 'I �' / • r �� l , A 41 410 L9 r- < 0 co i' 1♦ l ♦♦ ,� V.. �:: / ♦ y �,_ - ■ ♦ 1♦ 40' 0�CO I FLOW \ 410 ♦♦1 ♦♦1 ♦ \ A r ♦ � / _ a' ♦ ♦*e w/ A ELEV.- ' & \ ♦ ♦ ♦ ♦ ' �„ 1,600' OF CHANNEL FLOW ---_ ••... . ♦♦� \1 \\ '/� ■ _ \ BUS AREA 3 r" \L /,� ��J\ ♦♦♦CII ♦♦. �1 \\ A♦ \ �� �� i CV --� ♦ V 1 V of p It AREAS TO BE • I\V / \ // //. ♦RE ANALYZED OR STORMWATER DEVELOPEDAN ITY • ♦ \ / L :` L /L.� t ♦ I LIUCOMPLIANCE N / \ \ ! BASIS. THE DOEVELOPED ARE S WHICH ■ 1 \ \ - k ■ / �` / ♦ J ♦ ARE AREAS APPRO)EIMATELY�PLAND OF /, ♦ � `V � 1 � ' � � � �� - A A \ �.'-�' // ,/ ♦♦ / THE GREENWAY, ESTABLISH THE 1 '♦ \ �._ \ / / ♦ r { '.■ is _ - / \ \ J ■ .■• PRE-DEV. ■ - � \ • _. l � �... DRAINAGE DIVIDES. I ■ 1 i ■ �I ■ ,ALd / �- ♦♦♦ SUB AREA 1 8 ♦i > C6 LIJ �♦♦• CN=60 ■ ■ -� �� i I i x �V / ._� •• Tc=0.16 hrs. ■ / .- _ �\ _ ♦ -. -___ _ \ \ - _ LIJ 2 �\ - ! V ■ \ \ --- 45' OF OVERLAND FLOW - - - -` s • ' \ �� O LLI • • \ _ ♦ • \ ■ - - ._ �♦♦� \ ; \ - �- w � ELEV.=B'_ & \ V A �5 CONIC. FLOW w/ s♦ -♦� \ \ \ \ . , y \ �� ELEV.=2' ♦ ��� J ■ V • L C 40' OF CHAN FLOW \ _ 4e■■■i■■■■u■■y♦ �° �i �/' - �, T ♦ ♦ \ 1 \ ,�. \ v, ■ ► �_ ♦ of>-�, ♦ � a ♦ I \; ■ ♦♦ : \ J / PROPOSED SWM FOREST & OPEN SPACE I \� ',, , \ l / PROPOSED SWM FOREST & OPEN SPACE U ( ^ y ' \ \ ■ : ` ♦ ♦ I/ EASEMENT, TYPICAL. THE TOTAL ACREAGE \ \ SUBAREA 2 1 I EASEMENT, TYPICAL. THE TOTAL ACREAGE I v J w \, ♦ ♦ II OF THESE EASEMENTS (11.34 ac.) IS ♦ - 5.59 ac. \ OF THESE EASEMENTS (11.34 ac.) IS ■ ♦ i � - -■ ♦ I V OUTSIDE THE PROPOSED LIMITS OF � � ' . � i - PROPOSE '`: '( CN=80 V OUTSIDE THE PROPOSED LIMITS OF : ■ _ 1 \ ♦ ♦ j DISTURBANCE. SEE 'SWM FOREST &OPEN CONCENTRATED `^ Tc=0.11 hrs DISTURBANCE. SEE SWM FOREST &OPEN '- "I ■ ■ ' PRE-DEV. \ ' \ SPACE EASEMENT NOTES' ON THIS SHEET.I OUTFACE #1 ♦♦ \ SPACE EASEMENT NOTES' ON THIS SHEET. LJ.J ■ ■ \ ♦ SUBAREA 2 ♦ \/-V - - A _ac. ♦ `. A \ ■ 5,27 EA ♦ ( PROPOSED CULVERT. - POI ) ♦ - CC : ■ \ _ ♦ CN=57 ♦♦ ` - - _ CULVERT DRAINAGE _ ..\�.1 .. ` - -. G - - (TOP #1 -- U All ■ r �♦ Tc=.0.16 hrs. ♦ V - �ROTOSED EE BOUNDARY, OF r AREA=60.5 ac. \_ ♦ DISTURBANCE EELIMITS OF Ln U) SUBAREA 1 • - ♦♦ S U C UN I \/,'� �_.\ 2.05 ac. _ ♦ A S U C BOUNDARY, i • � POI #1 I' ♦ TYPICAL. THE TOTAL LIMITS OF CN=88 PO #1 \ _ ♦ A -� TYPICAL. THE TOTAL LIMITS OF • • - )) �� Tc=0.10 hrs. 1 - � ,� ♦ ♦ DISTURBANCE ACREAGE IS -i DISTURBANCE ACREAGE IS AREA T�'EAT -_UNDER" <'. ! ,/.) ♦ \ 18.85 ac. SEE 'SWM FOREST & �� .�- AREA TREA NDER(p� \ v, ♦♦ 18.85 ac. SEE 'SWM FOREST & LU -WP0201800 VIA I �� i, ♦♦ V A LI OPEN SPACE EASEMENT NOTES' /" . WPO 20180 . "\� , " 1- ,/- it ( ♦♦ A OPEN SPACE EASEMENT NOTES' LU hB ♦ ON THIS SHEET. -- ' POND-4B of / - - �I. A �� ♦♦ / A A ♦♦ �.. ON THIS SHEET. *10 • •_ ♦ ♦♦ I \ y V ...LIMITS OF FEMA � Q / ♦ ♦ �' n .I �� ♦ ♦ ;' - GREENWAY, TYP. APPROVED 100-YR *`` �, r ♦ GREENWAY, TY P. - \ 4 - �♦ ♦♦♦p ♦�♦ V A ♦� I� A�♦ •O♦♦■ L 1 �� \ FLOODPLAIN / V 1 V ' 1♦ � I �� ♦ ■ % �♦♦ �� - C) ♦11 i� �� V • \ •♦♦ �� V ® N 1 _/ ♦♦ ♦! ♦�♦ A ♦ \ PROPOSED -- . a ♦ � ♦■ R! _ I �CONCENTRATED1 �� ♦ A V ♦ � �� OUTFACE #2 \ � ♦ v Lu ♦ _ - ��. Z� D _1 % 0( a In � - b♦1�,1 _ ■ ♦ �, L i ® 00 1 / / JOB NO. ♦ \ _ ® ' ,/ ��• ! PROPOSED SLOPED VDOT CLASS II RIPRAP LINED General Construction notes for Stormwater Management Plans \ `� ®�I % - �\ _ CHANNEL w/ GEOTEXTILE FILTER FABRIC ' O� \. 182150 1. All dams and constructed fill to be within 95% of maximum dry�; ` _ \ \ � e -' - � - - � UNDERLAYMENT. FABRIC TO BE KEYED INTO EX. - - � density and 2% of optimum moisture content. All fill material to \ \� ® - - O GROUNDS"MIN. AT ENDS&ALONG PERIMETER. \RISWAAE ' be approved by a geotechnical engineer. A. geotechnical engineer is _ 'r:Qscace U ®. A SCALE to be present during construction of dams. - \ ,,. - o �., - �' I n_ 0r 2. Pipe and riser joints are to be watertight within Stormwater o � ® \ �, a�� management facilities. ®U POI #2 = `V PROPOSED FLATVDOTCLASS II COARSEAGGREGATE OUTLET N O POI #2 '3. For temporary sediment traps or basins which are to be converted _--® `..,\ - PROTECTION w/GEOTEXTILE FILTER FABRIC UNDERLAYMENT. D SHEET NO. to permanent stormwater management facilities; conversion is not PRE-DEV, SWM PLAN; - FABRIC TO BE KEYED INTO EX. GROUND 9"MIN. AT ENDS&�-__ to take place until the site is stabilized, and permission has been SCALEZ"=120' �` - �� \\�.. -". �, ` 'e ALONG PERIMETER, FABRIC TO OVERLAPAMIN.OF 9" >' j] POST DEV. SWM PLAN, obtained from the County erosion control inspector.' -; \ ®o �- _,y \\ :::,.. SCALEZ"=110' (L=24', W1=6', W2=12', D=30"MIN.) ®®. c WET POND DESIGN & REQUIREMENTS: WET POND CONSTRUCTION NOTES: Treatment Volume, Tv (VRRM) 12,473 cf Minimum Treatment Volume Required for Level II Basin 18710 cf FACILITY PLANTING SPECIFICATIONS: q - 1. THE CONTRACTOR SHALL ESTABLISH AND MAINTAIN A VEGETATIVE COVERAGE IN THE POND AND ITS BUFFER. Treatment Volume Provided at MWSE 15,320 cf 2. THE CONTRACTOR SHALL ALSO INSTALL THEIAETLAND SHELF AND AQUATIC BENCH PLANTINGS AS REQUIRED, AND USE NUTRIENT RICH SOIL IN % Q Q Minimum Percentage of Tv Provided at MWSE 50 � THESE AREAS TO PROMOTE HEALTHY GROWTH AND ROOT DEVELOPMENT. Percentage of TV Provided at MWSE 82 % 3. PLANT SELECTION SHALL PROMOTE DIVERSE WILDLIFE AND WATERFOWL USE WITHIN THE STORMWATER WETLAND, AQUATIC BENCH AND BUFFERS. Ponding Depth Corresponding to Minimum Tv Required 0.4 ft 4. WOODY VEGETATION MAY NOT BE PLANTED OR ALLOWED TO GROW WITHIN 15 FEET OF THE TOE OF THE EMBANKMENT NOR WITHIN 25 FEET FROM THE PRINCIPAL SPILLWAY STRUCTURE. Maximum Ponding Depth allowed for Minimum Tv 4 ft 5. A VEGETATED BUFFER SHALL BE PROVIDED THAT EXTENDS AT LEAST 25 FEET OUTWARD FROM THE MAXIMUM WATER SURFACE ELEVATION OF THE Maximum Percentage of Tv Provided above MWSE 50 0 � WET POND. PERMANENT STRUCTURES (E.G., BUILDINGS) SHALL NOT BE CONSTRUCTED WITHIN THE BUFFER AREA. EXISTING TREES SHALL BE percentage of Tv Provided above MWSE 18 PRESERVED IN THE BUFFER AREA DURING CONSTRUCTION IF POSSIBLE. 6. THE SOILS IN THE STORMWATER BUFFER AREA ARE OFTEN SEVERELY COMPACTED DURING THE CONSTRUCTION PROCESS TO ENSURE STABILITY. THE DENSITY OF THESE COMPACTED SOILS CAN BE SO GREAT THAT IT EFFECTIVELY PREVENTS ROOT PENETRATION AND THEREFORE MAY LEAD TO Minimum Foreba Volume Required 15% of Tv 2,806 cf PREMATURE MORTALITY OR LOSS OF VIGOR. AS A RULE OF THUMB PLANTING HOLES SHALL BE THREE TIMES DEEPER AND WIDER THAN THE Y q ( J DIAMETER OF THE ROOT BALL FOR BALL AND BURLAP STOCK AND FIVE TIMES DEEPER AND WIDER FOR CONTAINER -GROWN STOCK. ForebaY Volume Provided 4616cf 7. AVOID SPECIES THAT REQUIRE FULL SHADE, OR ARE PRONE TO WIND DAMAGE. EXTRA MULCHING AROUND THE BASE OF TREES AND SHRUBS IS o STRONGLY RECOMMENDED AS A MEANS OF CONSERVING MOISTURE AND SUPPRESSING WEEDS, Minimum Upper Wetland Shelf Area (10% Of Pond Area) 654 sf Upper Wetland Shelf Provided 655 sf CONTRACTOR REQUIREMENTS: Notes: 1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LAYOUT OF ALL WORK COVERED UNDER THESE PLANS. 1 A minimum fo rebaY p volume depth of 4' with an aquatic bench 4' wide 2' 2. LANDSCAPE CONTRACTOR SHALL REFER TO THE STANDARDIZED LANDSCAPE SPECIFICATIONS FOR THE STATE OF VIRGINIA FOR ADDITIONAL INFORMATION. THE CONTRACTOR SHALL ABIDE BY ITS CONTENTS; HOWEVER ANY NOTES OR SPECIFICATIONS ON THE PLANS SHALL SUPERSEDE deep has been provided. THOSE OUTLINED IN THE SPECIFICATIONS MANUAL (COPIES ARE AVAILABLE FORA FEE FROM THE VIRGINIA CHAPTER OFTHE AMERICAN SOCIETY 2 A minimum forebay volume of 1S% of the total Tv has been provided. OF LANDSCAPE ARCHITECTS, VIRGINIA NURSERYMEN'S ASSOCIATION, INC. AND THE VIRGINIA SOCIETY OF LANDSCAPE DESIGNERS), 3 A 10' wide aquatic bench ranging from 12"-18" in depth has been provided. 3. ALL PLANT MATERIAL SHALL MEET THE MINIMUM SPECIFICATIONS AND STANDARDS DESCRIBED IN THE CURRENT ISSUE OF THE AMERICAN 4 Side slopes of 5:1 have been provided. STANDARD FOR NURSERY STOCK, PUBLISHED BYTHE AMERICAN ASSOCIATION OF NURSERYMEN, 1250 STREET, NW, SUITE 500, WASHINGTON, DC 20005. 5 The minimum treatment volume required has been provided. 4. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS IN THE FIELD AND NOTIFY THE DESIGNER OF ANY VARIANCE FROM THE PLAN. 5. THE LANDSCAPE CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE LOCATION OF ANY ONSITE UTILITIES (CALL MISS UTILITY 1-800-552-7001 BEFORE ANY EXCAVATION). 6. REFER TO THE APPROVED CONSTRUCTION PLANS FOR ANY DETAILED SITE INFORMATION. 7. ALL WORK SHALL BE COORDINATED WITH OTHER PARTIES. LOW -FLOW WEIR 8. PLANTS WILL BE PREPARED FOR SHIPMENT IN A MANNER THAT WILL NOT CAUSE DAMAGE TO THE BARK, BUDS, BRANCHES, STEMS, OR OVERALL SHAPE OF THE STOCK. CONTAINER GROWN PLANTS WILL BE TRANSPORTED IN THE CONTAINERS IN WHICH THEY HAVE BEEN GROWN. 9. ALL PLANT MATERIAL UNLESS OTHERWISE SPECIFIED SHALL BE UNIFORMLY BRANCHED AND HAVE A VIGOROUS ROOT SYSTEM. PLANT MATERIAL SHALL BE HEALTHY, VIGOROUS, AND FREE FROM DEFECTS, DECAY, DISEASES, INSECT PEST EGGS, AND ALL FORMS OF INFESTATION. ALL PLANT HIGH -FLOW WEIR MATERIAL SHALL BE FRESH FREE FROM TRANSPLANT SHOCK OR VISIBLE WILT. PLANTS DEEMED UNHEALTHY WILL BE REJECTED. 10LALL CONTAINER STOCK SHALL HAVE BEEN PROPAGATED IN A CONTAINER LONG ENOUGH FOR. THE ROOT SYSTEM TO HAVE DEVELOPED SUFFICIENTLY TO HOLD ITS SOIL. CONTAINER STOCK WITH POORLY DEVELOPED ROOT SYSTEMS WILL NOT BE ACCEPTED. 11.PLANTS NOT INSTALLED ON THE DAY OF ARRIVAL ON SITE SHALL BE STORED AND PROTECTED BY THE CONTAINER. OUTSIDE STORAGE AREAS WILL BE SHADED AND PROTECTED FROM THE WIND AND SUN. PLANTS STORED ON SITE SHALL BE PROTECTED FROM ANY DRYING ATALLTIMES BY COVERING THE BALLS OR ROOTS WITH MOIST SAWDUST, WET BURLAP, WOOD CHIPS, SHREDDED BARK, PEAT MOSS, OR OTHER SIMILAR MULCHING C$KE-DIMENT FORESAY MATERIAL. 12.THE OWNER RESERVES THE RIGHT TO SUBSTITUTE PLANT MATERIAL TYPE SIZE AND/OR QUANTITY. ANY SUBSTITUTIONS MUST BE APPROVED BY / THE DESIGNER. 13.MINOR FIELD ADJUSTMENTS MAYBE NECESSARY DUE TO SITE CONDITIONS EX: ROOTBALL AND UTILITY CONFLICT). MAJOR ADJUSTMENTS MUST BE APPROVED BY THE DESIGNER. ( ) 14.NO PLANTING SHALL OCCUR WHEN THE SOIL IS FROZEN. ► r �' 15.PLANT MATERIAL SHALL BE PLACED IN EXISTING SOIL WITH EACH PLANTING PIT EXCAVATED TO A S1ZE SUFFICIENT TO CONTAIN THE ENTIRE ROOT 1'cr PRII BALL OR ROOT MASS, WITHOUT CRAMPING ROOT STOCK. 16.THE CONTRACTOR SHALL MAINTAIN A ONE (1) CALENDAR YEAR 90% CARE AND REPLACEMENT WARRANTY FOR ALL PLANTINGS. THE PERIOD OF 1 CARE AND REPLACEMENT SHALL BEGIN AFTER INSPECTION AND APPROVAL OF THE COMPLETE INSTALLATION OF ALL PLANTS AND CONTINUE FOR ONE CALENDAR YEAR. i I 17.THE CONTRACTOR IS RESPONSIBLE FOR REMOVAL AND DISPOSAL OF TRASH AND DEBRIS WITHIN THE LIMITS OF THE PLANTING ON A DAILY BASIS. STORMWATER MANAGEMENT FACILITY GRADING Elevation (ft) Area of Forebay Cell Contours (sf) Volume (cf) 428 399 0 430 622 1,013 432 880 2,507 433 1,018 3,456 434 1,309 4,616 436 - - 438 440 Elevation (ft) Area of Main Cell sf Contours ll Volume Cf () 428 180 0 430 923 1007 432 2,068 3,922 433 2,780 6,337 434 4,573 9,977 436 438 440 Elevation (ft) Area of Wetland Cell Contours (sf) Volume (cf) 428 430 432 - - 433 377 0 434 655 510 436 - - 438 440 Elevation (ft) Total Facility Area Contours (sf) Volume (cf) 428 579 0 430 1,545 2,047 432 2,948 6,465 433 4175 10,008 434 6,537 15,320 436 10,163 31,888 438 14,374 56,303 440 19,395 89,947 24 u 36" MIN. PROJECTION r i h 77 I L* 6 6" . _ � . t u/rn e IMn rrCl i 18.THE CONTRACTOR WILL NOT BE RESPONSIBLE FOR PLANT MATERIAL THAT HAS BEEN DAMAGED BYVANDALISM, FIRE, OR OTHER ACTIVITIES I I 'NOTE: WEIR LENGTH-S BEYOND THE CONTRACTOR'S CONTROL. 1 FACILITY CONSTRUCTION: I I GABION BASKETS FILLED WITH STONE TO SERVE AS THE 1. THE CONTRACTOR SHALL USE THE WET POND AS AN E&S CONTROL STRUCTURE IF SHOWN IN THIS MANNER ON THE APPROVED ESC PLANS. IF INTERNAL DAMS. BASKETS TO BE ANCHORED BELOW GRADE. I APPLICABLE, THE WET POND SHALL SERVE AS A SEDIMENT BASIN DURING PROJECT CONSTRUCTION. IF THIS 15 DONE, THE VOLUME SHALL BE BASED ON THE MORE STRINGENT SIZING RULE (EROSION AND SEDIMENT CONTROL REQUIREMENT VS. WATER QUALITY TREATMENT REQUIREMENT). 1 INSTALLATION OF THE PERMANENT RISER SHALL BE INITIATED DURING THE CONSTRUCTION PHASE, AND DESIGN ELEVATIONS SHALL BE SET WITH { r It FINAL CLEANOUT OF THE SEDIMENT BASIN AND CONVERSION TO THE POST -CONSTRUCTION WET POND IN MIND. THE BOTTOM ELEVATION OF THE -. r r r e WET POND SHALL BE LOWER THAN THE BOTTOM ELEVATION OF THE TEMPORARY SEDIMENT BASIN. APPROPRIATE PROCEDURES SHALL BE JL _ T r IMPLEMENTED TO PREVENT DISCHARGE OF TURBID WATERS WHEN THE BASIN IS BEING CONVERTED INTO A WET POND. 2. WET PONDS SHALL ONLY BE CONSTRUCTED AFTER THE CONTRIBUTING DRAINAGE AREA TO THE POND IS COMPLETELY STABILIZED. IFTHE PROPOSED POND SITE WILL BE USED AS A SEDIMENTTRAP OR BASIN DURING THE CONSTRUCTION PHASE, THE CONTRACTOR SHALL DE -WATER, DREDGE AND RE -GRADE THE SEDIMENT CONTROL FACILITY TO DESIGN DIMENSIONS AFTER THE ORIGINAL SITE CONSTRUCTION IS COMPLETE. 3. THE CONTRACTOR SHALL ASSEMBLE CONSTRUCTION MATERIALS ON -SITE, MAKING SURE THEY MEET DESIGN SPECIFICATIONS AND ARE PREPARED AT STAGING AREAS WHEN POSSIBLE. 4. THE CONTRACTOR SHALL CLEAR AND STRIP THE PROJECT AREA IF REQ UIRED TO THE DESIRED SUB-. GRADE GENERAL SWM NOTES: 5. THE CONTRACTOR SHALL INSTALL E&S CONTROLS PRIOR TO CONSTRUCTION, INCLUDING TEMPORARY DE -WATERING DEVICES AND STORMWATER z.. STATE APPROVED TRASH RACKS AND ORIFICES SHALL BE INSTALLED ON ALL ORIFICE DIVERSION PRACTICES. ALL AREAS SURROUNDING THE POND THAT ARE GRADED OR DENUDED DURING CONSTRUCTION MUST BE PLANTED WITH OPENINGS.. SEE DETAILS ON THIS SHEET, OR EQUIVALENT, FOR INSTALLATION. TURF GRASS, NATIVE PLANTINGS, OR OTHER APPROVED METHODS OF SOIL STABILIZATION. z.. CONCRETE FOUNDATIONS SHALL BE INSTALLED ON ALL RISER STRUCTURES MEETING 6. THE CONTRACTOR SHALL ALSO EXCAVATE THE CORE TRENCH AND INSTALLTHE SPILLWAY PIPE. MINIMUM VESCH 3.145PECIFICATI0N5.. 7. THE RISER AND APPLICABLE OUTFLOW STRUCTURES SHALL BE INSTALLED, AND THE CONTRACTOR SHALL ENSURE THE TOP INVERT OF THE 3. CONTRACTOR SHALL HIRE A THIRD PARTY GEOTECHNICAL ENGINEER TO ENSURETHE OVERFLOW WEIR IS CONSTRUCTED LEVEL AT THE DESIGN ELEVATION. EMBANKMENTS ARE STRUCTURALLY SOUND.THE EMBANKMENTS SHALL HAVE A COMPACTED 8. THE CONTRACTOR SHALL CONSTRUCT THE EMBANKMENT AND ANY INTERNAL BERMS IN 8-TO 12-INCH LIFTS COMPACTION SHALL BE COMPLETED CLAY CORE WITH A CUTOFF TRENCH & BE IN ACCORDANCE WITH THE DETAILS SHOWN ON THIS IN LIFTS WITH APPROPRIATE UI E PMENT. THE CONTRACTOR SHALL ALSO ADHERE TO THE CLAY LINER SPECIFICATIONS OUTLINED IN TABLE 14.4 Q SHEET. ALL EXISTING AND PROPOSED FILL MATERIAL AND PROPOSED CONSTRUCTION SHALL BELOW: BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION Table 14.4. Clay Liner Speclt5carions OF THE EMBANKMENTS AND FILL AREAS, AND PRESENT DURING THE CORE SAMPLING. Pr Permeability Plasticity Index of Clay Liquid Limit of Clay Clay Particles Passing Clay Compaction 4. THE DOWNSTREAM EMBANKMENT SIDE SLOPES OF ALL PERMANENT FACILITIES SHALL HAVE MAXIMUM 3:1 SLOPE. 5 STONE DIVERSION TO SLOW THE INFLOW OF WATER TO THE RISER, AND TO PROVIDE FURTHER SEDIMENT FILTRATION. IN ADDITION TO THE LOW -FLOW ORIFICE's TRASHRACK, THE STONE DIVERSION RING SURROUNDING THE RISER PROVIDES A zND LAYER OF PROTECTION TO REDUCE THE RISK OF CLOGGING IN THE LOW -FLOW ORIFICE. 6. THE PROPOSED. LEVEL II WET POND SHALL INCLUDE AN AERATOR. SEE DETAIL ON SHEET 22. Test Metlrod URR S ciFicaBoR ASTM D-2434 Cmrsec 1 x 10 ASTM D-4231424 % Not less than 15 ASTM 0.2216 % Not less than 30 ASTM D-422 % Not less than 30 ASTM 0.2216 % 95% of Standard proctor densilly Source: Virginia Stormwaler Management Handbook (1999) 9. EXCAVATION AND GRADING TO THE APPROPRIATE ELEVATIONS AND DESIRED CONTOURS SHALL BE ACHIEVED FOR THE BOTTOM AND SIDE SLOPES OF THE POND. VA DEO STORMWATER DESIGN SPECIFICATION NO. 14 WET POND lO.THE EMERGENCY SPILLWAY SHALL BE CONSTRUCTED IN CUT WHERE POSSIBLE, OR IN STRUCTURALLY STABILIZED SOILS, 11.THE OUTLET PIPES, INCLUDING DOWNSTREAM RIP -RAP APRON PROTECTION, SHALL BE INSTALLED. 12.EXPOSED SOILS SHALL BE STABILIZED WITH TEMPORARY SEED MIXTURES APPROPRIATE FOR THE POND BUFFER. ALL AREAS ABOVE THE NORMAL POOL ELEVATION SHALL BE PERMANENTLY STABILIZED BY HYDROSEEDING OR SEEDING OVER STRAW. SECTION 4: TI-PIC AL DETAMS 13.THE POND BUFFER AREA SHALL BE PLANTED WITH A VEGETATIVE GROUND COVER AND THE CONTRACTOR SHALLTHEN INSTALL THE APPROPRIATE BASIN LANDSCAPING IN ACCORDANCE WITH THE APPROVED PLANS. wPER SHELF WETLAND(LEVEL 2) 14.ALL CONSTRUCTION SHALL ADHERE TO THE VIRGINIA DEQ POST CONSTRUCTION BMP CLEARINGHOUSE REQUIREMENTS SET FORTH IN DESIGN WETLAND CELL NFL-0WFRCMF0RE9AYMAX 1V OEFM - 12' SPECIFICATION NUMBER 14. WREflnY OVERPLGW (REFER TO TABLE 142 FOR VOLl1RE R RT T I O ABLE - REUUIREFAEkTuh :1AFErY BENCn FACILITY MAINTENANCE: 2FE N.2 FOF VS)LUME - REQUIR lumm) MAINTENANCE OF THE WET POND(S) IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE OF THE POND. �+*� 0 DURING THESE INSPECTIONS THE FOLLOWING TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR FOLLOWING INSTALLATION, AND THE OWNER THEREAFTER: 1. MEASURE SEDIMENT ACCUMULATION LEVELS IN THE FOREBAY. 1. MONITOR THE GROWTH OF WETLANDS, TREES AND SHRUBS PLANTED, AS APPLICABLE. RECORD THE SPECIES AND THEIR APPROXIMATE COVERAGE„ AND NOTE THE PRESENCE OF ANY INVASIVE PLANT SPECIES AS APPLICABLE + 2. INSPECTTHE CONDITION OF STORMWATER INLETS TO THE POND FOR MATERIAL DAMAGE, EROSION OR UNDERCUTTING. Law ROW +' 3. INSPECT THE BANKS OF UPSTREAM AND DOWNSTREAM CHANNELS FOR EVIDENCE OF SLOUGHING ANIMAL BURROWS BOGGY AREAS WOODY GROWTH, OR GULLY EROSION THAT MAY UNDERMINE EMBANKMENT INTEGRITY. ISER N 4. INSPECT POND OUTFALL CHANNEL FOR EROSION, UNDERCUTTING, RIP -RAP DISPLACEMENT, WOODY GROWTH, ETC. 5. INSPECT CONDITION OF PRINCIPAL SPILLWAY AND RISER FOR EVIDENCE OFSPALLING., JOINT FAILURE LEAKAGE CORROSION OR OTHER FAILURES. «77 6. INSPECT CONDITION OF ALLTRASH RACKS OR FLASHBOARD RISERS FOR EVIDENCE OF CLOGGING, LEAKAGE, DEBRIS ACCUMULATION OR OTHER A FAILURES. ("� 7. INSPECT MAINTENANCE ACCESS TO ENSURE IT 15 FREE OF WOODY VEGETATION, AND CHECK TO SEE WHETHER VALVES, MANHOLES AND LOCKS wDHPow �- �� AERAm� FLOW PATH ANDPOOL GEOMETRY CAN BE OPENED AND OPERATED. LANDSCAPING PnEFER To TABLE 1s.2 taE<ER To TABLE 14 2 aoRu AND8. INSPECT INTERNAL AND EXTERNAL SIDE SLOPES OF THE POND FOR EVIDENCE OF SPARSE VEGETATIVE COVER, EROSION, OR SLUMPING, AND MAKE FOR,- ANp L2 i/1Oo �r'10H L2 REOUREMENTS) NEEDED REPAIRS IMMEDIATELY. REOVREIAENT$) M.FETY BENCH 9.. REPAIR AND REPLACE AS NECESSARY. SAFETY--A00^1IC BENCI- 10.PLEASE SEE THE TABLE BELOW FOR ADDITIONAL MAINTENANCE MEASURES ABOVE AND BEYOND THOSE OUTLINED ABOVE: PL,4NVIEW Table 14.6. Typical Wet Pond Maintenance Tasks and Fregrrency Maintenance Remy Frequency • Mowing -twice a year Quarterly or after major storms • Remove debris and blockages (-1 inch of rainfall) • Repair untlercut, eroded, and bare soil areas • Moving Twice a year • Shoreline cleanup to remove trash, debris and flaatables • A full maintenance inspection Annually • Open up the user to access and test the valves • Repair broken mechanical components. it needed One time during the • Pond buffer and aquatic bench reinforcement plantings deyeariblitnin constucilat • _Fwebay Sediment Removal Every 5 to 7 years • Repair pipes, the riser and spillway,ae needed From 5 to 25 years FACILITY INSPECTION: MULTIPLE INSPECTIONS ARE CRITICAL TO ENSURE THE BASINS ARE PROPERLY CONSTRUCTED. BECAUSE THE TIMING OF THE INSTALLATION IS DICTATED BY THE CONTRACTOR, THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER AND INSPECTOR PRIOR TO INSTALLATION. MULTIPLE SITE VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE CONTRACTOR, WITH THE ENGINEER AND INSPECTOR, DURING THE FOLLOWING STAGES OF THE EXTENDED DETENTION BASIN'S CONSTRUCTION PROCESS: 1. PRE -CONSTRUCTION MEETING 2. INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS) 3. EXCAVATION/GRADING (E.G., INTERIM/FINAL ELEVATIONS) 4. WET POND INSTALLATION (E.G., INTERIM AND FINAL ELEVATIONS) S. INSTALLATION OF THE EMBANKMENT, THE RISER/PRIMARY SPILLWAY, AND THE OUTLET STRUCTURE(S). 6. PLANTING AND VEGETATIVE STABILIZATION PHASE (WITH AN EXPERIENCED LANDSCAPE ARCHITECT PRESENT) 7. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE) NOTE REFER TO TABLE 1A 2 MAO DESIGN OPEC PA 13 00148 T,J❑TET3 WETLAND DECTON 6 FOR LI AND L Z VOLUME AND a O W DERTFI CRITERIA M WETLAND CELL DVERFLr)W TO WET POND NOSIWA Pax SGFLTT' 9ENCH % CNANBJEL PROTECTION AQUATIC OrNO � 'V'1 NORI.IAL FVOL em FoaEeAv ='II' -OWR TO UPPER �iELF WETLA^1Li I�f1Lla - Ti7-ii--.r-TiF- j".-RFVERSE SLOPF LOW FLOW 'IR .H.� _ PROFILE i'007.1 ,;PPER SHELF 'Oi ETLArJD; £LAFETY DENL`H a❑1lAT%": Rerc:H CHAIVNEA PROTEOTIOk TV F OAMAL POOL HIGH FLOW TO WET POND NORMAL I III-I11 II -Ili I m -' II IFII „)II I1�1 1�II [lI l � Il Ii'' HE�Fwr: _M Lovv FLw �, r �r7,r �r rn m rn "PE NOTE FOTTI TO 9ECTK)N a FCR L1 APO L2 NCRiMAL FOOL VOLUME Tw TroEF•n I AND Tv arm ❑HM14EL PRD IECTX N aroFaDE DErn1a PROFILE ONITHOUT UPPER SHELF WETLAND) Figure 14.1. Wet Pond Design Schematics PROPOSED GREENWAY, TYP. _ PROPOSED VARIABLE WIDTH / \ 1" --- (- SWM& ACCESS EASEMENT / \ COINCIDES WITH SWM FOREST. \ ( & OPEN SPACE EASEMENT. \ \ i zo' WIDE, iz" DEEP�� FLOW PATH > 3:1 AQUATIC BENCH \ \ (FLOW LENGTH=2457WIDTH=78') / av u CONTRACTOR SHALL USE NUTRIENT RICH TOPSOIL FOR THE i AQUATIC BENCH &SHALL ENSURE .HEALTHY GROWTH OFPLANTINGS DURING THE FIRST YEAR (TYP.) --BLOCK AND 1 PROPERTY LIMITS .01 7 / TOP OF DAM ELEV.=433.5o' ADJACENT TO THE WETLANDS CELLTHE WETLANDS CELL's LOWER TOP OF DAMELEVATION CONVEYS THE WETLANDOM CELL TO THE CF"�5 F' C +OW9 ,fir •- L SEE THIS SHEET FOR SCALED 8 "` PROFILES OF THE ALIGNMENTS (TYP.) WETLAND CELL 1 00 I.. R 6 C C 2 0 s f I PROPOSED VARIABLE WIDTH SWM &ACCESS EASEMENT COINCIDES WITH LOT LINES 8' WIDE FOREBAY SPILLWAY CREST ELEV.=433$ �_ 4q / DAM LOCATED BETWEEN THE FOREBAY AND WETLAND CELLS TO HAVE A TOP` / ELEVATION OF 434.00' WITH AN 8' WIDE WEIR (CREST ELEV.=433.50'). WEIR, / TO CONVEY FLOWS FROM FOREBAY CELL TO WETLANDS CELL. \ \ / TOP OF DAM ELEVATION ADJACENT TO FOREBAY CELL \ _- / SHALL BE 434.00'. DAM TO CONVEY FLOWS FROM THE ` FOREBAY CELL TO THE MAIN CELL VIA OVERTOPPING.. \ 2' WIDE INTERIOR DAM CONSTRUCTED OF GABION BASKETS FILLED WITH STONE. GABION _ \ BASKETS FILLED WITH STONE TO EXTEND 3'' BEYOND THE EDGE OF THE POND's PERIMETER _ AND BE ANCHORED 2' BELOW POND WITH A BOTTOM ELEV.=326.00. TYP. - / PROPOSED z' DEEP VDOT CL. Al V-NOTCHED RIPRAP LINED 9 CHANNEL w/3:i SIDESLOPES EE AQUATIC BENCH (ZONE 1) PLANTING SCHEDULE FOR SWM FACILITY �I FM BOTANICAL COMMON NAME SIZE SWM FACILITY QUANTITY COVERAGE (sf) ZONE I PLANTINGS EC PONTEDERIAPECTINATUS PONDWEED - 600 VA VALISNERIAAMERICANA WILD CELERY 375 EC ELODEACANADENSIS WATERWEED 1,076 - 460 - 0,8" ADS HDPE DRAIN BASIN WITH DOME GRATE TO SERVE AS THE SWM RISER TO REMAIN COVERED DURING CONSTRUCTION TO MINIMIZE DISTURBANCES TO THE EMBANKMENT. AT THET�ME OFTHE FACILITY's CONVERSION FROM A TEMP. SEDIMENT BASIN TO A PERMANENT SWM FACILITY, THE SWMIRISER's TOP AND ORIFICES SHALL BECOME OPERATIONAL. SWM RISER RIM ELEVATION=437.25' 455 ONE (1) 0 1- LOW LOW FLOW ORIFICE (INV=434.00') - FIVE (5) 0€" MID FLOW ORIFICES (INV=436.50') EXISTING 450 \� GRADE / PROPOSED z' WIDE, i8" TALL DIVERSION CONSTRUCTED OF / GABION BASKETS FILLED WITH 445 STONE. DIVERSION TOP TO EXTEND ABOVE THE MWSE. SEE GENERAL OF ELEV.=43330ADJAC5 TOP -' ENT SWM NOTE' ON THIS SHEET. . TO THE WETLANDS CELLTHE WETLANDS CELL's LOWER TOP OF DAM ELEVATION CONVEYS FLOWS FROM - THE WETLAND CELL TO THE MAIN CELL. 440 100-yr PEAK WSE=438.90 10-yr PEAK WSE=438.16 8' WIDE FOREBAY i0' WIDE,az" DEEP 2-y PEAK WSE=436.67 SPILLWAY CREST_ AQUATIC BENCH 1-yr PEAK WSE=436.22 ELEV.=4333' �s � 3 5 7O yav c. f _ _ _ PROPOSED RAU/c F_­- PROPOSED 6'DEEP FOREBAY (FLOOR ELEV =428')To PROVIDE PRETREATMENT UPLAND OF MAIN CELL & WETLAND CELL. FOREBAY HELPS FURTHER REDUCE THE RISK OF CLOGGING IN THE LOW -FLOW ORIFICE.. SEE GENERAL SWM NOTE #5 ON THIS SHEET. 425 RISER (RIM=437.25') TO BE MODIFIED. TRACTOR SHALL INSTALL A VDOT STD.MH-i ON THE 048" CONCRETE BASE / RISER AT THE OF THE FACILITY's CONVERSION. STR. 302 LL REMAIN TO RECEIVE RUNOFF FROM STR. 304. 460 455 450 GRADE 445 CONTRACTOR SHALL INSTALL EMBANKMENT IN ACCORDANCE w/ THE DESIGN SHOWN ON THESE PLANS, 440 O 2 S � \ 435 STR 303 1\ 8.00 LF OF 08" HDPE @ 11.50% (INV IN=429.02; INV OUT=428.10) WET POND DETAIL: 3"8SCALE I"=30' / L I M ITS OF STREAM TYP.. / PROPOSED FLATVDOT CLASS Al ti COARSE AGGREGATE OUTLET O. PROTECTION w/GEOTEMILE FILTER R� FABRIC UNDERLAYMENT. FABRIC TO BE KEYED INTO EX. GROUND 9" MIN. AT ENDS& ALONG PERIMETER. FABRIC TO \ OVERLAP A MIN. OF 9" (L=10', W1=6% W2-6, D=18" MIN.) PROPOSED SWM FACILITY &ACCESS EASEMENT COUNTY DEFINED f MANAGED STEEP SLOPES TYP. Lic. No. 035791 y 8/04/20 O�SIONet, z z z z LU w w w g E E 0 PROPOSED 25'WIDE VDOT CL. Al RIPRAP O O O O LINED EMERGENCY SPILLWAY CREST - U U U U ELEV.=438.25'. SPILLWAY TO HAVE :>. SiDE Z yy SLOPES FOR VEHICULAR TRANSITI NS. 00 J Z z z zz ¢ 0 a 0 (� a r 0 U U U V/ W GG� U CD 0 0 W W/ Z w 0 (n Go N .N-A O I\ io'WIDE TOP OF�DAM O z Q '" N �LEVATION=440' � UJ Cc tY � U71 LLJ _ w w w LU LU LU A > zILL! N In Ln Ln ' PROPOSED z'WIDE >.8"TALL DIVERSION a g g H a a a I CONSTRUCTED OF GABION BASKETS ` w FILLED WITH STONE. DIVERSION TOP TO / I Ul tw Ln I, EXTEND ABOVE THE MWSE. SEEGENERAL / SWM NOTE #5 ONTHISSHEET. LU LU LU ZOUNTY DEFINED 4'ce ( PRESERVED STEEP PES, �. SHORTEST FLOW PATH zo6' TYP. (IMPACTS OVERALL LENGTH IRS') >0.8 RE FOR EXTENSION OF STELLA LN.) 1 0' WIDE GRADED, GRASS LINED ACCESS ROAD I _ TO RISER FOR POTENTIAL MAINTENANCE PROPOSED 6' DEEP FOR EBAY TO PROVIDE PRETREATMENT UPLAND OF MAIN CELL & WETLAND CELL, FOREBAY HELPS FURTHER REDUCE THE RISK OF CLOGGING IN THE LOW -FLOW ORIFICE. SEE GENERAL SWM NOTE #5 ON THIS SHEET. ' Is PROPOSED /RGRREENWAY, TYP. / PROPOSED5WM \. / /\,�J FACILITY & ACCESS EASEMENT SECTION :A-9: TI-PICAL GRAPHICAL DEI4II.S r-"O nogeneaus fill r- - - ------- I /��/�✓\/�. �/� 4' min 'Irk I Oli off tm eh-rn telav salable material I Sailamck L----------_J TYPICAL HOMOGENEOUS EMBANKMENT Transition rill ace or gravel 'Pipe outlet Coarse f�i t� . Perforated collector around a wndation dmin Bknket drain FOUNDATION DRAIN BLANKET DRAIN STR 301 430 445 445 - --14i.83 LF OF 024'- CL.IIIRCP@8.46% PROPOSED 25' WIDE VDOT CL. Al-zo'WIDE TOP (INV IN-428 00- RIPRAP LINED EMERGENCY LE DAM INV OUT=416.00) SPILLWAY CREST ELEV.=438.z5'.. ELEV.=440' SPILLWAY TO HAVE 4:1 SIDE SLOPES } 1 \ FOR VEHICULAR TRANSITIONS. _ DEPTH,=:e (FLOOR DAM LOCATED BETWEEN THE FOREBAY AND ELEV.=4z8.0') WETLAND CELLS TO HAVE A TOP ELEVATION TO PREVENT FLOTATION THE RISER BASE OF434.00' WITH AN 8' WIDE WEIR (CREST _ AND BARREL CONNECTIONS SHALL BE ELEV.=433.50'). WEIR TO CONVEY FLOWS FIRMLY EMBEDDED 6" INTO THEIR 18" FROM FOREBAY CELL TO WETLANDS CELL. THICK REINFORCED CONCRETE 420 FOUNDATIONS. THE CONC. FOUNDATIONS 4251 440 a -. SHALL BE BURIED-BELOW-GROIVND. STR. 2' WIDE INTERIOR DAMS 304's CONC. FOUNDATION SHALL BE CONSTRUCTED OF GABION BASKETS 3'Lx3'Wx18"D AND STR 306's CONC. ILLED WITH STONE SHALL EXTEND 3' FOUNDATION SHALL BE 8'Lx8'Wx18"D BEYOND THE EDGE OF THE POND'S PERIMETER AND BE ANCHORED 2' PROPOSED RIPRAP TO EXTEND TO STREAM BELOW POND BOTTOM AT BANKS AS SHOWN. CONTRACTOR SHALL 415 - NOT DISTURB THE STREAM AND WETLANDS ELEV.-326.00. TYP. 415 PROPOSED FLAT VDOT CLASS Al COARSE AGGREGATE OUTLET PROTECTION w/ GEOTEXTILE FILTER FABRIC UNDERLAYMENT. FABRIC TO BE KEYED _ INTO EX. GROUND 9" MIN. AT ENDS & ALONG PERIMETER. FABRIC TO OVERLAP A MIN. OF 9" 410 WET POND SECTION (L=10', W1=6', W2=6',ID=18" MIN.) 410 J J M to r` O N O 00 '-r? N c0 m 11 ILL>> d..O I'D M M 4 Lfl d- N LI lL PROFILE SCALES 1'=5' (V) PROP( 1"=50'(H) GRA 435 mus 435 )POSED VDOT STD. EW-1 D_�-EX ST N GRADE 4301 430 WET POND 425 SPILLWAY 425 > > O O W LaLL,rq o 0 O WICJ14- - /n:••, ada eIOMI awn Rock or gravel Nod Ioc drain �TTunalUon filter Tnomitior, filler CHIMNEY DRAIN TOE DRAIN Figure A-Ia. Hoalogeneorn Ealbanknierns 6•.'.Seepage Controls EMBANKMENT NOTES: AFTER AN INVESTIGATION OF THE SITE's SOILS, SITE VISITS, AN ANALYSIS OF THE SURVEYED TOPOGRAPHY AND AN EXAMINATION OF VA DEQAPPENDIX A: EARTHEN EMBANKMENT, THE APPLICANT HAS PROVIDED A COMPREHENSIVE EMBANKMENT DESIGN THAT DOES NOT NEED A GEOTECHNICAL STUDY AT THIS TIME. SUCH IS THE CASE DUE TO THE PRECAUTIONARY EMBANKMENT DESIGNS PROPOSED. A SUMMARY OF THE EMBANKMENT DESIGN REQUIREMENTS ARE LISTED BELOW, MANDATING THE CONTRACTOR MEETTHESE REQUIREMENTS AT A MINIMUM. THE EMBANKMENTS SHALL HAVE A COMPACTED CLAY CORE WITH A CUTOFF TRENCH & BE IN ACCORDANCE WITH THE DETAILS SHOWN ON IN THIS PLAN. BERMS AND SPILLWAYS SHALL BE STABILIZED WITH EC-3 MATTING & THE REMAINING DISTURBED SLOPES SHALL BE STABILIZED WITH EC-2 MATTING. ALL BERM FILL MATERIAL SHALL CONSIST OF ML, CL, SC OR GC SOILS & BE FREE OF WOOD, ROOTS, ROCKS OR ANY OTHER NON COMPACTING SOIL. COMPACTED FILLSHALL BE PROCTOR MAXIMUM DRY DENSITY ASTM D698 AND HAVE A MINIMUM OF 95% OF MAXIMUM DRY DENSITY AND 2%OF OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL AND CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS. Co O o 0 0 LU w M \ N - 7 Owl M .--I 1714 O � W z v r M J z �i INN - M 00 0 1 5 n i� N s O o WM>o N l/1 � J W > Q w w Z _J ° m _J W 06 Ian LLCLJ o o G 0 TPq w ❑ 0 J Q Q z z Q m U U � a 0 W Y w w U Q o �n U 2 a r ■ J N c 10:I Z o Zw I- z 0"JU,z z w U) J z J _ J a o n U O 0 O ® 0 N m M L W ❑ U w ° J � F- c w ru E w OLUQ JOB NO. o 182150 0 0 SCALE ° AS SHOWN ° m c SHEET NO. o 18 w N S y� COUNTY OF ALBEM ARLE Department of Community Development i! Construction Record Drawings (As -built) for VSMP The following is a list of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not provide design drawings as construction record drawings. A. A signed and dated professional seal of the preparing engineer or surveyor. B. The name and address of the firm and individual preparing the drawings on the title sheet. C. The constructed location of all items associated with each facility, and the inspection records to verify proper dimensions, materials and installation. The items include, but are not limited to the following: 1. Inspection Records and photographs for pipe trenches and bedding, including underdrains. 2. Video Pipe Inspection for any pipes which are not accessible or viewable. 3. Updated Location with geo-coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. 5. Current physical and topographic survey for all earthen structures. Ponds should include a survey of the pond bottom. Surveys should verify pond volumes are per design. Corrections may be required for alterations from the design. 6. Plants, location and type. 7. Plans and profiles for all culverts, Pipes, Risers, Weirs and Drainage Structures - Display the installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), inlet and outlet protection, alignment and invert elevations compared to design. 8. Computations: For significant deviations from design, provide sealed computations verifying that the as -built condition is equivalent or better than design. 9. Ditch Lines - Display the constructed location of all ditch lines and channels, including typical sections and linings. 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. 11. Guardrail, fences or other safety provisions - Display the constructed location of all safety provisions; fences, guardrail, including the type, length and applied end treatments, compared to design. 12. Material layers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths. Include inspection reports, boring or test pit reports and materials certifications. Biofilter media must be an approved state mix. 13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are required to verify fill compaction in darns. 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. DRAINAGE DESCRIPTIONS SIR. NO. PIPE INFORMATION INLET INFORMATION COMMENTS DIA. in. LENGTH" ft SLOPE °/s INVERT IN INVERT OUT MATERIAL INLET TYPE SLOT LENGTH RIM' ELEVATION 304 SWM Riser 18" 437.25 303 8 8.00 11.50% 429.02 428.10 HDPE 302 ESC Riser 48" 437.25 VDOTSTD. IS-1 REaD 301 1 24 141.83 8.46% 428.00 416.00 RCP3 UGD Contech MH 442.50 VDOT STD. IS-1 REaD 419 18 1 5.00 '4.00% 430.98 430.78 HDPE 40f MH-1 441.50 VDOT STD. IS-1 REQ'D 407 24 65.33 11.43% 430.68 423.21 RCP3 406 MH-1 437.33 VDOT STD. IS-1 REQ'D 405 24 31.20 16.00% 419.21 414.22 RCP3 404 MH-1 425.65 VDOTSTD. IS-1 REaD 405 24 61.00 16.00% 410.22 400.46 RCP3 402 MI+1 406.50 VDOTSTD. IS-1 REaD 401 24 48.00 2.00% 396.96 396.00 RCP3 Bypass 443.16 VDOT STD. IS-1 REO'D 411 12 5.00 16.00% 439.90 438.20 HDPE 410 MH-1 440.90 MODIFIED MH-1 405 12 46.05 1.78°/a 436.70 435.88 HDPE TRASHRACKS SHALL BE INSTALLED ON ALL ORIFICES, INCLUDING THOSE LOCATED ALONG THE WEIR PLATE WITHIN THE UNDERGROUND DETENTION SYSTEM, IN ACCORDANCE w/ THE DETAILS SHOWN IN THIS PLAN (OR EQUIVALENT). DETENTION SYSTEM's WEIR PLATE TO BE PRE -MANUFACTURED AND DELIVERED TO THE SITE. WEIR PLATE SHALL BE SECURELY AFFIXED TO THE PIPE. 3. ANY RETAINING WALLS AND FOUNDATIONS CONSTRUCTED IN THE VICINITY OF THE UNDERGROUND DETENTION SYSTEM SHALL BE REVIEWED AND APPROVED BY THE ARCHITECT AND A GEOTECHNICAL ENGINEER. UNDER NO CIRCUMSTANCES SHALL ANY PORTION OF THE UNDERGROUND DETENTION SYSTEM BE INSTALLED BENEATH PROPOSED STRUCTURES OR WITHIN PUBLIC RIGHT-OF-WAY. 4. THE PROPOSED PUBLIC RIGHT-OF-WAY AND ROAD SHALL SERVE, IN CONJUNCTION WITH THE PROPOSED SWM EASEMENT, AS THE MEANS TO ACCESS THE UNDERGROUND DETENTION SYSTEM. 5. CONTACT COLLINS ENGINEERING (434.293.3719) REGARDING ANY QUESTIONS CONCERNING THE UNDERGROUND DETENTION SYSTEM. 5. ALL FILL EMBANKMENT MATERIAL SHALL CONSIST PREDOMINANTLY OF SOIL AND BE PLACED IN SUCCESSIVE UNIFORM LAYERS NOT MORE THAN 8 INCHES IN THICKNESS BEFORE COMPACTION OVER THE ENTIRE AREA IN ACCORDANCE WITH CURRENT VDOT ROAD AND BRIDGE SPECIFICATIONS. 7. ALL FILL SHALL BE PLACED AT 95% COMPACTION AND TESTED BY A GEOTECHNICAL ENGINEER TO ENSURE COMPACTION IS REACHED AND MAINTAINED. B. PRIOR TO CONSTRUCTION THE CONTRACTOR SHALL TEST -DIG AT THE INLETS & OUTFALLS TO CONFIRM THE INVERTS AND TO ENSURE THE PROPOSED GRADES CAN BE ACHIEVED. CONTRACTOR SHALL CONTACT COLLINS ENGINEERING OF ANY DISCREPANCIES IN THE HORIZONTAL OR VERTICAL ALIGNMENT PRIOR TO ORDERING AND CONSTRUCTION. 9. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR CONSTRUCTION INDUSTRY (29 CFR PART 1926), 0. PENDING PRIOR APPROVAL BY COLLINS ENGINEERING, THE PIPE MATERIALS MAY BE SUBSTITUTED. ANY PIPE LOCATED WITHIN PUBLIC RIGHT-OF-WAY MAY NOT BE SUBSTITUTED AND MUST BE CL. III RCP. 1. SEE NOTES ON THE NEXT SHEET FOR ADDITIONAL BACKFILL REQUIREMENTS, FACILITY INSPECTIONS DURING CONSTRUCTION: CONSTRUCTION INSPECTIONS ARE CRITICAL TO ENSURE THE UNDERGROUND DETENTION SYSTEM IS PROPERLY BUILT. BECAUSE THE TIMING OF THE INSTALLATION IS DICTATED BY THE CONTRACTOR, THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER, COUNTY INSPECTOR AND CONTECH REPRESENTATIVE PRIOR TO INSTALLATION CONTECH, OR AN EQUIVALENT PIPE MANUFACTURER, SHALL BE CONTACTED WELL AHEAD OF THE CONSTRUCTION START DATE TO ENSURE ADEQUATE LEAD TIME FOR MATERIALS AND DELIVERY, MULTIPLE SITE VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE CONTRACTOR, WITH THE ENGINEER, COUNTY INSPECTOR & PIPE MANUFACTURER, DURING THE FOLLOWING STAGES OF THE UNDERGROUND DETENTION SYSTEM CONSTRUCTION PROCESS: i. PRE -CONSTRUCTION MEETING 2.. INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS) 3. EXCAVATION/GRADING(E.G., INTERIM/FINAL ELEVATIONS). 4. WHEN THE DETENTION PIPE SUBGRADE IS READY FOR PIPE CONSTRUCTION, BUT BEFORE STONE BEDDING IS INSTALLED. 5. AFTER STONE BEDDING IS PLACED AND COMPACTED, BUT PRIOR TO PIPE INSTALLATION. 6. ATTHE TIME OF THE PIPE INSTALLATION. 7. AFTER PIPE INSTALLATION, BUT PRIOR TO PLACING BACKFILL& FILL OVER THE SYSTEM. B. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE) PLEASE ALSO SEE BELOW, UNDER FACILITY MAINTENANCE, FOR REQUIRED INSPECTIONS AFTER INSTALLATION IS COMPLETE. FACILITY INSPECTIONS & MAINTENANCE AFTER CONSTRUCTION: THE FOLLOWING MAINTENANCE TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR FOLLOWING THE INSTALLATION OF THE UNDERGROUND DETENTION SYSTEM. 1. FOR THE FIRST YEAR FOLLOWING CONSTRUCTION,THE SITE SHALL BE INSPECTED BY THE CONTRACTOR QUARTERLY AND AFTER STORM EVENTS THAT EXCEED 1/21NCH OF RAINFALL. 2. THE CONTRACTOR SHALL LOOK FOR BARE OR ERODING AREAS IN THE CONTRIBUTING DRAINAGE AREA AND AROUND THE UNDERGROUND DETENTION SYSTEM AND MAKE SURE THEY ARE IMMEDIATELY STABILIZED. CONTRACTOR SHALL SPOT RESEED AS NECESSARY AND ENSURE ADEQUATE SITE COVERAGE IS PROVIDED WITHIN THE FIRST YEAR. ATTHE QUARTERLY INSPECTIONS, AND AFTER EACH RAINFALL EVENT IN EXCESS OF ',THE CONTRACTOR SHALL PERFORM THE ANNUAL MAINTENANCE TASKS DESCRIBED BELOW IN #3.. AFTER THE FIRST YEAR THE OWNER SHALL PERFORM FOLLOW-UP INSPECTIONS ANNUALLY, AND AFTER EACH SIGNIFICANT RAINFALL EVENT: 3. ASPIRING MAINTENANCE INSPECTION AND CLEANUP SHALL BE CONDUCTED ANNUALLY. THE MAINTENANCE PROGRAM FOR THE UNDERGROUND DETENTION SYSTEM SHALL INCLUDE CLEANING ITANNUALLY OF TRASH, DEBRIS & SEDIMENTAND ENSURING THE INTEGRITY OFTHE WEIR PLATE, TRASH RACK AND OUTFALL & INFLOW PIPES.. THE OWNER SHALL ENSURE THE SYSTEM IS OPERATING AS INTENDED AND IS NOT CLOGGED OR DAMAGED.. THE OWNER SHALL IMMEDIATELY CLEAN & REPAIR THE FACILITY AS NECESSARY AND SHALL PAY SPECIAL ATTENTION TO THE INLETAND OUTLET LOCATIONS. THE ACCESS MANHOLES SHALL BE USED FOR INSPECTION AND MAINTENANCE. 0i2.o" WEIR PLATE DETAIL SCALE:i"=5' OVERFLOW WEIR IS HYDRAULICALLY EQUIVALENTTO AN ORIFICE WITH AN APPROX. DIAMETER OF 013.69" MANUFACTURE / INSTALL TWO (2) 06" HIGH -FLOW -� ORIFICES IN THE STEEL PLATE (INVERT ELEVATIONS 438.75') MANUFACTURE INSTALL THREE (3) 06"MID-FLOW 20 ORIFICES IN THE STEEL PLATE (INVERT ELEVATIONS 438.00 ) INSTALL TRASH RACKS ON ALL g/// ORIFICES, IL, O SEE THIS PLAN FOR DETAIL, OR EQUIVALENT. MANUFACTURE / INSTALL ONE (1) 0 2 " LOW -FLOW - ORIFICE IN THE STEEL PLATE ATTHE LOW POINT OFTHE DETENTION SYSTEM (INVERT ELEVATION 431.001 1/2" zinc plated hook attached with 11/8' taetoner Isometric 1/4" HOPE plate (oplicadl) clrvuLlL3n ari!tee DEBRIS CAGE ELEV.=441.00' IN ADDITION TO THE STATE -APPROVED TRASHRACK, THE CONTRACTOR SHALL AL INSTALL A SECONDARY PROTECTION MEASURE TO REDUCE THE RISK OF CLOGGIN THE LOW -FLOW ORIFICE. THE CONTRACTOR SHALL ALSO INSTALL A METAL SCREE SURROUNDING THE LOW -FLOW ORIFICE AND TRASHRACK.THE METAL SCREEN SH INSTALLED WITH A MINIMUM SEPARATION OF12" (MAXIMUM SEPARATION OF36") BETWEEN THE SCREEN AND THE LOW -FLOW ORIFICE'$TRASHRACK.. NYLOPLAST DRAIN BASIN WITH DOME GRATE (FOR STR. 304- SWM RISER) (1,2) INTEGRATED DUCTILE IRON GRATE TO MATCH BASIN OD. e MINIMUM PIPE BURIAL DEPTH PER PIPE MANUFACTURER / (3) VARIABLE INVERT HEIGHTS RECOMMENDATION AVAILABLE (ACCORDING TO (MIN. MANUFACTURING PLANSTTAKE OFF) REQ SAME AS MIN. SUMP) -19 (4) VARIOUS TYPES OF INLET 8 OUTLET ADAPTERS AVAILABLE -4'-36'FOR CORRUGATED HDPE (ADS N-12/HANCOR DUAL WALL, ADSMANCOR SINGLE WALL), N-12 HP, PVC SEWER (EX: SDR 35). PVC DWY (EX: SCH 40), PVC 09001C905, CORRUGATED 8 RIBBED PVC WATERTIGHT J0INT (CORRUGATED HDPE SHOWN) 1 - !r - 30' DOME GRATES SMALL BE DUCTILE IRON PER ASTMA536 GRADE 70.5&05. 2 - 4' 610' DOME GRATES FIT ONTO THE DRAIN BASINS WITH THE USE OF PVC BODY TOP. SEE DRAWING NO. 7001.1101 3 - DRAIN BASIN TO BE CUSTOM MANUFACTURED ACCORDINGTO PLAN DETAILS. RISERS ARE NEEDED FOR BASINS OVER 04' DUE TO SHIPPING RESTRICTIONS. SEE DRAWING N0. 7001-110-M 4 - DRAINAGE CONNECTION STUB JOINT TIGHTNESS SHACL CONFORMTO ASTM 03212 FOR CORRUGATED HDPE (ADS N1241ANCOR DUAL WALL), N12 HP, 8 PVC SEWER (4"- Iin 5-ADAPTERS CAN BE MOUNTED ON ANY ANGLE 0' TO 36V TO DETERMINE MINIMUM ANGLE BETWEEN ADAPTERS SEE DRAWING NO.7001-110-01Z 6 - e' - 30' DOME GRATES HAVE NO LOAD RATING. (5) ADAPTER ANGLES VARIABLE 0'- Mir ACCORDING TO PLANS 4"MIN ON 8'-2r 6" MIN ON 30' 8 36" (3) VARIABLE SUMP DEPTH ACCORDING TO PLANS (67 MIN. ON 8'- 24', 10- MIN. ON 30' & 12' MIN_ ON 36" BASED ON MANUFACTURING REQ.) THE BACKFILL MATERIAL SHALL BE CRUSHED STONE OR OTHER. GRANULAR MATERIAL MEETING THE REQUIREMENTS OF CLASS I, CLASS 11. OR CLASS III MATERIAL AS DEFINED IN ASTM D2321, BEDDING & BACKFILL FOR SURFACE DRAINAGE INLETS SHALL BE PLACED 8 COMPACTED UNIFORMLY IN ACCORDANCE WITH ^TM D21 _ HOPP, dructu"I plastic with Z-1/8" holes and 1/4" plate sanulocturcd by Plastic Solutions Inc. or equal • shown wLLh optional plate HOPE structurnl plastic with '/B" holes and 1/4- plate .ufactured by Plastic +hone Inc or equal PLASTIC SOLUTIONS INC. 445 P.O. Box 4186 Nincsester VA 22M 877-877-5727 nv.pleMic-Nlwaaeem STR. 408 18" MIN. COVER OVER VDOT STD. MH-1 UGD SYSTEM, TYP. RIM 441.50' INV IN=430.78 INV IN=435.88 INV OUT=430.68 XSTR 1. 440 411 440 (INV.=43 ,000) SIR. 406. -. VDOT ETD.I ;n I RI =437.33' ri ii 50 INVI =423.21 FUTURE G IN INV 0 =419.211 W/L N 435 435 ALL BE z o 2 INV=43098 Lri� 430 STR. 404/ ; 430 VDOT ETD. MH-1 RI =425.62 12 LF OF 0120' CMP 0.50% INV I =414.22 Cam' UPLAND OF PROPOSED WEIR __ Dq D, o\° PLATE TO PROVIDE DETENTION @ q� RESTRICTIVE STEE� WEIR P TE 425 INV=43 .00 .. SEE THIS SHEET FOR DETAIL. PROPOSE D / RADE / STR. 412 // ILE O 5.00 LF OF 018" HOPE @ 4.00% 420 420 XISTIN GRADE Ov OOo bO Rl�ls 415 `'vQ 415 XX 410 STR. 402 VDOT $TD.. MH-1- RIM=406.50 INV IN=400.46 INV 0 =396.96 b ti° 5 b� �� OO\ b 405 v R PROPOSED VDOT STD. EW-1 400 400 395 395 STR.401 W IN =396.00 48.00 LF OF 024" UND RGRO ND 11_�PROPOSED CL. III RCP Co) 2.00./° - D TENTION S STE FLAT VDOT CLASS AI COARSE AGGREGATE OUTL w/ GEOTEXTILE FILTER FABRIC UN DE RLAYMENT. PROTECTION FABRIC 0 BE KEYED INTO EX GROUND 9" MIN. Al ENDS & 7 Q O ALONG PERIMETER. FABRI TO OVERLAP A MIN. OF 9" 39 0 i=10' W1=6' W =6' D=18, MIN. OM O LO N` LD O N rl- 00 11) LO to (O o 4 C6 cc N N O N . N MM O r'i I'i� '� <F T 7It CCD It 4 '1- 4OJ( 10-yr PEAK WSE=440.98 2-yr PEAK WSE=438..86 1-yr PEAK WSE=437.97 PROFILE SCALES 1"=50'(H) BYPASS SYSTEM 450 445M d - DIFIED VSTR 410 DOI RIM=440.9 INV IN=438.20 INV OUT=436.70 =0 IT 440 435 435 STR, 409 46OF01:8°[ 430 4 3 C STR.408 VDOT STID. MH-1 RIM=441 50' INV IN- 30.78 INV IN-4 35.88 INV OUT 430.68 -- 425 420 420 > > W W WO Li ,4-L0 � ~ m LC)N O 4 d' Lic. No. 035791 5 8/04/20 I h z z z Z w w w w 2:2:2: g o O O O V Z O J IZ} - a F 0 0 0 Ln CD CD CD DO NNN Z CD �00 Q O N ~LU ° a s a z a a a LU LU � w w w w WL>U WWW Ice lc� O O O LU Ti Z INV=439.00 STR. 411 (BYPASS PIPE) 5.00 LF OF 012" HDPE @ 16.00% 0 U r` M M 0 N T 0 0 N \N LLJ J J U) LIJ F-- 0 Q U I Y vJ 1 LU ry !Q (D O O N \ T V J ai 0 o LJJ Q Z LJJ Uj Q CZ G W I- 0 (!1 w J UJ ~ w Lu w a JOB NO. 182150 SCALE AS SHOWN SHEET NO. 19 0+50 1+00 1+50 2+00 2+50 3+00 3+50 3+75 0+50 0+75 HUGGER SINGLE BAR, BAND FLAT GASKET BOLT AND STRAP (SBBS) 7 FLAT GASKET CONNECTION DETAIL (SBBS) 2 2/3"xl/2" RE -ROLLED END HEL-COR PIPE GENERAL NOTES: 1. JOINT IS TO BE ASSEMBLED PER AASHTO BRIDGE CONSTRUCTION SPECIFICATION SEC 26.4.2.4. 2. BAND MATERIALS AND/OR COATING CAN VARY BY LOCATION. CONTACT YOUR CONTECH REPRESENTATIVE FOR AVAILABILITY. 3. BANDS ARE SHAPED TO MATCH THE PIPE -ARCH WHEN APPLICABLE. 4. BANDS ARE NORMALLY FURNISHED AS FOLLOWS: • 12" THRU 48" 1-PIECE • 54" THRU 96" 2-PIECES • 102" THRU 144" 3-PIECES 5. BAND FASTENERS ARE ATTACHED WITH SPOT WELDS, RIVETS OR HAND WELDS. 6. ALL CMP IS REROLLED TO HAVE ANNULAR END CORRUGATIONS OF 2 2/3"x1/2" 7. DIMENSIONS ARE SUBJECT TO MANUFACTURING TOLERANCES. 8. ORDER SHALL DESIGNATE GASKET OPTION, IF REQUIRED (SEE DETAILS ABOVE). H-12 HUGGER BAND DETAIL PLAN FRONT 48"0 to 90"0 FITTING REINFORCEMENT MAY BE REQUIRED BASED ON HEIGHT OF COVER AND LIVE LOAD CONDITION TYPICAL MANWAY DETAIL NOT TO SCALE TEMPORARY COVER FOR- . CONSTRUCTION LOADS HEIGHT OF COVER 7 CONSTRUCTION LOADS FINISHED GRADE FOR TEMPORARY CONSTRUCTION VEHICLE LOADS, AN EXTRA AMOUNT OF COMPACTED COVER MAY BE REQUIRED OVER THE TOP OF THE PIPE. THE HEIGHT -OF -COVER SHALL MEET THE MINIMUM REQUIREMENTS SHOWN IN THE TABLE BELOW. THE USE OF HEAVY CONSTRUCTION EQUIPMENT NECESSITATES GREATER PROTECTION FOR THE PIPE THAN FINISHED GRADE COVER MINIMUMS FOR NORMAL HIGHWAY TRAFFIC. AXLE LOADS PIPE SPAN, INCHES (kips) 1850 1 50-75 1 75-110 1 110-150 MINIMUM COVER (FT) 2.0 2.5 3.0 3.0 12-42 48-72 3.0 3.0 3.5 4.0 78-120 3.0 3.5 4.0 4.0 126-144 3.5 4.0 4.5 4.5 "MINIMUM COVER MAY VARY, DEPENDING ON LOCAL CONDITIONS. THE CONTRACTOR MUST PROVIDE THE ADDITIONAL COVER REQUIRED TO AVOID DAMAGE TO THE PIPE. MINIMUM COVER IS MEASURED FROM THE TOP OF THE PIPE TO THE TOP OF THE MAINTAINED CONSTRUCTION ROADWAY SURFACE. CONSTRUCTION LOADING DIAGRAM NOT TO SCALE SPECIFICATION FOR CORRUGATED STEEL PIPE -ALUMINIZED TYPE 2 STEEL SCOPE HANDLING AND ASSEMBLY A 36"0 MAX., HS-25 ACCESS CASTING WITH GRADE RINGS AS REQUIRED, TO BE PROVIDED AND INSTALLED BY CONTRACTOR. MAY BE TOP MOUNTED CMP (AS SHOWN) OR RECESSED. LuPROTECTION RIM/FINISHED ___ ___ p a SLAB GRADE __� ��_=� VARIES 0 ----- --- 4 V a'. 1° a - ,a a a GASKET MATERIAL 0 CMP RISER SUFFICIENT TO PREVENT m --- SLAB FROM BEARING ON E� w cl RISER TO BE PROVIDED BY CONTRACTOR. OB 11" TYP., IL N C7 SECTION VIEW ACCESS CASTING NOT SUPPLIED BY CONTECH 2. 0 A "O;OL B #4 DIAGONAL TRIM BAR (TYP. 4 PLACES), SEE NOTE 7. OPENING IN PROTECTION SLAB FOR ACCESS NOT TO SCALE THIS SPECIFICATION COVERS THE MANUFACTURE AND SHALL BE IN ACCORDANCE WITH RECOMMENDATIONS OF THE 20 MIL PE INSTALLATION OF THE CORRUGATED STEEL PIPE (CSP) DETAILED IN NATIONAL CORRUGATED STEEL PIPE ASSOCIATION (NCSPA) IMPERMEABLE THE PROJECT PLANS. LINER OVER INSTALLATION TOP OF PIPE LIMITS OF MATERIAL AND AROUND REQUIRED SHALL BE IN ACCORDANCE WITH AASHTO STANDARD STONE THEALUMINIZED TYPE 2 STEEL COILS SHALL CONFORM TO THE SPECIFICATIONS FOR HIGHWAY BRIDGES, SECTION 26, DIVISION II BACKFILL APPLICABLE REQUIREMENTS OF AASHTO M274 OR ASTM A929. OR ASTM A798 AND IN CONFORMANCE WITH THE PROJECT PLANS BACKFILL 36"SEE TYPICAL AND SPECIFICATIONS. IF THERE ARE ANY INCONSISTENCIES OR 1120"TYP. 36" TYP. BACKFILL DETAIL PIPE CONFLICTS THE CONTRACTOR SHOULD DISCUSS AND RESOLVE NOTES WITH THE SITE ENGINEER. - THE CSP SHALL BE MANUFACTURED IN ACCORDANCE WITH THE APPLICABLE REQUIREMENTS OF AASHTO M36 OR ASTM A760. THE IT IS ALWAYS THE RESPONSIBILITY OF THE CONTRACTOR TO PIPE SIZES, GAGES AND CORRUGATIONS SHALL BE AS SHOWN ON FOLLOW OSHA GUIDELINES FOR SAFE PRACTICES. TYPICAL SECTION VIEW NOT TO SCALE NOTE: IF SALTING AGENTS FOR SNOW AND ICE REMOVAL ARE USED ON OR NEAR THE PROJECT, A GEOMEMBRANE BARRIER IS RECOMMENDED WITH THE SYSTEM. THE GEOMEMBRANE LINER IS INTENDED TO HELP PROTECT THE SYSTEM FROM THE POTENTIAL ADVERSE EFFECTS THAT MAY RESULT FROM A CHANGE IN THE SURROUNDING ENVIRONMENT OVER A PERIOD OF TIME. PLEASE REFER TO THE CORRUGATED METAL PIPE DETENTION DESIGN GUIDE FOR ADDITIONAL INFORMATION. Imo -.TRENCH CONDITION EMBANKMENT CONDITION- BACKFILL REQUIREMENTS FOLLOW THE GUIDELINES OF AASHTO LRFD BRIDGE DESIGN (SEC 12) AND CONSTRUCTION (SEC 26) 1 MINIMUM TRENCH WIDTH MUST ALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE. THE MINIMUM TRENCH WIDTH (12.6.6.1): PIPE512":D+16" PIPE > 12": 1.5D + 12" 1a MINIMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE (12.6.6.2): PIPE < 24": 3.013 PIPE 24"- 144": D + 4'0" PIPE > 144": D + 10'0" 2 THE FOUNDATION UNDER THE PIPE AND SIDE BACKFILL SHALL BE ADEQUATE TO SUPPORT THE LOADS ACTING UPON IT (26.5.2). 3 BEDDING MATERIAL SHALL BE A RELATIVELY LOOSE MATERIAL THAT IS ROUGHLY SHAPED TO FIT THE BOTTOM OF THE PIPE, AND A MINIMUM OF TWICE THE CORRUGATION DEPTH IN THICKNESS, WITH THE MAXIMUM PARTICLE SIZE OF ONE-HALF OF THE CORRUGATION DEPTH (26.3.8.1, 26.5.3). 4 CORRUGATED STEEL PIPE (CSP / HEL-COR). 5 HAUNCH ZONE MATERIAL SHALL BE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION (26.5.4). 5a INITIAL BACKFILL FOR PIPE EMBEDMENT TO MEET AASHTO A-1, A-2 OR A-3 CLASSIFICATION, OR APPROVED EQUAL, COMPACTED TO 90% STANDARD PROCTOR (T 99). MAXIMUM PARTICLE SIZE NOT TO EXCEED 3" (12.4.1.2). ALL LIFTS PLACED IN A CONTROLLED MANNER. IT IS RECOMMENDED THAT LIFTS NOT EXCEED AN 8" UNCOMPACTED LIFT HEIGHT TO PREVENT UNEVEN LOADING, AND THE LESSER OF 1/3 THE DIAMETER OR 24" AS THE MAXIMUM DIFFERENTIAL SIDE -TO -SIDE (26.5.4). 6 INITIAL BACKFILL ABOVE PIPE MAY INCLUDE ROAD BASE MATERIAL (AND RIGID PAVEMENT IF APPLICABLE). SEE TABLE ABOVE. 6a TOTAL HEIGHT OF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS IS MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT (12.6.6.3). 7 FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS SHALL FOLLOW THE PROJECT PLANS AND SPECIFICATIONS PER THE ENGINEER OF RECORD (26.5.4.1). NOTES: • GEOTEXTILE FABRIC SHALL BE INSTALLED TO PREVENT SOIL MIGRATION INTO VARYING SOIL TYPES (PROJECT ENGINEER). • FOR MULTIPLE BARREL INSTALLATIONS THE RECOMMENDED STANDARD SPACING BETWEEN PARALLEL PIPE RUNS SHALL BE PIPE DIA./2 BUT NO LESS THAN 12", OR 36" FOR PIPE DIAMETERS 72" AND LARGER. • CONTACT YOUR CONTECH REPRESENTATIVE FOR NONSTANDARD SPACING (TABLE C12.6.7-1). TYPICAL BACKFILL DETAIL NOT TO SCALE THE PROJECT PLANS. ALL FABRICATION OF THE PRODUCT SHALL OCCUR WITHIN THE UNITED STATES. MATERIAL SPECIFICATION NOT TO SCALE INTERRUPTED BAR REPLACEMENT, SEE NOTE 6. 71,�,. � 2%2'. (#6) REBAR CAN BE CUT FLUSH - o ALL STEEL PER ASTM A36 TO OUTSIDE OF RAIL (BAR LENGTH = 16%") OR BAR CAN F FABRICATION TOLERANCE: " EXTEND BEYOND RAILYz"t - FLAT BAR AND REBAR: MILL 3/8" TOLERANCE APPLIES TYP. 12" TYP. %" HOLE w/ %" REBAR RUNG, CENTER TO CENTER WELD REBAR TO RUNG ON RUNG SPACING tD OUTSIDE OF STEEL RAIL 0 2Y2" x %" FLAT BAR SIDE RAIL PLAN SIDE NOTES: 1. LADDERS CAN BE MADE IN 20'-0" STANDARD LENGTHS AND CUT TO FIT 2. ALL MATERIAL TO MEET ASTM A36 3. LADDER TO BE HOT DIPPED GALVANIZED PER ASTM A-123 AFTER FABRICATION IS COMPLETE STANDARD LADDER DETAIL NOT TO SCALE PART NO. HALAGVLI6 PROVIDE MINIMUM OF 4 ATTACHMENT ANGLES (2 ON EITHER SIDE OF LADDER RAIL) TO CONNECT LADDER TO RISER EXTENSION RISER w/ LADDER AND STEPS IF EXTENSION IS REQUIRED RISER w/ LADDER AND STEPS MAINLINE CMP 22/3xy,5x1,3x1,ETC. NOTE: THIS DRAWING IS INTENDED TO APPLY TO LADDERS INSTALLED IN RISERS HAVING A DIAMETER OF 30" OR LARGER. DUE TO SPACE CONSTRAINTS AND LIMITED ACCESSIBILITY, THE PRACTICALITY AND SUITABILITY OF UTILIZING RISERS SMALLER THAN 30" DIAMETER AND/OR INCORPORATING LADDERS IN THESE SMALLER DIAMETER RISERS SHOULD BE ADDRESSED BY THE OWNER AND PROJECT ENGINEER REINFORCING TABLE "BEARING 0 CMP A B 0 REINFORCING PRESSURE RISER (PSF) 24" 4'0 26" #5 @ 10" OCEW 2,540 4'x4' #5 @ 10" OCEW 1,900 30" 4'-6"0 32" #5 @ 10" OCEW 2,260 4'-6" x 4'-6" #5 @ 9' OCEW 1,670 5'0 38" #5 @ 9" OCEW 2,060 5' x 5' #5 @ 8" OCEW 1,500 5'-6 44" kj" 5'-6" x 5'-6" #5 @ B" OCEW 1,370 6'0 50" #5 @ 7' OCEW 1,210 6'x IT #5 @ 7" OCEW 1.270 #4 DIAGONAL TRIM BAR (TYP. 4 PLACES), SEE NOTE 7. I v---- ')- C-_ _ t+ _ 2" COVER r--- II i''' .�, II (TYP) II I I P IIIII�� IIItI i�`� IIf F-t-- I� i I J I II I % I OPENING IN I 11i-_ �a t 111 PROTECTION t-'r ------r�--� -tl- -----�I- �--=1-t---- SLAB FOR F --- III ` �' II ACESS I II I` i ♦ I II I - ---r� - 'Cj-----IJ L- - STANDARD STANDARD REINFORCING, REINFORCING, SEE TABLE SEE TABLE �____ I I I IT-------c TI----- ) L - -_ `I-----=C---_� II ii�' Il II I 11f L------ l �it III a ails_ I� 11'I I 15�=-_-�!-_--AIL==--7 II "I�-.�- 1 II II i� I II Jl____1L---- J II V II 1 I I I II I OB INTERRUPTED BAR REPLACEMENT, SEE NOTE 6. ROUND OPTION PLAN VIEW SQUARE OPTION PLAN VIEW NOTES: 7. TRIM OPENING WITH DIAGONAL #4 BARS, EXTEND BARS A MINIMUM OF 12" BEYOND OPENING, BEND BARS AS REQUIRED 1. DESIGN IN ACCORDANCE WITH AASHTO, 17th TO MAINTAIN BAR COVER, EDITION AND ACI 350. 8. PROTECTION SLAB AND ALL MATERIALS TO BE PROVIDED AND 2. DESIGN LOAD HS25. INSTALLED BY CONTRACTOR. 3. EARTH COVER = V MAX. 9. DETAIL DESIGN BY DELTA ENGINEERS, ARCHITECTS AND LAND SURVEYORS, ENDWELL, NY. 4. CONCRETE STRENGTH = 4,000 psi 5. REINFORCING STEEL = ASTM A615, GRADE 60. 6. PROVIDE ADDITIONAL REINFORCING AROUND OPENINGS EQUAL TO THE BARS INTERRUPTED, HALF EACH SIDE. ADDITIONAL BARS TO BE IN THE SAME PLANE. 'NOTE: WHEN RISER EXTENSIONS ARE USED, THE PLANT SHOULD CUT 3" FROM THE SIDE RAILS AS SHOWN 6" FROM RUNG TO RISER JOINT "3" FROM BOTTOM OFLADDERO RAIL TO RISER JOINT "3" FROM TOP OF LADDER' RAIL TO RISER JOINT LADDER RAILS AND RUNGS (2) JY44" FILLET WELDS 1" LONG ATTACHMENT AN( L5"x3"x%4"x16"LONG ATT-0' MINIMUM OF4ANGLES F SPACING. LONG LEG TO LADDER SECTION, (2 EACH SIDE PROJECT OUT. WELD TOP LADDER) 6' MAX. SPACI 1'-6" - AND BOTTOM OF 3" LEG TO EACH VERTICAI MAX. CORRUGATION CREST (THESE ANGLES SHOULD BE USED 7a_FOR LARGER DIAMETER W MAINLINES WHERE ADDITIONAL STEPS ARE NEEDED) RISER LADDER DETAIL NOT TO SCALE 6" FROM RUNG TO RISER JOINT RISER NORMALLY CMP WITH 22/3" x y2" CORRUGATIONS (4)Ye" FILLET WELDS FROM EACH ANGLE TO CORRUGATION CREST (2 WELD EACH SIDE) L3"x3"xYj6" �z LONG MANHOLE CAP DETAIL NOT TO SCALE (4)Y6" FILLET WELDS FROM EACH ANGLE CORRUGATION CREST (2 WELDS EACH SIDE) (4) L3" x 3" x 5Yz" LONG (2) Y44" FILLET WELDS 1" LONG FROM EACH ANGLE TO LADDER RAIL LADDER RAILS ! _ - ----- -_A ! _ I _ (4)y6' FILLET WELDS ! - FROM EACH ANGLE TO _ CORRUGATION CREST ! (2 WELDS EACH SIDE) L3" x 3" 06" ! _ 5Yz" LONG ELEVATION LADDER AND RUI G SCOTT /R. "'�'LLINS Z Lie. No. 035791.a P 3/12/20�� O� ;&nhJAT_ V:�G_ cn F � z z w w � 0 O O U u z > O Z z F ¢ z Z) O O u o " Z O O Q K u z a " N 3 z O t] �Ln 7z Qti Z M � N M f). N O W_j N J N 1- I W < >I T� Lu W T 1 0 Z J 06 Ln Lu Lij O o L9'O T� z J e zQ o = z U Ln Q W I I- Y Lu U Lu CO Oof H M U W W ILL.Zw J z i W 'Qn V O 0 O O O N U rm JOB NO. 182150 SCALE AS SHOWN SHEET NO. 20 ,///!///J'////i' ��-._� J / I - '-_-__ i/i/� ' i/ / / /',I////'� /////J//�'!�l /l//'ter I II rl �. l'-gin\ \ P C -i-�°n IIu ,I,,'//-=\��� \��\\ �`�� �'_ - _ -_�_ I 1 i / / // i _ �\ \ - ---' / / / I I \ \l\\ // II / //' /`- J� 1l ) \ _/._ "^� _ _ _ - '- ° ��///ri /`------- ,-1 \c\ i ,''----_--` , ' �' -/// / /// /// / �/ / /, / l/ ///IIII I I �' , ,\ \ \ \\\\, / \/ I l^\II / /////\� -,/ . — 1 I I / `' i , �Z��F I _ ` �__ _-__ / \ \ �- - J - ' /' IIII /- }ll� I\l/ \\ \\ \ /- 1 1/ IIjI /% \ _ i / /-, \� _ i. _� ' iii/iii/�/ / --- �.. /-\ \ \ \ \ \ \ ` - _ - _ - - - _ - _ \" '-iii9✓ii// / /- \__� \\ / \ ) \ \ \ \ \\\��--'�'�'�-�- /- //✓✓'''-',�'-_ ,/I'//I/I,, �\ \\\��-. �". 1\\1\\S-_ \Ill ''III%/'j//%-/ \\\ /__ II iii%- _ _ _ -- - - H D /, ii�Gi�c/\1 l / --- - , \ / / \ `\ \ \.\ - /-- ' /iii _//[!J J //�h ` \\\\\` _ i \ \II 1 ll \ 1 \1/ I1^ i / /��\ - , _ \\( / _ .�.� -'� j- T I`/ II',, / �,-,f /-'1 �'\ OLLYM EA \ III , /(/i\\\\\\\\\\l. l\ _- \ __ -•\ /// \ \ �� \\"� /-'--,//--., //, -/ - / III //( -11 ..\r: _ �1 r it _ -;� LAKE �� \� �/ , \ \\-/��\' \ II .�r�=.-. j�`//'// /�i-i�� /�' /- „\\\\.\\ - \ \ 11. 1`\ 1 r 11 /\IIII//i �� / \�_ i r` ['. �' " \ \\ /\\-' C \ 7 \` I f/,/ /,' \ \\\\\\ \ \-\ \ t\ \� /'\ \`--' / / -- // \\� \ \ I 1 / // / J / / \ \\ \\ 1I 11 I // / ' I _' ( I l'- 4 S \ \ \\\\\\ \ \ - \\ _ \ // - ---- i-_� \\\ - \ /III f� __\_- / /// / i'i/ \ \\l 1_\ �IP.I I/ / / // I I I '- 1 "-1 I� i_ \\ - , \ /` �; /I '� - /^�._^ V A A A VA VAA a V v A \ _- / � _-/ __-' _ A ) I 1- --_A', // I // , -, / / -- \\ V A_ - - A A V )A V �-_^III/V /(1 ////// I 1 I �, / 1 _ / A V AA Vvyvvv y � vA , - - _' �_� ---- \ �. /1, IIII ,-__- -VAA l /, / / A\_. �? v_ Asl/ l I I ' _I I.�__� '� `� /' �( -.i/ A -� �_ / V AVA AA VAVAAv\� _�� a VAS `_- --`-____-- �� '/I , /- ,� - .11 I / 1 \ -' ' I� /�V'\\,,�\' I + / -- �/ _ Il \ \\\\\�\\\\\,� `��_`\\\\\\\\\�� _- -, :`_-_- ////,/Ii 1/ii-/� \\, �)I I:I/// / / __ \\--_ 1 \III' ! f . _IIII. II11'/"/ ) i' J �'�I � -J _.� _�� __ r, (\+ I I < ` J I \ \\\ \ \\\\ \\ \\\\\\\\\\ .< , /'\ \ _.. �� / // II/ / / / '-\��\\ 1 /�I/ // / '- / I \I IIII I - lI _ I 1 \� - _—, __ - /�_ r }__ / / I \ \ \ \ \ \\\\\-_/�\ `� `� --- \ // /•//////�� `r �I I1// / `� \ I \ \\_ II L, I'// ,J I�. ' , 11 I /� /' __ \\rr \ / II _ `\ I �� ,, \ / / A V A \ - vVAAA A vv - � �� � v - AA - v� _ f / _ _ ���/1.1 / i' J / /I 1 A 1 A III _ A �� �A I 1 / I 1 A A V v A \ VAAAA vvv i i^ Av vv�VAA-F--'iI /l�: i////- /,\ '\I�i/ / �v I f / / / I I 1 / IIIA '- �� I �r�i-- —_��� ��� �� �� � : 'i - ��\I i(� ,I . ` - I / / / 'I 1 A -_ ` V AAAA- __ - y - _ AA vN V ( /Jl / // iA A V(! / /- I / / / I 1 A A II ��__ ', .I I 1 /��\ / A` A ' �/ �� ��� __I / _�__ _ \ _ A l / / / 1 \ ! \ \ \\�; \_-- \ -_ \ \, \\\ \ ///// // // /-�-,\\\�, \\\/,/ -I I I / / / � � ) / �' f �; r^_ _�/ / � - l , � � � � \ \ / / If / I I \\ \� ��` \ \ \ \ <//\\ ( /////�/ // i/ '/�\ \,/ \\ / I' / / / / /�/' //// / / 11 �, 1 '� iwo� _ l I 1 �:\l�' _�_ / r ,� �I ----' 1� I \ \ '/� �� // // 1 \ J//! ,�/./ ///////' /� __ ! I I I I I / `\ �\ `�_ ♦_-_ �,' / \ r \�\,�. `\ / �r�: I \ _ HOLLY SAD '/� I - \ //- -/// , / \\\ \ \ -/l / /// / 1l�/(/IJ J(// //////� _- ' / I (.I I \ / \\I '-__ I -/ ' �r-�;:_:. —". ..v / - I / / -� vV v ( \ / / / / / / I I V >� V A'-'i ',/ /� i - �v V Av, I 1 // )- J/ I / / / /� /// / �y /�/// ///////// / / / r�■■ �i \. {`I ���■� �■ / '' /� `t // �� A +� �• A �� r -�' _�v - , , /,IIII /, r / /� IIII ,/�:/,///� // I I i .• 1 1 ��•r ..,�, tlll.r .� ,� ��`� :'� ����-- �; y. �� �/ �.� \„_ ), �`, �`��`��V V V A I 1 , Av v .. / /-- /' /� y////� /,'IIII --� /// /, / // // ) �� �� ' •� ♦I II ,/� < � �a �,� �. I A■ �� _�' --�� f \ �� �" \ �+. �� �i' l / r 1 \\ AVA �\ \y vv..-I / /'///I-/ j//// �O/-'-__ ///f//////// /// ♦��-\-,_ _- - ■ ♦ \ ,\ :V /, '� �� �/ _Al +����'� v �A / _ \ % v- I',' %� 1, r / / / \ \ \ I 1 '\_ -i' /ice/' / /' /-i i"\V // JI IIII f / I / / l --_ _ A ♦ I l I I I / / ! / // II ✓ - � Y Ir_ _/..` I - / \ ,/ i/ /'�''/I I (``/ _ / j'/ / �'� / " Ii '✓ / -_ �/ , f \ \ 1 �. I I ,// /,` --- \ I \ 1 I L 1 1 1 1 (/ /' I i',. /� -\� `/ - ' �+ ,//' y/ '� _ i _ --I F----� 1 / \ _ '/ \O / / / / % /11 �____ //_- / --_=,i//\\\v/ /,-_. /// 1 1 / / //// /- 1 )4 '-, I \ \ 1 ,, _ �I I ,,. \ „ \\ \ � �. II I / / -- / ,/ 11 '/' //I/-l\ � /,�/\ \ // / / I / /, / / / /-�\ 1 1 \ T- \ \ 11 1 I 1 I\I \\ `-� e I I %. H@ Y AD - - i .��' /%` �AI � '1�' '\ - \ \� % - I- / —�V _ / ;\\ _ `__ / -`_ \\\ I \`\ TOWNH MES.,\\ �� OLLY�IAD,, I r / /' \ 1\ 11 I 1 I r (/ /� / _ I1\\ \. // ///// \ \/////'/% - /-_�,11 I I 1 �1111I 1 // -e l I 7�^I�`r'_\_��`\�\ I _J /"., ,'� - v 'J ��- \, \/�\i �I ` -- r--�\� ,�'•�.. \. \. -,`,/ �\ �\ f _- ,\ \ / / r / - / p v ---_-_ / _ - A I A / _ / / / / V / T I f - - / \ + (s { \i r IIII \ I�� ��� I' > II C \_- ,-- /`- I I 1 1 / / / T`_, �--- / / / l I I I / \ \ _ - �% ! \ / / / I I I \� I \ \\ —=� � \� '��: \� r� � I \\ �. / - __'� -_-�' / / _-_ \ --- - -- -\ �/i if I \\ \ , - �/ / I -I\I 'I' I I �' - - ■ \- - - _ (\ /J I. I. 1-� /' / \ I I \._`\\/ Jl7`/ ,� �� - -IIII./ (\ \_'--- `-I I__- ! / / \ Ir/ l� -_ II ' / �` '. _ /` _ -J l f I - \ \ \ - \ I -' -- + `� � __- _--` / \ \� _ _ \ _ - -/ �) /; 7I'I I',. \- / ; "\_ / 1 (III;. !_' ��` n \ `a./ 11 t - O I I \ / \ \ - \ \ 7 I / 1' \�\ - � l l / J \ L C- - I / - / I \ / ' 1, I I / , _ \ \ I 1 ' \ / �.� _ \ ( \\ \. _- / /- _ - -- _ _ // / ' Ili', �`-,-, f -�' ��, \� \ - `\�/� H �. �\_ ��� \/ \ \ / \-I l - ,�\\�, \�\�� ...\ \ \ ----a-- /./'Y \ v. / ��__ _ �1I I 1 i. _ / 1 // \ , _/i - ,,.,� \/ j/ �� y --_ `1 ♦ \ 1 / / / % / ♦ i , �� ��\. \ \ \\ - <\ /--\ \\ _.1 - I l / -= 1 III /, ' `, T,i'! -///i//Ill l I I\ i /�ril-/_ .\/ �� r.,, \\ C\ // I '� C _ _ ' �\ �f -� 1 \ / / / / /,--/,' - / \ \ \ \\,\.: \\\ \ \\ \ `� \ / \�/. ( /\ f(`�.. / it I \_ JT_- ) 1 -\ / / / ♦ �' / \ �, N\' �� N \\ \\\\\`�\y�\ \`�`�� -- _._' I / r�='r <_ -. _.�r I�\ ly\p\ Q'. I I 1 E I / _ '\ ! l '� I _ :.� �. I l / / / / / / �.�� \ \\\ -f.��` _ \ - -� __J \-_ --_. �Q"�y_.%.- /.. j i I/��'S, r'L I'I I f,`.I`��I/II)/f//\\' /\ _ ��,�� , _ _ _ \�/ `� I > i i - / / /- ■ - - \ K , >\\\\\\\\� ter. \ \ \. _ \ I / / ) �4'\r� -_-1 I! \>�� - r III /- i// J f_ \ _ ��- 1 _ / `\ i \ V 1 I / / / / -' /' /� - \.. AAVA���� A� AAVA_. •�___- ' / A f�. �- I.I h\V-v , ( (lIV1 /_//-_ =A.AAl JIFI.AVAA .A I A i, _ '/ __ - '�v 7 > / ���� �% C / 1 - v< / -- / I 0 � vv v vv v y~-�; _---vvv v v vvvv,, y - - / v yv � 111 �VAv.1 I ' �`\11 `vim__--`�- .v"'R;.A� I I I11v'.( v V ) L!� - __ _ � ,. + -ter- v - A� VA vy. -_ A A vn 1 v I vAv=- =AAA AA �_ _A ,/\vv V / _ -.V �' �-r / I - -_ A A v `v y.A AA v v v�"vim. -_ _ __ _ - �I 1 �. 111 �i -..v v �v v V\ll A\vAA vA'1'ti- i y v A/ I I (' - �'I . �'\ �I �/ J - v/IIII 1 1 1 1 I I. v _ vv v vvvv V. v .. v A v v' l�/. �q �_ �' ' l /- I vv v v A mayv v \ _----�I1111 IIbllll I /il \ .y /v vy���\iVvvvv v v A r �.,� \1 ( - ! +,� -� V r v �� - V 1 --+1 V. VA v v A VI I ,,y vv a - VI .I ( \\ 1l'11 A-_ VA`AA VvA A //I. _ V v A \__ _-- �. _ ,./' V AA v VA -vAv vv.,., .,,, - _._IIIIII III, .i I'l I 11) + -- vAA�,�AN.AAVAAVA _.A �A VA ;/, `/ i �' �� L-_r. - �`_ - �' �' ; v J I v v vvvvvv,v II� 1/ 0 v vvv�vv+ �/v�vv v _,,' r — /, . �7 I l� �/ vvv r A �� /�� v `_ / l I A \ \V A ,.< vv VAvvvA�w�„ -. - `4111 IIII Vlll'+�. � 1 I ll, , I / A A \VAVAIAVAA V�V\„�\��� \��__'; I__—_I�'�/ ��. ' � ',<��._��._,: / -I / --__ v _-� I -_- / / J `v v A v v A,yv _ I , I° I, - A A 1V A \ \ yy 7 v A '� ( - A I I: 1. '_ _ ,.. / ' __ // `vvv\v A A _. /-�1 A.. n' 11 ' / / � / / v vvv�v1A'VAVA\\.\vvv` , V--- `�� 1AIII �A...I ' IIAy,A\AA' '� Vv\+�vOVAA\r Vvvv` - �v_ ��- I`�<_ -- + _ - - -'-� / � _-/v v A A ^v - ,: I f l v l l/- �-1 ,/ / I v V.1 11 j \<`,vv vvv - v v v �'� --,I11V � .v VA v `� v.���� ,,-- w � ' � , �/,(�v� �� + _ ■� � I 'I �, -I- I ��/ � �/ � �. / /� ( \ -� V I f / V v `v f l /'� // /,J''--/ / / , 1 11 1 VAIA v V ` vv A A ,�II 11 - I I��. � v �I` / v ` \ I - - ,. AVAvv VA�vv L` - /' I f `I- - -��_- _ �• / A v A / + A A I -- -� / \ ��� I I �� /. V A ///`, //„'/ �1 !-�/ / /'11A \ V.'VA VA vAAv.� -..�\ _1 I _!I I ,y�,V�VA1" iAvVA\�:1 -V - AA _ -` - _ - _ �' \ vv J 1 V ',' I / r Vl.. - / l /' vv \ v! v v vv yv v .�'* y�1� ', / y': v v v '`- v yv ;'Avvvvyvwv v vvv. li'I,. , I - - - �� ��.. - j" '/ �'',. /l�'` V /� S \ �\\� I� ■, A A v. I;"� / A yf�{ ," 1 v r l 1 'aVV A A11v .may 1 /..I - v v A-_- , �. ,VAVAA\ \. �A i� _/� ,i i'., v ,. - - �'� ■ _ �:"'(II' / A v A. �� A , \Vc I �'/ L vA /v- /LS''I-11 A - / / /,,/ / /_'/ LaVv /_'�v vim__-�� I� l rv`�Av�v `'� AVA v-� ,/'i /AVAAA v��v v//,;, __—��/'. ` v" _ � - "J� \� �' '��-�. 1/IIIIII , �•,\V '\ A V 1 V 1.- I 1 -�.�� ' ' _.;..- V / //A A f \ / ( / /-, / I I I 1 -\� ��- -i I -// / v� Av..,_ , .v.. v._ I / / A _ -/I/vvA nv:A. i,/:_�- , i:, u - - v �- - ' _-'_� I I �I - :y i I'.I II / \ \ \v 1 1 VA ■ -'A, %/ v A / v/ vvy-_-_1 / / Av-_._ ♦VA-_ - _�J1 //�J) 11 +� J', 1'-: ��- ��� ,�� �� i��-� ..I '/' IIIIII �, / 11 .vry I di_ 'f �- +/ / /♦ 1 I A.I -v - ,I II 'V ( \ A:_- -__— ,-' - v I' A III _ _ _ v / a �v A v A / > -1 _ __ - - - - IA\ „< V "vim/ r� v ////i v J 1 li�-„�. L�r--T�I,II - >\\1.:_— A v -� v_ r/iz- -./ + -- -�. � y / __ A v AI �1A'L� —7 ,IIIA - - - - Vv�AA v tv / // v V flv �. /,/ A - -ter / V v-_ 1 / J -'VA I�"li`P=`�c_l>_�-__ __ _ "i i.;_// ,, �' v _ A I / il!I �. - v v v \ v I, l l / v v // / I ! f . / ,I I _-, vv � � ; _ / , �� I i ' r v 1 1 - ( • v 1 V I/ �1 \ h i / / / y '/ , A -- A--- A 1 f 7� _� A\, ���= J t ---'ice-" ;� , �.. �� I J :. V. I ` "'I A� ° V 'I A- y / / l , A V v -,///, _ - , / ) r 1A -A_� ,/ - `�--.�C%iS \v \%� /j +� __ . '' / '' �/\ V I Il IIII _ - :I;I, �` \ r / l \ ll \ \ i I _ i / n - / - I I �_-� - \i I-;= -- _���-1C\\\\\\� �\ \ \ \}_', ,/ \\� ��� i /// \ \'v 1\\ll \I _ 1111 / I 1 -- \ 1 i / I \/ 1. l , I / /, \ ll I _{I //- \. Y- \ _> - - -max. \\ \ �� \., _ \c %, /\ / I I // - \ I 1 �111 i I 1 l / I !. / 1 \: . � + I, ! J - / _ -/ / , �� _ / 1 1 I / / ; I I 1 1 '- / -- - , '>`r _ _ - i/_- �__ -`" ,\\ \- _ \ � _ -`�- \. / (( / '\ \ \ \ 0 11 /J _ _ , r _ \ \ \ \\16 I \ __/II I i- I l/ i 1 l \` �'\ \ / �\'-' -//-_ --/ / /\ !/./ m IIII/ _ _'/, - - '�\\,\ \ - "-�' �I // - \\ ,/`-I I If �I I�i��-- _�I 11 / \ \ \ - F \ I I III / , \ \ I I\., / / \� -'�'-/ -- - \ �- / !1 1. 1 'N --� - i y/-�_ .-.\\�N\\\ \Y / _ ' I - I IIII / 1\' \I II __i I '1 \ \ \ \-_ Idl a 1_-_ �I .l \ \ i / , - / / -" i� _- __ �.___t --I/, l.. l `O ">,_ _-r / , \\\\ \ I _ \\ \.� \'. l \ I I , \ ,; \ l 1 d \ S' _ '-_ --__ �___ "' 1, //'/." �---_/��___ _.� __- - _ - _ ; \ \\\\ \ \ I1 ,' _ `, \\i ` I IIII, I / 1 \ I \'--i - - - i. ___ ( I \ \j___ I I //1 r i I \ \ `-_'�///�_--__- \,.,` - ----- -- _-\ / / �. r - \ '_ --=_�i I` - \ �� ___ / ...\ 'I1\\\\\\ \ \ 1 1+. _ \'I�' -- . � \ / //� \ \ I 1 - 1� I \ .\\\i'=i"i, \\ I / rl I -..I- \ k 1 \\ '- --_; -\\\ -- _ // .. f - i=_ \_ / _c--� -� //\\ \ _ /�/� _ \\\\ I\ \' L`. \\I \ l- ,i !( l/i ] I \\, \ - li I I ,. � .-� / _ \ I I I 1 ly\ - - \ �< _---_:.. ---'. / ' --'i rS- _ �-_I\ / '�C.,=�' I --.. h-\ \\\\, , �✓ I� / -♦' --J �I I I \`--...I '\ 1!I /'JI +. \� :\/--...:�\< �/ it// \> I / \\\��<\/_. __-,_a-. �__r /r \\�..\`-/- \\ \<`./111,\\1l I\�i "I l '\ = 1 / I \\ �� / i r\ \.` I �/ - 1 ' --_- \ \\ �� \ \ -.--': - :/- I\� �/ / \` �., \ _ / I 11\I \.1 /I II _ i. -\ �,/ / - II n..� \ / 1 I; ! \ .E / i V \ \ ll., \ I l \ \ - \ .�j c, �-, _ I � \� � / \ ``\.. / /. 1 \ �, I,\\\ \( \ I :. ////y�� /, ■ 1 / \ \: \ III I rr " 4 Y SCOTTIR. CnI INSZ Lic. No. 035791.1, 6/29/20 1,14 I to H Z w Z O V w � � O w � � O Z O a K J yy z 07 V H Z O H Z O w 0 Z m n J Q � . Of o N W N N 2' 0 N N . � K " ~ a g a 5 a a 3 a 0 M 0 � � W � O O w � � N N H m M N O\i Q. .--1 .--I N \ \ I \ / :I a / I \ \ - - _ I� - - \\ I I I 1 1 I `\` - \ .- Il \ <� - / - \ 1 I 1 f \\ 1 - - \\ -� - � III � I I\ 14\\`/a^Il\1\ ��\ , , \ , / \v. /` 1 \ - III '' �I I .% 1 r _ -//,/I \ l I1 1 1 1 + /j/ 1-\r\ 1 �II y.' I , l/f I \\ \ '',IIII \ 1 / \a \ l \ \ _ ^1\\ ' \�\ -, ;-.�!\ °, - _ \ I \ / / ',,IIII / __� `y �.-__ _ _I I l r //// \ r. \'.. \) / \ \ \ \ \ 1 /^ `, // / �. I / OVERALL DRAINAGE _ \ i I f I �- \I - - _ -- - _ C / y� iA ` '\ 1 \ \ \ \ \ l t l \ - , -- f AREA TO CHANNEL - - ' \ / - - �' 1 - 7 �� /' \ ! \ \ 1 I \` \ _' �_i 1 �� , �ff / \\ \ \\ I \ y\ \ \\ -- \ IIII ✓ i IMMEDIATELY - /-\ \. I / /1 - -- / ( - %�z \ / \ �\\ \\\ \ \ \,_ - \\+ f \ \ \ \ )\ \ \\ \ 1 / /( \ \TEMPLE -0 DOWNSTREAM FROM / .,F, i. I V I \ \ \ \/ , ' ,./ \■ / _ \\� \ \ y_" \\ I �� / - \ \ \\ \ \\\\\\\\\\ / I � \ �- / - / 11 \ (_iil I .`,/ ', �- -/ III If ,� I !\ \\ �� / I JO-:' /-_ \\ : \_ �_.\ \1 \1 1 \ \,�^'� , \ 1 \\ \\ \\ ��`��\\�''� / ;III - , . \ I ACRES/ ,� SUBAREA 2 (635 BC.) - ,,:'�`` / II. I I' q ,-.- �_ �,.; /� -� ■ ,' , \\\ \ \_/ /- - , - -- \ \\�- \ \ / I /. I ) I '- 11,1, i -__ - \` '1 v __ /ram_ _ \ \� \__/. -.,� / `J\1 -.�i ,"` \ 1 \ '-' / '/ I ' /1 •/ ////'/ `; \ �`/. \ \. ! IIII .",_"�.�! \ / II /O - / - , //', 1 / ) \\ � - / ,, I '�' �. Y\� \ \ I , / / / / / �\ I IIII ` r 1 \ t .\ _ \ /l/ 1 \\ ,\� \ - - - / : i \ III i -�\^ �\� / - , ° 1 -, t\lI .,f �,,\ �\ \. \\ / II/ / r , [/.Ill '-/ / / ,,_ // / ■, I --, \ ----- FOREST LAKES SOUTH - '- ��. , ,'00.� / , ! > c_ _ _ I \ ■ �� \ -� \ I\\ r ;IIII \/' �,: I t+- /AvIIII v vvv v-/ 'l/ / IIII ll.(lIl l /i�/ -' 1 1 / \ y --- ° TOWNHOMES / �' �\ / _ / 1-\ J111 \ \ \ \ / / I. 1<"-, I / - III /—I I. p. �\ f/ // ■, _ \ / \ \ 1\ ,111E \�s / \-`�; -� _ ;-,::. _/ / "$.ice/./I I \\ �,\�_\ _/ / // // / Il..h'fl I ! / '-_ 1. --, / _-' ' \ ,. 111j �` ,. I I.I / ��i' �� \I \11� ` \\\\\�1 1. �� i` _— _—__ ' f�, ' / - \ / 1 / r ,..\1.\ \\\\1 \\ \\` Ir r_! //// IIII )/./ \\ \ ;•\ \ \ \ \\� r ,\\ \ �_. �/ - l ':` jl \, ,/-- / -\ \ - _ 'w _ - _ — III _- I A VAAVA/_V A AA v ////'/IIII Ill/ V-., A V A v V A _aI 1 j - ;j, ' v'-`�.� `� �V a / �, i� \�IdV 11 111 I /°•• -- '` - it vvvvvvvv V vvv v�///I1/II vvv v v v V A - - /_ l / ) V I v `- i- / // / I �� v AI �+- - - I - - I / , / / I -- -� ' ` ' V ,/ �� _i1%� '-1 1A 1 111 I J I �� //"-7 \ IVA1\Vl - v V vA I ////r//l /llI -1 �_ �V A / ■' _-� '= // �: �/ 1 ' ' I �\n __ ., _ - - - __ I / ' _// Irl °z AA1V - v v A //, ./!II/ ✓_",- /`/ / /' /..I / i _ 'I \__ _ __ _ __ _ _ �i , 1 1 / /l I 1 IA\Vv� �/� // /l!l 1I v A 1 Al �� _ A �,� /// /, /� -t/ -V l � � ,'-w 7/ ��� I� �j_. l I �_ VJJ ,% + , _ /-//.!I -- 1\\ q�t\\\�I�r/////.I�11 I I• a \' \ \ \ I/ --� �- / -- --I f _ �,1 �, - �� �.�'� X -� , I 11A A vvv /// j//IIII I �-.i `� 1 1 1 1 V _/ I i I I I'V. Ay / / _ __ .. - , , - - - / 'I ���,... /_ _ _ �y �`''� ,\ I ,/ _,/ A\ \ --' i`_' I I \III \: �Ii i/ IIII// I _\°,' - I I t.\\ \ \\ I I I J I 111 � ; ' I _ _ - / - /_' -._r z-'_.. _ r' `,��_r \ C \ \�' \\:'/� -y ' I ' / / \ ,- ' \1\` I I \ 11.\\I �// Illf\\\\ ��I \\I \ \ \ \ \\ \ ■ l l / I 1 !/ // III / \ ` ��' - I I `� - �_ '_ r ' � / % W r;-//•I I1 -.\ \ I I.I I\\IL 1" ," I'lli\\��r \ 7 ) n I \ \ w. \ \-. j l l /ill / // / 1I I l /.,I - �r _L_ �,• _ _ _ _ - - \\ \ \ / //I / // / ( / r �'\�' V IO � \ � JJ I I �, FOR€STLAKES\�'/ \ N'/ / / I __ �' /� _'_ , I 80UTH �' \ \ _ /�- �„`-\\\ _ 1 // i�/ill /�%i/J/�^ I / I '\. \_�;� ;-/ I I �I fr// / //// /r�' - \\ - I- / \ ----- - / / r _I �__ I� _-� , I _ \ � - ` / / / / / \..\\\\�\..-- \-� _L�d///\\\IIII'/d 1 \ --- \ \ - \..\ 1 l \ \ \� �- _ -- _ \� -_ \\\\\\ I' I .. \ \' / �_ ni r \ I -'�,\ \\\\ �\ (/,// ,\I\\I/11 1 _ \ \ \ \/' 11 ) \ \ \\\\''�\ - --_, ", -I __\\\\\\ ( I I \v .� I. 1::. V III n - I li� ,� \/` -_�_ -\l\\\� \\\._ ���.�\ \{f 1//IF/t \ Y11 1 , 1 / \ \ �_--^i lI I \ ( \ 1 \� \�� �\ �� __--�� �\\\\\ \ J -_ \\ \ \\\\ \�� I - _ I 14 - \ \ - J/ 1 \ 11 \� `\.. �- II \ ^..,A \ -�` ✓ 1 \`� 1 / / (</ \ \ ,\,- _� -\ ,-O\\ v I \ `\\ , \\\\ \\I _ , II : I I ,. I1 1 \ \ , - / //-! I)II\ �-\ \'@-- -� II f,I 1.'I\\\\\--III k_ \ `--' / /I/ / \ \ \..\'\ \ � I i \ \\ \ ) _ - M // /r'.I�-,_ \ �_ li\. \\\\ Il I \.i --_\ -�i I ram,/f // \ \.\\\\\\\--- - \ \, / - -- \\\\\\\\`ae.,... ,__ I. -- /.,1 / (/ r �' I \ v ' \' -_`l \` /// //)v \\\ \11\ t, .\\\1! 1!I v1,i _ \/-/.///- // \\ \ \ \`- __�,\\\\ 11-,-(_ �\ _ ! I\\\\\\\`^\ ', )I\I -I. I,' ..III I�._. If , r \,, I I I \ \ 1\ 4\\ ��I 11 ,'�'f / 1 I I\,. ,'_ _ �'/ /�//'/ / / /// \\ \ \�-\\ l - _ \ -- --- \\1 /I I 1 \ \ - ✓. r/ / I � � \_ �� _ II 1 \�"-\; � I III IIII IIII. �,--I IIII II\\ v-,-^-L�l 1//I//IIII -r, � \ -,\ \\ ))11.11�_ ', --_\ II/�.�',I /I I I Ib { - /% \\'� �I�I]` \ \ \ I (/ / I/I/2\, �'\\\\ ) ,,,,\\r\�I\ \''`-- '% )/ //�!I I I I 1�S 1\_ \ _-:��\ \ \\ I \]"_- '\ \ 1I//I/-''_ = I r - ,.� ,II i � �__ \, \. kkk I � r � /- �<- 1 ( /I I 1 /\ v Avv� \11AA V / // / A i A A lVA Iv�v� A A 11AAA \A1� _ - 1 i. i - V / -` , / / / / I f \ I .,v vvvv vvvvv ,1 J VAA '� ////I/'11 1, 1�41 V 1 V A \ 1 1 V1. v , Z v A A 11A AVAv -�_/ `y /: �g �:� �� f�, / .� __ ` \ V\ v, l A A / I ^ V A vvA v, -- A v )v v v I A _/ \ I I I V A A v A I Vv VA _ yv � J 1 \\ \ 1 _ \ \ I\ )\\ \\\\l\\I\�l\O1 \\-��r/��////!J/ L�I 1\ \ '\ \ \+T�_ I I I � \ I rl 1\ \ I !!, /', I .1�.-I- A-\ 1�-� III �\ l I I:. `a .�, \.. I`� o\ * \,- ,>-\ / I ! 1 \ \\ \:. \ \ \\\ \•`.\\\\\�\\\\\_- 4/ /t� ; I 1 \ \ \ -\ I 1 I, +i I / ! / --I -; I II //IIII I I'>'. Ii II 1\;�. If `\ '\ _i- ,�\: / \ I \-_� / �V V 1 v� v 1 A A ''/ ,��rf I I �a'�'r- __ 1 /_'��� 1 1 1 I _ 1 ': >-�, A V A Iy v A,.\1.11])) Oj,`-'-fj. // I I t-_�-_ v_- �- A / 1 III 1 _-- Al --- 1.� �. �_i � 11 ' / /' I ,_ ) / ' r v A 1_I II 11l VlV-'.. �!/� / I / 11 \_ _ _ -- I 1. i -vv 'I IIII AIVA "/IIII !__, III -„ (��/ '�. `.��� _ -.I v I / / I / A ^ i ) ) IIIIII I I IP A>-' '// /, , / / ! - v _ - - � � - I�I ; �.l A / "-" / -L� / / 1 / I k _ // //// / / /_.�.- - \ _' �` , - - — 1 / Ill/ / /� I\ \ I \ \ \ 111 _- I', I�I �\ �� \ - /�� .♦ \\\. _ ! / I I I _ _ ,/ -/ / / - / /.II IIIIIIIIV\`r'//i///// I I °��X\..- \�-___-__ \.% / / i F I / / p \ \ I \ 1\III__ II - �:.._ !� - / / / / / -' / / I N �� A/A,) - ,-" / / I f: L. / / 111111 v it /l r//, --'-' / - - // lI V V A A ) 1 \ -- - -� �, A�,' �W r , �- �- -� i l/ _ /' I IIII I IIIIII (///y��vv�__ v`�_--/,��`�- v�' /-/ / /, ///,' v- ' // ///// �/ I I I I\I VIVv_--_ --<- v V ��' A ` ���� 1�/_ _�`_�1 A . Illfl III �r v v - -v Ise/ //! =_ - / �/ / / / / / I vv v �_--- n �_ POST DEVELOPMENT -- ---- v � - \ `� / J I /IIII III IIII\r�\\� \\\� ---/ '','�!_, , ,/�///// l ! / — - --/ / �� / II I ^\ - / �l!'l//i\ \. \ -_/ / / - I'I j',�,, -(\i� j II /- SUBAREA 2 \1 7 \ r // .� �\ \ /.. - - ----- / /i/ / \ -I l ! IIIIIII\ \ �� -_-/_� <' "/ ,-„ //!/ / i J / _ // / --' ) I ( II\\- / II1C// 11 _-- / / / -`� - !'.; ?'Q, .,.. I /I �� ♦ ' / / /,_ `' I1/1111111 i�-_,> �.-_�)_17�_--��-,�-i//// /////� J-__'/�I / /�-G ll(I\\�'-///YIIIII,\\\\ i/// --/' 'i i4i III _1,,' \.. \__.. (5.59 ac.) �\. � ♦ 1 v LI �'i /' \ _ / \ I /- -, e i l ,� ,� ,I / i i I - _f'--.I////. \\\ / IIIIII/. \\\�\ // ,/ //� I I `- III - l \\ _ �� _ -_ \ - / 11111\; �,///� - --�/ !l ��/, i /// I I - / / '� _/ /IIII/ \ \ I - i. � . , �� \ -\\I- _ //1,111I111f I!k- // %i ` -/>� - I_-/ // \ / /^ \_ Ii -', \ / <` \ I I mil`\ \.-�\ -----\ // / IIII/ll.�rf/, / � �i-� /`/.�-/i/-�\// 1 J ' // / \� / ///I \ \ / Q _ i-.--�//I ��-/ //IIII ��� e // \ -/ I �� '� ,4 „a .I -\l\ _ / a_ / ' -'�. ��.\\�- :\\\ v -- -� '-ii-/l/fl`,�"IIIIIII( l j /r..//I /../! /i-, --I I / / \, _._i_-/ /. / �-\` /// II \, \�/ / //\\ - --i l II_ \,\ a _ / <„ \ /p .� ,./ � / \ �I\ , \\ \ \\ __. ��---s \ (,I II\\\\vl l ( //. / / // / I II \I 1. f // / , -\ I l l /' \ ''/ lull \\ \- �, /\\\__ -, i._,T I .'III` I I �I \ �� � \ �� • / t,� / ./ _ \ V- \ \\\ \\ \;_,\.\tom =-I !/ IIII 1tif 1 ( / I I r < ! 1' lI\\ I / / - /- , �'. - --_// / \� l 11 w 1 \ \\ -i, i"\\. �- //\._; I I \ :.)- ' \ �IlA / ,—`\ \ \\ \ \, -, , \\\.�� � \ II r-�,///.II I A Il\S\\\ ��`\/(//�\\ \ I I / !- / \"I., \\ ___/�/\`_-I//// I I I,\,--'/ ji\ \I- -// \r L' I / �. ?`'�.v �.. /_.� l .�r e�, �� \I 1 \ \ `_1, 11 \ - > \ /.- \- -/I it r \ \ � 71 ( I \ I \ _ - / f �.:. 1, '\. r '/ \ - ;\ - / , \ i _ ' 1 \ \\\'\` ��\\\\.--• \\\\� 1' 11\\ \\\\\\\ I// l/ ! /i' �' 1 / i'\\ 1E�.. \ :�_ _--' -i'- / �\ I�._I ' ]�•'. a,-- T. \ f ♦ / 1. 1 \ , \ - _�.\\\ \ \ 1 \\\ \\ \ \'\�� I�. /, IIII// - ) / \`,. \°\� \,: _ _� - - / / �i' .\� \_ 'T_ _ - / ,./ 'A6. Iv, 1" /..� \\ l 1 ) i ✓//.11 I'\1 \ -// i/ t/p // // / ! / -\`. 1 \\ \ -1a. - - / ^ - rll`%� .a°_._ _: �-�a \\.,, ♦ _ / / I 1 / \ I// / /i / / -' // /� \�� - --1-- i-" �. -_\ �= ,/ a POI #2'. 1, .ae='r°., � ♦ ' \\ l L (. / �I I\ \) ///'/ %/ i- // / // I, // /� \`: \,\\\�__. .�\\�\\: ( i \ \`�--� -- Y_ -f_ 5 \\.. \.. 1 `,% \ I -�._, 1// AA /! ./ /Il/l/// IJ A/�///.I//�/ 1. /r IIII///I // / / // / / �'A., �� 1., v .. VA ' r'. v /- A. A �__- _ ° ♦ "I I ,. /' I I 1 I I ' / / /,nI.l /// F /l: l( if / r l / / / / , -\\, \ \ -.,\\ 1t\�p��---_ \ \ \\ \ �G, ,_ - '' --Y'� / - 1 I / l / I 1I , / / / ,� \ \ \ \ \ \\:,\.a __^\\\\ -r- -J/-�. I V �_-�_il\ �f a :.l _ , i I\-__-- 1 .; ja_ I I If(fl/( ( / / // I I / / / / /, // / ,\\\ \ \\\ \.-_ \\\\�\ \ S I / ! - I �l`�r. I I 1 hill\I I1�111 f'1/. I. /// !IIII I IIII.\I I �_- ' '�-/, /- / \\:: ■ \ \ \ \\\\ \\\'"x �\�`\\�\�.�� \\,` -� _ \ ♦ - I - -- / l -1 I _- 1 \,\\\v ll\1 1/! II.\ I II\\ \\ (- / i //, _ / / /\\\�..._ �■ \ 1 1 \ I\\\ >\�=-�_'i �\\�\\\.�_-'—_ �-"'' �\� 2 \ \\-. . 1 - _ 1 1 \ .1 \ S ( f l \ l I I \ l / - / ' . f < / \ . , - \. \ 1 I 1 ! \\. \ _-_-^.�.'��� �"\ _ _ _ -. ,; �� - \ ,\ ' \ \a. , .: " �.\ •° • �• *� ' ' / �'/ ! �_- I Il'1'I-111 \\\\\\\\\ \\ \\\II \ \ l\\ / - 1 \ \\ I I-_-:J\- . ��� - -_� • ' / / I ! / / /i1 II 1\\I'\\\\\\ \)\11 I \1 \\ \ \l \ I 1 \(-iy//-^fJ\ / l\\\' `; I I I I 1 I >---��__.-_--\ \ 1\��\�-'mil` �� ,� t' • -—:.-___ '/ / /v - / ll. // !. II A ). vIi it I I v 1 A V ' Ill/ 1 _( )/ V V ''�' �' 1 I A �_- -VA vv_-h �— i �'I �._ °•� �� ■■■■■■��� \ ��� I y /, -, , I I (/I /:l 111J/l \,\\I /1/ IIII\L� I1 I1' I I\ \-�.-1;.1/ �._i ;�-' -' \` `; ■ \ \ \\ \ _ ---- - _ I_' < / /, \ III l./ Ill !/,/161f11 / 1. , I11 \ \I111 1 I 1 \-y -// -r = /\\\\ I 1 I I \\\--_-_-_`-_. 1 \ \ r l�r' I ' . v� \ l / / �" I I (( f(// /,�,l'l� \ 1 \ \\l \\\�\ \ 1 \ r o //!/ \ /\ \ I \ \ '-_ ! 1 11. ,. .:__.y. O,\` \!_�-:� \� �� �•. �� �. /- - IIII _ _- �■ ■1 _ _ _ �° -/ l //, I \\�--i 1 I I IIII I //'Ylll \ter\\\\\:� \\\II III 11 1 \ t r "// \\\-_ \ \ I -. ,, (/ _ _ _ / / / / _ \ \/ J 1 �' \ \ \ \ , ! y,, I' \_ `_ �:, — ,° \ L - 'J _ \` - Ill,; - ,, // / I I I.II hill.\___,\\\.. \\\ 11 / /� \ \ _. „ _ ---_ - /r,-\\ I I I ,�i \\\� I I I // IIII/ !Y-\- / / 'I e .;. ■ \ \, °°, _ �i' �� �' ..\ 1 ///// i�/ f ll1. \ \`._-�/ 1 IIII ll\\ l \\\\�_�` -�� 1111I1111 lI ((I I // ll lll� ` \ --/ \ / • ■■w� ■■ ♦ ,. L, ,, ._,-: �� \\, - \ y-� \ / I \\\/ l ! i//./ �I,I11\��\ / / II lllllll\\\�`4+'`\\�\��.='Ill lllllllllll1111\I\ l \ -'I//` ////:IIIII�_l\ \\� �/ \ 1\.\/ I. I■■ ��YI ♦ Lli 6 �,r"-kL.. `i ,..\ �\ e\.,. _ -._ ■ ° _ / �_- _ I / III/r,\,� II I 1 III ,,,/I/fllJlllllnll\ \ I ` -/ /_////J! t- \ \ -- \ \ ,\ •1■■■■■■■■■■■■■�11�� \ \\\.,\ ♦ =f 1 \ _ / /�//i/�/i1/I -', - -/IIII/\1 \,` __/' 11 III 11111 �'\���//// !/!Ill II. \1 \ \�-', / /////Iglu \ \ \ 1 -U \ _ 0 l//\\\\\ / /(IIIIII//1 I- ''/////i//////%//C /7'I111\�\ \\--�i-/i��'///, ���Ili`_`��'_� \!r \\1-' � \\ �/�1\1 Ij r.. % P _ I \l° 11 �� / \ ,\ I _i%/%Ij/j//n:ll' -`�-�,,'1/i l/\\\ \-\ 1 ( Il. ll llll11l ")1/'/////!!%/ /IIIIII\\_____/// --/Ili/i//%�' c-- I \\� O _ - '!((/.�,, 11,41; .;�� ♦ •• �/ ' i� / _ _ 'J//////%nl II11 I. t A _ / /I // / / � < - 1 -/, /i/j/\I11 L__� ! / I.I/f IIII �Il l', /�//!//////////%J/I //.III II,\ ___/'//- L%, i \lJ.- _ '/1'A It-' I Q I\ \ \\ / l,'/ / / / ■4 1- II`" _ Il',111 ��'��I r. ', �� ♦♦ \,' i' \l ,I � > \.,�/' ,'- N J//.///i n1 11 I. ////II I ./ // ll!1� / /., 1/////// I II\\ /// -/� \ll,I I , '\� O ) /./ iIl \�\�\\ i-_ .,s . �� / _ / \-_//-�(//Tj /ill( I_;-'�i'//illll � //i /IIIIIIII///',%"ll///////// fl11111 \ 11 _ i// '. 'fl, II/II ` \ J II\- d' I /. I 'I I / /'/!,`f r II `_ il�, \\t \\. _- / I / \� \ z / �_--_ I � j/i/-,I�.. I_._\:1 // 1 _ / / / II/ ll /I \ \ \ 1�-- _ /-i/'///�' / / \ \ \'.�\\� 1 I 1 1 I f r, / /.d: . II \ /i • I, •:dI .\ __ __ - -'- \ 1 1 / /r/ / I /%/!/ / IIII l __/ /'.��.,-- ! \ N l r - fl = \\� \ / // 'I -�_ i. r- `\\\ // \ \I / / I l/: _/IIII. %fl III I'l \ \ \\ \ \�� / -/ � -, f/r//�./l\ \\�� \` 1 J I I I I \(r // /\\ - III.. I,Y"'�Y`—wb—�. I I'll l� I.. IIII/%__ �• I I �_ ,� �_�_ ',\\\.- --- _//l,�//../111, 1//111 II111\\111\\ }l ti__-iii(s/i5///i// -IIII \\ \�- \\�� 1 \ \ t^\.., ! .� 1 I,1\ �'.'..1 IIII . •a/.':J // / \ `\J<-✓ \... III\\ --ti__�---/'\\\\_- //.////✓./1,: IIII Il\ \\\\'\ \',__ 11 .�-��--' \ _- I 1 I) \\\\\\\\\\, -j ._r L.. Il� .�j t i I - /' f" _ �1I\ \�Z\a. r:_�,, "I II II.,` i>--e!�-//I f" \ \L �1 \ 1 1 1 _` ° III y I\3 �\ x\\\\-r.. 711111I�VI: \.\\��_,\_-_/J lI f/IIIIIII\�\ -\ V \ \ - __ / I I 11 ,_\\\\\ \l \---1//-- %iii �/ /��- -_s ,\ I. I 1 I I \ \ .. ■ .� \ . • �. ^ ' I- \ \ \\I\ -/l t,/ � \ -/ `'R, O -- / 1 I y ----- 9 I�. \S �_ l ", � -h_ z -\ \`�\l .�-a11�I 11l�IlIIII I�I, YIa� \_� _ \\\��\�,,� --_;� Il / //I 1\ \\.�_\\\� \\ �\` --'/ rI /f qr�j/r \\��.._ \I11�N\_-I L-. / 1 I\ \ \III'lll I ��'�� ■ _ z 't-� � / l , I' i , �;, �,\� ..\\ \\I\ III III j ���_�-,\\\\0� �Z� _--1111\\I� \\�`�\\�\\\�\\\\\ \-- /..: -� I/1, v(1. \`, II111S 1 aC / /, I1 Illllfll -,. ■ - .__^ -°` -...\ \\ / I,- I�. \�\\\T\\\`\(.. IIII,, I\I IIII II NI. ,l. �1� �\\\\� \\\,-!�__�1\.\\��� \\\\\\\��/ _�- _. \ l I � - � `-,�._ `. I__ \�, "_` II�1\.: III , I \\ �\\\ \\\\ ���%//I:. t Illlllllllllr I :-'/r/ / ) /I Ill//; ', I ■� . ��• °° �� --- -.._I / I � 1 `1 Ill\ "'�'i 11.'q/IIII �; -\ \`\ \\\\\�\\`\�\�J\���; _,_ ���`'�.w \\\\\\�\\\\���`'__- _ �--z��=, I I IIII // , / //-Il!llllllf:I a,.,{ I * _ _ f \_ „�'IIIL II III !-Y: \. I ...\\�\-? \ \\\\\\\�\���t- \ �_. .r \\�\���\\��'. i`yyl _-_--_. / l I IIIIIIIIIII //I / .l f l 112111 F'\IIIIIII, �� ������ \., _ ___� I % I` \l lly hjlllll ,1fV -_ \ \ \ \ \ \ \I `,\\\ �- \`, - - �, - \. \\ .- -1 '\'` \ 7 _ I -✓ I I IIIIIIIII / / ' / ! I 1 1 (IIII 1 11 \ r-. _: -- :� e ? \ y° — - - \ \ \\\ \�. - \ \ l '—^-- I III / - 1 ll 111 I .� 1■�� `I I / \, --- --yam- 1 \ \ \. . \ ,_�� ��_ _ \\'CY�\\. l _.--._.—:-.—_ )Illlllll 1 ,,I, "'///'/-� I IIII//Illllllll'l`L- I �.-.=q�.�`' _'a 8 '. I ' l I. v- A vv ��v� - _ ---\ t A� YI\ i� -v �\ 1/�llllli V 1 / v Ate. 1- _ l ',' --- / _� \ ppp I / �. - // I////// l - J, �' 1 A �� vV V �v\__ ll /, / I lrfn / I V v`'� > >-r A AVA vI�JIv IIII v . 1.A / ///AA�� � I - lw,,ln Ir I A I J.'/) l I 1 \ .\_= \tee / �'�// \\�\�:�L �LIk1J�\l\\/�/ �- p \! `/�//l/�lll1 / �\\\�////'III IIIIII(/Ij I _ _ I.,- 111 I I-.--- ' / I `\' \ / / - - - 1L ' _<{; �.'/ / iii-IIII' �__.2\\�\\_.i\:��\\/ ' - l / \//III \\\\/////1111111 Ij ° •:I n ` ` ---__- -._; -� / / / _,- i / i // .i/i i%�N\ \���\\�\ ,\�,�� b / I i /��///// \ m ''^\\\\\ I1l (IIII ,I -. -- II I:,: ., °°•,° °•°°° °•°; \�I 7�/\I- - / I' I I\' ,'/ % - /,i i %- _ 1 ,� \\<� 1\.: .�_ .1. `,,\.,,e _- - '1\ _ ,ff/�� 11 ' \ .�`\I I I�I II�,I { II I _ _ - _ _ _ - -- _ rl�f oe° .vli - °: � I v / � I / I �z I` M J N � I..L 1 N Ln T-T VJ N N \ I / � Z _j T� ^J^ W LI O O '� �u T 0- Z: Z C) O Y � Q W U w '5 O QM VJ W MJ NW ■ L_^ J VJ J �� �u = Q (O o O0 N ,:e W w J ti u I w w � = a � JOB NO. 182150 SCALE 1 =300 SHEET NO. 21 Brookhill Stormwater Quality Summary Table Phosphorus Removal Amount of Offsite Amount of Offsite Percent of Total Section Block Common Name SWM Facility ID Type of Facility achieved w/proposed plan Plan # Credits Created Credits Purchased Development Section Block Common Name (lb/yr) (Ib/yr) (lb/yr) Offsite Credits (%) 4 14 Apartments Pond 11 Wet Pond 4.01 WP0201800051 5 16 TBD 1 40 Apartments DP-4A Detention Pond w/ Underground Storage - WP0201800051 5 17 TBD 1 40 Apartments CDS-4A CDS Unit (Manufactured Device) 1.60 WP0201800051 5 18 TBD 1 40 Apartments LS-11 Sheet flow to open space REMOVED - WP0201800051 0 1.27 3.7% 1 4B Apartments Pond 11 Wet Pond 0.18 WP0201800051 Section 5 Master Plan Comparison 1 4B Apartments UD-4B Isolator Row (Manufactured Device) 3.38 WP0201800051 1 4B Apartments Pond 4B Extended Detention Pond 0.79 WP0201800051 Section SWM Facility ID 1 4B Apartments LS-4B Sheet flow to open space 0.74 WP0201800051 1 - ROW Pond 11 Wet Pond 0.18 WP0201800013 1 3 ROW LS-11 Sheet flow to open space REMOVED - WP0201800013 0 1.09 3.2% 5 Pond 14A Treatment Total 1 3 ROW LS-11 Sheet flow to open space REMOVED - WP0201800013 5 Pond 14B Treatment Total 1 8B ROW and Block 8B Pond 10 Wet Pond 5.91 WP0201800080 5 Pond 15A Treatment Total 1 ROW LS-10 LS-10REMOVED - WP0201800080 0.68 1.53 2.5% 5 Pond 15BTreatment TOtaI 1 - ROW LS-10 LS-10 REMOVED - WP0201800080 5 Pond 16 Treatment Total WP0201700037 5 Grass Channel Treatment Total 1 3 Section 1 Mass Grading Pond 4 Wet Pond 20.56 (Amendment #2) 5 Sheet Flow to Open Space Treatment Total 0.46 0 1.4% WP0201700037 Section 5 Treatment Total 1 3 Section 1 Mass Grading LS-4.1 Sheet flow to open space 5.14 (Amendment #2) WP0201700037 1 3 Section 1 Mass Grading Wet Pond B Wet Pond 8.53 0 0 0.0% (Amendment #2) Overall Treatment Total 1 1 3 Ice Rink ROW Pond 11 Wet Pond 0.38 WP0201800050 0.08 0 0.2% 1 1 3 Ice Rink ROW LS-11 Sheet flow to open space REMOVED - WP0201800050 1 1 3 Ice Rink ROW Pond 4 Wet Pond 0.89 WP0201800050 0.68 0 2.0% 1 3 Ice Rink ROW LS-4.1 Sheet flow to open space 0.67 WP0201800050 1 3 Ice Rink Pond 4 Wet Pond 2.20 WP0201800050 1 3 Ice Rink LS-4.1 Sheet flow to open space 1.79 WP0201800050 1 dD Senior Living Facility Pond 11 Wet Pond 3.70 WP0201900004 0.01 0 0.0% 1 dD 1 Senior Living Facility I LS-11 Sheet flow to open space REMOVED I - WP0201900004 Section 1 Master Plan Comparison Section SWM Facility ID Phosphorus Removal proposed w/master plan (lb/yr) Phosphorus Removal achieved w/proposed plan (Ib/yr) Anticipated Amount of Offsite Credits Purchased (Ib/yr) Anticipated Percent of Total Development Offsite Credits (%) Amount of Offsite Credits Purchased (Ib/yr) Percent of Total Development Offsite Credits (%) 4 Pond 4 Treatment Total 6.77 23.65 1 Pond 7 Treatment Total 8.11 TBD 1 Pond 10 Treatment Total 6.94 5.91 1 Pond 11 Treatment Total 9.68 8.45 1 Pond 4B Treatment Total - 0.79 1 Manufactured Devices Treatment Total 2.62 4.98 1 Infiltration Treatment Total 21.71 0 1 Wet Pond B - 8.53 1 Sheet Flow to Open Space Treatment Total 9.74 8.34 Section 1 BMP Treatment Total 65.57 60.65 Section 1 Offsite Nutrient Credits Totall 6.8 20.0% 1 3.89 11% Section Block Common Name SWM Facility ID Type of Facility Phosphorus Removal achieved w/proposed plan (lb/yr) Plan # Amount of Offsite Credits Purchased (lb/yr) Percent of Total Development Offsite Credits (%) 2 9 Townhouses Elk 9 Wet Pond Level II Wet Pond 5.87 WP0201800086 2.10 a 6.2k 2 1 Townhouses Blk 10- UGD Underground Detention (No Water Quality) - WP0201800086 2 11 Townhouses _ FYI: A 2.08 Ibs/yr credit is appied to the Elks 9-11 WPO 20200004 plan from the immediately adjacent Wet Pond B in WP0201700037 Amendment #2. This credit is accounted for above in Section 1's Wet Pond B's 8.53 Ibs/yr removal rate and is therefore not shown in Section 2's removal rate summary. WP0201800086 Section 2 Master Plan Comparison Section SWM Facility ID Phosphorus Removal proposedachieved w/master plan (lb/yr) Phosphorus Removal w/proposed plan (Ib/yr) Anticipated Amount of Offsite Credits Purchased (Ib/yr) Anticipated Percent of Total Development Offsite Credits (%) Amount of Offsite Credits Purchased (Ib/yr) Percent of Total Development Offsite Credits (%) 2 Pond 12 Treatment Total 8.06 2 Sheet Flow to Open Space Treatment Total 1.67 - 2 Blk 9 Wet Pond - 5.87 2 Blk 10- UGD - 2 Credit Appied from WP0201700037 Amendment #2 - - Section 2 Treatment Total 9.73 5.87 Section 2 Nutrient Credits Total 6.8 1 20.0% 1 2.10 6.2% Section Block Common Name SWM Facility ID Type of Facility Phosphorus Removal achieved w/proposed plan (lb/yr) Plan # Amount of Offsite Credits Purchased (lb/yr) Percent of Total Development Offsite Credits (%) 3 14 TBD TBD TBD TBD TBD TBD TBD 4 14 TBD TBD TBD TBD TBD TBD TBD 3 12 TBD TBD TBD TBD TBD TBD TBD Section 1 Master Plan Comparison Section SWM Facility ID Phosphorus Removal proposedachieved w/master plan (lb/yr) Phosphorus Removal w/proposed plan (Ib/yr) Anticipated Amount of Offsite Credits Purchased (Ib/yr) Anticipated Percent of Total Development Offsite Credits (%) Amount of Offsite Credits Purchased (Ib/yr) Percent of Total Development Offsite Credits (%) 3 Pond 13A Treatment Total 9.13 TBD 3 Sheet Flow to Open Space Treatment Total 5.95 TBD Section 3 Treatment Totall 15.08 1 TBD Section 3 Nutrient Credits Totall 6.8 1 20.0% 1 TBD I I I TBD Section Block Common Name SWM Facility ID Type of Facility Phosphorus Removal achieved w/proposed plan (Ib/yr) Plan # Amount of Offsite Credits Purchased (lb/yr) Percent of Total Development Offsite Credits (%) 4 14 TBD TED TBD TBD TBD TBD TBD 4 14 TBD TBD TBD TBD TBD TBD TBD 4 14 TBD TBD TBD TBD TBD TBD TBD Section 1 Master Plan Comparison Section SWM Facility ID Phosphorus Removal proposedachieved w/master plan (lb/yr) Phosphorus Removal w/proposed plan (lb/yr) Anticipated Amount of Offsite Credits Purchased (Ib/yr) Anticipated Percent of Total Development Offsite Credits (%) Amount of Offsite Credits Purchased (Ib/yr) Percent of Total Development Offsite Credits (%) 4 Pond 13A Treatment Total 14.05 TBD 4 Sheet Flow to Open Space Treatment Total 0.04 TBD Section 4 Treatment Total 14.09 1 TBD Section 4 Nutrient Credits Totall 6.8 20.0% TBD TBD Notes SWM Facility ID Type of Facility Phosphorus Removal achieved w/proposed plan (Ib/yr) Plan # Amount of Offsite Credits Purchased (lb/yr) Percent of Total Development Offsite Credits (% TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD Phosphorus Removal proposed w/master plan (lb/yr) Phosphorus Removal achieved w/proposed plan Ib r ( /Y) Anticipated Amount of Offsite Credits Purchased Ib r ( /Y) Anticipated Percent of Total Development Offsite Credits (p) Amount of Offsite Credits Purchased (lb/yr) 4.81 TBD 6.42 TBD 5.16 TBD 5.14 TBD 11.75 TBD 2.1 TBD 1.43 TBD 36.81 TBD Section 5 Nutrient Credits Total 6.8 20.0% TBD 141.29 66.52 Overall Nutrient Credits Purchased 34 100.0% 5.99 Treatment Total With SWM Master Plant 175.56 1. Even though we are currently only proposing to purchase 34 Ib/yr or 19.37%, the total offsite credits available for purchase are 25% of the total 175.56 Ib/yr required for the development, or 43.89 Ib/yr 2. Actual credits purchased to date are 2.36 lb/yr. 3. Credit amount approved to be purcased with Block 8B, but not yet purchased, is 1.53 Ibs/yr. of phosphorous (WPO 201800080). 4. Credit amount to be purchased (with this plan) for Blocks 9-11, but not yet purchased, is 2.10 Ibs/yr of phosphorous (WPO 20200004). 5. A nutrient credit amount of 2.08 Ibs/yr of phosphorous is to be applied to this project from Amendment #2 to WPO 201700037. AIR FLO 3 DIFFUSED AERATION SYSTEM SPECIFICATIONS PURPOSE The diffused air, aeration manufacturer shall" provide an underwater aeration system designed to aerate.4'] 1 de stratify. and circulate water without disturbing the k+; natural surroundings of the lake environment. `:.: - - - SCOPE- The diffused air, aeration package shall be it ' - .. 14'�7; capable of being installed in lakes deeper than aft 11 m). J PACKAGE This aeration package shall include the following equipment - �' a. Air compressor cabinet enclosure. To Include t .y compressor(s), circuit disconnect, and air flow balancing valve manifolds. To be designed to operate on either: I. 6OHz power, 115/209/230 volt, single phase it. SOHz power, 220/240 volt, single phase www ollarbine,eomiairflo7 munctiims IS. Air/Oxygen disc diffuser manifolds c. Tubing CABINET/ENCLOSURE TUBING: IAraiMb)• in IOD/f (30m) inarmentsf O t Compressor Total required tubing for system: Q 2 Compressor feet (_ m) Non,weigbted polyvinyl chloride tubing SPECIFY: tts Volts 60 Hz feet (- m) Weighted polyethylene chloride tubing DIFFUSER MANIFOLD(S): [si+pk w Dual Disc] Tubing lengths per diffuser manifold: Quantity Type Single Disc Manifold(s) ^ _ Q feet fo meters) Non weighted tubing Dual Disc Manifold(s) __ _ Q feet (Q meters) Weighted tubing PISTON AIR COMPRESSOR (for lakes 3110 m) deep or larger) The air comptessor(s) shall be a 1/2HP rocking piston, dual frequency, permanent split capacitor (psc) electric motor with oiliess lubrication, direct drive (no hefts or puIIty), designed for feld service capability. r s[ protection, and to Include the followin g filter. T serviceable arts: piston cups. retainer motor protection thermal overload protection, and intake airhe s p p P . screws, cylinder o-rings, head o rings, valve and valve retainers: should fast two years in continuous operation. These maintenance parts shall be replaceable with common tools. Please consult your local distributor If you require assistant in choosing sites, accessories, or applications. AIR COMPRESSOR CABINET ENCLOSURE: a- Cabinet body and cover construction shall be 18 gauge (0.048in/0.122cm) 304 stainless steel, and include EPDM edge-gnp seat b. Cabinet cooling system to consist of two (2) axial exhaust fans and vented Intake louvers on the bottom of the cabinet to provide an air exchange rate of 410-490 CFM a Compressor -intake au to be quick change cartridge type Filters d. Cabinet enclosure secured by stainless steel latch to accomodate locking mechanism "'in" 3 Daluud Air Svitem Speu6catans 1 Page 1 M 2 AF3-242; P/N 03-3242 OR APPROVED EQUAL a a a 3 3 AIR FLO 3 DIFFUSED AERATION • No electrical pans In water, care for recreational use. • FAtremely enerM efficient ani sl effective. • 12in 1350m m) dihCS arc coated to pro+ide non-stick surface and offer 1Lgher efficiencies throughout lifegde. • Operating depots up to 40fl+ or 12arn+. • 2 year all -Inclusive warranty. • Complete package includes cabinet wlthcompressorls). tiller and vah a manifolds; and dIffuser manilfoldlsh• • NafetY tested and Lsted mith ETL 6 M- C, conN ntinig to UL standards; and carries a 3rd party ll with CE. MlFel • ypPlmrrm �"-•�" aO.n PIM •Py wtllutw nVMrMa u1a21 - i a 1 a +- _ i . � --,- 1 v..nw +�'+•1� .p1-111 • an.at • -..N tiS • 43 Mi • r a �� s -� � 4 , ,.Vl.feSa 11414.rA4 1171111.6111 us.aer a M Y. • •rs.Ya] a as as • ars.]ea e AF3-242; P/N 03-3242 OR C«n•mwr 46m] N^940n(eYXN PRODUCT ILLUSTRATIONS '� hifb]p/•wa 4r Srn.n, n,rypp.l)n.Nlp. T RtbW qIR rE•IInnV, Il INIV WY4r44r111•Iw Ylwx-,•m�wf wYJrwrvldn nSMwl4a s outs. w,,.,om b.,M•-aub -�j Ullu... n.,e.l.a\w uu.wWl.JMm.wY C ��mM14weA•]«Iw ••,vwrM wild nNFab E ,..»ly awr•aM.y •.,a,...,. � Frew �w,•1•W�]a•w Win <awn 4.+Iw-d.naa.d �Mnt •' cspn]M MvpM]r.otl„n lavwl In re nnriwrn .Yn nin.]v it M�„n.u,..f]aM CJuw.w r,r.T,•„NbJ.. ,�fluul luaMwm ,• CriWMVI N n!1X 4191 ,111«M� G11mwu««a«Mn�J C, Y.YNn]Hfl W1n P•1 t Yfnr.MMn.4r 11p n,tMn,m O (vnvm cas«P nalnl mna, mrv.n nJlmo-mrn F-am1wwr�rv. m. u.w-V..m ea.«wnv wins y um, •lu •ranweu• mw]Y•Iroi la pmLv,n,lp Me rmtucl ]p;1(talilly] aM rAL3 ccn Lt Ic««ndan(r]x s' ,n,,.,n•+»+*nc.b,++.<,.», o. •w•.<+:artrranYr•.r„ APPROVED EQUAL AIR/OXYGEN DIFFUSER MANIFOLDS The air/oxygen disc diffusers shall include, but not be limited to, the following materials of consuucbon. a. Disc type 12in (3SOmm) membrane diffusers allow for maximum 12CFM and are resistant to Ozone and W b. Membrane material to be premium quality compression molded EPDM with an oil content of less than 12% c. Diffuser membranes should have a minimum of 10.155 slit perforations and be at least 70%hydrophdlc, with tensile strength at 2000 psi d, Diffuser to consist of membrane with integral gasket, base, retaining ring, and air Row control orifice e. Membrane shall collapse and seal when aeration system air is turned off f. Sealing method of retaining device shall generate a minimum of SO pounds per inch/58 K9/cm of circumference of the sealing gasket to provide a long term positive seal and to prevent air escape g. Diffuser base and retaining ring to be constructed of polypropylene with organic UV stabilizers and a tensile strength of 5000 psi h. Diffuser to have one 3/4in (2.5cm) connection method to manifold I. Each diffuser shall include a manifold that will connect up to Iwo (2) air -discs to the air supply tubing j. Manifold base shall be constructed of high -density polyethylene plastic and Incorporate ballast channels for level sinking of pars during Installation WEIGHTED POLYVINYL CHLORIDE TUBING: Tubing shall be constructed of heavy, negative buoyancy, Polyvinyl chloride (PVC) material. The PVC tubing shall be 1 /2' 0 cm) with a minimum wall thickness of 1/4" (.64 cm). Pressure rating shall be 225 psi at 700 F (21 o 4. Coll lengths shall be 100' (30 m), with a weight per TOO- (30 m) of 43lbs (20 kg). Tubing shall be self -sinking, lead free, and contain carbon black for UV protection. Please consult your local distributor for additional Information. NON -WEIGHTED POLYETHYLENE TUBING: The polyethylene tubing shall be 1/2in (Icm) with a minimum wall thickness of .06in (I-Smm). Pressure rating shall be 100 psi at 73 F 22 n. Coil lengths shall W 100' (30 m). with a weight per I Doff (3 Om) of i t Ibs IS kg). Tubing shall contain 2%carbon black for long term UV protection. Please consult your local distributor for additional information. INSERT FITTINGS Insert fittings are used to repair, adapt, or connect with the polyethylene tubing. Finings avwlable shall Include line size couplings, male adapters, and elbows. TESTING: A. Safety - The aerator system shall be tested and approved as a unit Separate component testing not allowed. Unit must be rested by ETL, ETL-C, CE, UL or other accredited testing facilities. B. Performance - Unit must have independent performance testing provided by CSEE. MANUFACTURER: The diffused air, aeration system shall be Air Flo 3 Systems ____ as manufactured by Otterbine Bwebo, Inc.,3840 MAIN ROAD EAST, Emmaus, PA 18049. USA PH. (610) 965.6018. or approved equal. For approved equal status, supplier shall provide the following Information to the project designer, within 10 days of the bid opening date, for written approval. WARRANTY: The aeration system shall include a two year warranty on the air compressor, air diffuser and •• •0112 1111.1419) SYSTEM a of Compressor(s) Diffuser Pads) a Discs Par Pad a Disc Per systrim Vok/Amp/Hz AF3121 1 2 3 1 , 2 1 2 3 4 2 4 115 C7 60 230/23/60 220/2.a/SO AM131 AF3411 ASIA 12 2 AF3.122 AF3.241 1 2 4 - 6 a 222 3 4 6 I 1 4 6 6 4 8 B 12 Its/L9/6o 230/4.7/60 220/5.6150 AF3361 Af3301 aF 2 AF)I13I AF3-242 Ai3.262 underwater tubing. AF3-242; P/N 03-3242 OR APPROVED EQUAL N, M 3 DAused Ai, System Speclfkail,x,s I Pate 2 o/ 2 Percent of Total Development Offsite Credits (%) TBD 17.6% SCOTT R. LLINS� Lic. No. 035791,a 8/04/20 w4 I� LONAL t�CIA F z z z z w w w w O O O O z }} }} }} 0 J z z Z Z a > o 0 0 0 U �000 Z w 0 to 00 00 M o O N to 00 a Of cK z a n /A w z o cn o N a a a LU ce cO o` o 0 0 ~Q N rn V ti` ,My M W ID J_ Q l9 zLU I� Of O Z N� M w Q W N V) W W N / T� I..0 W J � Z J 06 Q _ C/) Cl- F O 0 0 � O 0 Q ` } Z � J U �? W 1 a w U w Ul O J w CO Zw 0� J O U) J U) H� J W_J Bl� Q � Y (DO o/'�/ 0 CL' O O m J ULUH w w>w 0- Oa to JOB NO. 182150 SCALE NONE SHEET NO. 22 Section 6. Pollution Prevention Plan. (reference County Code 17-404 and State Regulation 9VAC25-880-70 part II section A.4) A. Plan showing pollution activities and prevention practices (Provide a reduced I Ix17 copy of a site plan on which all of the following activity locations are clearly marked. Keep this plan up-to-date with ongoing site changes and inspections.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Pollution Prevention Plan Prevention - Stopping - Containing - Cleanup - Reporting A spill is reportable if it; causes a sheen (the sheen rule), creates discoloration/emulsion on surface waters, or reaches storm drains. Any Fish Kills must be repo d. Reporting information regarding specific substances can be found below. Potential Polludon Generating Prevendon/Response Acdvides: QuickReference Chart Fuels, Hydraulic Vehicle refueling and maintenance operations will be conducted in a dedicated Oils and Vehicle location away from surface waters. Secondary containment (berms), readily Maintenance available spill kits and cover will be provided where appropriate. For additional information, see the Fuels and Oils subsection below. Soaps, Solvents, Chemicals will be safely stored in sealed containers when not in use. Clean-up and Detergents & disposal will be done in a manner to prevent contact with storrnwater, utilizing Wash Water cover, tarps, buckets, and proper disposal techniques. For additional information, see the Hazardous and Toxic Chemicals subsection below. Construction products and materials will be stored in a safe location and handled in a manner consistent with the pollution prevention plan and manufacturer's Hazardous recommendations. Likely utilized items on site include asphalt sealants, copper Materials Construction flashing, roofing materials, adhesives, concrete admixtures, pesticides, herbicides, products, materials, insecticides, fertilizers, and landscape materials. Construction and domestic wastes and wastes such as packaging materials, scrap construction materials, masonry products, timber, pipe and electrical cuttings, plastics, Styrofoam, concrete, and other trash or building materials will be disposed of properly. For additional information, see the Hazardous and Toxic Chemicals subsection below. Fertilizers will be applied per manufacturer's recommendations and not during Fertilizers rainfall events. For additional information, see the Hazardous and Toxic Chemicals subsection below. On site portable lavatories must be located away from surface waters and storm Sanitary Wastes drains. Any spills must be cleaned according to federal, state and local regulations. For additional information, see the Sanitary Waste subsection below. Wash Water without Wash water will be directed to sediment basins or traps, using filtration devices Non-Stormwater Soaps such as filter bags or sand filters or similarly effective controls. Discharges Site Excavation Must pass through a sediment trapping device and be released onto a stabilized (Examples listed in Dewatering surface. Conveyance channels must be stabilized. Table 4 below) Utility Flushing Energy from clean water releases must be appropriately dissipated in a stabilized area. For additional information, see the Water Testing subsection below. Concrete wash water will be directed into a leak -proof settling basin or container. The container or basin shall be designed so that no overflows can occur due to Concrete Waste & inadequate sizing or precipitation. Hardened concrete wastes shall be removed and Wash Water disposed of in a manner consistent with the handling of other construction wastes. Liquid concrete wastes shall be removed and disposed of in a manner consistent with the handling of other construction wash waters and shall not be discharged to Managing Waste surface waters. For additional information, see the Concrete subsection below. All solid waste and debris must be deposited in dumpsters and kept out of surface waters. Exposure of waste materials to precipitation shall be minimized by closing Solid Waste or covering waste containers during precipitation events and at the end of the business day or by implementing other similarly effective practices. Minimization of exposure is not required in cases where the exposure to precipitation will not result in a discharge of pollutants. Other Spills and Leaks Oil, chemical or other hazardous substance spills and leaks that exceed the reportable threshold will be reported to the DEQ in accordance with Part III G of the Permit as soon as the discharge is discovered, and in no case later than within 24 hours. A reportable quantity of oil is defined by the EPA as a discharge to surface waters that causes a sheen, discoloration, and/or an emulsion. A written report of the unauthorized discharge shall be submitted to the DEQ and VSMP authority within five days of the discovery of the discharge and include the information listed below: • Name, address, and telephone number of the person reporting and the responsible party • Specific location of the incident • Date and time the incident occurred or was discovered • Name of the chemical/material released • Source and cause of the release • Total quantity discharged • Medium into which the substance was discharged • Amount spilled into water • Weather conditions • Name of the carrier or vessel, the railcar/truck number, or other identifying information • Number and type of injuries or fatalities • Whether an evacuation has occurred • Estimation of the dollar amount of property damage • Description of current and future cleanup actions • Other agencies notified or about to be notified Reports will be made to the following: DEQ Valley Regional Office Phone: (540) 574-7800 Fax: (540) 574-7878 For reports outside normal working hours, leave a message. Virginia Department of Emergency Management Emergency Operations Center (EOC) Phone: 1-(800) 468-8892 Materials and equipment necessary for oil or chemical spill/ leak cleanup will be kept in the temporary material storage trailer onsite. Equipment will include, but not be limited to, brooms, dust pans, mops, rags, gloves, goggles, universal absorbents, sand, saw dust, and plastic and metal trash containers. All oil or other chemical spills/ leaks will be stopped, contained, and cleaned up immediately upon discovery. Those large enough to reach the storm sewers will be reported to the National Response Center at 1-800-424-8802. In the event of a hazardous spill contact: 9-1-1 Fuels and Oils The State Code of Virginia §62.1-44.34:19, states that discharges that may be reasonably expected to enter state waters, lands or storm drains must be reported. In the event of a spill, it will be stopped, contained, and cleaned up immediately and the material, including any contaminated soil, will be disposed of according to all federal, state, and local regulations. Any on -site storage tanks will have a means of secondary containment. All vehicles on site will be monitored for leaks and receive regular preventive maintenance to reduce the chance of leakage. Petroleum products will be stored in labeled, sealed containers. Spill kits will be included with all fueling sources and maintenance activities Hazardous and Toxic Chemicals Spills of hazardous or toxic chemicals that exceed the reportable quantity threshold must be reported, as previously stated. The EPA lists reportable quantity thresholds for each chemical under 40 CFR Part 110, 40 CFR part 117, or 40 CFR part 302. All paint containers and curing compounds will be tightly sealed and stored when not required for use. Excess paint will not be discharged to the storm sewers but will be properly disposed according to the manufacturer's instructions. Spray guns will be cleaned on a removable tarp. Chemicals used on -site are kept in small quantities and stored in closed containers undercover and kept out of direct contact with stormwater. As with fuels and oils, any inadvertent spills will be cleaned up immediately and disposed of according to federal, state, and local regulations. Fertilizers will be applied only in the minimum amounts recommended by the manufacturer. Fertilizers will be worked into the soil to limit exposure to stormwater. Fertilizers will be stored under cover and partially used bags will be transferred to a sealable bin to avoid spills. Sanitary Waste Portable lavatories are located on -site and are serviced on a regular basis by a contractor. They will be located in upland areas away from direct contact with surface waters. Any spills occurring during servicing will be cleaned up immediately, including any contaminated soils, and disposed of according to all federal, state, and local regulations. Concrete Concrete trucks will not be allowed to wash out or discharge surplus concrete or drum wash water on the site, except in a specially designated concrete washout area which contains all wash water resulting from washout activities. Form release oil used for decorative stonework will be applied over a pallet covered with an absorbent material to collect excess fluid. The absorbent material will be replaced and disposed of properly when saturated. Water Testing When testing/cleaning of water supply lines, the discharge from the tested pipe will be collected and conveyed to a completed stormwater pipe system for ultimate discharge into a sedimentation basin or SWMBMP facility. Authorized Non-Stormwater Discharges The following table (Table 4) displays non-stormwater discharges from construction activities that are authorized by this general permit when discharged in compliance with the permit: Table 4. Authorized Non-Storrnwater Discharges A Discharges from firefighting activities and/or fire hydrant flushings. B Waters used to wash vehicles or equipment. ' C Landscape irrigation, or water used to control dust. D Uncontaminated waterline flushings, air conditioning/compressor condensate, and ground or spring E Potable water sources, including uncontaminated waterline flushings. F Routine external building wash down. r G Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred (or where all spilled or leaked material has been removed prior to washing). r H Foundation or footing drains where flows are not contaminated with process materials such as solvents. I Uncontaminated excavation dewatering, including dewatering of trenches and excavations. Where soaps, solvents, or detergents have not been used; and where the wash water has been filtered, settled, or similarly treated prior to discharge. BMP MAP Concrete Washout Portable Toilet Material Storage Trash Container Fueling Station A -- — N30'65'35"E 130462' k a i STS- 1 i I I I � I ,r 5.90 It IX I � r � I GRAP IC SCALE 80 0 40 80 160 ` 20� y;. 1 inch FEET 80 ft. I /%/ LEGEND LEGEND SAFETY FENCE PER VESCH 3.01 LIMITS OF LAND DISTURBANCE 5Bi - CE CONSTRUCTION ENTRANCE PER VESCH 3.02 , � / _ i `--i O 4 4 4 DIVERSION DIKE SF SUPER SILT FENCE PER VESCH 3.05 BOUNDARY LINE I INLET PROTECTION PER VESCH 3.07 ---fSILT FENCE DIRECTION OF FLOW i DIVERSION DIKE PER VESCH 3.09 / / ✓ , / DD 653.75 PROPOSED CONTOUR IN RIGHT OF WAY DIVERSION PER VESCH 3. r11 ----------- DRAINAGE DIVIDE SB SEDIMENT BASIN PER VESCH 3.14 SOILS LINE OP OUTLET PROTECTION PER VESCH 3.18 WATER WAY TS TEMPORARY SEEDING PER VESCH 3.31 p5 PERMANENT SEEDING PER VESCH 3.32 \ TREELINE CD PRESERVED SLOPES II I � � �� ��` ,r / / � /� � MANAGED SLOPES O \G o / I, , TP TREE PROTECTION TAPE PER VESCH 3.38 �OO SWM FOREST & // DC DUST CONTROL PER VESCH 3.39 � O OPEN SPACE EASEMENT r SCOTT/R. C71-5LLINS2 Lic. No. 0357911a 8/04/20OA w4 %&IONAT. H z z z Z w w w w 0 O O O u U U U Z O J up � � 7 I_ a O O O V Lu N N N Z W U) 00 00 m 0 U) � � .Ni O O H > z d d d ..ggg3 H a a a > o o a o W W W W LV�>>> W 01 O M N T V L9 qrm- 1 M J CO in. i M 1..� N O WN N ' W >_ W l� ZJ _ 06 O L9 O T� Z=� U U) W Y w U in 5 0 Z W W � J J w _ w J Q � 0 7 O O 0 N U CO F � 0- 1 Ln JOB NO. 182150 SCALE 111=80' SHEET NO. 4 a Section 7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload allocation, and exceptional waters. (Provide detailed measures for any applicable TMDL) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Stormwater Pollution Prevention Plan (SWPPP) Impaired Waters / TMDL Statement Receiving Waters The receiving waters for this site is the South Fork Rivanna River. The USGS Quad map and National Wetlands Inventory (NWI) map can be found within this section. The receiving waters for this project are impaired. Factsheets for waters identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report (along with any associated documentation) are included in this Section. Total Maximum Daily Load (TMDL) Limitations & Impaired Waters Upon obtaining coverage under the 2019 Construction General Permit, DEQ will determine if the land disturbing activity will discharge to a TMDL water body and identify any additional measures needed to address the TMDL. This project resides within the Chesapeake Bay watershed, for which a TMDL wasteload allocation has been established. The Chesapeake Bay TMDL is a comprehensive "pollution diet" to restore the health of the Bay and its local streams, creeks and rivers. The Chesapeake Bay TMDL — the largest such cleanup plan ever developed by the U.S. Environmental Protection Agency (EPA) — sets limits on nitrogen, phosphorus and sediment pollution necessary to meet water quality standards in the Bay and its tidal rivers. The Chesapeake Bay TMDL was prompted by insufficient restoration progress and continued poor water quality in the Bay and its contributing rivers. The TMDL is designed to ensure that all pollution control measures needed to fully restore the Bay and its tidal rivers are in place by 2025. Discharges of stormwater from construction activities to surface waters identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report or for which a TMDL wasteload allocation has been established and approved prior to the term of the general permit for a sediment -related parameter or nutrients are not eligible for coverage under the general permit unless the operator develops, implements, and maintains a SWPPP that minimizes the pollutants of concern and, when applicable, is consistent with the assumptions and requirements of the approved TMDL wasteload allocations. In accordance with Part I B 4, control measures shall minimize the pollutants of concern and, when applicable, are consistent with the assumptions and requirements of the approved TMDL wasteload allocations for waters identified as having impairments in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report. Stabilization requirements (7 days after final grade is reached), inspection frequency, and application of nutrients for projects with impaired waters shall follow the guidelines set forth within Parts II B 5-7. Fact Sheets for Impaired (Category 4 or 5) Waters in 2018 James River Basin Cause Group Code: H26R-04-BEN South Fork Rivanna River Cause Location: South Fork Rivanna River from the RWSA SF Rivanna River Public Water Intake downstream to its confluence with the Rivanna River. (Start Mile: 3.47 End Mile: 0.00 Total Impaired Size: 3.47 Miles) City / County: Albemarle Co. Use(s): Aquatic Life Cause(s) / VA Category: Benthic-Macroinvertebrate Bioassessments / 5A This segment is impaired due to exceedences of the General Standard for Benthics at stations: 2-RRS001.81 (Impaired for VSCI) and 2-RRS-RVN31-RCA (Impaired for VSCI). Initial Listing Date: 2010. Cycle TMDL Cause First Dev. Water Assessment Unit / Water Name / Location Desc. Category Cause Name Listed Priority Size VAV-H26R_RRS01A00 / Rivanna River South Fork / South Fork 5A Benthic-Macroinvertebrate 2010 H 3.47 Rivanna River from the RWSA SF Rivanna River Public Water Intake Bioassessments downstream to its confluence with the Rivanna River. South Fork Rivanna River Estuary Reservoir River Aquatic Life (Sq. Miles) (Acres) (Miles) Benthic-Macroinvertebrate Bioassessments - Total Impaired Size by Water Type: 3.47 Sources: Dam or Impoundment Municipal (Urbanized High Non -Point Source Density Area) Draft 2018 Appendix 5 - 968 L:O l Wi l gi i eva.V l naiolcIo V l uco ovvrrrm IUiI UZ VIc4gilly.r1i ` MJr rSPry r�r PP<n 3 Dec°e ! i OP J nnblePalh , p 1pre NIIL0 do pV" t ° `o. gmra RuI,ePPo to o fk : o N F � J E 0 p PJperliela Or f sa v'y °oa m HOII C co ,NP a9. <a RohvmeogP c Pb 10 t1P P,° a P00 c ¢' b.• W saa o�i�. Hu eyo� SPY ` an G P 3'O` a0 P—nal Creek D, Poes Ln a°F CI a °'� Pd o JpOtlO °re PSPwaoySr o. P°oa <n thornndg. W.r For 1°PeJ `ao ab a r 0,6 E 1 =e CI E m, ¢ 3 vY p P eS`` YYda �\POT` ePe Ln Polo crop Ya• Pe RP PY°Psj° m g YPP & i 0.vi bnvb A b5 cP..: •� Penn Yo` oPo i r Alternate County `'n0 a oo„P kpi VA Vie `�mo P po+:<ya Q Project Area Source: World Street Map - ESRI Wetiand Studies and Solutions, Inc. a Will . company Vicinity Map Brookhill- 9-11 WSSI #31005.01 NORTH 0 2,000 Feet Original Scale. 1 "= 2 000' Exhibit 2 cr31UUUSU1UWXJ1UUe.mX6lb%Bli nmrues sWFFFXJi ULl i Ua Ubusmza 1�s J' ti r ' k . i a ✓ Monday', � ��' -. ,J . � . o Q Project Area Charlottesville East, VA 1999 Longitude: 78°27'9"W, 78.452461°W Latitude: 38'6'31"N, 38.108594'N Hydrologic Unit Code (HUC): 020802040203 HUC12 Name: South Fork Rivanna River COE Region: Eastern Mountains and Piedmont USGS 7.5' Quadrangle Map Brookhill- 9-11 WSSI #31005.01 NORTH 0 2000 Feet Original Scale: 1 "= 2,000' Wetland Studies and Solutions, Inc. Exhibit 3 a DAVEYI company PWHx UBH Q Project Area Wetland Type 0 Open Water - Freshwater Forested/Shrub Wetland 0 Freshwater Emergent Wetland O Estuarine and Marine Wetland 0 Other Digital National Wetlands Inventory Map Brookhill- 9-11 WSSI #31005.01 Source: U.S. Fish and Wildlife Service; March 2019 NORTH oaa Feet Original Scale: 1 "= 1,000' Wetland Studies and Solutions, Inc. Exhibit 4 a DAVEY1. company Section 8. Qualified personnel The following personnel are responsible for inspections; (Provide the name, telephone number, and qualifications of the qualified personnel conducting inspections.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Qualified Personnel Name: Caroline Hollandsworth Qualifications: DEQ Dual Combined Administrator Company: wetland Studies and Solutions, Inc. P Y� Name: Qualifications: Company: Name: Company: Qualified Personnel Name: Kathy Dobbie Qualifications' DEQ Erosion and Sediment Control Combined Administrator Company: Wetland Studies and Solutions, Inc. Name: Bobby Rae Allen Qualifications' DEQ Erosion and Sediment Control Combined Administrator Company: Wetland Studies and Solutions, Inc. Name: Qualifications: Company: Wetland Studies and Solutions, Inc. Qualified E&S and SW Inspectors Updated:O8/26/2020 VA DEQ E&S Certifications VA DEQ STORMWATER Certifications DOT US Certifications National Certs. WSSI Office/Depart. RLD Program Admin. Inspector Plan Review Certification # Program Admin. Inspector Plan Review Certification # NCDOT VDOT CESSWI CPESC Bryce Miller RVA-Compliance X X X DCA0329 X X X DCA0329 X X X X Caroline Hollandsworth RVA-Compliance X X X DCA0457 X X X DCA0457 X X X TBS Terry Williard RVA-Compliance X X X DCA0421 X X X DCA0421 X X X TBS Amanda Ward RVA-Compliance X X X X DCA0470 X X X DCA0470 TBS X TBS TBS Bobby Rae Allen RVA-Compliance X X X X ESCA0406 X TBS TBS n/a TBS X TBS TBS Kathy Dobbie RVA-Compliance X X X X ESCA0420 X X X LProvisional TBS TBS TBS TBS TBS = To Be Scheduled Note 1- DEQ Combined Administrators have all three E&S or Stormwater Certifications Note 2 - DEQ Dual Combined Administrators have all six US and Stormwater Certifications Section 9. Signed Certification (Provide certification according to 9VAC25-870-370) CERTIFICATION "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Operator Name: Jeremy Swink Company: Stanley Martin Companies, LLC. Title: Vice president- Charlottesvi!!p & Richmond Signature: Date: V Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 10. Delegation of authority. (Provide the persons or positions with authority to sign inspection reports or to modify the stonnwater pollution prevention plan. A formal, signed delegation of authority is needed.) Delegation of Authority 1, Jeremy Swink (name), hereby designate the person or specifically described position below to be a duly authorized representative for the purpose of overseeing compliance with environmental requirements, including the Construction General Permit, at the Brookhill- Block 9-11 construction site. The designee is authorized to sign any reports, stormwater pollution prevention plans and all other documents required by the permit. Qualified Environmental Compliance Inspectors (name of person or position) Wetland Studies and Solutions, Inc. (company) 717 N. Courthouse Rd. (address) North Chesterfield, Virginia 23236 (city, state, zip) 804-253-9880 (phone) By signing this authorization, I confirm that I meet the requirements to make such a designation as set forth in the Construction General Permit (CGP), and that the designee above meets the definition of a "duly authorized representative". Operator Name: Jeremy Swink Company: Stanley Martin Companies, LLC Title: Vice President- Land, Charlottesville & Richmond Signature: Date: / /� ems% Z'$, zozo Issued — 10/2014 Stonnwater Pollution Prevention Plan (SWPPP) Albemarle County Section 11. General permit copy (Provide a copy of the construction general permit, 9VAC25-880) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County COMMONWEALTH of VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY General Permit No.: VAR10 Effective Date: July 1, 2019 Expiration Date: June 30, 2024 GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION ACTIVITIES AUTHORIZATION TO DISCHARGE UNDER THE VIRGINIA STORMWATER MANAGEMENT PROGRAM AND THE VIRGINIA STORMWATER MANAGEMENT ACT In compliance with the provisions of the Clean Water Act, as amended, and pursuant to the Virginia Stormwater Management Act and regulations adopted pursuant thereto, operators of construction activities are authorized to discharge to surface waters within the boundaries of the Commonwealth of Virginia, except those specifically named in State Water Control Board regulations that prohibit such discharges. The authorized discharge shall be in accordance with the registration statement filed with the Department of Environmental Quality, this cover page, Part I - Discharge Authorization and Special Conditions, Part II - Stormwater Pollution Prevention Plan, and Part III - Conditions Applicable to All VPDES Permits as set forth in this general permit. Construction General Permit Effective July 1, 2019 Page 2 of 26 10M.T 1 DISCHARGE AUTHORIZATION AND SPECIAL CONDITIONS A. Coverage under this general permit. During the period beginning with the date of coverage under this general permit and lasting until the general permit's expiration date, the operator is authorized to discharge stormwater from construction activities. This general permit also authorizes stormwater discharges from support activities (e.g., concrete or asphalt batch plants, equipment staging yards, material storage areas, excavated material disposal areas, borrow areas) located on -site or off -site provided that: a. The support activity is directly related to the construction activity that is required to have general permit coverage for discharges of stormwater from construction activities; b. The support activity is not a commercial operation, nor does it serve multiple unrelated construction activities by different operators; c. The support activity does not operate beyond the completion of the last construction activity it supports; d. The support activity is identified in the registration statement at the time of general permit coverage; e. Appropriate control measures are identified in a stormwater pollution prevention plan and implemented to address the discharges from the support activity areas; and f. All applicable state, federal, and local approvals are obtained for the support activity. B. Limitations on coverage. 1. Post -construction discharges. This general permit does not authorize stormwater discharges that originate from the site after construction activities have been completed and the site, including any support activity sites covered under the general permit registration, has undergone final stabilization. Post -construction industrial stormwater discharges may need to be covered by a separate VPDES permit. Discharges mixed with nonstormwater. This general permit does not authorize discharges that are mixed with sources of nonstormwater, other than those discharges that are identified in Part I E (Authorized nonstormwater discharges) and are in compliance with this general permit. Discharges covered by another state permit. This general permit does not authorize discharges of stormwater from construction activities that have been covered under an individual permit or required to obtain coverage under an alternative general permit. Page 3 of 26 4. Impaired waters and total maximum daily load (TMDL) limitation. Nutrient and sediment impaired waters. Discharges of stormwater from construction activities to surface waters identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report or for which a TMDL wasteload allocation has been established and approved prior to the term of this general permit for (i) sediment or a sediment -related parameter (i.e., total suspended solids or turbidity) or (ii) nutrients (i.e., nitrogen or phosphorus) are not eligible for coverage under this general permit unless the operator develops, implements, and maintains a stormwater pollution prevention plan (SWPPP) in accordance with Part II B 5 of this permit that minimizes the pollutants of concern and, when applicable, is consistent with the assumptions and requirements of the approved TMDL wasteload allocations and implements an inspection frequency consistent with Part II G 2 a. Polychlorinated biphenyl (PCB) impaired waters. Discharges of stormwater from construction activities that include the demolition of any structure with at least 10,000 square feet of floor space built or renovated before January 1, 1980, to surface waters identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report or for which a TMDL wasteload allocation has been established and approved prior to the term of this general permit for PCB are not eligible for coverage under this general permit unless the operator develops, implements, and maintains a SWPPP in accordance with Part II B 6 of this permit that minimizes the pollutants of concern and, when applicable, is consistent with the assumptions and requirements of the approved TMDL wasteload allocations, and implements an inspection frequency consistent with Part II G 2 a. Exceptional waters limitation. Discharges of stormwater from construction activities not previously covered under the general permit effective on July 1, 2014, to exceptional waters identified in 9VAC25-260-30 A 3 c are not eligible for coverage under this general permit unless the operator develops, implements, and maintains a SWPPP in accordance with Part II B 7 of this permit and implements an inspection frequency consistent with Part II G 2 a. 6. There shall be no discharge of floating solids or visible foam in other than trace amounts C. Commingled discharges. Discharges authorized by this general permit may be commingled with other sources of stormwater that are not required to be covered under a state permit, so long as the commingled discharge is in compliance with this general permit. Discharges authorized by a separate state or VPDES permit may be commingled with discharges authorized by this general permit so long as all such discharges comply with all applicable state and VPDES permit requirements. D. Prohibition of nonstormwater discharges. Except as provided in Parts I A 2, 1 C, and I E, all discharges covered by this general permit shall be composed entirely of stormwater associated with construction activities. All other discharges including the following are prohibited: 1. Wastewater from washout of concrete; 2. Wastewater from the washout and cleanout of stucco, paint, form release oils, curing compounds, and other construction materials; Page 4 of 26 3. Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance; 4. Oils, toxic substances, or hazardous substances from spills or other releases; and 5. Soaps, solvents, or detergents used in equipment and vehicle washing. E. Authorized nonstormwater discharges. The following nonstormwater discharges from construction activities are authorized by this general permit when discharged in compliance with this general permit: 1. Discharges from firefighting activities; 2. Fire hydrant flushings; 3. Waters used to wash vehicles or equipment where soaps, solvents, or detergents have not been used and the wash water has been filtered, settled, or similarly treated prior to discharge; 4. Water used to control dust that has been filtered, settled, or similarly treated prior to discharge; 5. Potable water sources, including uncontaminated waterline flushings, managed in a manner to avoid an instream impact; 6. Routine external building wash down where soaps, solvents or detergents have not been used and the wash water has been filtered, settled, or similarly treated prior to discharge; 7. Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred (or where all spilled or leaked material has been removed prior to washing); where soaps, solvents, or detergents have not been used; and where the wash water has been filtered, settled, or similarly treated prior to discharge; 8. Uncontaminated air conditioning or compressor condensate; 9. Uncontaminated ground water or spring water; 10. Foundation or footing drains where flows are not contaminated with process materials such as solvents; 11. Uncontaminated excavation dewatering, including dewatering of trenches and excavations that have been filtered, settled, or similarly treated prior to discharge; and 12. Landscape irrigation. F. Termination of general permit coverage. 1. The operator of the construction activity shall submit a notice of termination in accordance with 9VAC25-880-60, unless a registration statement was not required to be submitted in accordance with 9VAC25-880-50 A 1 c or A 2 b for single-family detached residential structures, to the VSMP authority after one or more of the following conditions have been met: Page 5 of 26 a. Necessary permanent control measures included in the SWPPP for the site are in place and functioning effectively and final stabilization has been achieved on all portions of the site for which the operator has operational control. When applicable, long term responsibility and maintenance requirements for permanent control measures shall be recorded in the local land records prior to the submission of a complete and accurate notice of termination and the construction record drawing prepared; b. Another operator has assumed control over all areas of the site that have not been finally stabilized and obtained coverage for the ongoing discharge; c. Coverage under an alternative VPDES or state permit has been obtained; or d. For individual lots in residential construction only, final stabilization as defined in 9VAC25- 880-1 has been completed, including providing written notification to the homeowner and incorporating a copy of the notification and signed certification statement into the SWPPP, and the residence has been transferred to the homeowner. The notice of termination shall be submitted no later than 30 days after one of the above conditions in subdivision 1 of this subsection is met. 3. Termination of authorization to discharge for the conditions set forth in subdivision 1 a of this subsection shall be effective upon notification from the department that the provisions of subdivision 1 a of this subsection have been met or 60 days after submittal of a complete and accurate notice of termination in accordance with 9VAC25-880-60 C, whichever occurs first. 4. Authorization to discharge terminates at midnight on the date that the notice of termination is submitted for the conditions set forth in subdivisions 1 b through 1 d of this subsection unless otherwise notified by the VSMP authority or department. 5. The notice of termination shall be signed in accordance with Part III K of this general permit. G. Water quality protection. 1. The operator shall select, install, implement, and maintain control measures as identified in the SWPPP at the construction site that minimize pollutants in the discharge as necessary to ensure that the operator's discharge does not cause or contribute to an excursion above any applicable water quality standard. If it is determined by the department that the operator's discharges are causing, have reasonable potential to cause, or are contributing to an excursion above any applicable water quality standard, the department, in consultation with the VSMP authority, may take appropriate enforcement action and require the operator to: a. Modify or implement additional control measures in accordance with Part II C to adequately address the identified water quality concerns; b. Submit valid and verifiable data and information that are representative of ambient conditions and indicate that the receiving water is attaining water quality standards; or Page 6 of 26 c. Submit an individual permit application in accordance with 9VAC25-870-410 B 3. All written responses required under this chapter shall include a signed certification consistent with Part III K. STORMWATER POLLUTION PREVENTION PLAN A. Stormwater pollution prevent plan. A stormwater pollution prevention plan (SWPPP) shall be developed prior to the submission of a registration statement and implemented for the construction activity, including any support activity, covered by this general permit. SWPPPs shall be prepared in accordance with good engineering practices. Construction activities that are part of a larger common plan of development or sale and disturb less than one acre may utilize a SWPPP template provided by the department and need not provide a separate stormwater management plan if one has been prepared and implemented for the larger common plan of development or sale. The SWPPP requirements of this general permit may be fulfilled by incorporating by reference other plans such as a spill prevention control and countermeasure (SPCC) plan developed for the site under § 311 of the federal Clean Water Act or best management practices (BMP) programs otherwise required for the facility provided that the incorporated plan meets or exceeds the SWPPP requirements of Part II B. All plans incorporated by reference into the SWPPP become enforceable under this general permit. If a plan incorporated by reference does not contain all of the required elements of the SWPPP, the operator shall develop the missing elements and include them in the SWPPP. 3. Any operator that was authorized to discharge under the general permit effective July 1, 2014, and that intends to continue coverage under this general permit, shall update its stormwater pollution prevention plan to comply with the requirements of this general permit no later than 60 days after the date of coverage under this general permit. B. Contents. The SWPPP shall include the following items: 1. General information. a. A signed copy of the registration statement, if required, for coverage under the general VPDES permit for discharges of stormwater from construction activities; b. Upon receipt, a copy of the notice of coverage under the general VPDES permit for discharges of stormwater from construction activities (i.e., notice of coverage letter); c. Upon receipt, a copy of the general VPDES permit for discharges of stormwater from construction activities; d. A narrative description of the nature of the construction activity, including the function of the project (e.g., low density residential, shopping mall, highway, etc.); e. A legible site plan identifying: Page 7 of 26 (1) Directions of stormwater flow and approximate slopes anticipated after major grading activities; (2) Limits of land disturbance including steep slopes and natural buffers around surface waters that will not be disturbed; (3) Locations of major structural and nonstructural control measures, including sediment basins and traps, perimeter dikes, sediment barriers, and other measures intended to filter, settle, or similarly treat sediment, that will be installed between disturbed areas and the undisturbed vegetated areas in order to increase sediment removal and maximize stormwater infiltration; (4) Locations of surface waters; (5) Locations where concentrated stormwater is discharged; (6) Locations of any support activities, including (i) areas where equipment and vehicle washing, wheel wash water, and other wash water is to occur; (ii) storage areas for chemicals such as acids, fuels, fertilizers, and other lawn care chemicals; (iii) concrete wash out areas; (iv) vehicle fueling and maintenance areas; (v) sanitary waste facilities, including those temporarily placed on the construction site; and (vi) construction waste storage; and (7) When applicable, the location of the on -site rain gauge or the methodology established in consultation with the VSMP authority used to identify measurable storm events for inspection as allowed by Part II G 2 a (1) (ii) or Part II G 2 b (2). Erosion and sediment control plan. a. An erosion and sediment control plan designed and approved in accordance with the Virginia Erosion and Sediment Control Regulations (9VAC25-840), an "agreement in lieu of a plan" as defined in 9VAC25-840-10 from the VESCP authority, or an erosion and sediment control plan prepared in accordance with annual standards and specifications approved by the department. b. All erosion and sediment control plans shall include a statement describing the maintenance responsibilities required for the erosion and sediment controls used. c. An approved erosion and sediment control plan, "agreement in lieu of a plan," or erosion and sediment control plan prepared in accordance with department -approved annual standards and specifications, implemented to: (1) Control the volume and velocity of stormwater runoff within the site to minimize soil erosion; (2) Control stormwater discharges, including peak flow rates and total stormwater volume, to minimize erosion at outlets and to minimize downstream channel and stream bank erosion; Page 8 of 26 (3) Minimize the amount of soil exposed during the construction activity; (4) Minimize the disturbance of steep slopes; (5) Minimize sediment discharges from the site in a manner that addresses (i) the amount, frequency, intensity, and duration of precipitation; (ii) the nature of resulting stormwater runoff; and (iii) soil characteristics, including the range of soil particle sizes present on the site; (6) Provide and maintain natural buffers around surface waters, direct stormwater to vegetated areas to increase sediment removal, and maximize stormwater infiltration, unless infeasible; (7) Minimize soil compaction and, unless infeasible, preserve topsoil; (8) Ensure initiation of stabilization activities, as defined in 9VAC25-880-1, of disturbed areas immediately whenever any clearing, grading, excavating, or other land - disturbing activities have permanently ceased on any portion of the site, or temporarily ceased on any portion of the site and will not resume for a period exceeding 14 days; and (9) Utilize outlet structures that withdraw stormwater from the surface (i.e., above the permanent pool or wet storage water surface elevation), unless infeasible, when discharging from sediment basins or sediment traps. 3. Stormwater management plan. a. Except for those projects identified in Part II B 3 b, a stormwater management plan approved by the VSMP authority as authorized under the Virginia Stormwater Management Program (VSMP) Regulation (9VAC25-870), or an "agreement in lieu of a stormwater management plan" as defined in 9VAC25-870-10 from the VSMP authority, or a stormwater management plan prepared in accordance with annual standards and specifications approved by the department. b. For any operator meeting the conditions of 9VAC25-870-47 B of the VSMP regulation, an approved stormwater management plan is not required. In lieu of an approved stormwater management plan, the SWPPP shall include a description of, and all necessary calculations supporting, all post -construction stormwater management measures that will be installed prior to the completion of the construction process to control pollutants in stormwater discharges after construction operations have been completed. Structural measures should be placed on upland soils to the degree possible. Such measures must be designed and installed in accordance with applicable VESCP authority, VSMP authority, state, and federal requirements, and any necessary permits must be obtained. Pollution prevention plan. A pollution prevention plan that addresses potential pollutant - generating activities that may reasonably be expected to affect the quality of stormwater discharges from the construction activity, including any support activity. The pollution prevention plan shall: a. Identify the potential pollutant -generating activities and the pollutant that is expected to be exposed to stormwater; Page 9 of 26 b. Describe the location where the potential pollutant -generating activities will occur, or if identified on the site plan, reference the site plan; c. Identify all nonstormwater discharges, as authorized in Part I E of this general permit, that are or will be commingled with stormwater discharges from the construction activity, including any applicable support activity; d. Identify the person responsible for implementing the pollution prevention practice or practices for each pollutant -generating activity (if other than the person listed as the qualified personnel); e. Describe the pollution prevention practices and procedures that will be implemented to: (1) Prevent and respond to leaks, spills, and other releases including (i) procedures for expeditiously stopping, containing, and cleaning up spills, leaks, and other releases; and (ii) procedures for reporting leaks, spills, and other releases in accordance with Part III G; (2) Prevent the discharge of spilled and leaked fuels and chemicals from vehicle fueling and maintenance activities (e.g., providing secondary containment such as spill berms, decks, spill containment pallets, providing cover where appropriate, and having spill kits readily available); (3) Prevent the discharge of soaps, solvents, detergents, and wash water from construction materials, including the clean-up of stucco, paint, form release oils, and curing compounds (e.g., providing (i) cover (e.g., plastic sheeting or temporary roofs) to prevent contact with stormwater; (ii) collection and proper disposal in a manner to prevent contact with stormwater; and (iii) a similarly effective means designed to prevent discharge of these pollutants); (4) Minimize the discharge of pollutants from vehicle and equipment washing, wheel wash water, and other types of washing (e.g., locating activities away from surface waters and stormwater inlets or conveyance and directing wash waters to sediment basins or traps, using filtration devices such as filter bags or sand filters, or using similarly effective controls); (5) Direct concrete wash water into a leak -proof container or leak -proof settling basin. The container or basin shall be designed so that no overflows can occur due to inadequate sizing or precipitation. Hardened concrete wastes shall be removed and disposed of in a manner consistent with the handling of other construction wastes. Liquid concrete wastes shall be removed and disposed of in a manner consistent with the handling of other construction wash waters and shall not be discharged to surface waters; (6) Minimize the discharge of pollutants from storage, handling, and disposal of construction products, materials, and wastes including (i) building products such as asphalt sealants, copper flashing, roofing materials, adhesives, and concrete admixtures; (ii) pesticides, herbicides, insecticides, fertilizers, and landscape Page 10 of 26 materials; and (iii) construction and domestic wastes such as packaging materials, scrap construction materials, masonry products, timber, pipe and electrical cuttings, plastics, Styrofoam, concrete, and other trash or building materials; (7) Prevent the discharge of fuels, oils, and other petroleum products, hazardous or toxic wastes, waste concrete, and sanitary wastes; (8) Address any other discharge from the potential pollutant -generating activities not addressed above; (9) Minimize the exposure of waste materials to precipitation by closing or covering waste containers during precipitation events and at the end of the business day, or implementing other similarly effective practices. Minimization of exposure is not required in cases where the exposure to precipitation will not result in a discharge of pollutants; and f. Describe procedures for providing pollution prevention awareness of all applicable wastes, including any wash water, disposal practices, and applicable disposal locations of such wastes, to personnel in order to comply with the conditions of this general permit. The operator shall implement the procedures described in the SWPPP. SWPPP requirements for discharges to nutrient and sediment impaired waters. For discharges to surface waters (i) identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report or (ii) with an applicable TMDL wasteload allocation established and approved prior to the term of this general permit for sediment for a sediment - related parameter (i.e., total suspended solids or turbidity) or nutrients (i.e., nitrogen or phosphorus), the operator shall: a. Identify the impaired waters, approved TMDLs, and pollutants of concern in the SWPPP; and b. Provide clear direction in the SWPPP that: (1) Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final grade is reached on any portion of the site; (2) Nutrients shall be applied in accordance with manufacturer's recommendations or an approved nutrient management plan and shall not be applied during rainfall events; and (3) A modified inspection schedule shall be implemented in accordance with Part II G 2 a. SWPPP requirements for discharges to polychlorinated biphenyl (PCB) impaired waters. For discharges from construction activities that include the demolition of any structure with at least 10,000 square feet of floor space built or renovated before January 1, 1980, to surface waters (i) identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report or (ii) with an applicable TMDL wasteload allocation established and approved prior to the term of this general permit for PCB, the operator shall: Page 11 of 26 a. Identify the impaired waters, approved TMDLs, and pollutant of concern in the SWPPP; b. Implement the approved erosion and sediment control plan in accordance with Part II B 2; c. Dispose of waste materials in compliance with applicable state, federal, and local requirements; and d. Implement a modified inspection schedule in accordance with Part II G 2 a. 7. SWPPP requirements for discharges to exceptional waters. For discharges to surface waters identified in 9VAC25-260-30 A 3 c as an exceptional water, the operator shall: a. Identify the exceptional surface waters in the SWPPP; and b. Provide clear direction in the SWPPP that: (1) Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final grade is reached on any portion of the site; (2) Nutrients shall be applied in accordance with manufacturer's recommendations or an approved nutrient management plan and shall not be applied during rainfall events; and (3) A modified inspection schedule shall be implemented in accordance with Part II G 2 a. 8. Identification of qualified personnel. The name, phone number, and qualifications of the qualified personnel conducting inspections required by this general permit. 9. Delegation of authority. The individuals or positions with delegated authority, in accordance with Part III K, to sign inspection reports or modify the SWPPP. 10. SWPPP signature. The SWPPP shall be signed and dated in accordance with Part III K. C. SWPPP amendments, modification, and updates. 1. The operator shall amend the SWPPP whenever there is a change in the design, construction, operation, or maintenance that has a significant effect on the discharge of pollutants to surface waters and that has not been previously addressed in the SWPPP. The SWPPP shall be amended if, during inspections or investigations by the operator's qualified personnel, or by local, state, or federal officials, it is determined that the existing control measures are ineffective in minimizing pollutants in discharges from the construction activity. Revisions to the SWPPP shall include additional or modified control measures designed and implemented to correct problems identified. If approval by the VESCP authority, VSMP authority, or department is necessary for the control measure, revisions to the SWPPP shall be completed no later than seven calendar days following approval. Implementation of these additional or modified control measures shall be accomplished as described in Part II H. Page 12 of 26 3. The SWPPP shall clearly identify the contractors that will implement and maintain each control measure identified in the SWPPP. The SWPPP shall be amended to identify any new contractor that will implement and maintain a control measure. 4. The operator shall update the SWPPP as soon as possible but no later than seven days following any modification to its implementation. All modifications or updates to the SWPPP shall be noted and shall include the following items: a. A record of dates when: (1) Major grading activities occur; (2) Construction activities temporarily or permanently cease on a portion of the site; and (3) Stabilization measures are initiated; b. Documentation of replaced or modified controls where periodic inspections or other information have indicated that the controls have been used inappropriately or incorrectly and were modified; c. Areas that have reached final stabilization and where no further SWPPP or inspection requirements apply; d. All properties that are no longer under the legal control of the operator and the dates on which the operator no longer had legal control over each property; e. The date of any prohibited discharges, the discharge volume released, and what actions were taken to minimize the impact of the release; f. Measures taken to prevent the reoccurrence of any prohibited discharge; and g. Measures taken to address any evidence identified as a result of an inspection required under Part II G. 5. Amendments, modifications, or updates to the SWPPP shall be signed in accordance with Part III K. D. Public notification. Upon commencement of land disturbance, the operator shall post conspicuously a copy of the notice of coverage letter near the main entrance of the construction activity. For linear projects, the operator shall post the notice of coverage letter at a publicly accessible location near an active part of the construction project (e.g., where a pipeline crosses a public road). The operator shall maintain the posted information until termination of general permit coverage as specified in Part I F. E. SWPPP availability. 1. Operators with day-to-day operational control over SWPPP implementation shall have a copy of the SWPPP available at a central location on -site for use by those identified as having responsibilities under the SWPPP whenever they are on the construction site. Page 13 of 26 The operator shall make the SWPPP and all amendments, modifications, and updates available upon request to the department, the VSMP authority, the EPA, the VESCP authority, local government officials, or the operator of a municipal separate storm sewer system receiving discharges from the construction activity. If an on -site location is unavailable to store the SWPPP when no personnel are present, notice of the SWPPP's location shall be posted near the main entrance of the construction site. The operator shall make the SWPPP available for public review in an electronic format or in hard copy. Information for public access to the SWPPP shall be posted and maintained in accordance with Part II D. If not provided electronically, public access to the SWPPP may be arranged upon request at a time and at a publicly accessible location convenient to the operator or his designee but shall be no less than once per month and shall be during normal business hours. Information not required to be contained within the SWPPP by this general permit is not required to be released. F. SWPPP implementation. The operator shall implement the SWPPP and subsequent amendments, modifications, and updates from commencement of land disturbance until termination of general permit coverage as specified in Part I F. All control measures shall be properly maintained in effective operating condition in accordance with good engineering practices and, where applicable, manufacturer specifications. If a site inspection required by Part II G identifies a control measure that is not operating effectively, corrective actions shall be completed as soon as practicable, but no later than seven days after discovery or a longer period as established by the VSMP authority, to maintain the continued effectiveness of the control measures. If site inspections required by Part II G identify an existing control measure that needs to be modified or if an additional or alternative control measure is necessary for any reason, implementation shall be completed prior to the next anticipated measurable storm event. If implementation prior to the next anticipated measurable storm event is impracticable, then additional or alternative control measures shall be implemented as soon as practicable, but no later than seven days after discovery or a longer period as established by the VSMP authority. G. SWPPP Inspections. 1. Personnel responsible for on -site and off -site inspections. Inspections required by this general permit shall be conducted by the qualified personnel identified by the operator in the SWPPP. The operator is responsible for ensuring that the qualified personnel conduct the inspection. 2. Inspection schedule. a. For construction activities that discharge to a surface water identified in Part 11 B 5 and B 6 as impaired or having an approved TMDL or Part I B 7 as exceptional, the following inspection schedule requirements apply: (1) Inspections shall be conducted at a frequency of (i) at least once every four business days or (ii) at least once every five business days and no later than 24 hours following a measurable storm event. In the event that a measurable storm event occurs when Page 14 of 26 there are more than 24 hours between business days, the inspection shall be conducted on the next business day; and (2) Representative inspections as authorized in Part II G 2 d shall not be allowed. b. Except as specified in Part II G 2 a, inspections shall be conducted at a frequency of: (1) At least once every five business days; or (2) At least once every 10 business days and no later than 24 hours following a measurable storm event. In the event that a measurable storm event occurs when there are more than 24 hours between business days, the inspection shall be conducted on the next business day. c. Where areas have been temporarily stabilized or land -disturbing activities will be suspended due to continuous frozen ground conditions and stormwater discharges are unlikely, the inspection frequency described in Part II G 2 a and 2 b may be reduced to once per month. If weather conditions (such as above freezing temperatures or rain or snow events) make discharges likely, the operator shall immediately resume the regular inspection frequency. d. Except as prohibited in Part II G 2 a (2), representative inspections may be utilized for utility line installation, pipeline construction, or other similar linear construction activities provided that: (1) Temporary or permanent soil stabilization has been installed and vehicle access may compromise the temporary or permanent soil stabilization and potentially cause additional land disturbance increasing the potential for erosion; (2) Inspections occur on the same frequency as other construction activities; (3) Control measures are inspected along the construction site 0.25 miles above and below each access point (i.e., where a roadway, undisturbed right-of-way, or other similar feature intersects the construction activity and access does not compromise temporary or permanent soil stabilization); and (4) Inspection locations are provided in the inspection report required by Part II G. e. If adverse weather causes the safety of the inspection personnel to be in jeopardy, the inspection may be delayed until the next business day on which it is safe to perform the inspection. Any time inspections are delayed due to adverse weather conditions, evidence of the adverse weather conditions shall be included in the SWPPP with the dates of occurrence. 3. Inspection requirements. a. As part of the inspection, the qualified personnel shall: (1) Record the date and time of the inspection and, when applicable, the date and rainfall amount of the last measurable storm event; Page 15 of 26 (2) Record the information and a description of any discharges occurring at the time of the inspection or evidence of discharges occurring prior to the inspection; (3) Record any land -disturbing activities that have occurred outside of the approved erosion and sediment control plan; (4) Inspect the following for installation in accordance with the approved erosion and sediment control plan, identification of any maintenance needs, and evaluation of effectiveness in minimizing sediment discharge, including whether the control has been inappropriately or incorrectly used: (a) All perimeter erosion and sediment controls, such as silt fence; (b) Soil stockpiles, when applicable, and borrow areas for stabilization or sediment trapping measures; (c) Completed earthen structures, such as dams, dikes, ditches, and diversions for stabilization and effective impoundment or flow control; (d) Cut and fill slopes; (e) Sediment basins and traps, sediment barriers, and other measures installed to control sediment discharge from stormwater; (f) Temporary or permanent channels, flumes, or other slope drain structures installed to convey concentrated runoff down cut and fill slopes; (g) Storm inlets that have been made operational to ensure that sediment laden stormwater does not enter without first being filtered or similarly treated; and (h) Construction vehicle access routes that intersect or access paved or public roads for minimizing sediment tracking; (5) Inspect areas that have reached final grade or that will remain dormant for more than 14 days to ensure: (a) Initiation of stabilization activities have occurred immediately, as defined in 9VAC25-880-1; and (b) Stabilization activities have been completed within seven days of reaching grade or stopping work; (6) Inspect for evidence that the approved erosion and sediment control plan, "agreement in lieu of a plan," or erosion and sediment control plan prepared in accordance with department -approved annual standards and specifications has not been properly implemented. This includes: Page 16 of 26 (a) Concentrated flows of stormwater in conveyances such as rills, rivulets, or channels that have not been filtered, settled, or similarly treated prior to discharge, or evidence thereof; (b) Sediment laden or turbid flows of stormwater that have not been filtered or settled to remove sediments prior to discharge; (c) Sediment deposition in areas that drain to unprotected stormwater inlets or catch basins that discharge to surface waters. Inlets and catch basins with failing sediment controls due to improper installation, lack of maintenance, or inadequate design are considered unprotected; (d) Sediment deposition on any property (including public and private streets) outside of the construction activity covered by this general permit; (e) Required stabilization has not been initiated or completed or is not effective on portions of the site; (f) Sediment basins without adequate wet or dry storage volume or sediment basins that allow the discharge of stormwater from below the surface of the wet storage portion of the basin; (g) Sediment traps without adequate wet or dry storage or sediment traps that allow the discharge of stormwater from below the surface of the wet storage portion of the trap; and (h) Land disturbance or sediment deposition outside of the approved area to be disturbed; (7) Inspect pollutant generating activities identified in the pollution prevention plan for the proper implementation, maintenance, and effectiveness of the procedures and practices; (8) Identify any pollutant generating activities not identified in the pollution prevention plan; and (9) Identify and document the presence of any evidence of the discharge of pollutants prohibited by this general permit. 4. Inspection report. Each inspection report shall include the following items: a. The date and time of the inspection and, when applicable, the date and rainfall amount of the last measurable storm event; b. Summarized findings of the inspection; c. The locations of prohibited discharges; d. The locations of control measures that require maintenance; Page 17 of 26 e. The locations of control measures that failed to operate as designed or proved inadequate or inappropriate for a particular location; f. The locations where any evidence identified under Part II G 3 a (6) exists; g. The locations where any additional control measure is needed; h. A list of corrective actions required (including any changes to the SWPPP that are necessary) as a result of the inspection or to maintain permit compliance; i. Documentation of any corrective actions required from a previous inspection that have not been implemented; and The date and signature of the qualified personnel and the operator or its duly authorized representative. 5. The inspection report shall be included into the SWPPP no later than four business days after the inspection is complete. The inspection report and any actions taken in accordance with Part II shall be retained by the operator as part of the SWPPP for at least three years from the date that general permit coverage expires or is terminated. The inspection report shall identify any incidents of noncompliance. Where an inspection report does not identify any incidents of noncompliance, the report shall contain a certification that the construction activity is in compliance with the SWPPP and this general permit. The report shall be signed in accordance with Part III K of this general permit. H. Corrective actions. The operator shall implement the corrective actions identified as a result of an inspection as soon as practicable but no later than seven days after discovery or a longer period as approved by the VSMP authority. If approval of a corrective action by a regulatory authority (e.g., VSMP authority, VESCP authority, or the department) is necessary, additional control measures shall be implemented to minimize pollutants in stormwater discharges until such approvals can be obtained. The operator may be required to remove accumulated sediment deposits located outside of the construction activity covered by this general permit as soon as practicable in order to minimize environmental impacts. The operator shall notify the VSMP authority and the department as well as obtain all applicable federal, state, and local authorizations, approvals, and permits prior to the removal of sediments accumulated in surface waters including wetlands. Page 18 of 26 PART III CONDITIONS APPLICABLE TO ALL VPDES PERMITS NOTE: Discharge monitoring is not required for this general permit. If the operator chooses to monitor stormwater discharges or control measures, the operator shall comply with the requirements of subsections A, B, and C, as appropriate. A. Monitoring. 1. Samples and measurements taken for the purpose of monitoring shall be representative of the monitoring activity. Monitoring shall be conducted according to procedures approved under 40 CFR Part 136 or alternative methods approved by the U.S. Environmental Protection Agency, unless other procedures have been specified in this general permit. Analyses performed according to test procedures approved under 40 CFR Part 136 shall be performed by an environmental laboratory certified under regulations adopted by the Department of General Services (1 VAC30-45 or 1 VAC30-46). 3. The operator shall periodically calibrate and perform maintenance procedures on all monitoring and analytical instrumentation at intervals that will ensure accuracy of measurements. B. Records. 1. Monitoring records and reports shall include a. The date, exact place, and time of sampling or measurements; b. The individuals who performed the sampling or measurements; c. The dates and times analyses were performed; d. The individuals who performed the analyses; e. The analytical techniques or methods used; and f. The results of such analyses. 2. The operator shall retain records of all monitoring information, including all calibration and maintenance records and all original strip chart recordings for continuous monitoring instrumentation, copies of all reports required by this general permit, and records of all data used to complete the registration statement for this general permit, for a period of at least three years from the date of the sample, measurement, report or request for coverage. This period of retention shall be extended automatically during the course of any unresolved litigation regarding the regulated activity or regarding control standards applicable to the operator, or as requested by the board. C. Reporting monitoring results. Page 19 of 26 1. The operator shall update the SWPPP to include the results of the monitoring as may be performed in accordance with this general permit, unless another reporting schedule is specified elsewhere in this general permit. 2. Monitoring results shall be reported on a discharge monitoring report (DMR); on forms provided, approved or specified by the department; or in any format provided that the date, location, parameter, method, and result of the monitoring activity are included. If the operator monitors any pollutant specifically addressed by this general permit more frequently than required by this general permit using test procedures approved under 40 CFR Part 136 or using other test procedures approved by the U.S. Environmental Protection Agency or using procedures specified in this general permit, the results of this monitoring shall be included in the calculation and reporting of the data submitted in the DMR or reporting form specified by the department. 4. Calculations for all limitations which require averaging of measurements shall utilize an arithmetic mean unless otherwise specified in this general permit. D. Duty to provide information. The operator shall furnish, within a reasonable time, any information which the board may request to determine whether cause exists for terminating this general permit coverage or to determine compliance with this general permit. The board, department, EPA, or VSMP authority may require the operator to furnish, upon request, such plans, specifications, and other pertinent information as may be necessary to determine the effect of the wastes from his discharge on the quality of surface waters, or such other information as may be necessary to accomplish the purposes of the CWA and the Virginia Stormwater Management Act. The operator shall also furnish to the board, department, EPA, or VSMP authority, upon request, copies of records required to be kept by this general permit. E. Compliance schedule reports. Reports of compliance or noncompliance with, or any progress reports on, interim and final requirements contained in any compliance schedule of this general permit shall be submitted no later than 14 days following each schedule date. F. Unauthorized stormwater discharges. Pursuant to § 62.1-44.5 of the Code of Virginia, except in compliance with a state permit issued by the department, it shall be unlawful to cause a stormwater discharge from a construction activity. G. Reports of unauthorized discharges. Any operator who discharges or causes or allows a discharge of sewage, industrial waste, other wastes or any noxious or deleterious substance or a hazardous substance or oil in an amount equal to or in excess of a reportable quantity established under either 40 CFR Part 110, 40 CFR Part 117, 40 CFR Part 302, or § 62.1-44.34:19 of the Code of Virginia that occurs during a 24-hour period into or upon surface waters or who discharges or causes or allows a discharge that may reasonably be expected to enter surface waters, shall notify the Department of Environmental Quality of the discharge immediately upon discovery of the discharge, but in no case later than within 24 hours after said discovery. A written report of the unauthorized discharge shall be submitted to the department and the VSMP authority within five days of discovery of the discharge. The written report shall contain: 1. A description of the nature and location of the discharge; 2. The cause of the discharge; Page 20 of 26 3. The date on which the discharge occurred; 4. The length of time that the discharge continued; 5. The volume of the discharge; 6. If the discharge is continuing, how long it is expected to continue; 7. If the discharge is continuing, what the expected total volume of the discharge will be; and Any steps planned or taken to reduce, eliminate and prevent a recurrence of the present discharge or any future discharges not authorized by this general permit. Discharges reportable to the department and the VSMP authority under the immediate reporting requirements of other regulations are exempted from this requirement. H. Reports of unusual or extraordinary discharges. If any unusual or extraordinary discharge including a "bypass" or "upset," as defined in this general permit, should occur from a facility and the discharge enters or could be expected to enter surface waters, the operator shall promptly notify, in no case later than within 24 hours, the department and the VSMP authority by telephone after the discovery of the discharge. This notification shall provide all available details of the incident, including any adverse effects on aquatic life and the known number of fish killed. The operator shall reduce the report to writing and shall submit it to the department and the VSMP authority within five days of discovery of the discharge in accordance with Part III 12. Unusual and extraordinary discharges include any discharge resulting from: 1. Unusual spillage of materials resulting directly or indirectly from processing operations; 2. Breakdown of processing or accessory equipment; 3. Failure or taking out of service of some or all of the facilities; and 4. Flooding or other acts of nature. I. Reports of noncompliance. The operator shall report any noncompliance which may adversely affect surface waters or may endanger public health. An oral report to the department and the VSMP authority shall be provided within 24 hours from the time the operator becomes aware of the circumstances. The following shall be included as information that shall be reported within 24 hours under this subdivision: a. Any unanticipated bypass; and b. Any upset that causes a discharge to surface waters. 2. A written report shall be submitted within five days and shall contain: a. A description of the noncompliance and its cause; Page 21 of 26 b. The period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and c. Steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance. The department may waive the written report on a case -by -case basis for reports of noncompliance under Part III I if the oral report has been received within 24 hours and no adverse impact on surface waters has been reported. 3. The operator shall report all instances of noncompliance not reported under Part III 1 1 or 2 in writing as part of the SWPPP. The reports shall contain the information listed in Part 111 1 2. NOTE: The reports required in Part III G, H and I shall be made to the department and the VSMP authority. Reports may be made by telephone, email, or by fax. For reports outside normal working hours, leaving a recorded message shall fulfill the immediate reporting requirement. For emergencies, the Virginia Department of Emergency Management maintains a 24-hour telephone service at 1-800-468-8892. 4. Where the operator becomes aware of a failure to submit any relevant facts, or submittal of incorrect information in any report, including a registration statement, to the department or the VSMP authority, the operator shall promptly submit such facts or correct information. J. Notice of planned changes. 1. The operator shall give notice to the department and the VSMP authority as soon as possible of any planned physical alterations or additions to the permitted facility or activity. Notice is required only when: a. The operator plans an alteration or addition to any building, structure, facility, or installation that may meet one of the criteria for determining whether a facility is a new source in 9VAC25-870-420; b. The operator plans an alteration or addition that would significantly change the nature or increase the quantity of pollutants discharged. This notification applies to pollutants that are not subject to effluent limitations in this general permit; or 2. The operator shall give advance notice to the department and VSMP authority of any planned changes in the permitted facility or activity, which may result in noncompliance with state permit requirements. K. Signatory requirements. 1. Registration statement. All registration statements shall be signed as follows: a. For a corporation: by a responsible corporate officer. For the purpose of this chapter, a responsible corporate officer means: (i) a president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy -making or decision -making functions for the corporation; or (ii) the manager of one or more manufacturing, production, or operating facilities, provided the Page 22 of 26 manager is authorized to make management decisions that govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long-term compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for state permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures; b. For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or c. For a municipality, state, federal, or other public agency: by either a principal executive officer or ranking elected official. For purposes of this chapter, a principal executive officer of a public agency includes (i) the chief executive officer of the agency or (ii) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency. 2. Reports and other information. All reports required by this general permit, including SWPPPs, and other information requested by the board or the department shall be signed by a person described in Part III K 1 or by a duly authorized representative of that person. A person is a duly authorized representative only if: a. The authorization is made in writing by a person described in Part III K 1; b. The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity such as the position of plant manager, operator of a well or a well field, superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the operator. (A duly authorized representative may thus be either a named individual or any individual occupying a named position); and c. The signed and dated written authorization is included in the SWPPP. A copy shall be provided to the department and VSMP authority, if requested. 3. Changes to authorization. If an authorization under Part III K 2 is no longer accurate because a different individual or position has responsibility for the overall operation of the construction activity, a new authorization satisfying the requirements of Part III K 2 shall be submitted to the VSMP authority as the administering entity for the board prior to or together with any reports or information to be signed by an authorized representative. 4. Certification. Any person signing a document under Part III K 1 or 2 shall make the following certification: "I certify under penalty of law that I have read and understand this document and that this document and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant Page 23 of 26 penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." L. Duty to comply. The operator shall comply with all conditions of this general permit. Any state permit noncompliance constitutes a violation of the Virginia Stormwater Management Act and the Clean Water Act, except that noncompliance with certain provisions of this general permit may constitute a violation of the Virginia Stormwater Management Act but not the Clean Water Act. Permit noncompliance is grounds for enforcement action; for state permit coverage, termination, revocation and reissuance, or modification; or denial of a state permit renewal application. The operator shall comply with effluent standards or prohibitions established under § 307(a) of the Clean Water Act for toxic pollutants within the time provided in the regulations that establish these standards or prohibitions or standards for sewage sludge use or disposal, even if this general permit has not yet been modified to incorporate the requirement. M. Duty to reapply. If the operator wishes to continue an activity regulated by this general permit after the expiration date of this general permit, the operator shall submit a new registration statement at least 60 days before the expiration date of the existing general permit, unless permission for a later date has been granted by the board. The board shall not grant permission for registration statements to be submitted later than the expiration date of the existing general permit. N. Effect of a state permit. This general permit does not convey any property rights in either real or personal property or any exclusive privileges, nor does it authorize any injury to private property or invasion of personal rights, or any infringement of federal, state or local law or regulations. O. State law. Nothing in this general permit shall be construed to preclude the institution of any legal action under, or relieve the operator from any responsibilities, liabilities, or penalties established pursuant to any other state law or regulation or under authority preserved by § 510 of the Clean Water Act. Except as provided in general permit conditions on "bypassing" (Part III U) and "upset' (Part III V), nothing in this general permit shall be construed to relieve the operator from civil and criminal penalties for noncompliance. P. Oil and hazardous substance liability. Nothing in this general permit shall be construed to preclude the institution of any legal action or relieve the operator from any responsibilities, liabilities, or penalties to which the operator is or may be subject under §§ 62.1-44.34:14 through 62.1-44.34:23 of the State Water Control Law or § 311 of the Clean Water Act. Q. Proper operation and maintenance. The operator shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances), which are installed or used by the operator to achieve compliance with the conditions of this general permit. Proper operation and maintenance also includes effective plant performance, adequate funding, adequate staffing, and adequate laboratory and process controls, including appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems, which are installed by the operator only when the operation is necessary to achieve compliance with the conditions of this general permit. R. Disposal of solids or sludges. Solids, sludges or other pollutants removed in the course of treatment or management of pollutants shall be disposed of in a manner so as to prevent any pollutant from such materials from entering surface waters and in compliance with all applicable state and federal laws and regulations. Page 24 of 26 S. Duty to mitigate. The operator shall take all steps to minimize or prevent any discharge in violation of this general permit that has a reasonable likelihood of adversely affecting human health or the environment. T. Need to halt or reduce activity not a defense. It shall not be a defense for an operator in an enforcement action that it would have been necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of this general permit. U. Bypass. 1. 'Bypass," as defined in 9VAC25-870-10, means the intentional diversion of waste streams from any portion of a treatment facility. The operator may allow any bypass to occur that does not cause effluent limitations to be exceeded, but only if it also is for essential maintenance to ensure efficient operation. These bypasses are not subject to the provisions of Part III U 2 and 3. 2. Notice. a. Anticipated bypass. If the operator knows in advance of the need for a bypass, the operator shall submit prior notice to the department, if possible at least 10 days before the date of the bypass. b. Unanticipated bypass. The operator shall submit notice of an unanticipated bypass as required in Part III I. 3. Prohibition of bypass. a. Except as provided in Part III U 1, bypass is prohibited, and the board or department may take enforcement action against an operator for bypass unless: (1) Bypass was unavoidable to prevent loss of life, personal injury, or severe property damage. Severe property damage means substantial physical damage to property, damage to the treatment facilities that causes them to become inoperable, or substantial and permanent loss of natural resources that can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused by delays in production; (2) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes, or maintenance during normal periods of equipment downtime. This condition is not satisfied if adequate back-up equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass that occurred during normal periods of equipment downtime or preventive maintenance; and (3) The operator submitted notices as required under Part III U 2. b. The department may approve an anticipated bypass, after considering its adverse effects, if the department determines that it will meet the three conditions listed in Part III U 3 a. Page 25 of 26 V. Upset. 1. An "upset," as defined in 9VAC25-870-10, means an exceptional incident in which there is unintentional and temporary noncompliance with technology -based state permit effluent limitations because of factors beyond the reasonable control of the operator. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation. 2. An upset constitutes an affirmative defense to an action brought for noncompliance with technology -based state permit effluent limitations if the requirements of Part III V 4 are met. A determination made during administrative review of claims that noncompliance was caused by upset, and before an action for noncompliance, is not a final administrative action subject to judicial review. 3. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventative maintenance, or careless or improper operation. 4. An operator who wishes to establish the affirmative defense of upset shall demonstrate, through properly signed, contemporaneous operating logs or other relevant evidence that: a. An upset occurred and that the operator can identify the cause of the upset; b. The permitted facility was at the time being properly operated; c. The operator submitted notice of the upset as required in Part III I; and d. The operator complied with any remedial measures required under Part III S. 5. In any enforcement proceeding, the operator seeking to establish the occurrence of an upset has the burden of proof. W. Inspection and entry. The operator shall allow the department as the board's designee, the VSMP authority, EPA, or an authorized representative of either entity (including an authorized contractor), upon presentation of credentials and other documents as may be required by law to: 1. Enter upon the operator's premises where a regulated facility or activity is located or conducted, or where records shall be kept under the conditions of this general permit; 2. Have access to and copy, at reasonable times, any records that shall be kept under the conditions of this general permit; 3. Inspect and photograph at reasonable times any facilities, equipment (including monitoring and control equipment), practices, or operations regulated or required under this general permit; and 4. Sample or monitor at reasonable times, for the purposes of ensuring state permit compliance or as otherwise authorized by the Clean Water Act or the Virginia Stormwater Management Act, any substances or parameters at any location. Page 26 of 26 For purposes of this section, the time for inspection shall be deemed reasonable during regular business hours, and whenever the facility is discharging. Nothing contained herein shall make an inspection unreasonable during an emergency. X. State permit actions. State permit coverage may be modified, revoked and reissued, or terminated for cause. The filing of a request by the operator for a state permit modification, revocation and reissuance, or termination, or a notification of planned changes or anticipated noncompliance does not stay any state permit condition. Y. Transfer of state permit coverage. 1. State permits are not transferable to any person except after notice to the department. Except as provided in Part III Y 2, a state permit may be transferred by the operator to a new operator only if the state permit has been modified or revoked and reissued, or a minor modification made, to identify the new operator and incorporate such other requirements as may be necessary under the Virginia Stormwater Management Act and the Clean Water Act. As an alternative to transfers under Part III Y 1, this state permit may be automatically transferred to a new operator if: a. The current operator notifies the department at least 30 days in advance of the proposed transfer of the title to the facility or property; b. The notice includes a written agreement between the existing and new operators containing a specific date for transfer of state permit responsibility, coverage, and liability between them; and c. The department does not notify the existing operator and the proposed new operator of its intent to modify or revoke and reissue the state permit. If this notice is not received, the transfer is effective on the date specified in the agreement mentioned in Part III Y 2 b. 3. For ongoing construction activity involving a change of operator, the new operator shall accept and maintain the existing SWPPP, or prepare and implement a new SWPPP prior to taking over operations at the site. Z. Severability. The provisions of this general permit are severable, and if any provision of this general permit or the application of any provision of this state permit to any circumstance, is held invalid, the application of such provision to other circumstances and the remainder of this general permit shall not be affected thereby. Section 12. Inspection logs (Provide templates for your inspections. Requirements are listed in 9VAC25-880-70, Part II, section B and F.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County VAR 10XXXX VPDES EROSION CONTROL INSPECTION FORM Project Name: New School/111222 Permittee: New School Public School Contractor: Location: New Town, Virginia Weather: WSSI #: XXXXX.XX XYZ Contracting Sunny, 70's Wetland '$udia and Solutions.l^r' + a 1=1142 company Date: 03/01/2017 Time: 1:00 PM Weekly Rainfall (in.): 0.75" Item# Inspection Questions N/A' YESz NO 1. Have all denuded areas requiring temporary or permanent stabilization been stabilized? ❑ ❑X ❑ 2 Have disposal/borrow and soil stockpiles (on -site and off -site) been stabilized with seeding and/or ❑ ❑X ❑ protected with sediment trapping measures? Are off -site areas included in the E&S plans? 3. Does permanent vegetation provide adequate stabilization for completed project areas? X❑ ❑ ❑ 4 Have perimeter controls been constructed as a first step in land disturbing activities (includes clearing OR ❑ X❑ ❑ grubbing)? 5' Are perimeter and other erosion and sediment control structures and systems being maintained, ❑ ❑ X❑ inspected and repaired to ensure functionality? 6. Have earthen structures, such as dams, dikes, and diversions, been immediately stabiliz ❑ X❑ ❑ 7. Have sediment basins and traps been constructed according to plans, specifications, and/or arcs? ❑ X❑ ❑ 8. Are finished cut and fill slopes adequately stabilized? X❑ ❑ ❑ 9 Is concentrated water flowing through adequate slope drains; fumes, or non-erodibl ann cut or ❑ X❑ ❑ fill slopes? 10. Do slope faces have drainage or protection from wate seeps? Ill X❑ ❑ ❑ 11. Do all operational storm sewer and culvert inlets have inlet prot tion in rdance with plans, ❑ ❑ X❑ specifications, and/or standards? 12. Are stormwater conveyance channels stabilized with channel lining and/or out protection? ❑ X❑ ❑ 13. Is in -stream construction conducted using measures to minimize channel dlimage? X❑ ❑ ❑ 14. Are temporary stream crossings of non -erodible material installed where construction equipment X❑ ❑ ❑ crosses? I 15. Are all DEQ water quality permit requirements being ache ? ❑ X❑ ❑ 16. Are material/equipment handling/storage areas clean anc1.{ree of spills, leaks, or other deleterious ❑ ❑ materials and argeated protective measures adequate. 17. Is re-stabilizatlu of in-strPann, rnnstriirtinn complete before leaving the area? X❑ ❑ ❑ 18. Are utility trenches stabilized p e ly according to the specifications? ❑ X❑ ❑ 19. Is effluent from dewatering oper ns being filtered (including in -stream structure dewatering)? ❑ X❑ ❑ 20 Are construction entrances adequa Vprotected, being maintained, and paved roadways kept clean from ❑ ❑ soil and mud? Ak 21 Have all temporary control st res that are no longer needed been removed and such areas been X❑ El Elstabilized? 22 Are properties and waterw ys adjacent to development adequately protected from pollutant discharge, ❑ X❑ ❑ erosion, flooding, and sedimentation? Has encroachment outside of the project limits been prevented? 23. When necessary, are dust control measures being properly implemented? X❑ ❑ ❑ 24. Have all deficiencies from previous reports been addressed? ❑ ❑X ❑ 1—N/A: not applicable; 2—YES: All items related to contract requirements, plans, specifications, standards, and permits are being satisfied If a box is checked 'NO' please we the attached sheet for issue of non-compliance and corrective action necessary to regain VPDES compliance. This report was written by Joe Inspector 03/01/2017 Print Name Signature Date Sheet 1 of 2 VAR 10XXXX Project Name: New School/111222 VPDES EROSION CONTROL INSPECTION FORM IrDf.$9Ei3�:EE1:1:A:1:1 Wetland 'rsadia and Solutions. t^s' a �# tympany Date: 03/01/2017 Item # (See sheet 1) Description of problem, location, and corrective action Date corrected/ Initials S Silt fence needs to be cleaned out and repaired when sediment reaches half the height of the barrier. 11 Inlet protection needs to be cleaned out and repaired when sediment reaches half the height of the barrier. 16 Concrete washout must be contained within an impervious area where it can cure and dry preventing wash from contaminating surrounding soil. 20 Sediment is being tracked onto roadway. Re -work construction entrance and sweep roadway as needed. * Continue to monitor and maintain all E&S controls for proper function. Ilk VSMP inspections occur every four business days, following the Commonwealth of Virginia holiday schedule. Weather Underground - Station Name (Station ID) - XXXft. Elev. I Lat., Long. Sheet 2 of 2 SWPPP Amendment & Modification Log Date Description of Amendment or Modification Responsible Party Signature per Part MK Operator or Delegated Authority --------------- Responsible Party--- -----�---------------------------------------------------------------- Signature per Part 111 K -------------------------------------------------------------------------------------------------------------------------------- Operator or Delegated Authority ------------ -- Res onsible Party ------------------------------------------------------------------------------------------------------------------------------- Signature per Part NK Operator or Delegated Authority Responsible Party --------------------------------------------------------------------------------------------------------------------------------- Signature per Part NK Operator or Delegated Authority Record of Land Disturbance The operator (or designee) shall update the SWPPP no later than seven dams following any modification to its implementation. All modifications or updates to the SWPPP shall be noted and shall include the following items: 1. A record of dates when: a. Major grading activities occur; b. Construction activities temporarily or permanently cease on a portion of the site; and c. Stabilization measures are initiated; 2. Documentation of replaced or modified controls that have been used inappropriately or incorrectly and where modified as soon as possible; 3. Areas that have reached final stabilization and where no further SWPPP or inspection requirements apply; 4. All properties that are no longer under the legal control of the operator, and dates of which operator no longer had legal control; 5. The date of any prohibited discharges, the discharge volume released, and what actions were taken to minimize the impact of the release; 6. Measures taken to prevent the reoccurrence of any prohibited discharge; and 7. Measures taken to address any evidence identified as a result of an inspection required under Part II F. By initialing a SWPPP modification below, you are making the certification found in Part III K of the Permit. Action and Location Start Date / End Date Initial Started mass clearing andgrading in Section I of site. 711114- 1011114 XG Installedperimetercontrofs in Sections 1-5. 711114 XG Started mass clearing andgrading in Section 3 of site. 8113 4 XG InstalfedSediment Basin #1 8/3/14 Construction activity done in Section 1— temporary stahi(wed N further inspections needed 4 IT Temporarify stabilimedstockpile in M corner of site. 2/14 DrF Section 7 of project transferred legal control o . 1 1 10115114 �f fpfacedconcretewashout near site a r. 11128114 �f Instalfedperimetercontrofs ect -5 1112115 JG Record of Land Disturbance The operator (or designee) shall update the SWPPP no later than seven days following any modification to its implementation. All modifications or updates to the SWPPP shall be noted and shall include the following items: 1. A record of dates when: a. Major grading activities occur; b. Construction activities temporarily or permanently cease on a portion of the site; and c. Stabilization measures are initiated; 2. Documentation of replaced or modified controls that have been used inappropriately or incorrectly and where modified as soon as possible; 3. Areas that have reached final stabilization and where no further SWPPP or inspection requirements apply; 4. All properties that are no longer under the legal control of the operator, and dates of which operator no longer had legal control; 5. The date of any prohibited discharges, the discharge volume released, and what actions were taken to minimize the impact of the release; 6. Measures taken to prevent the reoccurrence of any prohibited discharge; and 7. Measures taken to address any evidence identified as a result of an inspection required under Part II F. By initialing a SWPPP modification below, you are making the certification found in Part III K of the Permit. Action and Location Start Date / Initials End Date Action and Location Start Date/ Initial End Date