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HomeMy WebLinkAboutWPO202000017 VSMP - SWPPP 2020-07-20Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: Project Name: Profit Road Townhomes South Location: 3226 Profit Road Charlottesville, VA 22911 Prepared by: Shimp Engineering P.C. Prepared for: Albemarle Land Development LLC SWPPP Preparation Date: 07/17/2020 (This document is to be made publicly available according to 9VAC25-880-70, Part II, section D) CONTENTS: 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 Section 1. Registration statement VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION ACTIVITIES (VAR10) REGISTRATION STATEMENT 2019 NEW ISSUANCE41 MODIFICATION WITH ACREAGE INCREASE ❑ Existing Permit Coverage Number (if applicable, VAR10####): Section I. Operator/Permittee Information. RE -ISSUANCE ❑ FOR OFFICE USE ONLY ID Number: MODIFICATION WITHOUT ACREAGE INCREASE ❑ 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 VI. (per Part Ill. K. of the VAR10 Permit). Construction Activity Operator Name: �kmAl t gn0��.C-- Contact person: Scrly) - 1 Address: S' Cka q City, State, Zip Code: C /}rl0�6sVi jl< Phone Number: ��3� - C" Primary Email: rinI/b61Uy ((1CX301�}L . Co CC Email: 8. Billing Information (leave blank if same as the Operator identified in Section 1. 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 order to pay by credit card and to receive your permit coverage approval letter via email: YES X NO ❑ Rev 04/2019 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. P B. Construction Activity Name: DU., (^ f 041 I6WA k-a t sO Address: -S296 Pjra2gt - f1bli City and/or County and Zip Code: Latitude and Longitude (6-digit, decimal degrees format): C. Construction Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): -g. ►3113 2 ; -7 Y. 43162D 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. Mite Activity Name: 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): 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 3 • 3y Management Plan): Primary estimated area to be disturbed (portions with 3.3 Erosion and Sediment Control Plan approval only): Offsite estimated area to be disturbed (if applicable): C. Property Owner Status: D. Nature of the Construction Activity Description (i.e. commercial, industrial, residential, agricultural, environmental): E. Municipal Separate Storm Sewer System (M54) name (if discharging to a MS4): B. Estimated Project Dates (MM/DD/YYYY) Start date: OV01 /2020 Completion date: 0110((200f FEDERAL ❑ STATE ❑ PUBLIC ❑ PRIVATE C9 2S,�tn��gQ Rev 04/2019 PAGE 2 17 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 F. Is this construction activity part of a common plan of development or sale? YES ❑ NO)< G. 61' Order Hydrologic Unit Code (HUC) and Receiving Water Name(s). Attach a separate list if needed. HUC RECEIVING WATERBODY(S) 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 W NO ❑ Erosion and Sediment Control Plan Approval Date (for estimated area to be disturbed).: C. Has land disturbance has commenced? YES Cl NO 1, 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.): SEE THE FOLLOWING PAGE FOR SIGNATURE AND CERTIFICATION REQUIREMENTS AND INFORMATION Rev 04/2019 PAGE 3 1 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. Para 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 ony facility or activity subject to the Act and this chapter. !n the context of stormwater 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 (ii) 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 octivities required by the stormwater pollution prevention plan or comply with other permit conditions). In the context of stormwater discharges from Municipal Separate Storm Sewer Systems (MS4s), operator means the operator of the regulated MS4 system. 9VAC25-880-70. Part lil. 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: (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 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 im Printed Name: Signature (signed in ink): Date: nmer�t for knowing violations." 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 Authority, please send to: Department of Environmental Quality Office of Stormwater Management Suite 1400 PO Box 1105 Richmond VA 23218 constructionw0cleq.virgin ia.Aov If the locality is the VSMP Authority, please send to. The Local VSMP Authority (insert address below Rev 04/2019 PAGE 4 1 7 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.) Section 3. Nature of activity This project proposes 40 single family attached units on the southern side of Proffit Road in Albemarle County. The single family residence currently on site is to be removed. The total area of disturbance is 3.34 acres. The following are the proposed management strategies and detailed sequence of construction: PHASE 1 1. Install construction entrance. 2. Install sediment trap with silt fence and diversions. 3. Place fill around sediment trap to complete trap construction before any major grading occurs on site. 4. Contact County inspector for approval of field conditions. 5. Begin mass grading. 6. Maintain perimeter controls. PHASE 2 1. Install additional sewer mains and waterline. 2. Install storm piping and inlets, but keep all inlets except A10 blocked off until road is stabilized. Install inlet protection around A10. 3. Connect pipes A6 and A7 with a matted channel where future detention pipes will be installed. Place silt fence around channel. 4. Stabilize road with stone and place inlet protection on remaining inlets. 5. Once road is stabilized, remove sediment trap & diversion and finish construction on lots 22-26. PHASE 3 1. Inlet protection to remain until all work onsite is complete. 2. Apply permanent seeding. 3. When site is stabilized, install StormTech chambers with the guidance of an ADS representative. 4. Call for final inspections. FINAL 1. Maintain erosion controls until site is stabilized and County inspector has approved removal of controls. Section 4. Erosion and Sediment Control Plan. VSMP PLAN LEGEND EXISTING NEW DESCRIPTION boundaries BENCHMARK SITE PROPERTY LINE ADJACENT PROPERTY LINE VACANT PROPERTY LINE BUILDING SETBACK PARKING SETBACK ACCESS EASEMENT site text NOTES 10 10 PARKING COUNT �2400 DIMENSIONS ground GRADING EASEMENT 31 C, 10- INDEX CONTOUR 12 INTERVAL CONTOUR 311.5 x 81 57 X SPOT ELEVATION 311.5 TC 81 TC 5 ] X TOP OF CURB ELEVATION 11.5 TW 81 TW 5 ] X TOP OF WALL ELEVATION Y JI I .INN X 81 BW 5 7 X BOTTOM OF WALL ELEVATION RETAINING WALL STAIRS building BUILDING ROAD -EDGE OF PAVEMENT ROAD- CENTERLINE ROAD -FRONT OF CURB ROAD BACK OF CURB CG-2 STANDARD 6" CURB CG-6 STANDARD 6" CURB AND GUTTER /FN /FN CG-12 STANDARD ACCESS RAMP SIDEWALK BIKE PARKING PARKING SURFACE - CROSSWALK HANDICAP ACCESSIBLE AISLE HANDICAP PARKING material 0 CONCRETE/PAVEMENT-SIDEWALK RIPRAP ASPHALT 0 GRASS EC-3 MATTING EC-2 MATTING WETLAND TREELINE - x x - - x x - FENCE STREAM utility UTILITY EASEMENT ♦ t UTILITY POLE ® ® LIGHT POLE -oeu OHu - -OHU oHD OVERHEAD UTILITY O MANHOLE sanitary & sewer STORM LINE Ct­ RD RD - ROOF DRAIN �C (D =Lbl DRAIN INLET DRAINAGE EASEMENT STORM DRAINAGE EASEMENT STORM SEWER EASEMENT SANITARY LINE - s s - s s - SANITARY LATERAL SANITARY EASEMENT water - w w- - w w- WATER LINE 0 0 WATER METER WATER VALVE AND BOX 4- FIRE HYDRANT WATER EASEMENT gas -ens -ens - -crs -was GAS LINE PROFFIT ROAD TOWNHOMES SOUTH OWNER/DEVELOPER Albemarle Land Development LLC 1949 Northside Drive Charlottesville, VA 22911 ZONING R15 - Residential per ZMA 201800019 SETBACKS Front: Minimum 5 ft from right-of-way or edge of sidewalk if the sidewalk is outside of right-of-way Maximum 25 ft from right-of-way or edge of sidewalk if the sidewalk is outside of right-of-way Side: Minimum 5 ft, unless the building shares a common wall Rear: Minimum 20 ft Building Separation: Minimum 10 ft, unless the building shares a common wall DISTRICT Rivanna SOURCE OF TITLE DB 5160 PG 296 DB 512 PG 516 PLAT SOURCE OF BOUNDARY AND TOPOGRAPHY Boundary & topographic survey provided by: Roger W. Ray & Associates, Inc. (April 15, 2019) w/ topography provided by Axis Geospatial, LLC (March 14, 2019) The site has been field verified by Justin Shimp P.E. on June 4th 2020. BENCHMARK Datum for topography is NAVD 88 FLOODZONE According to the FEMA Flood Insurance Rate Map, effective February 4, 2005 (Community Panel 51003CO285D) this property does not lie in a fioodplain RESERVOIR WATERSHED This site is within the Powell Creek Watershed. This site is not within a watershed of a public water supply. WATER & SANITARY SERVICES Site is served by Albemarle County Service Authority. COUNTY OF ALBEMARLE reparimem of community Development Construction Record Drawings (As -built) for VSNW The following is a fist 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 ccrostructcxl location of all items associated with each facility, and die inspection records to verify proper dimensions, materials and installation. The items include, but are not limited to the following: I. 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 he 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 scaled 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 casements. 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 dams. 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. EXISTING USE Single Family Dwelling PROPOSED USE 40 Single Family Attached Dwelling Units, 13.6 DUA LAND USE SCHEDULE (Does not include right-of-way dedication area) EXISTING Area % Building 2,458 SF 25.3% Travelway 7,244 SF SF 74.7% Impervious Total 9,702 SF 7.6% Open space 118,416 SF 92.4% Total= 128,118 SF (2.94 ac.) PROPOSED Area % Building 33,000 SF 43.2% Travelway 43,401 SF 56.8% Impervious Total 76,401 SF 59.6% Open space 51,717 SF 40.4% Total= 128,118 SF (2.94 ac.) LIMITS OF DISTURBANCE 3.34 acres of disturbance is planned for this development WP0202000017 TAX MAP 32, PARCEL 35 ALBEMARLE COUNTY, VIRGINIA VICINITY MAPSCALE : 1rr=1000' Ad AIRPORT CENTER 9�rp nrrAd N� ii e C1 Airport Road Auto Center 's 5 DEERWOOD S Q SITE Walgreens 0 a,Gnrt S P R I N G F I E L D R,r ABINGTON The. UPS Store 0 P L A C E Target 0 ec�c Food Lion `' FOREST RIDGE TirnbeiworidGrill A 1521 FOREST LAKES a3, Map provided by Google.com SHEETINDEX C1 COVER C2 E&SC NARRATIVE C3 EXISTING CONDITIONS C4 GRADING & UTILITY PLAN C5 E&SC PLAN PH1 C6 E&SC PLAN PH2 C7 E&SC PLAN PH3 C8 E&SC DETAILS C9 PROFILES C10 DETAILS C11 PRE -DEVELOPMENT DRAINAGE C12 POST -DEVELOPMENT DRAINAGE J SHIMP ENGINEERING LAND PLANNING I SITE DESIGN I CIVIL ENGINEERING I PROJECT MANAGEMENT Design Focused Engineering 912 East High Street Phone: 434-227-5140 Charlottesville, VA 22902 shim"ngineedng.mm SHI Lie. o.451 �SStONAL �__f VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.20 REVISION: 01) 2020.07.16 FILE NO. COVER 18.041 SHEET C1 OF 12 C1 PROJECT DESCRIPTION, GENERAL NOTES, EROSION & SEDIMENT CONTROL NOTES, AND SEQUENCE OF CONSTRUCTION PROJECT DESCRIPTION THIS PROJECT PROPOSES 40 SINGLE FAMILY ATTACHED UNITS ON THE SOUTHERN SIDE OF PROFFIT ROAD IN ALBEMARLE COUNTY. THE SINGLE FAMILY RESIDENCE CURRENTLY ON SITE IS TO BE REMOVED. THE TOTAL AREA OF DISTURBANCE IS 3.34 ACRES. THE PROJECT INVOLVES THE FOLLOWING WORK ACTIVITIES: 1. THE CONTRACTOR SHALL OBTAIN ALL LOCAL AND STATE EROSION AND SEDIMENT PERMITTING REQUIREMENTS AND MAINTAIN ALL EROSION AND SEDIMENT CONTROLS IN ACCORDANCE WITH THE PERMIT REQUIREMENTS. 2. INSTALLATION OF PERMANENT EROSION AND SEDIMENT CONTROL MEASURES AS SHOWN ON THE PLAN AND DETAILS. 3. GRADING AND PLACEMENT OF FILL SHALL BE IN GENERAL ACCORDANCE WITH THE PLAN. 4. ESTABLISHMENT OF PERMANENT STABILIZATION OF ALL DISTURBED AREAS. ADJACENT PROPERTIES THIS PROPERTY IS BORDERED ON THE NORTH BY PROFFIT RD; THE EAST/SOUTH BY MAPLE GROVE CHRISTIAN CHURCH; AND TO THE WEST/SOUTH BY BRIGHT BEGINNINGS PRESCHOOL. OFFSITE AREAS SOIL MAY NEED TO BE IMPORTED FROM THE SITE FROM SITES WHICH SHALL HAVE EROSION CONTROL PERMITS. SOILS THE SITE CONTAINS THE FOLLOWING SOIL TYPES: 27B - ELIOAK LOAM - 2 TO 7% SLOPES, HSG B CRITICAL AREAS THERE ARE NO CRITICAL AREAS ON SITE. EROSION & SEDIMENT CONTROLS 1. SAFETY FENCE: A PROTECTIVE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL MEASURE. STD. AND SPEC. 3.01. 2. CONSTRUCTION ENTRANCE: INSTALL AND MAINTAIN A CONSTRUCTION ENTRANCE, AS NECESSARY, THAT MEETS THE REQUIREMENTS OF STD. AND SPEC. 3.02 AND CONFORMS WITH THE REQUIREMENTS OF THE EROSION & SEDIMENT CONTROL PLAN. 3. SILT FENCE: INSTALL AND MAINTAIN SILT FENCE THAT MEETS THE REQUIREMENTS OF STD. AND SPEC. 3.05. THIS SILT FENCE SHALL BE INSTALLED AS SHOWN ON THE EROSION & SEDIMENT CONTROL PLAN AND ACCOMPANYING DETAILS FOR THE PURPOSE OF INTERCEPTING SILT -LADEN RUNOFF BEFORE IT IS DISCHARGED FROM THE SITE. THE SILT FENCE SHALL BE INSPECTED AND MAINTAINED TO ENSURE CONTINUED PERFORMANCE. 4. TEMPORARY SEDIMENT TRAP: A SMALL PONDING AREA, FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A STONE OUTLET ACROSS A DRAINAGE SWALE, TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS FOR ENOUGH TIME TO ALLOW MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS. STD. AND SPEC. 3.13. 5. TEMPORARY DIVERSION DIKE: A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA WHICH DIVERTS SEDIMENT -LADEN RUNOFF TO A SEDIMENT TRAPPING STRUCTURE. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS. STD. AND SPEC. 3.09. 6. TEMPORARY SEEDING: TEMPORARY SEEDING SHALL BE APPLIED TO ALL DENUDED AREAS WITHIN SEVEN (7) DAYS TO DENUDED AREAS THAT MAY OR MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. TEMPORARY SEEDING SHALL BE APPLIED IN CONFORMANCE WITH STD. AND SPEC. 3.31. 7. PERMANENT SEEDING: PERMANENT SEEDING SHALL BE APPLIED TO AREAS DELINEATED ON THESE PLANS WITHIN SEVEN (7) DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. PERMANENT SEEDING STABILIZES DISTURBED AREAS AND ENHANCES THE BEAUTY OF THE SITE. 8. MULCHING: APPLICATION OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE TO PREVENT EROSION AND FOSTER THE GROWTH OF VEGETATION. ORGANIC MULCHES (STRAW) HAVE BEEN FOUND TO BE THE MOST EFFECTIVE. 9. DUST CONTROL: CONDUCT DUST CONTROL OPERATIONS NECESSARY TO MET THE REQUIREMENTS OF STD. & SPEC. 3.39 AS REQUIRED TO CONTROL SURFACE AND AIRBORNE MOVEMENT OF DUST. 10.INLET PROTECTION: INLET PROTECTION MEASURES AROUNF THE NEW INLETS SHALL BE PROVIDED IN ACCORDANCE WITH STD. AND SPEC. 3.07. SILT FENCE, STRAW BALES OR TEMPORARY STONE APPLICATIONS SHALL BE APPLIED AS APPROPRIATE FOR CURRENT GRADE CONDITIONS. 11.0UTLET PROTECTION: RIP -RAP SHALL BE PROVIDED AT THE OUTFALL OF CONVEYANCE CHANNELS, CULVERTS, AND STORM SEWERS IN CONFORMANCE WITH STD. AND SPEC. 3.18. OUTLET PROTECTION SHALL BE INSTALLED WITH ACCOMPANYING STORM SEWERS AND SHALL BE INSPECTED AFTER EACH RAINFALL EVENT AND REPAIRED IF NECESSARY, ANT SEDIMENT BUILD UP SHALL BE REMOVED. 12.CONSTRUCTION ROAD STABILIZATION: TEMPORARY STABILIZATION WITH STONE OF ACCESS ROADS, SUBDIVISION STREETS, PARKING AREAS, AND OTHER TRAFFIC AREAS IMMEDIATELY AFTER GRADING TO REDUCE EROSION CAUSED BY VEHICLES DURING WET WEATHER, AND TO PREVENT HAVING TO REGRADE PERMANENT ROADBEDS BETWEEN INITIAL GRADING AND FINAL STABILIZATION. STD. AND SPEC. 3.03. 13.STORMWATER CONVEYANCE CHANNEL: A PERMANENT CHANNEL DESIGNED TO CARRY CONCENTRATED FLOWS WITHOUT EROSION. APPLICABLE TO MAN-MADE CHANNELS, INCLUDING ROADSIDE DITCHES, AND NATURAL CHANNELS THAT ARE MODIFIED TO ACCOMMODATE INCREASED FLOWS GENERATED BY LAND DEVELOPMENT; NOT GENERALLY APPLICABLE TO MAJOR, CONTINUOUS -FLOWING NATURAL STREAMS. STD. AND SPEC. 3.17. PERMANENT STABILIZATION AND SEQUENCE OF CONSTRUCTION THE FOLLOWING ARE THE PROPOSED MANAGEMENT STRATEGIES AND DETAILED SEQUENCE OF CONSTRUCTION: PHASE 1 1. INSTALL CONSTRUCTION ENTRANCE. 2. INSTALL SEDIMENT TRAP WITH SILT FENCE AND DIVERSIONS. 3. PLACE FILL AROUND SEDIMENT TRAP TO COMPLETE TRAP CONSTRUCTION BEFORE ANY MAJOR GRADING OCCURS ON SITE. 4. CONTACT COUNTY INSPECTOR FOR APPROVAL OF FIELD CONDITIONS. 5. BEGIN MASS GRADING. 6. MAINTAIN PERIMETER CONTROLS. PHASE 2 1. INSTALL ADDITIONAL SEWER MAINS AND WATERLINE. 2. INSTALL STORM PIPING AND INLETS, BUT KEEP ALL INLETS EXCEPT A10 BLOCKED OFF UNTIL ROAD IS STABILIZED. INSTALL INLET PROTECTION AROUND Al0. 3. CONNECT PIPES A6 AND A7 WITH A MATTED CHANNEL WHERE FUTURE DETENTION PIPES WILL BE INSTALLED. PLACE SILT FENCE AROUND CHANNEL. 4. STABILIZE ROAD WITH STONE AND PLACE INLET PROTECTION ON REMAINING INLETS. 5. ONCE ROAD IS STABILIZED, REMOVE SEDIMENT TRAP & DIVERSION AND FINISH CONSTRUCTION ON LOTS 22-26. PHASE 3 1. INLET PROTECTION TO REMAIN UNTIL ALL WORK ONSITE IS COMPLETE. 2. APPLY PERMANENT SEEDING. 3. WHEN SITE IS STABILIZED, INSTALL STORMTECH CHAMBERS WITH THE GUIDANCE OF AN ADS REPRESENTATIVE. 4. CALL FOR FINAL INSPECTIONS. FINAL 1. MAINTAIN EROSION CONTROLS UNTIL SITE IS STABILIZED AND COUNTY INSPECTOR HAS APPROVED REMOVAL OF CONTROLS. CONSTRUCTION MAINTENANCE THE FOLLOWING CONSTRUCTION MAINTENANCE PRACTICES SHALL BE FOLLOWED AT THE SITE. 1. ALL E&S CONTROL MEASURES WILL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAIN EVENT. ALL DEFICIENCIES IDENTIFIED DURING THESE INSPECTIONS SHALL BE CORRECTED AS SOON AS PRACTICABLE, 2. THE SILT FENCE BARRIER SHALL BE REGULARLY CHECKED FOR UNDERMINING, DETERIORATION OR SIGNIFICANT EROSION. SEDIMENT SHALL BE REMOVED AFTER EACH STORM EVENT AND WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHES HALF THE HEIGHT OF THE CONTROL. 3. THE CONTRACTOR IS RESPONSIBLE FOR ADHERING TO ALL MAINTENANCE REQUIREMENTS SET FORTH IN THE CURRENT EDITION OF THE VIRGINIA SEDIMENT AND EROSION CONTROL MANUAL, OTHER APPLICABLE COMMONWEALTH OF VIRGINIA REGULATIONS AND THE PROJECT SPECIFICATIONS. 4. ALL SEEDED AREAS WILL BE REGULARLY CHECKED TO ENSURE THAT A GOOD STAND OF GRASS IS MAINTAINED. 5. AREAS WITH RIP -RAP SHOULD BE REGULARLY INSPECTED TO DETERMINE IF HIGH FLOWS HAVE DAMAGED THESE CONTROLS OR CAUSED EXCESSIVE SEDIMENT DEPOSITION. ALL AREAS SHALL BE MAINTAINED IN ACCORDANCE WITH THE REQUIREMENTS OF THIS E&S CONTROL PLAN. ENVIRONMENTAL CONTROLS 1. CONTRACTOR SHALL PROVIDE AND MAINTAIN ALL ENVIRONMENTAL CONTROL MEASURES SO AS TO COMPLY WITH LOCAL ORDINANCES, STATE AND FEDERAL LAWS AND REGULATIONS APPLICABLE TO WATER POLLUTION IN WATERS OF THE STATE AND IN INTERSTATE WATERS. 2. CONTRACTOR SHALL MINIMIZE THE POTENTIAL FOR AIR POLLUTION BY THE USE OF EMISSION CONTROL EQUIPMENT ON CONTRACTOR OPERATED EQUIPMENT, SHUT -DOWN OF MOTORIZED EQUIPMENT WHEN NOT IN USE, AND ACTIVELY CONTROLLING DUST EMISSIONS THROUGHOUT THE PROJECT. EROSION & SEDIMENT CONTROL PERMITTING CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL LOCAL AND STATE EROSION AND SEDIMENT CONTROL PERMITS AND MAINTAINING ALL EROSION AND SEDIMENT CONTROLS IN ACCORDANCE WITH THE PERMIT REQUIREMENTS. GENERAL NOTES 1. THE INFORMATION AND DATA SHOWN OR INDICATED WITH RESPECT TO THE EXISTING UNDERGROUND UTILITIES AT OR CONTIGUOUS TO THE SITE ARE BASED ON INFORMATION AND DATA FURNISHED TO THE OWNER AND ENGINEER BY THE OWNERS OF SUCH UNDERGROUND FACILITIES OR OTHERS. THE OWNER OR ENGINEER SHALL NOT BE RESPONSIBLE FOR THE ACCURACY OR COMPLETENESS OF SUCH INFORMATION OR DATA. THE CONTRACTOR SHALL HAVE FULL RESPONSIBILITY FOR CONFIRMING THE ACCURACY OF THE DATA, FOR LOCATING ALL UNDERGROUND UTILITIES, FOR COORDINATION OF THE WORK WITH OWNERS OF SUCH UNDERGROUND UTILITIES DURING CONSTRUCTION, FOR THE SAFETY AND PROTECTION THEREOF AND REPAIRING ANY DAMAGE THERETO RESULTING FROM THE WORK. ALL OF THESE CONDITIONS SHALL BE MET AT NO ADDITIONAL COST TO THE OWNER. THE CONTRACTOR SHALL CONTACT "MISS UTILITIES" OF VIRGINIA AT 1-800-552-7001 PRIOR TO THE START OF WORK. 2. WHEN WORKING ADJACENT TO EXISTING STRUCTURES, POLES, UTILITIES, ETC., THE CONTRACTOR SHALL USE WHATEVER METHODS THAT ARE NECESSARY TO PROTECT STRUCTURES FROM DAMAGE. ANY DAMAGE CAUSED BY THE CONTRACTOR OR ITS SUBCONTRACTORS SHALL BE THE CONTRACTOR'S SOLE RESPONSIBILITY TO REPAIR OR REPLACE. THIS EXPENSE IS THE CONTRACTOR'S RESPONSIBILITY. 3. REPLACEMENT OR REPAIR OF DAMAGED STRUCTURES SHALL BE AT THE CONTRACTOR'S EXPENSE. 4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROTECTING ALL EXISTING SITE STRUCTURES FROM DAMAGE AND COORDINATING WORK SO THAT THE OWNER CAN MAKE NECESSARY ARRANGEMENTS TO MODIFY/PROTECT EXISTING STRUCTURES FROM DAMAGES, 5. THE CONTRACTOR SHALL BE RESPONSIBLE FOR NOTIFYING ALL UTILITY OWNERS, ADJACENT LAND OWNERS WHOSE PROPERTY MAY BE IMPACTED AND THE VIRGINIA DEPARTMENT OF TRANSPORTATION PRIOR TO COMPLETING ANY OFF -SITE WORK. 6. CONTRACTOR SHALL NOTIFY AND COORDINATE ALL WORK INVOLVING EXISTING UTILITIES WITH UTILITY OWNERS, AT LEAST 72 HOURS PRIOR TO THE START OF CONSTRUCTION, 7. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY (29 CFR PART 1926). 8. THE CONTRACTOR SHALL VERIFY THE LOCATIONS OF ALL BOUNDARIES, BUILDINGS, VEGETATION, AND OTHER PERTINENT SITE ELEMENTS. CONTRACTOR SHALL IMMEDIATELY REPORT ANY DISCREPANCIES BETWEEN EXISTING CONDITIONS AND CONTRACT DOCUMENTS TO THE OWNER AND ENGINEER. 9. CONTRACTOR SHALL SUBMIT FOR THE APPROVAL OF THE OWNER SUBMITTALS OF ALL SPECIFIED MATERIALS LISTED IN THE PLANS, TO INCLUDE SHOP DRAWINGS, MANUFACTURER'S SPECIFICATIONS AND LABORATORY REPORTS. THE OWNER'S APPROVAL OF SUBMITTALS WILL BE GENERAL AND WILL NOT RELIEVE THE CONTRACTOR FROM THE RESPONSIBILITY OF ADHERENCE TO THE CONTRACT AND FOR ANY ERROR THAT MAY EXIST. 10. CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL NECESSARY PERMITS, INSPECTIONS, BONDS, AND OTHER RELATED ITEMS IN ACCORDANCE WITH LOCAL AND STATE POLICY. STORMWATER MANAGEMENT NOTES: 1. CONCENTRATED ONSITE RUNOFF SHALL BE ROUTED VIA NEW STORM DRAINS INTO AN UNDERGROUND DETENTION SYSTEM WHICH WILL RELEASE RUNOFF AT RATES WHICH COMPLY WITH THE ENERGY BALANCE EQUATION 9VAC25-870-66-B(3). 2. WATER QUALITY WILL BE ADDRESSED BY THE USE OF STORMTECH MC-4500 CHAMBERS WITH AN ISOLATOR ROW TO ACHIEVE 40% PHOSPHOROUS REMOVAL AND BY THE PURCHASE OF NUTRIENT CREDITS. AN AMOUNT FOR 1.37 LBS/YR PHOSPHOROUS CREDITS SHALL BE PURCHASED TO MEET THE VRRM REDEVELOPMENT NUTRIENT REMOVAL REQUIREMENTS PER 9VAC25-870-63. 3. BMP COORDINATES: • STORMTECH MC-4500: 38.1306874,-78.4315852 STORMTECH INSPECTION & MAINTENANCE NOTES: INSPECT EVERY 6 MONTHS DURING THE FIRST YEAR OF OPERATION. ADJUST THE INSPECTION INTERVAL BASED ON PREVIOUS OBSERVATIONS OF SEDIMENT ACCUMULATION AND HIGH WATER ELEVATIONS. CONDUCT JETTING AND VACTORING ANNUALLY OR WHEN INSPECTION SHOWS THAT MAINTENANCE IS NECESSARY. 1. INSPECT ISOLATOR ROW FOR SEDIMENT 1.1. REMOVE COVER FROM STRUCTURE AT UPSTREAM END OF ISOLATOR ROW 1.2. USING A FLASHLIGHT, INSPECT DOWN THE ISOLATOR ROW THROUGH OUTLET PIPE 1.2.1. MIRRORS ON POLES OR CAMERAS MAY BE USED TO AVOID A CONFINED SPACE ENTRY 1.2.2. FOLLOW OSHA REGULATIONS FOR CONFINED SPACE ENTRY IF ENTERING MANHOLE 1.3. IF SEDIMENT IS AT, OR ABOVE, 3" PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3. 2. CLEAN OUT ISOLATOR ROW USING THE JETVAC PROCESS 1.1 A FIXED CULVERT CLEANING NOZZLE WITH REAR FACING SPREAD OF 45" OR MORE IS PREFERRED 1.2 APPLY MULTIPLE PASSES OF JETVAC UNTIL BACKFLUSH WATER IS CLEAN 1.3 VACUUM STRUCTURE SUMP AS REQUIRED 3. REPLACE ALL COVERS, GRATES, FILTERS, AND LIDS; RECORD OBSERVATIONS AND ACTIONS. 3. INSPECT AND CLEAN BASINS AND MANHOLES UPSTREAM OF THE STORMTECH SYSTEM. MINIMUM STANDARDS (MS) All applicable Virginia Erosion and Sediment Control Regulations and Minimum Standards shall be adhered to during all phases of construction. These include, but are not limited to the following: 1. STABLIZATION OF DENUDED AREAS: Permanent or temporary soil stabilization shall be applied to bare 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 or undisturbed for longer than 14 days. Permanent stabilization shall be applied at areas that are to be left dormant for more than 1 year. 2. STABILIZATION OF SOIL STOCKPILES: During construction of the project, soil stockpiles shall be stabilized or protected with sediment trapping measures. The applicant is responsible for temporary protection and permanent stabilization of all soil stockpiles on site as well as soil intentionally transported from the project site. 3.PERMANENT VEGETATIVE COVER A permanent vegetative cover shall be established on denuded areas not otherwise permanently stabilized. Permanent vegetation shall not be considered established until a ground cover is achieve that, in the opinion of the county Inspector, is uniform and mature enough to survive to inhibit erosion. 4. TIMING & STABILIZATION OF SILT TRAPPING MEASURES: Sediment basins and traps, perimeter dikes, sediment barriers and other measures intended to trap sediment shall be constructed as a first step in any land disturbing activity and shall be made functional before upslope land disturbance takes place. 5. STABILIZATION OF EARTHEN STRUCTURES: Stabilization measures shall be applied to earthen structures such as dams, dikes and diversions immediately after installation. 6.SEDIMENT TRAPS AND BASINS: A sediment basin shall control surface runoff from disturbed areas that is comprised of flow from drainage areas greater than or equal to three acres. The sediment basin shall be designed and constructed to accommodate the anticipated sediment loading for the land disturbing activity. The outfall device or system device shall take into account the total drainage area flowing through the disturbed area to be served by the basin. 7.CUT AND FILL SLOPES: Cut and fill slopes shall be designed and constructed in a manner that will minimize erosion. Slopes that are found to be eroding excessively within one year of permanent stabilization shall be provided with additional slope stabilizing measures until the problem is corrected. & CONCENTRATED RUN-OFF DOWN CUT OR FILL SLOPES: Concentrated runoff shall not flow down cut or fill slopes unless contained within an adequate temporary or permanent channel, flume, or slope drain structure. 9.WATER SEEPS FROM A SLOPE FACE: Whenever water seeps from a slope face, adequate drainage or other protection shall be provided. 10. STORM SEWER INLET PROTECTION: All storm sewer inlets that are made operable during construction shall be protected so that sediment -laden water cannot enter the conveyance system without first being filtered or otherwise treated to remove sediment. 11. STABILIZATION OF OUTLETS: Before newly constructed stormwater conveyance channels are made operational, adequate outlet protection and any required temporary or permanent channel lining shall be installed in both the conveyance channel and receiving channel. 12. WORK IN LIVE WATERCOURSES: When work in a live watercourse is performed, precautions shall be taken to minimize encroachment, control sediment transport and stabilize the work area to the greatest extent possible during construction. Nonerodible material shall be used for the construction of causeways and cofferdams. Earthen fill may be used for these structures if armored by nonerodible cover materials. 13. CROSSING A LIVE WATERCOURSE: When a live watercourse must be crossed by construction vehicles more than twice in any six month period, a temporary stream crossing constructed of nonerodible materials shall be provided. 14. APPLICABLE REGULATIONS: All applicable federal, state and local regulations pertaining to working in or crossing live watercourses shall be met. 15. STABILIZATION OF BED AND BANKS The bed and banks of a watercourse shall be stabilized immediately after work in the watercourse is completed. 16. UNDERGROUND UTILITIES: Underground utilities shall be installed in accordance with the following standards in addition to other criteria: a.No more than 500 linear feet of trench may be opened at one time. b.Excavated material shall be placed on the uphill side of trenches c.Effluent for dewatering operations shall be filtered or passed through approved sediment trapping device, or both, and discharged in a manner that does not adversely affect flowing streams or offsite property. d.Material used for backfilling trenches shall be properly compacted in order to minimize erosion and promote stabilization. e.Restabilization shall be accomplished in accordance with these regulations. f. Applicable safety regulations shall be complied with. 17. CONSTRUCTION ACCESS ROUTES: Where construction vehicle access routes intersect paved public roads, provisions shall be made to minimize the transport of sediment by vehicular tracking onto paved surfaces. Where sediment is transported on to a public road surface, the road shall be cleaned thoroughly at the end of each day. Sediment shall be removed by shoveling or sweeping and transported to a sediment control disposal area. Street washing shall be allowed only after sediment is removed in this manner. This provision shall apply to individual lots as well as to larger land disturbing activities. 18.TEMPORARY E&S CONTROL MEASURE REMOVAL: All temporary erosion and sediment control measures shall be removed within 30 days after final site stabilization or after temporary measures are no longer needed, unless otherwise authorized by the local program authority. Trapped sediment and the disturbed soil areas resulting from the disposition of temporary measures shall be permanently stabilized to prevent further erosion and sediment. 19.ADEQUACY OF RECEIVING CHANNELS: Properties and waterways downstream from the development site shall be protected from sediment deposition, erosion and damage, due to increases in volume, velocity and peak flow rates of stormwater runoff for the stated frequency storm of 24-hour duration. SHIMP ENGINEERING LAND PLANNING I SITE DESIGN I CIVIL ENGINEERING I PROJECT MANAGEMENT Design Focused Engineering 912 East High S met Phone: 434227-5140 Chanottemile, VA U902 shimp-engineenng.mm SHI a Lie. a.451 �SS�ONAL �__f VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.20 REVISION: 01) 2020.07.16 FILE NO. E&SC NARRATIVE 18.041 SHEET C2 OF 12 C2 b26 - \— 526,\\ \\ IKON s�z ZL:�\ \ s 90 � N2 4' 8"E &' \ FOU\N 2 8 I / IRON v v ,A % 456.1 ti \ V / v Dense Trees \ FOUND � � � \ %\ , T) L A ~WELL TBR T.M. 46134-5A %\ \ A � OsOO 0 524 ROB RT G. PETCHEL I�& G \ 140 \ \ \ L Oy \ / KAT �Ef� �.—REZCHEL ti — \ L EX. GRAVEL \ — — B. 4296-686 �L \ \ \ DRIVEWAY TBR \ f I / 522 0 x D.B. & 12 PLAT \ \ 2 F � U D.B. 1069-2 & 29 PLAT \ \ ' —�� sTE L / —\ D 9 —443 PLAT \ \ ___-- Ili I SLE VEI I\ \ ONED R1 \\ m\ \ EX. BUILDING TO \ I I \ W \ BE REMOVED 1 \ \ EX. WM TO K REMOVE \ r \\ <) ABANDON CQN ECTION c I \ MAIN 8" DI SAN \ \8" DI SAN' \ \ 1 c I m III I \ \ _\ \ \ \ \ \ S30 / 530 / / j \ 0 2 I \ CIA TREES TBR / stern o v \ \ lO \\ I \ \ \ �TREES TBIR \ \ m V I T.M. 32-29D v, v v � \ � I MAPLE GROVE �• 32-35 CHRISTIAN CHURCH 3.20-5AQR,ES 00 z z \ —� D.B. 2303-626, \ \ AL_BEMARLE LANa. I \ � I\ D.C. 630 THRU 633 PLAT \ DEVELOPMENT, LLC � D.B. 1406-131 PLAT � D.B. 1011-131 PLAT �1D.B. 5160-296 \ \ i oti / --D.B. 781-200 _ D.B` 512-516 PLAT I I \ / o-� 2�4 5PLAT\/ ZONED R15 / 0 ZONED R1 I 00 _J / I / — - 524 0 �N 0 FREES TBR 0—�' // _ \\ i \I SHIMP ENGINEERING LAND PLANNING I SITE DESIGN I CIVIL ENGINEERING I PROJECT MANAGEMENT / I = I I Design Focused Engineering _ — --- - Q 912 East High $treel Phone: 430.227-5140 y22 I / Chanollemile, VA22902 shim"- gineenng.mm / C V I __ I I — --- / I I ml Dense TRON — --- s - _ 1 Ic I �I \ / FOUND — — — — / N "0 I ------------- \ N / -- ---—_ \\ \ I I I CII I v jH ----- --- --- 52a-------- Lie. o. 451m _ _ _ / - 530 15N0NEXCLUS — G H T — — — SS1ONAL EX. GRAVEL \\ � I AND E� _ 5 INGF\ so IRO 144.69 DRIVEWAY T R m / � —� S — \ S26°08'59"W 169.50' — �T — G— Z Dense Trees —— — 53ot — — — IRO _ / VSMP PLAN I 520 — — — ALBEMARLE COUNTY, VIRGINIA - - 'S2p� PROFFIT ROAD TOWNHOMES 520 LINE SOUTH 20' SANITARY EASEMENT / _— c _— _ 8rr R 6 N DB 5301 PG 407 /� s,s �------- 0 ° O _ ------------- _ O SUBMISSION: _ ° 2020.03.20 \ I e 0' SANITARY EASEMENT — — _ REVISION: / \ 0 Q DB 5301 PG 396 — _ _ 01) 2020.07.16 11 I T.M. 32— 9 MAPLE G OV 1 \ I I I I \ I CHRISTIAN CHU CH / I J D.B. 2303-626, D.C. 630 THRU 633 PLAT I � I 1 / D.B. 1406131 PLAT } D.B. 1011131 PLAT �x FILE NO. Q.B. 7-200 18.041 / D.B. �4-555 PLAT EXISTING CONDITIONS ZONED R1� \ &C' SHEET C3 OF 12 N,Do \_I 20 0 20 40 60 / Scale: 1 "=20' C3 / \ - 526 \ \ \ OOFFT ACSA \ \ \\ / \ BOLLARDS IKONU- \ LIMITS OF DISTURBA C .EN EMENT 8"E 482.68 w FOUPID 2 .5g I / Dense Trees IRON / � FOUND \ e p 4 \ �� �o \\ \\ I / EMERGENCY \1 �I LOT 31 1 \1 I \ s� I I I I / ENTRANCE I \ I c� ■ I \ FFE 527.5 \ 1` \ 0. SET AC \ A \ AC E _EASEME T - e _ \\ / / EASEME a I / / NEW 20' o \ 524 LOT 30 \\ \ U \ 34 A \ \ i F� �52_7.5 OPEN o - I = I _- 8 � I LQT 32 LOT 3U LOT 34 L T 35 LOT 36 LOT 37 LOT 38 LQ�T 39 LOT 40 % 1-F- ? _ \ X - - \- FFE�531.0 FFE 531.5 FE 533. FF\534. FFE 534.130 3.2 FFE 535. FFE 534. FF/L 534. FFE 533. - _ SPACE j 0 2 F I I LOT 29 \\ U \ \ I / I 50 -�/ 1 sTE L I I SLE VE \ FFE 527.0 - - _ 32 / / ° \ \ LOT 28 1 1 J °°� %1 \ \ \ I Iz z S2� FFE 527.0 I � \ �� i A9 _ / 3 \\ w W 1 I 1 A_CC_ESS E_A_SEM IT_ L 30 T °A�SA ° _ «a w \mow \ « I 1\\ \ � LOT 27 1 I I - - - - ° FFE 527.0 0 \ ° 1 I I \ N = 1 \ I _ \ \ $n \ \ \ - - T CC 2C -� \ w w�w\�� �( � w v'� « w w w Cw w __ w w-' / w� _I L � 2 8" D SAN o \ �6 \ SAN U \ P o ` ° I 1 \ - -\ PR VATS i� o�D A / A8 1 - I\\ FF�535.5 �� 1 s2p- 36 HP ST - - 1 DI 3B DI w o 0 \ \ \ STURSA E A3 12' DI-3C W A , �� a e 6 \ ` - _ I 59 MJL ll \ EIR w -\. _ tiA \ 4" DPE -- 3� \ a r \LA.Y 1< \ b\ z \ III LOT 22 lU� s p a A7 a 11 �I I I ` LOT MATC�N FFE 526.5 1 U�\ 1 \\ � ERD AIN� ` 53 LOT 16 O FFE 528.0 \ -� LOT 23 1.0 1 FFE 526.5 In / l _ / LOT 17 / o FFE 528.0 \ LOT 24 FE 5-27-P 22 - _ = 1 / z- � v LOT 18 r _ 1 / FFE 528.0 I �� / N 9 / FOE 527.0 N / m LOT 19 �+ ti LOT 26 4 �. / FFE 527.0 LOT 20 \ I / FFE- 5-28-� v 522 I a 4 LOT g 0 i FFE FFE 531.5 � z I I 1 I LOT 3 0 _ o \ 1 uo \ LOT 10 I , I I� I I FFE 535.5 \ 1 \ F\ \ FE 532.0 � I LOT + \ I \ FFE a \ ■ o \ L0� 11 ti"1 1 \ _ �m \ ■ U 1 \ POF�PT CTI N FFE2.0 1 T 12 LO 532.5 o / FFEO 53 •p� �, .a` I \ ■ I I SHIMP ENGINEERING LAND PLANNING I SITE DESIGN I CIVIL ENGINEERING I PROJECT MANAGEMENT T 13 �I __ aa: - I 1 1 ■ I \ 1 Design Focused Engineering LO / / . O 1 ■ I \ 912East High Stmet Phone:43422]-5140 532.5 - F F n - I• T I x 1Y 1 Chadottemile, VA U902 shimp-engineenrgwm 051 I o « 1 I FFE 53 I 1 r LOT 1/4 � - _\ o ° " 1�/IIII� F _I=I II ■ U Dense LOT21 DRAINAGE EASEMENT 5310 F528.5 3ru Uc)\ 275 53 FOUND ------29 526 I. Lr.p 0= - /� 15 \ I I I _ ■ �I SHI a LO 3 p 533.p \ _ � 1 Lie. o.451 / ,--------- ------ 528LIMITS- 0! DIS�RBANCE - -- FFE I 73 7HP 0r ° I m 530 - -- / ' �n-1J11)v w� _ I o ■ I I / 37 F�-t F / - 1 5� 528 - _ _ I .. I o = I ■ ➢1 1 � �SSIONAL � NONEXCLUS ---- U GI (`'BIHT OU ING(S ----- _ _ _ \ = 1 5�- 530 T - U8'59"W 169.50'260- - = ■ m 1 VSMP PLAN /, PROPERTY - - `520_ 0 C FOUND C \U ALBEMARLE COUNTY, VIRGINIA 8Z� �� I I _ LINE - - - - - - 532 --`\_ I' \ PROFFIT ROAD U _ _ _ • A2 - \ \,1 �� TOWNHOMES ♦�� s,s �\ MATCH LI , II \ I I\ SOUTH /\ �♦ ���� oH� H P // U 11\� SUBMISSION: / \ ♦ I U 1 �� I / °yG 2020.03.20 �-+ U \ �♦ U U V / U \ U U 1 __ /U U \\ I G� \ 01) 2I020 07.16 / \♦ �� I LIMITS OF DISTUR8A ULp \ I 1 O /J U \ N I t� U \� �� I I I \I II T4P 32-29D LIMITS OF I \ \ I ♦ rl \ MAPLE GROVE DISTURBANCE 001 \ \ 1 ♦ 1�° I 1 /CHRISTIAN AREA = 3.34\ I4P# /) I\ \\I I( CHURCH / AC \ \\ II ♦� \ I I I I 1 \ \ \ \ I FILE NO. ♦ I \ I 1 \v>/\\I \ 18.041 \� 1 011 I LASS A \ i i \ GRADING & UTILITY ♦ RIP -RAP I rl oti` U v vvll PLAN 1 I Cp 00 SHEET C4 OF 12 o zo ao so m Scale: 1 "=20' C4 NEW m W. = �• y_I( 1N ©--- Imm== I r SEQUENCE OF CONSTRUCTION - PHASE 1 11 1. INSTALL CONSTRUCTION ENTRANCE. b 2. INSTALL SEDIMENT TRAP WITH SILT FENCE AND DIVERSIONS. 532 -- 3. PLACE FILL AROUND SEDIMENT TRAP TO COMPLETE TRAP CONSTRUCTION \ / — s3a - — — — —\ BEFORE ANY MAJOR GRADING OCCURS ON SITE. _ _ _ \ I `\\ 4. CONTACT COUNTY INSPECTOR FOR APPROVAL OF FIELD CONDITIONS. — -- — —s3z — Dense Trees \ \ I 5. BEGIN MASS GRADING. \ s3s - — \ l \ I 6. MAINTAIN PERIMETER CONTROLS. TEL. \ \\ 53p �, / PED pV II \ POLE 1 CHU — CHU —F- CHU — CHU — OHU — CHU — OHU — CHU — OHU — OHU — HU — OHU — OHU — OHU OHU — OHU S32 H O H U�1y{U — P O L N S2& — _ _ —� I POLE \ \ \ O�11 1 532 — / SOIL EROSION & SEDIMENT CONTROL SYMBOLS \ vT Ii G \ \� \ / SYMBOL NO. TITLE KEY 526 LIMITS OF DISTURBANCE 3.02 CONSTRUCTION ENTRANCE cE S` — " \ \ / _ X X 3.05 SILT FENCE SF T\ 7+ TS P S M U \ \\ 30, \ / / e ® 3.07 INLET PROTECTION IP \ \ S PS % \ _ \ 0 1 / - , 3.09 TEMPORARY DIVERSION DIKE DD � 1 ® \ \ &A, I (RE zIT) [DRAWN TO SCALE] 3.13 TEMPORARY SEDIMENT TRAP ST NWELI? T R \1 \ 1 I / 3.18 OUTLET PROTECTION OP \ \%\ Ih� �� 3.31 TEMPORARY SEEDING TS 'L DI c 3.32 PERMANENT SEEDING �S \ �G\ \ % \ O — I?7 / 3.35 MULCH 3.39 DUST CONTROL \ ��� / DIVERSION FENCE DF ° DRIV YY/1 I \ \ — \ I 2 F / LIMITS OF DISTURBANCE STE L l l SLE VE v �\ EX. BUILDING TO / L/ / I v BE REMOVED i W � 1 EX. AIM TO RE REMOVE =\\I 1\ \\\ ) ABANDON CQNtAECTION I x ��` `,J' II \\ \ \ A MAIN (-n I � I \ �3 A \8„ DI SAN \ / o / 1 \ I I 1 \ \ Sao 530 nows �' —+ _ \ // �� \ r L - VER\LAYPR ul En © I SEDIMENT TRAP DR�41f�AGEAREA 2.97ACRES \ \ O �� \ i m I 1\ SHIMP ENGINEERING BOTTOM 60.x28, \ �s26 I 6 Z \ \ ANDPLANNING SITE DESIGN CIVIL ENGINEERING PROJECT MANAGEMENT k I ELEV 519.0' I O O ➢ I I \ o (l 11 1\ \ Design Focused Engineering \ \ 912 East High SIms1 Phone: 434227-5140 /1� \ Chedolksvilk, VA 22902 shimp-engineenng.com .713 00 s / I \ • \ v . SHI a Lie. o. 451 4 t6 -- _/r / / I 0 VSMP PLAN _ FILL THIS AREA TO FINISH SEDIMENT TRAP PRIOR TO MAJOR SITE WORK / // / II ALBEMARLE COUNTY, VIRGINIA 2 I ® / I ° � I / / I PROFFIT ROAD _ ----- ' ,/ I I ' u 1 Dense Tree TOWNHOMES \ I I 52a — — SOUTH 526 - �__-- _ _ ~III — _ — — — — / \ O N V — — — — — — — — — — — — -- 528 LIMITS- OF DISTURBANCE — — _ a \ I I I I1\ I II SUBMISSI ON: 2020.03.20 ------------- / / AND ENEX�—52 p530 lI REVISION:LUS I—H—T OF Ex. GRAVE01)2020.07.16CSS ml 530 DRIVEWAY T R \ m I 0 1 Dense Trees — s3o — — — — —� 532 --� I ( \ FILE NO. 18.041 c E&SC PLAN PH 1 r \ I �q \ \ I SHEET C5 OF 12 001 20 0 20 cr 0 60 C 5 Scale: 1 "=20' POLE a SEQUENCE OF CONSTRUCTION - PHASE 2 > - 526 _ \ \ \\ / / \ \ 1. IN TALL ADDITIONAL SEWER MAINS AND WATERLINE. ANON o IN MALL STORM PIPING AND INLETS, BUT KEEP ALL INLETS EXCEPT A10 $2 6- LIMITS OF DISTURBANCE \ \ 8"E 482.68' w \ FOUND 2 .58 LOC ED OFF UNTIL ROAD IS STABILIZED. INSTALL INLET PROTECTION e Trees IRON m m IIIIIIIIIIIIIIIIIIIDN N 0 11111111111111 11 1111 D Al 0. FOUND / \ 2� 1 / CO NECT PIPES A6 AND A7 WITH A MATTED CHANNEL WHERE FUTURE \ �� \ \\ �� \\ I / \ ° 3 \ _ / D TEN ON PIPES WILL B-- INSTALLED. PLACE SILT FENCE AROUND CHANNEL. \ O �- \ I 4. BILIZE ROAD WITH 1.5 INCH STONE AND PLACE INLET PROTECTION ON LOT 31 \ \ \ s� I �/ 1 g \ MAI ING INLETS. FFE 527.5 \ \ \ I _ ONC ROAD IS STABILIZED, REMOVE SEDIMENT TRAP & DIVERSION AND \ \ ISH ONSTRUCTION ON LOTS 22-26. LOT 30 \ \\ \ \ \\ 34 \ \ \ _ \ \ DI S F 4 FFE �2.7.5 \ \ \ \ \ v o 0 \ 28 LOT 32 LOT 3F LOT 34 L\T 35 LOT 36 LOT 37 LOT 38 L T 39 LOT 40 \ I / / / SOIL EROSION a SEDIMENT CONTROL SYMBOLS X x I \ \I FFE\531.0 FFE 531.5 FE 533. FF 534. FFE 534. 32 FFE 535. FFE 534. FF 534. FFE 533. _ _ \ \ 2 F 1 r SYMBOL NO. TITLE KEY \ / _ _ ) _ STE L \ � LOT 29 \\ \ \ \ \ \ \ / _ 50 - - / O I SLE VEI I 3.02 CONSTRUCTION ENTRANCE CE \ x FFE 527.0 32 \ l I \ O x x 3.05 SILT FENCE SF $32 I - ® 3.07 INLET PROTECTION IP F \ 30 / \ _00 J \ \ \ L 0 T 2 8 �� \ \ \ \ \ / / / II 1 3.09 TEMPORARY DIVERSION DIKE FFE 527.0 \ 3.12 TEMPORARY DIVERSION \ \ yW wN- 0 1 \ \\ [DRAWN TO SCALE] 3.13 TEMPORARY SEDIMENT TRAP ST 3.18 OUTLET PROTECTION J � Ll�" O 5P W w ° �', a a W e 3.31 TEMPORARY SEEDING\ LOT 27 Id I N °.. \\ o , _ 1 � 3.32 PERMANENT SEEDINGMAT LINE FFE 527.o W 3.35 MULCH/°13.39 DUST CONTROL W Wh W���W V�W i -W W W \ W W LW W -n W LIMITS OF DISTURBANCE 0 2 8" DI SAN z � o \ 26 \ " DI SAN `d� \ ° I --A1 \ \ 3.17 STORMINATER CONVEYANCE CHANNEL SC \\ 1 \\ \\ \ PRIVATE k�D A I A8 �0\\ FF\535.5 s °e, l r/ \ 3 \ 11 MIL & \ F \ I \ E ■ q A3 0 � ss � _ \ 12' DI -SC W/�A4 1 a-- SLAYR C 1 \\ \k� WEIR WALL �2��w \ \ Fr--- / 3� \ \ \ II % a - \ 4. p.' A7 wl I Lo \� a I c I1 ■ r535.5 m� LOT LOT 16 FFE 531.V. ■ 0 FFE 528.0 TOM 60'x28' x U,ELEV 519.0' LOT 3 O 6� \ 11 LO I 1 \ � SOT 10 INSTALL SCC LOT 17 532•0 MATTING PER . DETAIL 11/C8 1 Im I FFE 535.5 4 °o;\I / / � ■■ 1 \ \ FIFE \ I l FFO53J N \\ \ / _ - - _ / k - - - -- 522 T 18 / - - - - - - FOE 528.0 X x LOT 19 _ FFE 528.5 \ 524 / 1 0A11 Inc 1 FF2.0 / LOT 125 FFE 532• \ / / -- y °` FOET532.5 / /I \'� � �<.a FIFE I 522 I I T 1/4 _ - - - - - sz�- O Dense _ _ LOT 21 FFE 5313.0 I � IRON 26 4 - 528.5 1 _ _ . - FOUND - - - - - - --75 / l I ---�_------- 526 - S27° - --�/ 5 I n / / FFOT533.0 \ - - - - - - -------528L111I 91�RB:.�,>. 73 97HP - - ANCE - - - 530 - 528 37 530 _ _ IRO S26°08'59"W 169.50' 530 S .T DeY1RP TYPPQ I _ OPERTY LINE - - ♦ A2 }� TS P g 516 }/■■loft ■ \ ♦�/I ♦♦ o o 0 ■■��■■s■■�■■ / \ \ 0 4 0 �♦ 'v LIMITS of DISTU �■■ RBA I ♦I I � I I 1 TM/P 32-29D LIMITS OF � P I I \ MAPLE GROVE DISTURBANCE ♦ --1 I TS ♦ I I /CHRISTIAN AREA = 3.34 /�'� ♦ I\ \\I CHURCH / \ AC � / ♦ \ I � 1 I 1 \ \ I F -- 1 I 11 I � SHIMP ENGINEERING LAND PLANNING I SITE DESIGN I CIVIL ENGINEERING I PROJECT MANAGEMENT Design Focused Engineering 912 East High Sheet Phone: 434M7-5140 ChanoOesmile, VA 22902 skimp-eagineennI 1. S H 1 a c. o.45 '1�I1�Zn fV' SIONAL 1 i VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.20 REVISION: 01) 2020.07.16 FILE NO. E&SC PLAN PH 2 18.041 I I \ ♦ 1 1 1 II I /I J °tip SHEET CIS OF 12 .I CAzo o zo 40 so \ , 00 C6 Scale: VI - ------532-- �-- \ 530 / \ \ 530 - 526 - i� 0) I I N 532 b 1\ SEQUENCE OF CONSTRUCTION - PHASE 3 1. INLET PROTECTION TO REMAIN UNTIL ALL WORK ONSITE IS COMPLETE. 2. APPLY PERMANENT SEEDING. 3. WHEN SITE IS STABILIZED, INSTALL STORMTECH CHAMBERS WITH THE GUIDANCE OF AN ADS REPRESENTATIVE. 4. CALL FOR FINAL INSPECTIONS. 530 TEL. _ \ -'--.\- \ I \ PEE) o 7 I r POLE I c \ \ -CHU-OHU-/-OHU-OHU-OHU-OHU-OHU-OHU-OHU-OHU�HU �OHU-OHU-OHUOHU-OHU C32 OH p HU- ��{U- - L - - - - - - - - - - / / I POLE 526, �\ \ \ / �\ IKON LIMITS OF DISTURBANCE 8"E 482.68' w \ FOUND �\ 2 .58 I / - IRON / -OUND \ \ X / _// PROPOSED ROW $ �, \�'� // \ 3 ` \ ■ `DEDICATION 35f5',WIDTH p' ■ I FROM ROAD CL - - - LOT 31 s I ° FFE 527.5 \ \ a \ \ I 7 ° o \ 5j9 LOT 30 V A _ ilt 5 4 - FFE �27.5 \ \ 28 LQT 32 LOT 3� LOT 34 FT 35 LOT 36 LOT 37 LOT 38 L T 39 LOT 40 I \ \ FFE�531.0 FFE 531.5 FE 533. FF 534. FFE 534. FFE 535. FFE 534. FF 534. FFE 533. _ _ _ _ _ \ 2 F STE L \ \ \ 32 / � o o LOT 29 \ \ \ \ \ \ / so SLE VEI FFE 527.0 \ \ \ / - - - 32 I \ Co \ \ 532 I - cn 30 / \ _ LOT 28 °° szl FFE 527.0 g \ \ \ \ / A9 W . I \ p c�F' I \ z a W -W o ..a a e. o \ I C 0 FOE 527,0 I � 1 \ \ I \ \ \ W vp \W\8o� y� W L:LW w W -yy W yJ W W L y�;n 1 c I - - - _4 I I p 2 8" DI SAN z � o _ 26 \ " DI SAN `c \ Q ° 1 \\ \\ A8 5 PRIVATE k �D A / I 1 - /p \\ FFE�35.5 \ 5�36 HP ST \ �1 DI 3B _ _ A3`ss °MIL \ \ I \ \ 12 DEIR 1MAt wA ,�� W _\ 8 - tiA \ 4» DIP / _ - 31� \ SLAY F C 1 \\ F o LOT 22 s .a. 4.. A7 �I I \\ LOT FF35 \ a = I Ln \ I FFE 526.5 F 1 \ \ \ ERD AEI y :d g o� \ E 5 \ I I oT \ I CD �� LOT 16 \ O \ FFE 528.0 \ D \ a LOT 23 I � FFE 526.5 < C) / \ 'I C14 i / FIFE 528.0 o i \ / - LOT 24 - _ - Cn fook / - -FFE-527-P 522 = / FIFE 5O T880 �gg� / LOT 25 / FFE 527.0 / LOT 19 524 FFE 528.5 / / LOT 26 / FFE 527.0 pm \ ---LOT 20 FIFE / - 534 - - I ❑\ `_- 536 Dense Trees \ I / 536 - - - FFE 531.5 \ \ -{ I LOT 3 0 1 C9 FFE I \ -\\ F5T 10 532.0 I 34 \ z \ I I I LO53C \ \ \ FFE �� \ ■ o_ \ � Lb NSPECTI FFEC2 PORT I r I \ s ( 0 1 ■ o \ LOT FFE 532.5 o I / T \ ■ LO 5 ■ / 6 I wti FFE 535.0 I \\ I\ I LOT 13 FFE 532.5 / 6 I -- ° I LO 534.5 1 III FFE � I I T / I F I I_ I I ■■, ■■ F1/47.5 LO z�- p 5313.0 DenseTe LOT 2 52*�IRON \ 264 _ 528.5 L� 75 534.5 mc�nNvFOUND 526 S2759' MU 15 II l 1 I I I I // // _---- - ----- - __-------- 3_3.50 FFE 5 528 LIM1T�of aSTUfAnC� 97HP \ OT 8 37 73 530 528 _I0 _ '■■ Cm I 1 I I -0 s3o _ -CL IRO S26°08'59"W 169.50, ■ m I s _ Dense Trees � - � � -� - 530F - - - - IRO �'c' ----- -- c FOUND I 1 \ 8- 532 ^ � I -r--532 --� I Q \ / Q 1 G F v Fp 0 ,y \ 0\ I 20 0 20 a0 60 ` \ Scale: VI �S1 �i1 �S1 �S1 �11 U - SOIL EROSION & SEDIMENT CONTROL SYMBOLS SYMBOL NO. TITLE KEY 3.02 CONSTRUCTION ENTRANCE CE x x 3.05 SILT FENCE SF ® 3.07 INLET PROTECTION IP 3.09 TEMPORARY DIVERSION DIKE DD [DRAWN TO SCALE] 3.13 TEMPORARY SEDIMENT TRAP ST 3.18 OUTLET PROTECTION OP 3.31 TEMPORARY SEEDING O 3.32 PERMANENT SEEDING �S 3.35 MULCH 3.39 DUST CONTROL DC MIT MIT LIMITS OF DISTURBANCE SHIMP ENGINEERING LAND PLANNING I SITE DESIGN I CIVIL ENGINEERING I PROJECT MANAGEMENT Design Focused Engineering 912 East High Sheet Phone: 434M7-5140 ChanoOesmile, VA 22902 skimp-eagineennI VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.20 REVISION: 01) 2020.07.16 FILE NO. 18.041 E&SC PLAN PH 3 SHEET C7 OF 12 C7 STONE 70' MIN. CONSTRUCTION ACCESS 3" SM-2A ASPHALT TOP COURSE 2% 2% STONE CONSTRUCTION ACCESS 2% �6" MIN. 21A AGGREGATE BASE PROFILE 70' MIN - ASPHALT PAVED / WASHRACK 2% 27 12' MIN.* L,-O Ir r_ -POSITIVE DRAINAGE *MUST EXTEND FULL WIDTH TO SEDIMENT OF INGRESS AND EGRESS OPERATION TRAPPING DEVICE PLAN 12' MIN. 29 EXISTING PAVEMENT PAVEMENT JOSH VE DRAINAGE TO SEDIMENT IRAPPING DEVICE FILTER CLOTI-IJ SECTION A -A A nlinilutun water tap of 1 itch nulst be histalled with a n inininnr 1 inch ballcock shutoff valve suppl}in.2 a wash hose with a diameter of 1.5 inches for adequate constant pressure. Wash water must be carried away front the enhance to an approved settling area to remove sedunent. All sedunent shall be prevented from entering Storm drains, ditches, or watercourses. PAVED WASH RACK "NC SCA-L 1 YAVEll C8 Not To Scale TABLE 3.31•C TEMPORARY SEEDING PLANT MATERIALS, SEEDING RATES, AND DATES SEEDING RATE NORTH' SOTITH6 PLANT 311 111 1111 2/IS 5/I 9/1 SPECIES CHARACTERISTICS Acre IOW II Ito to to to to to 4/30 8/15 1111 4130 9/1 11/IS OATS 3 bu. (up to IW Ibs., 2 tbs. X - - X - - Use spring viuutie' (e.g., Noble). A( vws setiwl not 1. than 5016s.) RYE" 2 ba. (up to 11016s., 2.5 lb.. X - X X - X Uses for IMe fill'eed P' wmWr saAe ,.h, not less than 50 Ibs.) cover. Tolentei cold and low moiamn. GERMAN MILLET 5016'. epprox. 1 lb. - X - - X - Warm.season umud. Dies at first (SMaria iWiu1 frost. May be Wdd to summer muss. ANNUAL RYEGRASS` W tbs. 1'h tbs. X - X X - X May be added in mixes. Will (LQ y' tm multi-Romml mow wl of me on'[sods. WEEPING 15 Ibs. 51h oss. - X - - X - Warm-seasw pe ..W. May LOVEGRASS hooch. Tolenles hot, dry slopes (Entemitifi,t'iti,oi and acid, infertile soils. Mey be added to mixes. KOMAN 2516s. approx. Ph X X - X X - W. season umota lume eg. LESPEDEZA` tbs. Tolerates acid soils. May be (l-.82291a Mi YIaCPa added to nixes. ' Northern Piedmont and Mountain region. See Plates 3.22-1 and 3.22-2. b Southern Piedmont and Coastal Plain. ` May be used as a cover crop with spring seeding. it May be used as a cover crop with fall seeding. X May be planted between these dates. - May a01 be planted between these dates. 2 TEMPO] C8 Not To Scale 1992 Y SEEDING (TS a N L. 3.35 TABLE 3.35-A ORGANIC MULCH MATERIALS AND APPLICATION RATES RAM: MUI CHES. NOTES: Per Acre Per 1000 sq. ft. Straw or Hay 1§ - 2 tons 70 - 90 lbs. Free from weeds and coarse (Minimum 2 matter. Must be anchored. tons for Spread with mulch blower winter cover) or by hand. Fiber Mulch Minimum 35 lbs. Do not use as mulch for 1500 lbs. winter cover or during hot, dry periods.' Apply as slurry. Corn Stalks 4 - 6 tons 185 - 275 lbs. Cut or shredded in 4-6" lengths. Air-dried. Do not use in fine turf areas. Apply with mulch blower or by hand. Wood Chips 4 - 6 tons 185 - 275 lbs. Free of coarse matter. Air- dried. Treat with 12 tbs nitrogen per ton. Do not use in fine turf areas. Apply with mulch blower, chip handler, or by hand. Bark Chips 50 - 70 cri. 1-2 cu. yds. Free of coarse matter. Air - or yds. dried. Do not use in fine Shredded turf areas. Apply with Bark mulch blower, chip handler, or by hand. ' When fiber mulch is the only available mulch during periods when straw should be used, apply at a minimum rate of 2000 lbs./ac. or 45 lbs./1000 sq. ft. Source: Va. DSWC 3 MULCHING C$ Not To Scale S�) EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. 4 SILT FENCE C$ Not To Scale W. WIRE SUPPORT SILT FENCE DROP INLET PROTECTION 2 X 4' WOOD FRAME DROP INLET 1.5 1ME ELEVATION OF STAKE AND FABRIC ORIENTATION DETAIL A SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER THAN 5%) WHERE THE INLET SHEET OR OVERLAND FLOWS (NOT EXCEEDING 1 C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS IN STREET OR HIGHWAY MEDIANS. 5 INLET PROTECTION IP C8 Not To Scale GRAVEL CURB INLET SEDIMENT FIL TER \ �♦ r 4 \ ., 4 \ 1 � y♦ r 4 \ ♦ r 4 i �• GRAVEL FILTER * 12" RUNOFF WATER WIRE MESH V FILTERED WATER } o:. .... G.. F SEDIMENT a_. CONCRETE GUTTER 12' CURB INLET SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS WHERE PONDING IN FRONT OF THE STRUCTURE IS NOT LIKELY TO CAUSE INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED AREAS. • GRAVEL SHALL BE VDOT #3, #357 OR 5 COARSE AGGREGATE. 6 INLET PROTECTION IP C$ Not To Scale 10% SETTLEMENT �. 0.3' FREE BOARD D89ICN FTAR DEPTH 7 VEE-SHAPED DIVERSION DV) C$ Not To Scale Compacted Soil 18" min. ........................ -Flow III 4.5' min. $ DIVERSION DIKE DD C$ Not To Scale PERMANENT SEEDING SPECIFICATIONS February 16 through April 30: Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; Annual Rye - 20 Ibs/acre. May 1 through August 15: Kentucky 31 Fescue - 128 lbs/acre; Red Top Gross - 2 lbs/acre; Foxtail Millet - 20 lbs/acre. August 16 through October 31: Kentucky 31 Fescue - 128 lbs/acre; Red Top Gross - 2 lbs/acre; Annual Rye - 20 lbs/acre. November 1 through February 15: Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; Winter Rye - 20 lbs/acre. MULCHING SPECIFICATIONS: Straw or hay at a rate of 2 tons/acre. Must be anchored. Spread with mulch blower or by hand. LIME AND FERTILIZER SPECIFICATIONS: Lime and fertilizer needs should be determined by soil tests. Soil tests may be preformed by the Cooperative Extension Service Soil Testing Laboratory at VPI&SU, or by a reputable commercial laboratory. Information concerning the State Soil Testing Laboratory is available from CITY Extension Agents. Under unusual conditions where it is not possible to obtain a soil test, the following soil amendments will be applied: For Permanent Seeding: Seeded areas shall be limed at a rate of 2 tons per acre, and fertilized at a rate of 1,000 lbs. per acre of 10-20-10 (10 lbs. per 1,000 square feet) or equivalent. For Temporary Seeding: Seeded areas shall be limed at a rate of 2 tons per acre, and fertilized at a rate of 600 lbs. per acre of 10-20-10 (10 bs. per 1,000 square feet) or equivalent. LOW MAINTENANCE GROUND COVER: SOUTHEAST NATIVE GRASS SEED MIX (AMERICAN MEADOWS INC.) For slopes steeper than 3:1 grade, Mix the following seeds at 30 lbs/acre each, along with EC-2 Matting: Virginia Wildrye (Elymus virginicus), Little Bluestem Grass (Schizachyrium scoporium), Purpletop (Tridens flavus), Broomsedge (Andropogon virginicus) and Indian Grass (Sorghastrum nutans). s PERMANENT SEEDING PS C8 Not To Scale TABLE 3.39-A ADHESIVES USED FOR DUST CONTROL Water Application Dilution Type of Rate Adhesive (Adhesive: Water) Nozzle Gallons/Acre Anionic Asphalt Emulsion 7:1 Coarse Spray 1,200 Latex Emulsion 12.5:1 Fine Spray 235 Resin in Water 4:1 Fine Spray 300 Acrylic Emulsion (Non -Traffic) 7:1 Coarse Spray 450 Acrylic Emulsion (Traffic) 3.5:1 Coarse Spray 350 10 DUST CONTROL DC C$ Not To Scale } DISTANCE IS 6' MINIMUM IF FLOW IS TOWARD EMBANKMENT FLOW 12 CULVERT INLET PROTECTION CIP) C8 Not To Scale TYPICAL WA TER WA Y CROSS -SECTIONS tffl_ III II I III TYPICAL CONCRETE LINED DITCH TYPICAL GRASS LINED DITCH TYPICAL VEE CROSS -SECTIONS T PARABOLIC WATERWAY CROSS-SECTION oil -� TYPICAL RIRRAP CHANNEL WITH NO STONE D ONLY THE y FILTER W FILTER CLOTH NOTE: ALTHOUGH FILTER CLOTH IS PREFERED, A GRANULAR FILTER MAY BE SUBSTITUTED FOR FILTER CLOTH. ( FOR PHYSICAL REQUIREMENTS, SEE STD. & SPEC. 3.19, RIPRAP) EXPANSION JOINT (90' SPACING) TYPICAL CONCRETE CHANNEL A 0 o y n4•. M- b=�^°'` a„=>�°`Y --scq Y'#a q:'S- d 4 b �R. NOT TO SCALE - #4-18" DOWEL A LOCATED AT JOINTS avn wcT ncn wrnc camnrr SECTION A -A TRAPEZOIDAL WATERWAY CROSS -SECTIONS IN a (IO:Y IN CLOTH) 3" DIA. WEEP HOLE, 8' o.c. RCE: VA. DSWC PLATE 3.17-1 13 SCC: STORMWATER CONVEYANCE CHANNEL 08 )Not To Scale PIPE OUTLET CONDITIONS A A ANLA WI IN IAU ULNINLU { CHANNEL a- I L(1=11F� 0% d SECTION A -A FILTER CLOTH KEY IN 6"-9'; RECOMMENDED FOR ENTIRE PERIMETER NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION BASKET, OR CONCRETE. 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED USING PLATES 3.18-3 AND 3.18-4. 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 INCHES. Sediment Trap Design Data Weir DA Wet D1 Wet Vol. Area 1 Dry D2 Dry Vol. Area 2 No. A B C H (ft.) Z (ft.) Length (AGs.) Vol. (ft') CY (sq. ft.) Vol (ft-) Cy (sq. ft.) (ft) (Req.) (Prov.) (ReQ) (Prov.) 1 524.0 522.0 519.0 3.0 3.0 17.8 2.97 199.0 3.0 218.0 2244.0 199.0 2.0 199.0 3107.0 Q10 ms) La (ft) Do (ft) 3Do (ft) d50 (in) depth (in) Outlet Condition Al 5.86 11.0 2.00 6.00 6.0 9.0 Channel 14 ) OUTLET PROTECTION TABLE (OP C8 Not To Scale ORIGINAL GROUND ELEV. Area 2 DRYSTORAGE 1p; 67 CU. YDIACRE Areal WETSTORAGE 67 CU. YDIACRE D1 (EXCAVATED) CLOTH ORIGINAL GROUND EL=C \FILTER ELEV. \ *SEE PLATE 3.13-1 COARSE AGGREGATE** CLASS I RIPRAP CROSS SECTION OF OUTLET CLASS 1 RIPRAP LENGTH (IN FEET) _ 6 X DRAINAGE AREA (IN AC.) �- DIVERSION DIKE COARSE AGGREGATE EXCAVATED FILTER CLOTH **COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5 OUTLET (PERSPECTIVE VIEW) 16 TEMPORARY SEDIMENT TRAP (ST) C8 /Not To Scale 3do (MIN.) 'IPE OUTLET TO WELL )EFINED CHANNEL STANDARD SYMBOL DETAIL C-9 DIVERSION FENCE H- OFF DRAINAGE AREA - 2 ACRES �F� MAX.MAXIMUM 10l -yl 34 IN MIN. GROUND SURFACE II MIN. u n u n 36 IN MIN. 2% IN DIAMETER II II GALVANIZED STEEL OR ALUMINUM CHAIN UNK FENCE POSTS COVERED WITH IMPERMEABLE SHEETING ELEVATION UV RESISTANT IMPERMEABLE SHEETING ON BOTH SIDES OF FENCE 2% IN DIAMETER GALVANIZED STEEL EXTEND IMPERMEABLE SHEETING OR ALUMINUM OR PROVIDE SOIL STABIUZATION MATTING POSTS IN 4 FT MIN. ALONG FLOW SURFACE FLOW M IN MIN. IMPERMEABLE SHEETING 8 IN MIN. INTO GROUND FOLD SHEETING OVER TOP OF FENCE AND SECURE WITH WIRE TES sECnoN CONSTRUCTION 1. SPECIFICATIONS USE 42 INCH HIGH, 9 GAUGE OR THICKER CHAIN UNK FENCING (2% INCH MAXIMUM OPENING). 2. USE 2% INCH DIAMETER GALVANIZED STEEL POSTS OF 0.095 INCH WALL THICKNESS AND SIX FOOT LENGTH SPACED NO FURTHER THAN 10 FEET APART. THE POSTS DO NOT NEED TO BE SET IN CONCRETE. 3. FASTEN CHAIN UNK FENCE SECURELY TO THE FENCE POSTS WITH WIRE TES 4. SECURE 10 MIL OR THICKER UV RESISTANT, IMPERMEABLE SHEETING TO CHAIN UNK FENCE WITH TIES SPACED EVERY 24 INCHES AT TOP, MID SECTION, AND BELOW GROUND SURFACE. 5. EXTEND SHEETING A MINIMUM OF 4 FEET ALONG FLOW SURFACE AND EMBED END A MINIMUM OF 8 INCHES INTO GROUND. SOIL STABIUZATION MATTING MAY BE USED IN UEU OF IMPERMEABLE SHEETING ALONG FLOW SURFACE. e. WHEN TWO SECTIONS OF SHEETING ADJOIN EACH OTHER, OVERLAP BY 6 INCHES AND FOLD WITH SEAM FACING DOWNGRADE. 7. KEEP FLOW SURFACE ALONG DIVERSION FENCE AND POINT OF DISCHARGE FREE OF EROSION. REMOVE ACCUMULATED SEDIMENT AND DEBRIS. MAINTAIN POSITIVE DRAINAGE. REPLACE IMPERMEABLE SHEETING IF TORN. IF UNDERMINING OCCURS, REINSTALL FENCE. MNrAMD STANDARDS AND SPECIFICATIONS FOR SOIL EROSION AND SEDIMENT CONTROL US. DEPARTMENT OF AGRICULTURE 2011 MARYIAND DEPARTMENT OF ENWRONMEM NATURAL RESOURCES CONSERVATION SERVICE WATER MANAGEMENT ADMINISTRATION 15 I)IVEM C8 Not To Scale SHIMP ENGINEERING LAND PLANNING I SITE DESIGN I CIVIL ENGINEERING I PROJECT MANAGEMENT Design Focused Engineering 912 East High Street Phone: 434-227-5140 Chadottesville, VA U902 shimp-engineering.com % SHI Lie. o.451 �SSfONAL VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.20 REVISION: 01) 2020.07.16 FILE NO. E&SC DETAILS SHEET C8 OF 12 C8 Z 0 U z 54 ZS Z5a 53 53 52 52 51 d N 3 0 Z p p0 � J N+ M O w � w zRa¢N M n s= o� 10+50 11+00 11+50 124 SANITARY PROFILE M-Ma 1 /. HORZ: 1 =20' f A8 540 535 530 525 520_ 515 510 505 A9 A10 540 535 530 525 520 IN IN FrA ■ m-m IIIFAIIIII ■ -aIIFlLil7� �ftI7 �7 • -• "3i7�Iil© _- •dial' • " ��• � - 10+00 10+50 11+00 500 2 STORM PROFILE A7-A10 C9 VERT:1"=10' HORZ: 1"=20' 4 54 54 53 53 52 52 51 51 50 11+50 I I I I I 0 J Y 5 No 3 c_ ¢ w z �vJ 0 000 0- ZZZ � zzz z 10 0 � 10+�50 11+00 w� Note: Contractor Shall Perform Field urvey to Confirm Adequate Slope of Each Pipe Before Proceeding to the Next. 4 SANITARY PROFILE M-Ma C9 PERT:1"=10' HORZ: 1"=20' 524.97 523.53 521.10 . 9 c9 ISCALK 1-3C TOP 525.77 IEIR TOP 523.40 3" ORIFICE INV. 521.40 8" ORIFICE INV. 516.72 TAIL STR. A4 540 535 530 525 520 515 510 505 500 10+00 11+50 GROUND ELEVATION 52E STONE TOP 525 CHAMBER ROW TOP 524 535 N 530 525 11 520 1 2'M T 515 1 12+00 540 535 530 525 520 515 510 505 PROFFIT ROAD TOWNHOMES SOUTH LD-229 STORM DRAIN DESIGN COMPUTATIONS From To Catch. Runoff Inc Accum ToC 10-Yr 10-Yr Up Dn Pipe Inv Pipe Pipe Velocity Flow time Point Point Area Coef AC AC Intensity Flow (cfs) invert Invert Length Slope Diameter Capacity Inc (ac) (min) (iNhr) El El (ft) % (in) (cfs) (ftls) (min) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 A10 A9 0.42 0.44 0.18 0.18 5.00 7.10 1.30 529.00 526.50 53.04 4.71% 15 15 7.6 0.12 A9 A8 0.18 5.00 7.10 1.30 524.50 523.70 77.56 1.03% 15 7 4.4 0.29 A8 A7 0.92 0.80 0.73 0.92 5.00 7.10 6.51 523.50 522.50 29.6 3.38% 15 13 10.5 0.05 Note: Detention System Between A7 & A6 A6 A5" 517.30 517.21 34.92 0.26% 36 A5 A4' 517.11 516.87 94.38 0.25% 36 A4 A3 0.79 0.80 0.63 0.00 5.00 7.10 5.86 516.72 516.10 77.42 0.80% 24 6 5.8 0.22 A3 I A2 I 1 0.00 1 0.00 1 5.00 7.10 1 5.86 515.90 1 514.00 1 267.25 1 0.71 % 1 24 1 6 5.7 078 A2 Al 0.00 1 0.00 1 5.00 1 7.10 1 5.86 1 513.45 1 511.11 1 97.26 1 2.41% 1 24 1 7.1 021 'Pipe Sizing not computed as pipe is used for storage 53 j4 - 53 52 52 51 Z4b IN v C•Tii GCS Ailll� II2Si h�Ti 1112 lid IIIIIIIIIIIIIIIIIIII�w� ��■- ■ONSON ■■� mIIIIIIIII - =off ■ONSON' ■ONSON ' ■ IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII■ s \SAA CC�VERT: HORZ: 11+00 © •_• llOi••1119I[•ll[•]0li�,fit•71�rT ^ ' • Flo ■ � -.. � tiu�r �Iil1Y'/�Mla�■■■■■■��■ KIIMI.n. 11►11 M I. _ 910••• \ •� •:u 50 10+00 10+50 11+00 s STORMTECH PROFILE C9 VI1"=10' HORZ: 1"=20' ADS GEOSYNTHETIC 601T NON -WOVEN GEOTEXTILE AROUND ALL STONE LAYERS #3 STONE " UNDERDRAIN INV. 517.5' STORMTECH MC-4500 (TYP.) 3' 7 1STORMTECH CHAMBERS SECTION DETAIL C9 SCALE: 1"=5' 530 525 520 515 510 11+50 535 530 525 520 515 1•ib1F1� INSPECTION PORT GROUND ELEV. 528.05' STONE TOP 525.80' 1.0,ISOI ATOR ROW TOP 524.80' ISOLATOR ROW I TOR BOTTOM 519.8' 75' #3 STONE BER BOTTOM 519.5' ST NE BOTTOM 517.50' A4 TABLE 1, RECOMMENDED MINIMUM TRENCH WIDTHS HP STORM TRENCH INSTALLATION DETAIL MIN. TRENCH PIPE DIAM. WIDTH 12" 300 762 15'" 34" 34" 375mnn 864mm 18" 39" 450mm 991mm 24" 49" 600mm 11919mml 30" 56" 50mm 1422mm 36" 84" 900mm 165mm 42" 72" 1050mm 1829mm 48" 80" 120Dmm 2032mm 80" 98 1500mm 2438mm a. 3, Y'!91 HAUNCH TABLE 2, MINIMUM RECOMMENDED COVER BASED ON VEHICLE LOADING CONDITIONS BEDDING 4" FOR 12-24" PIPE 6' FOR 30'-60' PIPE MIN TRENCH WIDTH SUITABLE (SEE TABLE) FOUNDATION NOTES: 1. ALL PIPE SYSTEMS SHALL BE INSTALLED IN ACCORDANCE WITH ASTM D2321, "STANDARD PRACTICE FOR UNDERGROUND INSTALLATION OF THERMOPLASTIC PIPE FOR SEWERS AND OTHER GRAVITY FLOW APPLICATIONS', LATEST ADDITION, SURFACE LIVE LOADING CONDITION HEAVY CONSTRUCTION PIPE OIAM. H-25 (75T AXLE LOAD) 12"-48' 12" 48" 300mm-1200mm 305mm 1219mm 60" 24" 60" 1500mm 610mm 1524mm VEHI LE IN EX ESS OF 75T MAY RE UIRE ADDITI NAL COVER WITH THE EXCEPTION THAT THE INITIAL BACKFILL MAY EXTEND TO THE CROWN OF THE PIPE. SOIL CLASSIFICATIONS TABLE 3, MAXIMUM COVER FOR ADS HP STORM PIPE, it ARE PER THE LATEST VERSION OF ASTM D2321. CLASS IVB MATERIALS (MH, CH) AS DEFINED IN PREVIOUS VERSIONS OF ASTM D2321 ARE NOT APPROPRIATE BACKFILL MATERIALS. 2. MEASURES SHOULD BE TAKEN TO PREVENT MIGRATION OF NATIVE FINES INTO BACKFILL MATERIAL, WHEN REQUIRED. 3. FOUNDATION: WHERE THE TRENCH BOTTOM IS UNSTABLE, THE CONTRACTOR SHALL EXCAVATE TO A DEPTH REQUIRED BY THE ENGINEER AND REPLACE WITH SUITABLE MATERIAL AS SPECIFIED BY THE ENGINEER. AS AN ALTERNATIVE AND AT THE DISCRETION OF THE DESIGN ENGINEER, THE TRENCH BOTTOM MAYBE STABILIZED USING A GEOTEXTILE MATERIAL. 4. BEDDING: SUITABLE MATERIAL SHALL BE CLASS I, II, III, OR IV. THE CONTRACTOR SHALL PROVIDE DOCUMENTATION FOR MATERIAL SPECIFICATION TO ENGINEER. COMPACTION SHALL BE SPECIFIED BY THE ENGINEER IN ACCORDANCE WITH TABLE 3 FOR THE APPLICABLE FILL HEIGHTS LISTED. UNLESS OTHERWISE NOTED BY THE ENGINEER, MINIMUM BEDDING THICKNESS SHALL BE 4" (100mm) FOR 12"-24" (300mm$00mm) DIAMETER PIPE; 6" (150mm) FOR 30"-60" (750mm-1500mm) DIAMETER PIPE. THE MIDDLE 113 BENEATH THE PIPE INVERT SHALL BE LOOSELY PLACED. PLEASE NOTE, CLASS IV MATERIAL HAS LIMITED APPLICATION AND CAN BE DIFFICULT TO PLACE AND COMPACT; USE ONLY WITH THE APPROVAL OF A SOIL EXPERT. 5. INITIAL BACKFILL: SUITABLE MATERIAL SHALL BE CLASS I, II, III, OR IV IN THE PIPE ZONE EXTENDING TO THE CROWN OF THE PIPE. THE CONTRACTOR SHALL PROVIDE DOCUMENTATION FOR MATERIAL SPECIFICATION TO ENGINEER. MATERIAL SHALL BE INSTALLED AS REQUIRED IN ASTM D2321, LATEST EDITION. COMPACTION SHALL BE SPECIFIED BY THE ENGINEER IN ACCORDANCE WITH TABLE 3 FOR THE APPLICABLE FILL HEIGHTS LISTED. PLEASE NOTE, CLASS IV MATERIAL HAS LIMITED APPLICATION AND CAN BE DIFFICULT TO PLACE AND COMPACT; USE ONLY WITH THE APPROVAL OF A SOIL EXPERT. 6. MINIMUM COVER: MINIMUM COVER, H, IN NON -TRAFFIC APPLICATIONS (GRASS OR LANDSCAPE AREAS) IS 12" (300mm) FROM CSS I LA CLASS II CLASS III CLASS N PIPE DIA COMPACTED 95% 90% 85% 95% 90% 95% 1r 41 28 21 16 20 16 16 (300mm) (12.5m) (8.5m) (6.4m) (4.9m) (6.1m) (4.9m) (4.9m) 15, 42 29 21 16 21 16 16 (375mm) (12.8m) (8.8m) (6.4m) (4.9m) (SAND) (4.9m) (4.9m) to, 44 30 21 16 22 17 16 (450mm) (13.4m) (SAID) (6Am) (4.9m) (6.7m) (5.2m) (4.9m) 24" 37 26 18 14 19 14 14 (600mm) (11.3m) (7.9m) (5.5m) (4.3m) (5.8m) (4.3m) (4.3m) 30" 39 27 19 14 18 15 14 (750mm) (11.9m) (8.2m) (5.8m) (4.3m) (5.8m) (4.6m) (4.3m) 36" 28 20 14 10 14 11 10 (900mm) (8.5m) (6.1m) (4.3m) (3.0m) (4.3m) (3Am) (3.0m) 42" 30 21 14 10 15 11 10 (1050mm) (9.1m) (6.4m) (4.3m) (3.0m) (4.6m) (3.4m) (3.011M) 48" 29 20 14 9 14 10 10 (1200mm) (8.8m) (6.1m) (4.3m) (2.7m) (4.3m) (3.0m) (3.0m) 60" 29 20 14 9 14 10 9 (1500mm) (8.8m) (6.1m) (4.3m) (2.7m) (4.3m) (3.0m) (2.7m) THE TOP OF PIPE TO GROUND SURFACE. ADDITIONAL COVER MAY BE REQUIRED TO PREVENT FLOTATION. FOR TRAFFIC FILL HEIGHT TABLE GENERATED USING AASHTO SECTION 12, LOAD APPLICATIONS; CLASS I OR II MATERIAL COMPACTED TO 90% SPD AND CLASS III COMPACTED TO 95%SPD IS REQUIRED. RESISTANCE FACTOR DESIGN (LRFD) PROCEDURE WITH THE FOLLOWING FOR TRAFFIC APPLICATIONS, MINIMUM COVER, H, IS it (3001 UP TO 48" (1200mm) DIAMETER PIPE AND 24" (600mm) OF ASSUMPTIONS: COVER FOR 60' (1500mm) DIAMETER PIPE, MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT NO HYDROSTATIC PRESSURE OR TO TOP OF RIGID PAVEMENT. UNIT WEIGHT OF SOIL (ys) =120 PCF T. FOR ADDITIONAL INFORMATION SEE TECHNICAL NOTE 2.04. 8 REV. MAXIMUM LAVER HEIGHTS RAC Dt111H7 e10teAo&IIM. REV. DESCRIPTION BY I Mh1DNY'/ I CHKD ADVANCED DRAINAGE SYSTEMS, INC ('ADS") HAS PREPARED THIS DETAIL BASED ON INFORMATION PROVIDED TO ADS. THIS DRAWING IS INTENDED TO DEPICTTHE COMPONENTS AS REQUESTED. ADS HAS NOT PERFORMED ANY ENGINEERING OR DESIGN SERVICES FORTHIS PROJECT, NOR HAS ADS INDEPENDENTLYVERIFIED THE INFORMATION SUPPLIED. THE INSTALLATION DETAILS PROVIDED HEREIN ARE GENERAL TRENCH INSTALLATION I 13 TRUEMAN BLVD - RECOMMENDATIONS AND ARENOT SPECIFIC FOR THIS PROJECT. THE DESIGN ENGINEER SHALL REVIEW THESE DETAILS PRIOR TO DETAIL HP STORM HILLIARD, OHI043028 CONSTRUCTION. IT IS THE DESIGN ENGINEERS RESPONSIBILITY TO ENSURE THE DETAILS PROVIDED HEREIN MEETS OR EXCEEDS THE t ) APPLICABLE NATIONAL, STATE, OR LOCAL REQUIREMENTS AND TO ENSURE THAT THE DETAILS PROVIDED HEREIN ARE ACCEPTABLE FOR THIS MYNICED W1lWE8Y8iEN4M. PROJECT, DRAWING NUMBER: STD-101D Proffit Road Townhomes South LD-204 Stormwater Inlet Computations LD-204 Stormwater Inlet Computations Inlets on Grade Only Sag Inlets Only E Z c Q 'c m n o 15 N y C O E i N D N r U �O. y (IJ X _ F O X 7 IE Q U C 1 6 LU o O. LT a 2 C D. 0 F W CIa o a a U O 1 2 3 4 5 6 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 (it) (ac) (iNhr) (Cfs) (Cfs) (Cfs) (it/ ft) (it/ ft) (it/ ft) (it) (it) (CIS) (CIS) (it) (it) (it) A10 DI-7 0.42 0.44 0.18 6.5 1.19 - 1.188 0.020 0.04 0.040 0.16 5.08 0.18 4.0 0.73 - 0.731 0.020 0.12 3.95 A8 DI-36 12 0.92 0.80 0.73 6.5 4.77 - 4.767 0.013 0.02 0.030 8.16 0.24 77% 3.69 1.08 0.73 4.0 2.93 - 2.934 0.013 6.81 0.20 91% 2.68 0.26 A5 DI-3B 12 0.94 0.61 0.58 6.5 3.75 1.08 4.822 0.013 0.02 0.020 0.080 0.26 0.50 0.52 7.09 0.58 4.0 2.31 0.26 2.562 0.013 0.080 0.17 0.50 0.34 2.59 A4 DI-3C 12 0.69 0.80 0.55 6.5 3.57 0.00 3.566 0.013 0.026 0.020 0.080 0.30 0.50 0.59 8.76 0.55 4.0 2.19 0.00 2.195 0.013 0.16 0.50 0.32 2.06 rm, rm1 IIIIIIa�TLLi ©�� . IIIIIIIIIIIII[JfT� ��� - r•F LeT7GT•T� M " � ��-�- r■ ■� III■-Ill�llls ��•,•,_ ��:�IIIIIIIIIIIIIIIIIII■ ME DIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII■ II■����- il- Ir- • n E F■E131 �11�Ti�yl7 -- - I�i■fiLilwl rll liri NONE IIIIIIN 15+00 15+50 s STORM PROFILE A4-A6 MC9 VERT:1"=10' HORZ: 1"=20' 16+00 540 535 530 525 520 515 510 505 500 16+50 10+50 11+00 11+50 12+00 12+50 13+00 13+50 14+00 14+50 15+ 9 STORM PROFILE Al-A4 VER : _ C9 HORZ: 1"=20' SHIMP ENGINEERING LAND PLANNING I SITE DESIGN I CIVIL ENGINEERING I PROJECT MANAGEMENT Design Focused Engineering 912 East High Street Phone: 434d27-5140 Chello6esVIIM, VA U902 shimp-enginmiing.com SHI a Lie. o.451 �f )2 �SSJONAL VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.20 REVISION: 01) 2020.07.16 FILE NO. PROFILES SHEET C9 OF 12 18.041 C9 ACCEPTABLE FILL MATERIALS: STORMTECH MC-4500 CHAMBER SYSTEMS OPTIONAL INSPECTION PORT AASHTO MATERIAL MATERIAL LOCATION DESCRIPTION COMPACTION / DENSITY REQUIREMENT CLASSIFICATIONS FINAL FILL: FILL MATERIAL FOR LAYER'D' STARTS FROM THE PREPARE PER SITE DESIGN ENGINEER'S PLANS. PAVED D TOP OF THE'C' LAYER TO THE BOTTOM OF FLEXIBLE ANY SOIUROCK MATERIALS, NATIVE SOILS, OR PER ENGINEER'S PLANS. N/A INSTALLATIONS MAY HAVE STRINGENT MATERIAL AND PAVEMENT OR UNPAVED FINISHED GRADE ABOVE. NOTE THAT CHECK PLANS FOR PAVEMENT SUBGRADE REQUIREMENTS. PREPARATION REQUIREMENTS. PAVEMENT SUBBASE MAY BE PART OF THE'D' LAYER AASHTO M145' INITIAL FILL: FILL MATERIAL FOR LAYER 'C' STARTS FROM THE GRANULAR WELL -GRADED SOIUAGGREGATE MIXTURES, <35% FINES OR A-1, A-2.4, A-3 BEGIN COMPACTIONS AFTER 24" (600 mm) OF MATERIAL OVER TOP OF THE EMBEDMENT STONE ('B' LAYER) TO 24" (800 mm) PROCESSED AGGREGATE. _ THE CHAMBERS IS REACHED. COMPACT ADDITIONAL LAYERS IN C ABOVE THE TOP OF THE CHAMBER. NOTE THAT PAVEMENT OR 12" j300 ri MAX LIFTS TO A MIN. 95% PROCTOR DENSITY FOR SUBBASE MAY BE A PART OF THE'C' LAYER. MOST PAVEMENT SUBBASE MATERIALS CAN BE USED IN LIEU OF THIS - WELL GRADED MATERIAL AND 95 % RELATIVE DENSITY FOR LAYER. AAS14TO M43' PROCESSED AGGREGATE MATERIALS. 3, 357, 4, 467, 5, 56, 57. 6, 67, 68, 7, 78, 8, 8919, 10 EMBEDMENT STONE: FILL SURROUNDING THE CHAMBERS AASHTO M43' B FROM THE FOUNDATION STONE ('A' LAYER) TO THE'C' LAYER CLEAN, CRUSHED, ANGULAR STONE 3.4 NO COMPACTION REQUIRED. ABOVE. A FOUNDATION STONE: FILL BELOW CHAMBERS FROM THE CLEAN, CRUSHED, ANGULAR STONE AASHTO M43' PLATE COMPACT OR ROLL TO ACHIEVE A FLAT SURFACE33 SUBGRADE UP TO THE FOOT (BOTTOM) OF THE CHAMBER. 3.4 PLEASE NOTE: 1. THE LISTED AASHTO DESIGNATIONS ARE FOR GRADATIONS ONLY. THE STONE MUST ALSO BE CLEAN, CRUSHED, ANGULAR. FOR EXAMPLE, A SPECIFICATION FOR #4 STONE WOULD STATE: 'CLEAN, CRUSHED, ANGULAR NO. 4 (AASHTO M43) STONE". 2. STORMTECH COMPACTION REQUIREMENTS ARE MET FOR LOCATION MATERIALS WHEN PLACED AND COMPACTED IN 9" (230 mm) (MAX) LIFTS USING TWO FULL COVERAGES WITH A VIBRATORY COMPACTOR. 3. WHERE INFILTRATION SURFACES MAY BE COMPROMISED BY COMPACTION, FOR STANDARD DESIGN LOAD CONDITIONS, A FLAT SURFACE MAY BE ACHIEVED BY RAKING OR DRAGGING WITHOUT COMPACTION EQUIPMENT. FOR SPECIAL LQAD DESIGNS, CONTACT STORMTECH COMPACTION REQUIREMENTS. 4. ONCE LAYER'C' IS PLACED, ANY SOILIMATERIAL CAN BE PLACED IN LAYER D' UP TO THE FINISHED GRADE. MOST PAVEMENT SUBBASE SOILS CAN BE USED TO REPLACE THE MATERIAL REQUIREMENTS OF LAYER 'C' OR 'D' AT THE SITE DESIGN ENGINEER'S DISCRETION. ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE ALL nonl Mun nl vn Al I.. Icuon nAMHH N no .1^.U..AI n • d . nv.oe PERIMETER STONE (SEE NOTE 6) EXCAVATION WALL (CAN BE SLOPED OR VERTICAL) PAVEMENT LAYER (DESIGNED BY SITE DESIGN ENGINEER) INSTMIATIONSWNEFtERIRTINGM CIF RJEXIEILE PROM EXIMESAMY=UP, INCREASE COVER M WP E750 mm). 24" (600 mm)MIN* 12' (300 mm) MIN y W. (1525 mm) 7.0' (2.1 m) MAX DEPTH OF STONE TO BE DETERMINED ml II III II ml BY SITE DESIGN ENGINEER 9" (230 mm) MIN 12" (300 mm) MIN 9" MC3500 1W' (2540 mm) 12' (300 mm) MIN END CAP SUBGRADE SOILS (230 mm) MIN (SEE NOTE 4) NOTES: 1. CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2418-16a,'STANDARD SPECIFICATION FOR POLYPROPYLENE (PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS' CHAMBER CLASSIFICATION 6OX101 2. MC 4500 CHAMBERS SHALL BE DESIGNED IN ACCORDANCE WITH ASTM F2787 "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". 3. THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR ASSESSING THE BEARING RESISTANCE (ALLOWABLE BEARING CAPACITY) OF THE SUBGRADE SOILS AND THE DEPTH OF FOUNDATION STONE WITH CONSIDERATION FOR THE RANGE OF EXPECTED SOIL MOISTURE CONDITIONS. 4. PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THE EXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATION WALLS. 5. REQUIREMENTS FOR HANDLING AND INSTALLATION: • TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING, CHAMBERS SHALL HAVE INTEGRAL, INTERLOCKING STACKING LUGS. • TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL, THE HEIGHT OF THE CHAMBER JOINT SHALL NOT BE LESS THAN 3". • TO ENSURE THE INTEGRITY OF THE ARCH SHAPE DURING INSTALLATION, a) THE ARCH STIFFNESS CONSTANT AS DEFINED IN SECTION 6.2.8 OF ASTM F2418 SHALL BE GREATER THAN OR EQUAL TO 500 LBS/IN/IN. AND b) TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE 73" F / 23" C), CHAMBERS SHALL BE PRODUCED FROM REFLECTIVE GOLD OR YELLOW COLORS. UNDERDRAIN DETAIL NTS STORMTECH CHAMBER IRMTECH END CAP 'LET MANIFOLD J FOUNDATION STONE BENEATH CHAMBERS ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE STORMTECH END CAP FOUNDATION STONE BENEATH CHAMBERS ADS GEOSYNITHETICS 601T NON -WOVEN GEOTEXTILE -ITE DESIGN ENGINEER 4" (100 mm) TYP FOR SC310 & SC-16OLP SYSTEMS 6" (150 mm) TYP FOR SC-740, DC-780, MC-3500 & MC4500 SYSTEMS MC -SERIES END CAP INSERTION DETAIL 12" (300 mm) MIN INSERTION MANIFOLD STUB MANIFOLD HEADER NTS STORMTECH END CAP NOTE: MANIFOLD STUB MUST BE LAID HORIZONTAL FOR A PROPER FIT IN END CAP OPENING. CREST STIFFENING RIB VALLEY STIFFENING RIB WALL =ORATED L LOWER JOINT CORR. a BUILD ROW IN THIS DIRECTION 100.0" (2540 mm) RDRAIN MC-4500 TECHNICAL SPECIFICATION CREST WEB UPPERJOINT CORRUanTInAI FOOT NTS SECTION B-B 12"(300 mm) MIN SEPARATION MANIFOLD HEADER MANIFOLD STUB - RB 48.3" 52.0' (1227 mm) (1321 mm) INSTALLED NOMINAL CHAMBER SPECIFICATIONS SIZE (W X H X INSTALLED LENGTH) 100.0' X 60.0" X 48.3" - (2540 mm X 1524 mm X 1227 mm) CHAMBER STORAGE 106.5 CUBIC FEET (3.01 ITV) MINIMUM INSTALLED STORAGE' 162.6 CUBIC FEET (4.60 ERR) WEIGHT 130.0 Ibs. (59.0 kg) NOMINAL END CAP SPECIFICATIONS - SIZE (W X H X INSTALLED LENGTH) 90.2" X 59.4" X 30.7" (2291 mm X 1509 mm X 781 mm) END CAP STORAGE 35.7 CUBIC FEET (1.01 mI) MINIMUM INSTALLED STORAGE' 108.7 CUBIC FEET m (3.08 •) WEIGHT 135.0 Ibs. (61.2 kg) "ASSUMES 12" (305 mm) STONE ABOVE, 9" (229 mm) STONE FOUNDATION AND BETWEEN CHAMBERS, 12" (305 mm) STONE PERIMETER IN FRONT OF END CAPS AND 40% STONE POROSITY. STUBS AT BOTTOM OF END CAP FOR PART NUMBERS ENDING WITH "B" STUBS AT TOP OF END CAP FOR PART NUMBERS ENDING WITH "T' END CAPS WITH A WELDED CROWN PLATE END WITH "C" END CAPS WITH A PREFABRICATED WELDED STUB END WITH "W" PART # STUB B C MG450OREPE06T 6" (150 mm) 42.54' (1.081 m) - MG450OREPE06B - 0.86' (22 mm) MC450OREPE08T 8" (200 mm) 40.50" (1.029 m) - MC450OREPE08B - 1.01"(26 mm) MC450OREPE10T 10" (250 mm) 38.37' (975 mm) - MC450OREPE10B - 1.33" (34 mm) MC450OREPE12T 12" (300 mm) 35.69' (907 mm) - MC4500REPE12B - 1.55" 39 mm - MC450OREPE15T 15" (375 mm) 32.72' (831 mm) - MC450OREPE15B - 1.70" (43 mm) MC450OREPE18TC 18" (450 mm) 29.36' (746 mm) - MC45DOREPEI8TW MG45DOREPE18BC - 1.97" (50 mm) MG450OREPEIBBW MC450OREPE24TC 24"(600 mm) 23.05' (585 mm) - MC45DOREPE24TW M0450OREPE24BC - 2.26' (57 mm) MC450OREPE24BW MC450OREPE30BC 30' (750 mm) - 2.95" (75 mm) MG450OREPE36BC 36' (900 mm) - 3.25" (83 mm) MG450OREPE42BC 42" (1050 mm) - 3.55" (90 mm) NOTE: ALL DIMENSIONS ARE NOMINAL 90.2' (2291 mm) CUSTOM PRECORED INVERTS ARE AVAILABLE UPON REQUEST. INVENTORIED MANIFOLDS INCLUDE 12-24" (300.600 mm) SIZE ON SIZE AND 15-48" (375-1200 mm) ECCENTRIC MANIFOLDS. CUSTOM INVERT LOCATIONS ON THE MC-4500 END CAP CUT IN THE FIELD ARE NOT RECOMMENDED FOR PIPE SIZES GREATER THAN 10" (250 mm). THE INVERT LOCATION IN COLUMN'S' ARE THE HIGHEST POSSIBLE FOR THE PIPE SIZE. COVER PIPE CONNECTION TO END CAP WITH ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE STORMTECH HIGHLY RECOMMENDS FLEXSTORM PURE INSERTS IN ANY UPSTREAM STRUCTURES WITH OPEN GRATES CATCH BASIN OR MANHOLE SUMP DEPTH TBD BY SITE DESIGN ENGINEER (24" [600 mm] MIN RECOMMENDED) INSPECTION & MAINTENANCE STEP 1) INSPECT ISOLATOR ROW FOR SEDIMENT MC-4500 CHAMBER 24" (600 mm) HOPE ACCESS PIPE REQUIRED USE FACTORY PRE -CORED END CAP PART # MC45WREPE24BC OR MC450OREPE24BW MC-4500 ISOLATOR ROW DETAIL NTS A. INSPECTION PORTS (IF PRESENT) A.I. REMOVE/OPEN LID ON NYLOPLAST INLINE DRAIN A-2. REMOVE AND CLEAN FLEXSTORM FILTER IF INSTALLED A.3. USING A FLASHLIGHT AND STADIA ROD, MEASURE DEPTH OF SEDIMENT AND RECORD ON MAINTENANCE LOG A.4. LOWERA CAMERA INTO ISOLATOR ROW FOR VISUAL INSPECTION OF SEDIMENT LEVELS (OPTIONAL) A.5. IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3. S. ALL ISOLATOR ROWS B.1. REMOVE COVER FROM STRUCTURE AT UPSTREAM END OF ISOLATOR ROW B.2. USING A FLASHLIGHT, INSPECT DOWN THE ISOLATOR ROW THROUGH OUTLET PIPE 1) MIRRORS ON POLES OR CAMERAS MAYBE USED TO AVOID A CONFINED SPACE ENTRY I!) FOLLOW OSHA REGULATIONS FOR CONFINED SPACE ENTRY IF ENTERING MANHOLE B.3. IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3. STEP 2) CLEAN OUT ISOLATOR ROW USING THE JETVAC PROCESS A. A FIXED CULVERT CLEANING NOZZLE WITH REAR FACING SPREAD OF 45" (1.1 m) OR MORE IS PREFERRED B. APPLY MULTIPLE PASSES OF JETVAC UNTIL BACKFLUSH WATER IS CLEAN C. VACUUM STRUCTURE SUMP AS REQUIRED STEP 3) REPLACE ALL COVERS, GRATES, FILTERS, AND LIDS; RECORD OBSERVATIONS AND ACTIONS. STEP 4) INSPECT AND CLEAN BASINS AND MANHOLES UPSTREAM OF THE STORMTECH SYSTEM. NOTES 1. INSPECT EVERY 6 MONTHS DURING THE FIRST YEAR OF OPERATION. ADJUST THE INSPECTION INTERVAL BASED ON PREVIOUS OBSERVATIONS OF SEDIMENT ACCUMULATION AND HIGH WATER ELEVATIONS. 2. CONDUCT JETTING AND VACTORING ANNUALLY OR WHEN INSPECTION SHOWS THAT MAINTENANCE IS NECESSARY. WP2 MC-4500 END CAP 1 r: . TWO LAYERS OF ADS GEOSYNTHETICS 315WTM WOVEN GEOTEXTILE BETWEEN FOUNDATION STONE AND CHAMBERS 11(3.1 m) MIN WIDE CONTINUOUS FABRIC WITHOUT SEAMS EDGE OF USING FIELD) ' I EDGE DETERMINEDIN EELD)D) TACK COAT THE PROPOSED CONSTRUCTION JOINT EMSTNG ASIXIKT LAYERS PROPOSED ASPHALT LAYERS EXISTING SUBBASE PROPOSE. SUBBASE ---------------------------- COMPACTED SUBGRADE CONSTRUCTION JOINT DETAIL ® BMW EDSTING ASHIM.T LAWNS TO EXISTING SUBBASE AND REPLACE WITH PROPOSED ASPHALT WIDENING LAnn ® PROPOSED MNUM 1 % NCH THICK ASPHALT SURFACE COURSE (SEE NOTE 5) z MINIMUM 12 ACHES ON GREATER AS NECESSARY TO ABUT THE FUL THOMESS OF EXISTING ASPHALT LAYERS AS DETERMINED BY CORES (SEE NOTE 31 NOTES; 1. MITI PAVEMENT WIDENING SHALL NAVE A PAVEMENT DESIGN N MCODAICE WITH CURRENT VDOT PROCEDURES AND BE APPROVED BY THE ENOWER. 2. THE PAVEMENT DESIGN FOR ASPNRT PAVEMENT WIDENING SHALL MEET OR EXCEED THE DEPTHS AND TYPES OF THE LAYERS OF EXISTING PAVEMENT. AWSUR6/JE ORMUGE OF THE EXISTING AND PROPOSED PAVEMENT SHALL BE ADDRESSED IN THE PAVEMENT DESIGN. 3. A MlMll OF TWEE CORES SHALL BE TNREN ALONG THE CENTER OF THE MJKENT TRAVEL LANE TO DETERMINE THE TYPE AND THICKNESS OF MISTINGPAVEMENT LAYERS. THESE CORES SHALL BE SPACED NO MORE THAN 500 FEET MART. 4. THE MJ CENT TRAVEL LACE SHALL BE MUD A MINIMUM DEPTH OF 1 % INCHES CHES A REPLMED WITH AN MPHILT SmFME COARSE TO MATCH TIE PROPOSED PAVEMENT WIDENING SURFACE COURSE, UNLESS WAVED BY �IE ENGINEER. S. THE ENGINEER MAY SECURE THE MI DEPTH OF THE EXISTING PAVEMENT TO BE ADJUSTED TO ACHIEVE AN MCEPTAB E PAVEMENT CROIS-SLOPE AND EFFECTIVE SUERS GRAMME. B. EXISTING PAVEMENT MIRQIGS AND MARKERS WITHIN WE PROJECT LIMITS SHALL BE RESTORED SUBJECT TO THE APPROVAL OF WE ENGINEER. 7. FINK TRANSVERSE PAVEMENT TEHN SHN.L CONFORM TO THE REQUIREMENTS OF SECTION 315.0510 OF THE SPECIFICATIONS EXCEPT THAT ALL JOINTS AT TE-N LOCATIONS SNKL BE TESTED USING A 10 FOOT STRAIGHTEDGE N MCORDAICE WITH WE REQUIREMENTS OF SECTION 315.07(c) OF THE SPECIFICATIONS. ROM AND BRIDGE S srAw.en.s ASPHALT PAVEMENT WIDENING EET I OF 1 REVISION DATE FOR WIDENING SUBJECT TO TRAFFIC 3p3 p2 VIRGINIA DEPARTMENT OF TRANSPORTATION ASPHALT PAVEMENT WIDENING C 10 / NOT TO SCALE END -SECTION 12" - 60'' PIPE HUB ENO ON OUTLET ENO -SECTIONS SPMOT q/AX CONCRETE TO K E 4DD0 PIT MINIMUM PLANK L B OOI RR BM p 5 rgoc 1 A ( / D T E PAY OE GFCTIFIN Y-Y FNtT VIFW END SECTION DIMENSIONS PIPE DIAMETER A R C 12.. 4" 20" 2' 0" 4''0' 2'77 15., 6.. 2..3. 24.. y .. }.-T. 2,-6. W-Y, 4.-D.. 27•• 1p 4•-0' 2'.1•' 6••1. 4•-6- M.. 6. 424 1 5.-3.. T-11 a..2.. a..a.. 1.. 2.-p. 5_p.. 2.-2. a.-p.. p.p.. 54" Y-3" 5'-5" 2'-B a'-2 T-6 SDI. -,- .. - .. .... SPECIFICATION ALTERNATE END -SECTION 12'' - 60" PIPE HJB END ON WILES ENO sECipNS SPOOT END ON OUT EUD-SECTKN 1K 7 _-- • CONCRETE M E LL E JJ„ 4W0 P4MNYd/ PLAN �1 B DIETER Aoe.� DF PPE A X,, f PE STEEL FABRIC RVWORCEMENTJ A 4 A \ / E L END VIEW SECTION X-X END SECTION DIMENSIONS PIPE DIAMETER A B C D E 12.. 4.. 2' O' . 4-p. 6 .q.. 2 ..p. Ig•. y. 2' W 3.-p.. all 3'-0' 24.. RI 3..7, T V a..y. 4..0.. 2-7 'F.O.. 0 6'-Y "4-6 30" 4..6. Y.7 �. a..I .. S-11 6•• Yq" 5•-3• 2•.p •• a•- a•-0•• 4 " 1•-B• 5'-3' "H. B.-2.. 1.-1. 4V T 0. E.L. 2..2.. 6'-2.. 7-0- 2'-3- 5•.5 2.IH B•-4 7'-6- 3,.y., y.. 6-01 PAY lNE NOTES PIPE LENGTHS SHOWN END -SECTION P GNB ME BASED CN T.FTHEC DESIHITRAC SHOWN ON THE THE F THE CONTACTOR SHOWN CIM TO USE THE N THS WILL DESIGN SHOWN O1 THE ORIGHTTTE LENGTHS WILL E REMICEO BY LIVE DETEIENCE M OMENSNXI 'D". SHIMP ENGINEERING LAND PLANNING I SITE DESIGN I CIVIL ENGINEERING I PROJECT MANAGEMENT Design Focused Engineering 912 East High Strmt Phow 434227-5140 Chanottesvilk. VA22902 shimp-¢ngirm Enng.LOm SHI Lie. o.451 _11�SS IONAL t__f VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.20 REVISION: 01) 2020.07.16 FILE NO. DETAILS FLARED END -SECTION FOR 1211-60" CONCRETE PIPE CULVERTS ]02 VIRGNA DEPARTMENT OF TRANSPORTATION 2 ES-1 D: C 1 O NOT TO SCALE SHEET C10 OF 12 clo l \ � --- --- 532— \ 530 / 53 — — — OFFSITE AREA \ / I v 6> - 534 536 - — Dense Trees \ I\ \ — — \ \ GV I \ I \ \ 0 o \ H D u SOLE N OH U \ c w 8 ti \ yea (RE z��T) I ELL TB = =1 III -III — I=III=1 — II-1 I // J_ \ 532 =11 I-11-1 I I I I X I 00 I I I-1 I I;!E1 -III-III - O I / EX. WM TO BE REMOVE ABANDON CQN ECTION III —III —III —I A MAIN \ II S3 II=III=III=III Z I m ( \ 1 \ POA d � p S30 I vv / / vv � CS! :t7 \ TREES TBR \ \ \ 0 TREES TBR \ \ \ \ I I I N� SHIMP ENGINEERING \S26 \ I 0) Z \ I \ I \ \ LAND PLANNING I SITE DESIGN I CIVIL ENGINEERING I PROJECT MANAGEMENT co 0 ➢ I I\ o r \ Design Focused Engineering G ^ lSJ \ \ 912 East High Strest Phone: 434227-5140 Chanottemile, VA U902 shimp-engineenng.com I IME OF CONCEN o CA 522 _ o c9 A 0 18.0 MINUT _ o see / VCDA v . SHI a Lie. o. 451 SSIONAL E ti \ S24 _ I %EES TBR— �— VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD Dense,T�ee III=III11 = _ _ _ - I ,' I I ', TOWNHOMES _ _52A IRON _ _ I — FOUND = _ — III— —,II-SOUTH III = _ -----------_____ _____ _ I II — _ SUBMISSION: - _ - - - 2020.03.20 REVISION: 01) 2020.07.16 3 532 — — I � i FILE NO. \ \ OFFSITE AREA I I\ \ I 18.041 I c 0 0I\ `\\ \ PRE -DEVELOPMENT r/ Z \\ �q \ \\ DRAINAGE \ I \ SHEET Cl OF 12 20 0 20 � 0 � , so c 11 Scale: 1 "-20' POA ONSITE OFFSITE ACRES 3.09 0.52 CN 64 61 J I� \mm POLE OHU H 0 H 528 \ I I — 526 t \ IRON s FOUND V (\ �, %\ v \\ % � \ \ Q % �� (,o V \ \ \ % X \ =1 m I_ I-1 co 11111 \\ � III- ST MWATER CALCULATIONS \ \ -WADER QUANTITY \ 532 534 - — — —— 1 \ \ \ \ I ` \\ \ I ----�____— —532——�\ � \ `— Dense Trees \ \ 530 / \ \ � 53 OFFgITE AREA 536 '2980 AC / l \ I / 530 -� GV \ I/ POLE F"J OHU U H U 0 H 528— H d r H l r' l O L — G FS C RV=0.299AF - 58 \ --- IRON v S FOUND k k k, k A- \k k k �\� A- y �\ k k X k k k k k A- TESTES k k k e \\ k'd� k k k` A- k k\ k k k k k k l A- k k k A- k k k\ A- 3`\ T. FLOW FOR EQA NALYZED AS IT LEAVES THE SITE RATHER k L®T 31 k k k\ k k\ k k \ A- k k k\s�k k k k A- k k k A- k k A- k k k k k �I k k k, \ I THAN AT Jai€ OUT ET�� STORM -PIPE Al FOR EASE OF \ k FFE 5�7.5� k k l k k k k \ k k A k k k k k k k / k A- k k A- A- \ CALCULATION. NO ADDITIONAL WATER IS COLLECTED AFTER V� k k k k k k k \ A- k k \k A- k\ k k k k k -7 k k k k k \ I / STOF�dviINLET A4. k \ k k � k A. -V k -< 2. *� E OF CONCENTRATION FLOW PATHS NOT SHOWN. ALL k k k k\ k k k A-\ k k k k \ k \ k k k l A- k �\ \ ` A SUMED 5 MINUTES_ - k k X A- k.. \ �. ALL SOILS 27 ELIOO�R tOAM-- 2 TO 7% SLOPES, HSG 3. k k L T' O k k k kk \\k k k A- k k k\ k k \ k k A- \\k k 34� A- k k A- k \l k k A- k k k k k k\ k k O I\ _ l i k F 27.5 k A\ k �\ A- k \ k k k k k A- �k A- k k k k \A- � \�\ A_ k \ k 8 L9T� 32 LtTk33 LO\T 34 E\T 35 LQT 96 LO1 3 LOT 3 L T 39 LOTS 40 k A- / FFE�531�0 F E 531.E FE 5M.0 FF y53 0 FFE 5'34. k FFIs 535. -FFE 534. F 534. FFE 53 k k k\ k WATER QUALITY X k k\ k \ k 3 k k l k k k k - k A- A- A- / 0 k k \k k \k k k k\ k k A- k \k \k k k k A- _ k k o. TREATED L6T k29 k \ k \ k k A- \ k k k k k/ k k k so k k'- k/�k k I 1.441 AC TURF k k\ A- k A- k \ k k k \ k k k k / k - 2 k k k l\ - I 1.90\ AC IMPERV FEE 527.E k A\ o k k k k A- k k - -.0 \ k k \ k k k\ kk k\ k \ k k k \k k k k k I k k A- A- A- A- \ A- k k \ k k k J D k 53 A- A- h kl - I - 00 _ \ k k \ k 3� k k k m o k\ 2 k k k 30. k I/- �� \ k LOT 28k k k k \ k k k A- k A k \k k k k \ k k k k k k k j/ k k k k �,IZ k k k ,o k A k k 1 1 AQ k k A- k k A- \ k k k k\ k A- ��p A\ k A- A- k k % A- k k- .01k k - A- A k\ A- A. — v \ k k \ k k \ k k k k/ k �_v k k� k k k A- 71�k k ko k k._ x k \a k a \k \ ° e-. - o k k k k k°�' kso k j 4OT 27k k k b� X A- k k A- k \ k A- k k k/ k / k k �� 1 1 FEx527.0 k a k A- A- 2 A k_ / k / k A- k k I k` k \ 'k< k k k \\ k k \\k k k\k k \, A- k /k k k o k1 A- A- k \H k k .. k \ k k A- k\ k k k k \� k k k A- k k� A-\ k k k k k k k v k k k k k. ak A- A, 1 1 �\ k�\ kk: 77 �� - �k �� k Q k /k k k k k\ PO' �i 627 \k\ k 0\ k \�6 k k\ X k \ A- s7 k\ k k d' k/ k\ i/k A- k 0 \ A- L k� k \ p Q 1 \ k A- \ 6 �RI�IAT i �D Ak k l� \` - k�� k k 535.E 5 5'36 HP S k \ l p 3 k k \k F EOk k k \ 1 520-o \ k � k k O_ ✓. A- k 34 k\ k k k k k k k k �k o ^A. k 12 D 1- 3 C W �► k ka k o 36 �/ k k - k k k/k k� k k k k ss k k k N11 L O\ \\ \ EIR � �� k \. k A \ - A- .k / A` k A- k 3J k k \ k k °Q �LAYk I l \ \ k k �- A- q. k k k k\ k k A- \ \ N p k L®T 22 k k A- e k k k k �\ k k s .. a. a. k A- k k k �I k \� k k OT g5\5k k k \ a G \ 1 \ k FFE 5k26.5k A- k k \ k k k k\ k k O R Ai, k k g k k A- ko k k \ A- FE A- \ I I I 11 I 20' D AI AGE A- k k k A\ k LOTk \ \k E SE ENT k k k LOT 16 \ k ` FE 531 k k \ k k y. k. SHIMP ENGINEERING k \k k k k k k k \ k I \ k Ok k kFFE k528k0 \ k 52 X k k k k G k k \ ANDP ANNINGISRE DESIGN CIVIL ENGINEERING PROJECT MANAGEMENT k T3 k k k k k k l \\k k k k\ e k k k X. k k k k k k k k➢k k kI LO (k3O k Al �\ ok \ 1\ \\ Design Focused Engineering L0k A- b k A- k 41 a-- k k k k k k 53K5.5 A- o 912 East High Street Phone: 434227-5140 FFE 26.5 k n k k \ - - ° k I FF \ \ Chadottemile, VAU902 shimp-engincerng.mm k k k k k / k k A.. k X \kL ET 0 k k k k k \I \ \ A --- \F 532A- A-4 a k 7� O T 17k k k. k A-'\F k k k A- A- Tk k k k k k k /k k k FE�528Ok k \k - y k k P A- \ k k A- k k kI\ k FFO53 k k k o \ \\ / k LbTk24 k -- k k�k - A- k\ 075Et 7Et k X k k \ND\2-)O k k k - ESE 527> s2 k 0 A k / k - k k D r k k k CN k Y� o \ c9 \ \ / A- / k A- k k A- k k/ o k 1 O�k A- k k k k°. k k kk LOik 1 ° k k l J NSPECTI FE k k / k A- A- k A- A- k k �FEk 52 .0 y V� \ -9 A- PORT k y A- k k k k A- A- r k k k A- k A- k s .s' s k A- / k k k d k o k o \\ v SHl a / k LOT 25k k A- k k k k k k k k k k k\ k k k k A-/ k k k k.°` Lic. 0 451 z k / A- FFE �27.0 A- k k A- k k k k k k kl l k k k A- k k k I k k k �LO�T 1 9F k k A- / k l k k k k � k �` k k k° � n � k � k k Of 535 k\ k k / k k k = A- A- k k k k FFE 52j.5 o k k can k o A- FFE k k Ik k A- k k LO )A \ k>\ �F�SS�ONAL E ti k k 24 k k k k k k k / k k k k k k/ k k k w k F535 k A- -A, o k \\ \ N k LOT 2\ A- k A- �k kTI k k. k A- k l k A-/ k k k k A- A- I \ f FE 27. kA- ( "I 3 k / A- IA_ 1 A- k A- k.' \ k k k k k Olk 2x0 /k/ k k k I� 5 /k A- k �k--- -/ / k` k Jk k F� 5�8 �k iY°. k k� k k k k y k kFF \ K 3\ / k / k k k k L�T 5 k 11 I ✓ �� k k k k k ,' VSMP PLAN z I k A- k k k A_ Ik k k k FFE � �/ k A- a k 1 ALBEMARLE COUNTY VIRGINIA A- ��r k A- k k /k k k k k k A- k �° I p p - V _ k A- k k k k k k k X• k - k LO� k k k A- k k k A- k I PROFFIT ROAD __ A- FFTE °k k k k k TOWNHOMES Den 5e �T�RON 52� � LOST 1 k k k AI AGE EA'SEMENTk k k � k 53 _ k 26 k k FE 52_.5k k k k k .k k k k� k // k� 7 5 k k a. aA- = I FOUND - k k k A- - - X-- A- �s k k Al k A- k k k( k F 53`� A- k e A- I I I SOUTH - _"-� - a - k- JOT �j k k k k k k k k k k \ k k533'� k k \ k A- t, I k v' I I SUBMISSION: � FFtT _ k 73 97HP k O 34.Ok k � k I 2020.03.20 k k � k <:k � 1 k 32 k k k k .- � / REVISION: k \ 11 01) 2020.07.16 �2� � // ❑ n ^ _ k a p4' ONSITE AREA 3 2.7673 AC OFFSITE AREA \ \ c 0.1909 AC \ \ 1 532 — — LEGEND \ 1 \ \ I FILE NO. ®OFFSITE TO STORMTECH MC-4500 \ \ 1 I g \ \ 18.041 SYSTEM TO BE TREATED0 ONSITE TO STORMTECH MC-4500 \ / 1 c SYSTEM TO BE TREATED / \ \ , POST -DEVELOPMENT OFFSITE TO POA 1 NOT TREATED a \ �� \ \ DRAINAGE TTREATEDONSITE OPOAI NOT Z Q \\ II \ SHEET C12 OF 12 20 0 20 � 0 so I , C12 Scale: 1 "=20' — 0NShT€ OFFSITE TREATED UNTREA M TREATED UNTREATED ACRES 2.74_ 0.354 0.22 CN 86 61\ 61 61 Section 5. Stormwater Management Plan Concentrated onsite runoff shall be routed via new storm drains into an underground detention system which will release runoff at rates that comply with the energy balance equation 9VAC25-870-66-B(3). Water quality will be addressed by this detention system in combination with the purchase of nutrient credits. The StormTech MC-4500 Chambers with an Isolator Row achieve 40% phosphorous removal — leaving 1.37 Ibs nutrient credits to be purchased. Runoff from the site will be released at rates that comply with the energy balance equation set forth in 9VAC25-870-66-B(3). The calculations are summarized in the table below. Please note that a small portion of the drainage area to POA is from offsite. The flow from offsite was included in the energy balance equation. The proposed storm sewer will outlet into an existing channel further downstream. Section 6. Pollution Prevention Plan. A. Plan showing pollution activities and prevention practices POLLUTION PREVENTION PLAN PROFFIT ROAD TOWNHOMES SOUTH 1. LIMITS OF DISTURBANCE TO BE MARKED IN THE FIELD USING FLAGS OR PAINT. 2. POLLUTION PREVENTION ITEMS SHOWN MAY BE REARRANGED IN THE FIELD, BUT MUST BE MARKED ON THIS SHEET. — 526 �---- 526 'ANCE\SUM \ \ 482.68' Cn \ OUN 2 58 I RON FOUND,Q�pOPOSED ROW ? \ \\ ��(y'EDICATION 35,5'JMDTH LOT 31 A S 1 / A I ■ I FROM ROAD .OL FFE 527.5 \ 24 ® LOT 30 \ \ \ \\ 34 \/ \ \ $\\ \ DI s N— A -FFE -527.5 \ \ \ \ / ' s ? IOT 32 LOT 33 LOT 34 L T 35 LOT 36 LOT 3 LOT 3 LOT 3 LOT 4 \ ` $ I 1/ FFE\531. FFE 531. E 533. FF 534. FFE 534. 32 FFE 535. FFE 534. F 534. FFE 533. 2 F _ STE L \ LE V I I K FFE 527.0 v �f \V \\ �� / 30 \s2 \ FOE 5270 T 28\\ \\\ \ 2g \\ �� / / Al`x'^Ci µ: 1 �11 1 2 /\ II f '. � '.'•.. .. :\ .,. . ' ... \. LOT 27 ,. FFE 527.. c I w W -X e"rpJ-\1: �-w de—w W w w w ow 1111 \ 8" DI SAN zi o 6 ° DI SAN \ ®o f TIT, \I �\ 520 j _ 3 f .. 1 \ LP�.CATION \ _ _ \ ■ A3 12 DI-3C W A4 �F .. ".',: Y: ".. :. ... .. \ � 0 Alf WEIR WALL F \ \ q A7 I \\ 1'0 \ LOT 16\\ ��• +� /+ a FFE053.5 A FFE I 0 Y 1 1 ELEV 51 80'v28• FFE 528.0 \ 5f ' �� 1 1 cS� \� I ELEv s1s.o• � � \ x ,z!+ ,-t I LOT 3 0 g c9 \ m 535 5 NSTALL SCc` LOT 10 FFE LOT 17 '�- MATING PER 1 4FE 532.0 gl z IQ \\ 528.0 \\\ +�Ltt/CB \\ I\ FF�535.9 pSTOCMUE � ■■■ v — _ . — . _ . _ FIFE 92895 / \ F 532.5 \\\ 1 sx / L0535. E•• $ I \\ - A U LOT 26 524 F x / I W FFE 0 FFE 5270 13 FFOET532.5/ I/� g I 1` g 1 1 ■ \ -' T 1� LO 534.5 11 � 1 I f / � F� / I I vl LOT 1AD £ g : ml 1 DerS��TreRON _ fi 4 L FFE 53F5' 11 SOT 7 _ I 1 nll 1 I •'..�.\ _ - - '1 m s FE 5345 i 1 FOUND - --- \ F _ 15 A _---------52$■■Ta_oe FFT E 533.0 \ s \ 8 $ GII / I ■7CE------- 73 aTw 34.0 .L' I . ml I 1 IR_ szs•o6'ss"w lasso mZl 5 _ Dense Trees • —L 53 — Q J IRO\\ e FOUND g'Lcl p�— — — — — — — 532 r/ CCfi 1 \\ I -G SOIL EROSION S SEDIMENT CONTROL SYMBOLS .Eo xo nIE nEY rox wxmurnw oxnuxa (MANN M 1"ll � xin wu, mmncnw AA5 ar oisunaNKc POLLUTION PREVENTION PLAN SYMBOL ACTIVITY PROTECTION 91 PAVING OPERATIONS CONCRETE WASHOUTAND ® CEMENT WASTE STRUCTURE Q CONSTRUCTION .STUCCO, PAINTING. AND CLEANING DEWATERING Q OPERATIONS MATERIAL DELIVLIVERY AND STORAGE ® MATERIAL USE DURING BUILDING PROCESS WASTE ®SOLID DISPOSAL SANITARY WASTE LANDSCAPING OPERATIONS © WASH WATERS VEHICLE AND EQUIPMENT WASHING ON -SITE FUELING B. Sources of Pollutants, locations, and prevention practices Pollutant, or Pollutant Location on site Prevention Practices, Generating Activity Control Measures Follow Erosion and Sediment Control Clearing, grading, excavating, and on- Land disturbance area Plan. Dispose of clearing debris at stabilized areas acceptable disposal sites. Seed and mulch, or sod within 7 days of land clearm Cover storm drain inlets and use drip pans Paving operations Roads and driveways and absorbentloil dry for all paving machines to limit leaks ands ills Direct concrete wash water into a leak - Concrete washout and Current location and detail shown on proof container or leak -proof settling basin cement waste plan that is designed so that no overflows can occur Enclose or cover material storage areas. Mix paint indoors in a containment area or Structure construction, stucco, Structures in a flat unpaved area. Prevent the painting, and cleaning discharge of soaps, solvents, detergents and wash water, paint, form release oils and curing compounds. Water shall be filtered, settled or similarly Dewatering operations Dewatering sites shown on plan treated prior to discharge as shown on plan. Designated areas for material delivery and Material delivery and storage Designated area shown on plan storage. Placed near construction entrances, away from waterways and drainage paths Material use during building process Building areas Follow manufacturer's instructions.MSDS's attached. C. Sources of Pollutants continued. Common activities and minimum control and prevention practices Pollutant, or Pollutant Location on site Prevention Practices, Generating Activity Control Measures Waste collection area will not receive a substantial amount of runoff from upland areas and does not drain directly to a Solid waste disposal Current designated container areas on waterway. Containers have lids covered plan before periods of rain, or are in a covered area. Scheduled collection to prevent overfilling. MATERIALS NOT TO BE BURIED ON -SITE Convenient and well -maintained portable sanitary facilities will be provided, and Sanitary waste Current locations shown on plan located away from waterways or inlets. Such facilities shall be regularly maintained. Apply fertilizers in accordance with Landscaping operations Landscape areas shown on plan manufacturer's recommendations and not during rainfall events To be treated in a sediment basin or better Wash Waters Wash areas shown on plan control as specified on plan. Minimize the discharge of pollutants from equipment and vehicle washing Vehicle and equipment washing Designated areas and details shown on Provide containment and filtering for all plan wash waters per the plan Provide double walled tanks, a lined Fueling Fueling station containment area, drip pans, and spill prevention and cleanup materials. Liquid Spills Current location shown on plan Spill Kit readily available Minimization of exposure to precipitation and stormwater. Minimize the exposure of building materials, building products, construction wastes, trash, landscape materials, fertilizers, pesticides, herbicides, detergents, sanitary waste, and other materials present on the site to precipitation and to stormwater. (Identify all non-stormwater discharges to occur on your site. Keep this plan up-to-date with ongoing site changes and inspections. See CGP, 9VAC25-880-70 section E for examples of non-stormwater discharges.) D. Allowable non-stormwater discharges Discharge Pollutants or Pollutant Constituents Location on Site Firefighting activities Fire hydrant flushings Equipment wash waters Dust control waters Potable water sources Building wash waters Pavement wash waters Uncontaminated air conditioning condensate Uncontaminated groundwater Footing drains Excavation dewatering Landscape irrigation E. Persons responsible for pollution prevention practices Owner of Record Albemarle Land LLC 1949 Northside Drive Charlottesville, VA 22911 F. Response and reporting practices Minimize discharges from spills and leaks. Minimize the discharge of pollutants from spills and leaks and implement chemical spill and leak prevention and response procedures as follows. To the extent practical, do not store oils, chemicals, or other potential contaminants on site. When storage of potential contaminants is required, provide secondary containment, such as spill berms or spill containment pallets. These should be located within the drainage areas to a sediment trap or sediment basin. Direct concrete wash water into a settling basin, dispose of hardened concrete with other construction waste debris to an appropriate waste facility. Respond to all spills, leaks and discharges as follows. Spills of oil, petroleum products, sanitary wastes, and substances listed under 40 CFR parts 110, 117, and 302 should be cleaned up as soon as possible while protecting worker safety. Construct an earthen dike around any spills on dirt to prevent spreading. If a spill occurs during rainfall, cover it with a tarp or another impermeable cover to prevent contaminating runoff. Do not bury any spills or wash them with water. Maintain a spill kits in a readily accessible location. A spill kit shall consist of a lined drum with bags of universal sorbents in the bottom, accessible without tipping the drum, sorbent socks above the bags, and personal protective equipment on the top. All materials used to remove the contaminants, including any water used to rinse equipment, and all dirt removed must be treated as contaminated. Textiles, such as from coveralls, may be sent to a certified laundry facility. Waste must be disposed of according to the standards of The City of Charlottesville and the Commonwealth of Virginia. Store hazardous materials and wastes in covered containers. Report all spills, leaks and discharges as follows: All spills, leaks, and discharges shall be recorded in the inspection logs. If construction activity results in a discharge of contaminants that may be reasonably expected to enter surface waters, the operator shall notify the Department of Environmental Quality immediately or within 24 hours, and shall submit a written report within five days. For significant spills that cannot be controlled by personnel in the immediate vicinity, notify the local emergency response by dialing 911. The City of Charlottesville must also be notified, and potentially some of the following agencies: the Fire Department, the Public Works Department, the Coast Guard, the Highway Patrol, the County Police Department, Department of Toxic Substances, OSHA, etc. For spills of federal reportable quantities, in conformance with the requirements in 40 CFR parts 110, 119, and 302, the contractor should notify the National Response Center at (800) 424-8802. G. Pollution Prevention Awareness The engineer, project superintendent, and contractor shall have weekly meetings to review on -site conditions and advise contractor of potential risks that should be addressed. Contractor will be responsible for following procedures on a daily basis and applying appropriate waste management and prevention practices to be in compliance with the conditions of the general permit. Employees shall be informed of the danger to nature and to human health of various chemical spills. Section 7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload allocation, and exceptional waters. The site discharges to the impaired water body South Fork Rivanna River. Causes of impairment are Benthic- Macroinvertebrate Bioassessments. Site work shall be in compliance with the following requirements: 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. In accordance with Part I B 4 and Part I B 5, inspections shall be conducted as follows: I. 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 48 hours following a measurable storm event. In the event that a measurable storm event occurs when there are more than 48 hours between business days, the inspection shall be conducted on the next business day; and II. Representative inspections used by utility line installation, pipeline construction, or other similar linear construction activities shall inspect all outfalls discharging to impaired waters. Section 8. Qualified personnel The following personnel are responsible for inspections; Justin Shimp, P.E. Shimp Engineering, P.C. (434)227-5140 Virginia Professional Engineer license 0402045183 Section 9. Signed Certification CERTIFICATION "I certify under penalty of law that I have read and understand this document and this document and all attachments were prepared 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." Owner/Operator Name: Company: Title: Signature: Date: Section 10. Delegation of authority. Delegation of Authority I, (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 Proffit Road Townhomes South construction site. The designee is authorized to sign any reports, stormwater pollution prevention plans and all other documents required by the permit. (name of person or position) (company) (address) (city, state, zip) (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: Company: Title: Signature: Date: Section 11. General permit copy (to be included with final SWPPP) Section 12. Inspection logs