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WPO202000017 VSMP - SWPPP 2020-03-23
Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: Project Name: Proffit Road Townhomes South Location: 3226 Proffit Road Charlottesville, VA 22911 Prepared by: Shimp Engineering P.C. Prepared for: Albemarle Land Development LLC SWPPP Preparation Date: 03/20/2020 (This document is to be made publicly available according to 9VAC25-880-70, Part 11, 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 VIRGIfYIA UEPARTMENT OF ENVIRONMENTAL QUALITY GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION AC7i11f7iE5 (VARIO� REGISTRATION STATEMENT 2019 NEW ISSUANCE MODIFICATION WITH ACREAGE INCREASE El Existing Permit Coverage Number (if applicable, AR O#### #), Section 1. Operator/Permittee Information. RE -ISSUANCE M FOR OFFICE USE ONLY M Number, Technical Criteria.- 118 D K a MODIFICATION M111THOUT ACREAGE INCREASE 0 A. Construction Activity Operator (P f itf . The person or entity that is applying for permit coverage and Sri Ell have operational control over construction activities to ensure compliance with the general permit. A person with signatory a uthority for this operator m u 5t !;Ign, the certifica tionin Section V1. ( per part I 11. I . of the VAR10 permit). Construction Activity Operator Name; A. Contact person:f2m_e) Address: )qn- Nork idLa d3e, City, State, Zip Code: C grlD�65 Sfi 4 Phone Number: Primary Email: {'�+�"' �_ �'t�t�1S 4 Lj6 bwkinG . CaY�'1............................. . ..... . ................ CC Emait Wing Inf rmation (leave blank if same as the Operator identified ire Section 1, A. above), This entity will receive Annual permit Ma i ntena nce a n d Ile rmit Modification Fee i nvoices (if applicable). Name: Contact Person. - Address: City, State Zip Code: Phone Number: Primary Email: CC Email: May we transmit correspondence electronically? You must ch005and inctude a valid email in order to pay by credit card and to receive your permit coverage approval setter via a rnai li YESX NO 0 Rear 04/2019 PAGE 1 1 7 CONSTRUCTION GENERAL PERMIT ( 10) REGISTRATION STATEMENT 2019 Section 11. Construction Activity Location Information. Projectsite information. A. Include a site map shoring the location of the existing or propoied land -disturbing activities, the limits of land disturbance, construction entry noes and all water bodies rEceiving s'torm at r discharges from the site. B. Construction Activity a • Address: City and/or County and i p Die: Latitude and Longitude (6-digit, decimal degrees format): C. Construction Activity Entrance Location (description, street address and/or latitude/longitude in d cirnal degrees): VA ZZg1 IzZ. ` 7 S., 11'31 LP 2_,Q 38. 13133`�, - 78. `-Is 1"11 I Sect I o in Ill. offsite Support Activity location Information. List ail offsite support activities to be included under t h I' permit registration. Enter additional areas on a separate page. Gffslte areas not included on this registration may reed to obtain cGvera a under a separate VPDES permit.. A. Offsite Activity Flame: Address: City and/or County and Zip Code: Latitude and Longitude -d i it, decimal degrees format): 3, Off s it e Acti v1tV E ntra n ce locat io n (description, street address and/or latitude/longitude in decimal degrees),, Section IV, Site Informatiom M Acreage t tais for all land -disturbing activities to included under this permit coverage; Report to the nearest one -hundredth of an acre. Total la nd a rea of development (inr-lu d inn the entire area to be disturbed as approved in the Stormwater Management plan): PrimarV estimated area to be disturbed (portions with Erosion and Sediment Control Plan approval only): ffske estimated area to be disturbed (if applicable): C. Propel Owner Status'. ICY Nature of the Construction Activity Description � I.e commercial, i ndustria .j residential, agricultural., environmental{ C. Municipal Separate Storm Sewer System (M54) name (if d ischa rging to a M ) f B. Estimated PrioJect Dates MMYYYY) Mart date: Completion date: FEDERAL 0 STAB C] PUBLIC D PRIVATE Rev 04/2019 PAGE 2 17 CON TR CtION GENERAL PERMIT J R10) REGISTUTION STATEMENT 2019 F. Is this construction activilty part of a common plan of development or sale? YES 0No)� G. 61h Order Hydrologic Unit Code I and Receiving Water N rn(), Attach a separate list if needed. HUC 022N UNIJUZD 3 Section V. Other Information{ RECEIVING WATERS D ( ) Fmk V-i d" Ka V-i A. t rmwater pollution prevention plan WPPP) must be prepared in accordance with the requirements of the General V P D ES Permit for Discharges of St ormwa te r from Ca n str ction Asti itie s orior t submitting the Registration Statement. By signing the Registration Statement* the operator is certifying that the SWPPP has been prepared} Has an Erosion and Sediment Control Plan been submitted to the VESCP Authority for review? YES W NO 11 Erosion and Sediment Control Plan Approval Date (for estimated area to be disturbed).: C. Has lard disturbance has commenced? YES 0 NO I D., if this project is using approved Annual Standards and Spedifications (), attach the complieted AS&S Entity Form. AS&S Entity Name (if different from the Operator identified in Section I I + A � � : SEE THE FOLLOWING PAGE FOR SIGNATURE AND CERTIFICATION REQUIREMENTS AND INFORMATION Rev / 019 PAGE 3 1 7 CDltitSiRUCTION GENERAL PERMIT (VARIO) REG157RATlCiN STATE 11t#ENT 2019 Section A Certification. A person representing the operator as identified in Section 1, A. and meeting the requirements of 9 A -o- 0, Part III, K must physically sign this certification. A typed signature is not acceptable. Please note that operator is defined in 0- follows: "Opemtor" mea ns th e o wn er or opera tot of any facility or activity subject to the Act and this chapter. fry the can text o .5torm wo ter associated with a large or small construction activity, operator meons any person associated with a const'ru ction project that meets either of the folio Wing two criteria. (i) the person has direct operational control aver construction plans and 5peciftations, including the ability to make mod;fications to those plans and specifications or +i the person has day-to-day operational control of those activities at a project th a t are necessary to ensure compliance with a storm wa ter p ollution pre Oren tion plan for the sl to or other state perm it or VSMP oath arity p ermit condition s tL e, they are out oriZed to direct workers at a site to carry o ut actIvi ties req uired by the storm pro ter p oil tion pre Ve tion plan or comply %Wth o th er permit conditions). In the co n text of s torm water discharges from Municipal Seporote Storm Suter Systems ( 4s)O operator means the operator of the regulated MS4 system. 9 AC2 5-8 8G-70, Part iIi. K. Signatory R eq u i rem ents. Registration Statement. All Registration Stotemen ts shall be . ig n ed asfollows: u.. For a corporation., by a responsible corporate officer. For the purpose of this chapter, a responsible corporate officer moons fr) a president secretary., treasurer, or vice-president of the corporation in charge of a principal business function, or any other p h e performs similar icy-m oking or ecrslon-making fun ctions for th a corpora tion; or (rr) th a manager of one or more manufacturing, production, or operating acilltl s, provided the manager is authorized to make management decisions that govem the operation of the reguiated faciffty including having the explicit or implicit duty of making major capital investment recommendations, and instating and directing other comprehensive measures to assure long-term complion ce with en viron mental to ws and regulations; the manager con ensure thot the necessary sy -te ms are estobushed or actions taken to goth er complete and accuro to information for s oto permit application require ent5 an d where auth Ority 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 municipo ft state, federal, or rather public agency: by either a �rinc'al exectitive officer or ra�nkln elected official. For purposes of this ch ap ter, rncIpa I executive`c r of ac agency cs 4-the chief executive officer the agency or ff a son Or execu ti ve officer h a'viog responsibility for th a overall operatic ns of a principal goo raph;c u nit of th e agency. r if t'lo v N certify under penalty of lair 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 inquirV 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 fa Ise information Indud i ng the possibility of fine and im prisonmegt for k o f ng violations." PrintedName: Sign at u re (sa gne d in ink): Date: Section V11. Submittal Instructions. Submilit this form to the Virginia Stormwater Management Program (VSM P) Authority, if the locality is the VSIVIP Authority, please send your Registration Statement submittal directly to the locality; do NOTsend this form to DE . A list of local VSMP Authorities is available here: VSMP Authorities. If DEQ'Is the VSMP Authonly, pleasesend to; Department of Environmental Quality Office f Sto rm Ovate r Ma n age me nt S u ite 140D PO Box 1105 construgtiongp@deg. i inia. ov Rev 04 1 If the locality is the VSMP Author t * please send to: The Local VSMP Autbo r-1tv tinsert address below PAGE 4 1 Section 2. Notice of general permit coverage (This notice is to be posted near the main entrance according to 9VAC25-880-70, Part II, section C.) 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 3.30 acres. The following are the proposed management strategies and detailed sequence of construction: INM-11im 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. PHASF 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. 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 rg^—x DIMENSIONS ground GRADING EASEMENT 31O —10— INDEX CONTOUR - - 312- - - 12 INTERVAL CONTOUR 311.5 x 57 X SPOT ELEVATION 311.5 TC 57 X >c TOP OF CURB ELEVATION x511.5 TW 57 X rx TOP OF WALL ELEVATION .5 BW x 57 X sF 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 In ILL CG-12 STANDARD ACCESS RAMP SIDEWALK BIKE PARKING PARKING SURFACE — CROSSWALK T- HANDICAP ACCESSIBLE AISLE HANDICAP PARKING material 0 CONCRETEIPAVEMENT-SIDEWALK RIPRAP ASPHALT 0 GRASS EC-3 MATTING EC-2 MATTING WETLAND TREELINE - x— x- - x— x- FENCE STREAM utility UTILITY EASEMENT ♦ • UTILITY POLE ❑ ❑ LIGHT POLE OVERHEAD UTILITY O Q1 O MANHOLE sanitary & sewer STORM LINE --•"- 0—•"- ROOF DRAIN q �q 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- WATERLINE 0 WATER METER WATER VALVE AND BOX FIRE HYDRANT WATER EASEMENT 222 -�+•—�._- -a.+—•••- GAS LINE VSMP PLAN PROFFIT ROAD TOWNHOMES SOUTH TAX MAP 32, PARCEL 35 ALBEMARLE COUNTY, VIRGINIA OWNER/DEVELOPER EXISTING USE Albemarle Land Development LLC Single Family Dwelling 1949 Notaide Drive Charlottesville, VA 22911 PROPOSED USE ZONING 40 Single Family Attached Dwelling Units, 13.6 DUA R15- Residential per ZMA 201800019 LAND USE SCHEDULE SETBACKS (Does not include right-of-way dedication area) Front: EXISTING Area Minimum 5 ft from right-of-way or edge of sidewalk if the sidewalk is outside of rightaf-way Building 2,458 SF 25.3 7,244 SF SF 74.7% Maximum 25 it from right-of-way or edge of sidewalk if the sidewalk is outside of right-of-way7ravelway Impervious Total 9,702 SF 7.6% Side: Open space 118.SF 92.44% Minimum 51t, unless the building shares a common wall Rear: 28,1416 Total= 118 SF (2.9ac.) Minimum 20 ft Building Separation: PROPOSED Area Minimum 10 ft, unless the building shares a common wall Building 33,000 SF 43.2% 59.% DISTRICT ImpeNous Total 76401 SF Rivanna ODen space 51,717 SF 40.4% Total= 128,118 SF (2.94 ac.) SOURCE OF TITLE LIMITS OF DISTURBANCE DB 5160 PG 296 DB 512 PG 516 PLAT 3.30 acres of disturbance is planned for this development 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) 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 floodplain 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 Department ofeammunily Developmem Construction Record Drawings (As -built) for VSMP 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 adwr than the designer. Please do nol provide design drawings as construction record drawings. A. A signal and dated Pmfnasinnal seal of the preparing engme r or surveyor. B_ The name and address or the firm and individual preparing the drawings on the title sheet. C. The witaructed location of all items associahxl with each facility, and the inspactinll records to verify proper dimensions, materials and installation. The items include, but are not limited to the following: 1. inspection Records and photographs for pipe trenches and bedding, including underdrains. 2. Video Pipe Inspection for any pipes which are not accessible or viewable. 3. Updated Lomdon with gea-comdinales of all facilities. 4. Verified Drainage Area maps for the drainage area treated. and for drainage inthe facilities. 5. Curretrt physical and topographic server for all earthen structures. Ponds should include a survey of the pond bomom. Surveys should ved ry pond volumes are per design. Corrections may be required - fur alterations frum 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, culverVpipo sim, weirs, materials. iNcts or end trealment(s), inlet and outlet protection, alignment and inverl elevations compared to design. 8. Computations: For significant deviations from design, provide swhd compuW alr s verifying that the a Iuc ilt condition is equivalent or belter than design. 9. Ditch Lines - Display the ccerstnicted location of all ditch Sines and channels, including typical sections and linings. 10, Easements - Show all planed easements with dead book references labeled, Facilities and drainage must he within platted casements. Pruvidc copies urrec olccd doc:omcnts. I1. Guardrail, Fences or other safety provisions - Display the constructed location oral) safety provisions; fences, guardrail, including the type, length and applied and treatments, compared In design. 12. Material layers-huafiher media, stone layers, sand layers, keyways and cones must he verified a5 to malarial types and depths. Include inspection reports, boring nr test pit reports and materiats certifications. liiofilter media must be an approved state mix. 13. Access roads - show location of access marls, surface treatment, drainage, etc, as applicable- l4. Cumpacllon reports arc required to verify fiLl atmpaclion in dams. €5. Manufacturers certifications for proprietary SMP's certifying proper installation and functioning. VICINITY MAPSCALE:1"=1000' p AIRPORT CENTER � Ad Spec Rd ry°j �PD a J Airport Road Auto Center 0 :� DEERwonn SITE Wakimensp Prove Rd S P R I N G F I E L D ABINGTON PLACE The UPS StoleQ " art Target 0 Q Food Llarl FOREST R t 0 G E u Tlmberwood Brill Q m a/ 11411O J artlens FOREST LAKES S91 HOR Memorial G_ Map provided by Google.core SHEETINDEX C1 COVER C2 E&SC NARRATIVE C3 EXISTING CONDITIONS SHIMP ENGINEERING C4 GRADING & UTILITY PLAN o.sien Fvons.aenern..rina swyn se•• C5 E&SC PLAN PH1 �• •. •gym= ce"a"••.� C6 E&SC PLAN PH2 C7 E&SC PLAN PH3 �ALT13 Q� C8 E&SC DETAILS° C9 PROFILES ° u JUSTIN M. SHIMP C10 DETAILS Lie. No. 45183 � w¢ C11 PRE -DEVELOPMENT DRAINAGE oN/a. C12 POST -DEVELOPMENT DRAINAGE VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.19 REVISION: 01- FILE NO. 18.041 COVER 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 3.30 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 e 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 PINNING 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 ARDONF 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. OUTLET 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. 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. IN 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 Al 0. 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 MRGINIA 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 APPUCABLE TO WATER WITH IN WATERS OF THE STATE AND IN INTERSTATE WATERS. 2. CONTRACTOR SHALL MINIMIZE THE POTENTIAL FOR AIR POLLU70N 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 UTIUTIES, 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 EXISIING 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 CONSTRUCIION 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 1.16 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 INSPECT EVERY 6 MONTHS DURING THE FIRST YEAR OF OPERATION. ADJUST THE INSPECTION INTERVAL BASED ON PREMOUS 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 s n days after final grade is reached o 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 remaineedormant o 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 o protected with sediment trapping m 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 at permanently stabilized. Permanent vegetation shall not be nsidered established until a ground c achieve that, in the opinion of the county Inspector, is uniform and mature enough to survive to inhibit 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. STAGILIZATI ON OF EARTHEN STRUCTURES: Stab lizatl on m s shall be applied to earthen structures such os dams, dikes and diversions immediately after installation. 6.SEDIMENT TRAPS AND BASINS: A sediment basin shall control surface runoff from disturbed area. 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 outfalI 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 amanner that � will m s Slopes that ore found to be eroding excessively ,Hhino ezyearoof 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 we seeps from a slope face, adequate drainage or other protection shall be provided. 10.STORM SEWER INLET PROTECTION: All storm s 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 a mode 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 tom encroachment, control sediment transport and stabilize the work o tomthe greatest extent possible during c nstruction. Nonerodible material shall be used for the construction of ca ways and cofferdams. Earthen fill may be used for these structures if armored by nonerodible cover materials. 13.CROSSING A LIVE WATERCOURSE: When a live wato ercourse must be crossed by construction vehicles more than twice in any si month period, atemporary 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.Excovated 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 effete 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 a outes intersect paved public roads, provisions shall be made to minimize the transport of sediment by vehicular tracking onto paved surfaces. InWhere sediment is of 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 m 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 o after temporary measures are o 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 -9n Focusetl En9lnearin9 at HiP sbea� asa.an.siao en.n"n.."�., .vsoz .nimoe�a�eewre.�, �O pLTII qi, LI �O O � U JUSTIN M. SHIMP Lie. No. 45183 � W¢ Off, A`VSAONAL VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.19 REVISION: 01- FILE NO. 18.041 E&SC NARRATIVE SHEET C2 OF 12 CL I � I I / I I Id // I/ I \ E � I G - MISTING 20' UTILITY EASEMENT MISTING SANITARY MANHOLE Este Fk=2-5 B \\ B4-5A 7f�,{ { T.Mq�C1�V14,f6B4-5A ROB ti,1 O '^4 0 T 14% I KATHLEEN KTH \ D.B. 1685- 069-2_5-W 29 PEAT___ 43 PLAT -----' ZONED -��_---' — --_ — — --520— PRO ---520— —_ PERTY -- 1 MAPLE G OV Was g-gam IN CHRISTIAN U CH �•1 TMP 32-29D D.B. 2303-626, to �� �� MAPLE GROVE D.C. 630 THRU 633 PLAT '*y .�� CHRISTIAN D.B. 1406-131 PLAT CHURCH D.B. 1011-131 PLAT I � D. B. 781-200 D.B. 294— 555PLAT ZONED R1 I � III / 1 I --_ ----- � _—___ Dense Trees \ .�.y. IIII1^IIIIF/ o ��--_-- POLE \`I OLE \ / 1 POLE �I 1 1��nn (REL 1 \ 4 l cYELC \\I 1 T.M. 46B4-5A \ I ROB RT G. PETCHEL & \ \ \ \ \ \\` KAT 0-'PEICHE\ \\ \� \Dc .B. 4296-6116 \ \ \ \ �% EX. bRAVEL D.B. & 12 PLAT\ \ \ \ DRIVEWAY TBR n D.B. 1069-2 & 29 PLAT�p 9 —443 PLAT \ V, \\ / i-- -- I I ONED R1 / EX. BUILDING TO BE REMOVED \ X/ EX. WM TO BE REMOVE\\ ► I ABANDON C0NJOE, \ � \ P1 12R \ \\ \\ _— \�� \ Nr \\\ MILD \ 1 \ \\� VERLAY P$R 1 1 T.M. 32-29D © \\\ \ \ MAPLE GROVE \\ 32-35 CHRISTIAN CHURCH 3.20—ASBES D.B. 2303-626, \ ALBEMARLE D.C. 630 THRU 633 PLAT , DEVELOPMENT, LLC D.B. 1406-131 PLAT / \ I \ \ I D.B. 1011-131 PLAT / Q.B. 5160-296 _ D.B. 781-200 D.B 512-516 PLAT o s.e.-294=555 PLAT Z NED R15 / O �ZONNED R1 / © QREES TBIR O / / $ 1 1 : 1 18 15' NONEXCLUSIVE RIGHT AND EGRESS ( OF INGRESS — D.B. 505-615) i \ _ 1� 1 _ - / -- BANE- __-_ _ EX. GRAVE g \\ 1 z �Q2608'59"W 169.50 IVEWAY R e 1 i / Dense Trees y \ 0, ! 0 \ Imo\ \ 0 L1 \ I 1 0 � \ll 4 \ \ \ I \ \ `II \ \ 1 , 30 0 30 60 \\ Scale: 1"=30' _SHIMP ENGINEERING Design Focusetl Engineeringc cl ruc ���m s�,e•� aa.an.s�ao pLTlI qp /? o �? UU JUSTIN M. SHIMP Lie. No. 451 33 �OAASSI�AL w¢ VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.19 REVISION: 01- FILE NO 18.041 EXISTING CONDITIONS SHEET C3 OF 12 C3 �1 II I o I I I / >d 1I J I I I MISTING 20' UTILITY EASEMENT Dense Trees MISTING SANITARY MANHOLE EstesBk=2-5 — — — _ _ — — —� — — — — —( — a« — / 1 POLE OLE `II 1 \ / o 21_5Bl LOT 31 FFE 52.5 \ B4-5AA. `? ° F� \ 4 .68' \ p \\ \ I 0 SET ACI \ ACE EASEME / / EMERGENCY I / ENTRANCE 1 _ \ X3� ` ` I NEW 20_ACSA— ROB ° — — c/o e DI I\ KATHLEEN } 0 LOT 30 \ \ \ \\ 34 LT 32 LOT 3 LOT 34 L(T 35 LOT 361 I LOT 37 LOT 38 LT 39 LOT 40 m �_ \` 1 _ } FF �31. FFE 531. FE 533. FF 534. FFE 534. FFE 535. FFE 534. FF 534. FFE 533. _ / 2 LF `\ 3' o I / i 1 STEEL LOT 29 \ \ / ' - 3 - Jy LEEVE I FFE 527.0 L J 3 / -----' —--_____-520--- _ I 3I ,s ) — _ 1 —5ZO— NE -- — T-LACCE EASE T_ n 5�� �W $` I4 • / EW 20' �� \ 'tom / �+ — ss`EASEM ' \ i E�W EI 1 a0. ,�1 1� �rAz /■�,p��"�'"'I �1■�•• 5" NyP sToeM y■ 1® 8• N AN — �s I�\S6I �I SANa 1 r OQ DI =�YB\d�PR STORM -0 15' HPX O ��\\ /I� FL�53 ? C• .I I I I _ W .'�� 'I �� UMITS OF DISTryiy �.� A3 12'DI-3CW q __ _ ••/y \�� AVLR \ 1 , Y � L6T \ $ Ii 1 ,I� " ' ,I� TMP 32-29D LOT 22� - - ( 1 E ' - ` SHIMP ENGINEERING MAPLE GROVE /1 FFE szs.o .��' CHRISTIAN t — — A� LOT 16\\ \ � _ _ _°..I L0595 — I Ally \4• g I I Iwo Pan1111Is�,E 1E111. I��h� INI-1111 IPRaEm n.w, 1— CHURCH �.J �O FFE 528.0— FFE I I— I_G 5 I I Design Focua.tl Enyin�ariny OT A I a,wsn se°.� II �•' FFE 5260 \ LOT 17 // FFE i (n 1 en.non.,�.. nzzmz .nimoe�d�eema�ao� A. ONNECT TO EXISTING _E. _ FE 532' _ O Z y BIOFILTER STANDPIPE. o.F FFE 528.0 I z 1 F` ID LpT 5 I 5 LOCATION &ELEVATION TO o \ \ OF q o BE CONFIRMED. LOT 24 LOT 18 I\ \< O ASPECTI 1 FFE 528.0 I ry0 L ry, POT 1 I / LOT 25 / FFE 527.0 kri LpT 12 I °'• 1_ 1 I \ ( I a1 / LO528.95r FFE 532.5 — j Y"° �i / I \ • 0 E / �" 1 A I to I 1 _ a F'CA 53 I ` • 1 U JUSTIN M. SLIIMP a i ) aI �,/ z g l 1• 1 Lie. No. 45183 FFEE 52io z6 F LOT 13 T FiLL T I I FFE 5325 I o P _ DRAINAGE EASEMENT 1"pT53130 1/ 1! I g 1 z _ _ LOT 21 I FFE I 1 1 /T •I 11 ; c� 1 O zas .5 A —� m oGo -- — _ ' •' � FFE 53 _ 1<. 1 ,a N ?�_ ems_----- — 15 I �I III - - - - - - - - 1 FF�T'53.0 1 f i1 m _ ---------- \ VSMP PLAN — — — — — 28 - I - FFpT3'0 •I � , 1 ALBEMARLE COUNTY, VIRGINIA _ PROFFIT ROAD — N o sz6' 8'58'!w 169s0 I I T nse �eee—�'—`"�—�— — —�,_ TOWNHOMES De — o ° ° SOUTH SUBMISSION: 2020.03.19 REVISION: 01 - O I�1 1 I I o � I � \11 \ 4 \ \ \ I 1 ` \II O \ \ FILE NO. 18.041 GRADING & UTILITY 0 ( PLAN SHEET C4 OF 12 '/ Y \ \ / /^� 30 0 30 60 A Scale: 1"=30' 4 - Dense Trees I\ \\ POLE / \ J DDrtD„M—DND—�—DND—c—�—DND_D——DD—DND D„M—DND a OLE --God - POLE $ `j N Llow IMITS OF \ I T %o �% �V WAT�Iw I I \ \ \ - DRg 1 1 X \ f I F vv v m \\V A EX. BUILDING TO W \V BE REMOVED v i EX. WM TO 6E REMOVE` ABANDON CONNECTION 1 _ MAIN / I ° � ° -\ 1 0 \ 1\ I 1 • I all Now a \ \\ \\�� / \�—��� \ W o \\ MILLS I I —0 \\ I \ o I }EDIMENT TRAP DRAIALAGE AREA 2.9I ACRES `\ k I © EO VTOM960'x28' i II f ORA r - FILL THIS AREA TO FINISH SEDIMENT TRAP / PRIOR TO MAJOR SITE WORK ' N _ _ _ _ - RIGHT OF INGRESS 15' NONEXCLUSIVE I / `D �' - -- - -AND EGRESS (D.B. 505-615) i N-- — -- \ — — — — trMtis—O�DrsTt/ROANeF _ i i Dense Trees z � VE AY P R IT, \\ DO I \ \�IA\ I \ I � I I 1 I I g I I di I \ I II\ 11 I 1 1 11 I � I W I I I O I � � 1 q L � II • m EX. GRAVEL VEWAY T R 1 - \ I � /J 0\ / 0 0 \ / a 20 0 20 \ o I 1 W Scale: V=20' SEQUENCE OF CONSTRUCTION - PHASE 1 1.INSTALL CONSTRUCTION ENTRANCE. 2. INSTALL SEDIMENT TRAP WITH SILT FENCE AND DIVERSIONS. I 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. I II 6. MAINTAIN PERIMETER CONTROLS. SOIL EROSION & SEDIMENT CONTROL SYMBOLS SYMBOL NO. TITLE KEY — CONSTRUCION ENTRANCE x x 505 SILT FENCE ESDIMEN- I.MED I I [DRAWN TO SCALE] 3.03 TEMRDRARPROTECTION 8 -ET PROTECTION TEMPORARY SEEDND 3.32 PERMANENT SEEDING 3.35 MD DMST EDNTR. .. U.11 DI— FENCE NE D111N.AN1E _SHIMP ENGINEERING Dasign Foc dEngi... HINgG cl c, NAc MN�EA s,�e•, aa.an.s,ao NLTHqI,� o u JU'TAN' TIN M. SHIMP Lic. No. 45183 a w¢ 'f OAASSIONALy VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.19 REVISION: 01- \ FILE NO. 18.041 E&SC PLAN PH 1 \ SHEET C5 OF 12 C5 g� 1 SEQUENCE OF CONSTRUCTION - PHASE 2 I'I I 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 V �� /- - - - - - - AROUND A10. / \ g\ 3. CONNECT PIPES A6 AND A7 WITH A MATTED CHANNEL WHERE FUTURE \ `-- Dense Trees DETENTION PIPES WILL BE INSTALLED. PLACE SILT FENCE AROUND CHANNEL. 4. STABILIZE ROAD WITH STONE AND PLACE INLET PROTECTION ON \ -5 �, y II I REMAINING INLETS. 13 \\ 5. ONCE ROAD IS STABILIZED, REMOVE SEDIMENT TRAP & DIVERSION AND FINISH CONSTRUCTION ON LOTS 22-26. / A POLE-aM-DEMrtDND-aM-OMD-oND-o„M� oD-aND-D„M-ND- OND-oND-o~M DD-aNM OLE POLE � 1 \ \ `Ix SOIL EROSION & SEDIMENT CONTROL SYMBOLS SYMBOL Mo. TITLE KEV T LIMITS OF I B \ "E 482.68 / \ 2 .58 ao2-STRucnoN ENTRANCE Z2 PROPOSED ROW X ®X a.oT w�ET PROTEcnoN OOZ \ \ \ u / \ ff \ \ ■ DEDICATION 35.5' WIDTH a.00 TEMPORAR. ORsoN DINE ®D ° LOT 31 �� 0 �\ I \\ I \ I I I / 1 I \ ■ 1 FROM ROAD CL IYE 112 TEMPORARY D-SION FFE 527.5 \ \ I \ \ I a.�a TEMPORARY SEDIMENT TRAP \ \ [DRAWN TO SCALE]O -ET PROTECION a® LOT 30 \ \ 34 32 \ 1.12 PERMANENT SEEDING I FFE 5-27 5 \ �LO - (�T 32 LOT 3 LOT 34 L\(�T 35 LOT 36\ LOT 37 LOT 38 LC�T 39 LOT 40 a.aP OOST NTPOR \ \� g � 1 x \ FFE \5 \1.0 FFE 531.5 FE 533. FF \ 534. FFE 534. 32 FFE 535. FFE 534. F 534. FFE 533.t- - _ ) \ I .. uMITE OP DISIREANCE N LOT 29 \ \ \ \ ---� FFE 527.0 325 �k \ \ ' 1 \ t FFE28 �o \\\ I \ 2 \ 3 I / I // 1 ✓4■ - II �IN �w � I� ■ W I, _ • I LOT 27 \ FFE 527.0 \ \ I _w� _w-w,-w\ -w -Tyy �w I - w�� I = a - X- - a \ \ PRIVATE � A IP AB a ��\ FLOg39.5 I g I 1- -- j �\ I Now a A3 I- I\-30 A I I \ •A°MIL Y WEIR WALLFFE 35.5 1 11 a m \ \ I �\ o a i------------� �� LOT 16\\ I � I FFE531.5 _h � I FFE 528.0 L0�`3 FFE g m A 1 LOT 17 \ �� FOT530o O - 00* FFE 528.0 \ I I IY LOT I o / T --- - - - :E I\ F LO 11 h I o \ # w / LOT 18 FFE 5 FFE 528.0 x v g o ■ LOT 19 528.5 / FFO 532.5 \ FFE 535.0 g ■ --- I I _ 1 / 26 LOT 13/ / I I ■ 0 I I FFE 532.5 LOT 6 � g ■ 0 FFE 534.5 1 I oN I ~ LOT It I / I ■ co �/ o o - - -� - - - - - 2 b _ L E -_ - �s I Ln FF531 - 1 1 FFE 53 .5 € 11 11 2�9 N ------ 27° - - - �T 15 I ■ FF533.0 ------------- _ 8 III m / - - - - - - - - - - - - 28 3250 \FFOT 34.0 : 1 a -----�s�� -- a , n o � / I I / ------ l------- 30 \ ■ Z S26°08'59"W 169.50 ■ / I I Dense Trees - ----e OZ 1 \ � 1 *20 0 2l \� 40 I 6D , Scale: 1 "=20' SH_IMP ENGINEERING Dxi�nY MavnzzaozEn9ina n�n9 snimpeneinemne.mm pLTH � I? O � v IUSTIN M. SHIN P > Lic. NO.45183 � $so �O�E'rSIONAL E�� VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.19 REVISION: 01- FILE NO 18.041 E&SC PLAN PH 2 SHEET C6 OF 12 C6 Y � � I 1 Dense Trees _ I\ JAG I -0 \ POLE - $ - - - -----GND-OND-toNO-OND-oNO-DND-DNM-ONE- DNN GO-ONU- ND- J _ D--DNU -OH, �- - -- - -- -- -- 7 / POLE g LIMITS OF I B \ "E 482.68' / \ 2 .58 T o� OZ 2 \ n \ \ A �a LOT 31 \ \ I ° \ I I I 1 33° X / FFE 527.5 a LOT 30 A 34 32 �j A FFE--5-27.5 \ g \ SEQUENCE OF CONSTRUCTION - PHASE 3 I 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. 1 I I I f PROPOSED ROW DEDICATION 35.5' WIDTH FROM ROAD CL I LLgT 32 LOT 33, LOT 34 LQT 35 LOT 361 LOT 37 LOT 38 LOT 39 LOT 40 - FFE \531.0 FFE 531.5 FE 533. FF \534. FFE 534. 32 FFE 535. FFE 534. FF 534. FFE 533. � - 2 ILL \ \ 0 I --- i 1 STEEL N LOT 29 \ \ \\ ��I 325 �k ., SLEEVE FFE 527.0 \ ° \ r - I \ \ 1 \\ LOFIFET528 27 0 0� 0 \\\ I \ 2` 3 I / I �/ I i 4- •' II W Z / I IN \ I ■ \ LOT 27 I C o W g\ FFE 527.0 �� \ -W Wn�W� Wi-m-W -W -WV �lM1 W I A \ -� 26 --� O 8 DI SAN X- - -HP 0 DI SAN T ' DI-3� 2 / P 0 PRIVATE O4D A IP na n 2' DI-3B 15" STORM \ • _ - I\ I 3 w #B� A3 12' DI-3C W A- a�a / `- J� 30 „ W \ EIR WALL •A y ST N N LOT 22 m�\ \� FFE 526.0 LOT 16 \ \ x - -- 0 T 9 I \�K I 531.5 LT �O Q \ FFE 528.0 \ FFE x LOT 23 - or o I - FFE 526.0 / LOT 17 > c --' Oj 10 �\qE 5320 - A m 1 I^I FFE 528.0 A I \ m 1 X \\ x-AN --LOT 24 ---- n - \ -EEE_5.2 I _ 0 11.0 / LOT528.0 FFE F - \< o IIANS�EEPOT tyro m I \ LOT527.025 FIFE I--� _ 0 = II LOT 12\ 5 LOT19 / T FFE 532. \ -- FFEOT527 0 26 / III - LO-T 13/ LOT 20 I FFE 532.5 F715285 - F-- I --- - LOT 21 I F F 5) D _ _ 2 b __ ---�__ s -_ G 0)----' --�29- - - - - - - - - - - - 27° FOT535 - - - - - - - - - - - - / - - - -sLtMtiS-oF�piSTURBANEF 28 / - - �o S IDense Trees FLO535.5 I I I \ I MIL k \ Z AY 9R 35.5 11 Im FFE rI g 1 I FFE I I / FFE 535.0 I ■ I 1 LOT 6 g l ■ o, FFE 534'5 I / I� _ I I■ A I FFE 534.5 I 1 I � I g ■ 0 a 3250 \FFOT 344.0 � 1 30 Y z 9"W 169.50 ■ -70 - - � � _0 � O . ----e �Z ---\ -Q 1 I 1 0 1 Z \ IGI 20 0 20 1 40 I 60, Scale: 1 "=20' SOIL EROSION & SEDIMENT CONTROL SYMBOLS SYMBOL No. TITLE KEV aoz CON-TINGN ENTRANCE x x 305 SOT PENCE 0 3GG TEMPORARY D-RE101 DINE [DRAWN TO SCALE] - TEMPORARY SEDIMENT TRAP 3.1E OUTLET PRO-TION 3.» TEMPMARY SEEDING @ 3.32 PERMANENT SEEDING ®s M Ts DP o-NenNCE SHIMP ENGINEERING _ Dxi�nYillavnzzaozEn9ina n�n9 snimpeneinemnR.mm O���pLTH `I O v NSTIN M. SI3IMP > Lk. No. 45183 o �E'rSIONAL E� VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.19 REVISION: 01- \ FILE NO. 18.041 E&SC PLAN PH 3 \ \ SHEET C7 OF 12 STONE �70' MIN. CONSTRUCTION ACCESS 3" SM-2A ASPHALT TOP �COUftSE EXISTING 29. 29. ppyEMENT 21A AGGREGATE BASE PROFILE STONE 70' MIN. CONSTRUCTION ASPHALT PAVED ACCESS A WASHRACK EXIST NG 2Y 2R PAVEMEM 2y, 12' MIN.' 'MUST EXTEND FULL WIDTH L-..Q �`POSITNE DRAINAGE OF INGRESS AND EGRESS TO SEDIMENT OPERATION TRAPPING DEVICE PLAN �12' MIN. POSITIVE DRAINAGE ToSE 27 TO SEDIMENT - TRAPPING DEVICE Y: FILTER CLOTII - SECTION A -A A nihlnwmi water tap of 1 inch nnis't be installed wrNr a ululilmmi 1 inch ba3cock shutoff T'ah,e sr Tri a wash ho. a with a diameter of 1. A inches for adequate A R Ph to constant lressrve Wasli wale nmst be carried away 5om fire entrance to an 1 Y approved settlial area to rcriwce "(hind. AS sediined shall be prece ted fi'oni eateln8 "torn di aI ditches oI orate corvses. PAVED WASH RACK NO SCA_E ri_'PAVED CONSTRUCTION ENTRANCE (CE) C$ Not To Scale TABLE J.lT-c TFMPORAXY SEF -PLANT MATP]IJAIS, Raca G RAm, AND DATPS SPP.CIES SPP.CIES sFfnmc GTE NOErx' souTTA euNr CXAMCTE1l1S CS wns I�Lv rdmy NiWl Br.l Hobbl. rE° OyeWmN wISN. io IY. xle. ��me.w iuu-iWmi � I wn. M`�.y e.�e�m am�.iY6aRAsr cnmw NR. n. M.y e..eem4m.. wm 00YW1 NN4®I m< I u44yu_ r NmNcm Pietmonl Oil Mounuin rPBiNI. Sm PIe4a 3.22-1 W ).22-2. n �Nam Halmml vil CaNW Plan. y m Ewa az a m�nr nmP.iN mAne �Iin3. e MAY 6c uuil azarover cmp wiN fYl wiling. y x vlanlm 6nwcn Nnn mvr. Mar Bx m PNnIm Bemeen Nyx ayN,. TEMPORARY SEEDING (TS) C8 Not To Scale III FLOW EXTENSION OF FABRIC AND WIRE IWO THE TRENCH. FILTER FABRIC �J WIRE %s_�SILT FENCE (SF) W. WIRE SUPPORT C$ Not To Scale DISTANCE IS 6' MINIMUM IF FLOW IS TOWARD EMBANKMENT FLOW nCULVERT INLET PROTECTION (GIP) (`,$ Not To Scale SILT FENCE DROP INLET PROTECTION �IIIIIIIIII I I7RN PERSPECTIVE VIEWS STAKE FABRIC V > A ELEVATION OF STAKE AND FABRIC ORIENTATION DETAIL A THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER THAN 57.) 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. $ INLET PROTECTION IP C$ Not To Scale GRAVEL CURB INLET SEDIMENT FILTER ff/ GRAVEL FILTER�TF RUNOFF WATER WIRE MESH FILTERED WATER I e o ae SEDIMENT CON CRE(E 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, #367 OR 6 COARSE AGGREGATE. To Scale K_7 .�., 4. ,,. _ IBoII=VIJ=IIJ=1I�=II�=11111=11111 .=-IIIIIII=1111111�11�-II�_IIII�II� III-11IM11 111�1�111�1=IIIJ-= II��II�=111J=1I� 1VEE-SHAPED DIVERSION (DV) C$ Not To Scale Compacted Soil 18" min. Flow 4.5' min. nDIVERSION DIKE (DD) C$ Not To Scale PERMANENT SEEDING SPECIFICATIONS February 16 through April 30: Kentucky 31 Fescue 128 Ibs/acre Red Top Grass - 2 Ibs/acre; Annual Rye 20 Ibs/acre. May 1 through August 15 Kentucky 31 Fescue 128 Ibs/acre Red Top Gross - 2 Ibs/acre; Foxta'I Millet 20 Ibs/acre August 16 through October 31 Kentucky 31 Fescue 128 Ibs/acre Red Top Gross - 2 Ibs/acre; Annual Rye 20 Ibs/acre November 1 through February 15 Kentucky 31 Fescue - 128 Ibs/acre; Red Top Grass - 2 Ibs/acre; Winter Rye - 20 Ibs/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) o equivalent. For Temporary Seeding: Seeded areas shall be limed at a rate of 2 tons per core, and fertilized at a rate of 600 lbs. per acre of 10-20-10 (10 lbs. par1,000 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 Ibs/acre each, along with EC-2 Matting: Virginia Wildrye (Elymus virginicu s), Little Bluestem Grass (Schizachyrium coparium), Purpletop (Tridens flaws), Broomsedge (An dropogon virginicus), and Indian Grass (Sorghastrum nutans). s PERMANENT SEEDING PS (,$ Not TO Stele Da na- UV ON eoN 7 DOES OF _I Pmn I CEIRE DrINDEROFAIE FOOD E REan OF E OF E- S DETAIL C-9 DIVERSION FENCE � v ax � IN ulN. x4 24. Axe 1 I�x. �� A91E SHEEEET C iFB gY IN gAUE . R D rLOw s,RrA 41� now -H-„ Ix 4Ix. � IxrO mw Enx4 OVER crl:nnn, TOPOF MixS1. 12 HI 9 GAUGE OR Oil— CHAIN ONON EM nE5 carvsTRucnory sP U x0 (Rig lxCx uABUUu OPExlxO). SE r1l INCx�p x0 N IXvµilllTt0 r�EErP��xr�riTo e�vo5i5oo x0T xEE0xE55 �0 8%xFODT OE IN W,ors ax RY a INWN Ai • uIAnW 4AmNC uAY BE USµDDINE� �IMPEFMNEAUBIUEa 10 DIVERSION FENCE (DF) C$ Not To Scale NIL TYPICAL INSTALLATION AT END OF PIPE saL srArLVATcx Ma wr RE STAKING DETAIL EC-1 ENOSION WITTRIX STOxE AT OUTLET OF PPE. I ill I I rovEm�w � IN.-D�.Na I m@pN,pp�L,i. � oN�s OR wa ` %& �� k- Atli- 0. `�4•, I WW CIECI( SLOT I R.. CLOSED DHEKSLOT I Ii-�J e` LS` TD B' ♦ � E qEq( SOT TO SE � �' FOR 4P�FEPoifD NSTN1ATpH • TRANSVERSE OPEN CHECK SLOT V DITCH - NOTES' �IIL 1 STNtES SHILL SE W000 OR IE'IAl AS RECOYYENOED BY THE uIMiAOTI1RFA AND SHALL BE A INgY ' , I 2 SOL SrAaRAII[N WT TTPE A MN BTMIE TO eE ��,E • N LENDTN 9ULL BE USED. Ax ACW4 � Wnx TIE IPPBovm PRowcTs Lm. STIBIIgAlIOH WT SXOIAD SE NBTN4ID TO THE SNOIAOm BEIK POM 011E 91N0 CNOIID ELEVATpH4. 6• WTEAUL 0M BOTN SIDES OF THE ORG SMALL RE NSTMlm TO TIE SAME wTEBIL ARE REaullEo PIRW4iL ro rIE f aF 11E ovON.IUTERDL SNAu � � �CDLPE�ENNISLM TO THE CFNIER WE OF TIE ORCX. STM1N0 AT TIE LOWEST f ELF.VATIXI S. 7M SOUMES OF APPROVED MKFRIILS SEE vooT•e MMIOVEO PROgCT3 LIrT FOR ST9. EC-]. UPSTREAM AND DOWNSTREAM TERMINAL E �E�NaE SOIL STABILIZATION MAT „1`"� n zaa DITCH INSTALLATION TYPE A OR B REWSgN MTE SHEET 1 OF ] BOB ttr.OJ r11 SOIL STABILIZATION MAT DETAIL C$ Not To Stele Sediment Trap Design Data Warr DA Wet 01 Wet Vol. Areal Dry D2 DryVol. Areal No. A B C H(flJ ZIRI Len9ih (fl.) (ft..)Vol. (Re9.) (ft.) Cy (Prov.) (%9. fl.) Vol. (Re9.) (ft.) Cy (Prov.) (sq. R.) 1 526.0 622.0 619.0 3.0 3.0 17.8 2.97 199.0 3.0 218.0 2244.0 199.0 2.0 199.0 3107.0 a FlL1ER CLOTH O (RIGINAL E%GVATEO) CROeND CROSS SECTION OF OUTLET LENGTH (IN FEET) - 6 % DRNNAGE AREA (N AC.) DNDIKE ' I to SE AGGR�TE ExCAvaTED / FlL / ''COARSE AGGREGATE SHALL BE VDOT #3, #367 OR //6 OUTLET (PERSPECTIVE VIEW) �z TEMPORARY SEDIMENT TRAP (ST) cs Not TO Scale _SHIMP ENGINEERING Dasign Foeusetl En8lnearinl ecr 9 cmeEw cuAnnceNrrvT 4Hign "east asaanstaU en.nml...i ., nzsmz vn M H VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.19 REVISION: 01- FILE NO. 18.041 E&SC DETAILS SHEET CS OF 12 C8 535 530 525 520 515 SANITARY PROFILE Z4-Z4a C9 VERT: 1 =10' HORZ: 1"=20' Vy VR 1 =lU HORZ: 1•=20' n n mn SANITARY PROFILE Z4-Z4b C9 VBR1:1•=10' HORZ: 1•=20' n 535 530 525 520 515 TABLE 1. RECOMMENDED MINIMUM TRENCH WIDTHO HP STORM TRENCH INSTALLATION DETAIL PIPEDIAM. MIN.TREHCH WIDTx• aoanm ]ezmm 3)5mm 8&mm 5p m NOT _ R RIGID MIN PAVEMENT. H FLE%IBLE PAVECOVERMENT. H FINAL )Sdnm 1423mm BACKFRL %Onm 12 INITIAL SPRINGLINE� &1CKFILL TPBE 2 x %mm BASED ON HNNCH VEHICLE LOADAING GONDIT DEER NG SURF LELIVELOAOINGCONDITION 6 FOR.;PIPE MIN TRENCHW DTH BUT BIBLE PIPE DMM. H-25 ryEAW CONSTRUCTION ISE TABLET :OUNOAnON 1]sT AKLE LonO) NOTES: 3ppnn.1200mm 906nm t21&nm 1. ALL PIPE SYSTEMS SHALL BE INSTALLED IN ACCORD- WITH ASTM D2321.•STNDND PRACTICE FOR UNDERGROUND INSTALLATION OF —SET WITH THE EA —CH THAT THE INRWL BACKFILL MPYEKiENDTO THE CROWNOF THE PIPEI %LCLASSIFICATIONS TABLE 3, -MUM COVER FOR ADS HP STORM PIPE.B ARE PER THE LATEST VERSION OF ASTM I XH. CLASS NB MATERMLBIMH. CH)AS DEFINED IN PREVIDLIS VERSIONSOF ASTM D2321 ARE NOT AFPROPRMTE —I CLASS( GLASS II GLASS III . MEASURES SHOULD BE TAKEN TO PREVENT MIGRATION OF NATIVE FINES INTO BACKFILL MATERBLL, WHEN REWIRED. WHEIRE THE TRENCH BOTTOM IS UNSTABLE. THE CONTRACTOR SHALL EXCAVATE TO A DEPTH REQUIRED S BYTTHE ENGINEER ND REPLACE WITH SUITABLE MATERIAI. A$ SPECIFIED BY THE ENGINEER. A AN TERNATNE AND AT THE DISGRETION OF THE DESIGN ENGINEER. THE TRENCH BOTTOM MAY BE STNBIU2ED USING A GBOTEXTILE MSTEFUAL. THE CONTRACTOR SHALL PROVIDE DOCUMENTATION FOR ft�—CAL SPECIFICATION TO ENGINEER COMPACTION SMMlt BESEGFIED BYTHE ENGINEER IN ACCORDANCE WITH TABLE 3FORTHEAPPLICABLEFILLHEIGHTSLISTED. UNLESSOTHERMSENOTEDBYTHEENGINEER, MINIMUM EDDING THI E 4' (f 96mm) FOR tY-24• (3lxxrnla9Bmm)DINETER PIPE:6•HspmnlFGt 31rarc ps0mm-f slDmml ER MAATERIALLU SLIMITEDMIDDLE APPPLICATI'ON AND CANENEATH THE PIPE INVISFT E DIFFICULT TO PLLACEBE LNNDCOMeX PLACED. LTFUSE ONLY WINOTE. TH THE APPROVAL OF ASOILEXPERT. 5. INITIAL BACKFILL: SUITABLE MATERIM SHALL BE CLASS I, IL MIL OR N IN THE PIPE ZONE EMENDING TO THE CROWN OF THE PIPE E TRACTOR SHALL PROVIDE DOCUMENTATION FOR MATERIAL SECIFICATION TO ENGINEER. MATERIALSILALL BE INSTALLED AS REQUIRED IN ASTM D232f, LATEST EDITION. COMPACT I SHALL BE SPECIFIED BY THE ENGINEER IN NOTE,AGODLLAE IV MATERIAL HAS LIMITED APPLICATION ND N BE DIFFICULT TO PLACE AND COMPACT: USE ONLY WITH THE APPROVAL OF ASOIL EXPERT. 6. MINIMUM COVER: MINIMUM COVER, H, IN NON—CAPPLICATIONS (GRASS OR LNDECAPE AREAS) IS IT (300R S FROM PIPE DW COMPACTED 11 130DNN) 41 (1—) 26 (6.5m) 21 MI(4.-S 16 20 (BUT) 16 (4-S 16 (49m1 III' (IT—) 42 (12.Mn) 29 III 21 (SAmI 16 14.9m) 21 (6.4m) 18 (0SIS 16 1 SM) "I" P—) ISAm) 30 (S.fm) (6Am) 16 H.9m) (6.1m) (5.2m1 8 PI' m) SOS—) ("..) (I.ET) SSVMS HI3m) (Slam) H.SMS 14�3m) USSmmI (11.STU S_S (52.) (411 (Sam) (41) (4.3m1 (—Ml " (S I 20 (B ITS 11 (4.3m) 10 (3AA) 11 (I 11 (S4m) 10 (3.dn7 4T (1090mn) 90 (9.1m1 21 (SAmI 14 (lam) 10 (3Dm) 15 (1 11 10 (I—) (9.em) ISml Ham) (2:im) 14 14.3m160• M (1sIXImm) A (B.BmI 20 (EATS HI3m)(vm) 14�6m1 ETOPOF PIPE TOGROUNDSURFACE. AUDITIONALCOVER MAYEREOLIREDTOPREVENTFLOTATION. FORTRAFFIC FILL HEIGHT TABLE GENERATED USING MSNTO SECTION I2.LOAD APPLICATIONS: CLASS NOR II MATERIAL COMPACTED TO M SPD AND CLASS III COMPACTED TO 95%SPD IS REQUIRED. RESISTANCE FACTOR DESIGN(LRFD) PROCEDURE WITH THE FCl.CWING FOR TRAFFICAPPLICANONS, MINIMUM COVER, H. IEIrS mSUPTON6(20 )DINETERPIPE ND24'(60Qnm)OF ASSUMPTIONS: COVER FOR erc lts63mml OIAMETER PIPE. MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT NO HYDROSTATIC PRESSURE OR TO TOP OF RIGID PAVEMENT UNIT WEIGHT OF SOIL (YAK=120 PCF T. FORADGITIONAL INFORMATION SEE TECHNICAL NOTE 204. con'cTXVcncH. rt.s THEPEsmNE1.1�EEXSHE—S.IiUrvTOENSURETxEPETNL.I .a .EONEXDNMEETSOBE.c E.S E v D6r10. i1V BNOBY) XW.NiU.OHONl9NF ._ "1 —fi fifi'—::If>C21_ fi - -fi f>�fl!!•��lAx1_ - -fi f:F3F_iJi��E1Lre1� f>!3._ F ��_.Fi f:LTF'_'t.�:_��I�IIITITIIIIIIIIII�-- fi■!— fi■!- -fi■!— ■!f»fi■!- -!!fi fi! lfi--!!— fi■lf,Na�ey1�.0 —!!fi fillfi--��— - fi■■F� IL3TfT.- I.-T� ■ �■ —!lTNTNTNTN� �l•�iiEY11>6B'r1111d1Y�f:il{l�N�'iiYif>r'�YY■�f`IG� ifaSJ.IIIiTaFM1ftR1CJl1E� �•F i -- •.: �] flfaUaiacENUO •• — �Fii11�F�:IrID1Ra'. �T3� �F'� fi1911i��1r� �al�3nclsr��nr2� � —fi —fi ---- ---- fi fi nSTORM PROFILE A2-A6 Cs VSRT: 1=10' HORZ: 1•=2o' A4 II —IC TOP 524.50' WEI TOP 522.67' o " ORIFICE 518.99' RIFICE INV. 516.72' GEOSYNTHETIC 601T NON —WOVEN GEOTEXTILE ONE STORMTECH MC-4500 1.00' 8.33' �6" UNDERDRAIN INV. 518.0' 535 530 525 520 515 SHIMP ENGINEERING 510 Dasi91 FPcusetl II ... HSI asNXNn sheet Cnenoneanlle, VAzsmz anlmpentlNeeHp.am 5 14+5D UND ELEV. 528.25' E TOP 526.75' BER TOP 525.75' 5.0 ISOLATOR ROW --CHAMBER BOTTOM 520.75' 0.75' 2.75' #3 STONE E BOTTOM 518.00' WEIR WALL DETAIL STR. A4 STORMTECH CHAMBERS SECTION DETAIL C9 SCAU:1"=5' C9 SCAIE:1°=s' LD-229 Storm Drain Design Computations Drntfl TnumHnmee Cnr ilH as©a©aaaomm®®m®mm ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- nLTx Q,>? �O O U JUSTIN M. SHIMP Lie. No. 45183 � w¢ ASSlpNAl. VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.19 REVISION: 01- FILE NO. 18.041 PROFILES SHEET C9 OF 12 C9 ACCEPTABLE FILL MATERIALS: STORMTECH MC-4500 CHAMBER SYSTEMS OPTIONAL INSPECTION PORT AASHTO MATERIALCLASSIFICATIONS MATERIAL LOCATION DESCRIPTION COMPACTION I DENSITY REQUIREMENT FINAL FILL: FILL MATERIAL FOR IAYER'D' STARTS FROMTHE 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. NIA INSTALLATIONS MAY HAVE STRINGENT MATERIAL AND PAVEMENTORUNPAVEDFINISHEDGRADEABOVE. NOTE THAT PAVEMENT SUBBASE MAY BE PART OF THE'a LAYER CHECK PLANS FOR PAVEMENT SUBGRADE REQUIREMENTS. PREPARATION REQUIREMENTS. AASHTO M/45' INITIAL FILL: FILL MATERIAL FOR LAYER'C' STARTS FROM THE GRANUARWELL-GRADEDSOIUAGGREGATEMIXTURES,Q%FINESOR 11, A-2d, Ad BEGIN COMPACTIONS AFTER 24-(600 mm) OF MATERIAL OVER TOP OFTHEEMBEDMENTSTONE('W' YER)TO2P(BOOmm) PROCESSED AGGREGATE. _ THE CHAMBERS IS REACHED. COMPACT ADDITIONAL LAYERS IN C ABOVE THE TOP OF THE CHAMBER. NOTE THAT PAVEMB4T SUBBASEMAY BEAPARTOFTHE'CLAYER. MOST PAVEMENT SUBBASE MATERMLS CAN BE USED IN LIEU OF THIS OR - 1YL300 mm)MAX LIFTS TO MIN.95% PROCTOR DENSITY FOR WELL GRADEDMATERIALAND95% RE IATIVEDENSRYFOR LAYER. AASHTO M43' 3, -.4. 46T, 5, S6, 5T, 6, 6Z, W, Z, T8, B 89, 610 PROCESSED AGGREGATE MATERIALS. EMBEDMENT STONE: FILL SURROUNDING THE CHAMBERS ANGULAR AASHTO M43• B FROM THE FOUNDATION STONE ('A' LAYER)TO THE'C' LAYER ABOVE. CLEAN, CRUSHED, STONE 3 4 NO COIAPACTION REQUIRED. A FOUNDATION STONE: FILL BELOW CHAMBERS FROM THE CLEAN,CRUSHED,ANGULARSTONE AASHTO M43' PLATECOMPACTORROLLTOACHIEVEAFLATSURFACE�' SUBGRADE UP TO THE FOOT (BOTTOM) OF THE CHAMBER. 3, 4 PLEASE NOTE: THE LISTED AASHTO DESIGNATIONS ARE FOR GRADATIONS ONLY. THE STONE MUST ALSO BE CLEAN, CRUSHED, ANGULAR. FOR EXAMPLE, A SPECIFICATION FOR AY STONE WOULD STATE:'CLEAN, CRUSHED, ANGULAR NO. 4 (AASHTO M43) STONE•. 2. ETORMTECH COMPACTION REQUIREMENTS ARE MET FOR A' LOCATION MATERIALS WHEN PLACED AND COMPACTED IN T(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 RARING OR DRAGGING WITHOUT COMPACTION EQUIPMENT. FOR SPECIAL LOAD DESIGNS, CONTACT STORk COMPACTION REQUIREMENTS. 4. ONCE LAYER V IS PLACED, ANY SOIUMATERML 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 801T NON -WOVEN GECTEXTILE ALL AROUND CLEAN. CRUSHED. ANGULAR STONE IN A & B LAYERS I p IIIII III pI L III W �� 0 II I �;%� IIII II ,8 rµIqy(^ul��Illl1IIIIII UI 'III ��� � � IN �!R ���1.1���..1�I�►�� 1 E�I�L. �� ,il�lll� 11Ti NRI rt=ilBkilci' 1 Tr=�ncll�i nI n ndlil�liil lil=�ngirn PAVEMENT LAYER(DESIGNED BY SITE DESIGN ENGINEER) �, za (BOO PIT) MIN' MAX ( 1Y(S00 mm)MIN M 60- 0525 mm) DEPTH OF STONE TO BE DETERMINED BY SITE DESIGN ENGINEER 9' (ZGO mm) MIN 100' (2540 mm) 12 (300 mm) MIN NOTES: 1. CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2419-161.'STANDARD SPECIFICATION FOR POLYPROPYLENE(PPI CORRUGATED WALL STORMWATER COLLECTION CHAMBERS- CHAMBER CLASSIFICATION SOX101 2. MCd500 CHAMBERS SRALL BE DESIGNED IN ACCORDANCE WITH ASTM F2787-STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMI- 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 SHAUL HAVE INTEGRAL. INTERLOCKING STACKING LUGS. • TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL. THE HEIGHT OF THE CHAMBER JOINT BRALL NOT BE LESS THAN 3'. • TO ENSURE THE INTEGRITY OF THE ARCH SHAPE DURING INSTALLATION,a) THE ARCH STIFFNESS CONSTANT AS DEFINED IN SECTION 6.2.6 OF ASTM F2418 SHALL BE GREATER THAN OR EQUAL TO SW LBSIINRN. AND N) TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE 73• Fi 2W C), CHAMBERS SRALL BE PRODUCED FROM REFLECTIVE GOLD OR YELLOW COLORS. UNDERDRAIN DETAIL KIM STORMTECH CHAMBER STORMTECH END CAP - OUTLET MANIFOLD FOUNDATION STONE BENEATH CHAMBERS T ADS GE0-HETICS fi01T DUAL WALL NON -WOVEN GEOTEXTILE STORMTECH END CAP SECTION A -A PERFORATED HDPE UNDERDRAIN I FOUNDATION STONE BENEATH CHAMBERS - i i �� ADS N ETIC5601T '\ -WOVG EN GEOTEXTILE NON-WOVEN .. _ITE DESIGN ENGINEER 4•(t00mm) TYPFOR SC310&SG160LPSYSTEMS SECTION Bd _ 6• (1 SO mm) TYP FOR SC-T40 DG780. MC-3500 & MCd500 SYSTEMS MAMI MAMFOL U MIN SEPARATION MC -SERIES END CAP INSERTION DETAIL NTS STORMTECH END CAP NOTE: MANIFOLD STUB MUST BE LAID HORIZONTAL FOR A PROPER FIT IN END CAP OPENING. )N MANIFOLD HEADER MC-4500 TECHNICAL SPECIFICATION NTS CREST STIFFENING RIB CREST VALLEY WEB STFFENINGRIB UPPERJOINT CORRUGATION eo.o• 59.4• Fool (1sz4 mm) ry5oe mm) LOWER JOINT CORR. p BUILD ROW IN THIS DIRECTION 1mv (2540 ! -7 NOMINAL CHAMBER SPECIFICATIONS SIZE W X H X INSTALLED LENGTH CHAMBER STORAGE IW.0•X W.W X46Y" 11X5.5 CUBIC FEET ( 2540 mm X 1524 mm X 1227 mm (3.01 m') MINIMUM INSTALLED STORAGE' 162.E CUBIC FEET rtg) WEIGHT 190.0IM. In (59.IS kg) NOMINAL END CAP SPECIFICATIONS SIZE (WXHXINSTAL LEDLENGTH) - 90.- X 59.4' X 30.T (1281 mm X 1509 mm X 781 mm) END CAP STORAGE 35.7 CUBIC FEET MINIMUM INSTALLED STORAGE' WEIGHT IST7 CUBIC FEET T35.0Iba. ISM W) (61.2 kg) 'ASSUMES 1T (305 ..)STONE ABOVE, 9' (229 ..)STONE FOUNDATION AND BETWEEN CHAMBERS, 12'(305 mm) STONE PERIMETER IN FRONT OF END CAPS AND40%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 GAPE WITH A WELDED GROWN PLATE END WITH'G' END CAPS WITH A PREFABRICATED WELDED STUB END WITH W PART STUB B C MC450OREPE06T -SWREPE06B 8'(150 mm) 42.54•(1.051 IT)- 0.86•(22 mm) MC4500REPE08T MG1500REPE 8'(200mm) 40,W(1.029 m) - (9 1.01'(26 mm) MC1500REPE10T10T MC4500REPE10B a (250 mm) 38.37'(975 mm) - - 1.33'(34 mm) MC4500REPE12T MC4500REPE128 Y (300 mm) S5.89•(9DT mm) - - 1.55'(39 mm) MC1500REPE15T MC4500REPE15B 1S (3T5 mm) -2• (831 ITT) - NINEOGREPEIBTC MC450OREPE18TW 1W(450 mm) 29.3EI(T48 mm) - MC4500REPEISBC MC4500REPE18BW MC45WEtE-TC MCLSWREPE34TW 24'(800 mm) 23CY(585 MC450OREPE248C MC4500REPE24BW - 2.28•(57 mm) MC4500REPE3OBC w(T50 mm) 2.95•(75mm) MC4500REPE36BC 36'1900 mm) 3.25'(83 mm) MC4W0REPE42BC 4YI1050mm) 3ES'(SO mm) NOTE: ALL DIMENSIONS ARE NOMINAL AVAILABLE UPON REQUEST. INVENTORIED MANIFOLDS INCLUDE 12-W I- mm) SIZE ON SIZE AND 15A8- F-12DO mm) ECCENTRICMANIFOLDS.CUSTOM INVERT LOCATIONS ON THE MO END CAP CUT IN THE FIELD ARE NOT RECOMMENDED FOR PIPE SIZES GREATER THAN 10- (2W mm). THE INVERT LOCATION IN COLUMN BF ARE THE HIGHEST POSSIBLE FOR THE PIPE SIZE. COVER PIPE CONNECTION TO END CAP WITH ADS GEOSYNTHETICS EDIT NON -WOVEN GEOTEXTILE STORMTECH HIGHLY RECOMMENDS FLENSTORM PURE INSERTS IN ANY UPSTREAM STRUCTURES WITH OPEN GRATES CATCH BASIN OR MANHOLE SUMP DEPTH TBD 8Y SITE DESIGN ENGINEER (24' INS mm] MIN RECOMMENDED) 24' (SOO mm) HOPE ACCESS PIPE REQUIRED USE FACTORY PRE -CORED END CAP PART M: MC SOOREPE24BC OR MC45WREPE24BW MC-4500 ISOLATOR ROW DETAIL RTS STEP 1) INSPECT ISOLATOR ROW FOR SEDIMENT A. INSPECTION PORTS OF PRESENT) A.I. REMOVEIOHEN LID ON NYLOPLASTNLINE DRAIN A.Z. REMOVE AND CLEAN FLEXSTORM FILTER IF INSTALLED AS. USING A FLASHUGHTAND STADIA ROD, MEASURE DEPTH OF SEDIMENTAND RECORD ON MAINTENANCE LOG A.4. LOWER A CAMERA INTO ISOLATOR ROW FORVISUAL INSPECTION OF SEDIMENT LEVELS (OPTIONAL, A.S. IF SEDIMENT IS AT, OR ABOVE, 3' IN mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3. B. ALL ISOLATOR ROWS B.I. REMOVE COVER FROM STRUCTURE AT UPSTREAM END OF ISOLATOR ROW B.2. USING A FLASHLIGHT, INSPECT DOWN THE ISOLATOR ROW THROUGH OUTLET PIPE i) MIRRORSONPOLESORCAMERASMAYBEUSEDTOAVOIDACONFINEDSPACEENTRY I) FOLLOW OSHA REGULATIONS FORCONFINED SPACE ENTRY IF ENTERING MANHOLE B.S. 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 AFIXED CULVERT CLEANING NOZZLE WITH REAR FACING SPREAD OF-(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, GRAMS. 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. CONSTRUCTION JOINT DETAIL ® REMOVE EXISTING ASPHALT LAYERS TO EXISTING SUESASE AND REPLACE WIN PROPOSED AEPRALT wIDENNG LAYERS ® PROPOSED MINIMUM I'/ NCH THICK ASPHALT SURFACE COURSE (SEE NOTE 5) z MMMJM 12 INCHES, OR GREATER AS NECESSARY TO ABUT THE FULL THICKNESS OF EXISTING ASPHALT LAYERS AS DETERMINED BY CORES (SEE NOTE 3) NOTES) 1. ASPHALT PAVEMENT "DEIaNG SHALL HAVE A PAVEMENT DESIGN N ACCORDANCE WITH CURRENT VDOT PROCEDURES AND BE APPROVED BY THE ENGNEEI. 2 MD.SIgPAY �NDRDNWGE OFTHEEXISTING VµD PROPNT OSED PAVEµ�ENTT 1HALL BE CADDRESSED IINTTHE PAAND iVEMENT UOEF5IGN LAYERS OF E%5TNC PAVEMENT. ]. PAVEMENT OF T EE COPI CORES LSHELL BE 3POLN ND MORE TNO S/00 PADT CENTAPARTRAYEL LANE TO DETERMIE THE TYPE AD NIICKESS OF EXISTHG PROPOSED P VENENi LwLANEID - SALE COURSE. INLI ESS WAVED F Ii� ECHO S AND. REPLACED WITH NI AWHKT SURFACE COURSE TO MATCH THE 5. THE ENGINEER MAY REQUIRE THE UNG DEPTH OF THE EXISTING PAVEMENT TO BE ADJUSTED TO ACHEVE AN ACCEPTABLE PAVEMENT CROSS -SLOPE AND6. EXISTING PAVEMENT MARKINGS AND MARKERS WITHIN THE PROJECT LIARS SHALL BE RESTORED SUBJECT TO THE APPROVAL OF THE EMONEER. T. FINAL TRANSVERSE PAVEMENT TE-N SHILL CONFORM TO THE REOLREMENTS P SECTION 315.OB(c) OF THE SPECIFICATIONS EXCEPT THAT ALL JOINTS AT E-I TL-ONS SHALL BE TESTED USING A 10 FOOT STRNGHTEDGE N RDAN ACCOCE WITH THE REOUREMENTS OF SECTION -0-)OF THE `" ASPHALT PAVEMENT WIDENING ROAD AND BRIDGE STANDARDS EVASION DAT FOR WIDENING SUBJECT TO TRAFFIC VIRCHA DEPARTMENT OF TRANSPORTATION J15 MC-4" END CAP TWO LAYERS OF ADS GEOSYNTHETICS 315WTM WOVEN GEOTEXTILE BETWEEN FOUNDATION STONE AND CHAMBERS 10.3' (3.1 m1 MIN WIDE CONTINUOUS FABRIC WITHOUT SEAMS _SHIMP ENGINEERING Design Focxaetl Emgi... ring cmFsw cl Fcr NAnncFNFrvT sNHNn see•t en.nml...m., vA zsmz vnimce�tl�eem9.mm VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.19 REVISION: 01- FILE NO. 18.041 DETAILS SHEET C10 OF 12 C10 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 1.16 Ibs nutrient credits to be purchased. Runoff from the site in the predevelopment condition is analyzed at two points, POA1 and POA2. However, in the postdevelopment condition runoff to POA2 is collected and piped to the detention system which outlets at POA1. Therefore, the runoff from the development is only analyzed at POA1. The proposed storm sewer will outlet into an existing storm sewer further downstream. OFFSITE AREA [T, 1 / — — — — — -- — -- Dense Trees\\ G = \ POLE —°"° OLEc � 90 \ _ 8 �0� \2 \\ \ ,Q \ \ 456.1 N v v \\ % \ \ j �/ ✓ �„ (REL T % ! l %HELL TB \\' v \ \�`kc = \ 1 o \ \ \ \ % \,\ \ \\ I DRIVLWGRP�VEVEL x \ \ \\ \\ v 70 V I I �I \ \ \ \ \ A \ 70 Fn EX. BUILDING TO \ \\ W \ \ \\ BE REMOVED / / / I $ �➢ STORMWATER CALCULATIONS WATER QUANTITY ACRES CN POA1 ONSITE 01 - 0.97 CFS RV - 0.104 OFFSITE 01 = 0.08 CFS IMPROVEMENT FACTOR NOT TO BE APPLIED TO OFFSITE AREA) NOTES 1. FLOW FOR POA 2 NOT ANALYZED BECAUSE POST DEVELOPMENT CONDITION DOES NOT DRAIN TO POA 2. 2. ALL SOILS 27B - ELIOAK LOAM - 2 TO 7% SLOPES, HSG B. WATER QUALITY ONSITE 1.06 AC WOODS 1.58 AC TURF 0.30 AC IMPERV OFFSITE WITHIN LOD (NOT SHOWN THIS SHEET) 0.34 AC TURF 0.01 AC IMPERV r EX. WM TO 6E REMOVE \\ \ _ J ABANDON C�N ECTI ' z I V A V A IN I � v POA \1 00 TREES TBR R � �ES TB \ \ \ \ \\ \ I I 0 00 \ \ I I Lo — TREES EES TB N I � 0 II DRIVEWAY T R "\ \ OFFSITE AREA POA 1 POA 2 ONSITE OFFSITE ONSITE OFFSITE 0 0 1 1\ 0 G 1 zo 0 20 \ o I Scale: V=20' SHIMPEENGINEERING Dasign 1... .1 EnBac cl ruc �0 o 1? U JUSTIN M. SMMP Lie. No. 45183 a w¢ VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.19 REVISION: 01- FILE NO 18.041 PRE -DEVELOPMENT DRAINAGE SHEET C11 OF 12 C11 / \ -0- OFFSITE AREA 'NO' I1N�IICUJ% IN WATER OUALII _y_- CULATION� N O T 02 Z % LOT 31 FFE 527.5 6 N a LOT 30 � ' E-527.5 J \ x LOT 29 \ FFE 527.0 \ ° \ LOT 28 \ FFE 527.O LOT 27 z FFE 527.0 \ POA \1 ° 25 00 x 1_ W A 12' DI-3C W U �= FIR WAL N N N LOT 22 0 FFE 526.0 N LOT 23 FFE 526.0 --_ LOT 24 / LOT 25 FFE 527.0 / T 26 OE \ 527.0 0 co y Z_ i I \ Dense Trees \ b. I U " \ X 2 \ \7 \\ \ O \ \ \ 34 \ 32 1 \ \ \ I&T 32 LOT 3 LOT 34 LQT 35 LOT 36\ LOT 37 LOT 38 _C T 39 LOT 40 \ FFE \531.0 FFE 531.5 FE 533. FFL\534. C FFE 534. 32 FFE 535.0 FFE 534.t LIFE 534.0 FFE 533. _ - 3255 - \ / \ \ \ 30 3 30 O \ § STORMWATER CALCULATIONS WATER QUANTITY ACRES CN POA1 01=0.35 CFS RV=0.282 NOTES 1. FLOW FOR POA 1 ANALYZED AS IT LEAVES THE SITE RATHER THAN AT THE OUTLET OF STORM PIPE Al FOR EASE OF CALCULATION. NO ADDITIONAL WATER IS COLLECTED AFTER STORM INLET A4. 2. FLOW FOR POA 2 NOT ANALYZED BECAUSE POST DEVELOPMENT CONDITION DRAINS TO POA 1 ONLY. 3. TIME OF CONCENTRATION FLOW PATHS NOT SHOWN. ALL ASSUMED 5 MINUTES. 4. ALL SOILS 27B - ELIOAK LOAM - 2 TO 7% SLOPES, HSG B. WATER QUALITY TREATED 0.84 AC TURF 1.75 AC IMPERV UNTREATED WITHIN LOD (FULL LOD NOT SHOWN THIS SHEET) 0.69 AC TURF 0.01 AC IMPERV / // i 2' DI-38 PRIVATE A 2' DI-3B \ LOT \ 4 303 FE535.5 1 \., . 2 .0 \ I \ \ \ FFE 535.5 W \\ LOT 16 \ \ x _ ° " ° 9 53A.5 v � O \ \ FFE 528.0 \ • FFEO 2 L0 3 5 ° \ o i FFE' / LOT 17 \ - \ FOT53 00 OD A � \ FFE 528.0 \\ x \\ CD LOT \ FFE 535.E O C o ' LOT 18 x°- NSPECTI FFE 528.0 ryoU PORT LOT 12 \ > O LO FFE 528.5 FFE 5325-- / L0J FFE 535.0 26 135 / F -LOT 2 0 FFOT532. _ LET 6 I /// FFE 534.5 LOT Ito / I 2 - - - - LOT 21 4 FFE 53 / SOT 7 i --F-EE_528.5_ FFE 534.5 2975 533.0 \, - - - 28 - 3250 �FFO� 34.0 I - - - - O OFFSITE AREA ONSITE OFFSITE TREATED UNTREATED TREATED UNTREATED 2.59 0.35 0.32 0.21 86 61 61 61 0 00, I 1\ o zo 0 20 \ o I Scale: 1"=20' _SHIMP ENGINEERING Dasign Focus.1 EnB�nearinac cl nnc ��TH � Lr �O O U JUSTIN M. SHIMP Lie. No. 45183 a �cw4 �o�ASStoxal. �G VSMP PLAN ALBEMARLE COUNTY, VIRGINIA PROFFIT ROAD TOWNHOMES SOUTH SUBMISSION: 2020.03.19 REVISION: 01- FILE NO. 18.041 POST -DEVELOPMENT DRAINAGE SHEET C12 OF 12 C 1 2__� Section 6. Pollution Prevention Plan. A. Plan showing pollution activities and prevention practices g� 1 POLLUTION PREVENTION PLAN II PROFFIT ROAD TOWNHOMES SOUTH -- I 1. LIMITS OF DISTURBANCE TO BE MARKED IN THE FIELD USING FLAGS OR PAINT _ _ I \ \ 2. POLLUTION PREVENTION ITEMS SHOWN MAY BE REARRANGED IN THE ^�\ - - I `-- Dense Trees \ g\\ 1 FIELD, BUT MUST BE MARKED ON THIS SHEET. \ - -536 i \---- ---- l �� I \\ II \ POL / / A E-DNM-DNMrtDND-a~D-DND-DND-DND � DRD-DND-DNM- ND- � DND-DNN-DMM�DND-DND _ �@ D OLE POLE - - - - - - - - - - - - - - - �I \\ / O - g LIMITS OF I BmN \ "E 482.68' T o2 OZ \ \ u / \\ 33° \ \ // DEDICATI0 ON PROPOSD R35.5' WIDTH ° LOT 31 \ \ I o \\ I \ I I I / 1 I \ ■ 1 FROM ROAD CL FFE 527.5 \ \ \ I \ \ I a LOT 30 \ \ 34 32 \ FFE-5-27.5 \ IRT 32 LOT 3 LOT 34 LQT 35 LOT 36\ I LOT 37 LOT 38 LC T 39 LOT 40 \ RAIN GAGE \ g I - - FFE \531.0 FFE 531.5 FE 533. FF \ 534.0 FFE 534. 32 FFE 535.0 FFE 534.t FFE 534.0 FFE 533. N LOT 29 \ \1 FFE 527.0 \ a \ \ \\ \ / / 2 71 \ \ FOT528 27 0 1 g \\ I \ 2 \ 3/4 ■ II tI \W g� 1 ■ LOT 27 \ FFE 527.0 \ \ t ��-w W. \ 8 W _w I _w -W-w w Cw Iw �w w�� I� SWPPPI MAILBOX LOCATION \ / o - X- - ° o \ \ PR VATE A PASFL�g39.5 I g I 1- -- �lip\ I �9_ 4 A3 a w $ I\�\ /-� 303 I I \ -. MIL 4 \ 1 WEIR WALLA \\ - r� \ LQT 25 \AY �R I 1 s q7 I \ FFE 535. 1 a - h \ a T9 a l I \ Lo II LOT 16\\ I + x I FFE g3L5 FFE 528.0 - L03 5 I NSTALL sol LOT o LOT 17 STABILIZATION I \FIFE 532 p ee Z I c.* FFE 528.0 \ I MATTING PER \ I➢ LOT ® \ � IL 11/C8 1 \ FFE 535. / - - - - - - LOT 18 FFE 50 - NI�^I\ ■ x ® FFE 528.0 TEMPORARY / STOCKPILE I I I I / I LOCATION 12 \ w ■ x - LOT 19 532.5 FFE 528.5 // \ FFE \ L� FFE 535.0 I I \ ■ / / 1 26 LOT 1 3.5 / / I 1 ■ 52. / I w 536.5 10 --- Noy/o o ---� ----- 2 b _ Lam_- - s I F E 510 F53 5 I 11 ; A a----- --- � FO 15 I - ---- 533.0 \ I - ■ m - - - - - - - - - - - - - - - - - - - - - OT LTMtTS-OF-DisftiRBA 28 325° \FF34.0 - I cDi1 1 - - - - s raeF _ rn o � S26°08'59"W 169.50 ■ / I I Dense Trees - - - --_-e OZ 0 0 o \ ' 2. G 20 0 20 � 40 I ' 60, \ Scale: 1 "=20' SOIL EROSION & SEDIMENT CONTROL SYMBOLS SYMBOL NO. TITLE KEY a02 CONSTRUCRON ENTeANCE x x 303 EIETRE_ICE 0 ® 3.O7 INLET PROTECTON �--�� a0M reMPORAR. DIVERSION DIRE ®o �--�� 3.1: TEMPORARY DIVERSION [DRAWN TO SCALE] 3.i TEMPORARr SEDIMENT TRAP IIIE O -$ Ili MPORANa3EEDNO 3.32 PERMANENT SEEDING LIMITS OF DISIREANCE POLLUTION PREVENTION PLAN SYMBOL ACTIVITY PROTECTION luPAVING OPERATIONS CONCRETE WASHOUT AND ® CEMENT WASTE STRUCTURE Q CONSTRUCTION STUCCO, PAINTING, AND CLEANING DEWATERING 0 OPERATIONS MATERIAL DELIVERY AND STORAGE ® MATERIAL USE DURING BUILDING PROCESS SOLID WASTE DISPOSAL SANITARY WASTE LANDSCAPING oo. V"""l OPERATIONS WASH WATERS VEHICLE AND EQUIPMENT E6'9�I WASHING 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 un- Land disturbance area Plan. Dispose of clearing debris at stabilized areas acceptable disposal sites. Seed and mulch, or sod within 7 days of land clearing Cover storm drain inlets and use drip pans Paving operations Roads and driveways and absorbent/oil 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 com ounds. 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 control as specified on plan. Minimize Wash Waters Wash areas shown on plan 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 revention 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 Proffit Road Townhomes South SWPPP Inspection Loq Inspection: Last Rainfall: Date Time Date Rainfall Amount Summary: Locations of: • Prohibited discharges • Controls needing maintenance • Failed controls: • Evidence per Part II F 3 a (7): (see back of sheet for details) • Additional measures needed: Corrective actions required: Unimplemented corrective actions from previous inspection: Inspector Signature Date Operator Signature Date Part IIF3a(7) (a) Concentrated flows of stormwater in conveyances such as rills, rivulets or channels that have not been filtered, settled, or similarly treated prior to discharge, or evidence thereof; (b) Sediment laden or turbid flows of stormwater that have not been filtered or settled to remove sediments prior to discharge; (c) Sediment deposition in areas that drain to unprotected stormwater inlets or catch basins that discharge to surface waters. Inlets and catch basins with failing sediments controls due to improper installation, lack of maintenance, or inadequate design are considered unprotected; (d) Sediment deposition on any property (including public and private streets) outside of the construction activity covered by this general permit; (e) Required stabilization has not been initiated or completed on portions of the site; (f) Sediment basins without adequate wet or dry storage volume or sediment basins that allow the discharge of stormwater from below the surface of the wet storage portion of the basin; (g) Sediment traps without adequate wet or dry storage or sediment traps that allow the discharge of stormwater from below the surface of the wet storage portion of the trap; and (h) Land disturbance outside of the approved area to be disturbed;