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HomeMy WebLinkAboutWPO202200015 Plan - Submittal (First) 2022-04-10LEGEND EXISTING NEW 10 ---310-- ----310--- 311.5 x 311.5 TC x 311.5 TW x 311.5 BW x x RD q S W WS 0 d1V AFDC FHA GAS 10 f 1.00' 10 12 )D10 8, T` 57 X 5781 N X 578, BW X ■1 �'A - X - R D�,�"- OI I - S W WS El WV d AFDC FHA GAS DESCRIPTION BENCHMARK SITE PROPERTY LINE ADJACENT PROPERTY LINE VACATED PROPERTY LINE MFA/SFA BUILDING SETBACK SFA BUILDING SETBACK ACCESS EASEMENT DEMOLITION PARKING COUNT DIMENIONS GRADING EASEMENT INDEX CONTOUR INTERVAL CONTOUR SPOT EVELVATION TOP OF CURB ELEVATION TOP OF WALL ELEVATION BOTTOM OF WALL ELEVATION RETAINING WALL STAIRS RAILING 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 CG-12 STANDARD ACCESS RAMP SIDEWALK BIKE PARKING PARKING SURFACE CROSSWALK HANDICAP ACCESSIBLE AISLE HANDICAP PARKING CONCRETE/PAVEMENT-SIDEWALK RIPRAP ASPHALT GRASS TREELINE FENCE UTILITY EASEMENT UTILITY POLE LIGHT POLE OVERHEAD UTILITY UNDERGROUND UTILITY OVERHEAD UTILITY GUY MANHOLE STORM LINE ROOF DRAIN DRAIN INLET DRAINAGE EASEMENT STORM DRAINAGE EASEMENT SANITARY SEWER PIPE SANITARY SEWER LATERAL WATER LINE WATER SERVICE LINE WATER METER WATER VALVE AND BOX FIRE DEPARTMENT CONNECTION FIRE HYDRANT ACSA EASEMENT GAS LINE GENERAL CONSTRUCTION NOTES FOR EROSION AND SEDIMENT CONTROL PLANS 1. The plan approving authority must be notified one week prior to the pre -construction conference, one week prior to the commencement of land disturbing activity, and one week prior to the final inspection. 2. All erosion and sediment control measures will be constructed and maintained according to minimum standards and specifications of the Virginia Erosion and Sediment Control Handbook and Virginia Regulations VR 625-02-00 Erosion and Sediment Control Regulations. 3. All erosion and sediment control measures are to be placed prior to or as the first step in clearing. 4. A copy of the approved erosion and sediment control plan shall be maintained on the site at all times. 5. Prior to commencing land disturbing activities in areas other than indicated on these plans (including, but not limited to, off -site borrow or waste areas), the contractor shall submit a supplementary erosion control plan to the owner for review and approval by the plan approving authority. 6. The contractor is responsible for installation of any additional erosion control measures necessary to prevent erosion and sedimentation as determined by the plan approving authority. 7. All disturbed areas are to drain to approved sediment control measures at all times during land disturbing activities and during site development until final stabilization is achieved. 8. During dewatering operations, water will be pumped into an approved filtering device. 9. The contractor shall inspect all erosion control measures periodically and after each runoff producing rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of the erosion control devices shall be made immediately. 10. All fill material to be taken from an approved, designated borrow area. 11. All waste materials shall be taken to an approved waste area. Earth fill shall be inert materials only, free of roots, stumps, wood, rubbish, and other debris. 12. Borrow or waste areas are to be reclaimed within 7 days of completion per Zoning Ordinance section 5.1.28. Y p p 9 13. All inert materials shall be transported in compliance with section 13-301 of the Code of Albemarle. 14. Borrow, fill or waste activity involving industrial -type power equipment shall be limited to the hours of 7:00am to 9:00pm. 15. Borrow, fill or waste activity shall be conducted in a safe manner that maintains lateral support, or order to minimize any hazard to persons, physical damage to adjacent land and improvements, and damage to any public street because o slides, sinking, or collapse. 16. The developer shall reserve the right to install, maintain, remove or convert to permanent stormwater management facilities where applicable all erosion control measures required by this plan regardless of the sale of any lot, unit, building or other portion of the property. 17. Temporary stabilization shall be temporary seeding and mulching. Seeding is to be at 75 Ibs/acre, and in the months of September to February to consist a 50/50 mix of Annual Ryegrass and Cereal Winter Rye, or in March and April to consist of Annual Rye, or May through August to consist of German Millet. Straw mulch is to be applied at 80lbs/100sf. Alternatives are subject to approved by the County erosion control inspector. 18. Permanent stabilization shall be lime and fertilizer, permanent seeding, and mulch. Agricultural grade limestone shall be applied at 90lbs/1000sf, incorporated into the top 4-6 inches of soil. Fertilizer shall be applied at 1000lbs/acre and consist of a 10-20-10 nutrient mix. Permanent seeding shall be applied at 180lbs/acre and consist of 95% Kentucky 31 or Tall Fescue and 0-5% Perennial Ryegrass or Kentucky Bluegrass. Straw mulch is to be applied at 80lbs/100sf. Alternatives are subject to approved by the County erosion control inspector. 19. Maintenance: All measures are to be inspected weekly and after each rainfall. Any damage or clogging to structural measures is to be repaired immediately. Silt traps are to be cleaned when 50% of the wet storage volume is filled with sediment. All seeded areas are to be reseeded when necessary to achieve a good stand of grass. Silt fence and diversion dykes which are collecting sediment to half their height must be cleaned and repaired immediately. 20. All temporary erosion and sediment control measures are to be removed within 30 days of final site stabilization, when measures are no longer needed, subject to approval by the County erosion control inspector. 21. This plan shall be void if the owner does not obtain a permit within 1 year of the date of approval. (Water Protection Ordinance section 17-204G.) 22. Permanent vegetation shall be installed on all denuded areas within nine (9) months after the date the land disturbing activity commenced. (Water Protection Ordinance section 17-207B) VSMP PLAN AMENDMENT BELVEDERE BLOCK 2 OWNER JE LIESFELD CONTRACTOR INC 1851 Bennington Rd Rockville, VA 23146 DEVELOPER Craig Builders 338 Rio Road W Charlottesville, CA 22901 ZONING NMD - Neighborhood Model District ZMA2004-07 Overlays: None DISTRICT Rio SOURCE OF TITLE DB 5215 PG 435 SOURCE OF BOUNDARY AND TOPOGRAPHY Boundary and topographic information provided by Foresight Survey P.C. on October 10, 2021 Supplemental planimetric and topographic information for adjoining parcels provided by Albemarle County GIS . BENCHMARK Datum for topography is NAD 83 FLOODZONE According to FEMA Flood Insurance Rate Map, effective date February 4, 2005 (Community Panel 51003CO279D), this property is not located within a Zone AE 100-year floodplain. RESERVOIR WATERSHED This site is within the Meadow Creek Watershed. This site is a watershed of a public water supply. HUC:020802040401 LAND USE SCHEDULE EXISTING AREA SF AC % Managed Turf 29,229 0.67 100.0% Total PROPOSED 29,229 0.67 Area 100.0% SF AC % Building Pavement/Concrete 4,377 1,266 0.10 0.03 15.0% 4.3% Impervious 5,643 0.13 19.3% Managed Turf 23,586 0.54 80.7% Total 29,229 0.67 100.0% STEEP SLOPES Steep slopes (managed & preserved) are not present on this property. 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, etc., the contractor shall use whatever methods that are necessary to protect structures from damage. Replacement of damaged structures shall be at the contractor's expense. 3. 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. 4. 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. 5. Contractor shall notify and coordinate all work involving existing utilities with utility owners, at least 72 hours prior to the start of construction. 6. Contractor shall immediately report any discrepancies between existing conditions and contract documents to the owner and engineer. 7. 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 the contractor from the responsibility of adherence to the contract and for any error that may exist. 8. All bare areas shall be scarified, limed, fertilized, seeded and mulched. 9. All trees, saplings, brush, etc. shall be removed from within the right of way and the drainage easements. 10. Visibility of all mechanical equipment from the Entrance Corridor shall be eliminated. 11. Retaining walls require separate building permits. 12. All water service lines, sanitary laterals, and sprinkler lines must be visually inspected by the Albemarle County Building Department from the main to the structure. GENERAL CONSTRUCTION NOTES 1. Prior to any construction within any existing right-of-way, including connection to any existing road, a permit shall be obtained from the Virginia Department of Transit (VDOT). This plan as drawn may not accurately reflect the requirements of the permit.Where any discrepancies occur the requirements of the permit shall govern. 2. All materials and construction methods shall conform to the current specifications and standards of VDOT unless otherwise noted. 3. Erosion and siltation control measures shall be provided in accordance with the approved erosion control plan and shall be installed prior to any clearing, grading or other construction. 4. All slopes and disturbed areas are to be fertilized, seeded and mulched. 5. The maximum allowable slope is 2:1 (horizontle:vertical). Where reasonably obtainable, lesser slopes of 3:1 or better are to be acheived. 6. Paved, rip -rap or stabilization mat lined ditch may be required when in the opinion of the County Engineer or designee it is deemed necessary in order to stabilize a drainage channel. 7. All traffic control signs shall conform with the Virginia Manual for Uniform Traffic Control Devices. 8. Unless othrewise noted all concrete pipe shall be reinforced concrete pipe - Class III. 9. All excavation for underground pipe installation must comply with OSHA Standards for the Construction Industry (29 CFR Part 1926). AMENDMENT TO W P0200900065 TAX MAP 62G, PARCEL 2-22 ALBEMARLE COUNTY, VIRGINIA VICINITY MAP SCALE: 1°=1000' Belk GLENW00 n Homes STATION Rio)` SOCA Field House •«, 14z� FREE STATE ROAD (ROU ELVEDERE 651) BLVD s SITE 1 'ALBe Vedere 4 BUSKIN DR. QThe Center at Belvedere r� 'p,JM • o r' a QCircle � r: a r =-d +� Covenant Church Map provided by Google.com SHEET INDEX (8 TOTAL) C1 COVER SHEET C2 EXISTING CONDITIONS C3 GRADING & UTILITY PLAN OVERVIEW C4 GRADING & UTILITY PLAN C5 EROSION NARRATIVE C6 EROSION CONTROL PLAN - PHASE 1 C7 EROSION CONTROL PLAN - PHASE 2 C8 EROSION CONTROL DETAILS SHIMP ENGINEERIN G12. LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM V JU TIN kA. SAIMP ic. Yo.45183 2,4 �SSIONAL E VSMP PLAN AMENDMENT FOR BELVEDERE BLOCK 2 ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.02.08 REVISION: FILE NO. COVER SHEET 21.064 C1 CURVE RADIUS ARC LENGTH CHORD LENGTH CHORD BEARING DELTA ANGLE Cl 43.00' 15.74' 15.65' S 52*28'10" W 20'58'00" C2 266.50' 22.39' 22.39' N 24'08'56" E 4'48'51" C3 266.50' 14.01' 14.00' N 28'09'55" E 3'00'40" C4 266.50' 94.94' 94.44' N 39'58'52" E 20'24'39" C5 266.50' 42.50' 42.45' N 54'44'02" E 9'08'12" C6 266.50' 62.15' 62.01' N 65'59'01" E 13'21'46" C7 270.00' 37.23' 37.20' N 76'38'43" E 7'54'02" C8 197.00' 75.31' 74.86' S 67'46'36" W 21*54'17" C9 197.00' 28.07' 28.05' S 52'44'30" W 8'09'54" C10 197.00' 85.20' 84.53' S 36*16'12" W 24'46'43" C11 197.00' 18.96' 18.95' S 21'05'58" W 5'30'49" BOUNDARY LINE TABLE LINE BEARING DISTANCE L1 N 26'50'53" E 2.62' L2 S 30'17'52" W 4.92' L3 N 17'18'17" W 3.50' L4 S 18'22'43" W 28.14' L5 N 71*41'11" W 6.23' SHIMP ENGINEERING2. LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM V JU TIN kA. S44IMP ic. Yo.45183 a�o� �"" �Z2 w� sstorval., ti VSMP PLAN AMENDMENT FOR BELVEDERE BLOCK 2 ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.02.08 REVISION: FILE NO. 21.064 EXISTING CONDITIONS C2 / TOP —472.41 UGU I - / - - - - uA As ��� -. II-464.92 ucu .ED / ' > \ °\ \ FH / / Sys n 90 CAs � 90 � °j� �9 � Z, / NEW `V'O . ..�490� �aS� ,1 MF:S SIDE / BOUNDARY -p. R°9� CAS qs y SETBACK / - LINE eo a ° - Py 3' L ND o -s,. V.W.- DRAI GE ESMT AS T 1 � PROTECTION a0 2 ' � - 9 a° � skk (DB--4308 PG _ 44 / \ t 4 W 4 DI-7 REVISED MF: a -_ 95° e e° ° N s VLT - --� /p�0h C TOP 69.W47 0PARCEL NIT 7_ _ ` I 10-469. 0 02-0 AC SETBAI K . a. 22'x38'2 NIT 3_4 ' 49 CqS /\/�\ ` I S A: 3' I F UNIT 22'x38' UNIT 5_ s MF UNIT 22'x38'6 UNIT 7_ .. SIDE �.......� he -- 1. 1 Ro TRACK .. i MF UNIT 22'x.3R•8 Iinn-r _ / .o_ -•. NOTE: ONLY INDEX CONTOURS SHOWN ON THIS SHEET SHIMP ENGINEERING2. LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM V JU TIN kA. S44IMP ic. Yo.45183 �a�o� "" la w� � sstorval., ti VSMP PLAN AMENDMENT FOR BELVEDERE BLOCK 2 ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.02.08 REVISION: FILE NO. 21.064 GRADING & UTILITY PLAN OVERVIEW C3 PROJECT DESCRIPTION, GENERAL NOTES, EROSION & SEDIMENT CONTROL NOTES, AND SEQUENCE OF CONSTRUCTION 9:i4AiN�UXYN:�191GP THE SITE CURRENTLY IS A GRASSED LOT. THIS PROJECT PROPOSES (8) EIGHT MULTIFAMILY UNITS, AND (1) ONE SINGLE FAMILY ATTACHED UNIT. THERE WILL BE A SILT FENCE AND (1) ONE SEDIMENT TRAPS TO BE CONSTRUCTED AS A PART OF THE EROSION PLAN. THE TOTAL AREA OF DISTURBANCE IS 0.38 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 TEMPORARY AND PERMANENT EROSION AND SEDIMENT CONTROL MEASURES AS SHOWN ON THE PLAN AND DETAILS. EXISTING SITE CONDITIONS THE SITE CURRENTLY IS A GRASSED LOT. ADJACENT PROPERTIES THE SITE IS BOUNDED BY BELVEDERE BOULEVARD ON THE NORTHWEST SIDE, RUSKIN DRIVE ON THE SOUTHWEST SIDE, WHILE THE NORTHEAST AND NORTHWEST SIDES ARE SURROUNDED BY RESIDENTIAL HOMES, BELVEDERE PL AND BELVEDERE WAY OFF -SITE AREAS THERE ARE NO OFFSITE ACTIVITIES. SOILS THE SITE IS COMPRISED OF: 1- 19B - MINNIENLLE LOAM, 2 TO 7 PERCENT SLOPES, HSG: B 2- 19B - MINNIEVILLE LOAM, 7 TO 15 PERCENT SLOPES, HSG: B CRITICAL EROSION AREAS THERE ARE NO CRITICAL AREAS ON THIS SITE. EROSION & SEDIMENT CONTROLS UNLESS OTHERWISE INDICATED, ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO THE MINIMUM STANDARDS AND SPECIFICATIONS AS SET FORTH IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, LATEST EDITION. THE MINIMUM STANDARDS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL REGULATIONS SHALL BE ADHERED TO UNLESS OTHERWSE WAIVED OR APPROVED BY VARIANCE. TEMPORARY CONSTRUCTION ENTRANCE (CE) - 3.02 A STONE PAD WILL BE CONSTRUCTED AT THE ENTRANCE THE SITE TO PROVIDE A MEANS OF REMOVING SEDIMENT FROM THE TIRES OF CONSTRUCTION VEHICLES LEAVING THE WORK SITE. THE CONTRACTOR SHALL REMOVE ANY MUD FROM THE EXISTING ROAD SURFACE BY MEANS OF SWEEPING AND SHOVELING. STORM DRAIN INLET PROTECTION (IP) - 3.07 THE INSTALLATION OF VARIOUS KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS OR CURB INLET STRUCTURES PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA; LIMITED TO DRAINAGE AREAS NOT EXCEEDING ONE ACRE, AND NOT INTENDED TO CONTROL LARGE, CONCENTRATED STORMWATER FLOWS. STD. AND SPEC. 3.07. SILT FENCE (SF) - 3.05 SILT FENCING WILL BE INSTALLED AS A FIRST STEP IN CONSTRUCTION ACTIVITIES. LOCATION AND DETAILS ARE SHOWN ON THE PLANS. TEMPORARY DIVERSION DIKE (DD) - 3.09 A TEMPORARY DIVERSION DIKE SHALL BE USED TO BOTH DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPROTECTED DISTURBED AREAS TO A STABILIZED OUTLET AND TO DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING FACILITY. LOCATION AND DETAILS ARE SHOWN ON THE PLANS. DUST CONTROL (DC) - 3.39 DUST CONTROL MEASURES IN ACCORDANCE WITH STANDARD AND SPECIFICATION 3.39 SHALL BE IMPLEMENTED ONSITE TO PREVENT AIRBORNE MOVEMENT OF DUST. MEASURES INCLUDE IRRIGATION, MULCHING OR OTHER MEASURES AS OUTLINED IN THE SPECIFICATIONS. TEMPORARY SEDIMENT TRAP (ST) - 3.13 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. TEMPORARY SEEDING ( )TS - 3.31 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 14 DAYS. TEMPORARY SEEDING SHALL BE APPLIED IN CONFORMANCE WITH STD. AND SPEC. 3.31. PERMANENT STABILIZATION OUTLET PROTECTION - 3.18 THE INSTALLATION OF RIPRAP CHANNEL SECTIONS AND/OR STILLING BASINS BELOW STORM DRAIN OUTLETS TO REDUCE EROSION AND UNDER -CUTTING FROM SCOURING AT OUTLETS AND TO REDUCE FLOW VELOCITIES BEFORE STORMWATER ENTERS RECEIVING CHANNELS BELOW THESE OUTLETS. PERMANENT SEEDING (PS) - 3.32 A PERENNIAL VEGETATIVE COVERING SHALL BE ESTABLISHED ON DISTURBED AREAS WITHIN 7 DAYS OF BEING BROUGHT TO FINAL GRADE ON AREAS NOT OTHERWISE PROTECTED. SELECTION OF THE SEED MIXTURE SHALL DEPEND ON THE TIME OF YEAR IT IS TO BE APPLIED ACCORDING TO THE PERMANENT SEED SCHEDULE AS SHOWN ON THE DRAWING. SEEDED AREAS SHALL BE LIMED WHEN NECESSARY AT A RATE OF 2 TONS PER ACRES, AND FERTILIZED AT A RATE OF 1,000 LBS. PER ACRE OF 10-20-10 (10 LBS. PER 1,000 SQUARE FEET) OR EQUIVALENT. MULCHING (MU) - 3.35 ALL SEEDED AREAS SHALL BE MULCHED WITH STRAW IMMEDIATELY FOLLOWING SEEDING OPERATIONS. STRAW MULCH SHALL BE APPLIED AT A RATE OF TWO TONS PER ACRE. 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. 1.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. 2. 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. 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, ETC., THE CONTRACTOR SHALL USE WHATEVER METHODS THAT ARE NECESSARY TO PROTECT STRUCTURES FROM DAMAGE. REPLACEMENT OF DAMAGED STRUCTURES SHALL BE AT THE CONTRACTOR'S EXPENSE. 3. 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. 4. 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. 5. CONTRACTOR SHALL NOTIFY AND COORDINATE ALL WORK INVOLVING EXISTING UTILITIES WITH UTILITY OWNERS, AT LEAST 72 HOURS PRIOR TO THE START OF CONSTRUCTION. 6. CONTRACTOR SHALL IMMEDIATELY REPORT ANY DISCREPANCIES BETWEEN EXISTING CONDITIONS AND CONTRACT DOCUMENTS TO THE OWNER AND ENGINEER. 8. CONTRACTOR SHALL ADJUST ALL APPURTENANCES AS REQUIRED TO MATCH NEW GRADES. THE EXACT LOCATION OF APPURTENANCES SHALL BE COORDINATED 'NTH THE OWNER. 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 TILL BE GENERAL AND WILL NOT RELIEVE THE THE CONTRACTOR FROM THE RESPONSIBILITY OF ADHERENCE TO THE CONTRACT AND FOR ANY ERROR THAT MAY EXIST. EROSION & SEDIMENT CONTROL NOTES: 1. ALL VEGETATIVE AND STRUCTURAL EROSION & SEDIMENT CONTROL (E&S) PRACTICES WILL BE CONSTRUCTED AND MAINTAINED IN ACCORDANCE 'NTH THE MINIMUM SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATION 9VAC25-840-40. 2. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO COMMENCEMENT OF LAND DISTURBING ACTIVITY AND ONE WEEK PRIOR TO FINAL INSPECTION. THIS REQUIREMENT CAN BE WAIVED AT THE DISCRETION OF THE PLAN APPROVING AUTHORITY. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ONSITE AT ALL TIMES. 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTRY EROSION AND SEDIMENT CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN REVIEWING AUTHORTY. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION AND SEDIMENT CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN REVIEWING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABALIZATION IS ACHEIVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALY AND AFTER EACH RUN-OFF PRODUCING STORM EVENT. ANY NECESSARY REPARIS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10.INSTALL AND MAINTAIN CONSTRUCTION ENTRANCES FOR ENTIRE PROJECT AT ALL LOCATIONS WHERE VEHICLES ENTER/LEAVE THE WORK AREA AND WHERE SOIL IS STOCKPILED. 11. MAINTAIN ALL EROSION AND SEDIMENT CONTROL UNTIL THE COMPLETION OF FINAL STABILIZATION. UNLESS OTHERWISE NOTED ON THE PLANS REMOVE ALL EROSION & SEDIMENT CONTROLS FOLLOWING THE ESTABLISHMENT OF A PERMANENT VEGETATIVE COVER AND COMPLETION OF FINAL STABILIZATION. MANAGEMENT STRATEGY AND SEQUENCE OF CONSTRUCTION THE FOLLOWING ARE THE PROPOSED MANAGEMENT STRATEGIES AND DETAILED SEQUENCE OF CONSTRUCTION. REQUIRED PERMITS MUST BE IN -HAND BEFORE WORK BEGINS: PHASE 1 1. INSTALL CONSTRUCTION ENTRANCE ON BELVEDERE WAY 2. INSTALL INLET PROTECTIONS ALONG BELVEDERE BLVD AND BELVEDERE WAY. 3. INSTALL SILT FENCE AROUND THE SEDIMENT TRAP LOCATION AND ALONG THE SIDEWALK FACING BELVEDERE WAY. 4. INSTALL SEDIMENT TRAP AS SHOWN ON THIS PHASE AND ITS DIVERSION. 5. CONTACT THE ENGINEER AND ALBEMARLE COUNTY FOR INSPECTION AND APPROVAL OF ALL E&S CONTROL MEASURES. 6. UPON APPROVAL OF E&S CONTROL MEASURES, BEGIN WHOLESALE CLEARING, GRADING, AND STOCKPILING. REMOVE THE FOUR TREES INSIDE THE LIMITS OF DISTURBANCE AS SHOWN. 7. MAINTAIN SILT FENCE, DIVERSION, AND CONSTRUCTION ENTRANCE. PHASE 2 PHASE 2 1. ADJUST THE SEDIMENT TRAP AS SHOWN ON THIS SHEET WITH THE NEW GRADING. 2. BEGIN CONSTRUCTION OF THE UNITS, AND INSTALLATION OF THE SANITARY LATERAL, WATER SERVICE LINES, ROOFDRAINS AND THE TREES. 3. MAINTAIN ALL E&S CONTROL MEASURES AND STABILIZES THE SITE. 4. CONTACT THE ENGINEER AND THE ALBEMARLE COUNTY FOR INSPECTION AND APPROVAL OF E&S CONTROL MEASURES. 5. UPON APPROVAL OF E&S CONTROL MEASURES, DEWATER AND REMOVE THE SEDIMENT TRAP. STORMWATER MANAGEMENT: WATER QUALITY & QUANTITY: THIS PLAN AMENDS WP0200900065 . THE APPROVED PLANS FOR THIS DEVELOPMENT PREVIOUSLY INCLUDED ALLOCATIONS FOR 1.91AC AS IMPERVIOUS AREA ON THE DEVELOPMENT PARCELS. SEE THE TABLE BELOW FOR A BREAK DOWN OF THE IMPERVIOUS AREA PER SDP201200026: IMPERVIOUS COVER PER SDP201200026 NOTES PROPOSED TOAL SF AC SF AC SF AC 41,956 SF (0.96 AC) ROADS/ALLEYS 41,956 0.96 IS CURRENTLY 41,956 0.96 & PARKING EXISTING. NO PROPOSED CHANGES 12,727 SF (0.29 AC) SIDEWALKS 14,818 0.34 IS CURRENTLY 1,266 0.03 12,727 0.32 EXISTING 10,126 SF (0.23 AC) TOWNHOMES 10,126 0.23 IS CURRENTLY 10,126 0.23 EXISTING. NO PROPOSED CHANGES 2,196 SF (0.05 AC) BUILDINGS 16,488 0.38 CURRENTLY EXISTING 4,356 0.10 6,552 0.15 BUILDING TOTAL 83,388 1.91 5,622 0.13 71,361 1.67 ENVIRONMENTAL CONTROLS 1.CONTRACTOR SHALL PROVIDE AND MAINTAIN ALL ENVIRONMENTAL CONTROL MEASURES SO AS TO COMPLY 'NTH 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. 3. ANY WASTE DISCOVERED DURING THE PROJECT SHALL NOT BE MOVED WITH OUT PRIOR AUTHORIZATION OF THE OWNER AND BE DIRECT -LOADED INTO COVERED ROLL -OFF CONTAINERS FOR TEMPORARY STORAGE PRIOR TO DISPOSAL IN A PERMITTED LANDFILL. EROSION & SEDIMENT CONTROL PERMITTING 1.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. PERMANENT DETENTION PIPE MAINTENANCE 1. CHECK/CLEAR ORIFICE - SEASONALLY 2. CLEAN/REMOVE HEAVY DEBRIS FROM PIPE - SEASONALLY 3. INSPECT TRASH SCREEN & CLEAR DEBRIS - YEARLY 4. INSPECT CULVERT & CLEAR DEBRIS - YEARLY 5. INSPECT ENTIRE DETENTION PIPE SYSTEM & REMOVE SEDIMENT WITH VAC -TRUCK - EVERY 2 YEARS MINIMUM STANDARDS (MS1: ALL APPLICABLE MRGINIA 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. STABILIZATION 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 7 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED AT AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN 14 DAYS. 2. STABILIZATION OF SOIL STOCKPILES: DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES SHALL BE STABILIZED OR PROTECTED 'NTH 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 CITY 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 'NTH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED. 8. 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: WATER QUANTITY AND QUALITY REQUIREMENTS ARE MET SINCE THE TOTAL IMPERVIOUS COVER PROPOSED WITH THIS ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED 'WITHIN 30 DAYS AFTER PLAN IS 1.67 AC WHICH FALLS WITHIN THE APPROVED SDP201200026 ORIGINAL CALCULATIONS (1.91AC). FINAL SITE STABILIZATION OR AFTER TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWSE 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.LOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS: A. CONCENTRATED STORMWATER RUNOFF LEAVING A DEVELOPMENT SITE SHALL BE DISCHARGED DIRECTLY INTO AN ADEQUATE NATURAL OR MAN-MADE RECEIVING CHANNEL, PIPE OR STORM SEWER SYSTEM. FOR THOSE SITES WHERE RUNOFF IS DISCHARGED INTO A PIPE OR PIPE SYSTEM, DOWNSTREAM STABILITY ANALYSES AT THE OUTFALL OF THE PIPE OR PIPE SYSTEM SHALL BE PERFORMED. B. ADEQUACY OF ALL CHANNELS AND PIPES SHALL BE VERIFIED IN THE FOLLOWING MANNER: 1) THE APPLICANT SHALL DEMONSTRATE THAT THE TOTAL DRAINAGE AREA TO THE POINT OF ANALYSIS WITHIN THE CHANNEL IS ONE HUNDRED TIMES GREATER THAN THE CONTRIBUTING DRAINAGE AREA OF THE PROJECT IN QUESTION; OR 2) (A) NATURAL CHANNELS SHALL BE ANALYZED BY THE USE OF A TWO-YEAR STORM TO VERIFY THAT STORMWATER WILL NOT OVERTOP CHANNEL BANKS NOR CAUSE EROSION OF CHANNEL BED OR BANKS. (B) ALL PREVIOUSLY CONSTRUCTED MAN-MADE CHANNELS SHALL BE ANALYZED BY THE USE OF A TEN-YEAR STORM TO VERIFY THAT STORMWATER WILL NOT OVERTOP ITS BANKS AND BY THE USE OF A TWO-YEAR STORM TO DEMONSTRATE THAT STORMWATER WILL NOT CAUSE EROSION OF CHANNEL BED OR BANKS; AND (C) PIPES AND STORM SEWER SYSTEMS SHALL BE ANALYZED BY THE USE OF A TEN-YEAR STORM TO VERIFY THAT STORMWATER WILL BE CONTAINED WITHIN THE PIPE OR SYSTEM. C. IF EXISTING NATURAL RECEIVING CHANNELS OR PREVIOUSLY CONSTRUCTED MAN-MADE CHANNELS OR PIPES ARE NOT ADEQUATE, THE APPLICANT SHALL: 1)IMPROVE THE CHANNELS TO A CONDITION WHERE A TEN-YEAR STORM WILL NOT OVERTOP THE BANKS AND A TWO-YEAR STORM WILL NOT CAUSE EROSION TO CHANNEL THE BED OR BANKS; OR 2) IMPROVE THE PIPE OR PIPE SYSTEM TO A CONDITION WHERE THE TEN-YEAR STORM IS CONTAINED WITHIN THE APPURTENANCES; 3) DEVELOP A SITE DESIGN THAT WILL NOT CAUSE THE PRE -DEVELOPMENT PEAK RUNOFF RATE FROM A TWOYEAR STORM TO INCREASE WHEN RUNOFF OUTFALLS INTO A NATURAL CHANNEL OR WILL NOT CAUSE THE PREDEVELOPMENT PEAK RUNOFF RATE FROM A TEN-YEAR STORM TO INCREASE WHEN RUNOFF OUTFALLS INTO A MANMADE CHANNEL; OR 4) PROVIDE A COMBINATION OF CHANNEL IMPROVEMENT, STORMWATER DETENTION OR OTHER MEASURES WHICH IS SATISFACTORY TO THE VESCP AUTHORITY TO PREVENT DOWNSTREAM EROSION. D. THE APPLICANT SHALL PROVIDE EVIDENCE OF PERMISSION TO MAKE THE IMPROVEMENTS. E. ALL HYDROLOGIC ANALYSES SHALL BE BASED ON THE EXISTING WATERSHED CHARACTERISTICS AND THE ULTIMATE DEVELOPMENT CONDITION OF THE SUBJECT PROJECT. F. IF THE APPLICANT CHOOSES AN OPTION THAT INCLUDES STORMWATER DETENTION, HE SHALL OBTAIN APPROVAL FROM THE VESCP OF A PLAN FOR MAINTENANCE OF THE DETENTION FACILITIES. THE PLAN SHALL SET FORTH THE MAINTENANCE REQUIREMENTS OF THE FACILITY AND THE PERSON RESPONSIBLE FOR PERFORMING THE MAINTENANCE. G. OUTFALL FROM A DETENTION FACILITY SHALL BE DISCHARGED TO A RECEIVING CHANNEL, AND ENERGY DISSIPATORS SHALL BE PLACED AT THE OUTFALL OF ALL DETENTION FACILITIES AS NECESSARY TO PROVIDE A STABILIZED TRANSITION FROM THE FACILITY TO THE RECEIVING CHANNEL. H. ALL ON -SITE CHANNELS MUST BE VERIFIED TO BE ADEQUATE. I. INCREASED VOLUMES OF SHEET FLOWS THAT MAY CAUSE EROSION OR SEDIMENTATION ON ADJACENT PROPERTY SHALL BE DIVERTED TO A STABLE OUTLET, ADEQUATE CHANNEL, PIPE OR PIPE SYSTEM, OR TO A DETENTION FACILITY. J. IN APPLYING THESE STORMWATER MANAGEMENT CRITERIA, INDIVIDUAL LOTS OR PARCELS IN A RESIDENTIAL, COMMERCIAL OR INDUSTRIAL DEVELOPMENT SHALL NOT BE CONSIDERED TO BE SEPARATE DEVELOPMENT PROJECTS. INSTEAD, THE DEVELOPMENT, AS A WHOLE, SHALL BE CONSIDERED TO BE A SINGLE DEVELOPMENT PROJECT. HYDROLOGIC PARAMETERS THAT REFLECT THE ULTIMATE DEVELOPMENT CONDITION SHALL BE USED IN ALL ENGINEERING CALCULATIONS. K. ALL MEASURES USED TO PROTECT PROPERTIES AND WATERWAYS SHALL BE EMPLOYED IN A MANNER WHICH MINIMIZES IMPACTS ON THE PHYSICAL CHEMICAL AND BIOLOGICAL INTEGRITY OF RIVERS STREAMS AND OTHER WATERS OF THE STATE. L. ANY PLAN APPROVED PRIOR TO JULY 1, 2014, THAT PROVIDES FOR STORMWATER MANAGEMENT THAT ADDRESSES ANY FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS SHALL SATISFY THE FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS IF THE PRACTICES ARE DESIGNED TO I. DETAIN THE WATER QUALITY VOLUME AND TO RELEASE IT OVER 48 HOURS; II. DETAIN AND RELEASE OVER A 24-HOUR PERIOD THE EXPECTED RAINFALL RESULTING FROM THE ONE YEAR, 24- HOUR STORM; AND III. REDUCE THE ALLOWABLE PEAK FLOW RATE RESULTING FROM THE 1.5, 2, AND 10-YEAR, 24-HOUR STORMS TO A LEVEL THAT IS LESS THAN OR EQUAL TO THE PEAK FLOW RATE FROM THE SITE ASSUMING IT WAS IN A GOOD FORESTED CONDITION, ACHIEVED THROUGH MULTIPLICATION OF THE FORESTED PEAK FLOW RATE BY A REDUCTION FACTOR THAT IS EQUAL TO THE RUNOFF VOLUME FROM THE SITE WHEN IT WAS IN A GOOD FORESTED CONDITION DIVIDED BY THE RUNOFF VOLUME FROM THE SITE IN ITS PROPOSED CONDITION, AND SHALL BE EXEMPT FROM ANY FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS AS DEFINED IN ANY REGULATIONS PROMULGATED PURSUANT TO § 10.1-562 OR 10.1-570 OF THE ACT. M. FOR PLANS APPROVED ON AND AFTER JULY 1, 2014, THE FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS OF § 10.1-561 A OF THE ACT AND THIS SUBSECTION SHALL BE SATISFIED BY COMPLIANCE 'NTH WATER QUANTITY REQUIREMENTS IN THE STORMWATER MANAGEMENT ACT (§ 10.1-603.2 ET SEQ. OF THE CODE OF VIRGINIA) AND ATTENDANT REGULATIONS, UNLESS SUCH LANDDISTURBING ACTIVITIES ARE IN ACCORDANCE WITH 4VAC50-60-48 OF THE VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) PERMIT REGULATIONS. N. COMPLIANCE WITH THE WATER QUANTITY MINIMUM STANDARDS SET OUT IN 4VAC50-60-66 OF THE VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) PERMIT REGULATIONS SHALL BE DEEMED TO SATISFY THE REQUIREMENTS OF MINIMUM STANDARD 19. SHIMP ENGINEERIN G12. LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM V JU TIN kA. S14IMP ic. Yo.45183 ago 2,4 �SSIONAT., ti� VSMP PLAN AMENDMENT FOR BELVEDERE BLOCK 2 ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.02.08 REVISION: FILE NO. EROSION CONTROL NARRATIVE 21.064 C5 #974 V.W. RAINAGE E MT (DB - 4159 PG _-6 5) J I r I Co 20 Scale: 1 "_ 1 �cs00 \ \� N w I 00'0*� 0 20 40 60 PHASE 1 1. INSTALL CONSTRUCTION ENTRANCE ON BELVEDERE WAY 2.INSTALL INLET PROTECTIONS ALONG BELVEDERE BLVD AND BELVEDERE WAY. 3. INSTALL SILT FENCE AROUND THE SEDIMENT TRAP LOCATION AND ALONG THE SIDEWALK FACING BELVEDERE WAY. 4. INSTALL SEDIMENT TRAP AS SHOWN ON THIS PHASE AND ITS DIVERSION. 5. CONTACT THE ENGINEER AND ALBEMARLE COUNTY FOR INSPECTION AND APPROVAL OF ALL E&S CONTROL MEASURES. 6. UPON APPROVAL OF E&S CONTROL MEASURES, BEGIN WHOLESALE CLEARING, GRADING, AND STOCKPILING. REMOVE THE FOUR TREES INSIDE THE LIMITS OF DISTURBANCE AS SHOWN. 7. MAINTAIN SILT FENCE. DIVERSION. AND CONSTRUCTION ENTRANCE. VOTE ALL SOIL ON THIS SITE IS 21B WITH HSG: B SOIL EROSION & SEDIMENT CONTROL SYMBOLS x —x —x —x [DRAWN TO SCALE] = I = I = I = I > = I I= I I= I I S SHIMP ENGINEERIN G12. LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM V JU$T1NkA. S44IMP ic. Yo.45183 a�o� �"" �Z2 w� sstorval., ti VSMP PLAN AMENDMENT FOR BELVEDERE BLOCK 2 N0. TITLE KEY ALBEMARLE COUNTY, VIRGINIA CE SUBMISSION:2022.02.08 3.02 CONSTRUCTION ENTRANCE SF REVISION: 3.05 SUPER SILT FENCE 3.09 TEMPORARY DIVERSION DIKE 3.13 SEDIMENT TRAP ST 3.07 INLET PROTECTION IP 3.31 TEMPORARY SEEDING TS 3.32 PERMANENT SEEDING FILE NO. � 21.064 3.35 MULCH 3.39 DUST CONTROL © EROSION CONTROL PLAN - LIMITS OF DISTURBANCE LOD PHASE 1 SEDIMENT TRAP DRAINAGE AREA C6 20 Scale: 1 "=2 40'w*� 0 20 40 60 PHASE 2 1. ADJUST THE SEDIMENT TRAP AS SHOWN ON THIS SHEET WITH THE NEW GRADING. 2. BEGIN CONSTRUCTION OF THE UNITS, AND INSTALLATION OF THE SANITARY LATERAL, WATER SERVICE LINES, ROOFDRAINS AND THE TREES. 3. MAINTAIN ALL E&S CONTROL MEASURES AND STABILIZES THE SITE. 4. CONTACT THE ENGINEER AND THE ALBEMARLE COUNTY FOR INSPECTION AND APPROVAL OF E&S CONTROL MEASURES. 5. UPON APPROVAL OF E&S CONTROL MEASURES, DEWATER AND REMOVE THE SEDIMENT TRAP. NOTE ALL SOIL ON THIS SITE IS 21B WITH HSG: B SOIL EROSION & SEDIMENT CONTROL SYMBOLS X —X —X —X [DRAWN TO SCALE] TS PS MU DC NO. TI TILE KEY SHIMP ENGINEERING2. LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM V JU TIN kA. S44IMP ic. Yo.45183 a�o� �"" �Z2 w� sstorval., ti VSMP PLAN AMENDMENT FOR BELVEDERE BLOCK 2 © 3.02 CONSTRUCTION ENTRANCE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: SF 3.05 SUPER SILT FENCE 2022.02.08 3.09 TEMPORARY DIVERSION DIKE REVISION: 3.13 SEDIMENT TRAP ST 3.07 INLET PROTECTION IP 3.31 TEMPORARY SEEDING TS 3.32 PERMANENT SEEDING 3.35 MULCH H FILE NO, 21.064 3.39 DUST CONTROL C � EROSION CONTROL PLAN - LIMITS OF DISTURBANCE LOD PHASE 2 = I I= I I= I I= SEDIMENT TRAP DRAINAGE AREA C7 TEMPORARY DIVERSION DIKE (:mmnnntari gnil )TEMPORARY DIVERSION DIKE C8 Not To Scale 11 GROUND 70' MIN. n FILTER CLOTH ' 6" MIN.I Al SIDE ELEVATION 12' MIN.* VDOT N1 COURSE AGGREGATE * MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS OPERATION FILTER CLOTH RE11Vf LJRI.LL I.LJIV ... -""-" -' "-- 70' MIN. B WASHRACK I (OPTIONAL) POSITIVE DRAINAGE B TO SEDIMENT TRAPPING DEVICE PLAN VIEW SECTION A -A EXISTING PAVEMENT 5:1 MOUNTABLE BERM (OPTIONAL) 3" MIN. 3" MIN. 2 )PAVED CONSTRUCTION ENTRANCE (PCE C8 J Not To Scale GRAVEL CURB INLET SEDIMENT FILTER �\ �-� - GRAVEL FIL RUNOFF WATER SEDIMENT - CONCRETE WIRE MESH FILTERED WATER 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. 3 INLET PROCTION IP) 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 DUST CONTROL (DC) C8 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 lbs/acre. Add 20 lbs/acre Indian grass when slopes are greater than 3:1. May 1 through August 15: Kentucky 31 Fescue - 128 Ibs/acre; Red Top Grass - 2 lbs/acre; Foxtail Millet - 20 Ilbs/acre. Add 20 Ibs/acre Indian grass when slopes are greater than 3:1. August 16 through October 31: Kentucky 31 Fescue - 128 Ibs/acre; Red Top Grass - 2 lbs/acre; Annual Rye - 20 lbs/acre. Add 20 lbs/acre Indian grass on slopes greater than 3:1. November 1 through February 15: Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; Winter Rye - 20 lbs/acre. Add 20 lbs/acre Indian grass on slopes greater than 3:1. 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 Ibs. 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 lbs. 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 nutons). 5 \PERMANENT SEEDING (PS) C8 l' Not To Scale TABLE 3.31-C TEMPORARY SEEDING PLANT MATERIALS, SEEDING RATES, AND DATES w SEEDING RATE NORTH* SOUTHb PLANT 3/1 Sn a/15 2/15 Sn v/1 SPECIES CHARACTERISTICS Acre 1000 ft2 m m b to b ro 4/30 a/15 11/1 4/30 9/I Il/IS OATS 3 be. (up to 100 Ibs., 216e. X - - X - - Ux spring variaiea (e.g., Noble). (puma setiva not Zees they SO lbs.) RYEa 2 be. (up to t IO Ile., 2.5 Ibs. X - X X - X U. for We fell seedinge, winter Seale cerWel not less thin 5016s.) cover. Tolerates cold and low moisture. GERMAN MILLET SO ]be. y,prox. 1 lb. - X - - X - Warm-susoe annual. Dien at first (Setaria iWiral frost. MaY I'e armed m summer mixes. ANNUAL RYFARASS` 0016s. 1'h Ibs. X - % X - X May be added iv mixes. Will (Ig�i p multi-Flomml mow out of most stands. WEEPING IS Ibs. 5'h X - - X - Wam1-season perennial. My LOVEGRASS bunch. Tolerates hot, dry A.P. m roslis curvu6 and acid, infertile soils. May be added to mixes. KOREAN 25 Ibs. Warm seuoo amend legume. LESPEDEZA` Ibs. Tolerates acid soils. May be (laoedess sr ulew added to mixes. • Northern Piedmont and Mountain region. See Plates 3.22-1 and 3.22-2. b Southern Piedmont and Coastal Plain. e May be used as a cover crop with spring seeding. d May be used as a cover crop with fall seeding. X May be planted between Nese dates. ' May D� be planted between these dates. 6 TEMPORARY SEEDING TS C8 Not To Scale 1992 3.35 Source: Va. DSWC TABLE 3.35-A ORGANIC MULCH MATERIALS AND APPLICATION RATES RATES: MULCHES: NOTES: per Acre Per 1000 sq. ft. Straw or Hay 1 � - 2 tons 70 - 9016s. 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 lbs nitrogen per ton. Do not use in fine turf areas. Apply with mulch blower, chip handler, or by hand. Bark Chips 50 - 70 cu. 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. MULCHING MU C8 CONSTRUCTION OF A SILT FENCE (WITH WIRE S UPPOR T) 1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS. TRENCH UPSLOPE ALONG THE LINE OF POSTS. fI11111 Y, III 3. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND IT INTO THE TRENCH. 1.01 FLOW 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. SILT FENCE (SF Not To Scale Sediment Trap Design Data Weir Length DA Wet Di Wet Vol. Dry D2 Dry Vol. No. A B C Ho(ft) H (ft.) Z (ft.) W(ft) (ft.) (Acs.) Vol. (ft) Cy Vol. (ft) Cy (Req.) (Prov.) (Req.) (Prov.) PHASE 1 453.0 482.0 450.0 1.0 3.0 1.5 2.5 3.4 0.56 37.5 2.0 39.0 55 1.0 59.6 PHASE 2 483.0 482.0 480.0 1.0 3.0 1.5 2.5 3.4 0.56 37.5 2.0 38.9 37.5 1.0 59.4 ORIGINAL GROUND ELEV. Area 2 DRY STORAGE ID2 67 CU. YD./ACRE 11 z 1.0' SHIMP ENGINEERIN 3 LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM WET STORAGE T O "• �� 67 CU. YD./ACRE D1 \ FILTER CLOTH ORIGINAL t% (EXCAVATED) GROUND ,2 EL=C ELEV. UN Q V JU TIN IMP *SEE PLATE 3.13-1 COARSE AGGREGATE** CLASS I RIPRAP ic. 0. 45183 CROSS SECTION OF OUTLET 6P 2jglZti w� CLASS I RIPRAP LENGTH (IN FEET) = 6 * DA (IN ACRES) 10� ssloxal G = / / DIVERSION DIKE COARSE AGGREGATE *1 EXCAVATED (/\FILTER CLOTH AREA **COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5 OUTLET (PERSPECTIVE VIEW) 1992 3.13 MINIMUM TOP WIDTH (W) REQUIRED FOR SEDIMENT TRAP EMBANKMENTS ACCORDING TO HEIGHT OF EMBANKMENT (FEET) I-- W -- a x b w _____________ 1.5 0.5 2.0 1.0 2.0 2.0 "r 3.0 2.0 3.5 2.5 2.5 2.5 3.0 xn x "0 3.0 4.5 35 3.0 4.0 5.D an 4.5 rxrAVA1ED rrus u*x_ orvne = *• omcuuE ¢adMD ELN Source: Va. DSWC Plate 3.13-1 TEMPORARY SEDIMENT TRAP VSMP PLAN AMENDMENT FOR BELVEDERE BLOCK 2 ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.02.08 REVISION: FILE NO. EROSION CONTROL DETAILS 21.064 C� Not To Scale