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Home My WebLink AboutWPO202000031 Plan - E&S 2020-06-24VESCP PLAN FOR LEGEND EXISTING NEW DESCRIPTION BOUNDARIES BENCHMARK SITE PROPERTY LINE ADJACENT PROPERTY LINE BUILDING SETBACK PARKING SETBACK SITE TEXT 10 10 PARKING COUNT TOPOGRAPHY INDEX CONTOUR INTERVAL CONTOUR 311.5 x x1� SPOT ELEVATION 311.5 TC x x' TOP OF CURB ELEVATION 311.5 TW x x1 TOP OF WALL ELEVATION 311.5 BW x x1 BOTTOM OF WALL ELEVATION - STREAM STREAM BUFFER 100 YEAR FLOODPLAIN BUILDING BUILDING RETAINING WALL STAIRS EDGE OF PAVEMENT ROAD CENTERLINE FRONT OF CURB BACK OF CURB CG-12 TRUNCATED DOME SIDEWALK BIKE PARKING HANDICAP ACCESSIBLE AISLE HANDICAP PARKING MATERIAL ° CONCRETE RIPRAP ASPHALT EC-2 MATTING EC-3 MATTING WETLAND TREELINE X X FENCE UTILITY UTILITY POLE m GUY WIRE OHU OHU OVERHEAD UTILITY UGU UGU UNDERGROUND UTILITY STORM O STORM MANHOLE q qp DROP INLET STORM SEWER ROOF DRAIN SANITARY 0 0 SANITARY MANHOLE SANITARY SEWER MAIN S S SANITARY SEWER LATERAL WATER W W WATER LINE 0 0 WATER METER 0 WATER METER VAULT FIRE HYDRANT FIRE DEPARTMENT CONNECTION GAS GAS = GAS LINE EASEMENTS CONSTRUCTION GRADING ACCESS SIGHT DISTANCE UTILITY STORMWATER FACILITY MAINTENANCE STORMWATER ACCESS DRAINAGE SANITARY WATERLINE GASLINE NOTE: 1. THE SIZE OF THE SYMBOLS MAY VARY FROM WHAT IS SHOWN. OWNER SAMUEL F JR BYERS OR JOANN BYERS 2856 LAUREL COVE ROAD CHARLOTTESVILLE VA, 22901 PLAN PREPARATION Shimp Engineering, P.C. 912 East High Street Charlottesville, VA 22902 (434) 227-5140 ZONING RURAL AREAS MAGISTERIAL DISTRICT Rivanna SOURCE OF TITLE TAX MAP 46-33HO : DB730/529 TAX MAP 47-1 C : DB 730/525 SOURCE OF BOUNDARY AND TOPOGRAPHY ALBEMARLE COUNTY GIS BENCHMARK Datum for topography is NAVD 88 FLOODZONE According to FEMA Flood Insurance Rate Map, effective date February 4, 2005 (Community Panel 51003CO285D), this property is not located within a Zone AE 100-year floodplain. RESERVOIR WATERSHED This site is within the North Fork Rivanna River -Flannigan Branch This site is not within a watershed of a public water supply. EXISTING USE Wooded and Grassed lot with a Residential House PROPOSED USE Soil Stockpile 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 (horizontal: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 otherwise 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). BORROW, FILL, AND WASTE AREA NOTES -SEC 18-5.1.28. A./B. a. Each borrow, fill or waste area shall be subject to the following: 1. Each active borrow, fill or waste area shall be shaped and sloped so that no undrained pockets or stagnant pools of water are created to the maximum extent reasonably practicable as determined by the program authority. All undrained pockets and stagnant pools of water resulting from drainage shall be treated as required by the Virginia Department of Health to eliminate breeding places for mosquitoes and other insects. 2. No fill or waste area shall be located either within the flood hazard overlay district, except as authorized by section 30.3 of this chapter, or in any stream buffer area as defined by Chapter 17 of the Code of Albemarle. (Amended 10-3-01; 7-3-02) 3. Each fill or waste area shall be only for the disposal of soil or inert materials. The disposal of any other materials in a fill or waste area is prohibited. 4. Each borrow, fill or waste area shall be reclaimed within seven days of completion of the borrow, fill or waste activity, or such later time authorized by the program authority for reclamation activities of a seasonal nature. Reclamation shall include, but not be limited to, restoring the area so that it approximates natural contours; shaping and sloping the area to satisfy the requirements of subsection (a)(1); covering the area with clean fill to a minimum depth of two feet in order to allow for permanent stabilization and reclamation; and establishing a permanent vegetative ground cover; provided that the program authority may reduce the minimum depth of clean fill to one foot if the area is unlikely to be redeveloped. 5. The zoning administrator, or the program authority for those borrow, fill or waste areas subject to subsection (b), may require the owner to submit a reasonable performance bond with surety, cash escrow, letter of credit, any combination thereof, or such other legal arrangement acceptable to the county attorney, to ensure that measures could be taken by the county or the program authority at the owner's expense should he fail, after notice is given to perform required reclamation work specified in the notice. The amount of the bond or other surety shall be based on unit pricing for new public or private sector construction in Albemarle County, Virginia, and a reasonable allowance for estimated administrative costs and inflation which shall not exceed 25 percent of the estimated cost to initiate and complete the reclamation of the borrow, fill or waste area, and to comply with all other terms and conditions of the plan or narrative required by subsection (b). If reclamation work is required to be taken by the county or the program authority upon the failure of the owner to do so, the county or the program authority may collect the reasonable cost of the work directly from the owner, to the extent that the cost exceeds the unexpended or unobligated amount of the surety. Within 60 days after the reclamation work is completed and inspected and approved by the county engineer, the bond or other surety, or any unexpended or unobligated portion thereof, shall be refunded to the owner. b. If the aggregate area of a borrow, fill or waste activity will be greater than 10,000 square feet, then, as part of any permit issued pursuant to section 17-207 of the Code of Albemarle, the program authority shall first approve a plan or a narrative for such activity that satisfies the requirements of subsection (a) and the following: 1. All inert materials shall be transported in compliance with section 13-301 of the Code of Albemarle. Before a transporting vehicle leaves the parcel or parcels on which the borrow, fill or waste area is located, it shall be cleaned so that no inert materials outside of the vehicle's load -bed can be deposited on a public street. 2. The borrow, fill or waste area and the access roads thereto shall be treated or maintained to prevent dust or debris from blowing or spreading onto adjacent properties or public streets. Depending on the anticipated intensity and duration of the activity and the character of the development of adjoining properties, the program authority may require setback, fencing and landscaping requirements as deemed appropriate, but which shall not exceed the requirements of sections 30.4.6, 30.4.7 and 30.4.9 of this chapter. 3. Borrow, fill or waste activity involving industrial -type power equipment shall be limited to the hours of 7:00 a.m. to 9:00 p.m., except in cases of a public emergency declared pursuant to section 2-1003 of the Code of Albemarle. 4. Borrow, fill or waste activity shall be conducted in a safe manner that maintains lateral support, in order to minimize any hazard to persons, physical damage to adjacent land and improvements, and damage to any public street because of slides, sinking, or collapse. 5. The placement of fill or waste shall be completed within one year of its commencement, except for reclamation activities and any other activities associated with the final stabilization of the area. The program authority may extend the date of completion upon the written request of the applicant, demonstrating that factors beyond the control of the applicant prevented the completion within the one-year period. The program authority may then extend the permit for a period of time that, in its sole discretion, is determined adequate to complete the work. 6. In lieu of a plan or narrative, the program authority may accept a contractual agreement between the Virginia Department of Transportation and its contractor for a public road project; provided that the program authority determines that the agreement satisfies at least to an equivalent extent the requirements and intent of this section. (§ 5.1.28, 7-6-83; Ord. 01-18(6) , 10-3-01; Ord. 02-18(5) , 7-3-02) BYERS FILL SITE WP02020-00031 TAX MAP 46, PARCEL 33 H 0 & TAX MAP 47-1 C ALBEMARLE COUNTY, VIRGINIA VICINITY MAPSCALE : 1°=1000' T RIDGE MEADOWFIELD U szr i1 A1(ES J S E S m€ E5 ea4 JEFFERSON VILLAGE •5��k 5l'r 3 'LANFORD HILLS 1;•'j Better LMng T Components p,o9� PROFFIT RIDGE SHEET INDEX C1 COVER SHEET C2 EROSION CONTROL NARRATIVE C3 EXISTING CONDITIONS C4 EROSION CONTROL PLAN - PHASE 1 C5 EROSION CONTROL PLAN - PHASE 2 C6 EROSION CONTROL DETAILS TE aurel Cave Road IMAGE PROVIDED BY GOOGLE MAPS HIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM v JU M M. SHIMP Y ic. 0.45183 �_SSIONAL '��G VESCP PLAN FOR BYERS FILL SITE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2020.05.26 REVISION: 1) 2020.06.16 FILE NO. COVER SHEET SHEET C1 of C6 20.026 C1 PROJECT DESCRIPTION, GENERAL NOTES, EROSION & SEDIMENT CONTROL NOTES, AND SEQUENCE OF CONSTRUCTION PROJECT DESCRIPTION THE SITE CURRENTLY IS A WOODED AND GRASSED LOT MOSTLY WITH ONE SINGLE FAMILY RESIDENTIAL HOUSE. THE PROJECT IS PROPOSING A FILL OF SOIL AND THE SOURCE OF THE MATERIAL FOR THIS SITE WILL BE HAULED FROM HTC HOTEL WPO-2018-00031 THERE WILL BE A SILT FENCE AND A SEDIMENT TRAP TO BE CONSTRUCTED AS A PART OF THE EROSION PLAN. THE TOTAL AREA OF DISTURBANCE IS 0.99 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 WOODED AND GRASSED LOT MOSTLY WITH ONE SINGLE FAMILY RESIDENTIAL HOUSE. ADJACENT PROPERTIES THIS PROPERTY IS BORDERED FROM THE EAST BY LAUREL COVE RD, WHILE ON THE NORTH, SOUTH AND WEST IS BORDERED BY WOODED LOTS AND RESIDENTIAL HOMES. OFF -SITE AREAS THERE ARE NO OFF -SITE AREAS Yi71! THE SITE IS COMPRISED OF: 1. 27B - ELIOAK LOAM, 2 TO 7 PERCENT SLOPES, HSG: B 2. 27C - ELIOAK LOAM, 7 TO 15 PERCENT SLOPES, HSG: B 3. 28D3 - ELIOAK CLAY LOAM, 15 TO 25 PERCENT SLOPES, SEVERELY ERODED, HSG: B 4. 39D - HAZEL LOAM, 15 TO 25 PERCENT SLOPES, HSG: B 5. 93D - WATT CHANNERY SILT LOAM, 15 TO 25 PERCENT SLOPES, HSG: B 6. 93E - WATT CHANNERY SILT LOAM, 25 TO 45 PERCENT SLOPES, HSG: B CRITICAL EROSION AREAS THERE ARE NO CRITICAL AREAS FOR 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 OTHERWISE 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. 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 (DID) - 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 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. SOIL STABILIZATION BLANKETS AND MATTING - 3.36 SOIL STABILIZATION MATTING SHALL BE APPLIED IN THE CONVEYANCE AREAS OF THE DESIGNED DIVERSIONS TO HELP REDUCE VELOCITIES AND AID IN THE ESTABLISHMENT OF VEGETATION. A DETAIL SHOWING THE PROPER MATERIALS AND INSTALLATION IS SHOWN ON THE 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 WITH 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 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. EROSION & SEDIMENT CONTROL NOTES: 1. ALL VEGETATIVE AND STRUCTURAL EROSION & SEDIMENT CONTROL (E&S) PRACTICES WILL BE CONSTRUCTED AND MAINTAINED IN ACCORDANCE WITH 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. STORMWATER MANAGEMENT (NA) THE STORMWATER MANAGEMENT STRATEGY FOR THIS SITE SHALL BE ACHIEVED BY MAINTAINING SHEET FLOW AT THE WEST SIDE OF THE LIMITS OF DISTURBANCE, WHILE IT WAS DETERMINED THAT A CONVEYANCE CHANNEL IS NEEDED ON THE EAST AND SOUTH EAST SIDE OF THE LIMITS OF DISTURBANCE ON THE SITE. BECAUSE THE LOCATION OF THE SHEET FLOW DID NOT CHANGE DOWNSTREAM NOR DID THE VOLUME OF THE CONCENTRATED RUNOFF, THE DOWNSTREAM PROPERTIES ARE NOT IMPACTED BY NEITHER THE CONCENTRATED RUNOFF NOR BY THE SHEET FLOW DOWNSTREAM. THEREFORE, THE DESIGN IS IN COMPLIANCE WITH THE MS-19 AND ITS CONDITIONS ARE MET. CONVEYANCE CHANNEL CALCULATIONS: THIS CONVEYANCE CHANNEL IS 193.1 FT LONG. IT MAINTAINS A 3:1 SIDE SLOPE WITH A 1-FOOT DEPTH AND A TOTAL WIDTH OF 6 FEET FOR A LENGTH OF 173.7 FT, THEN THE CONVEYANCE CHANNEL STARTS OPENING UP GRADUALLY TO BLEND IN WITH THE NATURAL GRADE FOR THE REMAINING 19.4 FT. THE CONVEYANCE CHANNEL IS DESIGNED TO RETURN TO THE NATURAL GRADE OF THE SITE TO ACHIEVE NO INCREASE IN THE RUNOFF ON THIS SITE AFTER THE STOCKPILE. THE CONVEYANCE CHANNEL HAS A MINIMUM SLOPE OF 8.0% AND A MAXIMUM SLOPE OF 30%. TO ENSURE ADEQUACY, THE LD-268 FORM WAS USED TO PERFORM THE CALCULATIONS FOR THE 2-YEAR VELOCITY AND THE 10-YEAR CAPACITY. THE RATIONAL EQUATION WAS USED FOR CALCULATING THE FLOW (Q) DISCHARGE FOR THE 2-YEAR AND THE 10-YEAR. THE FLOWRATE FOR THE 2-YEAR STORM WAS DETERMINED TO BE 1.89 CFS WITH A VELOCITY OF 4.97 FT/SEC, WHILE THE 10-YEAR FLOWRATE IS 2.62 CFS WITH A DEPTH OF 0.52 FT. FURTHER, THE LD-268 CALCULATIONS SHOW THE NEED FOR EC-3 TYPE I MATTING. THE CONVEYANCE CHANNEL IS DESIGNED TO MANAGE RUNOFF FROM BOTH THE 2-YEAR AND THE 10-YEAR STORMS. THE CONVEYANCE CHANNEL HAS CAPACITY FOR THE 10-YEAR STORM AND WILL NOT HAVE EROSIVE VELOCITIES FROM THE 2-YEAR STORM. 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 AND SEDIMENT TRAP. 2. INSTALL DIVERSIONS 3. CONTACT THE ENGINEER AND ALBERMALE COUNTY FOR INSPECTION AND APPROVAL OF ALL E&S CONTROL MEASURES. 4. UPON APPROVAL OF E&S CONTROL MEASURES, BEGIN WHOLESALE CLEARING, GRADING, AND STOCKPILING. 5. INSTALL SILT FENCE. PHASE 2: 1. MAINTAIN DIVERSIONS, AND CONSTRUCTION ENTRANCE. 2. INSTALL THE CONVEYANCE CHANNEL. 3. REMOVE THE SEDIMENT TRAP 4. ESTABLISH AND MAINTAIN PERMANENT STABILIZATION, INCLUDING VEGETATION OF ALL SLOPES AND GRASSED AREAS. 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. ENVIRONMENTAL CONTROLS 1. CONTRACTOR SHALL PROVIDE AND MAINTAIN ALL ENVIRONMENTAL CONTROL MEASURES SO AS TO COMPLY WITH LOCAL ORDINANCES, STATE AND FEDERAL LAWS AND REGULATIONS APPLICABLE TO WATER POLLUTION IN WATERS OF THE STATE AND IN INTERSTATE WATERS. 2. CONTRACTOR SHALL MINIMIZE THE POTENTIAL FOR AIR POLLUTION BY THE USE OF EMISSION CONTROL EQUIPMENT ON CONTRACTOR OPERATED EQUIPMENT, SHUT -DOWN OF MOTORIZED EQUIPMENT WHEN NOT IN USE, AND ACTIVELY CONTROLLING DUST EMISSIONS THROUGHOUT THE PROJECT. 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. MINIMUM STANDARDS (MS) ALL APPLICABLE VIRGINIA EROSION AND SEDIMENT CONTROL REGULATIONS AND MINIMUM STANDARDS SHALL BE ADHERED TO DURING ALL PHASES OF CONSTRUCTION. THESE INCLUDE, BUT ARE NOT LIMITED TO THE FOLLOWING: 1. STABLIZATION OF DENUDED AREAS: PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO BARE AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE, BUT WILL REMAIN DORMANT OR UNDISTURBED FOR LONGER THAN 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 WITH SEDIMENT TRAPPING MEASURES. THE APPLICANT IS RESPONSIBLE FOR TEMPORARY PROTECTION AND PERMANENT STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS WELL AS SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE. 3.PERMANENT VEGETATIVE COVER A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMANENTLY STABILIZED. PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVE THAT, IN THE OPINION OF THE 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 OREQUAL TO THREE ACRES. THE SEDIMENT BASIN SHALL BE DESIGNED AND CONSTRUCTED TO ACCOMMODATE THE ANTICIPATED SEDIMENT LOADING FOR THE LAND DISTURBING ACTIVITY. THE OUTFALL DEVICE OR SYSTEM DEVICE SHALL TAKE INTO ACCOUNT THE TOTAL DRAINAGE AREA FLOWING THROUGH THE DISTURBED AREA TO BE SERVED BY THE BASIN. 7. CUT AND FILL SLOPES: CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. SLOPES THAT ARE FOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED. & CONCENTRATED RUN-OFF DOWN CUT OR FILL SLOPES: CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME, OR SLOPE DRAIN STRUCTURE. 9.WATER SEEPS FROM A SLOPE FACE: WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED. 10.STORM SEWER INLET PROTECTION: ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT SEDIMENT -LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT 11.STABILIZATION OF OUTLETS: BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL. 12.WORK IN LIVE WATERCOURSES: WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING CONSTRUCTION. NONERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS. 13.CROSSING A LIVE WATERCOURSE: WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES MORE THAN TWICE IN ANY SIX MONTH PERIOD, A TEMPORARY STREAM CROSSING CONSTRUCTED OF NONERODIBLE MATERIALS SHALL BE PROVIDED. 14.APPLICABLE REGULATIONS: ALL APPLICABLE FEDERAL, STATE AND LOCAL REGULATIONS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET. 15.STABILIZATION OF BED AND BANKS THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED. 16.UNDERGROUND UTILITIES: UNDERGROUND UTILITIES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER CRITERIA: a.NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME. b.EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES c.EFFLUENT FOR DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED THROUGH APPROVED SEDIMENT TRAPPING DEVICE, OR BOTH, AND DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING STREAMS OR OFFSITE PROPERTY. d.MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION. e. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS. f. APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH. 17.CONSTRUCTION ACCESS ROUTES: WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO PAVED SURFACES. WHERE SEDIMENT IS TRANSPORTED ON TO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED BY SHOVELING OR SWEEPING AND TRANSPORTED TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. THIS PROVISION SHALL APPLY TO INDIVIDUAL LOTS AS WELL AS TO LARGER LAND DISTURBING ACTIVITIES. 18.TEMPORARY E&S CONTROL MEASURE REMOVAL: ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM AUTHORITY. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENT. 19.ADEQUACY OF RECEIVING CHANNELS: PROPERTIES AND WATERWAYS DOWNSTREAM FROM THE DEVELOPMENT SITE SHALL BE PROTECTED FROM SEDIMENT DEPOSITION, EROSION AND DAMAGE, DUE TO INCREASES IN VOLUME, VELOCITY AND PEAK FLOW RATES OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF 24-HOUR DURATION.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 WITH 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. Himp ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM 0 v JU M M. SHIMP a ic. 0.45183 83G �rI 6 � w O C �"VS101VAL ECG VESCP PLAN FOR BYERS FILL SITE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2020.05.26 REVISION: 1) 2020.06.16 FILE NO. EROSION CONTROL NARRATIVE SHEET C2 of C6 20.026 C2 loe \ / / —32 �, PG /IkG: f�E: SIN X 1 JIDANN 7-15 PG 374 / I EA � / ENN // USE: / / r 0\ / / SIN 1)RIMARY/ // / ---_r __ �i LAND EX. TREE v /v TMP 467,32 / LINE (TO \ \\ 9 6. 4418� PG // // / \ EAINk P 0' REMAIN) v `v A NIN G: / SOILS 'dc 27 B / 0000, X. TREE / � vv v �� , � �♦ I� LINE (TBR) / / LIMITS OF EX. TREE / ISTILI RB�NCE LI N EJTB R)SHIM ENGINEERING EX. TREE/ / / /\ / LAND PLANNING - PROJECT MANAGEMENT / LINE (TQ REMAIN[) 912E.HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM 508 -504--- —500— / I I I I TMP 47-1 C/ / / SAMUEL F JR 13� R� & JOANN �P � i i U JU IN M. SHIMP 28 6 LAUREL OVE ROA _ / / ic. i1o. 45183 qHARL TESVILLE w �, 22901 1 1 \ \\--------_— 492 �/ / // II DEK"730 525 —// // �SSIONAL'VG \ PRIMARZ G: RU AREAS — AN RE TIAL—SINGLE / I \-_-----------'-488- /// \\ , AMILY CRITICAL — -484 //` / I SLOPES GIS \� \ — / / VESCP PLAN FOR I� v _ 7/// , , , _ __�_— BYERS FILL SITE / HAROLD P & ELSIE M CLATIERBLfCK— — — — ZONING: RURAL AREAS\�/ // / — LAND USE: RESIDENTIAL = = J / I \ — i ALBEMARLE COUNTY, VIRGINIA � I Pd=FAMILY / I \ � � — — � � /__---// SUBMISSION: — / %- - // 2020.05.26 �� /�_ _ — �� / REVISION: 1)2020.06.16 � / / / 46 /-�3 // / ♦ // / / 0 P/G 524 / L----- ♦2-8D3 � J�YCE M /IERNDON RIMARY ZONIN/G: RURAL AREAS L/AND USE: /RESIDENTIAL -Z— SINGLE—FAMILY FILE NO. �.,/ I / EXISTING CONDITIONS / // / — -Z SHEET C3ofC6 40 0 4 _ —80— 120 Scale: 1"=40' C3 / `4v SOIL EROSION & SEDIMENT CONTROL SYMBOLS I SYMBOL N0. TITHE KEY-32 I / ' / PG / [DRAWN TO SCALE] TS PS DC 3.02 STONE CONSTRUCTION ENTRANCE S fE: 3.05 SILT FENCE O �� / &N 3.10 TEMPORARY FILL DIVERSION DD Z \� 3.13 TEMPORARY SEDIMENT TRAP ST 3.31 TEMPORARY SEEDING 3.32 PERMANENT SEEDING 3.35 MULCH � 3F�o JOANN 3.39 DUST CONTROL �� l j l /Y LIMITS OF DISTURBANCE 7-15 SEDIMENT TRAP DRAINAGE AREA / / �PG 374 RDI G / TW = TOP OF WET STORAGE TW / ENN /% FEA SE: � / \\' BW = BOTTOM OF WET STORAGE g w PRIMARY' 525 525 520 520 515 515 510 SEDIMENT 510 U TRAP 505 505 GRADE -�z J1.4 D =3 500 500 z ILTER TORAGE 495 CLOTH 495 490 490 485 485 0 0� N � 481% n � 80 +00 10+50 11+0044 SEDIMENT TRAP PROFILE C 4 J 1 "=10' VERTICAL 1"=30' HORIZONTAL LAND TMP 467,32 9�. 441 E� PG / SEAL P 0' A NING: PS I I 27B NEW /TREE / \\ yX LINE /�� u> / / DR NAGE ARE 2.30 AC / EX TREE 1 L I N / / ♦ \ I / LIMITS\OF I ,/\ I I II l /l♦ AREA R ADIST 0.99 NCE AC\ 51 — / -524- 82 6 04 wW4�0 I 4 TMP 47-10/ i �Oo 04�� I � I � /SAf�UEL F JR B�' R� & JOANN �P � I I 21\ 6 LAUREL OVE ROA _ — / 4 — I— _ �_ ..1, _, I_„_./ qHARL TESVI\LE V", 22901 1 // \\ \\----------—,492'— // I i I // \ DB!�\730 525 I I PRIMAR�l'Z G: RU AREAS / AN RE TIAL—SINGLE / I \\ \---------___——488— /// \\ / AMILY —// CRITICAL —484 ` I SLOPES GIS —71 / HAROLD P 8c ELSIE M CLATIERBUCK— — — — \ — — ERIMARY ZONING: RURAL AREAS— _ — LAND USE: RESIDENTIAL SIN= FAMILY �� _ / / / / I ♦ I - ---2-8D3/ 0 P/G 524 / , L—_----- ♦ --- / /X�YCE M /HERNDON RIMARY ZONIN/G: RURAL AREAS- / L/AND USE: 'RESIDENTIAL -Z—- - SIN,GLE—FAMILY 10, / 40 0/ 4 / _ —80— — 120 Scale: 1 "=40' ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM v JU IN M. SHIMP Y ic. i1o.45183 o -SSIONAL '��G VESCP PLAN FOR BYERS FILL SITE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2020.05.26 REVISION: 1) 2020.06.16 FILE NO. 20.026 II EROSION CONTROL PLAN - PHASE 1 SHEET C4 of C6 / "�4v SOIL EROSION & SEDIMENT CONTROL SYMBOLS �I ♦ ' ' /' / / I SYMBOL N0. TITHE KEY —32 PG— / 3.02 STONE CONSTRUCTION ENTRANCE�- Sf�E:��—— X X 3.05 SILT FENCE 3.10 TEMPORARY FILL DIVERSION \ / / / // , Z� / 3.31 TEMPORARY SEEDING TS PS 3.32 PERMANENT SEEDING M 3.35 MULCH DC 3.39 DUST CONTROL W J10ANN LIMITS OF DISTURBANCE �� (l l /y / 7-15 PG 374 RDI G / / EA / ENN // SE: / / SIN / PRIMARY' / LAND ENTRENCH / /r i m 6' -I MATTING 6" EC-3 10-YR �Q� TMP 467,32 DEPTH MATTING S� - �. 8 PG III —I 0.52 F441/ T I —I I 9 \ \ s E A INk P 0' —III=III = —III—III— 11=III— 1=11_I=1 N I N G: I — TYPICAL DITCH SECTION DITCH SECTION DITCH LINING CHANNEL 10—YR FLOW 10—YR DEPTH 2—YR FLOW 2—YR VELOCITY CHANNEL CHANNEL DEPTH (FT) (CFS) (FT) (CFS) (FT/SEC) WIDTH SIDE SLOPE EC-3 1 Matting 1.0 2.62 0.52 1.89 4.97 6 3:1 TYPICAL DITCH DETAILS C5 Not To Scale C11ITOCKII-LJ AXON DRAWING OF CONVEYANCE CHANNEL FLATTING AT THE END Not To Scale 06 TS PS \ \ \\ OILS 27B ' NEW TREE LINE �� \\ /' I 1♦� I / � ♦` I� / / E . TREE � LIMI�S\OF / DISTURBANCE -524- / AREA = 0.99 AC - 51 6' WIDE CONVEYANCE CHANNEL EC \3/ / MATTING I AND SEED -504- —500— TMP 47 SAMUEL F JR 13� RCS & JOANN 21�6 LAUREL OVE ROA qHARL?fiTESVI\LE 1 1 \ \\_--------- —492- DEK*\ 730 525 FADE END �OF / // \ PRIMAR�l'Z G: RU AREAS DIYCH TO / AN RE TIAL—SINGLE 488— /// / \\ , AMILY LOPES. / —484 i` / REl 7/ / HAROLD P 8c ELSIE M CLATIERBLfCK——— — \ \ ERIMARY ZONING: RURAL AREAS / CRITICAL \ � ' / / SLOPES GIS \ Ile — LAND USE: RESIDENTIAL = = J / --&N E FAMILY - ----"333333333� D/ 0 P/G 524 / / L—_----- ♦ _-- / /X�YCE M /HERNDON RIMARY ZONIN/G: RURAL AREAS- / LAND USE: 'RESIDENTIAL -Z—- - SIN,GLE—FAMILY /� 40 0/ 4 / _ —80— — 120 Scale: 1 "=40' ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM v JU IN M. SHIMP Y ic. i1o.45183 o -SSIONAL '��G VESCP PLAN FOR BYERS FILL SITE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2020.05.26 REVISION: 1) 2020.06.16 FILE NO. 20.026 II EROSION CONTROL PLAN - PHASE 2 SHEET C5 of C6 C5 II TABLE 3.39-A ADHESIVES USED FOR DUST CONTROL Water Application Dilution Type of Rate Adhesive (Adhesive: Water) Nozzle Gallons/Acre Anionic Asphalt Emulsion Latex Emulsion Resin in Water Acrylic Emulsion (Non -Traffic) Acrylic Emulsion 7:1 Coarse Spray 1,200 12.5:1 Fine Spray 235 4:1 Fine Spray 300 7:1 Coarse Spray (Traffic) 3.5:1 Coarse Spray r_i_'�DUST CONTROL DC C6 Not To Scale 450 350 TABLE 3.31-C TEMPORARY SEEDING PLANT MATERIALS, SEEDING RATES, AND DATES 10 N �. 00 w SEEDING RATE NORTHa SOUTHb PLANT 3/i 5/1 /15 2/is s/t 9n SPECIES CHARACTERISTICS Acre 1000 ftZ to to to :1/1 to to to 4/30 8/15 4/30 9/1 tl/15 OATS 3 bu. (up to 100 lbs., 2 lbs. X - Use spring varieties (e.g., Noble). Avena saliva not less than 50 lbs.) RYEd 2 bu. (up to 110 lbs., 2.5 lbs. X - X X - X Use for late fall seedings, winter Sale cereale not less than 50 lbs.) cover. Tolerates cold and low moisture. GERMAN MILLET 50 lbs. app 4 TEMPORARY SEEDING TS 1992 3.35 C6 Not To Scale TABLE 3.35-A ORGANIC MULCH MATERIALS AND APPLICATION RATES RATES: MULCHES: NOTES: Per Acre Per 1000 sq. ft. Straw or Hay 1 k - 2 tons 70 - 90 lbs. Free from weeds and coarse (Minimum 2 matter. Must be anchored. tons for Spread with mulch blower winter cover) or by hand. Fiber Mulch Minimum 35 lbs. Do not use as mulch for 1500 lbs. winter cover or during hot, dry periods.* Apply as slurry. Corn Stalks 4 - 6 tons 185 - 275 lbs. Cut or shredded in 4-6" lengths. Air-dried. Do not use in fine turf areas. Apply with mulch blower or by hand. Wood Chips 4 - 6 tons 185 - 275 lbs. Free of coarse matter. Air- dried. Treat with 12 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. Air - Free of coarse matter. Air - or yds. dried. Do not use in fine Shredded turf areas. Apply with Bark mulch blower, chip handler, or by hand. * When fiber mulch is the only available mulch during periods when straw should be used, apply at a minimum rate of 2000 lbs./ac. or 45 lbs./1000 sq. ft. Source: Va. DSWC 2 MULCHING MU C6 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 lbs/acre; Red Top Grass - 2 lbs/acre; Foxtail Millet - 20 lbs/acre. Add 20 lbs/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 lbs. per acre of 10-20-10 (10 lbs. per 1,000 square feet) or equivalent. For Temporary Seeding: Seeded areas shall be limed at a rate of 2 tons per acre, and fertilized at a rate of 600 lbs. per acre of 10-20-10 (10 lbs. per 1,000 square feet) or equivalent. 3-""N PERMANENT SEEDING (PS) C6 / Not To Scale 70' MIN, 1 3' A FILTER CL❑TH 6" MIN. I A SIDE ELEVATION EXISTING GROUND v Lu i tti COURSE AGGREGATE * MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS OPERATION RE11Vr LjmLr_i1 t-Lirc-mr- I r- _� CONSTRUCTION ENTRANCE T❑ SEDIMENT TRAPPING DEVICE PLAN VIEW Not To Scale CE EXISTING PAVEMENT 5:1 MOUNTABLE BERM (❑PTI❑NAL) 10' MIN. EXISTING PAVEMENT 10' MIN. 1 Ig1-►111\(t►711�1� Sediment Trap Design Data Weir Length DA Wet D1 Wet Vol. Dry D2 Dry Vol. No. A B C H (ft.) Z (ft.) (ft.) (Acs.) Vol. (ft.) Cy Vol. (ft') Cy AREA 1 AREA 2 (Req.) (Prov.) (Req.) (Prov.) 1 504.0 501.0 496.0 4.0 3.0 13.8 2.30 154.1 4.0 154.4 154.1 3.0 210.2 1,334.0 2,450.0 ORIGINAL GROUND ELEV. Area 2 1'I Z DRY STORAGE D2 67 CU. YD./ACRE N EL=B Area 1 WET STORAGE 67 CU. YD./ACRE FILTER CLOTH ORIGINAGROUND (EXCAVATED) ROUND EL=C ELEV. *SEE PLATE 3.13-1 COARSE AGGREGATE CLASS I RIPRAP CROSS SECTION OF OUTLET CLASS I RIPRAP LENGTH (IN FEET) = 6 * DA (IN ACRES) I /DIVERSION DIKE / COARSE AGGREGATE r K / EXCAVATED FILTER CLOTH AREA _ice **COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5 OUTLET (PERSPECTIVE DEW) 6 TEMPORARY SEDIMENT TRAP ST C 6 Not To Scale TEMPORARY DIVERSION DIKE Comnanted Sail 4.5' min. TEMPORARY DIVERSION DIKE (DD) Not To Scale 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. 3. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND IT INTO THE TRENCH. FLOW 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. HIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM o U JU fN M. SHIMP a ic. o.45183 -� G �rI2G � I w O �' �"S`sIONAL ECG VESCP PLAN FOR BYERS FILL SITE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2020.05.26 REVISION: 1) 2020.06.16 FILE NO. EROSION CONTROL DETAILS SHEET C6 of C6 20.026 SILT FENCE (SF Not To Scale C6