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HomeMy WebLinkAboutWPO202100068 VSMP - SWPPP 2022-03-14� oe Al COUNTY OF ALBEMARLE 9 Department of Community Development tt 401 McIntire Road, North Wing Charlottesville, Virginia 22902-4596 '=� t Tel. (434) 296-5832 * Fax (434) 972-4126 1'thY;t•+tr Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: APPROVED Project Name: Nystrom Driveway by the Albemarle County Community Developpment Department Date 03/14/22 Address: TMP 7-29A File WP0202100068 Shiffletts Mill Road, Albemarle County Prepared by: Name: Roudabush, Gale & Associates Inc., Nicole Jamison 999 tad St. SE Charlottesville, VA 434-977-0205 Prepared for: Name: Jonathan Nystrom- 12417 Grove Ave. Richmond, VA SWPPP Preparation Date: February 10, 2022 (This document is to be made publicly available according to 9VAC25-880-70, Part II, section D) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County CONTENTS: (from Albemarle County Code Sec. 17405) 1. Registration statement 2. Notice of general permit coverage 3. Nature of activity General Site Information Sequence of Major Activities 4. Erosion and Sediment Control Plan. Minimum Standards Vegetative and Structural Practices 5. Stormwater Management Plan 6. Pollution Prevention Plan. (A) Plan Showing Pollution Prevention Activities and Prevention Practice (B) Sources of Pollutants, Locations, and Prevention Practices (C) Non-stormwater discharges (D) Persons Responsible for Pollution Prevention Practices (E) Response and Reporting Practices (F) Pollution Prevention Awareness Material Management Practices/Spill Prevention Hazardous Products Product Specific Practices 7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload allocation, and exceptional waters. Name of Receiving Waters Measures for Applicable TMDL 8. Qualified personnel 9. Signed Certification 10. Delegation of authority. 11. General permit copy 12. Inspection logs 13. Additional Information Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 1. Registration statement Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 2. Notice of general permit coverage (This notice is to be posted near the main entrance according to 9VAC25-880-70, Part II, section C.) (Provide a copy of the DEQ coverage letter when obtained) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 3. Nature of activity GENERAL SITE INFORMATION This project proposes to build a driveway access across two live streams with prefabricated bridges. There is to be no disturbance to the stream bed with this Erosion and Sediment Control Plan. The current conditions of this lot consist of approximately 30.57 acres of vacant land that crosses Buck Mountain and Muddy Creeks. Approximately 17.60 acres of the property is in the 100-year flood plain. Total disturbed area is 1.60 acres. The driveway will cross both creeks as shown on the E&SC Plan and the approved Flood Development Permit provided. The rural lot is bound by adjacent rural properties on the north and east. The property is bound to the south by Shiffletts Mill Road. Critical areas include the floodplain area and stream banks. SEQUENCE OF MAJOR ACTIVITIES 1. Prior to any land disturbance, contractor is to have surveyor flag clearing limits. No clearing or grading is allowed outside of limits. Permanent seeding shall be applied to areas where final grade is reached. 2. Install construction entrance to gain access to the site. Install silt fence, as indicated on the plans, ensure that silt fence is placed 1 foot on the downhill side of all sill and or abutments so there is a s little earth moving activities along the stream bank as possible. No stream disturbances shall occur with this Erosion and Sediment Control Plan. 3. Place bridges on concrete sill or abutments 4. Build the stormwater conveyance channel as shown on sheet 3 of the plans. 5. Upon final stabilization and with the approval of the E&SC inspector exterior measures may be removed. NOTE: It shall be the contractor or owners' responsibility to adhere to requests from the County's E&SC inspector to add or modify E&S measures during construction. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 4. Erosion and Sediment Control Plan. (Provide a reduced, I lx17 copy of the latest Erosion and Sediment Control Plan. Do not reference only.) Approved erosion and sediment control plans for Nystrom Driveway are incorporated by reference as part of this Stormwater Pollution Prevention Plan. Approved plans are included in this SWPPP binder. Minimum Standards 1. Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final grade is reached on any portion of the site. Temporary soil stabilization shall be applied within seven days to denuded areas that may not be at final grade but will remain dormant for longer than 14 days. Permanent stabilization shall be applied to areas that are to be left dormant for more than one year. 2. During construction of the project, soil stock piles and borrow areas shall be stabilized or protected with sediment trapping measures. The applicant is responsible for the temporary protection and permanent stabilization of all soil stockpiles on site as well as borrow areas and soil intentionally transported from the project site. 3. 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 achieved that is uniform, mature enough to survive and will inhibit erosion. 4. 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 measures shall be applied to earthen structures such as dams, dikes and diversions immediately after installation. 6. Sediment traps and sediment basins shall be designed and constructed based upon the total drainage area to be served by the trap or basin. a. The minimum storage capacity of a sediment trap shall be 134 cubic yards per acre of drainage area and the trap shall only control drainage areas less than three acres. b. Surface runoff from disturbed areas that is comprised of flow from drainage areas greater than or equal to three acres shall be controlled by a sediment basin. The minimum storage capacity of a sediment basin shall be 134 cubic yards per acre of drainage area. The outfall system shall, at a minimum, maintain the structural integrity of the basin during a 25-year storm of 24-hour duration. Runoff coefficients used in runoff calculations shall correspond to a bare earth condition or those conditions expected to exist while the sediment basin is utilized. 7. 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. 8. 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. Whenever water seeps from a slope face, adequate drainage or other protection shall be provided. 10. 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. Before newly constructed stormwater conveyance channels or pipes 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. 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. Non -erodible material shall be used for the construction of causeways and cofferdams. Earthen fill may be used for these structures if armored by non -erodible cover materials. 13. When a live watercourse must be crossed by construction vehicles more than twice in any six-month period, a temporary vehicular stream crossing constructed of non -erodible material shall be provided. 14. All applicable federal, state and local requirements pertaining to working in or crossing live watercourses shall be met. 15. The bed and banks of a watercourse shall be stabilized immediately after work in the watercourse is completed. 16. Underground utility lines shall be installed in accordance with the following standards in addition to other applicable criteria: Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County 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 from dewatering operations shall be filtered or passed through an approved sediment trapping device, or both, and discharged in a manner that does not adversely affect flowing streams or off -site property. d. Material used for backfilling trenches shall be properly compacted in order to minimize erosion and promote stabilization. e. Re -stabilization shall be accomplished in accordance with this chapter. f. Applicable safety requirements shall be complied with. 17. lwhere construction vehicle access routes intersect paved or public roads, provisions shall be made to minimize the transport of sediment by vehicular tracking onto the paved surface. Where sediment is transported onto a paved or public road surface, the road surface shall be cleaned thoroughly at the end of each day. Sediment shall be removed from the roads 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 development lots as well as to larger land -disturbing activities. 18. All temporary erosion and sediment control measures shall be removed within 30 days after final site stabilization or after the temporary measures are no longer needed, unless otherwise authorized by the vescp authority. Trapped sediment and the disturbed soil areas resulting from the disposition of temporary measures shall be permanently stabilized to prevent further erosion and sedimentation. 19. Properties and waterways downstream from development sites shall be protected from sediment deposition, erosion and damage due to increases in volume, velocity and peak flow ra to of stormwater runoff for the stated frequency stone of 24-hour duration in accordance with the following standards and criteria. Stream restoration and relocation projects that incorporate natural channel design concepts are not man-made channels and shall be exempt from any flow rate capacity and velocity 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 100 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 10-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 10-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 10-year storm will not overtop the banks and a two- year storm will not cause erosion to the channel, the bed, or the banks; 2. Improve the pipe or pipe system to a condition where the 10-year storm is contained within the appurtenances; 3. Develop a site design that will not cause the pre -development peak runoff rate from a two-year storm to increase when runoff outfalls into a natural channel or will not cause the pre -development peak runoff rate from a 10-year storm to increase when runoff outfalls into a man-made 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 Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County 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. 1. 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; 2. Detain and release over a 24-hour period the expected rainfall resulting from the one year, 24-hour storm; and (ill) 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 § 62.1-44.15:54 or 62.1-44.15:65 of the act. M. in. For plans approved on and after July 1, 2014, the flow rate capacity and velocity requirements of § 62.1- 44.15:52 A of the act and this subsection shall be satisfied by compliance with water quantity requirements in the stormwater management act (§ 62.1- 44.15:24 et seq. Of the code of Virginia) and attendant regulations, unless such land -disturbing activities (i) are in accordance with provisions for time limits on applicability of approved design criteria in 9vac25-870-47 or grandfathering in 9vac25-870-48 of the Virginia stormwater management program (VSMP) regulation, in which case the flow rate capacity and velocity requirements of §62.1-44.15:52 A OF the act shall apply, OR (II) are exempt pursuant to §62.1-44.15:34 C 7 of the act. n. Compliance with the water quantity minimum standards set out in 9vac25-870-66 of the Virginia stormwater management program (VSMP) regulation shall be deemed to satisfy the requirements of this subdivision 19. VEGETATIVE AND STRUCTURAL PRACTICES 1. Temporary Construction Entrance (CE)- 3.05 2. Silt Fence (SF)- 3.05 3. Culvert Inlet Protection (CIP)- 3.08 4. Temporary Diversion Dike (DD)- 3.09 5. Stormwater Conveyance Channel (SCC)- 3.17 6. Outlet Protection (OP)- 3.18 7. Temporary Seeding (TS)- 3.31 8. Permanent Seeding (PS)- 3.32 Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County �j SITE DATA OWNER: JONATHAN NYSTROM 12417 GROVE AVE RICHMOND VA 23220 PLAN PREPARER: ROUDABUSH, GALE & ASSOCIATES, INC. 999 SECOND ST SE CHARLOTTESVILLE, VA. 22902 (434)-977-0205 TAX MAP PARCEL No: 7-29A PARCEL AREA: 30.57 ACRES ZONING: RURAL AREAS EXISTING USE: VACANT PROPOSED USE: SINGLE FAMILY DETACHED BUILDING HEIGHT: 35' MAXIMUM MAGISTERIAL DISTRICT: WHITE HALL TOPOGRAPHY: (LIDAR) GENERATED FROM TERRAIN DATA FOR THE UNITED STATES AND ITS TERRITORIES USING USGS 10 AND 30 METER DIGITAL ELEVATION MODEL (DEMS) FROM THE NATIONAL ELEVATION BOUNDARY: BOUNDARY INFORMATION IS GIS DATUM: VERTICAL - NAVD 88; HORIZONTAL - NAD 83 FLOODPLAIN: THE DEVELOPMENT ON THE SUBJECT PROPERTY IS LOCATED WITHIN "ZONE A" AS SHOWN ON FLOOD INSURANCE MAP COMMUNITY PANEL NUMBER 51003CO105D EFFECTIVE DATE: FEB 4, 2008. RELATED APPROVALS: FDP202100003 THE RIPARIAN PROTECTION AREAS ARE SHOWN PER GIS DRIVEWAY SLOPE NOT TO EXCEED 16.0%. DRIVEWAY CULVERT STA 20+50 Invert Elev Dn (ft) = 729.00 Calculations Pipe Length (ft) = 17.00 Qmin (cfs) Slope (%) = 2.94 Qmax (cfs) Invert Elev Up (ft) = 729.50 Tailwater Elev (ft) Rise (in) = 15.0 Shape = Circular Highlighted Span (in) = 15.0 Qtotal (cfs) No. Barrels = 1 Qpipe (cfs) n-Value = 0.012 Qovertop (cfs) Culvert Type = Circular Concrete Veloc Dn (ft/s) Culvert Entrance = Square edge w/headwall (C) Veloc Up (ft/s) Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5 HGL Dn (ft) HGL Up (ft) Embankment Hw Elev (ft) Top Elevation (ft) = 733.00 Hw/D (ft) Top Width (ft) = 10.00 Flow Regime Crest Width (ft) = 50.00 Elevm 734,11 739m 732.w 731:® 730-m 729.W DRIVEWAY CULVERT STA 20.50 = 2.54 = 2.54 = (dc+D)/2 = 2.54 = 2.54 = 0.00 = 2.55 = 4.03 = 729.94 = 730.14 = 730.41 = 0.73 = Inlet Control Its, Depth(M 1■■I E 720.00 6 2 4 6 8 10 12 14 15 18 20 22 24 26 cmaY)arGalrem HHOL - Embank Resch.07) EROSION AND SEDIMENT CONTROL LEGEND 3.02 ENOTRANCETION CE 3.05 SILT FENCECULVERT SF 3.08 CIP PROTECTION 3.09 DD . � RARY DIVEROSIION DIKE 3.17 SCC STORMCHAONNEL NVEYANCE 3.18 OP OUTLET PROTECTION 3.31 T EE DIING Y 3.32 P ERMENANEDING T®-- S *REFERENCE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK (VESCH) FOR DETAILS REGARDING INDIVIDUAL CONTROL MEASURES. I► I[T*TA91--111]=16]Yto]:[99Sflg1WAN IEel I CULVERT DA C = 0.40 A = 0.97 AC Tc=5min Q10 = 2.54 cfs NYSTROM DRIVEWAY EROSION & SEDIMENT CONTROL PLAN CLEAN WATER DIVERSION EAST C = 0.40 A = 1.44 AC Te = 5 min Q10 = 3.77 cfs ALBEMARLE COUNTY, VIRGINIA TM P 7-29A CLEAN WATER DIVERSION WEST C = 0.40 A = 0.30 AC Te = 5 min Q10 = 0.79 cfs SCC TYPICAL SECTION SCC1 KEY IN MATTING 6"-9" EC-3 Protective Linina VICINITY MAP SCALE: 1°=1000 FEET SHEET INDEX 0.9 0.5 0.3 CA Tc 12 Q2 Slope Allow n select n=.03 n=.05 n=.015 110 Q10 DEP Type of Lining STA STA WS CA WS CA WS CA Inc Acc Nft Vel Vel Qn VEL DEP on DEP SCC 6 19 18 10 0.021 30 0.035 300 0.207 0.262 0.262 5.0 5.5 1.43 0.050 4.0 0.05 5.25 0.07 2A5 0.40 0.02 0.31 7.07 1.85 0.29 EG-3 18 17 10 0.021 30 0.035 300 0.207 0.262 0.524 5.7 5.3 2.76 0.040 4.0 0.05 5.68 0.14 2.65 0.53 0.04 0.41 6.84 3.59 0.41 EC-3 17 16 5 0.01 30 0.035 20 0.014 0.059 0.583 6.3 5.1 2.96 0.140 4.0 0.05 9.25 0.15 4.32 0.43 0.04 0.33 6.63 3.87 0.48 EC-3 16 15 5 0.01 20 0.023 10 0.007 0.04 0.623 6.7 5.0 3.10 0.150 4.0 0.05 9.60 0.15 4.48 0.43 0.05 0.33 6.52 4.06 0.49 EC-3 15 14.5 5 0.005 5 0.003 10 0.003 0.012 0.635 7.1 4.9 3.09 0.040 4.0 0.05 5.85 0.15 2.73 0.56 0.05 0.43 6.40 4.07 0.49 EC-3 SCC2 ROADSIDE DITCH CALCULATION Protective Lining 0.9 0.5 0.3 CA I Te 1 12 1 Q2 I I Slope I Allow I n select I n=.03 I n=.05 I n=.015 STAI STA IWSI CA IWSI CA I WS I CA I he I Ace I I I I I Nft I Vel I I Vel I Qn I VEL JDEPI Qn I DEP 110 Q10 DEP Type of Lining SCC 6 24 23 10 0.021 5 0.006 5 0.003 0.03 0.03 5.0 5.5 0.16 0.150 4.0 0.01 2.15 0.14 0.00 0.11 7.07 0.21 0.29 EC-3 23 22 10 0.021 5 0.006 20 0.014 0.04 0.07 5.8 5.2 0.37 0.150 4.0 5.63 0.02 2.63 0.20 0.01 0.15 6.81 0.48 0.41 EC-3 22 21 10 0.021 5 0.006 200 0.138 0.164 0235 6.4 5.0 1.18 0.150 4.0 MO.O54.60 7.55 0.06 3.52 0.30 0.02 0.23 6.60 1.55 0.48 EC-3 21 20.5 10 0.01 5 0.003 300 0.104 0.117 0.351 6.9 4.9 1.73 0.040 4.0 5.06 0.09 2.36 0.45 0.03 0.34 6.46 2.27 0.49 EC-3 SITE SHEET 1---------- COVER SHEET SHEET 2---------- EROSION & SEDIMENT CONTROL PLAN SHEET 3---------- EROSION & SEDIMENT CONTROL DETAILS SHEET 4---------- STREAM BUFFER MITIGATION PLAN SHEET 5---------- STREAM BUFFER MITIGATION PLAN LIMITS OF DISTURBANCE = 1.60 Ac QUALIFIES FOR AGREEMENT IN LIEU OF PLAN FOR SWIM PLAN BECAUSE THE DRIVEWAY IS BEING CONSTRUCTED FOR THE PURPOSE OF ESTABLISHING THE FIRST SINGLE-FAMILY DWELLING ON THE SUBJECT PROPERTY [§ 17-403.B]. PERMANENT SEEDING* MIXTURES FOR THE PIEDMONT AREA TOTAL LBS. PER ACRE MINIMUM CARE LAWN - COMMERCIAL OR RESIDENTIAL - KENTUCKY 31 OR TURF -TYPE TALL FESCUE - IMPROVED PERENNIAL RYE GRASS - KENTUCKY BLUEGRASS HIGH MAINTENANCE LAWN - KENTUCKY 31 OR TURF -TYPE TALL FESCUE GENERAL SLOPE (3:1 OR LESS) - KENTUCKY 31 FESCUE - RED TOP GRASS - SEASONAL NURSE CROP* LOW -MAINTENANCE SLOPE (STEEPER THAN 3 - KENTUCKY 31 FESCUE - RED TOP GRASS - SEASONAL NURSE CROP* - CROWN VETCH** 175-200 LBS. 95-100% 0-5% 0-5% 200-250 LBS. 100% 128 LBS. 2 LBS. 20 LBS. TOTAL 150 LBS. 108 LBS. 2 LBS. 20 LBS. 20 LBS. TOTAL 150 LBS. *USE SEASONAL NURSE CROP IN ACCORDANCE WITH SEEDING DATES AS STATED BELOW: FEBRUARY 16TH THROUGH APRIL 30TH. . . . . . . . . . . . ANNUAL RYE MAY 1ST THROUGH AUGUST 15TH . . . . . . FOXTAIL MILLET AUGUST 16TH THROUGH OCTOBER 31ST. . . . . . . . . . . .ANNUAL RYE NOVEMBER 1ST THROUGH FEBRUARY 15TH . . . . . . . . . . ANNUAL RYE ** SUBSTITUTE SERICEA LESPEDEZA FOR CROWNVETCH EAST OF FARMVILLE, VA (MAY THROUGH SEPTEMBER USE HULLED SERICEA, ALL OTHER PERIODS, USE UNHULLED SERICEA.)IF FLATPEA IS USED IN LIEU OF CROWNVETCH, INCREASE RATE TO 30 LBS./ACRE, ALL LEGUME SEED MUST BE PROPERLY INOCULATED. WEEPING LOVEGRASS MAY BE ADDED TO ANY SLOPE OR LOW MAINTENANCE MIX DURING WARMER SEEDING PERIODS ADD 10-20 LBS. ACRE IN MIXES. s TEMPORARY SEEDING* TABLE 3.31-R ACCEPTABLE TEMPORARY BGEOING-PL4NT MATERIAI..S 'QUICK REFERENCE FOR Ai.L REGIONS' Rat, Planting Dates Seed, llbs /aec,l Sept.1-Feb.15 50/5UMuof Amual Ryegress n®�O IOU Cereal (Winter) Rye (sesle mreale) Feb. 16 - Apr. 30 Annual Ryep. 60 - IOU (Lolium multi 0omm) May 1- Aug 31 German Millet 50 (Setana italica) Source: Va. DSWC * TEMPORARY SEEDING 3.31 TO BE USED TO STABILIZE DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD OF 14 DAYS. APPLY PERMANENT SEEDING 3.32 ONCE FINAL GRADE HAS BEEN ACHIEVED. TABLE 3.31-C TEMPORARY SEEDING PLANT MATERIALS, SEEDING RATES, AND DATES 3 SEEDING RATE NORTHa SOUTHb N PLANT SPECIES 311 5/1 8115 V15 511 9/1 CHARACTERISTICS Acre 7- 1000 RZ to to to to to to 4/30 8/15 11/1 4130 9/1 11115 OATS 3 bu. (up to 100 lb.., Z tbs. X - - X - - Use spring varieties (c.g., Noble). (Avena sativa) not less than 50 lbs.) RYEd 2 bu. (up to 110 lbs., 2.5 lbs. X - X X - X Use for late faE seedings, winter (See , ereab not less than 50 lbs.) cover. Tolerates cold and low mo,smm. GERMAN MILLET 50 lbs. approx. I III. - X - - X - Warm -season annual. Dies at first Setaria italica frost. May be added to summer mixes. ANNUAL RYEGRASSe 60 tbs. I'A lbs. X - X X - X May be added in mixes. Will Lo( lium multi-flomin mow out of most stands. WEEPING is tbs. Sh oze. - X - - X - Warm-seasam perennial. May LOVEGRASS bunch. Tolerates hot, dry slopes (Eramstis curvula) and acid, infertile soils. May be added to mixes. KOREAN 25 Ibs. approx. 1 h X X - X X - Warm season annual legume. LESPEDEZA` lbs. Tolerates acid soils. May be (Lesudem sti Maces added to mixes. a Northern Piedmont and Mountain region. See Plates 3.22-1 and 3.22-2. b Southem Piedmont and Coastal Plain- - 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 these dates. - May not be planted between these dates. A S. N W N Q J 8 N O N r--z Lu U"S Z Q=J Q I ¢ w ° T ¢ rn C1 w 2 G °o a Z m 0Fn = o { U D UQ o z� rn C?w C7 a g rn T aw a a QC Lj w o O J a o Z a w UO o N WwQ mom¢ a rnt=i3U �yTa of �r�c u � Dustin E. Greene Lic. No. 55833 �¢ A9oAr 2/11/22 0�� estOHAL sf Qz z �_ U) i 00 Li YY J li z W N W U Q Ill w Q w o LL Z > °C ° `r' W W z x i�o 0 O O Q H � xIf 06 Q � O 0 cr Q VJ 1 W Wz z 0 a a c� 0 a 0 z o� o� a � wz o � 0 V N N � w N a v 0 0 (V 0 z DESIGNED BY: DEG DRAWN BY: ARC CHECKED BY: DEG DATE: 03-19-2021 SCALE: AS SHOWN JOB: 20-1962 FILE: 20-1962 SHEET: � OF 05 W x w 0 U ( GA\TMPROI\201962-Nys Mnirveway CrosingvmG\E&5%andwg, 2/11/20222:11U2 PM,Au DPDF(Geneml Dmumentnion)pr3 r l APPROXIMATE 1 1 � I // j •C 100YR FLOODPLAIN LOCATION -- STREAM EDGE OF CREEK 10YR WSE \ LIMITS OF DISTURBANCE WPO BUFFER (GIS) Q I / 1\ SEC�B CKMOUNTAIN\ / 100YR WSE C6N�AINME�IT �� C EEK CROSSING ICAL Al1Ei / �� a- QS QRAGELAVATORY/ I X'� �`' / SF ❑ ©� PS 12+ rt oIf S PS ' \ 10YR WSE 1` LIMITS OF DISTURBANCE (0.13AC) 1 v� 10YR LIMITS / \ / I i I \ L, If 1> lr ••'il � / J ) it .' � I / i / / / / /� /�/ J/OP // < �� (. /l // / f• / ' /' / WPO BUFFER (GIS) /' /� \/•: i I •I /' /' // /' / 1 / / • • I F / /' / /' / /' ' / / / / /' /' / / / �j / / ' / , 10YRWSE 1' / / / // 40*/ 1 .•.y: / I ! I / / / 40'i k \\ •�04, // /��v� /� �� // _�OOYRWSE /�/ j / ••41f/ � 1 �GWPO BUFFED (GI$) I / / 7� R. ��l I l / �� 4OF / / J 40001�+ MUDDY RUN LIMITS OF/ CROSSING c� v�/ '� DISTUABAI)ICEK. i� /• SF /400ly /+ •••�+� I• / / / l / �/+ `� �` l l / ' / / / / / / i I / Is it I / / / / / / +i ' 11 / '� / /' / / / / 1,00e DRAIN �/ �• ��• I I / % + ��'/ / // i �/ / l / // // / / i /FIEL' / I APPROXIMATE ..• v •� LOCATION S I X // / // / / // /' /' // / / I / / /' // sa • �• 1 STREAM EDGE,OF �� `'I I I / / / // // ,/ / / / / /J /I / l / LU', �i CREEKS •.� I N I /V l �'\ I II II ) \ I\ I I I 1 I If � � � �� •� � II 1 � � 11 \1 \II I\ �I 11 \II � 111 \�\ I\ I � \I II I I � /l / //'/''/ �/' //' //' //' � � // �/' /' / 30 0 30 60 90 SCALE: 1" = 30' -c A. � .f�+/�+%T107 /�/+�7�.r`�► �/' I I I \\ \ II I \I \ \\ \\ 1 1 11 \\ \ \ \\ \\ ! v �v v / t .. � .I/ I I I I I � I I 1♦ \ , A � 1 I A 1� V A\ V v v � \ \ \ \ \ I _SF 1 } LL, 66' A \V A V\ \ 00 m I II I I 1 1 I I 1 \ v vv vv vv �v \ \ \ \ I I I II I \ I V I I V DRAIN vV v v vv �� a \ V A v x, l I 1 1 I A v v v 40• V A A FIELD \ \ \ \ \ J n F \ \ MACHLJNE THE SHEEN v 1 \ 1 30 0 SCALE: 1" = 30 SEQUENCE OF CONSTRUCTION 1. PRIOR TO ANY LAND DISTURBANCE, CONTRACTOR TO HAVE SURVEYOR FLAG CLEARING LIMITS. NO CLEARING OR GRADING IS ALLOWED OUTSIDE OF LIMITS. PERMANENT SEEDING SHALL BE APPLIED TO AREAS WHERE FINAL GRADE IS REACHED. 2. INSTALL CONSTRUCTION ENTRANCE TO GAIN ACCESS TO THE SITE. INSTALL SILT FENCE, AS INDICATED ON THE PLANS, ENSURE THAT SILT FENCE IS PLACED 1 FOOT ON THE DOWNHILL SIDE OF ALL SILL AND OR ABUTMENTS SO THERE IS AS LITTLE EARTH MOVING ACTIVITIES ALONG THE STREAM BANK AS POSSIBLE. NO STREAM DISTURBANCES SHALL OCCUR WITH THIS EROSION & SEDIMENT CONTROL PLAN. 3. PLACE BRIDGES ON CONCRETE SILL OR ABUTMENTS. 4. BUILD THE STORM WATER CONVEYANCE CHANNELS AND CLEAN WATER DIVERSIONS AS SHOWN. 5. UPON FINAL STABILIZATION AND WITH THE APPROVAL OF THE E&SC INSPECTOR EXTERIOR MEASURES MAY BE REMOVED. NOTE: IT SHALL BE THE CONTRACTOR OR OWNERS RESPONSIBILITY TO ADHERE TO REQUESTS FROM THE COUNTY'S E&S INSPECTOR TO ADD OR MODIFY E&S MEASURES DURING CONSTRUCTION. UNETYK EXISTING TREELINE PROPOSED TREELINE 10YR WATER SURFACE 100YR FLOODPLAIN ••••••••••••••I GIS WP BUFFER LIMITS OF DISTURBANCE STREAM WATERLINE CUT/FILL AREA 6" CRUSHER RUN 2" - 1 LAYER #3 STONE 10' 0.5' ,27 CROSS _SLOPE 0.5' 3O 6O 9O DRIVEWAY TYPICAL SECTION STA 11+28 to 11+75 STA 12+10 to 13+93 I w ado N o a am �> 0'D Z Z�J Q Q Q C W o W k V3 OU aZ o ¢ m $ { O UQ U 0 D o Z0 U)> ~ T Z > rn N m tr EL w > a Q N w O O a o � J Z w a a U U N w m Q a mw= rn m U z 0 a U 0 w a O o W� p4 F Z w a� a0 0 r o� Z 0 f4 wCD N 0 O N O z DESIGNED BY:j DEG DRAWN BY: I ARC CHECKED BY71 DEG o}�$�yTa of plc o 7 cl s Dustin nEE.Greene Lic. No. -6 55833 t,6 �e 2/11/22 r'43IONAL $N6 az �- U Op U O N L U� J1 W L z� U aF LwG w\ G / 0 � < w p :E U) 06 X L Oc ` 0 U F Wz 2 DATE: 03-19-2021 SCALE: 1' =20' JOB: 20-1962 FILE: 20-1962 SHEET: Z OF 05 ( GA\TMPROI\2019U-Nys mOirve Cursing\MG\EMManRxg,2 112M2:1155PM,Aut DPUF(Gene,lDxumenaion)pA 0% SECTION A —A FILTER APRON LINING SHALL BE A PLAN VIEW SECTION A -A FILTER APRON LINING SHALL BE 'E OUTLET TO AT AREA WITH DEFINED CHANNEL d 50 — — d 11 KEY IN 6"-9"; RECOMMENDED FOR ENTIRE PERIMETER n PIPE OUTLET TO WELL-DEFINED CHANNEL *** d 50 0% — d- KEY IN 6"-9"; RECOMMENDED FOR ENTIRE PERIMETER Outlet Protection Table Outlet Pipe Apron Upstream Downstream Stone Structure Diameter Discharge (cfs) Length (ft) Apron Width Apron Width (ft) Depth Riprap Stone Size (in) (ft) (in) 1 12 2.54 6 3 9 12 Class Al CWD EAST N/A 3.77 6 4 10 12 Class Al CWD WEST N/A 1 0.79 6 4 10 12 Class Al *** ENSURE THAT OUTLET PROTECTION IS BUILT AT 0% SLOPE NOT TO SCALE SILT FL141L FLOW *VDOT #3, #357, #5, #56 OR mJ, COARSE AGGREGATE TO REPLACE SILT FENCE IN "HORSESHOE" WHEN HIGH VELOCITY OF FLOW IS EXPECTED. Silt Fence *DISIANCE IS 6 MINIMUM IF FLOW IS TOWARD EMBANKMENT FLOW Stone Combination �{ 1.0' 1.5' V Lf1JJ I RIPRAP CULVERT INLET PROTECTION 3.08 (CIP NOT TO SCALE IN M MIN Compacted Soil }� 4.5' MIN NOT TO SCALE SILT FENCE OUTLET DETAIL oP (SPECIAL DESIGN) SILT FENCE CE 12N j Provide energy dissipators EXIST. o �L EXIST. (SCC—ED) as required to GROUND GROUND reduce velocity and prevent ELEV rinx scour, at end of diversions. 6. OUTLET CROSS SECTOIN PERSPECTIVE VIEW acted Soil —Filter Fabric Clean Water Flow 4.5' MIN GROUND 70' MIN. FILTER CLOTH 6" MIN. A SIDE ELEVATION 3 70' MIN. WASHRACK 10' MIN. 12' MIN. VDOT #1 COURSE AGGREGATE * MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS OPERATION CLEAN WATER DIVERSION DIKE (CWD) NOT TO SCALE *--"'POSITIVE DRAINAGE TO SEDIMENT B TRAPPING DEVICE PLAN VIEW FILTER CLOTH SECTION A — A 6'-7" 7/ EXISTING PAVEMENT 1 MOUNTABLE BERM (OPTIONAL) EXISTING PAVEMENT 10' MIN. REINFORCED CONCRETE' DRAIN SPACE SECTION B—B CONSTRUCTION ENTRANCE DETAIL 3.02 (CE) NOT TO SCALE CONSTRUCTION OF A SILT FENCE (WITHOUT WIRE SUPPORT) 2. EXCAVATE A 4" x 4" TRENCH 1. SET THE STAKES UPSLOPE ALONG THE LINE OF STAKES. 6" MAX 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. 5 SHEET FLOW INSTALLATION (PERSPECTIVE VIEW) POINT A:SHOULD BE HIGHER THAN POINT B. DRAINAGEWAY INSTALLATION (FRONT ELEVATION) SILT FENCE DETAIL 3.05 (SF) NOT TO SCALE 4) N W N U o QgN �f ¢ I q Oas z Q5� Q W ¢ ¢ w O rvl�J °C W k = 6 UU o a- z m _ � m m U rn x o U o Q m Z rr ►Zi O ���------��� W o Z M LL 0 rn rn i (V 4 ELIr ¢ Q W J 0 O m ~ J a w O a w U0o0 N m�a = MD= a rn vJU OF pj�+ cf.. cl s Dustin E. Greene Uc. No. 5,5833 b4 A�0* 2/11/22 ;r%0NAL 6�G az z a v) J (n > 0 0 w m J L Ir pUNLU 0 JJ Q LU Q z Q W LU Z w i o Q 0 O_ W o 06 0 J Q OFn H Wz � z 0 a w p w r a p z oz O Z w O � a � o U } w p Z � 0 N � w r ^' v p o N 0 z DESIGNED BY: DEG DRAWN BY: ARC CHECKED BY: DEG DATE: 03-19-2021 SCALE: 1 "=20' JOB: 20-1962 FILE: 20-1962 SHEET: V OF 05 ( GF\TMPROI\2019U-Nys mDirve Cursing\MG\EMMan Rxg,2/11/2M2:13U3PM,Aut DPDF(Gene,lDxumenaion)pA RY _ \I\\�1\ i I_ I—/I1 III)�\\A(� �\ \I 'j !/ 1_\\11I�\l�1\ / �I \\1�I�III\�II� \I IIA � I I' \'\ Il�I/1 \ \�II I\ / \/1\ lI V�1/ I /\ ! II\ I �\`\1i\ /1iI //�/ I1\ / \/ _ '�\/ A/ I (/I� I I /I \ II/ /(\ \ —/ 1// /\� i I// 1/\AI I\V\��/\/l// //\ /\I� \j/i \11/II\(/( �1I I // \\V/ //A/I /\ 1 / / \ /\I//�\ \!IJ/j /\I /\�lII \I\ l I II/V�/ A \! lI\\//\\///�/ // � \\ /\\�/ l j/�//�V / 1///j 1I�\�11 /// � I1 /1I /I\\1 (/I 1/ (/\ I \/ l/ //1I�l / �1\ \/1 /( \// /A/\�1\/ V//I/\11A//I\ �I\ I \ I\/\I/�1 I // �\�//\//\ \/k/\ 1� \V/// /\/ \I //\// l I // 1 /I> IV A11f/�1 // \l//I /\////\/ \ /\\\�\\I / \1\//// ( \// /\\// \A IJ A// I/ �/I�/ /I/VII / \V/ l I\V///\I// ( /l/\\I// /�/ \ //\ 1(/O Il\ \(/V //\\\/\ I/I I /1\ ///�) // l 1/�\\\/ I\l\I//I \ /I // (1j/// AI////IIA /l lA V I I // / /I( �\ / /� /1�/ //I�I \I 1�/\IV /I I A//I//1/�/\'// \\I /�\/1//\ 1I � I I / I/ I / III// I'\ /�I /\l /I//!\/IAlI/ / I ,f� �/ /1\lI \ / // I I/�//I /\A /1I ///�\/ / \/ / I/A\/I 1 l/I \ /!/I�\ 11/ \I/\I\(/// 1I�/ A1/lA/IjI1// l\% /I / /\I1II I/ // /\\ /\\ /l/I l/// \// /l // /l \/ �I/! //(� j\/1l \1 II\ //\\ / �/ l/\I//J/I/� \//( \/l) � \�l/\I////(II \ \1/I�/I /1 \ I I/ II �I �/// /\/) \/I II IJ\� \/ // \ �II\//II\I\ I�1 f/ /IIIl \ �I II VI I \11 /I/II\ V/I \l1II)/I/I A ,I 1!I IlI�//�/�II\ / \V�\ /III�////l�/II II�(�/1 '5%I(I\\A /I\/�JI(/1/I�1j ll �l\1 � I )l\/l�I I11\I\ I.1IIr1/ i}}�1/I /l.�\/1I//l/I \/\I,l/I��1I/I I\ I� AI/11 l/////�/� / I 1\�IlI,\\l\1// II // I�)I!/�( lIII( \I / )l\�\\I� I /1I1 \A)1I//////)/(III�/\//I \//} 1II 11/\I/// 1II)/I/ I/I lI(I((lI I\1I / �1/ IJ// /\1!//1/�� 1I1 I\IJ II 1I O\\ II 1 1I/1\\ /I 11�V�(I•/�/ / I II 1 1I II \/ I /I/ 1 11�/IlI I /�I \ 1 �/II /\l/ I1 I/I \��I� 1I `/.!/\\/// l// I II IIII ( I/ \I \IIII�/// /1� //(\\/11 •/I // \ �/ �tiI\(i(/ '\/ I, /\II/I� �/III/)// } 1�r/ /\ �V /l1/\\ (II1�/1/ I /// I/' lI/II\ I) / \ \ / ) \I •/// /I/I IIi!1//J I\ I \ (1 I/\\ /%/ � / Il• l/I�I/I II1/ II // �\/ fill I (II/1/• 1 �I�Jr\II I(\�1I/II I tI/ /•1Iw/J •I/r /1III/ � , )(I / I/\ // �I/I1\/I � I1/I I )�/1I/ //Il1I\�I 1 iI/;1 III �/IIf1/ I I I / �// \I 1i \��I'Il /\I1 I�I�II�///• IJ/1 I�•�l� I � /I/ � ( 1/I)I �I/IlI l '/ / //�('1��/�I/I'\I ! /(l i//IiI �/�� (I (\�I /// I!I`l—/rfII/ I/� ILI / IIf •/I// _J� I �/I/I \� /r/ J / I/.-- /—/r\•/A\"I� ) �I /—Il/1—i / I•I/ \ /. I\ I/Il . /\// \I / /(Il�' i�I�1 /1�///\A/ )`_ //fn /' J�\ /J,'./_\ ,//� �/ •/a\•\ /� • ///�/l/•��/ • / —i� /�///•—I ' � /"—�— / / I/ \�—', /� \ /\ ., �/ •�/\/ J //V •,/ /LI //\ _ �l /�J///I /!__ —/ /// /A— \�// • ^//��.—/ ' �\/ r. I /!/�i/,/////1I'/<//. \// �/'/ \l /// // \//l !/ //�/•/ ! /////l/••• /1 )�/� ' / i/ /•\/ /(/ I //I �/ /—/\/! i�//�/•! // / �_I/ /. //\S I /�•i� I ) r/ —/��• I"�}� JvJ�/ l \` I/ / A L/LINETYPE EXISTING TREELINE PROPOSED TREELINE 10YR WATER SURFACE 100YR FLOODPLAIN •..•• WATER PROTECTION BUFFER LIMITS OF DISTURBANCE � /✓ / •./ /./•'/////• I I l •\ /� 1 I/ �'//` _-/• / ' %!./ )l//, (//.•_ �\/. / i/ I -� \\ P\ \ aR/ �O—s—/P� Ev — —`R/ \ T _Y` (\//ILINE WATERLINE • STREAM BUFFER MITIGATION MITIGATION PLANTING AREA #1 STREAM BUFFER IMPACT AREA TOTAL = 23,104 SF (0.53 AC) 28'589 SFIMPACT AREA A 5,163 SF IMPACT AREA B 7,807 SF r 10,134 SFIMPACT AREA C -\ \/ •.`/' • \\s \i /•\ •/�� ' /0•A MITIGATION AREA REQUIRED 46,208 SF (1.06 AC) 0 STREAM BUFFER MITIGATION/REPLACEMENT RATIO — 2:1 MITIGATION AREA PROVIDED 46,209 SF (1.06 AC) MITIGATION AREA 1 = 28,589 SF 0.65 AC) REQUIRED: 700 CONTAINER —GROWN SEEDLINGS/AC 455 CONTAINER —GROWN SEEDLINGS PROVIDED: 455 CONTAINER —GROWN SEEDLINGS � MITIGATION AREA #2 = 10,308 SF (0.24 AC) REQUIRED: 700 CONTAINER —GROWN SEEDLINGS/AC 168 CONTAINER —GROWN SEEDLINGS ` PROVIDED: 168 CONTAINER —GROWN SEEDLINGS MITIGATION AREA #3 = 7,312 SF (0.17 AC) REQUIRED: 700 CONTAINER —GROWN SEEDLINGS/AC 119 CONTAINER —GROWN SEEDLINGS PROVIDED: 119 CONTAINER —GROWN SEEDLINGS / TOTAL PLANTS REQUIRED = 742 ,TOTAL PLANTS PROVIDED = 742 PLANTSCHEDULEPLANTINGAREA#1 � QNTY. BOTANICAL NAME COMMON NAME COMMENTS CANOPYTREES � 42 Acer rubrum RED MAPLE 27 Diospyrosvirginiana AMERICAN PERSIMMON 1r p 29Quercus bicolor SWAMP WHITE OAK 37 Quercus palustris PIN OAK UNDERSTORYTREEES 30 Amelanchier laevis ALLEGHENY SERVICEBERRY 25 Prunus americana AMERICAN PLUM SHRUBS CONTAINER -GROWN 30 Hamamelisvirginiana WITCH HAZEL SEEDLINGS 351teavirginica VIRGINIASWEETSPIRE II(( 20 Lindera benzoin NORTHERN SPICEBUSH 35 Rubus occidentalis BLACK RASPBERRY 30 Sa mbucus Ca nadensis AMERICAN ELDERBERRY 27 Vaccinium angustifolium LOWBUSH BLUEBERRY 27 Vaccinium corymbosum HIGHBUSH BLUEBER 31 Viburnum dentatum SOUTHERN ARROWWOOD 30 Viburnum prunifolium BLACKHAW VIBURNUM 455 TOTAL PLANTSCHEDULEPLANTINGAREA#2 QNTY. BOTANICAL NAME COMMON NAME COMMENTS CANOPYTREES lI17 Acer rubrum RED MAPLE 11 Diospyrosvirginiana AMERICAN PERSIMMON 11 Quercus bicolor SWAMP WHITE OAK 9 Quercus palustris PIN OAK IIII UNDERSTORYTREEES 11 Amelanchier laevis ALLEGHENY SERVICEBERRY 9 Prunus americana AMERICAN PLUM / SHRUBS 9 Hamamelisvirginiana WITCH HAZEL CONTAINER -GROWN ISEEDLINGS )II I\ /\�/, / 11 Iteavirginica VIRGINIASWEETSPIRE //IIIII I I II II IlI EA #2(II IMITIGATION PLANTING AR 11 Lindera benzoin NORTHERN SPICEBUSH y 11 Rubus occidentalis BLACK RASPBERRY 10,308 SF 15 SambucusCanadensis AMERICAN ELDERBERRY 11 Vaccinium angustifolium LOWBUSH BLUEBERRY 11 Vaccinium corymbosum HIGHBUSH BLUEBERRY J(/, 10 Viburnum dentatum SOUTHERN ARROWWOOD I/ 1 I I ` 11 Viburnum prunifolium BLACKHAW VIBURNUM 168 TOTAL PLANT SCHEDULE PLANTING AREA#3 QNTY. BOTANICAL NAME COMMON NAME COMMENTS CANOPY TREES 15 Acer rubrum RED MAPLE 4 1spyrsirginana AMERICAN PERSIMMON SWAMP 5 Quercus 7 Quercus palustris PIN OAK IUNDERSTORYTREEES 12 Amelanchier laevis ALLEGHENY SERVICEBERRY AMERICAN PLUM � 5 Prunus americana SHRUBS r CONTAINER -GROWN I; 9 Hamamelisvirginiana WITCH HAZEL SEEDLINGS Cl- 9 [teavirginica VIRGINIASWEETSPIRE 3 Lindera benzoin NORTHERN SPICEBUSH 7 Rubus occidentalis BLACK RASPBERRY MATCHUVE SHE'EI5 MATCHLIN SHEF�T5 9 SambucusCanadensis AMERICAN ELDERBERRY //// / / / / /•I !/ HIGHBU7Vaccinium corymbosum SHBLUEBERRY5 Vaccinium angustifolium LOWBUSH BLUEBERRY / � / \/ \ S�•..��;� •• / 9 Viburnum dentatum SOUTHERN ARROWWOOD / r "- 5 Viburnum prunifolium IBLACKHAW VIBURNUM 30 0 30 60 90 119 TOTAL SCALE: 1" = 30' , wo �i ~ > Q� a w Q W w K aU pN Q $ o U o a J Z s Z� 0- m N M ¢ v r Q W w J _zo a O J 0 0 N a w i O N OJ w�� a mMC)—LLL— z 0 a V 0 w 0 O z z 0 a u 0 w Q 0 0 z DESIGNED BY: AG DRAWN BY: AG CHECKED BY: JLT �z zz Q `^ � Q a- Cn DATE: 9-24-2021 SCALE: JOB: 20.01962 FILE: DRIVEWAY PLAN SHEET: 40F 5 (k\RGF\TMPROI\201962 - Nysbom Oirveway Crossing\DWG\E&5 %andwg, 2/11/20P2 23513 PM, AutoCAO PUF (General Omumentation) p[3 1, LINETYPE EXISTING TREELINE PROPOSED TREELINE 10YR WATER SURFACE 100YR FLOODPLAIN ••••••••••••••••••••• WATER PROTECTION BUFFER LIMITS OF DISTURBANCE WATERLINE PLANT SCHEDULE SEEDING MIX Qntv. Botanical Name Common Name Comment 23.80% Panicum clandestinum Deertongue Tioga Seeding Rate - 20lbs per acre with 30lbs per acre Rye cover crop PLANTING AREA#1 6.6lbs Seed Mix 6.9lbs Cover Crop PLANTING AREA#2 9.8lbs Seed Mix 14.7lbs Cover Crop 20.00% Elymus virginicus Virginia Wildrye 15.50% Andropogon gerardii 'Niagara' 'Niagara' Big Bluestem 12.00% Carex vulpinoidea Fox Sedge 5.00% Carex lurida Lurid Sedge 5.00% Carex scoparia Blunt Broom Sedge 4.50% Carex lupulina Hop Sedge 4.00% Verbena hastata Blue Vervain 2.00% Heliopsis helianthoides Oxeye Sunflower 1.50% Cinna arundinacea Wood Reedgrass 1.00% Asclepias incarnata Swamp Milkweed 1.00% Juncus effusus Soft Rush 0.50% Eupatorium perfoliatum Boneset 0.50% Helenium autumnale Common Sneezeweed 0.50% Zizia aurea Golden Alexanders 0.40% Aster novae-anglia New England Aster 0.40% Aster puniceus Purplestem Aster 0.40% Aster umbellatus Flat Topped White Aster 0.40% Monarda fistulosa Wild Bergamot 0.40% Penthorum sedoides Ditch Stonecrop 0.40% Pycnanthemum tenuifolium Narrowleaf Mountainmint 0.40% Scirpus cyperinus Woolgrass 0.30% Lobelia siphilitica Great Blue Lobelia 0.10% Solidago rugosa Wrinkleleaf Goldenrod Ernst Conservation Seeds, Inc. Seed Mix - ERNMX-154 Floodplain Mix or Equivalent ` ,•' �•� ; �•• \ /MATCHLIIyE SHEET 4 MITIGATION PLANTING AREA #2 I / SEA #3 � / •� I v J I I h \ APPROXIMATE LOCATION 100YR FLOODPLAIN STREAM EDGE OF ' CREEK ,r � II'I• I l � / l 10YR WSE I � I WPO BUFFER (GIS) ( 1 ��� \ � • J � 1 / I � I\ �' � 'j B CKMOUNTAINSECONDARY \ \) \)hw / / I I 100YR WSE F CONTAINMENTSEEK CROSSING A� C EMICAL J / AL�EL ( / / j RAGE �� IT STREAM —BUFFER MITIGATION GENERAL PLANTING NOTES i / , / �y% W / / w )( 1 1-1 i / LAVATORY 1. IF IT IS NECESSARY TO KILL OFF ANY INVASIVE UNDESIRED SPECIES WITH / / // �/ ,/ // /; / SIF HERBICIDES, SITE PREPARATION SHOULD BEGIN IN THE FALL PRIOR TO THE I / / �<a O r ( \ •I \ +00 MATCHLINE SHEST 4 .\ I102308 SF �-00 — V ( I I ,•, \ 1 ` \ l / �l II✓ / / \ \ M11Ile 0 � �� 7 —LIMITS OF DISTURBANCE (0.18AC) At WPO BUFFER (GIs) ,• �_' / Y l • l l , / / /40 / • • •••//// j 10YR WSE I// // ,/ // 4OP/ 1 •�•� / ; / // �100YR WSE // • / .� / r ( / l I / 46# l I � • TREE PLANTING AND SEEDING. UNDESIRED SPECIES MAY INCLUDE MULTIFLORA � �/• x bJ7 g% / �"�- c� �. .� ./ / , / / 7 / / 1. , J _ _ ��Y ROSE, HONEYSUCKLE AND OTHER SPECIES DEEMED TO BE INVASIVE BY THE I l v It I CE / / •j U ' it p �_sup DO / / /' �• •• // / / / ) // / VIRGINIA DEPARTMENT OF CONSERVATION AND RECREATION. THE HERBICIDE l / �� i` U / p / // . TS PS �S ;° •� / / SHOULD BE APPLIED BY A LICENSED SPRAY TECHNICIAN USING ANON —TOXIC, / ?J� / � �/ O BIODEGRADABLE HERBICIDE TO CONTROL UNDESIRABLE VEGETATION. / / / 4f ! ,' g / / / 9 C / l fn 15d P iKf SF // MUDDY RUN / . LIMNS OF 2. FOR AREAS THAT ARE STABILIZED WITH EXISTING GRASS COVER, MOW AND ( 1 r' \ 1 r I SF \ , \ r CROSSING .•�j DISTOBANCE AERATE AREA PRIOR TO PLANTING AND/OR OVERSEEDING. I it _ \ 6&6 / I 10YR WSE • (129A0 f 3. FOR AREAS THAT ARE DISTURBED AND NOT STABILIZED WITH EXISTING GRASS h 1 \ / I. f ` //C' COVER, AREA SHALL BE PREPARED AND ORDERED BY TILLING OR SCARIFYING / ,i1 r I� I I TP 4 LIMITS OF 1 I / — / / t t / l / / / ^ / / +�T �. I / I DISTURBANCE • )' / / / / �/ ,�„ • TO A MINIMUM DEPTH OF 2". TEST SOIL PH; THE PH LEVEL WITHIN THE , / �% / ), GENERALIZED ROOT ZONE OF STREAM BUFFER MITIGATION PLANTINGS SHOULD (0.13AC)/ J WPO STREAM BUFFER .••..: •/ P . I _ / , / / / ///+ BE TESTED AND BROUGHT TO WITHIN A RANGE of 9.0 TO 7.0. THE PH �' / / 1 J ( \ • .. ry. `T' I. \; , ADJUSTMENTS CAN BE MADE USING POWDERED LIME. �!' — / / C I /I� : A �. A �V IMPACT AREA B ( / /\ I WPO STREAM BUFFER ` \ \ I ( / ' '� /� , // / 4. ALL PLANTING PATTERNS SHALL BE RANDOM AND MIXED TO MIMIC NATURAL if / — J { 7,807 S F \;• / �/ I / / / / / / /+ / LANDSCAPES. �4' ,� r 1 I �• s I J / / + / ,w / v IMPACT AREA A I v I I r • I • CONTAINER GROWN SEEDLINGS -- AVERAGE OF 8' ON —CENTER \ ;� ,� / �- � � \. I 10YR LIMITS /• � 5. VEGETATION SHOULD BE PLANTED AS SOON AS THE AMBIENT SOIL ;� �•• 5,163 SF 1 I rl�/� TEMPERATURE IS ABOVE 41' F THROUGH MAY.P /'� I 1 •%/ • \ ' \ • I I l / I 'l �// 6. PLANTS SHALL REMAIN UPRIGHT DURING TRANSPORT STORAGE. PLANTS STORED /®r ONSITE MUST BE PLANTED WITHIN THREE DAYS OF DELIVERY IN ADDITION THE I \• •� \ I / / PLANTS SHOULD BE STORED IN A PROTECTED AREA UPON ARRIVAL IN ORDER / Ir ••`\ �' f� I 1 \ TO SHADE THEM FROM EXPOSURE TO THE SUN AND DRYING WIND. TREES ' 1 / I , II \ I — •, • •, 1 / AND/OR SHRUBS THAT CANNOT BE PLANTED IMMEDIATELY UPON DELIVERY / • • •,' �. 1 I l •,• \ I I SHALL BE KEPT WELL SHADED, PROTECTED, AND WATERED. ALL DAMAGED ••,• \ ti 1 \ \ < •• PLANTS SHALL BE REMOVED FROM STORAGE WHEREUPON THEY MAY BE USED / •. \ I I Ii 11 AS MULCH UNLESS THEY ARE DISEASED.. /' �I : / ••� \ I i I (\' ! : \; 7. HOLES EXCAVATED FOR THE SEEDLINGS SHALL BE 3—TIMES THE CONTAINER \I I ` I 1 \ �/ •f / l DIAMETER OR AT LEAST 6" WIDER THAN THE BARE ROOT DIAMETER. THE HOLES / ••/ ` \ J \ l I 1 '+: •l MAY BE EXCAVATED EITHER BY HAND SHOVEL OR BY POWER AUGER. EXCESS ' ' ' ( I // I ( \ / —/7 �I N SOIL GENERATED FROM THE EXCAVATIONS SHALL BE DISPOSED OF RANDOMLY \ _ OVER THE SITE. '=• — I IL/ /--� — .•__ _•I 8. THE PLANTS SHALL BE SET AT THE SAME DEPTH THAT THEY WERE GROWN IN AND THE TRUNK SHOULD BE SITUATED NEARLY PLUMB. STREAM —BUFFER MITIGATION MAINTENANCE NOTES 9. AVOID PLANTING SEEDLINGS/WHIPS IN EXTREMELY DRY, HOT OR WINDY CONDITIONS. HEAT AND WIND CAN QUICKLY DRY OUT LEAVES AND ROOTS. 1. VISUALLY INSPECT PLANTING AREAS ON AN ANNUAL BASIS. 10. WATER THE SOIL AROUND THE SEEDLINGS IMMEDIATELY AFTER PLANTING. A. RESEED BARE SPOTS WITH A MIXTURE OF GRASS, PERENNIAL AND/OR WOODY VEGETATION SEEDS. USE NATIVE 11. FOR DISTURBED AND UN —STABILIZED AREA, THE AREAS COMPACTED BY FOOT SPECIES ONLY. OR VEHICLE TRAFFIC SHALL BE AERATED PRIOR TO RESEEDING AREA AFTER B. IDENTIFY WEED PROBLEMS WITHIN THE PLANTING AREA. TREES AND/OR SHRUBS HAVE BEEN PLANTED. a. CONTROL WEEDS AS SOON AS POSSIBLE BEFORE THEY GROW OUT OF CONTROL. WEED CONTROL METHODS WILL VARY, BUT MAY INCLUDE REMOVAL BY HAND, MOWING, SELECTIVE USE OF HERBICIDES, MULCHING, AND OTHER 12. FOR DISTURBED AREAS, BROADCAST THE SUGGESTED SEED MIX BY HAND OR INTEGRATED VEGETATION MANAGEMENT (IVM) TECHNIQUES. MACHINE EVENLY OVER THE PLANTING AREA AND FOLLOW WITH A LIGHT RAKING OR ROLLING TO ACHIEVE GOOD SEED —TO —SOIL CONTACT. COVER WITH A LIGHT b. CONTINUE WEED CONTROL UNTIL WOODY PLANTS ARE FULLY ESTABLISHED IN THE PLANTING AREA NORMALLY 2 TO LAYER OF STRAW MULCH. 3 YEARS AFTER PLANTING. C. INSPECT AREA FOR EVIDENCE OF HIGH DEER BROWSE PRESSURE OR RODENT POPULATIONS. 13. FOR OVERSEEDING AREAS, THE SEED CAN BE BROADCAST BY HAND OR a. IF THERE IS EVIDENCE OF HIGH IMMORTALITY RATE, CONSIDER AVAILABLE OPTIONS FOR CONTROLLING PEST MACHINE DIRECTLY AFTER AERATION OF SOIL. PROBLEM SUCH AS FENCING TREE SHELTERS AND TREE CAGES TO REPELLENTS INCLUDING IN —SOIL SYSTEMIC 14. NO STORAGE OF HERBICIDES OR OTHER AGRICULTURAL CHEMICALS SHALL BE TABLETS, FOLIAR SPRAYS OF MANY TYPES AND ACTIVE INGREDIENTS. PERMITTED NEAR THE PLANT STORAGE OR MITIGATION AREAS. D. CHECK SURVIVAL IN LATE FALL AFTER SECOND YEAR TO ESTABLISH SURVIVAL RATE. MINIMAL SURVIVAL IS 490 15. ALL WOODY PLANTS AND SEED MIXES SPECIFIED ARE NATIVE SPECIES. ANY AND PLANTS/ACRE OR A 70% SURVIVAL RATE FOR SEEDLINGS. ALL PLANT OR SEEDING SUBSTITUTIONS MUST BE NATIVE. CONTRACTOR TO a. IF THE SURVIVAL RATE IS NOT AT THE SPECIFIED MINIMUM AND REPLACEMENT PLANTINGS ARE WARRANTED, VERIFY THAT ANY SUBSTITUTION IS A NATIVE EQUIVALENT AND NOT ON THE PLANTING AREAS SHOULD BE SURVEYED TO TRY TO IDENTIFY THE LIKELY CAUSE OF THE PLANT MORTALITY. VIRGINIA DEPARTMENT OF CONSERVATION AND RECREATION INVASIVE SPECIES SOURCES OF THE MORTALITY SHOULD BE CONTROLLED AND MITIGATED FOR PRIOR PLANTINGS REPLACEMENTS. PLANT LIST. E. CHECK FOR NATURAL REGENERATION. WHERE ABUNDANT, LIMIT FURTHER MOWING UNLESS SITE IS PRONE TO VOLES OR INVASIVE PLANTS. F. IF TREE TUBES ARE USED, REGULARLY INSPECT THEM TO MAKE SURE THEY ARE NOT TOO TIGHT ON THE TREE, THAT SMALL ANIMALS OR INSECTS HAVE NOT BUILT NESTS INSIDE THE TUBES, AND THAT THE TREE IS GROWING PROPERLY. REPLACE OR REMOVE THE TUBES AS NEEDED. G. IN YEARS 3-5, PRUNE AND THIN TREES AND SHRUBS TO ENSURE ADEQUATE GROWING SPACE AND OPTIMAL GROWTH RATES. 2. VISUALLY INSPECT PLANTING AREAS AFTER MAJOR STORM EVENTS. A. IF STORM DAMAGE IS PRESENT, FIX EROSION DAMAGE THEN REPLANT AREA AT THE MINIMUM PLANTING RATE FROM THE ORIGINAL PLANTING PLAN OR RESEED MANUFACTURES' RECOMMENDED APPLICATION RATE 3. IF POSSIBLE, AVOID WORKING IN THE RIPARIAN AREA BETWEEN APRIL 15 AND AUGUST 15. DURING THIS TIME PERIOD, DISTURBANCE CAN BE DETRIMENTAL TO A VARIETY OF WILDLIFE, BECAUSE OF MATING AND NEWLY BORN WILDLIFE. Re',as, ccrra:ror rmtl art ..nrg rorn� APPROXIMATE LOCATION STREAM EDGE�Of--, •` �J _ �I� � I I � �REEK,-, / I I I I 1 I I I I i 1 I•'\ � ) I I I / � 1 Aerxsvrc C - ]PL,uvruvc 1iETA>• C RnwaaMl Etad avfl gnxu�p praecl%s aad eat: rw rt IeutlePs. Da war reu a dmrmart rewis* cm IAramEm � I -$'kF" 3 tl aygssaseyro 16d a6 WIK11i paM,YaS gPuadi rrWauayr:�Prunk,� •:R 9§rz �re'e• PmG Ball s•cisrtn m�ntl timnwc Fap sN rasa �� } D:w:meadsA pgckM1� Sp:r 2emtt[e' Aura' Ifar i l - — � :1Qne eeslld sail p�ssPst - LD xaG ri. m„dam:,:,,-. �pn'. O+e ayl6n in^r i.:. ➢�.f h $_5 hnr.�.+nr+F b l:,•.Lary Tree Planting Detail . S'Y'•eayedbn ?'MN M'W.dti dmi muM� __ �,(5kmddd l+xaYacdmukh a•,...�d.a<..�.ad.R•.,mnrP I—Illk=. Illl�k�. III-- rrn:wrrnwrarwn:. se..arwpr u.w.ePfw..p.•¢r• Shrub and Groundcover Planting Detail Riparian Buffers Guidance Manual WPO STREAM BUFFER I M PACT AR EA C \ \I \ 10,134 SF � \ 1 1 \ 1 1 \ \\ \ 1 \\ \ \ \ \ 1 I I I I I \ \ 1 I I \ \ \ \ \ \ 1 1 ( l l l \I 1 \ \\ \ \ \ \ \ 1 \ 4 I I I I 1 f \\ 1\ \\ \\ \ 1\ )\ \\I \ 1 II 11 II \I \ 1 I ) \ 1 \ \ 1 I ) 1 1 1 1 I I I I 0 90 60 90 sCAIX: 1" = I ��m Q J S N o� a 3FLn > O Ln Z Q U J J = Q ¢ w U Lu x aU o p to = o U o a z0 x 0' o wU o 0 — rn n a� a QUW) W M W Z O J O a > a o w U C) N W M F Q a rn=nU DESIGNED BY: AG DRAWN BY: AG CHECKED BY: JLT z 0 a it 0 W 0 O� P4 z 0 s 0 W Q 0 d z LL I 41, �z zz Z O CQQ O Q U N m � Q W Q C� � 0 C� G w a Z G W > � 0 � � o W m � m W � = Q � W z DATE: 9-24-2021 SCALE: JOB: 20.01962 FILE: DRIVEWAY PLAN SHEET: V OF 5 (k\RGF\TMPROI\201962 - Nysbom Oirveway Crossing\DWG\E&5 %andwg, 2/11/20P2 23]:CO PM, AutoCAO PUF (General Omum¢ntation) pr3 . S'Y'•eayedbn ?'MN M'W.dti dmi muM� __ �,(5kmddd l+xaYacdmukh a•,...�d.a<..�.ad.R•.,mnrP I—Illk=. Illl�k�. III-- rrn:wrrnwrarwn:. se..arwpr u.w.ePfw..p.•¢r• Shrub and Groundcover Planting Detail Riparian Buffers Guidance Manual WPO STREAM BUFFER I M PACT AR EA C \ \I \ 10,134 SF � \ 1 1 \ 1 1 \ \\ \ 1 \\ \ \ \ \ 1 I I I I I \ \ 1 I I \ \ \ \ \ \ 1 1 ( l l l \I 1 \ \\ \ \ \ \ \ 1 \ 4 I I I I 1 f \\ 1\ \\ \\ \ 1\ )\ \\I \ 1 II 11 II \I \ 1 I ) \ 1 \ \ 1 I ) 1 1 1 1 I I I I 0 90 60 90 sCAIX: 1" = I ��m Q J S N o� a 3FLn > O Ln Z Q U J J = Q ¢ w U Lu x aU o p to = o U o a z0 x 0' o wU o 0 — rn n a� a QUW) W M W Z O J O a > a o w U C) N W M F Q a rn=nU DESIGNED BY: AG DRAWN BY: AG CHECKED BY: JLT z 0 a it 0 W 0 O� P4 z 0 s 0 W Q 0 d z LL I 41, �z zz Z O CQQ O Q U N m � Q W Q C� � 0 C� G w a Z G W > � 0 � � o W m � m W � = Q � W z DATE: 9-24-2021 SCALE: JOB: 20.01962 FILE: DRIVEWAY PLAN SHEET: V OF 5 (k\RGF\TMPROI\201962 - Nysbom Oirveway Crossing\DWG\E&5 %andwg, 2/11/20P2 23]:CO PM, AutoCAO PUF (General Omum¢ntation) pr3 41, �z zz Z O CQQ O Q U N m � Q W Q C� � 0 C� G w a Z G W > � 0 � � o W m � m W � = Q � W z DATE: 9-24-2021 SCALE: JOB: 20.01962 FILE: DRIVEWAY PLAN SHEET: V OF 5 (k\RGF\TMPROI\201962 - Nysbom Oirveway Crossing\DWG\E&5 %andwg, 2/11/20P2 23]:CO PM, AutoCAO PUF (General Omum¢ntation) pr3 DATE: 9-24-2021 SCALE: JOB: 20.01962 FILE: DRIVEWAY PLAN SHEET: V OF 5 (k\RGF\TMPROI\201962 - Nysbom Oirveway Crossing\DWG\E&5 %andwg, 2/11/20P2 23]:CO PM, AutoCAO PUF (General Omum¢ntation) pr3 (k\RGF\TMPROI\201962 - Nysbom Oirveway Crossing\DWG\E&5 %andwg, 2/11/20P2 23]:CO PM, AutoCAO PUF (General Omum¢ntation) pr3 Section 5. Stormwater Management Plan Qualifies for Agreement in Lieu of Plan for SWM plan because the driveway is being constructed for the purpose of establishing the first single-family dwelling on the subject property [§ 17-403.B]. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 6. Pollution Prevention Plan. (Reference County Code 17-404 and State Regulation 9VAC25-880-70 part II section AA) (A) PLAN SHOWING POLLUTION ACTIVITIES AND PREVENTION PRACTICES (Provide a reduced I Ix17 copy of a site plan on which all of the following activity locations are clearly marked. Keep this plan up-to-date with ongoing site changes and inspections.) (B) SOURCES OF POLLUTANTS, LOCATIONS, AND PREVENTION PRACTICES Minimization of exposure to precipitation and stormwater. Minimize the exposure of building materials, building products, construction wastes, trash, landscape materials, fertilizers, pesticides, herbicides, detergents, sanitary waste, and other materials present on the site to precipitation and to Stormwater. See chart below for potential pollutants expected on site, MateriaVChemical Physical Description Stormwater Pollutants Location- Areas where Prevention Practices, used on site Control Measures Clearing, grading, Brown/Black/Gray silt Silt Throughout Follow Erosion and excavating and un- Sediment Control Plan. stabilized areas Dispose of clearing debris at acceptable disposal sites. Seed and mulch, or sod within 7 days of land clearing Dewatering Operations N/A Silt, gasoline, oil, etc. Designated area shown on Water shall be filtered, plan settled or similarly treated prior to discharge as shown onplan. Vehicle and equipment Silt, gasoline, oil, etc. Designated areas and details To be treated in a washing/Wash waters shown onplan sediment basin or better control as specified on plan. Minimize the discharge of pollutants from equipment and vehicle washing. Provide containment and filtering for allwash waters per the plan Pesticides Various colored to Chlorinated hydrocarbons, Herbicides used for Follow manufacturer's (insecticides, colorless liquid powder, organophosphates, noxious weed control instructions fungicides, herbicides, pellets or grains carbamates, arsenic MSDS's attached. rodenticides Fertilizer Liquid or solid grains Nitrogen, phosphorous Newly seeded area Apply fertilizers in accordance with manufacturer's recommendations and not during rainfall events Plaster White granules or Calcium sulphate, calcium Home construction Enclose or cover powder carbonate, sulfuric acid material storage areas. Mix paint indoors in a containment area orin a flat unpaved area. Prevent the discharge of soaps, solvents, detergents and wash water, paint, form release oils and curing compounds. Follow manufacturer's instructions MSDS's attached. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Cleaning solvents Colorless, blue or Perchloroethylene, Equipment Cleaning Enclose or cover yellow -green liquid methylene chloride, material storage areas. trichloroethylene, Mix paint indoors in a petroleum distillates containment area orin a flat unpaved area. Prevent the discharge of soaps, solvents, detergents and wash water, paint, form release oils and curing compounds. Follow manufacturer's instructions MSDS's attached. Asphalt Black solid Oil, petroleum distillates Streets and roofing Cover storm drain inlets and use drip pans and absorbentloil dry for all pavingmachines to limit leaks ands ills Concrete and curing White solid/grey liquid Limestone, sand, pH, Curb and gutter, sidewalk Direct concrete wash compounds chromium and building construction water into a leak- proof container or leak -proof settling basin that is designed so that no overflows can occur. Follow manufacturer's instructions MSDS's attached. Glue, Adhesives White or yellow liquid Polymers, epoxies Home Construction Enclose or cover material storage areas. Mix paint indoors in a containment area orin a flat unpaved area. Prevent the discharge of soaps, solvents, detergents and wash water, paint, form release oils and curing compounds. Follow manufacturer's instructions MSDS's attached. Paints Various colored liquid Metal oxides, Stoddard Home Construction Enclose or cover solvent, talc, calcium material storage areas. carbonate, arsenic Mix paint indoors in a containment area orin a flat unpaved area. Prevent the discharge of soaps, solvents, detergents and wash water, paint, form release oils and curing compounds, Hydraulic oil/fluids Brown oily petroleum Mineral oil Leaks or broken hoses Designated areas hydrocarbon from equipment for material deliveryand storage. Placed near construction entrances, away from waterways and drama e paths Wood preservatives Clear amber or dark Stoddard solvent, Timber pads and home Enclose or cover brown liquid petroleum distillates, construction material storage areas. arsenic, copper, chromium Mix paint indoors in a containment area orin a flat unpaved area. Prevent the discharge of soaps, solvents, detergents and wash Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County water, paint, form release oils and curing compounds. Follow manufacturer's instructions MSDS's attached. Gasoline Colorless, pale brown or Benzene, ethyl benzene, Secondary containment/ Designated areas pink petroleum toluene, xylene, MTBE staging area or leaks. for material hydrocarbon Deliveries to site deliveryand storage. Placed near construction entrances, away from waterways and drainage paths Diesel Fuel Clear, Glue -green to Petroleum distillate, oil Secondary Designated areas yellow liquid and grease, naphthalene, containment/staging area for material xylenes or leaks. Deliveries to deliveryand storage. site. Placed near construction entrances, away from waterways and drainage paths Antifreeze/coolant Clear green/yellow Ethylene glycol, Leaks or broken hoses Designated areas liquid propylene, glycol, heavy from equipment and for material metals (copper, lead, zinc) deliveries to site. deliveryand storage. Placed near construction entrances, away from waterways and drainage paths Sanitary Toilets Various colored liquid Bacteria, parasites, and Location shown on plans Convenient and well - viruses maintained portable sanitary facilities will be provided, and located away from waterways or inlets. Such facilities shall be regularly maintained. Solid Waste Disposal Designed container areas waste collection area shown on plan will not receive a substantial amount of runoff from upland areas and does not drain directly to a waterway. Containers have lids covered before periods of rain, or are in a coveredarea. Scheduled collection to prevent overfilling. MATERIALS NOT TO BE BURIED ON - SITE. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County (Identify all non-stormwater discharges to occur on your site. Keep this plan up-to-date with ongoing site changes and inspections. See CGP, 9VAC25-880-70 section E for examples of non-stormwater discharges.) (C) NON-STORMWATER DISCHARGES It is expected that the following non-stormwater discharges will occur from the site during the construction period. 1. Waters used to wash vehicles or equipment where soaps, solvents, or detergents have not been used and the wash water has been filtered, settled, or similarly treated prior to discharge. 2. Water used to control dust that has been filtered, settled, or similarly treated prior to discharge. 3. Potable water sources, including uncontaminated waterline flushing's/fire flow analysis. 4. Routine external building wash down where soaps, solvents or detergents have not been used and the wash water has been filtered, settled, or similarly treated prior to discharge. 5. Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred (or where all spilled or leaked material has been removed prior to washing); where soaps, solvents, or detergents have not been used; and where the wash water has been filtered, settled, or similarly treated prior to discharge. 6. Foundation or footing drains where flows are not contaminated with process materials such as solvents. 7. Uncontaminated excavation dewatering, including dewatering of trenches and excavations that have been filtered, settled, or similarly treated prior to discharge. 8. Landscape irrigation. All non-stormwater discharges will be directed to sediment control measures prior to discharge. Keep this CHART up-to-date with ongoing site changes and inspections; Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County (D) PERSONS RESPONSIBLE FOR POLLUTION PREVENTION PRACTICES (Provide the names and contact information for all persons responsible for prevention practices as listed above.) Site contractor will be added during pre -con meeting; (E) RESPONSE AND REPORTING PRACTICES Detailed response and reporting practices according to 9VAC25-880-70, Part II, section A.4.e. Minimize dischargesfrom spills and leaks. Minimize the discharge of pollutants from spills and leaks and implement chemical spill and leak prevention and response procedures as follows. Spill control Practices: In addition to the good housekeeping and material management practices discussed in the previous sections of this plan, the following practices will be followed for spill prevention and cleanup: 1. Manufacturers' recommended methods for spill cleanup will be clearly posted and site personnel will be made aware of the procedures and the location of the information and cleanup supplies. 2. Materials and equipment necessary for spill cleanup will be kept in the material storage area onsite. Equipment and materials may include but not be limited to brooms, dust pans, mops, rags, gloves, goggles, absorbent material (e.g., kitty litter, sand, sawdust) and plastic and metal trash containers. 3. All spills will be cleaned up immediately after discovery. 4. In the event of a spill of a hazardous substance, the spill will be immediately contained and the spill area will be kept well ventilated. Personnel will wear appropriate protective clothing to prevent injury form contact with a hazardous substance during cleanup operation. 5. Spills of toxic or hazardous material will be reported to the appropriate State or local government agency, as required by regulatory standards. Call the agencies listed below to report any spills of toxic or hazardous material: Albemarle County Fire and Rescue Station 4: 434-973-8862 Albemarle County Police Department: 434-977-9041 Albemarle County Health Department: 434-972-6200 VA Department of Conservation & Recreation: 1-804-786-2094 VDEQ Valley Regional Office: M-F, 8:30-4:30 540-574-7800 VA Department of Emergency Services: 1-800-468-8892 Local VSMP Authority: M-F, 8:00-5:00 434-296-5832 Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Spill Procedure 1) Check for hazards (flammable material, noxious fumes, cause of spill) - if flammable liquid, turn off engines and nearby electrical equipment. If serious hazards are present, leave the area and call 911. 2) Make sure the spill area is safe to enter and that it does not pose an immediate threat to health or safety of any person. 3) Stop the spill source. 4) Call co-workers and supervisor for assistance and to make them aware of the spill and potential dangers. 5) If possible, stop spill from entering drains (use absorbent or other material as necessary) 6) Stop spill from spreading (use absorbent or other materials necessary) 7) If spill material has entered a stone sewer or public waters; contact locality's storm sewer water department, locality's VSMP inspector, local VDEQ Office and VA Department of emergency services. 8) Clean up spilled material and do not flush area with water. 9) Properly dispose of cleaning materials and used absorbent material according to manufacturer specifications. "Spill report form and procedure can be found in Section 13. Additional Information and Logs" (F) POLLUTION PREVENTION AWARENESS Material Management Practices/Spill Prevention: The following are the materials management practices that will be used to reduce the risk of spills or other accidental exposure of materials and substances to stonnwater runoff. (a) Employee Training: Employee training with regard to material management practices is conducted at the site. Training includes discussions of spill response, good housekeeping, and other material management practices. Employee training generally occurs with each new employee once hired by the site contractor. Weekly tailgate training meetings are advised to ensure that as the site evolves and changes employees are up to date on all PPP practices. A training log to document these meetings can be found in Appendix J. (b) Good Housekeeping: The following good housekeeping practices will be followed onsite during the construction project. I. All materials stored onsite will be stored in a neat, orderly manner in their appropriate containers. Materials which have the potential for contaminating runoff during storm events will be stored in their appropriate watertight containers, stored under a canopy, tarpaulin, shrink wrapped or otherwise precluded from direct exposure of precipitation. 2. Empty containers that may contain chemical residues shall be disposed of in accordance with State and Local regulations. 3. Products, where possible, will be kept in their original containers with the original manufacture's label. 4. Chemical or petroleum products will not be mixed with one another unless recommended by the manufacturer. 5. Whenever possible, all of a product will be used up before disposing of the container. 6. Manufacturer's recommendations for proper use and disposal will be followed. 7. The site superintendent will inspect daily to ensure proper use and disposal of materials onsite Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Hazardous Products: These practices are used to reduce the risk associated with hazardous materials. Hazardous waste to include oil filters, petroleum products, paint, curing compounds and equipment maintenance fluids. 1. Products will be kept in original containers unless they are not re -sealable. 2. Products will be stored in structurally sound and sealed containers and segregated from other non -waste materials. 3. Original specimen labels and materials safety data sheets will be kept on file; they contain important product information. 4. If surplus product must be disposed of, manufacturers and/or local and State recommended methods for proper disposal will be followed. Product Specific Practices: The following product specific practices will be followed onsite: (a) Petroleum Products: 1. All onsite vehicles will be monitored for fluid leaks and will receive regular preventive maintenance to reduce the chance of leakage. 2. It is recommended that, if practicable, all refueling, repair and changing of equipment and vehicle fluids shall be conducted in a designated area, with the use of either spill buckets and/or fuel spill mats to reduce the potential for contamination. This area will be designed in a manner to reduce the potential for contamination of onsite resources. For refueling, repair and changing of equipment and vehicle fluids outside of the designated areas, care should be taken to avoid activities within +/- 50 feet of wetlands, streams, water bodies, tree preservation areas or any other environmentally sensitive areas. 3. Petroleum products will be stored in tightly sealed containers which are clearly labeled. 4. An area will be designated for the collection and storage of all chemical and storage of all chemical and petroleum -based products and containers for those products. The containers shall be protected from rain events. These areas are identified on the SWPPP/PPP Reference Drawing included with the "Final Construction Plans". 5. Any asphalt substances used onsite will be applied according to the manufacturer's recommendations. 6. The project superintendent will regularly inspect the site to ensure proper disposal methods of used antifreeze, oils, filters and other hazardous materials are followed. (b) Fertilizers: Fertilizers used will be applied according to manufacturer's product standards. The contents of any partially used bags of fertilizer will be transferred to a sealable plastic container to avoid spills. (c) Paints, Curing Compounds, Soaps, Solvents, and Detergents: All containers will be tightly sealed and stored when not required for use. Excess paint will be properly disposed of according to manufacturers' instructions or State and local regulations. Discharges of soaps, solvents and detergents are prohibited. (d) Concrete Trucks and Wash Water from Construction Materials and Vehicles: Concrete trucks will only wash out or discharge surplus concrete or drum wash water at approved locations in accordance with State and local regulations. Wash water must be directed into a leak proof container or leak- proof settling basin that is properly designed. The liquid and hardened concrete must then be handled and disposed of properly and is not to be discharged. Washout areas are identified on the SWPPP/PPP Reference Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Drawing included with the "Final Construction Plans". An EPA concrete washout factsheet is provided in Appendix I. Water from vehicle wash stations (if needed) is to be directed to the nearest trap as shown on the approved erosion and sediment control plan before discharged. (e) Solid Waste: All waste materials will be collected and disposed of into a metal trash dumpster in the staging area. Dumpsters will have a secure watertight lid, be placed away from stormwater conveyances and drains, and meet all local and state solid -waste management regulations. Only trash and construction debris from the site will be deposited in the dumpsters. All personnel will be instructed, during tailgate training sessions, regarding the correct procedure for disposal of trash and construction debris. Notices that state these practices will be posted in the office trailer and the individual who manages day-to-day site operations will be responsible for seeing that these practices are followed (f) Sanitary Waste: Portable lavatories are located on -site and are serviced on a regular basis by a contractor. They will be located in up -land areas away from direct contact with surface waters. Any spills occurring during servicing will be cleaned up immediately, including any contaminated soils, and disposed of according to all federal, state, and local regulations. (g) Minimization of Exposure to Precipitation and Storm Events In the event that precipitation is predicted onsite, construction activity operator to ensure that all building materials, building products, construction wastes, trash, landscape materials, fertilizers, pesticides, detergents, sanitary waste and other materials present onsite is protected from the runoff by the sure of covering tarps that securely fastened to eliminate blow off. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County r l APPROXIMATE 1 1 � I // j •C 100YR FLOODPLAIN LOCATION -- STREAM EDGE OF CREEK 10YR WSE \ LIMITS OF DISTURBANCE WPO BUFFER (GIS) Q I / 1\ SEC�B CKMOUNTAIN\ / 100YR WSE C6N�AINME�IT �� C EEK CROSSING ICAL Al1Ei / �� a- QS QRAGELAVATORY/ I X'� �`' / SF ❑ ©� PS 12+ rt oIf S PS ' \ 10YR WSE 1` LIMITS OF DISTURBANCE (0.13AC) 1 v� 10YR LIMITS / \ / I i I \ L, If 1> lr ••'il � / J ) it .' � I / i / / / / /� /�/ J/OP // < �� (. /l // / f• / ' /' / WPO BUFFER (GIS) /' /� \/•: i I •I /' /' // /' / 1 / / • • I F / /' / /' / /' ' / / / / /' /' / / / �j / / ' / , 10YRWSE 1' / / / // 40*/ 1 .•.y: / I ! I / / / 40'i k \\ •�04, // /��v� /� �� // _�OOYRWSE /�/ j / ••41f/ � 1 �GWPO BUFFED (GI$) I / / 7� R. ��l I l / �� 4OF / / J 40001�+ MUDDY RUN LIMITS OF/ CROSSING c� v�/ '� DISTUABAI)ICEK. i� /• SF /400ly /+ •••�+� I• / / / l / �/+ `� �` l l / ' / / / / / / i I / Is it I / / / / / / +i ' 11 / '� / /' / / / / 1,00e DRAIN �/ �• ��• I I / % + ��'/ / // i �/ / l / // // / / i /FIEL' / I APPROXIMATE ..• v •� LOCATION S I X // / // / / // /' /' // / / I / / /' // sa • �• 1 STREAM EDGE,OF �� `'I I I / / / // // ,/ / / / / /J /I / l / LU', �i CREEKS •.� I N I /V l �'\ I II II ) \ I\ I I I 1 I If � � � �� •� � II 1 � � 11 \1 \II I\ �I 11 \II � 111 \�\ I\ I � \I II I I � /l / //'/''/ �/' //' //' //' � � // �/' /' / 30 0 30 60 90 SCALE: 1" = 30' -c A. � .f�+/�+%T107 /�/+�7�.r`�► �/' I I I \\ \ II I \I \ \\ \\ 1 1 11 \\ \ \ \\ \\ ! v �v v / t .. � .I/ I I I I I � I I 1♦ \ , A � 1 I A 1� V A\ V v v � \ \ \ \ \ I _SF 1 } LL, 66' A \V A V\ \ 00 m I II I I 1 1 I I 1 \ v vv vv vv �v \ \ \ \ I I I II I \ I V I I V DRAIN vV v v vv �� a \ V A v x, l I 1 1 I A v v v 40• V A A FIELD \ \ \ \ \ J n F \ \ MACHLJNE THE SHEEN v 1 \ 1 30 0 SCALE: 1" = 30 SEQUENCE OF CONSTRUCTION 1. PRIOR TO ANY LAND DISTURBANCE, CONTRACTOR TO HAVE SURVEYOR FLAG CLEARING LIMITS. NO CLEARING OR GRADING IS ALLOWED OUTSIDE OF LIMITS. PERMANENT SEEDING SHALL BE APPLIED TO AREAS WHERE FINAL GRADE IS REACHED. 2. INSTALL CONSTRUCTION ENTRANCE TO GAIN ACCESS TO THE SITE. INSTALL SILT FENCE, AS INDICATED ON THE PLANS, ENSURE THAT SILT FENCE IS PLACED 1 FOOT ON THE DOWNHILL SIDE OF ALL SILL AND OR ABUTMENTS SO THERE IS AS LITTLE EARTH MOVING ACTIVITIES ALONG THE STREAM BANK AS POSSIBLE. NO STREAM DISTURBANCES SHALL OCCUR WITH THIS EROSION & SEDIMENT CONTROL PLAN. 3. PLACE BRIDGES ON CONCRETE SILL OR ABUTMENTS. 4. BUILD THE STORM WATER CONVEYANCE CHANNELS AND CLEAN WATER DIVERSIONS AS SHOWN. 5. UPON FINAL STABILIZATION AND WITH THE APPROVAL OF THE E&SC INSPECTOR EXTERIOR MEASURES MAY BE REMOVED. NOTE: IT SHALL BE THE CONTRACTOR OR OWNERS RESPONSIBILITY TO ADHERE TO REQUESTS FROM THE COUNTY'S E&S INSPECTOR TO ADD OR MODIFY E&S MEASURES DURING CONSTRUCTION. UNETYK EXISTING TREELINE PROPOSED TREELINE 10YR WATER SURFACE 100YR FLOODPLAIN ••••••••••••••I GIS WP BUFFER LIMITS OF DISTURBANCE STREAM WATERLINE CUT/FILL AREA 6" CRUSHER RUN 2" - 1 LAYER #3 STONE 10' 0.5' ,27 CROSS _SLOPE 0.5' 3O 6O 9O DRIVEWAY TYPICAL SECTION STA 11+28 to 11+75 STA 12+10 to 13+93 I w ado N o a am �> 0'D Z Z�J Q Q Q C W o W k V3 OU aZ o ¢ m $ { O UQ U 0 D o Z0 U)> ~ T Z > rn N m tr EL w > a Q N w O O a o � J Z w a a U U N w m Q a mw= rn m U z 0 a U 0 w a O o W� p4 F Z w a� a0 0 r o� Z 0 f4 wCD N 0 O N O z DESIGNED BY:j DEG DRAWN BY: I ARC CHECKED BY71 DEG o}�$�yTa of plc o 7 cl s Dustin nEE.Greene Lic. No. -6 55833 t,6 �e 2/11/22 r'43IONAL $N6 az �- U Op U O N L U� J1 W L z� U aF LwG w\ G / 0 � < w p :E U) 06 X L Oc ` 0 U F Wz 2 DATE: 03-19-2021 SCALE: 1' =20' JOB: 20-1962 FILE: 20-1962 SHEET: Z OF 05 ( GA\TMPROI\2019U-Nys mOirve Cursing\MG\EMManRxg,2 112M2:1155PM,Aut DPUF(Gene,lDxumenaion)pA Section 7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload allocation, and exceptional waters. NAME OF RECEIVING WATERS: Buck Mountain Creek JR06, 020802040201 NHD Rivers Include Muddy Creek and Buck Mountain Creek (South Fork Rivanna River) MEASURES FOR APPLICABLE TMDL: DEQ staff has determined that the proposed land -disturbing activity will discharge to a surface water identified as impaired or for which a TMDL wasteload allocation has been established and approved prior to the term of the general permit for (i) sediment or a sediment -related parameter or (ii) nutrients. Therefore, the following general permit (Part I.B.4) and SWPPP requirements (Part ILA.5) must be implemented for the land -disturbing activity: • Permanent or temporary soil stabilization shall be applied to denuded areas within seven (7) days after final grade is reached on any portion of the site. • Nutrients (e.g., fertilizers) shall be applied in accordance with manufacturer's recommendations or an approved nutrient 00management plan and shall not be applied during rainfall events. • Inspections shall be conducted at a frequency of (i) at least once every four (4) business days or (ii) at least once every five (5) business days and no later than 24 hours following a measurable storm event. In the event that a measurable stone event occurs when there are more than 24 hours between business days, the inspection shall be conducted on the next business day. • Representative inspections used by utility line installation, pipeline construction, or other similar linear construction activities shall inspect all outfalls. Environmental Data Mapper has attached the following document on the TMDL/IP Watershed Layer; Bacteria TMDL Development for the Rivanna River Mainstem, North Fork Rivanna River, Preddy Creek, and Tributaries, Meadow Creek, Mechums River, and Beaver Creek Watersheds Submitted by Virginia Department of Environmental Quality Prepared by The Louis Berger Group, Inc. Final Report March 2008 http://www.deg.virginia.gov/home/showdocument?id=l 1641&t--==637692214308570000 Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 8. Qualified personnel The following personnel are responsible for inspections; Provide the name, telephone number, and qualifications of the qualified personnel conducting inspections. Qualified personnel will be added when a contractor is hired for the site. Lines below will be filled in when assigned; Name: Company: Address: Phone: Qualifications: Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 9. Signed Certification Certification ac;u ording to 9VAC25-970-370 CERTIFICATION "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Operator Name: Jan 44If, NY I rdM Company: ]V 7 Co'n , 1 n ( . Title: Signature: Date: I I I" -N Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 10. Delegation of authority. (Provide the persons or positions with authority to sign inspection reports or to modify the stormwater pollution prevention plan. A formal, signed delegation of authority is needed.) Delegation of Authority I, (name), hereby designate the person or specifically described position below to be a duly authorized representative for the purpose of overseeing compliance with environmental requirements, including the Construction General Permit, at the construction site. The designee is authorized to sign any reports, stormwater pollution prevention plans and all other documents required by the permit. (name of person or position) (company) (address) (city, state, zip) (phone) By signing this authorization, I confirm that I meet the requirements to make such a designation as set forth in the Construction General Permit (CGP), and that the designee above meets the definition of a "duly authorized representative". Operator Name: Company: Title: Signature: Date: Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 11. General permit copy Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County COMMONWEALTH of VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY General Permit No.: VAR10 Effective Date: July 1, 2019 Expiration Date: June 30, 2024 GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION ACTIVITIES AUTHORIZATION TO DISCHARGE UNDER THE VIRGINIA STORMWATER MANAGEMENT PROGRAM AND THE VIRGINIA STORMWATER MANAGEMENT ACT In compliance with the provisions of the Clean Water Act, as amended, and pursuant to the Virginia Stormwater Management Act and regulations adopted pursuant thereto, operators of construction activities are authorized to discharge to surface waters within the boundaries of the Commonwealth of Virginia, except those specifically named in State Water Control Board regulations that prohibit such discharges. The authorized discharge shall be in accordance with the registration statement filed with the Department of Environmental Quality, this cover page, Part I - Discharge Authorization and Special Conditions, Part II - Stormwater Pollution Prevention Plan, and Part III - Conditions Applicable to All VPDES Permits as set forth in this general permit. Construction General Permit Effective July 1, 2019 Page 2 of 26 FOWTO 1 DISCHARGE AUTHORIZATION AND SPECIAL CONDITIONS A. Coverage under this general permit. During the period beginning with the date of coverage under this general permit and lasting until the general permit's expiration date, the operator is authorized to discharge stormwater from construction activities. This general permit also authorizes stormwater discharges from support activities (e.g., concrete or asphalt batch plants, equipment staging yards, material storage areas, excavated material disposal areas, borrow areas) located on -site or off -site provided that: a. The support activity is directly related to the construction activity that is required to have general permit coverage for discharges of stormwater from construction activities; b. The support activity is not a commercial operation, nor does it serve multiple unrelated construction activities by different operators; c. The support activity does not operate beyond the completion of the last construction activity it supports; d. The support activity is identified in the registration statement at the time of general permit coverage; e. Appropriate control measures are identified in a stormwater pollution prevention plan and implemented to address the discharges from the support activity areas; and f. All applicable state, federal, and local approvals are obtained for the support activity. B. Limitations on coverage. 1. Post -construction discharges. This general permit does not authorize stormwater discharges that originate from the site after construction activities have been completed and the site, including any support activity sites covered under the general permit registration, has undergone final stabilization. Post -construction industrial stormwater discharges may need to be covered by a separate VPDES permit. Discharges mixed with nonstormwater. This general permit does not authorize discharges that are mixed with sources of nonstormwater, other than those discharges that are identified in Part I E (Authorized nonstormwater discharges) and are in compliance with this general permit. Discharges covered by another state permit. This general permit does not authorize discharges of stormwater from construction activities that have been covered under an individual permit or required to obtain coverage under an alternative general permit. Page 3 of 26 4. Impaired waters and total maximum daily load (TMDL) limitation. Nutrient and sediment impaired waters. Discharges of stormwater from construction activities to surface waters identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report or for which a TMDL wasteload allocation has been established and approved prior to the term of this general permit for (i) sediment or a sediment -related parameter (i.e., total suspended solids or turbidity) or (ii) nutrients (i.e., nitrogen or phosphorus) are not eligible for coverage under this general permit unless the operator develops, implements, and maintains a stormwater pollution prevention plan (SWPPP) in accordance with Part II B 5 of this permit that minimizes the pollutants of concern and, when applicable, is consistent with the assumptions and requirements of the approved TMDL wasteload allocations and implements an inspection frequency consistent with Part II G 2 a. Polychlorinated biphenyl (PCB) impaired waters. Discharges of stormwater from construction activities that include the demolition of any structure with at least 10,000 square feet of floor space built or renovated before January 1, 1980, to surface waters identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report or for which a TMDL wasteload allocation has been established and approved prior to the term of this general permit for PCB are not eligible for coverage under this general permit unless the operator develops, implements, and maintains a SWPPP in accordance with Part II B 6 of this permit that minimizes the pollutants of concern and, when applicable, is consistent with the assumptions and requirements of the approved TMDL wasteload allocations, and implements an inspection frequency consistent with Part II G 2 a. Exceptional waters limitation. Discharges of stormwater from construction activities not previously covered under the general permit effective on July 1, 2014, to exceptional waters identified in 9VAC25-260-30 A 3 c are not eligible for coverage under this general permit unless the operator develops, implements, and maintains a SWPPP in accordance with Part II B 7 of this permit and implements an inspection frequency consistent with Part II G 2 a. 6. There shall be no discharge of floating solids or visible foam in other than trace amounts C. Commingled discharges. Discharges authorized by this general permit may be commingled with other sources of stormwater that are not required to be covered under a state permit, so long as the commingled discharge is in compliance with this general permit. Discharges authorized by a separate state or VPDES permit may be commingled with discharges authorized by this general permit so long as all such discharges comply with all applicable state and VPDES permit requirements. D. Prohibition of nonstormwater discharges. Except as provided in Parts I A 2, 1 C, and I E, all discharges covered by this general permit shall be composed entirely of stormwater associated with construction activities. All other discharges including the following are prohibited: 1. Wastewater from washout of concrete; 2. Wastewater from the washout and cleanout of stucco, paint, form release oils, curing compounds, and other construction materials; Page 4 of 26 3. Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance; 4. Oils, toxic substances, or hazardous substances from spills or other releases; and 5. Soaps, solvents, or detergents used in equipment and vehicle washing. E. Authorized nonstormwater discharges. The following nonstormwater discharges from construction activities are authorized by this general permit when discharged in compliance with this general permit: 1. Discharges from firefighting activities; 2. Fire hydrant flushings; 3. Waters used to wash vehicles or equipment where soaps, solvents, or detergents have not been used and the wash water has been filtered, settled, or similarly treated prior to discharge; 4. Water used to control dust that has been filtered, settled, or similarly treated prior to discharge; 5. Potable water sources, including uncontaminated waterline flushings, managed in a manner to avoid an instream impact; 6. Routine external building wash down where soaps, solvents or detergents have not been used and the wash water has been filtered, settled, or similarly treated prior to discharge; 7. Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred (or where all spilled or leaked material has been removed prior to washing); where soaps, solvents, or detergents have not been used; and where the wash water has been filtered, settled, or similarly treated prior to discharge; 8. Uncontaminated air conditioning or compressor condensate; 9. Uncontaminated ground water or spring water; 10. Foundation or footing drains where flows are not contaminated with process materials such as solvents; 11. Uncontaminated excavation dewatering, including dewatering of trenches and excavations that have been filtered, settled, or similarly treated prior to discharge; and 12. Landscape irrigation. F. Termination of general permit coverage. 1. The operator of the construction activity shall submit a notice of termination in accordance with 9VAC25-880-60, unless a registration statement was not required to be submitted in accordance with 9VAC25-880-50 A 1 c or A 2 b for single-family detached residential structures, to the VSMP authority after one or more of the following conditions have been met: Page 5 of 26 a. Necessary permanent control measures included in the SWPPP for the site are in place and functioning effectively and final stabilization has been achieved on all portions of the site for which the operator has operational control. When applicable, long term responsibility and maintenance requirements for permanent control measures shall be recorded in the local land records prior to the submission of a complete and accurate notice of termination and the construction record drawing prepared; b. Another operator has assumed control over all areas of the site that have not been finally stabilized and obtained coverage for the ongoing discharge; c. Coverage under an alternative VPDES or state permit has been obtained; or d. For individual lots in residential construction only, final stabilization as defined in 9VAC25- 880-1 has been completed, including providing written notification to the homeowner and incorporating a copy of the notification and signed certification statement into the SWPPP, and the residence has been transferred to the homeowner. The notice of termination shall be submitted no later than 30 days after one of the above conditions in subdivision 1 of this subsection is met. 3. Termination of authorization to discharge for the conditions set forth in subdivision 1 a of this subsection shall be effective upon notification from the department that the provisions of subdivision 1 a of this subsection have been met or 60 days after submittal of a complete and accurate notice of termination in accordance with 9VAC25-880-60 C, whichever occurs first. 4. Authorization to discharge terminates at midnight on the date that the notice of termination is submitted for the conditions set forth in subdivisions 1 b through 1 d of this subsection unless otherwise notified by the VSMP authority or department. 5. The notice of termination shall be signed in accordance with Part III K of this general permit. G. Water quality protection. 1. The operator shall select, install, implement, and maintain control measures as identified in the SWPPP at the construction site that minimize pollutants in the discharge as necessary to ensure that the operator's discharge does not cause or contribute to an excursion above any applicable water quality standard. If it is determined by the department that the operator's discharges are causing, have reasonable potential to cause, or are contributing to an excursion above any applicable water quality standard, the department, in consultation with the VSMP authority, may take appropriate enforcement action and require the operator to: a. Modify or implement additional control measures in accordance with Part II C to adequately address the identified water quality concerns; b. Submit valid and verifiable data and information that are representative of ambient conditions and indicate that the receiving water is attaining water quality standards; or Page 6 of 26 c. Submit an individual permit application in accordance with 9VAC25-870-410 B 3. All written responses required under this chapter shall include a signed certification consistent with Part III K. STORMWATER POLLUTION PREVENTION PLAN A. Stormwater pollution prevent plan. A stormwater pollution prevention plan (SWPPP) shall be developed prior to the submission of a registration statement and implemented for the construction activity, including any support activity, covered by this general permit. SWPPPs shall be prepared in accordance with good engineering practices. Construction activities that are part of a larger common plan of development or sale and disturb less than one acre may utilize a SWPPP template provided by the department and need not provide a separate stormwater management plan if one has been prepared and implemented for the larger common plan of development or sale. The SWPPP requirements of this general permit may be fulfilled by incorporating by reference other plans such as a spill prevention control and countermeasure (SPCC) plan developed for the site under § 311 of the federal Clean Water Act or best management practices (BMP) programs otherwise required for the facility provided that the incorporated plan meets or exceeds the SWPPP requirements of Part II B. All plans incorporated by reference into the SWPPP become enforceable under this general permit. If a plan incorporated by reference does not contain all of the required elements of the SWPPP, the operator shall develop the missing elements and include them in the SWPPP. 3. Any operator that was authorized to discharge under the general permit effective July 1, 2014, and that intends to continue coverage under this general permit, shall update its stormwater pollution prevention plan to comply with the requirements of this general permit no later than 60 days after the date of coverage under this general permit. B. Contents. The SWPPP shall include the following items: 1. General information. a. A signed copy of the registration statement, if required, for coverage under the general VPDES permit for discharges of stormwater from construction activities; b. Upon receipt, a copy of the notice of coverage under the general VPDES permit for discharges of stormwater from construction activities (i.e., notice of coverage letter); c. Upon receipt, a copy of the general VPDES permit for discharges of stormwater from construction activities; d. A narrative description of the nature of the construction activity, including the function of the project (e.g., low density residential, shopping mall, highway, etc.); e. A legible site plan identifying: Page 7 of 26 (1) Directions of stormwater flow and approximate slopes anticipated after major grading activities; (2) Limits of land disturbance including steep slopes and natural buffers around surface waters that will not be disturbed; (3) Locations of major structural and nonstructural control measures, including sediment basins and traps, perimeter dikes, sediment barriers, and other measures intended to filter, settle, or similarly treat sediment, that will be installed between disturbed areas and the undisturbed vegetated areas in order to increase sediment removal and maximize stormwater infiltration; (4) Locations of surface waters; (5) Locations where concentrated stormwater is discharged; (6) Locations of any support activities, including (i) areas where equipment and vehicle washing, wheel wash water, and other wash water is to occur; (ii) storage areas for chemicals such as acids, fuels, fertilizers, and other lawn care chemicals; (iii) concrete wash out areas; (iv) vehicle fueling and maintenance areas; (v) sanitary waste facilities, including those temporarily placed on the construction site; and (vi) construction waste storage; and (7) When applicable, the location of the on -site rain gauge or the methodology established in consultation with the VSMP authority used to identify measurable storm events for inspection as allowed by Part II G 2 a (1) (ii) or Part II G 2 b (2). Erosion and sediment control plan. a. An erosion and sediment control plan designed and approved in accordance with the Virginia Erosion and Sediment Control Regulations (9VAC25-840), an "agreement in lieu of a plan" as defined in 9VAC25-840-10 from the VESCP authority, or an erosion and sediment control plan prepared in accordance with annual standards and specifications approved by the department. b. All erosion and sediment control plans shall include a statement describing the maintenance responsibilities required for the erosion and sediment controls used. c. An approved erosion and sediment control plan, "agreement in lieu of a plan," or erosion and sediment control plan prepared in accordance with department -approved annual standards and specifications, implemented to: (1) Control the volume and velocity of stormwater runoff within the site to minimize soil erosion; (2) Control stormwater discharges, including peak flow rates and total stormwater volume, to minimize erosion at outlets and to minimize downstream channel and stream bank erosion; Page 8 of 26 (3) Minimize the amount of soil exposed during the construction activity; (4) Minimize the disturbance of steep slopes; (5) Minimize sediment discharges from the site in a manner that addresses (i) the amount, frequency, intensity, and duration of precipitation; (ii) the nature of resulting stormwater runoff; and (iii) soil characteristics, including the range of soil particle sizes present on the site; (6) Provide and maintain natural buffers around surface waters, direct stormwater to vegetated areas to increase sediment removal, and maximize stormwater infiltration, unless infeasible; (7) Minimize soil compaction and, unless infeasible, preserve topsoil; (8) Ensure initiation of stabilization activities, as defined in 9VAC25-880-1, of disturbed areas immediately whenever any clearing, grading, excavating, or other land - disturbing activities have permanently ceased on any portion of the site, or temporarily ceased on any portion of the site and will not resume for a period exceeding 14 days; and (9) Utilize outlet structures that withdraw stormwater from the surface (i.e., above the permanent pool or wet storage water surface elevation), unless infeasible, when discharging from sediment basins or sediment traps. 3. Stormwater management plan. a. Except for those projects identified in Part II B 3 b, a stormwater management plan approved by the VSMP authority as authorized under the Virginia Stormwater Management Program (VSMP) Regulation (9VAC25-870), or an "agreement in lieu of a stormwater management plan" as defined in 9VAC25-870-10 from the VSMP authority, or a stormwater management plan prepared in accordance with annual standards and specifications approved by the department. b. For any operator meeting the conditions of 9VAC25-870-47 B of the VSMP regulation, an approved stormwater management plan is not required. In lieu of an approved stormwater management plan, the SWPPP shall include a description of, and all necessary calculations supporting, all post -construction stormwater management measures that will be installed prior to the completion of the construction process to control pollutants in stormwater discharges after construction operations have been completed. Structural measures should be placed on upland soils to the degree possible. Such measures must be designed and installed in accordance with applicable VESCP authority, VSMP authority, state, and federal requirements, and any necessary permits must be obtained. Pollution prevention plan. A pollution prevention plan that addresses potential pollutant - generating activities that may reasonably be expected to affect the quality of stormwater discharges from the construction activity, including any support activity. The pollution prevention plan shall: a. Identify the potential pollutant -generating activities and the pollutant that is expected to be exposed to stormwater; Page 9 of 26 b. Describe the location where the potential pollutant -generating activities will occur, or if identified on the site plan, reference the site plan; c. Identify all nonstormwater discharges, as authorized in Part I E of this general permit, that are or will be commingled with stormwater discharges from the construction activity, including any applicable support activity; d. Identify the person responsible for implementing the pollution prevention practice or practices for each pollutant -generating activity (if other than the person listed as the qualified personnel); e. Describe the pollution prevention practices and procedures that will be implemented to: (1) Prevent and respond to leaks, spills, and other releases including (i) procedures for expeditiously stopping, containing, and cleaning up spills, leaks, and other releases; and (ii) procedures for reporting leaks, spills, and other releases in accordance with Part III G; (2) Prevent the discharge of spilled and leaked fuels and chemicals from vehicle fueling and maintenance activities (e.g., providing secondary containment such as spill berms, decks, spill containment pallets, providing cover where appropriate, and having spill kits readily available); (3) Prevent the discharge of soaps, solvents, detergents, and wash water from construction materials, including the clean-up of stucco, paint, form release oils, and curing compounds (e.g., providing (i) cover (e.g., plastic sheeting or temporary roofs) to prevent contact with stormwater; (ii) collection and proper disposal in a manner to prevent contact with stormwater; and (iii) a similarly effective means designed to prevent discharge of these pollutants); (4) Minimize the discharge of pollutants from vehicle and equipment washing, wheel wash water, and other types of washing (e.g., locating activities away from surface waters and stormwater inlets or conveyance and directing wash waters to sediment basins or traps, using filtration devices such as filter bags or sand filters, or using similarly effective controls); (5) Direct concrete wash water into a leak -proof container or leak -proof settling basin. The container or basin shall be designed so that no overflows can occur due to inadequate sizing or precipitation. Hardened concrete wastes shall be removed and disposed of in a manner consistent with the handling of other construction wastes. Liquid concrete wastes shall be removed and disposed of in a manner consistent with the handling of other construction wash waters and shall not be discharged to surface waters; (6) Minimize the discharge of pollutants from storage, handling, and disposal of construction products, materials, and wastes including (i) building products such as asphalt sealants, copper flashing, roofing materials, adhesives, and concrete admixtures; (ii) pesticides, herbicides, insecticides, fertilizers, and landscape Page 10 of 26 materials; and (iii) construction and domestic wastes such as packaging materials, scrap construction materials, masonry products, timber, pipe and electrical cuttings, plastics, Styrofoam, concrete, and other trash or building materials; (7) Prevent the discharge of fuels, oils, and other petroleum products, hazardous or toxic wastes, waste concrete, and sanitary wastes; (8) Address any other discharge from the potential pollutant -generating activities not addressed above; (9) Minimize the exposure of waste materials to precipitation by closing or covering waste containers during precipitation events and at the end of the business day, or implementing other similarly effective practices. Minimization of exposure is not required in cases where the exposure to precipitation will not result in a discharge of pollutants; and f. Describe procedures for providing pollution prevention awareness of all applicable wastes, including any wash water, disposal practices, and applicable disposal locations of such wastes, to personnel in order to comply with the conditions of this general permit. The operator shall implement the procedures described in the SWPPP. SWPPP requirements for discharges to nutrient and sediment impaired waters. For discharges to surface waters (i) identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report or (ii) with an applicable TMDL wasteload allocation established and approved prior to the term of this general permit for sediment for a sediment - related parameter (i.e., total suspended solids or turbidity) or nutrients (i.e., nitrogen or phosphorus), the operator shall: a. Identify the impaired waters, approved TMDLs, and pollutants of concern in the SWPPP; and b. Provide clear direction in the SWPPP that: (1) Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final grade is reached on any portion of the site; (2) Nutrients shall be applied in accordance with manufacturer's recommendations or an approved nutrient management plan and shall not be applied during rainfall events; and (3) A modified inspection schedule shall be implemented in accordance with Part II G 2 a. SWPPP requirements for discharges to polychlorinated biphenyl (PCB) impaired waters. For discharges from construction activities that include the demolition of any structure with at least 10,000 square feet of floor space built or renovated before January 1, 1980, to surface waters (i) identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report or (ii) with an applicable TMDL wasteload allocation established and approved prior to the term of this general permit for PCB, the operator shall: Page 11 of 26 a. Identify the impaired waters, approved TMDLs, and pollutant of concern in the SWPPP; b. Implement the approved erosion and sediment control plan in accordance with Part II B 2; c. Dispose of waste materials in compliance with applicable state, federal, and local requirements; and d. Implement a modified inspection schedule in accordance with Part II G 2 a. 7. SWPPP requirements for discharges to exceptional waters. For discharges to surface waters identified in 9VAC25-260-30 A 3 c as an exceptional water, the operator shall: a. Identify the exceptional surface waters in the SWPPP; and b. Provide clear direction in the SWPPP that: (1) Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final grade is reached on any portion of the site; (2) Nutrients shall be applied in accordance with manufacturer's recommendations or an approved nutrient management plan and shall not be applied during rainfall events; and (3) A modified inspection schedule shall be implemented in accordance with Part II G 2 a. 8. Identification of qualified personnel. The name, phone number, and qualifications of the qualified personnel conducting inspections required by this general permit. 9. Delegation of authority. The individuals or positions with delegated authority, in accordance with Part III K, to sign inspection reports or modify the SWPPP. 10. SWPPP signature. The SWPPP shall be signed and dated in accordance with Part III K. C. SWPPP amendments, modification, and updates. 1. The operator shall amend the SWPPP whenever there is a change in the design, construction, operation, or maintenance that has a significant effect on the discharge of pollutants to surface waters and that has not been previously addressed in the SWPPP. The SWPPP shall be amended if, during inspections or investigations by the operator's qualified personnel, or by local, state, or federal officials, it is determined that the existing control measures are ineffective in minimizing pollutants in discharges from the construction activity. Revisions to the SWPPP shall include additional or modified control measures designed and implemented to correct problems identified. If approval by the VESCP authority, VSMP authority, or department is necessary for the control measure, revisions to the SWPPP shall be completed no later than seven calendar days following approval. Implementation of these additional or modified control measures shall be accomplished as described in Part II H. Page 12 of 26 3. The SWPPP shall clearly identify the contractors that will implement and maintain each control measure identified in the SWPPP. The SWPPP shall be amended to identify any new contractor that will implement and maintain a control measure. 4. The operator shall update the SWPPP as soon as possible but no later than seven days following any modification to its implementation. All modifications or updates to the SWPPP shall be noted and shall include the following items: a. A record of dates when: (1) Major grading activities occur; (2) Construction activities temporarily or permanently cease on a portion of the site; and (3) Stabilization measures are initiated; b. Documentation of replaced or modified controls where periodic inspections or other information have indicated that the controls have been used inappropriately or incorrectly and were modified; c. Areas that have reached final stabilization and where no further SWPPP or inspection requirements apply; d. All properties that are no longer under the legal control of the operator and the dates on which the operator no longer had legal control over each property; e. The date of any prohibited discharges, the discharge volume released, and what actions were taken to minimize the impact of the release; f. Measures taken to prevent the reoccurrence of any prohibited discharge; and g. Measures taken to address any evidence identified as a result of an inspection required under Part II G. 5. Amendments, modifications, or updates to the SWPPP shall be signed in accordance with Part III K. D. Public notification. Upon commencement of land disturbance, the operator shall post conspicuously a copy of the notice of coverage letter near the main entrance of the construction activity. For linear projects, the operator shall post the notice of coverage letter at a publicly accessible location near an active part of the construction project (e.g., where a pipeline crosses a public road). The operator shall maintain the posted information until termination of general permit coverage as specified in Part I F. E. SWPPP availability. 1. Operators with day-to-day operational control over SWPPP implementation shall have a copy of the SWPPP available at a central location on -site for use by those identified as having responsibilities under the SWPPP whenever they are on the construction site. Page 13 of 26 The operator shall make the SWPPP and all amendments, modifications, and updates available upon request to the department, the VSMP authority, the EPA, the VESCP authority, local government officials, or the operator of a municipal separate storm sewer system receiving discharges from the construction activity. If an on -site location is unavailable to store the SWPPP when no personnel are present, notice of the SWPPP's location shall be posted near the main entrance of the construction site. The operator shall make the SWPPP available for public review in an electronic format or in hard copy. Information for public access to the SWPPP shall be posted and maintained in accordance with Part II D. If not provided electronically, public access to the SWPPP may be arranged upon request at a time and at a publicly accessible location convenient to the operator or his designee but shall be no less than once per month and shall be during normal business hours. Information not required to be contained within the SWPPP by this general permit is not required to be released. F. SWPPP implementation. The operator shall implement the SWPPP and subsequent amendments, modifications, and updates from commencement of land disturbance until termination of general permit coverage as specified in Part I F. All control measures shall be properly maintained in effective operating condition in accordance with good engineering practices and, where applicable, manufacturer specifications. If a site inspection required by Part II G identifies a control measure that is not operating effectively, corrective actions shall be completed as soon as practicable, but no later than seven days after discovery or a longer period as established by the VSMP authority, to maintain the continued effectiveness of the control measures. If site inspections required by Part II G identify an existing control measure that needs to be modified or if an additional or alternative control measure is necessary for any reason, implementation shall be completed prior to the next anticipated measurable storm event. If implementation prior to the next anticipated measurable storm event is impracticable, then additional or alternative control measures shall be implemented as soon as practicable, but no later than seven days after discovery or a longer period as established by the VSMP authority. G. SWPPP Inspections. 1. Personnel responsible for on -site and off -site inspections. Inspections required by this general permit shall be conducted by the qualified personnel identified by the operator in the SWPPP. The operator is responsible for ensuring that the qualified personnel conduct the inspection. 2. Inspection schedule. a. For construction activities that discharge to a surface water identified in Part 11 B 5 and B 6 as impaired or having an approved TMDL or Part I B 7 as exceptional, the following inspection schedule requirements apply: (1) Inspections shall be conducted at a frequency of (i) at least once every four business days or (ii) at least once every five business days and no later than 24 hours following a measurable storm event. In the event that a measurable storm event occurs when Page 14 of 26 there are more than 24 hours between business days, the inspection shall be conducted on the next business day; and (2) Representative inspections as authorized in Part II G 2 d shall not be allowed. b. Except as specified in Part II G 2 a, inspections shall be conducted at a frequency of: (1) At least once every five business days; or (2) At least once every 10 business days and no later than 24 hours following a measurable storm event. In the event that a measurable storm event occurs when there are more than 24 hours between business days, the inspection shall be conducted on the next business day. c. Where areas have been temporarily stabilized or land -disturbing activities will be suspended due to continuous frozen ground conditions and stormwater discharges are unlikely, the inspection frequency described in Part II G 2 a and 2 b may be reduced to once per month. If weather conditions (such as above freezing temperatures or rain or snow events) make discharges likely, the operator shall immediately resume the regular inspection frequency. d. Except as prohibited in Part II G 2 a (2), representative inspections may be utilized for utility line installation, pipeline construction, or other similar linear construction activities provided that: (1) Temporary or permanent soil stabilization has been installed and vehicle access may compromise the temporary or permanent soil stabilization and potentially cause additional land disturbance increasing the potential for erosion; (2) Inspections occur on the same frequency as other construction activities; (3) Control measures are inspected along the construction site 0.25 miles above and below each access point (i.e., where a roadway, undisturbed right-of-way, or other similar feature intersects the construction activity and access does not compromise temporary or permanent soil stabilization); and (4) Inspection locations are provided in the inspection report required by Part II G. e. If adverse weather causes the safety of the inspection personnel to be in jeopardy, the inspection may be delayed until the next business day on which it is safe to perform the inspection. Any time inspections are delayed due to adverse weather conditions, evidence of the adverse weather conditions shall be included in the SWPPP with the dates of occurrence. 3. Inspection requirements. a. As part of the inspection, the qualified personnel shall: (1) Record the date and time of the inspection and, when applicable, the date and rainfall amount of the last measurable storm event; Page 15 of 26 (2) Record the information and a description of any discharges occurring at the time of the inspection or evidence of discharges occurring prior to the inspection; (3) Record any land -disturbing activities that have occurred outside of the approved erosion and sediment control plan; (4) Inspect the following for installation in accordance with the approved erosion and sediment control plan, identification of any maintenance needs, and evaluation of effectiveness in minimizing sediment discharge, including whether the control has been inappropriately or incorrectly used: (a) All perimeter erosion and sediment controls, such as silt fence; (b) Soil stockpiles, when applicable, and borrow areas for stabilization or sediment trapping measures; (c) Completed earthen structures, such as dams, dikes, ditches, and diversions for stabilization and effective impoundment or flow control; (d) Cut and fill slopes; (e) Sediment basins and traps, sediment barriers, and other measures installed to control sediment discharge from stormwater; (f) Temporary or permanent channels, flumes, or other slope drain structures installed to convey concentrated runoff down cut and fill slopes; (g) Storm inlets that have been made operational to ensure that sediment laden stormwater does not enter without first being filtered or similarly treated; and (h) Construction vehicle access routes that intersect or access paved or public roads for minimizing sediment tracking; (5) Inspect areas that have reached final grade or that will remain dormant for more than 14 days to ensure: (a) Initiation of stabilization activities have occurred immediately, as defined in 9VAC25-880-1; and (b) Stabilization activities have been completed within seven days of reaching grade or stopping work; (6) Inspect for evidence that the approved erosion and sediment control plan, "agreement in lieu of a plan," or erosion and sediment control plan prepared in accordance with department -approved annual standards and specifications has not been properly implemented. This includes: Page 16 of 26 (a) Concentrated flows of stormwater in conveyances such as rills, rivulets, or channels that have not been filtered, settled, or similarly treated prior to discharge, or evidence thereof; (b) Sediment laden or turbid flows of stormwater that have not been filtered or settled to remove sediments prior to discharge; (c) Sediment deposition in areas that drain to unprotected stormwater inlets or catch basins that discharge to surface waters. Inlets and catch basins with failing sediment controls due to improper installation, lack of maintenance, or inadequate design are considered unprotected; (d) Sediment deposition on any property (including public and private streets) outside of the construction activity covered by this general permit; (e) Required stabilization has not been initiated or completed or is not effective on portions of the site; (f) Sediment basins without adequate wet or dry storage volume or sediment basins that allow the discharge of stormwater from below the surface of the wet storage portion of the basin; (g) Sediment traps without adequate wet or dry storage or sediment traps that allow the discharge of stormwater from below the surface of the wet storage portion of the trap; and (h) Land disturbance or sediment deposition outside of the approved area to be disturbed; (7) Inspect pollutant generating activities identified in the pollution prevention plan for the proper implementation, maintenance, and effectiveness of the procedures and practices; (8) Identify any pollutant generating activities not identified in the pollution prevention plan; and (9) Identify and document the presence of any evidence of the discharge of pollutants prohibited by this general permit. 4. Inspection report. Each inspection report shall include the following items: a. The date and time of the inspection and, when applicable, the date and rainfall amount of the last measurable storm event; b. Summarized findings of the inspection; c. The locations of prohibited discharges; d. The locations of control measures that require maintenance; Page 17 of 26 e. The locations of control measures that failed to operate as designed or proved inadequate or inappropriate for a particular location; f. The locations where any evidence identified under Part II G 3 a (6) exists; g. The locations where any additional control measure is needed; h. A list of corrective actions required (including any changes to the SWPPP that are necessary) as a result of the inspection or to maintain permit compliance; i. Documentation of any corrective actions required from a previous inspection that have not been implemented; and The date and signature of the qualified personnel and the operator or its duly authorized representative. 5. The inspection report shall be included into the SWPPP no later than four business days after the inspection is complete. The inspection report and any actions taken in accordance with Part II shall be retained by the operator as part of the SWPPP for at least three years from the date that general permit coverage expires or is terminated. The inspection report shall identify any incidents of noncompliance. Where an inspection report does not identify any incidents of noncompliance, the report shall contain a certification that the construction activity is in compliance with the SWPPP and this general permit. The report shall be signed in accordance with Part III K of this general permit. H. Corrective actions. The operator shall implement the corrective actions identified as a result of an inspection as soon as practicable but no later than seven days after discovery or a longer period as approved by the VSMP authority. If approval of a corrective action by a regulatory authority (e.g., VSMP authority, VESCP authority, or the department) is necessary, additional control measures shall be implemented to minimize pollutants in stormwater discharges until such approvals can be obtained. The operator may be required to remove accumulated sediment deposits located outside of the construction activity covered by this general permit as soon as practicable in order to minimize environmental impacts. The operator shall notify the VSMP authority and the department as well as obtain all applicable federal, state, and local authorizations, approvals, and permits prior to the removal of sediments accumulated in surface waters including wetlands. Page 18 of 26 PART III CONDITIONS APPLICABLE TO ALL VPDES PERMITS NOTE: Discharge monitoring is not required for this general permit. If the operator chooses to monitor stormwater discharges or control measures, the operator shall comply with the requirements of subsections A, B, and C, as appropriate. A. Monitoring. 1. Samples and measurements taken for the purpose of monitoring shall be representative of the monitoring activity. Monitoring shall be conducted according to procedures approved under 40 CFR Part 136 or alternative methods approved by the U.S. Environmental Protection Agency, unless other procedures have been specified in this general permit. Analyses performed according to test procedures approved under 40 CFR Part 136 shall be performed by an environmental laboratory certified under regulations adopted by the Department of General Services (1 VAC30-45 or 1 VAC30-46). 3. The operator shall periodically calibrate and perform maintenance procedures on all monitoring and analytical instrumentation at intervals that will ensure accuracy of measurements. B. Records. 1. Monitoring records and reports shall include a. The date, exact place, and time of sampling or measurements; b. The individuals who performed the sampling or measurements; c. The dates and times analyses were performed; d. The individuals who performed the analyses; e. The analytical techniques or methods used; and f. The results of such analyses. 2. The operator shall retain records of all monitoring information, including all calibration and maintenance records and all original strip chart recordings for continuous monitoring instrumentation, copies of all reports required by this general permit, and records of all data used to complete the registration statement for this general permit, for a period of at least three years from the date of the sample, measurement, report or request for coverage. This period of retention shall be extended automatically during the course of any unresolved litigation regarding the regulated activity or regarding control standards applicable to the operator, or as requested by the board. C. Reporting monitoring results. Page 19 of 26 1. The operator shall update the SWPPP to include the results of the monitoring as may be performed in accordance with this general permit, unless another reporting schedule is specified elsewhere in this general permit. 2. Monitoring results shall be reported on a discharge monitoring report (DMR); on forms provided, approved or specified by the department; or in any format provided that the date, location, parameter, method, and result of the monitoring activity are included. If the operator monitors any pollutant specifically addressed by this general permit more frequently than required by this general permit using test procedures approved under 40 CFR Part 136 or using other test procedures approved by the U.S. Environmental Protection Agency or using procedures specified in this general permit, the results of this monitoring shall be included in the calculation and reporting of the data submitted in the DMR or reporting form specified by the department. 4. Calculations for all limitations which require averaging of measurements shall utilize an arithmetic mean unless otherwise specified in this general permit. D. Duty to provide information. The operator shall furnish, within a reasonable time, any information which the board may request to determine whether cause exists for terminating this general permit coverage or to determine compliance with this general permit. The board, department, EPA, or VSMP authority may require the operator to furnish, upon request, such plans, specifications, and other pertinent information as may be necessary to determine the effect of the wastes from his discharge on the quality of surface waters, or such other information as may be necessary to accomplish the purposes of the CWA and the Virginia Stormwater Management Act. The operator shall also furnish to the board, department, EPA, or VSMP authority, upon request, copies of records required to be kept by this general permit. E. Compliance schedule reports. Reports of compliance or noncompliance with, or any progress reports on, interim and final requirements contained in any compliance schedule of this general permit shall be submitted no later than 14 days following each schedule date. F. Unauthorized stormwater discharges. Pursuant to § 62.1-44.5 of the Code of Virginia, except in compliance with a state permit issued by the department, it shall be unlawful to cause a stormwater discharge from a construction activity. G. Reports of unauthorized discharges. Any operator who discharges or causes or allows a discharge of sewage, industrial waste, other wastes or any noxious or deleterious substance or a hazardous substance or oil in an amount equal to or in excess of a reportable quantity established under either 40 CFR Part 110, 40 CFR Part 117, 40 CFR Part 302, or § 62.1-44.34:19 of the Code of Virginia that occurs during a 24-hour period into or upon surface waters or who discharges or causes or allows a discharge that may reasonably be expected to enter surface waters, shall notify the Department of Environmental Quality of the discharge immediately upon discovery of the discharge, but in no case later than within 24 hours after said discovery. A written report of the unauthorized discharge shall be submitted to the department and the VSMP authority within five days of discovery of the discharge. The written report shall contain: 1. A description of the nature and location of the discharge; 2. The cause of the discharge; Page 20 of 26 3. The date on which the discharge occurred; 4. The length of time that the discharge continued; 5. The volume of the discharge; 6. If the discharge is continuing, how long it is expected to continue; 7. If the discharge is continuing, what the expected total volume of the discharge will be; and Any steps planned or taken to reduce, eliminate and prevent a recurrence of the present discharge or any future discharges not authorized by this general permit. Discharges reportable to the department and the VSMP authority under the immediate reporting requirements of other regulations are exempted from this requirement. H. Reports of unusual or extraordinary discharges. If any unusual or extraordinary discharge including a "bypass" or "upset," as defined in this general permit, should occur from a facility and the discharge enters or could be expected to enter surface waters, the operator shall promptly notify, in no case later than within 24 hours, the department and the VSMP authority by telephone after the discovery of the discharge. This notification shall provide all available details of the incident, including any adverse effects on aquatic life and the known number of fish killed. The operator shall reduce the report to writing and shall submit it to the department and the VSMP authority within five days of discovery of the discharge in accordance with Part III 12. Unusual and extraordinary discharges include any discharge resulting from: 1. Unusual spillage of materials resulting directly or indirectly from processing operations; 2. Breakdown of processing or accessory equipment; 3. Failure or taking out of service of some or all of the facilities; and 4. Flooding or other acts of nature. I. Reports of noncompliance. The operator shall report any noncompliance which may adversely affect surface waters or may endanger public health. An oral report to the department and the VSMP authority shall be provided within 24 hours from the time the operator becomes aware of the circumstances. The following shall be included as information that shall be reported within 24 hours under this subdivision: a. Any unanticipated bypass; and b. Any upset that causes a discharge to surface waters. 2. A written report shall be submitted within five days and shall contain: a. A description of the noncompliance and its cause; Page 21 of 26 b. The period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and c. Steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance. The department may waive the written report on a case -by -case basis for reports of noncompliance under Part III I if the oral report has been received within 24 hours and no adverse impact on surface waters has been reported. 3. The operator shall report all instances of noncompliance not reported under Part III 1 1 or 2 in writing as part of the SWPPP. The reports shall contain the information listed in Part 111 1 2. NOTE: The reports required in Part III G, H and I shall be made to the department and the VSMP authority. Reports may be made by telephone, email, or by fax. For reports outside normal working hours, leaving a recorded message shall fulfill the immediate reporting requirement. For emergencies, the Virginia Department of Emergency Management maintains a 24-hour telephone service at 1-800-468-8892. 4. Where the operator becomes aware of a failure to submit any relevant facts, or submittal of incorrect information in any report, including a registration statement, to the department or the VSMP authority, the operator shall promptly submit such facts or correct information. J. Notice of planned changes. 1. The operator shall give notice to the department and the VSMP authority as soon as possible of any planned physical alterations or additions to the permitted facility or activity. Notice is required only when: a. The operator plans an alteration or addition to any building, structure, facility, or installation that may meet one of the criteria for determining whether a facility is a new source in 9VAC25-870-420; b. The operator plans an alteration or addition that would significantly change the nature or increase the quantity of pollutants discharged. This notification applies to pollutants that are not subject to effluent limitations in this general permit; or 2. The operator shall give advance notice to the department and VSMP authority of any planned changes in the permitted facility or activity, which may result in noncompliance with state permit requirements. K. Signatory requirements. 1. Registration statement. All registration statements shall be signed as follows: a. For a corporation: by a responsible corporate officer. For the purpose of this chapter, a responsible corporate officer means: (i) a president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy -making or decision -making functions for the corporation; or (ii) the manager of one or more manufacturing, production, or operating facilities, provided the Page 22 of 26 manager is authorized to make management decisions that govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long-term compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for state permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures; b. For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or c. For a municipality, state, federal, or other public agency: by either a principal executive officer or ranking elected official. For purposes of this chapter, a principal executive officer of a public agency includes (i) the chief executive officer of the agency or (ii) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency. 2. Reports and other information. All reports required by this general permit, including SWPPPs, and other information requested by the board or the department shall be signed by a person described in Part III K 1 or by a duly authorized representative of that person. A person is a duly authorized representative only if: a. The authorization is made in writing by a person described in Part III K 1; b. The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity such as the position of plant manager, operator of a well or a well field, superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the operator. (A duly authorized representative may thus be either a named individual or any individual occupying a named position); and c. The signed and dated written authorization is included in the SWPPP. A copy shall be provided to the department and VSMP authority, if requested. 3. Changes to authorization. If an authorization under Part III K 2 is no longer accurate because a different individual or position has responsibility for the overall operation of the construction activity, a new authorization satisfying the requirements of Part III K 2 shall be submitted to the VSMP authority as the administering entity for the board prior to or together with any reports or information to be signed by an authorized representative. 4. Certification. Any person signing a document under Part III K 1 or 2 shall make the following certification: "I certify under penalty of law that I have read and understand this document and that this document and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant Page 23 of 26 penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." L. Duty to comply. The operator shall comply with all conditions of this general permit. Any state permit noncompliance constitutes a violation of the Virginia Stormwater Management Act and the Clean Water Act, except that noncompliance with certain provisions of this general permit may constitute a violation of the Virginia Stormwater Management Act but not the Clean Water Act. Permit noncompliance is grounds for enforcement action; for state permit coverage, termination, revocation and reissuance, or modification; or denial of a state permit renewal application. The operator shall comply with effluent standards or prohibitions established under § 307(a) of the Clean Water Act for toxic pollutants within the time provided in the regulations that establish these standards or prohibitions or standards for sewage sludge use or disposal, even if this general permit has not yet been modified to incorporate the requirement. M. Duty to reapply. If the operator wishes to continue an activity regulated by this general permit after the expiration date of this general permit, the operator shall submit a new registration statement at least 60 days before the expiration date of the existing general permit, unless permission for a later date has been granted by the board. The board shall not grant permission for registration statements to be submitted later than the expiration date of the existing general permit. N. Effect of a state permit. This general permit does not convey any property rights in either real or personal property or any exclusive privileges, nor does it authorize any injury to private property or invasion of personal rights, or any infringement of federal, state or local law or regulations. O. State law. Nothing in this general permit shall be construed to preclude the institution of any legal action under, or relieve the operator from any responsibilities, liabilities, or penalties established pursuant to any other state law or regulation or under authority preserved by § 510 of the Clean Water Act. Except as provided in general permit conditions on "bypassing" (Part III U) and "upset' (Part III V), nothing in this general permit shall be construed to relieve the operator from civil and criminal penalties for noncompliance. P. Oil and hazardous substance liability. Nothing in this general permit shall be construed to preclude the institution of any legal action or relieve the operator from any responsibilities, liabilities, or penalties to which the operator is or may be subject under §§ 62.1-44.34:14 through 62.1-44.34:23 of the State Water Control Law or § 311 of the Clean Water Act. Q. Proper operation and maintenance. The operator shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances), which are installed or used by the operator to achieve compliance with the conditions of this general permit. Proper operation and maintenance also includes effective plant performance, adequate funding, adequate staffing, and adequate laboratory and process controls, including appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems, which are installed by the operator only when the operation is necessary to achieve compliance with the conditions of this general permit. R. Disposal of solids or sludges. Solids, sludges or other pollutants removed in the course of treatment or management of pollutants shall be disposed of in a manner so as to prevent any pollutant from such materials from entering surface waters and in compliance with all applicable state and federal laws and regulations. Page 24 of 26 S. Duty to mitigate. The operator shall take all steps to minimize or prevent any discharge in violation of this general permit that has a reasonable likelihood of adversely affecting human health or the environment. T. Need to halt or reduce activity not a defense. It shall not be a defense for an operator in an enforcement action that it would have been necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of this general permit. U. Bypass. 1. 'Bypass," as defined in 9VAC25-870-10, means the intentional diversion of waste streams from any portion of a treatment facility. The operator may allow any bypass to occur that does not cause effluent limitations to be exceeded, but only if it also is for essential maintenance to ensure efficient operation. These bypasses are not subject to the provisions of Part III U 2 and 3. 2. Notice. a. Anticipated bypass. If the operator knows in advance of the need for a bypass, the operator shall submit prior notice to the department, if possible at least 10 days before the date of the bypass. b. Unanticipated bypass. The operator shall submit notice of an unanticipated bypass as required in Part III I. 3. Prohibition of bypass. a. Except as provided in Part III U 1, bypass is prohibited, and the board or department may take enforcement action against an operator for bypass unless: (1) Bypass was unavoidable to prevent loss of life, personal injury, or severe property damage. Severe property damage means substantial physical damage to property, damage to the treatment facilities that causes them to become inoperable, or substantial and permanent loss of natural resources that can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused by delays in production; (2) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes, or maintenance during normal periods of equipment downtime. This condition is not satisfied if adequate back-up equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass that occurred during normal periods of equipment downtime or preventive maintenance; and (3) The operator submitted notices as required under Part III U 2. b. The department may approve an anticipated bypass, after considering its adverse effects, if the department determines that it will meet the three conditions listed in Part III U 3 a. Page 25 of 26 V. Upset. 1. An "upset," as defined in 9VAC25-870-10, means an exceptional incident in which there is unintentional and temporary noncompliance with technology -based state permit effluent limitations because of factors beyond the reasonable control of the operator. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation. 2. An upset constitutes an affirmative defense to an action brought for noncompliance with technology -based state permit effluent limitations if the requirements of Part III V 4 are met. A determination made during administrative review of claims that noncompliance was caused by upset, and before an action for noncompliance, is not a final administrative action subject to judicial review. 3. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventative maintenance, or careless or improper operation. 4. An operator who wishes to establish the affirmative defense of upset shall demonstrate, through properly signed, contemporaneous operating logs or other relevant evidence that: a. An upset occurred and that the operator can identify the cause of the upset; b. The permitted facility was at the time being properly operated; c. The operator submitted notice of the upset as required in Part III I; and d. The operator complied with any remedial measures required under Part III S. 5. In any enforcement proceeding, the operator seeking to establish the occurrence of an upset has the burden of proof. W. Inspection and entry. The operator shall allow the department as the board's designee, the VSMP authority, EPA, or an authorized representative of either entity (including an authorized contractor), upon presentation of credentials and other documents as may be required by law to: 1. Enter upon the operator's premises where a regulated facility or activity is located or conducted, or where records shall be kept under the conditions of this general permit; 2. Have access to and copy, at reasonable times, any records that shall be kept under the conditions of this general permit; 3. Inspect and photograph at reasonable times any facilities, equipment (including monitoring and control equipment), practices, or operations regulated or required under this general permit; and 4. Sample or monitor at reasonable times, for the purposes of ensuring state permit compliance or as otherwise authorized by the Clean Water Act or the Virginia Stormwater Management Act, any substances or parameters at any location. Page 26 of 26 For purposes of this section, the time for inspection shall be deemed reasonable during regular business hours, and whenever the facility is discharging. Nothing contained herein shall make an inspection unreasonable during an emergency. X. State permit actions. State permit coverage may be modified, revoked and reissued, or terminated for cause. The filing of a request by the operator for a state permit modification, revocation and reissuance, or termination, or a notification of planned changes or anticipated noncompliance does not stay any state permit condition. Y. Transfer of state permit coverage. 1. State permits are not transferable to any person except after notice to the department. Except as provided in Part III Y 2, a state permit may be transferred by the operator to a new operator only if the state permit has been modified or revoked and reissued, or a minor modification made, to identify the new operator and incorporate such other requirements as may be necessary under the Virginia Stormwater Management Act and the Clean Water Act. As an alternative to transfers under Part III Y 1, this state permit may be automatically transferred to a new operator if: a. The current operator notifies the department at least 30 days in advance of the proposed transfer of the title to the facility or property; b. The notice includes a written agreement between the existing and new operators containing a specific date for transfer of state permit responsibility, coverage, and liability between them; and c. The department does not notify the existing operator and the proposed new operator of its intent to modify or revoke and reissue the state permit. If this notice is not received, the transfer is effective on the date specified in the agreement mentioned in Part III Y 2 b. 3. For ongoing construction activity involving a change of operator, the new operator shall accept and maintain the existing SWPPP, or prepare and implement a new SWPPP prior to taking over operations at the site. Z. Severability. The provisions of this general permit are severable, and if any provision of this general permit or the application of any provision of this state permit to any circumstance, is held invalid, the application of such provision to other circumstances and the remainder of this general permit shall not be affected thereby. Section 12. Inspection logs Inspection template. Requirements are listed in 9VAC25-880-70, Part II, section B and F. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Stormwater Construction Site Inspection Report General Information Project Name NPDES Tracking No. Location Date of Inspection Start/End Time Inspector's Name(s) Inspector's Title(s) Inspector's Contact Information Inspector's Qualifications Insert qualifications or add reference to the SWPPP. (See Section 5 of the SWPPP Template) Describe present phase of construction Type of Inspection: ❑ Regular ❑ Pre -storm event ❑ During storm event ❑ Post -storm event Weather Information Has there been a storm event since the last inspection? ❑Yes ❑No Source of Data: If yes, provide: Storm Start Date & Time: Storm Duration (hrs): Approximate Amount of Precipitation (in): Weather at time of this inspection? ❑ Clear ❑Cloudy ❑ Rain ❑ Sleet ❑ Fog ❑ Snowing ❑ High Winds ❑ Other: Temperature: Have any discharges occurred since the last inspection? ❑Yes ❑No If yes, describe: Are there any discharges at the time of inspection? ❑Yes ❑No If yes, describe: Site -specific BMPs • Number the structural and non-structural BMPs identified in your SWPPP on your site map and list them below (add as many BMPs as necessary). Carry a copy of the numbered site map with you during your inspections. This list will ensure that you are inspecting all required BMPs at your site. • Describe corrective actions initiated date completed, and note the person that completed the work in the Corrective Action LoQ. BMP BMP Installed? BMP Maintenance Required? Corrective Action Needed and Notes Date Corrective Action Taken 1 ❑Yes ❑No ❑Yes ❑No 2 ❑Yes ❑No ❑Yes ❑No 3 ❑Yes ❑No ❑Yes ❑No 4 ❑Yes ❑No ❑Yes ❑No 5 ❑Yes ❑No ❑Yes ❑No 6 ❑Yes ❑No ❑Yes ❑No 7 ❑Yes ❑No ❑Yes ❑No 8 ❑Yes ❑No ❑Yes ❑No 9 ❑Yes ❑No ❑Yes ❑No EPA SWPPP Inspection Report, Version 1.1, September 17, 2007 BMP BMp Installed? BMP Maintenance Required? Corrective Action Needed and Notes Date Corrective Action Taken 10 ❑Yes ❑No ❑Yes ❑No 11 ❑Yes ❑No ❑Yes ❑No 12 ❑Yes ❑No ❑Yes ❑No 13 ❑Yes ❑No ❑Yes ❑No 14 ❑Yes ❑No ❑Yes ❑No 15 ❑Yes ❑No ❑Yes ❑No 16 ❑Yes ❑No ❑Yes ❑No 17 ❑Yes ❑No ❑Yes ❑No 18 ❑Yes ❑No ❑Yes ❑No 19 ❑Yes ❑No ❑Yes ❑No 20 ❑Yes ❑No ❑Yes ❑No Overall Site Issues Below are some general site issues that should be assessed during inspections. Customize this list as needed for conditions at your site. BMP/activity Implemented? Maintenance Corrective Action Needed and Notes Date Required? Corrective Action Taken I Are all slopes and ❑Yes ❑No ❑Yes ❑No disturbed areas not actively being worked properly stabilized? 2 Are natural resource ❑Yes ❑No ❑Yes ❑No areas (e.g., streams, wetlands, mature trees, etc.) protected with barriers or similar BMPs? 3 Are perimeter controls ❑Yes ❑No ❑Yes ❑No and sediment barriers adequately installed (keyed into substrate) and maintained? 4 Are discharge points and ❑Yes ❑No ❑Yes ❑No receiving waters free of any sediment deposits? 5 Are storm drain inlets ❑Yes ❑No ❑Yes ❑No properly protected? 6 Is the construction exit ❑Yes ❑No ❑Yes ❑No preventing sediment from being tracked into the street? 7 Is trashAitter from work ❑Yes ❑No ❑Yes ❑No EPA SWPPP Inspection Report, Version 1.1, September 17, 2007 2 BMP/activity Implemented? Maintenance Corrective Action Needed and Notes Date Required? Corrective Action Taken areas collected and placed in covered dumpsters? 8 Are washout facilities ❑Yes ❑No ❑Yes ❑No (e.g., paint, stucco, concrete) available, clearly marked, and maintained? 9 Are vehicle and ❑Yes ❑No ❑Yes ❑No equipment fueling, cleaning, and maintenance areas free of spills, leaks, or any other deleterious material? 10 Are materials that are ❑Yes ❑No ❑Yes ❑No potential storrnwater contaminants stored inside or under cover? 11 Are non-stormwater ❑Yes ❑No ❑Yes ❑No discharges (e.g., wash water, dewatering) properly controlled? 12 (Other) ❑Yes ❑No ❑Yes ❑No Describe any incidents of non-compliance not described above: CERTIFICATION STATEMENT "I certify under penalty of law that I have read and understand this document and that this document and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Print name and title: EPA SWPPP Inspection Report, Version 1.1, September 17, 2007 Signature: Date: EPA SWPPP Inspection Report, Version 1.1, September 17, 2007 Section 13. Additional Information Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Minimum Measure Construction Site Stormwater Runoff Control Subcategory Good Housekeeping/Materials Management Description of Concrete Washout at Construction Sites Concrete and its ingredients Concrete is a mixture of cement, water, and aggregate material. Portland cement is made by heating a mixture of limestone and clay containing oxides of calcium, aluminum, silicon and other metals in a kiln and then pulverizing the resulting clinker. The fine aggregate particles are usually sand. Coarse aggregate is generally gravel or crushed stone. When cement is mixed with water, a chemical reaction called hydration occurs, which produces glue that binds the aggregates together to make concrete. Concrete washout After concrete is poured at a construction site, the chutes of ready mixed concrete trucks and hoppers of concrete pump trucks must be washed out to remove the remaining concrete before it hardens. Equipment such as wheelbarrows and hand tools also need to be washed down. At the end of each work day, the drums of concrete trucks must be washed out. This is customarily done at the ready mixed batch plants, which are usually off -site facilities, however large or rural construction projects may have on -site batch plants. Cementitious (having the properties of cement) washwater and solids also come from using such construction materials as mortar, plaster, stucco, and grout. Environmental and Human Health I Concrete washout water (or washwater) is a slurry containing toxic metals. It's also caustic and corrosive, having a pH near 12. In comparison, Drano liquid drain cleaner has a pH of 13.5. Caustic washwater can harm fish gills and eyes and interfere with reproduction. The safe pH ranges for aquatic life habitats are 6.5 — 9 for freshwater and 6.5 — 8.5 for saltwater. Construction workers should handle wet concrete and washout water with care because it may cause skin irritation and eye damage. If the washwater is dumped on the ground (Fig. 1), it can run off the construction site to adjoining roads and enter roadside storm drains, which discharge to surface waters such as rivers, lakes, or estuaries. The red arrow in Figure 2 points to a ready mixed truck chute that's being washed out into a roll -off bin, which isn't watertight. Leaking washwater, shown in the foreground, will likely follow similar Figure 1. Chute washwater being dumped on the ground Figure 2. Chute washwater leaking from a roll -off bin being used as a washout container paths to nearby surface waters. Rainfall may cause concrete washout containers that are uncovered to overflow and also transport the washwater to surface waters. Rainwater polluted with concrete washwater can percolate down through the soil and alter the soil chemistry, inhibit plant growth, and contaminate the groundwater. Its high pH can increase the toxicity of other substances in the surface waters and soils. Figures 1 and 2 illustrate the need for better washout management practices. Best Management Practice Objectives The best management practice objectives for concrete washout are to (a) collect and retain all the concrete washout water and solids in leak proof containers, so that this caustic material does not reach the soil surface and then migrate to surface waters or into the ground water, and (b) recycle 100 percent of the collected concrete washout water and solids. Another objective is to support the diversion of recyclable materials from contacted to inquire landfills. Table 1 shows how concrete washout materials can be recycled and reused. Table 1— Recycling concrete washout materials Concrete Washout Materials 3 c o, N E2 Uses of Recycled Materials 3 Reused to washout additional mixer truck chutes or drums x Reused as a ready mixed concrete ingredient x x" x x Reused as an ingredient of precast concrete products, e.g., highway x x x x x barriers, retaining wall blocks, riprap Reused as crushed concrete products, e.g., road base or fill x x x x Reused to pave the yards of ready mixed concrete plants x Returned back to a surface water, e.g., river, lake, or estuary xc a. Fine particles of cementitious material (e.g., Portland cement, slag cement, fly ash, silica fume) b. Recyclable, if allowed by the concrete quality specifications c. Treated to reduce the pH and remove metals, so it can be delivered to a municipal wastewater treatment plant, where it is treated further and then returned to a natural surface water Washwater recycling, treatment, disposal Washwater from concrete truck chutes, hand mixers, or other equipment can be passed through a system of weirs or filters to remove solids and then be reused to wash down more chutes and equipment at the construction site or as an ingredient for making additional concrete. A three chamber washout filter is shown in Figure 3. The first stage collects the coarse aggregate. The middle stage filters out the small grit and sand. The third stage has an array of tablets that filter Figure 3. Concrete washout filter out fines and reduces the pH. The filtered washwater is then discharged through a filter sock. An alternative is to pump the washout water out of the washout container (Fig 4) and treat the washwater off site to remove metals and reduce its pH, so it can be delivered to a publicly owned treatment works (POTW), also known as a municipal wastewater treatment plant, which provides additional treatment allowing the washwater to be discharged to a surface water. The POTW should be about any pretreatment requirements, i.e., the National Pretreatment Standards for Prohibited Dischargers (40CFR 403.5) before discharging the washwater to the POTW. The washwater can also be retained in the washout container and allowed to Figure 4. Vacuuming washwater out of a washout container for treatment and reuse evaporate, leaving only the hardened cementitious solids to be recycled. Solids recycling The course aggregate materials that are washed off concrete truck chutes into a washout container can be either separated by a screen and placed in aggregate bins to be reused at the construction site or returned to the ready mixed plant and washed into a reclaimer (Fig. 5). When washed out into a reclaimer, the fine and course aggregates are separated out and placed in different piles or bins to be reused in making fresh concrete. Reclaimers with settling tanks separate cement fines from the washwater, and these fines can also be used in new concrete unless prohibited by the user's concrete quality specifications. Figure 5. Ready mixed truck washing out into a reclaimer Hardened concrete recycling When the washwater in a construction site concrete washout container has been removed or allowed to evaporate, the hardened concrete that remains can be crushed (Fig. 6) and reused as a construction material. It makes an excellent aggregate for road base and can be used as fill at the Figure 6. Crushed concrete stockpile and crusher construction site or delivered to a recycler. Concrete recyclers can be found at municipal solid waste disposal facilities, private recycling plants, or large construction sites. Wet concrete recycling Builders often order a little more ready mixed concrete than they actually need, so it is common for concrete trucks to have wet concrete remaining in their drum after a delivery. This unused concrete can be returned to the ready mixed plant and either (1) used to pour precast concrete products (e.g., highway barriers, retaining wall blocks, riprap), (2) used to pave the ready mixed plant's yard, (3) washed into a reclaimer, or (4) dumped on an impervious surface and allowed to harden, so it can be crushed and recycled as aggregate. Unused wet concrete should not be dumped on bare ground to harden at construction sites because this can contribute to ground water and surface water contamination. Washout Containers Different types of washout containers are available for collecting, retaining, and recycling the washwater and solids from washing down mixed truck chutes and pump truck hoppers at construction sites. Chute washout box A chute washout box is mounted on the back of the ready mixed truck. If the truck has three chutes, the following procedure is used to perform the washout from the top down: (1) after the pour is completed, the driver attaches the extension chute to the washout box, (2) the driver then rotates the main chute over the extension chute (Fig. 7) and washes down the hopper first then the main chute, (3) finally the driver washes down the flop down chute and last the extension chute hanging on the box. All washwater and solids are captured in the box. Figure 7. Chute washout box After the wash down, washwater and solids are returned to the ready mixed plant for recycling. A filter basket near the top of the washout box separates out the coarse aggregates so they can be placed in a bin for reuse either at the construction site or back at the cement plant. Chute washout bucket and pump After delivering ready mixed concrete and scraping the last of the customer's concrete down the chute, the driver hangs a washout bucket shown in Figure 8 (see red arrow) on the end of the truck's chute and secures the hose to insure no leaks. The driver then washes down the chute into the bucket to remove any cementitious material before it hardens. After washing out the chute, the driver pumps (yellow arrow points to the pump) the washwater, sand, and other fine solids from the bucket up into the truck's drum to be returned to the Figure 8. Chute washout bucket and PUMP ready mixed plant, where it can be washed into a reclaimer. A removable screen at the bottom of the washout bucket prevents course aggregate from entering the pump. This course aggregate can also be returned to the plant and added to the coarse aggregate pile to be reused. All the materials are recycled. Hay bale and plastic washout pit A washout pit made with hay bales and a plastic lining is shown in Figure 9. Such pits can be dug into the ground or built above grade. The plastic lining should be free of tears or holes that would allow the washwater to escape (Fig. 10). After the pit is used to wash down the chutes of multiple ready mixed trucks and the washwater has evaporated or has been vacuumed off, the remaining hardened solids can be broken up and removed from the pit. This process may damage the hay bales and plastic lining. If damage occurs, the pit will need to be repaired and relined with new plastic. When the hardened solids are removed, they may be bound up with the plastic lining and have to be sent to a landfill, rather than recycled. Recyclers usually accept only unmixed material. If the pit is going to be emptied and repaired more than a few times, the hay bales and plastic will be generating additional solid waste. Ready mixed concrete bale and plastic Figure 10. Leaking washout pit that has not been well maintained trucks can use hay bale washout pits, but concrete pump trucks have a low hanging hopper in the back that may prevent their being washed out into bale -lined pits. Vinyl washout container _ The vinyl washout container (Fig. 11) is portable, reusable, and easier to install than a { hay bale washout pit. Figure 11. Vinyl washoutpit with rilterbag The biodegradable filter bag (Fig. 12) assists in extracting the concrete solids and prolongs the life of the vinyl container. When the bag is lifted, the water is filtered out and the remaining concrete solids and the bag can be disposed of together in a landfill, or the hardened concrete can be delivered to a recycler. After the solids have been removed several times and the container is full of washwater, the washwater can be allowed to evaporate, so the container can be reused. The washwater can be removed more quickly by placing another filter bag in the container and spreading water gelling granules evenly across the water. In about five minutes, the water in the filter bag will turn into a gel that can be removed with the bag. Then the gel and filter bag can be disposed to together. Metal washout container Figure 12. Extracting the concrete solids or gelled washwater The metal roll -off bin (Fig. 13) is designed to securely contain concrete washwater and solids and is portable and reusable. It also has a ramp that allows concrete pump trucks to wash out their hoppers (Fig. 14). Roll -off providers offer recycling services, such as, picking up the roll -off bins after the washwater has evaporated and the solids have hardened, replacing them with empty washout bins, and delivering the hardened concrete to a recycler (Fig. 15), rather than a landfill. Some providers will vacuum off the washwater, treat it to remove metals and reduce the pH, deliver it to a wastewater treatment plant for additional treatment and Figure 13. Mixer truck being washed out into a roll -off bin subsequent discharge to a surface water. Everything is recycled or treated sufficiently to be returned to a natural surface water. imp truck using the out into a roll -off bin Figure 15. Delivering hardened Concrete to a recycler Another metal, portable, washout container, which has a rain cover to prevent overflowing, is shown in Figure 16. It is accompanied by an onsite washwater treatment unit, which reduces the pH and uses a forced weir tank system to remove the coarse aggregate, fine aggregate, and cement fines. The washwater can then be reused at the construction site to wash out other mixer truck chutes and equipment. Figure 16. Washout container with a rain cover and The solids are onsite washwater treatment allowed to harden together and can be taken to a concrete recycler (Fig. 17) to be crushed and used as road base or aggregate for making precast products, such as retaining wall blocks. All Figure 17. Delivering hardened concrete materials are recycled. to a recycler Sitinq Washout Facilities Concrete washout facilities, such as washout pits and vinyl or metal washout containers, should be placed in locations that provide convenient access to concrete trucks, preferably near the area where concrete is being poured. However they 4 should not be placed within 50 feet of storm drains, open ditches, or waterbodies. Appropriate gravel or rock should cover approaches to concrete washout facilities when they are located on undeveloped property. On large sites with extensive concrete work, washouts should be placed at multiple locations for ease of use by ready mixed truck drivers. If the washout Reference NRMCA 2009. Environmental Management in the Ready Mixed Concrete Industry. 2PEMRM. 1st edition. By Gary M. Mullins. Silver Springs, MD: National Ready Mixed Concrete Association. facility is not within view from the pour location, signage will be needed to direct the truck drivers. Websites and Videos Construction Materials Recycling Association Operating and Inspecting Washout www.concreterecycling.org Facilities Concrete washout facilities should be inspected daily and after heavy rains to check for leaks, identify any plastic linings and sidewalls have been damaged by construction activities, and determine whether they have been filled to over 75 percent capacity. When the washout container is filled to over 75 percent of its capacity, the washwater should be vacuumed off or allowed to evaporate to avoid overflows. Then when the remaining cementitious solids have hardened, they should be removed and recycled. Damages to the container should be repaired promptly. Before heavy rains, the washout container's liquid level should be lowered or the container should be covered to avoid an overflow during the rain storm. Educating Concrete Subcontractors The construction site superintendent should make ready mixed truck drivers aware of washout facility locations and be watchful for improper dumping of cementitious material. In addition, concrete washout requirements should be included in contracts with concrete delivery companies. National Ready Mixed Concrete Association www.nrmca.org National Ready Mixed Concrete Research and Education Foundation www.rmc-foundation.org Additional information and videos on concrete washout containers and systems can be found by a web search for "concrete washout." Photograph Credits Figures 1, 2. Mark Jenkins, Concrete Washout Systems, Inc. Figure 3. Mark Shaw, Ultra Tech International, Inc. Figure 4. Mark Jenkins, Concrete Washout Systems, Inc. Figure 5. Christopher Crouch, CC/ Consulting Figure 6. William Turley, Construction Materials Recycling Association Figure 7. Brad Burke, Innovative Concrete Solutions, LLC Figure S. Ron Lankester, Enviroguard Figures 9, 10. Mark Jenkins, Concrete Washout Systems, Inc. Figures 11, 12. Tom Card, RTC Supply Figures 13, 14, 15. Mark Jenkins, Concrete Washout Systems, Inc. Figures 16, 17. Rick Abney Sr, Waste Crete Systems, LLP Disclaimer Please note that EPA has provided external links because they provide additional information that maybe useful or interesting. EPA cannot attest to the accuracy of non -EPA information provided by these third -party websites and does not endorse any non -government organizations or their products or services. Pollution Prevention Training Log Date Parties in Attendance Pollution Prevention Items Discussed Procedure for Spills of Non -Reportable Quantities Most spills can be cleaned up following manufacturer specifications. Absorbent/oil dry, sealable containers, plastic bag and shovels/brooms are suggested minimum spill response items that should be available at this location. 1) Check for hazards (flammable material, noxious fumes, cause of spill)- if flammable liquid, turn off engines and nearby electrical equipment. If serious hazards are present, leave the area and call 911. 2) Make sure the spill area is safe to enter and that it does not pose an immediate threat to health or safety of any person. 3) Stop the spill source. 4) Call co-workers and supervisor for assistance and to make them aware of the spill and potential dangers. 5) If possible, stop spill from entering drains (use absorbent or other material as necessary) 6) Stop spill from spreading (use absorbent or other material) 7) If spill material has entered a storm sewer; contact locality's storm sewer water department and locality's VSMP inspector. 8) Cleanup spilled material and do not flush area with water. 9) Properly dispose of cleaning materials and used absorbent material according to manufacturer specifications. Spill Report Form Project Type and Location: Date/Time of Spill: Time Incident Contained Spill Location and Events leading to Spill: Material Spilled: Source of Spill: Amount Spilled: Amount Spilled to Waterway Surface Area of Impacted Media in Sq. ft.: Type of Media (Soil or Pavement): Corrective Action Taken: Action Taken to Prevent Future Spills: Agencies Notified: Modifications of Storm Water Pollution Prevention Plan: I certify under penalty of law that I have read and understand this document and that this document and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Print Name/Title of Reporter: Signature: Date: Company: