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HomeMy WebLinkAboutWPO202100010 VSMP - SWPPP 2021-02-17BELVEDERE BLOCK 10 STORMWATER POLLUTION PREVENTION PLAN And POLLUTION PREVENTION PLAN ALBEMARLE COUNTY FEBRUARY 15, 2021 Project Name: BELVEDERE BLOCK10 Owner/Operator: NEW BELVEDERE INC. Steven C. Krohn 610 West Rio Road Charlottesville, VA 22901 434-242-6122 Project Location: Latitude 38.076143 Longitude-78.452682 Located in the Belvedere Subdivision, Off to the Northeast of Farrow Dr. County of Albemarle, Virginia (See USGS General Location Maps on following pages) Description: (Purpose and Type of Soil Disturbing Activities) The project consists of the construction of 40 attached townhouse units and 28 single family detached units, plus 2 existing single family detached units. Soil disturbing activities will include: installing erosion and sediment control devices, grading, fine excavation for construction of buildings and road infrastructure and preparation for final stabilization and seeding. No industrial activities are proposed for this site. Project Start Date: March 1, 2021 Anticipated Project Completion Date: May 31, 2024 CONTENTS PAGE General Location Maps....................................................................... 4-6 ContactInformation........................................................................... 7 General Site Information....................................................................... 8 Sequence of Major Activities................................................................ 8-9 Name of Receiving Waters................................................................... 9 Special Conditions Related to TMDLs..................................................... 10 Historic Districts............................................................................... 10 Endangered and Threatened Species and Critical Habitat Protection .................... 10-11 Erosion and Sediment Controls and Stabilization Practices ............................. 11-14 Structural Practices............................................................................ 14 Vegetative Practices........................................................................... 14 Stormwater Management..................................................................... 15 WasteMaterials................................................................................ 15 HazardousWaste.............................................................................. 15 SanitaryWaste................................................................................. 15 Offsite Vehicle Tracking..................................................................... 15 Timing of Controls and Measures........................................................... 15 Certification of Compliance with Federal, State and Local Requirements............ 15 Maintenance and Inspection Procedures ................................................... 16 Recordkeeping................................................................................. 17 I. Corrective Action and Forms ..................................................... 17 II. Grading and Stabilization Activities Log ...................................... 17 III. Log of Changes to the SWPPP................................................. 17 Comprehensive Site Compliance Evaluation- Post Construction ....................... 17 Non-Stormwater Discharges................................................................. 18 Pollution Prevention Plan .................................................................... 18-21 I. Inventory for Pollution Prevention Plan ........................................ 18-19 II. Material Management Practices ................................................ 19-20 III. Hazardous Products.............................................................. 20 IV. Product Specific Practices...................................................... 20-22 V. Spills and Leaks................................................................... 22 VI. Spill Control Practices.......................................................... 22-23 VII. Spill Procedure.................................................................. 23 Pollution Prevention Certification........................................................... 24 2 Appendices..................................................................................... 25 Appx A- Site Maps/Construction Plans (including ESC, PPP & SWM) Appx 13- Copy of Construction General Permit Appx C- VSMP Registration Statement and Notice of Coverage Appx D- Delegation of Authority Appx E- Inspection Reports Appx F- Grading and Stabilization Log Appx G- Log of Changes and Update to SWPPP Appx H- Contractor/Subcontractor Certification and Agreements Appx I- Factsheets, Additional Information, Spill Reports Y y y o m x c � Woodbrook z p i 3 c; a Berkmdr', Albemarle Square ° r �✓ i // / Ralntree 30�0 2vmP \ Charlottesville zv t Fashion Squar�C. Squire Hill a-b hillzdate pr Nor Branchland ene Chapel Hills a>> i 'V 69,a Wakefield � S` Westmoreland 0r°"�" ��i- �6e\dFtd Fieldbrook Raintree� Northfields 4 f C o irk I � Dunlora Plantation 6 3 o m tQ Greenbriar Heights E*Q\ USGS GENERAL TERRAIN MAP TOPO OF BELVEDERE BLOCK 10- ALBEMARLE COUNTY, VIRGINIA MAP PROVIDED BY https://ngmdb.usgs.gov/topoview/viewer/#4/39.98/-100.02 �t°wer M F 150T I efi) u 9 USGS GENERAL LOCATION MAP TOPO OF BELVEDERE BLOCK 10- ALBEMARLE COUNTY, VIRGINIA MAP PROVIDED BY https://ngtndb.usgs.gov/topoview/viewer/44/39.98/-100.02 N 4 S r� Q B 1,10 �P • _ 0 y A i O P p p \� OPO O ir Z �f:J O p NpP a.• + 4 0� P d tE i i 1+ APO ♦ O 'Q� p < t�P 10 PQ p .. OLD g pO4- J2 w P hP w 2pv 1 300M 1000ft r NIL(SOR 1' OP gCE Oa y�.. aD PQ Ilk G� e` PP FP T� • O O J f Lat 38° 4' 29" N Long: 78° 28' 56" W QA Op & DD A MGR UTM Scale 1:18,056 MaD Records: 0 Qa O F LO`14 ` * T Contact Information Project TBD Construction Manager: RLD: TBD Responsible for construction and final stabilization of facility. Project Roudabush, Gale & Associates, Inc. Designer: Riki Van-Niekerk 999 2"d St. Se. Suite 201 Charlottesville, VA 22902 434-977-0205 riki@roudabush.com Responsible for site plan, erosion control and stormwater management plan preparation and design. SWPPP Roudabush, Gale, & Associates Preparer and 999 2"d St. SE Suite 201 Contact: Charlottesville, Virginia 22902 434-977-0205 Responsible for preparation of the SWPPP/PPP and inspections. Pollution Prevention Team: The pollution prevention team is responsible for assisting the facility in developing, implementing, maintaining, and revising the facility's SWPPP. Below are the qualified personnel for the site. Jim Taggart Licensed Professional Engineer, No.22841 Riki Van-Niekerk FIT Nicole Jamison B.S. Natural Resource Management, RLD05933 & DIN1114 Alease Shiflett RLD12733 Kent Rame RLD16152 To contact any member of the Pollution Prevention Team, call Roudabush, Gale, and Associates at 434-977-0205 SWPPP Availability: The Stormwater Pollution Prevention Plan, a copy of the VPDES permit, construction plans, and other materials referenced in this plan shall be retained at the project location. The SWPPP can be found at the intersection of Farrow Dr. and Fowler St. Contact Roudabush, Gale, and Associates at 434-977-0205 with questions. General Site Information Purpose: The first stage of construction of Belvedere Block 10 proposed the construction of 40 attached townhouse units and 28 single family detached units (plus 2 existing single family detached units). Total disturbed area is 19.56 acres. Runoff Coefficient: The final coefficient of runoff is provided in the "Stormwater Management Plan" included in this SWPPP in Appendix A. Site Area: The total permitted site area is 93.61 acres and the estimated area to be disturbed is 19.56 acres. Site Map: A site map/vicinity map is provided on pages 4-6. Description of The site consists of moderate tree cover with virgin soil terrain. The property is bounded Existing site cond.: by South Fork Rivanna River to the east, Belvedere Phase 5 to the south west, Belvedere Phase 2B to the west and Dunlora Farm to the southwest and southeast. Steep slopes (preserved) and Steep slopes (managed) per Albemarle County GIS does exist on the north east side of the site. The areas where construction activities occur near preserved steep slopes, tree protection and silt fence will be installed as a protective barrier, as to not disturb the slopes. Adjacent Areas: Belvedere Phase 5 and Phase 2B lie to the west/southwest and Dunlora Farm lies to the southwest and southeast. Offsite Land This project plans to utilize stockpiles found within Belvedere's Phase IIB permit Disturbance: VAR10K606, WP0201600071. Stockpiles located above Cornelius Alley. Seauence of Maior Activities: Phase 1 1.1 Install the construction entrance at site entrance off of Fowler Street. Should the temporary construction entrance not be maintained properly or an excessive amount of soil be tracked onto the public roadway, then a paved construction entrance, water tanker truck with two pressure washers, and settling area may be required by the Erosion and Sediment Control Program Administrator. 1.2 Place silt fence, tree protection, and other perimeter controls. Clearing and grubbing shall first be limited to that necessary to install the perimeter controls. 1.3 Install sediment traps 1 through 7. Provide stabilization measures to all traps. 1.4 Contractor to construct diversion dikes to direct runoff to the sediment traps. Contractor to ensure a positive slope is maintained. Berm shall be stabilized as a first step in disturbance. 1.5 Once all the Phase 1 controls are installed, and prior to additional clearing and grubbing, the contractor shall coordinate inspections, as required by the County of Albemarle. 1.6 Clear and grub the remainder of the project area. The land disturbance shall be restricted to the limits of disturbance shown in the approve Erosion Control Plans. Phase 2 2.1 Strip topsoil and stockpile within an area on the property at a location approved by Albemarle County Community Development. Install silt fence at the perimeter of the stockpile(s). 2.2 Construction of the walls may begin. Muck out, fill, and close sediment traps that interfere with wall construction and divert water to a neighboring sediment trap. Relocate sediment trap 1, sediment trap 4, and sediment trap 7. 2.3 Contractor to bring site up to grade as shown on the phase 2 Erosion and Sediment Control Plan. Construction road stabilization may be required. 2.4 Permanent soil stabilization shall be applied to all 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 a final grade but will remain dormant for longer than 30 days. Permanent stabilization shall be applied to areas that are to be left dormant for more than one year. Lime, fertilize, and apply temporary or permanent seeding to all denuded areas immediately after achieving final grade. All permanent slopes steeper than 3:1 shall receive stabilization with landscaping vegetation hardier than grass, which will not require mowing. Phase 3 3.1 Contractor to begin construction on all utilities. All inlets must be protected by inlet protection as shown on sheet 14 of the ESC plans 3.2 Fine grade and install curbing, roads, and lots. Muck out, fill, and close traps once water is flowing to the inlets and through the stormwater pipes. Sediment trap 4 to remain until phase 4. Phase 4 4.1 Spread topsoil and add permanent seeding to disturbed area. 4.2 After site is stabilized and permission is obtained from the Erosion control inspector, remove silt fencing and other remaining erosion control measures if deemed appropriate by Albemarle County. 4.3 Demobilize. Name of Receiving Waters: Rivanna River -Meadow Creek (JR14 (HUCO20802040401)) South Fork Rivanna River (JR08 (HUCO20802040203)) 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 II.A.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 management 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 storm 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. Special Conditions Related to TNIDLs: For additional information on TMDLs please visit: 1) https://www.albemarle.or"load/images/forms center/departments/Water Resources/forms/Albemarle _County Local _TMDL_Action _Plan _2016.pdf 2) https://www.albemarle.or"load/images/forms center/departments/Water Resources/forms/Albemarle Chesapeake Bay TMDL Action Plan.pdf 3) https://www.albemarle.orgLupload/images/forms_center/departments/Water_Resources/forms/Existing_ and New_Sources.pdf Historic Districts ao pa a,o\aFM1e\a f ss ry' (�)/� fle04W a e.\ The image (above) is compiled from information obtained from the Virginia Department of Historic Resources (DHR) and Albemarle County GIS. Properties that are located within historic districts may be subject to certain development restrictions which can be found at: http://www.dhr.virginia.gov/. Green shaded regions depict the known historic districts that exist within Albemarle County near the Belvedere Subdivision. There are no known historic districts located within the Belvedere Block 10 limits of disturbance at this time (outlined in yellow above). Endan¢ered and Threatened Species and Critical Habitat Protection The United States Fish & Wildlife Service has identified species that are believed to or known to occur in Virginia. The list can be found on their Environmental Conservation Online System at: 4 10 http://ecos.fws. og v/ecp0/reports/species-listed-by-state-report?state=VA&status=listed There are no known endangered or threatened species located within the Belvedere Block 10 limits of disturbance at this time. Erosion and Sediment Controls and Stabilization Practices: Approved erosion and sediment control plans for Belvedere Block 10 are incorporated by reference as part of this Stormwater Pollution Prevention Plan. Approved plans are included in this SWPPP binder- see appendix A. 1. The purpose of the erosion control measures shown on these plans shall be to preclude the transport of all waterborne sediments resulting from construction activities from entering onto adjacent properties of state waters. If field inspection reveals the inadequacy of the plan to confine sediment to the project site, appropriate modifications will be made to correct any plan deficiencies. In addition to these notes, all provisions of the Virginia Erosion and Sediment Control Regulations shall apply to this project. 2. All erosion and sediment control measures shall be installed and maintained in accordance with the Virginia Erosion and sediment Control Handbook (3`d Edition, 1992) and Virginia Regulations 9VAC25-840 Erosion and Sediment control Regulations. The contractor shall be thoroughly familiar with all applicable measures contained therein which may be pertinent to this project. Where construction vehicle access routes intersect paved 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 public road surface, the road 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 subdivision lots as well as to larger land -disturbing activities. 4. A copy of the approved erosion and sediment control plan shall be maintained on the site at all times. 5. Sediment basins and traps, perimeter dikes, sediment barriers, and other measures intended to trap sediment onsite must be constructed as a first step in grading and be made functional before upslope land disturbance takes place. Earthen structures such as dams, dikes, and diversions must be seeded and mulched immediately after installation. Periodic inspections of the erosion control measures shall be made to assess their condition. Any necessary maintenance of the measures shall be accomplished immediately upon notification by the SWPPP Inspector and shall include the repair of measures damaged by any subcontractor including those of the public utility companies. 6. The contractor is responsible for installation of any additional erosion control measures necessary to prevent erosion and sedimentation as determined by the plan approving authority. 11 7. All disturbed areas are to drain to approved sediment control measures at all times during all land disturbing activities and during site development until final stabilization is achieved. 8. Sediment control measures may require minor field adjustments at time of construction to insure their intended purpose is accomplished. Division of code compliance approval will be required for other deviations from the approved plans. 9. 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 measure until the problem is corrected. Concentrated runoff shall not flow down cut or fill slopes unless contained within an adequate temporary or permanent channel, flume or slope drain structure. 10. Whenever water seeps from a slope face, adequate drainage or other protection shall be provided. Contractor to notify engineer and county erosion control inspector. 11. During dewatering operations, water will be pumped into an approved filtering device. 12. The contractor shall place soil stockpiles at the locations shown on the SWPPP plan sheet for each area of construction, or as directed by design engineer. Soil stockpiles shall be stabilized or protected with sediment trapping measures immediately. Offsite waste or borrow areas shall be approved by the division of code compliance prior to the import of any borrow or export of any waste to or from the project. 13. Prior to commencing land disturbing activities in areas other than indicated on these plans (including, but not limited to, offsite borrow or waste areas), the contractor shall submit a supplementary erosion control plan to the owner for review and approval by the plan approving authority. 14. Permanent or temporary soil stabilization must be applied to all denuded areas within 7 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. Soil stabilization measures include vegetative establishment, mulching and the early application of gravel base material on areas to be paved. Contractor shall establish a stabilized site and not allow any sediment to exit the project limits. 15. Soil stabilization refers to measures which protect soil from erosive forces of raindrop impact and flowing water. Applicable practices include vegetative establishment, mulching and the early application of gravel base on areas to be paved. Soil stabilization measures should be selected to be appropriate for the time of year, site conditions and estimated duration of use. 16. When work in a live watercourse is to be performed, precautions shall be taken to minimize encroachment, control sediment transport and stabilize the work area to the greatest extent possible 12 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. Contractor shall follow the VESCH Chapter 3.25 Utility Stream Crossing requirements for the two intermittent stream crossing. 17. When a live water course 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. 18. All applicable federal, state and local requirements pertaining to working in or crossing live water courses shall be met. 19. The bed and banks of a watercourse shall be stabilized immediately after work in the watercourse is completed. 20. Underground utility lines shall be installed in accordance with the following standards in addition to other applicable criteria: a. No more than 500 linear feet of trench may be opened at one time. b. Excavated material shall be placed on the uphill side of trenches. c. Effluent 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 standards and specifications of the Virginia Erosion and Sediment Control Handbook f. Applicable safety requirements shall be complied with. 21. If disturbed area stabilization is to be accomplished during the months of November, December, January or February, stabilization shall be accomplished by permanently seeding the area with a seeding mixture that includes the seasonal nurse crop for the Piedmont area, which is Winter Rye. See Table 3.32-D for a list of site specific seeding mixtures for the Piedmont area. This is in accordance with Specification 3.32 from the Virginia Erosion and Sediment Control Handbook (VESCH). The seeding area will also need to be mulched in order to assist the growth of the seeding in the winter months (Specification 3.35 of the VESCH). For temporary seeding stabilization during these months, a 50150 mix of annual ryegrass and winter ryegrass, as well as a mulching cover should be put down according to Specification 3.31 of the VESCH, Table 3.31-B. 22. The term seeding, final vegetative cover or stabilization, on this plan shall mean the successful germination and establishment of a stable grass cover from a properly prepared seedbed containing the specified amounts of seed, lime, and fertilizing in accordance with Specification 3.32, permanent seeding. Permanent vegetative cover shall not be considered established until a ground cover is achieved that is uniform, mature enough to survive and will inhibit erosion. 13 23. Inlet protection in accordance with Specification 3.07 shall be provided for all storm drain inlets that are made operable during construction so that sediment -laden water cannot enter the conveyance system without first being filtered or otherwise treated to remove sediment. 24. 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. 25. 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 local program administrator. Trapped sediment and disturbed soil areas resulting from the disposition of temporary measures shall be permanently stabilized to prevent further erosion and sedimentation. 26. If Applicable- As -built drawings must be provided for all detentionBMP facilities. Also upon completion, the construction of all detentionBMP facilities shall be certified by a professional engineer who inspected the structure during construction. The certification shall state that to the best of his/her judgment, knowledge, and belief, the structure was constructed in accordance with the approval plans and specifications. Structural Practices: The following erosion and sediment control structural practices will be incorporated on the project site: 1. Safety Fence (3.01) 2. Construction Entrance (3.02) 3. Road Stabilization (3.03) 4. Silt Fence/ Super Silt Fence (3.05) 5. Temporary Diversion Dikes (3.09) 6. Diversion Ditch (3.12) 7. Sediment Traps (3.13) 8. Sediment Basins (3.14) 9. Riprap (3.19) 10. Outlet Protection (3.18) 11. Inlet Protection (3.07) Vegetative Practices: 1. Dust Control (3.39) 2. Surface Roughening (3.29) 3. Top soiling/Stockpiling (3.30) 4. Permanent/Temporary Seeding (3.31 & 3.32) 5. Mulch (3.35) 6. Erosion Control Blankets (3.36) 7. Tree Protection (3.38) 14 Stormwater Management: Stormwater runoff collected within the block 10 project will be conveyed through a manmade conveyance network to an outfall at the Rivanna River. The non -erosive passage of the 2-year event will discharge at the normal river elevation of the Rivanna River, an adequate channel at or below the 1 % rule limit. This determination is documented in a submittal to Albemarle County (02/11/2021) and placed in the Additional Information appendix. The water quality portions of this plan will be satisfied with purchasing 13.31 lb/yr of offsite nutrient credits in the same of adjacent hydrologic unit code (02080204). Compliance of 9VAC25-870- 65F: offsite alternative law 9VAC25-870-69 purchase of nutrient offset credits is proposed and affirmed. Waste Materials: All waste materials will be collected and stored in a proper receptacle in accordance with all local and State solid waste management regulations. All trash and construction debris from the site will be deposited in dumpsters. The trash will be hauled to an appropriate waste disposal site. No construction waste materials will be buried onsite. All project personnel will be instructed regarding the correct procedure for waste disposal. Hazardous Waste: All hazardous waste materials will be disposed of in the manner specified by the manufacturer and as required by local or State regulation. Site personnel will be instructed in these practices. Sanitary Waste: All sanitary waste will be collected in the portable units as required by local and State regulation. Offsite Vehicle Trackin¢: Stabilized construction entrances will be provided to help reduce vehicle tracking of sediments. The paved street adjacent to the site entrance will be swept as needed to remove any excess mud, dirt or rock tracked from the site. Dump trucks hauling material from the construction site will be covered with a tarpaulin. Timin¢ of Controls and Measures: As indicated in the Stabilization Practices, permanent or temporary soil stabilization must be applied to all denuded areas within 7 days after final grade is reached on any portion of the site. Soil stabilization must also be applied to denuded areas which may not be a final grade but will remain dormant (undisturbed) for longer than 14 days. Soil stabilization measures include vegetative establishment, mulching and the early application of gravel base material on areas to be paved. Certification of Compliance with Federal, State and Local Requirements: The Stormwater Pollution Prevention Plan reflects State requirements for stormwater management and erosion and sediment control, as established in the Virginia Stormwater Management Handbook and Virginia Erosion and Sediment Control Manual. 15 Maintenance and Inspection Procedures: Inspections of the construction site shall be made by the SWPPP Inspector, Nicole Jamison or Kent Raine, or by other qualified members of the Pollution Prevention Team (Jim Taggart and Riki Van-Niekerk). Erosion and sediment control measures identified in the plan shall be observed to ensure that they are still operating correctly. The contractor shall inspect all erosion control measures at least once every 4 or 5 business days and after each significant rainfall producing event. Any necessary repairs or cleanup to maintain the effectiveness of the erosion control devices shall be made within seven (7) days. Inspections shall be conducted (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 storm event occurs when there are more than 24 hours between business days, the inspection shall be conducted on the next business day. These inspections shall cover disturbed areas that have not been finally stabilized, areas used for storage of materials that are exposed to precipitation, structural control measures, and locations where vehicles enter or exit the site. Where areas have been finally or temporarily stabilized or runoff is unlikely due to winter conditions (e.g. site is covered with snow, ice or frozen ground exists) such inspections shall be conducted at least once every month. If weather conditions (such as above freezing temperatures or rain/snow events) make discharges likely, the operator shall immediately resume the regular inspection frequency. Reports summarizing each inspection shall be retained onsite as part of this Stormwater Pollution Prevention Plan. 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 location(s) of prohibited discharges d) The location(s) of controlled measures that require maintenance e) The location(s) of control measures that failed to operate as designed or proved inadequate or inappropriate for a particular location f) The location(s) where any evidence identified under Park II G3a(7) exists g) The location(s) where any additional control measure is needed that did not exist at the time of inspection h) A list of corrective actions required (including nay 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 j) The date and signature of the qualified personnel and the operator or its duly authorized representative in accordance with Part III K of the general permit 16 Recordkeepina I. Corrective Action and Forms The operator shall implement the corrective action(s) 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. The contractor shall be responsible for the installation and maintenance of all erosion and sediment control practices for corrective actions. Corrective action notes can be found directly on the SWPPP reports. II. Grading and Stabilization Activities Log Information on when major grading activities occur and when construction activities temporarily or permanently ceases on a portion of the site will be provided on the inspection reports for the project provided in the SWPPP updates section or on the grading and stabilization log provided in the appendix. III. Log of Changes to the SWPPP 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. A log of any changes to the SWPPP is provided in the appendix. Comprehensive Site Compliance Evaluation — Post Construction: Facility inspections will be conducted at least once a year by qualified personnel. The inspections will assess conditions at the facility that could impact stormwater quality and to assess the effectiveness of the BMPs that were constructed to control the quality of the stormwater discharges. 17 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. Pollution Prevention Plan See plan detail in Appendix A page 3 of ESC plan sheet. I. Inventory for Pollution Prevention Plan: The materials or substances, other than sediment, listed below are expected to be present onsite sometime during construction: (a)Staging Area- Small Fueling activities, minor equipment maintenance, sanitary facilities, and hazardous waste storage (b)Materials Storage Area- General building materials, solvents, adhesives, paving materials, paints, aggregates, trash, etc. (c)Construction Activity- Paving, Curb/gutter installation, concrete pouring/mortar/stucco, and building construction (d) Concrete Washout Area 18 Material/Chemical Physical Description Stormwater Location- Area where Pollutants used on site Pesticides (insecticides, Various colored to Chlorinated Herbicides used for fungicides, herbicides, colorless liquid hydrocarbons, noxious weed control rodenticides) powder, pellets or organophosphates, grains carbamates, arsenic Fertilizer Liquid or solid grains Nitrogen, phosphorous Newly seeded area Plaster White granules or Calcium sulphate, Home construction powder calcium carbonate, sulfuric acid Cleaning solvents Colorless, blue or Perchloroethylene, Equipment Cleaning yellow -green liquid methylene chloride, trichloroethylene, petroleum distillates Asphalt Black solid Oil, petroleum Streets and roofing distillates Concrete White solid/grey liquid Limestone, sand, pH, Curb and gutter, chromium sidewalk and building construction Glue, Adhesives White or yellow liquid Polymers, epoxies Home Construction Paints Various colored liquid Metal oxides, Stoddard Home Construction solvent, talc, calcium carbonate, arsenic Curing Compounds Creamy white liquid Naphtha Curb and gutter Hydraulic oil/fluids Brown oily petroleum Mineral oil Leaks or broken hoses hydrocarbon from equipment Wood preservatives Clear amber or dark Stoddard solvent, Timber pads and home brown liquid petroleum distillates, construction arsenic, copper, chromium Gasoline Colorless, pale brown Benzene, ethyl Secondary or pink petroleum benzene, toluene, containment/ staging hydrocarbon x lene, MTBE area or leaks Diesel Fuel Clear, Glue -green to Petroleum distillate, oil Secondary yellow liquid and grease, containment/staging naphthalene, x lens area or leaks Antifreeze/coolant Clear green/yellow Ethylene glycol, Leaks or broken hoses liquid propylene, glycol, from equipment heavy metals (copper, lead, zinc) Sanitary Toilets Various colored liquid Bacteria, parasites, and Staging area viruses II. Material Management Practices: 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 stormwater runoff. 19 (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. (b) Good Housekeeping: The following good housekeeping practices will be followed onsite during the construction project. 1. 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. III. Hazardous Products: These practices are used to reduce the risk associated with hazardous materials 1. Products will be kept in original containers unless they are not re -sealable. 2. Original specimen labels and materials safety data sheets will be kept on file; they contain important product information. 3. If surplus product must be disposed of, manufacturers and/or local and State recommended methods for proper disposal will be followed. IV. 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 20 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 will be identified on the SWPPP/PPP if necessary. 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 insure 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: 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 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 two metal trash dumpsters 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 21 (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. V. Spills and Leaks: This section normally contains a list of significant spills and significant leaks of toxic or hazardous pollutants that occurred at areas that are exposed to precipitation or that otherwise drain to a stormwater conveyance at the facility within the 3 year period immediately prior to the date of submission of a registration statement to be covered under this permit. No significant spills and/or leaks have occurred at the site of toxic or hazardous pollutants at areas that are exposed to precipitation. VI. 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: Seminole Trail Fire Department: 434-973-1717 Albemarle County Police Department: 434-977-9041 Charlottesville Health Department: 434-972-6200 VA Department of Conservation & Recreation: 1-804-786-2094 22 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 VII. 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 storm 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. 23 Pollution Prevention Certification: I certify under penalty of law that I have read and understand 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. OWNER/OPERA COMPANY: SIGNA DATE: rJ 24 Appendices APPX A- Site Maps/Construction Plans (Including Erosion and Sediment Control, Pollution Prevention Plan, and Stormwater Management Plan) APPX B- Copy of Construction General Permit APPX C- VSMP Registration Statement, Notice of Coverage Letter, Notice of Termination APPX D- Delegation of Authority APPX E- Inspection Reports APPX F- Grading/Stabilization Log APPX G- Log of Changes and Updates to SWPPP Log APPX H- Contractor/Subcontractor Certifications and Agreements APPX I- Factsheets, Additional Information, and Spill Reports 25 APPX A- Site Maps/Construction Plans (Including Erosion and Sediment Control Plan, Pollution Prevention Plan, and Stormwater Management Plan) 26 I SITE DATA OWNER/DEIiELOPER PLAN PREPARER: TAX MAP PARCEL No. - PARCEL AREA: ZMA PHASING: NEW BEL VEDERE, INC 610 WEST RIO ROAD CHARLOTTESWLLE, VA 22901 ROUDABUSH, GALE, & ASSOCIATES 914 MON77CELLO ROAD CHARLOTTESWLLE, VA. 22902 (434)-977-0205 062A3-00-00-00100 95.753 ACRES (GWAY BLA DB 5294-417) PHASE lIl - BLOCK 10" BLOCK 10 AREA: 0.048 ACRES LOT 246 DB 5289-658 0.070 ACRES LOT 245 DB 5289-658 0.177 ACRES RESIDUE TMP 61-16OR7 DB 5289-658 31.472 ACRES TMP 62-2C GWAY BLA DB 5294-417 61.843 ACRES POR77ON OF 7MP 62A3-1 GWAY BLA DB 5294-417 9361 ACRES TOTAL BLOCK 10 AREA ZONING: NEIGHBORHOOD MODEL DISTRICT PER ZMA-2004-0007 CURRENT USE.- VACANT PROPOSED USE. RESIDEN77AL MAGISTERIAL DISTRICT.• RIO MAGISTERIAL DISTRICT CRI77CAL SLOPES: PRESERVED & MANAGED SLOPES PER ALBEMARLE COUNTY GIS CONSERVA77ON & PRESERVATION AREAS PER ZMA WATERSHED.• SOUTH FORK RIVANNA (BELOW RESERVOIR) BOUNDARY SOURCE: PLAT BIVISION OF DUNLORA" PREPARED BY W .. MORRIS FOSTER, LAND SURVEYOR, DATED NOVEMBER 1, 1985, REVISED DECEMBER 20, 1985, RECORDED AT DB 875 PG 331. ROUDABUSH, GALE & ASSOCIATES 2020, D85294-417, & DB5289-658. TOPOGRAPHY.- BARE EARTH DEM FROM LOAR, SOURCE WIN (2016). POINT CLOUD FILTERED BY RGA. BENCHMARK: FIRE HYDRANT 453.77 AT CORNER OF FOKER STREET AND FARROW DRIVE DATUM HORZ. NA VD 88,• VERTNAW83 FLOOOPLAIN. THIS PROJECT IS PAR77ALLY LOCATED WITHIN ZONE X" AS SHOW ON FLOOD INSURANCE RATE MAP. COMMUNITY PANEL NUMBER 510003C 0279 A EFFEC77lE DAT£•FEBRUARY 4. 2005. S7REAM BUFFER: THE 100' STREAM BUFFER IS LOCATED ON IMP 62-2C WHICH IS WITHIN THE BLOCK 10" AREA. THE SUBJECT PROPERTY IS NOT LOCATED WITHIN AN AGRICULTURAL -FORESTAL DISTRICT THIS S1TE IS NOT LOCATED WITHIN THE WATERSHED OF A PUBLIC WATER SUPPLY RESERVOIR. L STORMWATER MANAGEMENT & EROSION CONTROL PLAN RIO MAGISTERIAL DISTRICT, COUNTY OF ALBEMARLE, VA m ■ EXISTING INTERMEDIATE CONTOUR EXISTING INDEX CONTOUR PROPOSED CONTOUR EXISTING EDGE OF PAVEMENT PROPOSED EDGE OF PAVEMENT EXISTING CURB AND GUTTER PROPOSED CURB AND GUTTER VICINITY MAP SCALE: 1"=1000 FEET 332 3W EX. EP EP EX. C&G CG-6 LEGEND IX. 15" RCP EXISTING STORM SEWER = s I I >_ 15" RCP PROPOSED STORM SEWER EXISTING SANITARY SEWER — s s s — PROPOSED SANITARY SEWER — s — s — s — PROPERTY LINE EASEMENT LINE --- CENTERLINE — LIMITS OF CLEARING AND/OR GRADING ■mummmommmommm.■ EXISTING SPOT ELEVATION +12.0 PROPOSED SPOT ELEVATION +12.0 EXISTING TREE DRIP LINE EXISTING TREE PROPOSED TREE OAK EXISTING WATERLINE PROPOSED WATERLINE EXISTING FIRE HYDRANT PROPOSED FIRE HYDRANT EXISTING WATER VALVE PROPOSED WATER VALVE PROPOSED WATER METER EXISTING REDUCER PROPOSED REDUCER HANDICAP RAMP (CG-12) DENOTES LOCATION OF STD. VDOT CG-12 AND/OR JURISDICTIONAL STANDARD RAMP CONSTRUCTION PARKING INDICATOR INDICATES THE NUMBER OF TYPICAL PARKING SPACES BENCHMARK SOILS BOUNDARY PROPOSED STREET NAME SIGN EXISTING SIGN PROPOSED SIGN SANITARY MANHOLE IDENTIFIER w • w STORM DRAIN STRUCTURE IDENTIFIER 18 O ASSOCIATED PLANS WITH THIS PARCEL: 1.1. PRELIMINARY SUBDIVISION PLAT (SUB 2020-00139) 1.2. INITIAL SITE PLAN (SDP-2019-79) 1.3. ROAD & UTILITY PLAN 1.4. STORMWATER MANAGEMENT PLAN (THIS PLAN) 1.5. RETAINING WALL DESIGN PLANS (TO BE SUBMITTED) CONTRACTOR'S RECORD DRAWING CERTIFICATION STATEMENT: (SEE SHEET 2 FOR RECORD DRAWING REQUIREMENTS) THIS HAND MARKED SET OF DRAWINGS HAS BEEN REDLINED' TO PROVIDE AN ACCURATE DETAILED RECORD OF ANY SUBSTANTIVE CHANGES TO THE APPROVED DESIGN DRAWINGS ANY ITEMS NOT REDUNED' ON THIS PLAN SET OR SUBSEQUENT PAGES SHOULD BE CONSIDERED TO BE 'CONSTRUCTED IN ACCORDANCE WITH THE DESIGN AS SHOWN" NAME, 77TLE DATE SHEET INDEX SHEET 1-------- COVER SHEET SHEET 2-------- EROSION CONTROL NARRATIVE SHEET 3---------- EXISTING CONDITIONS, SOILS & DEMOLITION PLAN SHEET 4---------- EXISTING CONDITIONS, SOILS & DEMOLITION PLAN SHEET 5---------- EXISTING CONDITIONS, SOILS & DEMOLITION PLAN SHEET 6------- PHASE 1 OVERVIEW SHEET 7---------- EROSION CONTROL PLAN PHASE 1 SHEET 8---------- EROSION CONTROL PLAN PHASE 1 SHEET 9---------- EROSION CONTROL PLAN PHASE 1 SHEET 10--------- PHASE 2 OVERVIEW SHEET 11------- EROSION CONTROL PLAN PHASE 2 SHEET 12 ----- EROSION CONTROL PLAN PHASE 2 SHEET 13------- EROSION CONTROL PLAN PHASE 2 SHEET 14--------- PHASE 3 OVERVIEW SHEET 15--------- EROSION CONTROL PLAN PHASE 3 SHEET 16------- EROSION CONTROL PLAN PHASE 3 SHEET 17------- EROSION CONTROL PLAN PHASE 3 SHEET 18-------- PHASE 4 OVERVIEW SHEET 19--------- EROSION CONTROL PLAN PHASE 4 SHEET 20--------- EROSION CONTROL PLAN PHASE 4 SHEET 21------- EROSION CONTROL PLAN PHASE 4 SHEET 22------- EROSION CONTROL NOTES & DETAILS SHEET 23--------- EROSION CONTROL NOTES & DETAILS SHEET 24--------- WATER QUALITY COMPLIANCE SHEET 25--------- WATER QUANTITY COMPLIANCE STORMWATER MANAGEMENT COMPLIANCE SUMMARY IN ACCORDANCE WITH VIRGINIA ADMINISTRATIVE CODE SECTION 9VAC25-870-55 STORMWATER MANAGEMENT PLANS, THESE PLANS ARE DESIGNED TO ADHERE TO VIRGINIA CODE IN THESE THREE SPECIFIC AREAS, AMONG OTHERS STORMWATER RUNOFF QUALITY, STORMWATER RUNOFF QUANTITY (CHANNEL PROTECTION), AND STORMWATER RUNOFF QUANTITY (FLOODING COMPLIANCE) AS FOLLOWS: GENERAL THE CODE SECTIONS LISTED BELOW ARE SATISFIED IN GENERAL BY PURCHASING CREDITS FOR WATER QUANTITY FOR THE ENTIRE PROJECT AND BY DISCHARGING CONCENTRATED FLOW BELOW A MAPPED FEMA FLOODPLAIN. REGARDING WATER QUALITY (9VAC25-870-63 & M: THIS DESIGN PROPOSES BY SATISFACTION OF SECTION 44.15.35, THAT WATER QUALITY IS ACCOMPLISHED BY OFFSITE ALTERNATIVES. BASED ON NEW DEVELOPMENT OF BELVEDERE PHASE 3 BLOCK 10, THE WATER QUALITY PORTIONS OF THIS PLAN WILL BE SATISFIED WITH PURCHASING 13.31 IB/YR OF OFFSITE NUTRIENT CREDITS IN THE SAME OF ADJACENT HYDROLOGIC UNIT CODE (02080204). COMPLIANCE OF 9VAC25-870-65.F: OFFSITE ALTERNATIVE IAW 9VAC25-870-69 PURCHASE OF NUTRIENT OFFSET CREDITS IS PROPOSED AND AFFIRMED. JUSTIFICATION FOR OFFSITE CREDITS HAS BEEN PROVIDED UNDER SEPARATE COVER (02/11/2021). STORMWATER QUANTITY COMPLIANCE MVAC25-870-66 PART B SPECIFICALLY DEALS WITH CHANNEL PROTECTION): STORMWATER RUNOFF COLLECTED WITHIN THE BLOCK 10 PROJECT WILL BE CONVEYED THROUGH A MANMADE CONVEYANCE NETWORK TO AN OUTFALL AT THE RIVANNA RIVER. THE NONEROSIVE PASSAGE OF THE 2—YEAR EVENT WILL DISCHARGE AT THE NORMAL RIVER ELEVATION (NRE) OF THE RIVANNA RIVER, AN ADEQUATE CHANNEL AT OR BELOW THE "1% RULE" LIMIT. THIS DETERMINATION IS DOCUMENTED IN A SEPARATE SUBMITTAL TO ALBEMARLE COUNTY (02/11/2021).. THE PROJECT IS IN COMPLIANCE OF CHANNEL PROTECTION, AS MANMADE IMPROVEMENTS (SECTION 1.A) WILL BE UTILIZED ALL THE WAY TO THE NRE OF THE RIVANNA. THIS IS THE POINT OF ANALYSIS OF THE SYSTEM AND THE 1% RULE (SECTION 4.A) REMOVES ANY NEED TO FURTHER DEMONSTRATE CAPACITY OF THE CHANNEL AND NEGATES ANY NEED FOR DETENTION OR ENERGY BALANCE PROVISION. WHILE THE UNDETAINED AREAS HAVE BEEN DESIGNED AS SHEET FLOW IN ACCORDANCE WITH 870-66.D STORMWATER QUANTITY COMPLIANCE MIVAC25-870-66 PART C SPECIFICALLY DEALS WITH FLOOD PROTECTION): PER SECTION C.2.A, THIS PROJECT IS IN COMPLIANCE OF FLOOD PROTECTION REQUIREMENTS. THE ENTIRE 10—YEAR PEAK FLOW IS CONFINED WITHIN PIPES AND CONVEYED TO THE OUTFALL, BELOW A FEMA MAPPED FLOODPLAIN. WHILE THE UNDETAINED AREAS HAVE BEEN DESIGNED AS SHEET FLOW IN ACCORDANCE WITH 870-66.D APPROVALS DATE DEPARTMENT OF COMMUNITY DEVELOPMENT ENGINEERING INSPECTIONS i zU o w CO m o OZ z co O (D � Y tf)J /H0) maw C) c�n1 T Q J = Qyi co OU ¢n m '0 = w a 0 Oit (1)w 0 U mQ Ir J Z v U ZO zij ¢_ wo LL U) O Z N W N w a(1) z J > O va w a J } (% > 0 CO Oaz� °o w �Ir rn= rn U z 0 s U an 0 a 0 O z 0-4 0 a u I 0 w a 0 0 z DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT �o}��SyTB Op plate r U Jimmy L Taggart Lie. No. A 22841 ,444 �O,e88ZONAL 1''PO`Y- z Q g z IL O 0 O T > H- Lu U Ir T z O -i m O m LJ J v7 U Q O co LL E- Ir Q O W W o > w 06 Q Q Z Ill 0 I O W 0-U O zLJJ fr �� c� Q W X p Q Q � W Q - J -- -- 2 m Q O F- O N DATE: 02-15-2021 SCALE: 1 ":1000' JOB: 8438 SHEET: 1 OF 25 14 EROSION AND SEDIMENT CONTROL NARRATIVE PROJECT DESCRIPTION THE FIRST STAGE OF CONSTRUCTION OF BELVEDERE BLOCK 10 PROPOSES THE CONSTRUCTION OF 40 ATTACHED TOWNHOUSE UNITS AND 28 SINGLE FAMILY DETACHED UNITS (PLUS 2 EXISTING SINGLE FAMILY DETACHED UNITS). TOTAL DISTURBED AREA IS 19.56AC. PRIOR TO CONSTRUCTION 1. OWNER SHALL POST SURETY BONDS FOR CONSTRUCTION, EROSION & SEDIMENT CONTROL. 2. CONTRACTOR SHALL OBTAIN PERMITS TO WORK WITHIN STATE RIGHT-OF-WAY (VDOT LAND -USE PERMIT). BONDING FOR WORK WITHIN THE VDOT RIGHT-OF-WAY MAY BE REQUIRED TO OBTAIN THE PERMIT. 3. CONTRACTOR SHALL COORDINATE WITH OWNER TO OBTAIN VSMP PERMITS, AS REQUIRED BY THE STATE DEPARTMENT OF ENVIRONMENTAL QUALITY (DEQ). 4. CONTRACTOR SHALL OBTAIN LAND DISTURBANCE PERMIT FROM THE COUNTY OF ALBEMARLE PRIOR TO BEGINNING CONSTRUCTION. 5. A PRE -CONSTRUCTION MEETING WITH THE ENGINEER, THE CERTIFIED LAND DISTURBER, AND THE ENVIRONMENTAL INSPECTOR MAY ALSO BE REQUIRED. ALLOW 72 HOURS FOR COORDINATION AND SCHEDULING OF PRE -CONSTRUCTION MEETING. OFF -SITE AREAS ALL EXCESS MATERIAL GENERATED AS PART OF THIS PROJECT SHALL BE HAULED TO A LOCATION WITHIN THE BELVEDERE DEVELOPMENT THAT HAS BEEN APPROVED BY THE COUNTY OF ALBEMARLE COMMUNITY DEVELOPMENT DEPARTMENT. SOILS 16 - CODORUS SILT LOAM (0% TO 2% SLOPES): MODERATELY SLOPING AND OCCASIONALLY FLOODED. STARTING AT SURFACE LAYER TO SUBSTRATUM SOIL LAYERS CONSIST OF SILT LOAM, SILTY CLAY LOAM, SILT LOAM. PERMEABILITY IS MODERATELY HIGH TO HIGH. AVAILABLE WATER STORAGE IS HIGH. 27B - ELIOAK LOAM (2% TO 7% SLOPES): MODERATELY SLOPING AND WELL DRAINED. STARTING AT SURFACE LAYER TO SUBSTRATUM, SOIL LAYERS CONSIST OF LOAM, SILTY CLAY, SILT LOAM. PERMEABILITY IS MODERATELY HIGH TO HIGH, AVAILABLE WATER STORAGE CAPACITY IS MODERATE. SURFACE RUNOFF IS MEDIUM 27C - ELIOAK LOAM (7% TO 15% SLOPES): STEEP SLOPES AND WELL DRAINED. STARTING AT SURFACE LAYER TO SUBSTRATUM, SOIL LAYERS CONSIST OF LOAM, SILTY CLAY, SILT LOAM. PERMEABILITY IS MODERATELY HIGH TO HIGH, AVAILABLE WATER STORAGE IS MODERATE. SURFACE RUNOFF IS MEDIUM. 39D - HAZEL LOAM (15% TO 25% SLOPES): SOIL IS DEEP, STRONGLY SLOPING AND EXCESSIVELY DRAINED. STARTING AT SURFACE LAYER TO SUBSTRATUM, SOIL LAYERS CONSIST OF LOAM UP TO 20 INCHES DEEP, CHANNERY LOAM UP TO 30 INCHES, BEDROCK UP TO 79 INCHES. PERMEABILITY IS MODERATELY HIGH TO HIGH WHILE AVAILABLE WATER STORAGE IN PROFILE IS LOW. 40E - HAZEL LOAM (25% TO 45% SLOPES): VERY STONY, EXCESSIVELY SLOPING AND EXCESSIVELY DRAINED. STARTING AT SURFACE TO SUBSTRATUM, SOIL LAYERS CONSIST OF LOAM, CHANNERY LOAM, BEDROCK. PERMEABILITY IS MODERATELY HIGH TO HIGH. AVAILABLE WATER STORAGE IS LOW. 95 - HATBORO SILT LOAM (0% TO 27): OCCASIONALLY FLOODED, POORLY DRAINED. STARTING AT SURFACE TO SUBSTRATUM, SOIL LAYERS CONSIST OF SILT LOAM, SILTY CLAY LOAM, SANDY LOAM. PERMEABILITY IS MODERATELY HIGH TO HIGH. AVAILABLE WATER STORAGE IS HIGH. CRITICAL AREAS A. STEEP SLOPES STEEP SLOPES PRESERVED AND STEEP SLOPES MANAGED PER ALBEMARLE COUNTY CIS DOES EXIST ON THE NORTH EAST SIDE OF THE SITE. THE AREAS WHERE CONSTRUCTION ACTIVITIES OCCUR NEAR PRESERVED STEEP SLOPES, TREE PROTECTION AND SILT FENCE WILL BE INSTALLED AS A PROTECTIVE BARRIER, AS TO NOT DISTURB THE SLOPES. STRUCTURAL PRACTICES 1. SAFETY FENCE (3.01) - A TEMPORARY SAFETY FENCE SHALL BE CONSTRUCTED WHERE DEEMED NECESSARY DURING CONSTRUCTION TO PROTECT THE MANHOLES AND SANITARY LINE FROM CONSTRUCTION TRAFFIC. 2. TEMPORARY CONSTRUCTION ENTRANCE (3.02) - A TEMPORARY CONSTRUCTION ENTRANCE SHALL BE INSTALLED AT SITE ENTRANCE ON FOWLER STREET. 3. ROAD STABILIZATION (3.03) - ACCESS ROADS, PARKING AREAS, AND OTHER ON -SITE VEHICLE TRANSPORTATION ROUTES SHALL BE STABILIZED WITH STONE IMMEDIATELY AFTER GRADING. 4. SILT FENCE BARRIER (3.051 - SILT FENCE BARRIERS WILL BE INSTALLED TO FILTER RUNOFF FROM SHEET FLOW AS INDICATED ON THE EROSION AND SEDIMENT CONTROL PLAN. 5. SUPER SILT FENCE BARRIER - WIRE -REINFORCED SILT FENCE BARRIER WILL BE INSTALLED TO FILTER RUNOFF FROM SHEET FLOW IF DEEMED NECESSARY BY THE EROSION CONTROL INSPECTOR. 6. DIVERSION (3.12) - A CHANNEL CONSTRUCTED ACROSS A SLOPE WITH A SUPPORTING EARTHEN RIDGE ON THE LOWER SIDE. 7. TEMPORARY SEDIMENT TRAP (3.13) - A TEMPORARY PONDING AREA FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A STONE OUTLET. 8. TEMPORARY SEDIMENT BASIN (3.14) - A TEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE STRUCTURE FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. VEGETATIVE PRACTICES 1. SURFACE ROUGHENING (3.29) - ALL AREAS WITH A GRADE STEEPER THAN 3:1 SHALL BE STAIR -STEP GRADED OR GROOVED (PLATE 3,29-4) TO AID IN GRASS ESTABLISHMENT, INCREASE INFILTRATION, AND TO SLOW RUNOFF VELOCITIES. 2. TOPSOILING & STOCKPILING (3.301 - TOPSOIL WILL BE STRIPPED FROM AREAS TO BE GRADED AND STOCKPILED FOR LATER USE. STOCKPILES ARE TO BE STABILIZED WITH TEMPORARY VEGETATION OR TO HAVE SILT FENCE INSTALLED ALONG THE LOWER PERIMETER TO PROTECT DOWNSTREAM AREAS. 3. TEMPORARY SEEDING (3.31)_- AREAS NOT BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 14 DAYS SHALL BE STABILIZED WITH A TEMPORARY SEED MIXTURE ACCEPTABLE FOR THAT TIME OF YEAR. CRIMPING, PUNCH ROLLER -TYPE ROLLERS, OR TRACK WALKING MAY BE USED TO INCORPORATE STRAW MULCH INTO THE SOIL ON SLOPES IF STRAW IS TO BE USED. 4. PERMANENT SEEDING (3.32) - AREAS BROUGHT TO FINAL GRADE OR THOSE CONSTRUCTION AREAS THAT WILL REMAIN DORMANT FOR YEAR OR MORE SHALL BE STABILIZED WITH A PERMANENT SEED MIXTURE ACCEPTABLE TO THAT TIME OF YEAR. PREPARE SURFACE WITH APPROVED TREATMENT AND ADDITIVES PRIOR TO APPLYING SEED. 5. MULCH 3.35 - PLANT RESIDUES OR OTHER SUITABLE MATERIALS SHALL BE APPLIED TO DISTURBED SURFACES TO PREVENT EROSION AND REDUCE OVERLAND FLOW VELOCITIES. THIS PRACTICE SHOULD BE APPUED TO ALL SEEDING OPERATIONS, OTHER PLANTER MATERIALS WHICH DO NOT PROVIDE ADEQUATE SOIL PROTECTION BY THEMSELVES, AND BARE AREAS WHICH CANNOT BE SEEDED DUE TO THE SEASON BUT WHICH STILL NEED PROTECTION TO PREVENT SOIL LOSS. CRIMPING, PUNCH ROLLER -TYPE ROLLERS, OR TRACK WALKING MAY BE USED TO INCORPORATE STRAW MULCH INTO THE SOIL ON SLOPES IF STRAW IS TO BE USED. 6. EROSION CONTROL BLANKETS 3.36 - EROSION CONTROL BLANKETS IN CONJUNCTION WITH PERMANENT SEEDING WILL BE INSTALLED ON ALL SLOPES STEEPER THAN 3:1 FOLLOWING GRADING. EROSION CONTROL BLANKETS WILL ALSO BE INSTALLED IN DITCHES WHERE POTENTIAL EROSIVE VELOCITIES MAY EXIST AS DETERMINED BY ENGINEERING CALCULATIONS. THIS WILL PROTECT FROM RILL AND GULLY EROSION. 7. TREE PROTECTION (3.38) - THE TREE FENCE BARRIER WILL BE INSTALLED TO PROTECT THE TREES OUTSIDE OF THE LIMITS OF DISTURBANCE AS INDICATED ON THE EROSION AND SEDIMENT CONTROL PLAN. 8. DUST CONTROL (3.39) - DUST CONTROL METHODS MUST BE USED TO REDUCE THE AMOUNT OF AIRBORNE DUST DURING ALL PHASES OF CONSTRUCTION WHERE SOIL IS EXPOSED OR DISTURBED. MANAGEMENT STRATEGIES 1. CONSTRUCTION WILL BE SEQUENCED SO THAT GRADING OPERATIONS CAN BE SEQUENCED, AND ALSO BEGIN AND END AS QUICKLY AS POSSIBLE. 2. THE CONSTRUCTION ENTRANCE AND PERIMETER EROSION CONTROL MEASURES SUCH AS TREE PROTECTION AND SILT FENCE SHALL BE INSTALLED AS THE FIRST STEP OF DISTURBANCE. 3. SEDIMENT TRAPS SHALL BE INSTALLED WITH PERIMETER SILT FENCE PRIOR TO ANY GRADING AND SHALL BE SEEDED AND MULCHED IMMEDIATELY FOLLOWING INSTALLATION. 4. THE SEDIMENT TRAPS SHALL BE CHECKED FOR SEDIMENT ACCUMULATION AFTER EVERY RUNOFF PRODUCING STORM EVENT. SEDIMENT SHOULD BE REMOVED WHEN IT REACHES ONE-HALF OF THE DESIGN VOLUME OF THE WET STORAGE. 5. TEMPORARY SEEDING OR OTHER STABILIZATION METHODS, SUCH AS BASE AGGREGATE WILL FOLLOW IMMEDIATELY AFTER REACHING FINAL GRADES. kL 6. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RE -SEEDED AS NEEDED TO ESTABLISH GROWTH.. 7. THE JOB SUPERINTENDENT SHALL BE RESPONSIBLE FOR THE INSTALLATION AND MAINTENANCE OF ALL EROSION AND SEDIMENT CONTROL PRACTICES. 8. DURING FINE GRADING OPERATIONS, MAINTAIN ALL DIVERSION DITCHES TO THE SEDIMENT TRAPS AND BASIN. THE SEDIMENT TRAPS AND BASIN SHALL REMAIN FUNCTIONAL THROUGHOUT INSTALLATION OF THE STORM SEWER INLETS, PIPES, OUTFALLS. 9. INSTALL SILT FENCE INLET PROTECTION TRAPPING MEASURES AT EACH INLET LOCATION WITHIN THE DITCH WHERE APPLICABLE. 10. WHILE THE SEDIMENT BASIN REMAINS FUNCTIONAL FOR THE DISTURBED AREA, INSTALL THE STORMWATER MANAGEMENT PIPES AND OUTLET PROTECTION MEASURES PER THE SPECIFICATIONS. 11. AFTER BEING NOTIFIED BY THE EROSION AND SEDIMENT CONTROL ADMINISTRATOR THE TEMPORARY EROSION AND SEDIMENT CONTROLS CAN BE CLEANED UP OR REMOVED AND THE SEDIMENT BASIN CAN BE FILLED IN AND SEEDED, THEREBY REDIRECTING DRAINAGE TO THE PERMANENT FACILITIES. THE STORMWATER MANAGEMENT FACILITIES SHOULD BE CHECKED REGULARLY BY THE HOMEOWNERS ASSOCIATIONS TO ENSURE THAT THEY ARE STRUCTURALLY SOUND AND HAVE NOT BEEN DAMAGED. PERMANENT STABILIZATION ALL AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH STRAW & SEED IMMEDIATELY FOLLOWING FINISHED GRADE. SEEDING SHALL BE DONE WITH KENTUCKY 31 TALL FESCUE IN ACCORDANCE TO STANDARD AND SPECIFICATION 3.32 PERMANENT SEEDING OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. ANY FERTILIZER AND LIME APPLICATIONS SHALL BE IN ACCORDANCE WITH SOIL TEST RESULTS. ALL SEEDED AREAS WILL BE STRAW MULCHED TO PROTECT AGAINST RILL EROSION AND TO PRESERVE SOIL MOISTURE THAT WILL ENHANCE SEED GERMINATION. CRIMPING PUNCH ROLLER -TYPE ROLLERS, OR TRACK WALKING MAY BE USED TO INCORPORATE STRAW MULCH INTO THE SOIL ON SLOPES IF STRAW IS TO BE USED. EROSION CONTROL MAINTENANCE 1. IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAINFALL. THE FOLLOWING ITEMS WILL BE CHECKED IN PARTICULAR: 2. THE CONSTRUCTION ENTRANCE SHALL BE CHECKED DAILY FOR SOIL BUILDUP. IF THE ENTRANCE BECOMES CLOGGED WITH SOIL AND FAILS TO PREVENT THE TRANSPORTATION OF SOIL ONTO THE ROADWAY, ADDITIONAL STONE, REPLACEMENT OF STONE, OR A WASH -RACK MAY BE REQUIRED. 3. SILT FENCE SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. CLOSE ATTENTION SHALL BE PAID TO THE REPAIR OF DAMAGED SILT FENCE RESULTING FROM END RUNS AND UNDERCUTTING. SHOULD THE FABRIC ON A SILT FENCE DECOMPOSE OR BECOME INEFFECTIVE PRIOR TO THE END OF THE EXPECTED USABLE LIFE AND THE BARRIER STILL BE NECESSARY, THE FABRIC SHALL BE REPLACED PROMPTLY. SEDIMENT DEPOSITS SHOULD BE REMOVED AFTER EACH STORM EVENT. THEY MUST BE REMOVED WHEN DEPOSITS REACH APPROXIMATELY ONE-HALF THE HEIGHT OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE SILT FENCE IS NO LONGER REQUIRED SHALL BE DRESSED TO CONFORM WITH THE EXISTING GRADE, PREPARED, AND SEEDED. 4. DIVERSION DIKES SHALL BE INSPECTED AFTER EVERY STORM AND REPAIRS MADE TO THE DIKE, FLOW CHANNEL, OUTLET, OR SEDIMENT TRAPPING FACILITY AS NECESSARY. ONCE EVERY TWO WEEKS, WHETHER A STORM EVENT HAS OCCURRED OR NOT, THE MEASURE SHALL BE INSPECTED AND REPAIRS MADE IF NEEDED. DAMAGES CAUSED BY CONSTRUCTION TRAFFIC OR OTHER ACTIVITY MUST BE REPAIRED BEFORE THE END OF EACH WORKING DAY. 5. STORMWATER CONVEYANCE CHANNELS (WHERE APPLICABLE): 5.1. GRASS LINED CHANNELS - DURING THE INITIAL ESTABLISHMENT, GRASS LINED CHANNELS SHOULD BE REPAIRED IMMEDIATELY AND RE-ESTABLISHED IF NECESSARY. AFTER GRASS HAS BECOME ESTABLISHED THE CHANNEL SHOULD BE CHECKED PERIODICALLY TO DETERMINE IF THE GRASS IS WITHSTANDING FLOW VELOCITIES WITHOUT DAMAGE. IF THE CHANNEL IS TO BE MOWED, IT SHOULD BE DONE IN A MANNER THAT IT WILL NOT DAMAGE THE GRASS. 5.2. RIPRAP-LINED CHANNELS - RIPRAP LINED CHANNELS SHOULD BE CHECKED PERIODICALLY TO ENSURE THE SCOUR IS NOT OCCURRING BENEATH FABRIC UNDERLINING OF THE RIPRAP LAYER. THE CHANNEL SHOULD ALSO BE CHECKED TO DETERMINE THE STONES ARE NOT DISLODGED BY LARGE FLOWS. 5.3. IF SEDIMENT IS DEPOSITED IN A GRASS -LINED CHANNEL, IT SHOULD BE REMOVED PROMPTLY TO PREVENT DAMAGE TO THE GRASS. SEDIMENT DEPOSITED IN A RIPRAP CHANNEL SHOULD BE REMOVED WHEN IT REDUCES THE CAPACITY OF THE CHANNEL. 6. CHECK DAMS SHALL BE CHECKED FOR SEDIMENT ACCUMULATION AFTER EVERY RUNOFF PRODUCING STORM EVENT. SEDIMENT SHOULD BE REMOVED WHEN IT REACHES ONE-HALF OF THE ORIGINAL HEIGHT OF THE MEASURE. REGULAR INSPECTIONS SHALL BE MADE TO INSURE THE CENTER OF EACH DAM IS LOWER THAN THE EDGES. EROSION CAUSED BY HIGH FLOWS AROUND THE EDGES OF THE DAM SHOULD BE CORRECTED IMMEDIATELY. 7. THE EARTHEN EMBANKMENTS SHALL BE CHECKED REGULARLY TO ENSURE THAT IT IS STRUCTURALLY SOUND AND HAS NOT BEEN DAMAGED BY EROSION OR CONSTRUCTION EQUIPMENT. 8. THE BASIN SHOULD BE CHECKED AFTER EACH RUNOFF -PRODUCING RAINFALL FOR SEDIMENT CLEANOUT. WHEN THE BASIN REACHES CLEAN -OUT LEVEL, IT SHALL BE REMOVED AND PROPERLY DISPOSED OF. 9. THE STORMWATER MANAGEMENT FACILITIES SHOULD BE CHECKED REGULARLY BY THE HOMEOWNERS ASSOCIATIONS TO ENSURE THAT THEY ARE STRUCTURALLY SOUND AND HAVE NOT BEEN DAMAGED BY EROSION. 10. THE EMERGENCY SPILLWAY SHALL BE CHECKED REGULARLY TO ENSURE THAT ITS UNING IS WELL ESTABLISHED AND EROSION RESISTANT. GRASS SHALL BE KEPT MOWN BELOW A HEIGHT OF 15" AND THE OUTLET SHOULD BE CHECKED FOR CLOGGING. 11. THE DAM SECTION SHALL BE KEPT FREE OF SAPLINGS OR TREES.(REFER TO THE ADDITIONAL MAINTENANCE SPECIFICATIONS) 12. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RE -SEEDED AS NEEDED. IN THE EVENT THAT THE APPLIED SEEDING FAILS TO TAKE HOLD, BLANKET MATTING SHALL BE PLACED IN APPROPRIATE AREAS DEEMED NECESSARY BY THE ENGINEER OR EROSION CONTROL INSPECTOR. SEQUENCE OF CONSTRUCTION AFTER OBTAINING ALL REQUIRED PERMITS THE CONTRACTOR SHALL COORDINATE A PRE -CONSTRUCTION MEETING, ALLOWING 72 HOURS FOR ITS COORDINATION. 1. PHASE 1 1.1. INSTALL THE CONSTRUCTION ENTRANCE AT SITE ENTRANCE OFF OF FOWLER STREET. SHOULD THE TEMPORARY CONSTRUCTION ENTRANCE NOT BE MAINTAINED PROPERLY OR AN EXCESSIVE AMOUNTS OF SOIL BE TRACKED ONTO THE PUBLIC ROADWAY, THEN A PAVED CONSTRUCTION ENTRANCE, WATER TANKER TRUCK WITH TWO (2) PRESSURE WASHERS, AND A SETTLING AREA MAY BE REQUIRED BY THE EROSION AND SEDIMENT CONTROL PROGRAM ADMINISTRATOR. 1.2. PLACE SILT FENCE, TREE PROTECTION, AND OTHER PERIMETER CONTROLS. CLEARING AND GRUBBING SHALL FIRST BE LIMITED TO THAT NECESSARY TO INSTALL THE PERIMETER CONTROLS. 1.3. INSTALL SEDIMENT TRAPS 1 THOUGH 7. PROVIDE STABILIZATION MEASURES TO ALL TRAPS. 1.4. CONTRACTOR TO CONSTRUCT DIVERSION DIKES (DD) TO DIRECT RUNOFF TO THE SEDIMENT TRAPS. CONTRACTOR TO ENSURE A POSITIVE SLOPE IS MAINTAINED. BERM SHALL BE STABILIZED AS A FIRST STEP IN DISTURBANCE. 1.5. ONCE ALL OF THE PHASE 1 CONTROLS ARE INSTALLED, AND PRIOR TO ADDITIONAL CLEARING AND GRUBBING, THE CONTRACTOR SHALL COORDINATE INSPECTIONS, AS REQUIRED BY THE COUNTY OF ALBEMARLE. 1.6. CLEAR AND GRUB THE REMAINDER OF THE PROJECT AREA. THE LAND DISTURBANCE SHALL BE RESTRICTED TO THE LIMITS OF DISTURBANCE SHOWN IN THE APPROVED EROSION CONTROL PLANS. 2. PHASE 2 2.1. STRIP TOPSOIL AND STOCKPILE WITHIN AN AREA ON THE PROPERTY AT A LOCATION APPROVED BY ALBEMARLE COUNTY COMMUNITY DEVELOPMENT. INSTALL SILT FENCE AT THE PERIMETER OF THE STOCKPILE(S). 2.2. CONSTRUCTION OF THE WALLS MAY BEGIN. MUCK OUT, FILL, AND CLOSE SEDIMENT TRAPS THAT INTERFERE WITH WALL CONSTRUCTION AND DIVERT WATER TO A NEIGHBORING SEDIMENT TRAP. RELOCATE SEDIMENT TRAP 1, SEDIMENT TRAP 4, AND SEDIMENT TRAP 7. 2.3. CONTRACTOR TO BRING SITE UP TO GRADE AS SHOWN ON THE PHASE 2 EROSION AND CONTROL PLAN. CONSTRUCTION ROAD STABILIZATION MAY BE REQUIRED. 2.4 PERMANENT SOIL STABILIZATION SHALL BE APPLIED TO ALL 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 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. LIME, FERTILIZE, AND APPLY TEMPORARY OR PERMANENT SEEDING TO ALL DENUDED AREAS IMMEDIATELY AFTER ACHIEVING FINAL GRADES. ALL PERMANENT SLOPES STEEPER THAN 3:1 SHALL RECEIVE STABILIZATION WITH LANDSCAPING VEGETATION HARDIER THAN GRASS, WHICH WILL NOT REQUIRE MOWING. 3. PHASE 3 3.1 CONTRACTOR TO BEGIN CONSTRUCTION ON ALL UTILITIES. ALL INLETS MUST BE PROTECTED BY INLET PROTECTION (IP) AS SHOWN ON SHEET 14. 3.2 FINE GRADE AND INSTALL CURBING, ROADS, AND LOTS. MUCK OUT, FILL, AND CLOSE TRAPS ONCE WATER IS FLOWING TO THE INLETS AND THROUGH THE STORMWATER PIPES. SEDIMENT TRAP 4 TO REMAIN UNTIL PHASE 4. 4. PHASE 4 4.1 SPREAD TOPSOIL AND ADD PERMANENT SEEDING TO ANY DISTURBED AREA.. 4.2 AFTER SITE IS STABILIZED AND PERMISSION IS OBTAINED FROM THE EROSION CONTROL INSPECTOR, REMOVE SILT FENCING AND OTHER REMAINING EROSION CONTROL MEASURES IF DEEMED APPROPRIATE BY ALBEMARLE COUNTY. 4.3 DEMOBILIZE. EROSION AND SEDIMENT CONTROL 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 1.1. CONTRACTOR SHALL ESTABLISH A STABILIZED SITE AND NOT ALLOW ANY SEDIMENT TO EXIT THE PROJECT LIMITS. 2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES 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. 2.1. CONTRACTOR TO PROTECT STOCKPILE AREAS WITH SILT FENCE. 3. A PERMANENT VEGETATIVE COVER SHALL BE ESTABUSHED 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. 3.1. CONTRACTOR SHALL ESTABLISH A VEGETATIVE COVER ON ALL DENUDED AREAS. 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. 4.1. CONTRACTOR SHALL ESTABLISH THE PERIMETER CONTROLS AS THE FIRST STEP OF THE LANDS DISTURBANCE FOR THIS PROJECT. 5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. 5.1. CONTRACTOR SHALL INSPECT EROSION CONTROL MEASURES AFTER EACH RAINFALL EVENT. 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. 6.1. 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. 6.2. 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 STABIUZING MEASURES UNTIL THE PROBLEM IS CORRECTED.THERE ARE NO PROPOSED CUT OR FILL SLOPES. HOWEVER, THE CONTRACTOR IS TO RESTORE THE PROJECT AREA TO EXISTING GRADE. IF THE AREAS WITH NATURALLY STEEP SLOPES ARE FOUND TO BE ERODING EXCESSIVELY AFTER ONE YEAR, CONTRACTOR IS TO PROVIDE 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 STRUCTURENAXIMIZE SHEETFLOW AND GROUNDWATER INFILTRATION 9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED.CONTRACTOR TO NOTIFY ENGINEER AND COUNTY EROSION CONTROL INSPECTOR. 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.CONTRACTOR SHALL FOLLOW THE VESCH CHAPTER 3.25 UTILITY STREAM CROSSING REQUIREMENTS FOR THE TWO INTERMITTENT STREAM CROSSINGS. 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.CONTRACTOR SHALL FOLLOW ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS FOR STREAM CROSSINGS. 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: 16.1. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME. 16.2. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES. 16.3. 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. 16.4. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION. 16.5. RE -STABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THIS CHAPTER. 16.6. APPLICABLE SAFETY REQUIREMENTS SHALL BE COMPLIED WITH.CONTRACTOR TO ADHERE TO THE APPLICABLE STANDARD FOR PRIVATE AND PUBLIC UTILITY INSTALLATION. 17. WHERE 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 PUBUC 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 ACTIVITES.CONTRACTOR SHALL MAKE PROVISIONS TO KEEP ADJACENT ROADS CLEAN FROM SOIL BUILD-UP. 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.CONTRACTOR SHALL STABILIZE SITE, AND OBTAIN INSPECTOR APPROVAL PRIOR TO REMOVING EC MEASURES. UPON APPROVAL OF THE ENVIRONMENTAL INSPECTOR, INSTALL INFILTRATION AREAS AND CONNECT ROOF DRAINS. 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 RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM 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. 19.1. 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. 19.2. ADEQUACY OF ALL CHANNELS AND PIPES SHALL BE VERIFIED USING THE VSMP CHANNEL PROTECTION CRITERIA. STORMWATER DISCHARGES ARE CLASSIFIED INTO ONE OF THREE TYPES OF CHANNEL. (1)"MANMADE STORMWATER CONVEYANCE SYSTEM" MEANS A PIPE, DITCH, VEGETATED SWALE, OR OTHER STORMWATER CONVEYANCE SYSTEM CONSTRUCTED BY MAN EXCEPT FOR RESTORED STORMWATER CONVEYANCE SYSTEMS OR, (A) THE MANMADE STORMWATER CONVEYANCE SYSTEM SHALL CONVEY THE POST -DEVELOPMENT PEAK FLOW RATE FROM THE TWO-YEAR EVENT WITHOUT CAUSING EROSION OF THE SYSTEM DETENTION OF THE STORMWATER OR DOWNSTREAM IMPROVEMENTS MAY BE INCORPORATED INTO THE APPROVED LAND -DISTURBING ACTIVITY TO MEET THIS CRITERIA AT THE DISCRETION OF THE STORMWATER PROGRAM ADMINISTRATIVE AUTHORITY. (B) THE PEAK DISCHARGE REQUIREMENTS FOR CONCENTRATED STORMWATER FLOW TO NATURAL STORMWATER CONVEYANCE SYSTEMS SHALL BE MET. QDEVELOPED <= I.F. * (QPRE-DEV. * RVPRE-DEV.) / RVDEVELOPED UNDER NO CONDITION SHALL QDEVELOPED > Q PRE-DEV. NOR SHALL QDEVELOPED BE REQUIRED TO BE LESS THAN THAT QFOREST * RVPRE-DEV.)/RVDEVELOPED OR IN ACCORDANCE WITH ANOTHER METHODOLOGY THAT IS DEMONSTRATED BY THE VSMP AUTHORITY TO ACHIEVE EQUIVALENT RESULTS AND IS APPROVED BY THE BOARD. (2) "NATURAL STORMWATER CONVEYANCE SYSTEM" MEANS THE MAIN CHANNEL OF A NATURAL STREAM AND THE FLOOD -PRONE AREA ADJACENT TO THE MAIN CHANNEL OR, (3) "RESTORED STORMWATER CONVEYANCE SYSTEM" MEANS A STORMWATER CONVEYANCE SYSTEM THAT HAS BEEN DESIGNED AND CONSTRUCTED USING NATURAL CHANNEL DESIGN CONCEPTS. RESTORED STORMWATER CONVEYANCE SYSTEMS INCLUDE THE MAIN CHANNEL AND THE FLOOD -PRONE AREA ADJACENT TO THE MAIN CHANNEL (A) THE DEVELOPMENT SHALL BE CONSISTENT, IN COMBINATION WITH OTHER STORMWATER RUNOFF, WITH THE DESIGN PARAMETERS OF THE RESTORED STORMWATER CONVEYANCE SYSTEM THAT IS FUNCTIONING IN ACCORDANCE WITH THE DESIGN OBJECTIVES. (B) THE PEAK DISCHARGE REQUIREMENTS FOR CONCENTRATED STORMWATER FLOW TO NATURAL STORMWATER CONVEYANCE SYSTEMS SHALL BE MET. SEE 19(B)(1)(B). GENERAL EROSION AND SEDIMENT CONTROL NOTES WORK AREA PROTECTION & MAINTENANCE 1. ALL FENCES REQUIRED TO BE REMOVED OR DISTURBED BY CONSTRUCTION SHALL BE SALVAGED, STORED, PROTECTED AND RE -INSTALLED BY CONTRACTOR AT THE DIRECTION OF AND LOCATION DESIGNATED BY THE PROJECT MANAGER. IF SUCH FENCE MATERIAL CANNOT BE REUSED DUE TO DAMAGE CAUSED BY CONTRACTOR CONTRACTOR SHALL INSTALL NEW FENCE OF THE SAME TYPE OF MATERIAL. TEMPORARY FENCING REQUIRED BY PRIVATE PROPERTY OWNERS SHALL BE PROVIDED BY CONTRACTOR. CONTRACTOR IS ADVISED TO CONTACT PROPERTY OWNERS AT LEAST FORTY-EIGHT (48) HOURS IN ADVANCE OF REMOVING ANY FENCE IN ORDER TO COORDINATE RELOCATION AND/OR PROTECTION OF ANY ANIMALS, AND TO ESTABUSH AND CONFIRM WITH THE OWNER THE PRE -CONSTRUCTION CONDITION OF ANY FENCE TO BE REMOVED, DISTURBED OR REPLACED. 2. CONTRACTOR IS PERMITTED TO WORK IN THE PUBLIC RIGHT-OF-WAY FOLLOWING ISSUANCE OF VDOT APPROVAL) AND ANY TEMPORARY OR PERMANENT EASEMENT (FOLLOWING VERIFICATION OF EXISTENCE OF EASEMENT)SHOWN ON THE PLANS. HOWEVER CONTRACTOR SHALL NOTIFY PROPERTY OWNERS FORTY-EIGHT ( ) (48) HOURS PRIOR TO WORKING ON ANY PRIVATE PROPERTY TO GAIN AND COORDINATE ACCESS AND TO DETERMINE A STORAGE AREA FOR MATERIALS IF NEEDED. COORDINATION OF ACCESS TO PUBLIC RIGHT-OF-WAY AND STORAGE OF MATERIALS THEREON SHALL BE COORDINATED WITH VDOT AND THE PROJECT MANAGER. CONTRACTOR'S FAILURE TO SO NOTIFY AND COORDINATE WITH PROPERTY OWNERS AND/OR THE PROJECT MANAGER MAY RESULT IN DELAYS. 3. CONTRACTOR SHALL, AT THEIR EXPENSE, MAINTAIN THE WORK SITE IN A CLEAN AND ORDERLY APPEARANCE AT ALL TIMES. ALL DEBRIS AND SURPLUS MATERIAL COLLECTED SHALL BE DISPOSED OF OFF THE WORK SITE BY CONTRACTOR, AT THEIR EXPENSE. 4. EXISTING LAWNS TREES SHRUBS FENCES UTILITIES CULVERTS WALLS WALKS DRIVEWAYS POLES SIGNS RIGHT-OF-WAY MONUMENTS, MAILBOXES AND THE LIKE SHALL BE PROTECTED FROM DAMAGE DURING THE WORK. ANY DAMAGE CAUSED TO SUCH ITEMS SHALL BE REPAIRED OR REPLACED BY CONTRACTOR AT NO ADDITIONAL COST. PROPERTY PINS DISTURBED BY CONTRACTOR THAT ARE NOT SHOWN ON THE PLANS TO BE DISTURBED SHALL BE RESTORED BY A LICENSED SURVEYOR AT CONTRACTOR'S EXPENSE. 5. CONTRACTOR SHALL EMPLOY EROSION CONTROL DEVICES AND METHODS AS REQUIRED TO MEET THE REQUIREMENTS AND INTENT OF THE LOCAL EROSION CONTROL ORDINANCE. CONTRACTOR SHALL PROVIDE THE NECESSARY DIVERSION DITCHES, DIKES OR TEMPORARY CULVERTS REQUIRED TO PREVENT MUD AND DEBRIS FROM BEING WASHED ONTO THE STREETS OR PROPERTY. CONTRACTOR'S VEHICLES SHALL BE KEPT CLEAN TO PREVENT MUD OR DUST FROM BEING DEPOSITED ON STREETS. NO AREA SHALL BE LEFT DENUDED FOR MORE THAN SEVEN (7) CALENDAR DAYS. VEGETATION 1. PRIOR TO REMOVING ANY VEGETATION, CONTRACTOR SHALL MEET WITH THE PROPERTY OWNERS AND THE PROJECT MANAGER TO REVIEW THE LIMITS OF CONSTRUCTION AND OBTAIN PERMISSION TO REMOVE VEGETATION REQUIRED TO DO THE WORK. 2. TREE AND PLANT ROOTS OR BRANCHES THAT MAY INTERFERE WITH THE WORK SHALL BE TRIMMED OR CUT ONLY WITH THE APPROVAL OF THE PROJECT MANAGER. ANY TREES OR PLANTS WHICH ARE SHOWN TO REMAIN THAT DO NOT INTERFERE WITH THE WORK, BUT ARE DAMAGED BY CONTRACTOR OR HIS SUBCONTRACTORS, SHALL BE REPAIRED OR REPLACED BY CONTRACTOR AT NO ADDITIONAL COST. 3. CONTRACTOR SHALL CLEAN UP, RESTORE, SEED AND MAINTAIN ALL DISTURBED AREAS IMMEDIATELY UPON COMPLETION OF WORK ON EACH SITE. TOPSOIL, SEED, FERTILIZER AND MULCH SHALL BE PLACED IN ACCORDANCE WITH ESC AUTHORITY STANDARDS ON ALL DISTURBED AREAS. A PERMANENT STAND OF GRASS ADEQUATE TO PREVENT EROSION SHALL BE ESTABLISHED PRIOR TO FINAL ACCEPTANCE. 4. THE ACT OF RESEEDING SHALL NOT QUALIFY AS "STABILIZED". THE CONTRACTOR SHALL BE RESPONSIBLE TO ESTABLISH VEGETATION, NOT SIMPLY APPLY SEED AND MATERIALS. GENERAL CONSTRUCTION NOTES 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS),THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. B. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER DEBRIS. 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF THE CODE OF ALBEMARLE. 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:00 AM TO 9:00 PM. 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAT MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE. 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACILITIES, WHERE APPLICABLE, ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80 LBS/10OSF. ALTERNATIVES ARE SUBJECT TO BE APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90 LBS/1000SF. INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT 1000 LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 180 LEIS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0-5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 80 LBS/100SF. ALTERNATIVES ARE SUBJECT TO BE APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. CONTRACTOR SHALL KEEP ACCURATE RECORDS OF ANY CHANGES SUBSTITUTIONS ALTERATIONS VARIATIONS OR UNUSUAL CONDITIONS ENCOUNTERED OR IMPLEMENTED WHILE ENGAGED ON THIS PROJECT. THESE RECORDS SHALL BE IN THE FORM OF REDLINES". 'REDLINES" SHALL REFER TO THE CONTRACTOR'S HAND ANNOTATIONS USING RED COLORED PEN/PENCIL TO DEPICT ACTUAL CHANGE, SUBSTITUTION, OR CONDITION. PRIOR TO CONTRACTOR REQUESTING PARTIAL OR FULL PAYMENT, CONTRACTOR SHALL PROVIDE THE OWNER WITH AN UP-TO-DATE CONTRACTOR'S RECORD DRAWING. SPECIFICALLY, THIS SET OF PLANS, ISSUED TO THE CONTRACTOR AS FINAL CONSTRUCTION DRAWINGS, SHALL BEAR THE REDLINE" MARKINGS LISTED BELOW AS WELL AS THE CONTRACTOR (AGENT OR SUPERINTENDENT) SIGNATURE AND CERTIFICATION BELOW: 1. REDLINES SHOULD ALWAYS BE ACCURATE NEAT, LEGIBLE, DATED AND REASONABLY SCALED. 2. ADD LARGE RED LETTERS TO TITLE SHEET WITH 'CONTRACTOR'S RECORD DRAWING' INCLUDING CONTRACTOR'S NAME, DATE, AND OTHER RELEVANT INFORMATION 3. CONTRACTOR'S REPRESENTATIVE OR SUPERINTENDENT SHALL INITIAL EACH SHEET. IF A SHEET HAS NOT BEEN CHANGED AT ALL OR NO MARK HAS BEEN ADDED LABEL THE SHEET ONLY 'NO CHANGES' 4. IF A SHEET HAS BEEN CHANGED OR MODIFICATIONS HAVE BEEN ADDED, LABEL IT 'REVISED' 5. USE WRITTEN EXPLANATION TO DESCRIBE CHANGES. REFER TO SPECIFIC ACTIONS INSTEAD OF REFERENCING CHANGE ORDER NUMBERS OR RELATED DOCUMENTS 6. USE CLEAR LETTERING 7. NEVER REMOVE OLD VALUES OR DETAILS, JUST REDLINE OR "X" THROUGH THEM. IF THERE IS NO ROOM FOR THE NEW VALUE YOU CAN GO TO THE SIDE AND REDLINE THE REPLACEMENT VALUE. 8. PROVIDE THE REDLINE DETAILS OF CHANGES OR ADDITIONAL INFORMATION INCLUDING BUT NOT LIMITED TO FABRICATION, ERECTION, INSTALLATION, LOCATION, SIZING, MATERIAL, DIMENSION, ADDITIONS, RELOCATIONS, SUBSTITUTIONS ETC 9. BE SPECIFIC WHEN MAKING NOTES TO UNDERGROUND UTILITIES, SHOWING EXACT LOCATION, DEPTH, AND MATERIAL USED (EXAMPLE: SEWER LATERALS) 10. PROVIDE ALL NECESSARY INFORMATION OF CONTRACTOR'S DESIGNED SYSTEMS OR SUBSTITUTIONS 11. CROSS OUT ANY PLAN REFERENCE TO "APPROVED EQUAL" AND REPLACE WITH ANY SPECIFIC INFORMATION OF VARIANCE USED DURING THE CONSTRUCTION PROCESS 12. ANY CHANGES IN INVERT ELEVATIONS, GRADE MODIFICATIONS, SLOPES, AND RELATED INFORMATION ON PIPING UTILITIES, EARTHWORK, ETC. SHALL BE REDLINED. 13. RECORD ALL UNEXPECTED OBSTRUCTIONS, COMPLICATING FACTORS, UNSUITABLE CONDITIONS FOUND IN THE PROJECT AREA INCLUDING ROCK, UNUSUAL TOPSOIL CONDITIONS, BURIED DEBRIS, ETC. 14. ATTACH OR INCLUDE ANY SHOW DRAWINGS OR SUPPLEMENTAL INFORMATION TO THE CONTRACTOR'S RECORD DRAWING 15. CHANGES MADE AS A RESULT OF ANY REGULATORY OR OWNER INSPECTION PROCESS CERTIFICATION STATEMENT: THIS HAND -MARKED SET OF DRAWINGS HAS BEEN REDLINED" TO PROVIDE ACCURATE DETAILED RECORD OF ANY SUBSTANTIVE CHANGES TO THE APPROVED DESIGN DRAWINGS. ANY ITEM NOT 'REDLINED" ON THIS PLAN SET OR SUBSEQUENT PAGES SHOULD BE CONSIDERED TO BE "CONSTRUCTED IN ACCORDANCE WITH THE DESIGN AS SHOWN". NAME, TITLE, & DATE FOR: (CONTRACTOR) A zU o i--1 w w * CO 0 _M U a N O Z z co N O � Y < M V/�] Frn M J <w O cn T �1 ¢ W Z> �4 aU =W ,DO 0,8 0= ¢ 0 D cA O w J 0 WU MQ Er < n < -1Z v U <- U Z CE(A o h.j o F+1 W C3 En O Z N G M v W N W <� z J > 0W UU W a J } (% > O � azW �_ ,./ ° o W w U) Ir rn= rn U z O a s U 0 w a 0 Oz I z 0 a u 0 0 z z ��01TH or pr 1p to '7 y ► Jimmy L Taggart Lie. No. A 22841 ,N *o e&4riONAL E�a`Y- Z < g z a O DOE 0 r > F_ LU O U < w 0 O T � Z J _j w E- m LLI DO � � U < = O CO Ir LL � Q O W w D- H a Z = N 0 E- 2 a_ ( o D- U < fr � P o < w X p O 2 C) Q < w x w Q J w H- w (5 >2 m < 0 O N DE DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JILT DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: Z OF 25 �\ 1 I / I I ! 11 // ///// / - -_-�'/ / -�/ / ---- \ C\ \ \ \ \\ _/ / / IJ / / /J / / ®�� ® 0 - LT / / // / J///� J 1 J I / J // /� --/�-- ZMA PRESERVATION /l / / // /� 1 (/ / / /� /�-\-AREA (TYP) ik2� ,/ //� \ \L \\ \\\ \ \\\ ` / // / // / //// / // 0 /, �I ZMA CONSERVATION / / /- AREA (TYP) el Ir -410� --�-�'ALBEMARLE COUNTY PRESERVED RVEDSLOPES PROPOSED SECONDARY ALBEMARLE COUNTY AC CESS LOCATION \ \' ---- I /- IJ J I I l I I I I I I I I I I / I / / I I / IIl I I I 1 \ l \ G PRESERVED SLOPES- / (TYP) r \\ \\ 43 /�—/ � ®------- — ----'/ ZMA CONSERVATION r TMP E -TMP 62 -7 4 \ \ \ \ AREA (TYP) / / f ./--450' \ \ NIF NEW BN/F NEW BELVEDERE INC qB 51 DB r/ \ \ \ \ \ / ® / ^, / / � � � - - - - - _ f I _ 5193 PG-462_ _ ,<V \ \ - J ® / / , / �' = pry J ( f J ) - -- -- / r \ \ 1 \ 1 \ \ \ \� - / `�> _ / NEW BELVEDERE, INC TMP 62A3-1 � VACANT — \�J7 / ZONING: NMD — ®® 90.78 ACRES ®-z \ _sixv PROPOSED WATERLINE , ' 0 \ Q / \ (l \" 2? V / / �! � �/ \ � �45� \ J� 5 g NO S ° \ \ �� / CONNECTION POINT , 'Vo ' \ BEGIN SIDEWALK \ `\ \ \ /� /1> P�� ® / \ AND CURB CONSTRUCTION -----\ \ \\ \\\ \\ ----- - Id EXISTING SECONDARY ACCESS ' E 5 J I \ \ \\ \� ROAD FRO RELOCATEDROM PERTHISERE /' // // 44 — BEGIN PAVEMENT \ \\ \ \ / / / �/ — - / 450 CONSTRUCTION / 7 \ \\\ \\ / ___-_ � �35 \ � BEGIN SIDEWALK \ \ \ \\ �\ / / / � r \-, �� � � , �`�\ ------ / NS/1° AND CURB \ \\\ \ ® / ,I // �' J // t ~ I OS49»W CONSTRUCTION 440\ 60.7 CURB, GUTTER, & SIDEWALK TO BE \/ / \ \ \ \\ \\ \ l ` \ / J / - L % \ \ / I REMOVED & BUILT DURING \ \ \ \ 1 \ \ \ ZMA CONSERVATION s t ®� \ - \ CONSTRUCTION OF BELVEDERE PHASE \ \ \ \ I I \ AREA (TYP) - 5 SUB-2019-00170 AND NOT INCLUDED AS PART OF THIS PLAN \ \ \ \ \ l 1 I - - ^ \ \ M \ - \ \ -' , / ®\® \ / BM ELEV.= 45.3.%% \ \ \ \ 1 \ 1 I I / \ ` ALBEMARLE COUNTY EXISTING CURB, EXISTING TREELINE \ \ \ \ \ 1 I 1 1 / f \ \ / - \ MANAGED SLOPES 9 GUTTER & �TO BE REMOVED \/ \ C \ \ \ I I I / / \(TYP) Bolt On Hydrant IN ACCORDANCE SIDEWALK TO BE WITH THIS PLAN fill REMOVED & LEGEND REBUILT PER THIS \ PLAN PRESERVATION EASEMENT / \ \ ` SS \=\ \ \ ®\ \ \ \ \I \ 11 1 II \ 1 \\ \ �\ \ \ ALBEMARLE COUNTY DB. 5277 PG 305 is " \ \ \ \ J \I \ I 1 I \ \ z\ \ \I MANAGED SLOPES 1 \ \ / _ ` _ ® ALBEMARLE COUNTY- _ \ \\ / PRESERVED SLOPES ALBEMARLE COUNTY STEEP ® ° \(TYP) SLOPES OVERLAY - MANAGED / in ALBEMARLE COUNTY - - - - - \ PRESERVED SLOPES / FOWLER STREET TO BELVEDERE\\ / (TYP) r ALBEMARLE COUNTY STEEP \ \ \ \ \ \ \ \ ` ( - SLOPES OVERLAY - PRESERVED PHASE 5A DEVELOPMENT. \ ® \ «> ® /� - \ \ \ \ \ \ \ ` \ \ \ \\ / I \ \ N�0 ^ \�\\ �b SUB-2019-00170 \ ® \ TMP 62-16D \ \\ N/ F BELVEDERE LAND HOLDINGS LLC:. \ \ \ \ \ \ \ \ I 1 / \ \ 1\ DB 5088 PC 605 \ ZMA CONSERVATION AREA - - - _ \ I ZMA PRESERVATIN AREA ®® 95 ®® SOIL LINE TYPE \ \ \\ \\\ \ \ \\ \\ \\ \ \\ \ \ \\ \\ 4op (SOIL TYPE) ALBEMARLE COUNTY \\\ \ \ - PRESERVED SLOPES \� \ \ \ \ S - (TYP) \�\ \ !cpi: : \ \ \ \\\ \\\ \\\ \—\/ �) 30 0 30 60 90 SCALE: 1"=30' S2 \ \ \ A zU g V--i w w D m o -rn O Z z�N O(D �Y� M J V] Frn Maw o T �1 Q J = Qyi 00 a� m d Z C) "0 a O co 0 0 0 �Q 12 v U Z0 x°> w0 LL Z 0 jr N V a jr W N w Q w Z J > O va iw a J >_ > _ z w O a0 Wow m= rn O z 0 u U 0 W `a 0 Oz z 0 a u 0 W a 0 0 z SyT//B or o�7ys Jimmy L/Taggart Lie. No. A 22841 ,444 �ore88ZONAL z a Z go O T > o U a T O m 0LL a A O d O a3 W w � Q co z I-- = N O ran w d O Z zfr dui Fr o A 0 o W a a J z w Q v) O m � w O N ¢ DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: 3 OF 25 LEGEND PRESERVATION EASEMENT DB. 5277 PG 305 ALBEMARLE COUNTY STEEP SLOPES OVERLAY -MANAGED ALBEMARLE COUNTY STEEP SLOPES OVERLAY - PRESERVED ZMA CONSERVATION AREA ZMA PRESERVATIN AREA MATCHLINE SHEET 5 95 SOILLINETYPE SOIL TYPE 30 0 30 vFQ-+ 4\I1 /-�\\/\`_ \/-_\\\>�//\/\/�\\ /\\/�em\ / s\/ \�i�\ //\— � �\/\\/\/\ J`— / \\� / \\\—R�®�_\ '/�c\ -Z\\-®.�\ \ \\� \ t\\1\\-\� \®\\\\4\ \ \2\\\\�\\ ® 0\�\\�__\\\ _®\�`�\�\ .\\\��/\\/--�/ /\ \ / /\\ \J1 /�—/P' \\-/ _/ /�\ �/,`/ / �/// i/ \ / \/ /,/ I////\ //�//'/\// //\Yy/r// \%\` //// / ///// //// \ l/)/ \ / /!�/// � /,> // �I� / //o /I I /\/(// ///I/ I/�I / \ /I�\//1// I/ l I /\ I/ �\/'(�///1® I1 \ �I/�/// I\ I� � �///-/l/ / �I l /-�� 1\\ \\ \r I\I � 1\ \\®\�1 \\ \\\\ II\ \\\ I \ \\\II1 \\ \\ \\\\1 f\ \\—\ _l �\�\ \\ .6 \ �t11\_ \ \ \ \t I ��\\\(\1 �\,-\\\ \\`\ ^\O_I �\\J\/ /� __\�\\\ _ \— \-\— �\\ ® _�\ _®\4>2�/ �0-®�-®_- /®\ \,��®/-' _ ®\ _/®��/ -/�// ///-\ - �l // r-\ ///J///�, /f// —// /�®// /•/J / ,//J® '///J//\� 1/ !/I / I /) \/®///\_ l-/ �//J ® - /177 zv I l IfI lII l/ 1 ✓� IS I //R I 6l1/ 0l/ �l ,I Fl1\ � 9p I/ ,0 SCALE: 1"=30' so Z �sO`I I 0 430- PRESERVATION EASEMENT ® DB 5277 PG 305 P000 30 ® T ZMA CONSERVATION AREA TYP r / 40 \_---- INV— -400 400 co 45 !_----- �VV � 6S ----- ALBEMARLE COUNTY 380 MANAGED SLOPES < / N76°0235 W 181.93 \�9� -- _---- 3 - \ �� 62 \ ALBEMARLE COUNTY \ t J \ ��s' 89°O1 p5 t W -- N17/ \ \ — ` \ PRESERVED SLOPES 90 \\\ �\\ --- -- zU o i--1 w w D " m o OZ ZON Op � Y tf)J Hal maw U �1 J = Q T Qyi 00 a� m "0 IL =w a O a5 w 0 0 W OQ¢ a J Z v U Z0 T h�0 ¢_ v �> o h.j w o F+1 LL w Z 0 i N V a_ V w N w Q Z J > O vaiw a J } > _ z w O a0 .u/ CU O W w Ua rn= rn U z 0 u U 0 w a 0 Oz z 0 o_ 0 w a 0 0 z �SyT//B or o�7ys Jimmy L/Taggart Lie. No. A 22841 ,444 �o e88ZONAL z a Z go 0 O T > z U Ir �1�� T N m Q A Ir O d O a3 w w 06 Q Q z co d w = N O M : � w d O z z� <c�n o A 0 � o W a a J i- z LL w Q co O m � w O Ir DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: 4 OF 25 DO PRESERVATION EASEMENT' DB 5277 PG 305- --- // / 39000 Y -\ -420 _ -420^ _ZMA PRESERVATION— /' / _--- -- AREA (TYP) LEGEND J �I 0 0 0 0 95 (SOIL TYPE) \ , / / / / / // / / / / _ _ — \ \_------- — — — _ SCALE: 1"=30' t' -0-0 PRESERVATION EASEMENT DB. 5277 PG 305 ALBEMARLE COUNTY STEEP SLOPES OVERLAY -MANAGED ALBEMARLE COUNTY STEEP SLOPES OVERLAY - PRESERVED ZMA CONSERVATION AREA ZMA PRESERVATIN AREA SOIL LINE TYPE — PRESERVED SLOPES l , -410 /* ALBEMARLE COUNTY 0 / \ I MANAGED SLOPES r we so Z /r r _ / / II 2 I \� \\\ \\ \\ \ ® \` /> 1 440 MATCHLINE SHEET 4 U o w w m o OZ zW O (D Y M tf)J Hat Maw U Q T J = �y OO ¢u CD"0 aZ =w a O co w 0 0 O �Q Er J Z v U ZO CE h.j w o F+1 LL W Z O i N V a¢ ° z W N w Q Z J > O vaiw a co F-r J >- > =ocn Oaz� ,./ S o W w � Q If rn U z 0 u U w a 0 Oz z 0 a u 0 w a 0 0 z n re88taliALz a z go 5 O T � z 0 a T 0 O m 5 Q A O d O a3 LL w W �QQz Z = N O con w � d O Z zfr dui Fr o p <FD A -j o W a �' a J z W Q � o m � w 0 O DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: 5 OF 25 \ \ 1 \ \ \ \ \\ \\ \ \\ \\ \\ \\ \\1`1P`�Ej.48w'PG L / / � / / �/� ��� /�I / / / � i � \\ �\ / // / / / // _��--'\_-- \� \\moo \\\ \ \\ / / / l / / / / / / o \ \ \\ \ \\ o \ / \ V,\,� NS. 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No. A 22841 b4 �o�eeetoxet E�a� Z Q z IL Ir 0 r > Lu r" z u Ir W z O w m a m U Q o Q Ir 0 z wW a- >_ 06 Q Q z a z N 0 0 w _. F c� W o_ 0 0 Z� �� c) Q W x o z C) O W Q g o W 04 H W W m Q 0 0 (A 0' DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: 8 OF 25 - - - - xll fv J/ / / /�i--- `�/�_--___—_�—✓///'/ �� —_—%------- �_ �0 /T \ \\\\ \ \\\\ \ y\ \ lII L / / — — — (�E ONO r�p►Ci / /' /' \ \ \ \ \ \ \ \\ \ \\ \ \ \ \ \ \ \ \\ \ \ yl�-f�/ �',;',/ / / _ — / — _-_\�-- \\\`\\ �\���� klo \ / $N * AQpE / / -•- --'_� __� -� _ // / / ' � 1 \ \ 1 I I I I I I I I I I I I III \ 1 \ 1 r ///�/ � /' /' / __ y_-H�_. _ \ \ \\\\\\ \ \\ / p�•C�`��'KEf4 l\NEIl���> 'I II Il I I III I 1 II I I I I II { �-//� �' � / pppSEO S WA p• // / / X� �� 1 1 1 I I 1 I I 1 I I I IIII I �// $F 1�� S\GN 1pR / I I \ 1 I 1 I I / � $F R \ NP�X0Q�E O{`1 p► / / / - _ - - \ _ \ \ \�\\ \� � $E / l ( I I / � / 1$ �/------ � � \ I cl I I 1 1 1' I I I I I I I I I 1 1 1 1\ �QP►Dp / /,// // - -_,- __-- \--~\ \\ � 0— —X— � 12 \ \ 1 � � /1 / / /,/ ,' �-p•'/ / _/------------ -- \ \ \ \ \\�1 \ \ \ 1 11 I \\\ \ 1 I 1 I 1 1 1\ -- / //','/i'/' �i' % i'// /'/ � p�{`1A r'$"AG__ \I \ to ------_-- \ \ \ \ \ \. ,III, 1 ,• yR�' r -- -\\ \` \ \ \\0\ , 1 1 I 1 Il f / / ,_/__--- --\� \ \ I \ 1 1 1 \ 1 1 1 I I 1 I I I I \ \ /// // / /�/ / / / / / / / � \ ♦ 1 1 / 1 / ' �pp�Np►�' Ag pC / /�+`' $�et;1 • J / / . \ \ \ \ I x 1 ( \ I I 1 \ \ \ \ \ \ \ OSEp P� \NEp• r � r 1 / Mp\NZP AS E \S EO S\-Op S pg\Ul CE• � ( / pS\S\`1E gE S �RgpN ! 01- SNPV- \N p\S J / r FE 'KEEp / p S S SN / p SP FRS �p P� pWNi / / p fE \4 A \CPa- F� / / � U. 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No. A 22841 ,644 �oe88t01iAL z Q z EL Ir O r > F- Lu z U O T Q z O w a O m LLB CO uj Q I O a ° z w LIJ D_ > a � Q Q z w O CD Q4 z z o Q W X p CD Q Q Q a W> W a J w m Lu O 0 0 DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: 9 OF 25 \ \\ r //' // ,-/!/ ) I\I\ Ill\ /ji_� _ _ - =�-�-� //!II/1 \� ✓�i/ fir i\,,\ �a 1 Ivy (IN Frl \ / / �/ //-//// ) l 1 )) \_ —r/ / ////J/ �/ �/ //// / J\ \\''!/ / / STR✓ R r / /! 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( \NN \ \v �`*A''!•`• — r �, ` \ \ - / / / � \ \ \ \ \ I \ r r '9J DRAINAGE DIVIDE (TYP) 10�pf \ \\ \ / \ \ DMNACE MR To 5F.259 OF SF TA DOES SECRON .1097 6 roa NOT EXCEED o.zs Ac PFR /^ , � - - - - I�iLTl -AJi3- 6 \ qq\ \ \ \\\\\�� ��\\�\\\\\ \ `\\',�'`\\�`(\vim\ \\\\ r/ � �' /-�- � i'\ \`- \1.=_ --\ —,_�_ `_ -�- �%� �// �i/i / / /\ �• // / ///! // / 5VR'452 \F \ \\\ \\\ \\ \\\\�\\�� �� ��_— �~�.— �\ \ _-----�--'\—._���� /f �j �� /%!% / 15 ✓� JJ���/�!///!//!�//!///! sva.45o \ \ \\ \ \ \\\\��\\\��\���\\\\\f \ \ \\ \ \ \\ \ \ \\\\�\\ \ \ \ \ \\ \\\ \\ _-42D — \\ \ Illl�lllllllll I11 \!/\/ /// Il)Il�llio ��j� P o 7U7 F� W ' o U - O N O Z U`o Z JY� n J <w O Qo = UU a� w m y "0 0 (n O U �Q Q Z v U C7 Z L7 O - o V wZ o x 0 > � o a w � Q N N W Z O J LLl U n > = a J =mow O, a Z or P Q P U DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT o{�$SyTs of 130 r Jimmy L. Taggart Lie. No. A 22841 �o'SgBr0NA1 Q ] z O T > =Y w 'U �OT2< J j m _j w m M Q w iW o_} o 04 a a D O � W W Q 0 Q w m Q O DATE: 02-15-2021 SCALE: 1 ":60' JOB: 8438 SHEET: 10 OF 25 \�\ \I 1 � I / I I � // ///'/' / �N`NG � /_ ��--__/�'J / i`NE�� ��/'� � �-----�� � \ � / / \ _ \\ 1 / / / / Sf-1qIa 4Rlf 'j— p PER ANGGS\ XCEE RECEOp�SNOSE J I I I —/ \ I I I— --_ _ I \ \ \� \\ ✓ l / t \� r NCE, �-4 \ 0 ' �/ / � � / \ \ \ / / —' •� fE KIP / Gp1S W N ARO / / / / GREA�R TMTMN ow \OS�j O p 1\NGR AO 1E51 � ,\ RTMAR � I _ 1 / o�A jpj 6.1,91 \\ \ \ \\ \\ \\\ \ \\\\ \\ // // \ — — PR0?00 SOO-MPN A\NEpS \ \ \ \ \ �> p00s.5A�BNDAS�RBANCE gER RS\ SAP � �{0` vk) NTAgsAlf0R A I i J _ I ' I � / 1> �\ r� / / DRAINAGE DIVIDE (TYP) ��'`CAI \ >� �` F` \\ _\ �\ \ i L// � \ 1 , � � v v v / ,L-� v — / ♦ ) / -/ _�- _--\ / /ter-. DID J r 1 \ \ \ \ \ \ p►i 'pROp0GNS WtipRO 00 \ BM KEV.=453.77-- / Right Front Bonnet Bolton HydrantPV-jB SS pi SAR MW�NANCEIER OTMER I / r r \ \ \ � P Np C0 1 k k\ \ \ GR00 EROSION CONTROL MEASURES LEGEND 3.02 ENCTRANCETION / 3.05 SILT FENCE SF STORM DRAIN n FO%/i,� 3.07 INLET PROTECTION IP I � I 3.08 PROTECTION CULVERT LET CIP �� ❑ TEMPORARY 3.09 O }� DIVERSION DIKE DD 3.13 SEDIMENT TRAP ST 3.14 SEDIMENT BASIN SB 3.18 OUTLET PROTECTION OP 3.31 TEMPORARY SEEDING TS ---o-- 3.32 P SE EDNNG T PS Ps 3.35 MULCHING 3.38 TREE PRESERVATION F33 8] AND PROTECTION 3.05 SUPER SILT FENCE SSF SCALE: 1 "=30' .e / r \f AN 00 / 34 �•jp©/ \ \ \\ \\ \ \\ \ \' Z r i m r 7U7 g F� w w O Z zw om :::iY110 � J Q aaw Q T J = LL �y OU aU m "0 it = w a u) w 0 0 W UQ �¢ 0 a J Z v U zir ir Lu, N w (7 � Ir o aw N w a z J > O va w a J } n > =Zw z O a �/ 00 O 04 w m= rn U z 0 F- L a 0 w a 0 O z Z a uu 0 w a 0 0 Z o 4*1;6TH Op )>t Jimmy L. Taggart Uc. No. 22841 bra d�a�d88701iAL g Q z a O 0 J T O � Lu � z U Ir w T Q vn z O w m a O m U Q O Q O W Lu LL z z Q Qc\I o a a Cc O Q4 o LLI D- ° o z� <� c� Q Q X E �O w LLI Q < o Lu a Q J � w M Q O O � Ir DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT DATE: 02-15-2021 SCALE: 1 "=30' JOB: 8438 SHEET: 1 1 OF 25 Ir/ kL MATCHUNE SHEET 13 ll l - _ � I'll, N 30 0 30 60 90 O ! /� \ \ \ �\ (fin(/j) •�S 1 \ \ \� \ \ I I I I \ 1 / l \ \ 1 SCALE: 1"=30' Z SHWU Nr \NSA\NED \ \ a F 9y I ( \ I �E \S MP lE0 PS q �cz T \ 1 I I I I \ S\ OP gSpg\U CE. \ o y� I I I 1 1 W g\S�RgI`N -9p� I I I X FMRSS SEEP PLL SNOYMi l \ 1 I I I you `� I I I P FOR J I 4y° I I I -1 \ 1DRAINAGE DIVIDE (TYP) ow � M4� 1\ DRAINAGE AREA TO SF=2.59 AC _ \ _ RECEIVING SECTION OF SF=1097 LF \ \ \ \ rDA DOES NOT EXCEED 0.25 AC PER 100 LF r // 7/1 i DISTURBAN6[=(ls 2b REr \ \\ \\ \\ l au - - - - - - -- r'-' --—' _ 1/���� /^� N. ---- \—\ \\ \\ \11 \\ \ / I/ i / \\—\ ✓ / 'per / / ///, i� / ' ///'— // r / / / / / / / \\ ----- � A U o m w ^ �o OZ zUN 00 � Y> M tf)J CA H 01 M Q w U �1 J = Q T Qyyi OU ¢� m "o aZ =W a O a5 w 0 0 W 0< a J Z v U Z� w( N w(5 LL Z O i N V a_ ¢ 7 W N W Q � Z J > O vaiw a J } > _ z w O a0 .u/ CU O W w UQ m= rn U z 0 u U an w a 0 O z 0 0 a I 0 w a 0 0 z SyT/Bg/0'p Jimmy LTaggart Lie. No. A 22841 ,444 �O,e88ZONAL z Q z EL Ir O r > F- LU � z (� I w T Q z O J m a O m U Q O Q O W LU 0 } � Q Q j a c G O P4 C7 LU o_ ° o zU a LU x o z WLU Q < O Q W L W LU m Q O F- O N GE DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JILT DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: 12 OF 25 T T W Z H N. ----- --J- pUZBESCE`1EGE RTMpNtC� \ / / / \. // , J/ ,�D� I I I I I I I I I I I III 1 ) 1 1 �/ /i' /�' i' /'�/ /--_\`� \\\\\\\\�\�\\\\�\�\ /-- SPS1 \NG•KR / \ \�EEI\NE II l I I I I I I I I I I I I 1 �// / //// / , _/ \ \\ \ ,/ /:; , — _ \ \\ \ \ pG ( 1 1 I l 1 I I I I I I I I 1 \ � /' / / / / / / DRAINAGE AREA TO SF=1.14 AC � — � \ \ \ \ \\ �\\\\\ \\\ \ 4 I I I I I / / \\ \ ,\p0 DE \ I I I RECEIVING SECTION OF SF=678 LF pREpjO OF SF,S pOP 1\ I I I I 1 1 II I I I I I I I 1 1 \ / /// ' ��//� . l I I / DA DOES NOT EXCEED 0.25 AC PER 100 LF \ \ \ \\ \\ p\NAGE 56C�ON EO 0.25 - / -DLO i r - - - \ ES GREATER THAN 31 MUST BE STABILIZED WITH LOW , \ \ \ / / / / MAINTENANCE VEGETATIVE \ \ / /� GROUND COVER OTHER THAN GRASS / / \ \ \ \ \ � \ \ \ \ , / Dom' • 1.5p ZO �' OSED s'. QROP S\GNS OD , / f A OpOSP S\AO \lAlp\NED, /I 1 // / ( / / P►�"/ / ) 1 \ \ \ ~ \ \ \ \ \ \ Q / �pCZOR E \S Mp lED p 1 \ \ \ \ \ \ \ ' / i /I , / / / I / �• 1 •:� P►C n C�pS\�\� S\.OPgE S'(pB\ RgpNCE. \ � \ - - I / •� 7"' BMSH-p\ND�ONM)\�1/ /// ( pF\RCp`FpR / 'DRAINAGE DIVIDE (TYP) 1 I f I/ . -45a_ �X J If svou GRV K �TM \.CW DD ONCE, P — PRN\NG•KER - I / / r-/ p�MG Y �oQ cob f j j \ \) I I M jBNpNGtr`�OSHE TMpN \\ \\ \ \ \ \\\\ \ \\\\\\\ 1\\ Vw- \\\\\ /r \ �d EROSION CONTROL MEASURES LEGEND 3.02 CE CONSTRUCTION ENTRANCE 3.05 SF SILT FENCE 3.07 IP STORM DRAIN INLET PROTECTION 3.08 CIP CULVERT INLET PROTECTION 3.09 TEMPORARY DIVERSION DIKE 3.13 SEDIMENT TRAP ST 3.14 SEDIMENTBASIN SB 3.18 OUTLET PROTECTION OP 3.31 TEMPORARY SEED NG TS - �- 3.32 P S EDIING T PS - Cr- 3.35 MULCHING MU 3.38 TREE PRESERVATION�- AND PROTECTION 3.05 SUPER SILT FENCE SSF / \ J I FENCE.KRRQ pNOP \ 1 I \ \ 1 t It I I MATCHLINE SHEET 12 ., A U o m w ^ �o OZ z�N Om �Y� tf)J r H0) maw U T Qyyi 00 ¢� m "o aZ =W a O a5 w 0 0 U �Q 12 v U zU w0 N wU LL Z O i N V d (r V W N W Q� z a J > O iw a J > > v ^ _mo0 w V azw °0 w �Q m= rn U z 0 u U 0 w a 0 oz 0 0 a I 0 w a 0 0 z Jimmy L/Taggart Lie. No. A 22841 44 �o�eeetoxet E�a�� z g z IL 0 O r > w Lu � z U w T Q z O J m a O m U Q O Q O III Lu o > 06 Q Q j a 2 a- ° a (3W <° o z � < � U Q w X p z w� Q< O g W W Lu m Q O 0 0 DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: 13 OF 25 I — / / /'-/—/ � _ ..- _ _ ^- '_' `\ _— _=�4 -• 1— II I / 1 / \ �\�/ 1 /' �.r � \> \ � � `f Lam\ ,i-v _ / / /'_// / � / / 1 i 1 \ 11 1 .-_ i /'j � ' /%=--'' _-- � — � _�=��� � --_ � `.—`- ��Ji I , 1 I r \ ` / /\\\\ \`\ I 1l �o ✓ < )rN�13 _r/ / / 1/ //-//// ) ! 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( J� \ a \ \ I 1 t I I 1 \ t t 1 \l / / J o/ � ►J" � ' T \ \ � - ® •B 1 � , I ;' 4 \ \ 1 I I I ; I � , ! � ' � 1 I I (,'/ / , f r BMELEV.e453.77 \k \ \ \ \ \ �J ( \ ✓ / / I / �` /' / ' 4 \ ( 1 \(\\ \1 i I) \ / )ZJ RIoh1 Front Borviet Bon on Hydrant J \. � \\ /\\ t \ \ 11 I / \,\ \ / ._ '` —X i// \ \ \� /, ///_/ / _ ts/ I I i \\\, < \II\1ir l�\�,, y / j/r (Y ✓ WAS RACK &EQUIPMENT/VEHICLE WASHING \ \/ \\ ( I \ i - \ y "\ \\ \ \ \` P //' J,✓ .�• -- .� -. n- 1 1 \ \ �\ (� �II ! 1/, / \ SPILL CONTAINMENT AREA // \ / \':w'�- ...\ v. (� \r-'--� /-'// i�i - .. -/-' ) i I I s r �.NI I 1 � \ /✓J _ _ l //, -\\ > , \\ o� / - /ICI I / //ram \ III ' \ LEGEND \\ \ s �\ / ,<' \ \ \ // / /! J/ u I //����\\`N PRESERVATION EASEMENT \ / / e t / /� \\ \ ` �\ \ \ \ DB. 5277 PG 305 \ \ I \ — — / !. r t \ \ — ~ — ! ® / (/ / /////\\\ \ \\ ALBEMARLE COUNTY STEEP SLOPES OVERLAY -MANAGED \ .p L' 152 \ _ � f •^ / r 5 x\ �\\\\ assraauoxn\\\ \\ ALBEMARLE COUNTY STEEP uumoa c fc�ramc k — — \ arouxo coara onex TMµ V VA V / SLOPESOVERLAY- PRESERVED \\\ \\ ZMA CONSERVATION AREA y�.asc \ \� \\\ \\\ \\\\\\ �\\\\�\ `\\ —� _ `/� / \ \ w _ — _ —' i//i' // // / / 1 f /! ZMA PRESERVATIN AREA 59 \\ \ \ti � \ \\ \ \�� �\ \\\\\\\\\\�\ \\ \\ _` > \� /\ r r �L—J/ / Jl) ✓ ///////// /// // //// / . ® ® SOIL LINE TYPE95 SOILTYPE 60 0 60 120 180 SCALE: 1"=60' \ �\ \\\\\\\\\_ f \ ( I 1 I I l I I li I Illl I (Io r /// //�/ / ) Lj/,�/�\`/ P o zU w ^ �o U d N O Z O'o Z JY� cn i= rn < Ld ou Q J = UU a� W m y �v p o U �Q Q Z v U V O 5 o ^ In wu o x a> ^ � o a w 0 Q N N a w Z O J > w U n > = a J_ =zw O, a O o Q••1/ w � cn a P U z 0 d u 0 0 Ld 5 �z 0 a N w 0 0 z DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT o{�$syTs of pf�� r Jimmy L. Taggart Lie. No. A 22841 44 ,#o1SgBrONAL Q ] z O T > =Y w U )OTC J j co _j m M Q o w iW o_} 04 SQaz C) =) O O C,', W LE i a W Q 0 w J Q � w J m � J O DATE: 02-15-2021 SCALE: 1 ":60' JOB: 8438 SHEET: 14 OF 25 \I ///\\ \ \ N pW/9 (7�_ _ _ — _ — / �� _ f / / / // —\—_/ /i/ \`//\\` \\\ Is \ /S \ / '•i / e' // / 5 \ • _ °..•�_ /. / �s. -// 1 .• 1��� \ \ \-J- \ \ h i e• `r P�/ _ OG �, 0—, L 5 S SANITA SEWER 5 s s—s—s—s—s—s—s—s s 0111 _ `p / n. a /' is /: I ♦ �`jG \\\\ / \ \\ / \ / / J // // r-//--= —\ / \-\`` J' � — / ° F� BM ELEV.= 453.77 Right Front Bonnetoo / Bolt on Hydrant X�X // \\ \ II \ I 1 I \ I �y ° J +tee �• \X\X \\ \\\ \ \ 1 \1 � 1 \\ \ I\\ I\\ \\ � - �\ :�� \� .- / /\\ FROSIONrnNTRAI MFASIIRFR IFC,FNn 3.02 ENTRANCE CE 3,05 SILT FENCE SF STORM DRAIN O 3.07 INLET PROTECTION IP 3.08 CULVERT PROTECTION LET CIP 3.09TEMPORARY DIVERSION DIKE DD . 3.13 SEDIMENT TRAP ST 3.14 SEBASIN DIMENT SB 3.18 OUTLET PROTECTION OP 3.31 TEMPORARY SEEDING TS -- 3.32 P T SEEDING 3.35 MULCHING MU 3.38 TREE PRESERVATION�- AND PROTECTION 3.05 SUPER SILT FENCE SSF SCALE: 1 "=30' aL 0 M NNIN Le I � Ex EDIWIR \ Ne S ye �J 1?1 \ ALL SLOPES GREATER THAN 3:1 453 \ \\\ \ MUST BE STABILIZED WITH LOW 5�8 \ MAINTENANCE VEGETATIVE \\ \ \ \\ \ \ \\ \ GROUND COVER OTHER THAN GRASS 1 \ F— L 41 U o m W -M U ° z zN OO(D --::iY> J QU) 2JU r r J = 0 uat m W pm ¢o 0 z JZ vU z� w� N w (7 Vi O z N Q 0_ ° v NI N W Q V% Z J > 0 v Lu J a J } U) i =C)w a O OJ W ,J)Q M U z 0 a L) U w 0 W Q y � Oz z 0 a it U 0 W Q 0 0 z 1 0 )7 ► Jimmy L.Taggart Ue. No. 22841 44 A$o��88roxel Q z a O �_ O T > Ir i Y J co o U a T ZJ _jw x O m LLI ro a U O Ir Q O I W w D_ > i-<06 <5 a a a O 04 C5 W < Fr 0 z� �� c� H Q Q x o cr W ~ Q CO W04 Lu Q� � w IMIr Q O 2 O Ir DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: 15 OF 25 T W W \\ \\ \ \\ \\ \\ \\ \ \\ \ \\ \ \ \\ \\ \ kL MATCHLINE SHEET 17 6FDISTURBAN6E-(1a_2gAE� Ji / / /yid i EROSION CONTROL MEASURES LEGEND 3.02 OTION TRANCE ENCE 3.05 SILT FENCE SF STORM DRAIN 3.07 INLET PROTECTIONCULVET IP 3.08 PROTECTIONLET CIP 3.09 DIVERSION DIKE DD SEEDING 3.13 SEDIMENT TRAP ST 3.14 SEDIMENT BASIN SB 3.18 PROTECTION OP 3.31 TEMPORARY ESEE D NG Y TS ---�- 3.32 P SCALE: 1"=30' A U o m w ^ �o OZ z�N 00 � Y> M tf)J rA H 01 M a w U �1 = J Q T Qyyi 00 a� m "o a Z a5 wC) a oo 0 W UQ Ir a 12 v U Z� T h�0 ¢_ v �> o xw w(5 V] OIr Z N d (r V w N W Q� z J > O vaiw a J } > _ z w O azF- .u/ CU O w W �a m= rn U z 0 u U 0 a 0 O z z 0 a 0 w a 0 0 z �o;��SyT/B�Op erg ` � lNU low Jimmy L Taggart Lie. No. A 22841 ,4d# �Ore88t01iAL 141ON g Q z IL O Ir O r > F- Lu cD z (� Ir w T Q z O J m a O m U Q O Co Ir w Q O Ir D_> Q Q j a c a G O P4 (� LU o_ ° o zU a Lu X o z w� Q< o Q Lu � W Lu m Q O F- O N DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT TEMPORARY DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: 16 OF 25 I \ \__/ / / / /ice i' i-'_ - _---� \`� \ \ \\\ \ \ \\ \\\ \ \♦\ \\` 00 I J/ \Ol \ U \ \ \\ \ d xw IE \\ \ \ \ \ II / J/, /'/ / \� \ \\ \�\\ \\ \ \\ l \ \ \\ SCALE: 1"=30' Q v U \� \\ Q O — \\ \ \ / \ \\\ EROSION CONTROL MEASURES LEGEND x LL Z / / / / / _ / \ \ \ 1 I 1 \ \ \ \ 1 1 \ \ 1 (_ / / / — — \ \ \ \ \ \ \ ❑ CONSTRUCTION O a ¢ N LLI I1 I I 1 ENTRANCE a z w \\\\\\\\\\\\\\\ \\\\\\\\ \\ \\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\ \\\\\\ \\ \\\\\ \; \ \\♦\\ \\\\\ \ \ \ \\\ \\ \ \\\\ \ \\ \ ❑❑❑.. SILT FENCE OOODD o0 H U) co co� STORM DRAIN >W f_ PROTECTION N. SW wa'aU) III 1I 0PCULVERT INLET PROTECTIONIE — ----- TEMPORARY \\\\ DIVERSION DIKE3.09W \NN SEDIMENT TRAP ST _— _ \ \ t 318 SEDIMENT OP BASIN ®o\ \\\\ \� OUTLET \♦\ PROTECTION w TEMPORARY::] MPORA Y TS - �- / \\\ \ \ \\� \\\\\\\\ \\\ \ \\\ "\ \ \\ 3.32 PERMENANT \ \\ \ \ ♦ ❑ SEEDING O \ 1 \ w \f 1\\\ 11\\ \\\\ \\ \\ F \ MULCHING�- \ 1 \ 0\\\\ \ \\ \ \ \\ 3.38 TREE DPPROTECTAIO0 \\\\\ \\\ \+\ ,,� •.,',/ f_ _ / ----_\ \\ 1\ \ \ \ ` 11 ) 11 i � �\\I � I\ 1 �\\\`, / / / / / / l / / / � i 1 J // f/ � // // // % /I I � IIII I\ II 1\, \\1\�1\�1 SUPER SILT FENCE SSF Z o `\A\\ \ \\\\\ 1 a p%\\\ 1\\\\I\ \\ \ 1A\ ll \ 1 — _ — \ \ \ \ \ \ / / / j / .• I ' / / / / ty J I-/ / / 1 r ) 1 \ \ \ ,\\ \\ \ \ \\ \\ \ \ \ /^ \\11\ \\ \\ \ \\ I / j r ' / / //' /' / IJ / / ) I Il\\III\ \111 \ \ s s \ y Q \ e t:1,TK or IL - / y\ \ � \ � � \� <ZYPI\\ \\ ` \\ �\ "'.. ., � • \S i II � / � / 1 r � / r � I /J � ) I ( //� / // // Imo/ r Y Taggart y \ \ \ \ _ / / / / / / I \ \ 1 \ l \ 1 \ \ / ✓ �/ / I I I \ \ \ \ Jimmy o \ I .���__\ \\ \ \\ \ \1 —\\ / S I { I / % I / / I 1 \ \ \ \ \ I I \ } / r/ �/ III 1 ✓ \ \ A6 22e41 or .� yl�X\ \\\ \ a\ \ \ \\ \\ \\ \\ \ _\\—\ )S J r / / / r \\ \\ \ ;\\ ,1 1 I / // // �/ J \ \ \ \\ \ I I 1 \ IL -i O 0 .TOPSOIL I I I / / - / OO ---- \ \ \ \ \ \ \ \ \ \\ \\\ \ \ .\ \ ) 1 \ z U I w i JOCi x / ) / I 1 \ ) \. \� \ \ \ \ l \ \ 1 \\ \ \ 1\\ \ \`\ \ \ l \ J w x \ $ / I I \ \ \ \ \ \ \ \ I f \ Z I PFl`r.P` I I ) / / / '�, \ \ _ — .�a- \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \` \ \ — 1 ( ) 1 O m w m a \/ "��� / ( I C J I \ \ \ \ \ \ \\\ \\\\ \ \ l \ \ 1 Q Q x x ' r I - ` \ \ \ �\ \ \\\\\\1\\\\\\\1\` \ `�` \�1 \ 1 I l o�III w L M >- I Z = N o a Lf)\ / / \ I I P \ \ 1 \ I \ \ I 1 \ 1 \\\ \ \ \ \ \� \\\\1 ) I 0 Lu Q o r 1 \ \ J \ G \�r �P— \ \ \ \ 1 \ 1 f ) \ 1 \ \ \ \ \ \ \\ �\ \ \ \ \ \ 11 I s —s s —s s —s \ \ I 1 1 \ \ \ \ \ I ` \ / // j 1 Q W X p z H- l \ y\ r Dom' g1 - \ _ \ \ \ I o \ I O � \ Q$��' --- — I � � a �,---- —�` \ 1 1 1 \ I 1 I I 1 \ 1 I I \ \ \ \\ \ 1 1 \� \ I 1 \ \ \ / / � W /\X��—S�^\ 4 \\ '� I \ \\ ( II 1\ ; I I 1 1 f 11 \\ 1 \ \\ \ \ \ 1 \I \ \ 1 \� \ ) I / o� LEI Q p W r \ — __ \—�__ I I I 11 I} I W OL w W \ " \ ? \ I } 1 1 \ \ I \ ± — I r \\\ \\ \\ 1 1 II I I\ I \1\ I I 1 11 1 II \ }I 1 I I\,l 11 I I I 1� jIl I \I \\\ LU c� W ND O Z �NGP 60 - G � I z J \ S-T�,G�N(s�l� \ 1\ I I II 9``\ I l 111 I II II//J ,\ I / / f �/, �1 f I Q MATCHLINE SHEET 16 DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JILT DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: 17 OF 25 N,// j r _�F�✓ /' ✓ // / i /ice/ / / / 1\1 ) \ \ / `/i/l//�J/i-_��_ �— �� //) 1 I I �. _� �I J/ J = �hc�`'= � � NA S7425'180E 650.00 — _ _ — / r — \ , i�\\ \\ ,S < 1j ID IF \ `� l / / 1 1 — /rD O \P P r oo� \\ �• r`� g0p3�� p -- NOTE TO CONTRACTOR: CRITICAL � / ' / — f /� — /— / r . — \ / l / o SLOPES TO BE FENCED OFF PRIOR / /i/// ` TO STARTING CONSTRUCTION. \\\ \ \ \ 1\\ Ile - \( \� /l \ a \ \ < J PROp,REt;�/ y I I I I \\ \ \ \\\ \ \ \ — — \ t t I 1 / ii - ----------------------------------- VIAL - J \ � \ , 1 RETAIN(NO - - \ , o �\ \ ) \ \ o tl 1` ✓ \ ` \ — — J /o PROP — d, I ! / — — _ — \ \ _ — _ _ _ _ �~C \ \l \\ \a �\\\ / _ / ��� /� C \ \` / / ' s / / • — _— \ � \�\\ , � 4= ,wie � ,,• / / / \\\\ \ 1 \ !� STREAM \ \ �,� 1�^\ \ \ cL- VIAL — � \ _.. ._ ' > � r / ^ � ,— / /�' \ � 5 �T�tv \ / �. / ,�� PROP• `, \\; I\y � � —� �tyP)/ I III � \ � '' — ,— f � / •� r '�\!! / � _ \ 1 \ \ .. \ \ \ \ • f /' s i i / //// � / � /� \ ST v\ ? r � / / ':. N . lr /J y .:'•� 7/ 11 .%y: • / J \ L \ I f a,SS°sF^ !s r\ // � = / / J "l 1 \\ r / J� CONCRETE WASH -OUT AREA / �—\\\\ \ \\\\\\\ 1 \ 1 i ; I 1 �\ w`4 SE/I \\ \�\�O \ \\ \ t / 1\ \1\ FUEL STATION&T-UP AREA GRADING, P k LANDSCAPING OPERATIONS DUMPSTER III\1\\ 1s \ J o\e� "," /: � I\ / \\ JI I /`I / / I ✓I�'—�;�\ � C\ �� / I � `\ —1 1 ` � I l I 11//% I 1\ L \ /, /j I ; /_J +I,,_f\ / \\\ / \\\III III `�a�� \lj�'N1 //J^\�1 `IIc� /.. 1 / \ h\ � ✓ / / \ 1' � J 11/11� � I I� \ \ X r z WAS RACK & EQUIPMENT/VEHICLE \ \\ //\\ I \ f r_ \ /,� —_,• '` � /// \ r \ 1 � ///'r / — „ /� /J �> 1 � � \II\I li � � l \\�,, 5 / �/o lY J \v WASHING SPILL CONTAINMENT I �//_ =—� J.`.,., / �\\ \� /J 1 1 I � \ � \\� — — • � �� — / -�_r � � I l �I� J I I �'� 1 /y �� IIa ,.— C \\ � / ,�,..,� LEGEND PRESERVATION EASEMENT \ \ — _ / y / 5 / j \ \ \\ �\ \ \\ ) \ DB. 5277 PG 305 / / ' — Y 1 \ �l/1 (� /�/ ///// ^\\ \\ \\\ N \\ ALBEMARLE COUNTY STEEP SLOPES OVERLAY - MANAGED ALBEMARLE COUNTY STEEP \\N\ \\\\ SLOPES OVERLAY -PRESERVED sv�>\\\ \\ N� \\ \� ZMA CONSERVATION AREA y�.asx \� \\\ �\ �\ \ \\ \\� s$• sz \ \ \ •'�" \\ Trofil 3 W —\— ' / N41'8�!/f If ZMA PRESERVATIN AREA $ \\ \\ \\\\\ \ \� \ \\ '—_--= 25 sl N76ro2'35*W I81.93 If ® SOIL LINE TYPE 95 (SOIL TYPE) sys ' \/7 z\\ \\� 60 0 60 120 180 \\\\ \\� \\\\ `` f i��/-- \\� \ \\\\ I\1\1 IIII I I /`/! /S //i/lj//� _ /// �! — — — — — ~ IIIIIIIIIIIIII SCALE: 1"=60' P o 7U7 F� W D cn o U O N O Z O,o Z JY� F ¢ w <LLJ OU Q J = UU ai w m y "0 0 (n O U �Q Q Z v U z T� V O 5 o V) C7 o xwLL 0 > o a� w V) Q N N W Z O J LLl U n = a J } N 7 � O, a Z W O Q••/ wo tx cn ¢ P U z 0 d u u 0 0 O� 5 z 0 a N 0 w 0 LL(Z) DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT o{�$syTs of pf�� r Jimmy L. Taggart U No. A 22"1 4� �o�SgBrONA1 6'�41¢~ Q z O T > =Y w U J j co _j m M (ro w i w o_ } 04 SQaz C) � O F li7 co W x o 0 w J Q � w J m O DATE: 02-15-2021 SCALE: 1 ":60' JOB: 8438 SHEET: 18 OF 25 177�7- NON -4�� � \ 1 \ \ 1 \ 1 \ \ \ \ \ \ \ \\ Ll\�If j lwkonulA /I > � \� \ \\ \\� \ 1\ \ \\ II \1 1 11 l ll I j (\ l\ \\ \\\\ '4� �� � -\v �/ / �/� ---�\ �- �/� _� �y•` �� � P �� - '`pgCJ /\ \\ \ \ \ \\\ \` \_ � � // // � / / / I / I1 rl I I I / _ 11 I I i � 1 // _ _�__, � � ...� \ `- J,.1�tnR�• //`_ �S �\�\ _ �// � \\ /_ ,'/_ / � / I I I `III I I � I I I / �-__ -_,` _ _�,r � �. ., -.//- \,- _r/ //J � •-, s �� � /\/\. r s' 1/ /-J \\ / -- \/5 /�/1 /\ TOT LOT / *••,:' •. \ �i I r, PARK M 14,550 SF I o-- s L � — s Sl3NITA EWER \ \ / t �' ! �\\ \ �.�.. %^/ :: s —s s —s s s s —s —s s —s /'s —s —s / -`� s j . .. ___ _ _ ---------- — — ----�— _ _ _ _ _ _ _ _ _ _ - 1 / � _. / _MIAMI CD / \ / YL II r _ N. / k 7j. I I \\ / / J. / I .,l• ; \ \ \ \ \\ \ III I I / / J/ I _ l I .: /': EROSION CONTROL MEASURES LEGEND 3.02 ENTRANCE CE 3,05 SILT FENCE SF STORM DRAIN O 3.07 INLET PROTECTION IP 3,08 CULVERT INLET CIP PROTECTION 3.09TEMPORARY DIVERSION DIKE DD =11I 3.13 SEDIMENT TRAP ST 3.14 SEBASIN DIMENT SB 3.18 OUTLET PROTECTION OP 3.31 TEMPORN RYSEEDI 3.32 P T SEEDING 3.35 MULCHING MU 3.38 TREE PRESERVATION�- AND PROTECTION 3.05 SUPER SILT FENCE SSF M f INS II </- �IIII ! `III- '� � � IIIII BM ELEV.= 453.77 Right Front Bonnet , 1 ' jolt on Hydrant / . �:� ` k\ x\ `\ \ // \ \ \ f \\ \I \\ \ `) I I 1 \ Ir - _ / - �•c_ _ _ �. / , �' � / ' - ZJ (:Ald'':: 1 =:iU \ \ aAj, 000 \\ \\ \ \\ \ \\ \ I Z U o � m W U o U - z° z N OO(D �Yg J r J = 00 Q � m W �0 U Er JZ vU Z� w' N WO 0 Z rn Q aQ 7 111 N W Q� z J � v J a J } i =C)w 0 a O O W� �Q rn= rn U Z O u w 0 W a 0 Oz Z 0 d a U 0 W Q 0 0 Z �yRs °j' ° o� / r Jimmy L. Taggart Ue. No. 22841 44 A$o�'ro010 AL z a O O T > Ir Y w O U Q 00 Z J w O m U m a Q O Cy Q Ir O I w W 06 Q Q a a a- O aW o-O o Z Ir : U uj Q Q x Zo Q cr W o Ix Q J � w Lu m Q O 2 O_ Ir DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: 19 OF 25 If I If all —--/// / T \\` \\\\ D1�tTIS 6F \ g / \ DIS RBA \ /�..._� J \ —�� �._ 'ram r/ /� /" \ � — \ �- \— -- —J^\— spG If If rl \ \ 10 kL EROSION CONTROL MEASURES LEGEND 3.02 ENTRANCETION CE 3.05 SILT FENCE SF STORM DRAIN 3.07 INLET PROTECTION IP 3.08CULVERI PROTECTIONL CIP TEMPORARY 3.09 DIVERSION DIKE DD } m 3.13 SEDIMENT TRAP ST 3.14 SEDIMENT SIN SB 3.18OUTLET PROTECTION OP 3.31 TEMPORARY D 3.32 P S ERMENANED NG T PS P5 3.35 MULCHING IS W 3.38 TREE PRESERVATION AND PROTECTION 3.05 SUPER SILT FENCE SSF A U o w w ^ �o OZ z�N 00 Y M tf)J rA H 01 M a w O �1 = J Q T Qyyi OU a� m "o (L Z C) a O 55 M 0 0 W 0< M a J Z v ZU � T h� ¢_ v �> o h.j W o F+1 Z vs o Z N d (r V W N w Q � Z J > O va iw a J >_ > Oaz� .u/ OU O W w m= rn O z 0 u U w a 0 O z A4 z 0 a u I 0 w a 0 0 z DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT Jimmy L/Taggart Lie. No. A 22841 �0re88t0NAL z Q Z go O r > Lu z Ir w zO O W CO Lu a m U O CO Q O w LU D_ >_ Qj � Q Q ja- z G O CD Q4 cD LU o_ ° o z a LLl x o z C) Q J o LLI FE g o Q J w w Lu m Q O F_ O N DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: ZO OF 25 / f e' \ d N. \ \ \ \ \ \ \\ \\ \ \ \\\ \ \ \ \\ \ \ \ \ EE�oEI�TIgi /- - - -' f-.� I I \ I I I I 1 I I I ' I \ / / / / /pR6R• � i •-' - . _ \ \ \\ �\\\ �\ � \\ �\ \ \\\ \\ ,/-'-7-- J. 0-- 1 I I I 1 31 ' / 40 - - �1 l \ 1 1 I Il I I I I I I I I ' 1111 \ \`_ gW /' / , 0 0 _-----'��� �-X \I I\\ \\\ \ \ \ \ \ J % - _ / \ \ \ \ \ \ 1 \ 1 1 1 I I 1 r I I I \ \ / / / / / / '/ ' ✓ ' I I' \\ \\\\ / - �/' , :• -' / \ / \ \ \\ \ \\ \ \ 11 \ I � I I I \ \ 1 I \ ` � /' / ' / // / ' { /' , ' � / \ \I �/ // � / / I � III I \ \\\� \ I /r- out // ///// l—\\ • s\ -•:. •••. e.`C ... a ,. s ma's. �E \ / y • .. \ W/ / \s s / �F- \ �1 rl / —� II / / z LL 0 JJ� II I� 30 \ \ F- II \ a 4 II j I ,�, Imo_ IIII I /-/ J// �// /` r/✓ F— l •P• I /�/ � I�/ 1 I I I\ \� \ �\ \\ 1 I I I I I I MATCHLINE SHEET 20 3.02 CONSTRUCTION ENTRANCECE 3.05 SILT FENCE SF STORM DRAIN 3.07 INLET PROTECTION IP CULVERT INLET 3.08 PROTECTIONTEMPORARY 3.09 DIVERSION DIKE DD }� 3.13 SEDIMENT TRAP ST 3.14 SEDIMENT SIN SB 3.18 OUTLET OP PROTECTION SEEDING 3.31 TEMPORARY ESEE D NG Y TS ---�- 3.32 P 3.05 SUPER SILT FENCE SSF U o m w D m o OZ op ZON Y tf)J H 01 a w U �1 Q T J = Qyyi 0U ¢� m "o aZ o a5 =W wo a 0 U MQ Er J Z z� v U w, wU N 0 Z O a¢ W N a� W z O J > a w a v co >- > Oaz� °o w¢ �a m= rn U DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT �Po.TB or 897: Jimmy L Taggart Lie. IN •A 22841 ,444 �0,e8810NAL 1''P' Q z ;o T > Lu O r Q J m W Lu CO a U Q O i W D_ >- U., Qjz a Q o a W o_ ° o LL : U W x , J o J w g O` o J � w Lu ' m Q i DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: 21 OF 25 SEDIMENT TRAP CALCULATIONS SEDIMENT TRAP 1 (PHASE 1Z SEDIMENT TRAP 6 Drainage Area (ac) 2.02 Drainage Area (ac): 1.58 Wet Storage Req: 135.34 cy Wet Storage Req: 105.86 cy Dry Storage Req: 135.34 cy Dry Storage Req: 105.86 cy Total Storage Req: 270.68 cy Total Storage Req: 211.72 cy Elev Side 1 Side 2 Area Vol (CO Vol (cy) Elev Side 1 Side 2 Area Vol (CO Vol (cy) Low Point: 418.0 1802.2 Low Point: 402.0 1393.9 1:1 Side Slope wet wet 1:1 Side Slope wet wet Botom of Weir: 420.0 2189.2 3991.4 147.8 Botom of Weir: 4040 1698.8 3092.7 114.5 2:1 Side Slope dry dry 2:1 Side Slope dry dry Top of Weir 422.0 3045.4 5234.6 193.9 Top of Weir 406.0 2787.8 4486.6 166.2 Weir Length (ft) 12.1 Weir Length (ft) 9.5 Weir Height (ft) 2.0 Weir Height (ft) 2.0 Top of Berm 423.00 Top of Berm 407.00 Top of Weir 422.00 Top of Weir 406.00 Bottom of Weir 4200.0.0 0.0 Bottom of Weir 404.0 0.0 0.0 Low Point 418.0 0.0 0.0 Low Point 402.0 0.0 0.0 Berm Width (ft) 2.5 Berm Width (ft) 2.5 SEDIMENT TRAP 2 SEDIMENT TRAP 7 Drainage Area (ac) 1.30 Drainage Area (ac): 2.66 Wet Storage Req: 87.10 cy Wet Storage Req: 17822 cy Dry Storage Req: .10 cy Dry Storage Req: 17822 cy Total Storage Req: 174.20 cy Total Storage Req: 356.44 cy Elev Side 1 Side 2 Area Vol (cf) Vol (cy) Low Point: 413.0 1263.2 Elev Side 1 Side 2 Area Vol (GO Vol (Cy) 1:1 Side Slope wet wet Low Point: 424.0 2526.5 Botom of Weir. 415.0 1568.2 2831.4 104.9 1:1 Side Slope wet wet 3:1 Side Slope dry dry Botom of Weir: 426.0 2962.1 5488.6 203.3 Top of Weir 417.0 2657.2 4225.3 156.5 2:1 Side Slope dry dry Top of Weir 428.0 4530.0 7492.1 277.5 Weir Length (ft) 7.8 Weir Height (ft) 2.0 Weir Length (ft) 16.0 Top of Berm 418.00 Weir Height (ft) 2.0 Top of Weir 417.00 Top of Berm 429.00 Bottom of Weir 415.0 0.0 0.0 Top of Weir 428.00 Low Point 413.0 0.0 0.0 Bottom of Weir 426.0 0.0 0.0 Berm Width (ft) 2.5 Low Point 424.0 0.0 0.0 Berm Width (ft) 2.5 SEDIMENT TRAP 3 SEDIMENT TRAP 1 (PHASE 2) Drainage Area (ac): 1.78 Drainage Area (ac): 2.40 Wet Storage Req: 11926 cy Wet Storage Req: 160.80 cy 4341.6 cf Dry Storage Req: 11926 cy Dry Storage Req: 1_60.80 cy 4341.6 cf Total Storage Req: 238.52 cy Total Storage Req: 321.60 cy 86832 cf Elev Side 1 ISide 2 Area Vol (Cf) Vol (Cy) Elev Side 1 Side 2 Area Vol (Cf) Vol (cy) Low Point: 410.01 2410.0 Low Point: 434.0 2090.9 1:1 Side Slope wet wet 1:1 Side Slope wet wet Botom of Weir: 412.0 2856.0 5266.0 195.0 Botom of Weir. 436.0 2526.5 4617.4 171.0 3:1 Side Slope dry dry 2:1 Side Slope dry dry Top of Weir 414.0 3830.0 6686.0 247.6 Top of Weir 438.01 3920.4 6446.9 238.8 Weir Length (ft) 10.7 Weir Length (ft) 14.4 Weir Height (ft) 2.0 Weir Height (ft) 2.0 Top of Berm 415.00 Top of Berm 437.00 Top of Weir 414.00 Top of Weir 436.00 Bottom of Weir 412.0 0.0 0.0 Bottom of Weir 434.0 0.0 0.0 Low Point 410.0 0.0 0.0 Low Point 432.0 0.0 0.0 Berm Width (ft) 2.5 Berm Width (ft) 2.0 SEDIMENT TRAP 4 SEDIMENT TRAP 7 (PHASE 2) Drainage Area (ac) 2A 1 Drainage Area (ac): 2.66 Wet Storage Req: 141.37 cy Wet Storage Req: 17822 cy Dry Storage Req: 141.37 cy Dry Storage Req: 17822 cy Total Storage Req: 282.74 cy Total Storage Req: 356.44 cy Low Point: 398.0 1796.5 Low Point: 432.0 2737.0 1:1 Side Slope wet wet 1:1 Side Slope wet wet Botom of Weir. 400.0 2195.0 3991.5 147.8 Botom of Weir. 434.0 3466.0 6203.0 229.7 3:1 Side Slope dry dry 2:1 Side Slope dry dry Top of Weir 402.0 3571.9 5766.9 213.6 Top of Weir 436.0 4552.0 8018.0 297.0 Weir Length (ft) 12.7 Weir Length (ft) 16.0 Weir Height (ft) 2.0 Weir Height (ft) 2.0 Top of Berm 403.00 Top of Berm 437.00 Top of Weir 402.00 Top of Weir 436.00 Bottom of Weir 400.0 0.0 0.0 Bottom of Weir 434.0 0.0 0.0 Low Point 398.0 0.0 0.0 Low Point 432.0 0.0 0.0 Berm Width (ft) 2.5 Berm Width (ft) 2.5 SEDIMENT TRAP 5 SEDIMENT TRAP 4 (PHASE 2 & 3Z Drainage Area (ac) 2.00 Drainage Area (ac): 2.95 Wet Storage Req: 134.00 cy Wet Storage Req: 197.65 cy Dry Storage Req: 134.00 cy Dry Storage Req: 197.65 _ cy Total Storage Req: 268.00 cy Total Storage Req: 395.30 cy Ell Side 1 Side 2 Area Vol (CO Vol (Cy) Elev Side 1 Side 2 Area Vol (ct) Vol (cy) Low Point: 398.0 2003.8 Low Point: 416.0 2751.2 1:1 Side Slope wet wet 1:1 Side Slope wet wet Botom of Weir. 400.0 2482.9 4486.7 166.2 Botom of Weir. 418.0 3225.E 5976.8 221.4 2:1 Side Slope dry dry 2:1 Side Slope dry dry Top of Weir 402.0 3540.3 6023.2 223.1 Top of Weir 420.0 4840.8 8066.4 298.8 Weir Length (ft) 12.0 Weir Length (ft) 17.7 Weir Height (ft) 2.0 Weir Height (ft) 2.0 Top of Berm 403.00 Top of Berm 421.00 Top of Weir 402.00 Top of Weir 420.00 Bottom of Weir 400.0 0.0 0.0 Bottom of Weir 418.0 0.0 0.0 Low Point 398.0 0.0 0.0 Low Point 416.0 0.0 0.0 Berm Width (ft) 2.5 Berm Width (ft) 2.5 sT TEMPORARY SEDIMENT TRAP ORIGINAL GROUND ELEV. *SEE PLATE 3.13-1 67 CU. YD./ACRE 67 CU. YD./ACRE (EXCAVATED) 1' VARIABLE* , * , �i 1.0' ,J VARIABLE* 4' MAX. \ FILTER CLOTH ORIGINAL GROUND ELEV. COARSE AGGREGATE** CLASS I RIPRAP CROSS SECTION OF OUTLET CLASS I RIPRAP LENGTH IN FEET) _ 6 X DRAINAGE AREA DIVERSION DIKE COARSE AGGREGATE EXCAVATED AREA FILTER CLOTH �\ **COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5 OUTLET (PERSPECTIVE VIEW) SOURCE: VA. DSWC sT TEMPORARY SEDIMENT TRAP PLATE. 3.13-2 MINIMUM TOP WIDTH (W) REQUIRED FOR SEDIMENT [l#ff1 Af iG a MA31V�II I&MI111C� ACCORDING TO HEIGHT OF SOURCE: VA. DSWC EMBANKMENT (FEET) H HO W 1.5 0.5 2.0 2.0 1.0 2.0 2.5 1.5 2.5 3.0 2.0 2.5 3.5 2.5 3.0 4.0 3.0 3.0 4.5 3.5 4.0 5.0 4.0 4.5 ORIGINAL GROUND ELEV. DIP DROP INLET PROTECTION SILT FENCE DROP INLET PROTECTION 2 X 4• WOOD FRAME DROP INLET ,WITH GRATE 1.5' MA%. _ FRAME ��IIIIIIIIIII�� GATHER _^ EXCESS UAT CORNERS PERSPECTIVE IVE VIEWS I IIIII �: ELEVATION OF STAKE AND FABRIC ORIENTATION DETAIL A THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER THAN 5%) WHERE THE INLET SHEET OR OVERLAND FLOWS (NOT EXCEEDING 1 C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS IN STREET OR HIGHWAY MEDIANS. SOURCE: N.C. Erosion end Sediment Control Planning and Desia Manual. 1988 PLATE 3.07-1 PLATE. 3.13-1 IP INLET PROTECTION BLOCK & GRAVEL CURB INLET SEDIMENT FILTER CURB INLET WIRE SCREEN ---- OVERFLOW SEDIMENT `�ihfl h�.wlhlly��:a��\ FILTERED WATER Milli I SEDIMENT "1"~nul�ll,j ill IIII - IIIII WIRE SCREEN 2' X 4' WOOD STUD �o CURB INLET SPECIAL APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS WHERE AN OVERFLOW CAPABILITY IS NECESSARY TO PREVENT EXCESSIVE PONDING IN FRONT OF THE STRUCTURE. • GRAVEL SHALL BE VDOT #3, #357 OR #5 COARSE AGGREGATE SOURCE: VA. DSWC PLATE 3.07-8 DIP DROP INLET PROTECTION BLOCK AND GRAVEL DROP INLET SEDIMENT FILTER WIRE SCREEN CONCRETE BLOCK GRAVEL FILTER WIRE SCREEN r FILTERED WATER OVERFLOW RUNOFF - WATER WITH SEDIMENT `WITHHP GATE SEDIME . 1 SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE HEAVY FLOWS ARE EXPECTED AND WHERE AN OVERFLOW CAPACITY IS NECESSARY TO PREVENT EXCESSIVE PONDING AROUND THE STRUCTURE. • GRAVEL SHALL BE VDOT #3, #357 OR #5 COARSE AGGREGATE. SOURCE: VA. DSWC PLATE. 3.07-3 J OUTLET PROTECTION PIPE OUTLET CONDITIONS A A 'IPE OUTLET TO FLAT REA WITH NO DEFINED HANNEL 1 Ln o% -� d SECTION A -A FILM CLOTH KEY IN 6'-9": MCOMMIMDED FOR ENfIRE PERDa reR (MIN.) Z.a�-)IIIII a 1 U o m W COo OZ Z Q N pm �Y� � J HOT �Qw Q au:U T �1 J Qyyi 00 ¢� m "o D- Z = W a O w 0 0 W °a M¢ a J Z v U Z� ¢_ W � o O w(9 LL Z O i N V D_ ° v W N W Q� UL J > IE IE C) w a J } > = 0 Tn O 0 a A/ U 0 w W Ir �Q mIE rn 0 z 0 a s U w 0 w a 0 O z 0-4 0 a u 0 a 0 0 z �SyT/Bg/D'p G97 !► Jimmy LTaggart De. No. A 22841 ,444 �O,e88tONAL 1,46 Z Q g z 0- O 0 0 T cr F- LU a z 0" o T F Q z O J LU Q O m Lu m U J � Q 0 co If UL Q O w W ui 0 } E~ � Q Q j z 2 O q W < ° CD z U H Q W x o z Q O F- O F- LU Q J � W � m Q Lij F- O fn 0 DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: 22 OF 25 TP TREE PROTECTION DRIP LINE PROTECTIVE DEVICE MAXIMUM LIMITS OF CLEARING AND GRADING PROPOSED GRADING T •IMi� �rrw �w w w w rwr r w w w / N . 5„:Moor %W-10' w %wro, WHERE DRIPLINE IS LESS THAN 5' ww www CONSTRUCTION OPERATIONS RELATIVE TO THE LOCATION OF PROTECTED TREES DD CLEAN WATER DIVERSION DIVERSION 10% SETTLEMM 0.3' FREE BOARS TYPICAL VEE-SHAPED DIVERSION Source: Va. DSWC Plate 3.12-1 ciP CULVERT INLET PROTECTION SILT FENCE CULVERT INLET PROTECTION ENDWALL ----------- -------- �--------- `1---T-' TOE OF FILL- CULVERT I I I I I 31 I � I I � I I I I I I I I I SILT FENCE FLOW TOE OF FILL • DISTANCE IS 6' MINIMUM IF FLOW IS TOWARD EMBANKMENT OPTIONAL STONE COMBINATION 1.5' h' FLOW 2.5' •VDOT #3, #357, #5, #56 OR #57 COARS�E AGGREGATE CLASS I RIPRAP TO REPLACE SILT FENCE IN " HORSESHOE " WHEN HIGH VELOCITY OF FLOW IS EXPECTED SOURCE: ADAPTED from VDOT Standard Sheets and Va. DSWC RR RIPRAP PLATE. 3.08-1 TOE REQUIREMENTS FOR BANK STABILIZATION FILTER CLOTH UNDERLINER (PREFERRED) GRANULAR FILTER SOURCE: Adapted from VDOT Drainage Manual PLATE. 3.19-1 SILT FENCE CONSTRUCTION OF A SILT FENCE (WITHOUT WIRE SUPPORT) 1. SET THE STAKES. 2. EXCAVATE A 4"X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. 6'MAX. i Jill FLOW r 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. 4" 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. SHEET FLOW INSTALLATION (PERSPECTIVE VIEW) SF/STONE NOT REQUIRED AFTER SLOPES ARE STABILIZED DOWNSLOPE OF OUTFALL POINTS A SHOULD BE HIGHER THAN POINT B. DRAINAGEWAY INSTALLATION (FRONT ELEVATION) E: Adapted from Installation of Straw and Fabric FSlter Barriers for Sediment Control,VA. DSWC 1 -2 OPs PERMANENT SEEDING FERTILIZATION AND MAINTENANCE TABLE 24 Maintenance Fertilization for Permanent Seedings Use Soil Test Recommendation or Rates Shown Below Seeding Mixture Formulation Lbs. per Lbs. per Time Mowing Acre 1000 sf Tall fescue makes 10-10-10 500 11.5 Yearly, or as *Not closer than 3" if up 70% or more or 400 9.2 needed fall occasional mowing is of cover. 30-10-10 desired. Crownvetch Spring the year Do not mow crownvetch Service lespedeza 0-20-0 400 9.2 following establishment Birdsfoot trefoil and every 4-5 years thereafter. Fairly uniform Fall the year Not required. not closer stand of Tall following than 4" if occasional Tescue & Service 5-10-10 500 11.5 establish- ment mowing is desired, and lespedeza, or and every 4-5 then in fall after seed Birdsfoot Trefoil. years thereafter. has matured. Weeping Spring the year Not required. not closer Lovegrass & following than 4" if occasional Service lespedeza 5-10-10 500 11.5 establishment mowing is desired, and fairly uniform plant and every 3-4 fall after sericea has distribution years thereafter. matured. Red & chewings 20-10-10 250 5.8 September, 30 Mow no closer than 2" for red fescue and Ky fescue, Kentucky days later December, May bluegrass; and closer bluegrass, hard 20-10-10 100 2.3 20-June-30, if than 3" for fescue. fescue mixture: needed. OTs TEMPORARY SEEDING MIXTURES FOR THE PIEDMONT AREA TABLE 26 TEMPORARY SEEDINGS BY RATES, DEPTHS, AND DATES Seeding Rate Planting depth (1) Seeding zones (Q and Seeding Date Q Species (11 Per Lbs/1000 7a and 7b 6b 6a and 5b acre Sq. ft (Inches) 2/1- 5/1- 8/15- 3/1- 5/1- 8/15- 3/15- 6/1- 8/1- 4/30 8/14 11/30 4/30 8114 11/15 5131 7/31 10/31 Choose one: BY BY BY Barley 2.5 bu. 2.80 1-2 X - 10/15 X - 10/15 X - 10/1 Oats 3 bu. 2.21 1-2 X - - X - - X - - Rye (4) 2.5 bu. 3.22 1-2 X - X X - X X - X Badey or Rye Plus 150 lbs. 3.45 1 X X 10/15 X X 10/15 X X 10/1 Foxtail X X X X X X X X X millet 5 Weeping 4lbs. 0.09 114-1/2 - X - - X - - X - lovegrass Annual ryegrasS 50lbs. 1.15 1/4-1/2 X - 11/1 X - 11/1 X - 8/15 Millet(7) 50 lbs. 1 1.15 1/2 - X - - X - - X - (1) Applicable on slopes of 3:1 or flatter (2) Refer to figure A - Adopted from USDA, ARS Miscellaneous Publication #1475, January 1990 (3) Between fall and spring seeding dates, use mulch only if ground is frozen and reseed when thawed (4) May be used as a nurse crop for late fall/early winter permanent seedings, add 56 Ibs/ac. to the permanent seeding mixture (4) Maryland State Highway Administration Temporary Seed Mix (5) May be used as a nurse crop for mid -summer permanent seedings. Add 2 Ibs/ac to permanent seed mix. (6) May be used as a nurse crop for mid -summer permanent seedings. Add 10 Ibs/ac. to the permanent seeding mix. cE CONSTRUCTION ENTRANCE 70' MIN. II EXISTING K- A 3 PAVEMENT 5:1 Y FILTER CLOTH 6" MIN. q MOUNTABLE BERM (OPTIONAL) SIDE ELEVATION VDOT #1 I I �� POSITIVE DRAINAGE COURSE AGGREGATE B TO SEDIMENT I TRAPPING DEVICE MUST • OF INGRON ESS FULL WIDTH PLAN VIEW OF INGRESS AND EGRESS - _12' MIN. FILTER CLOTH SECTION A - A REINFORCED CONCRETE SECTION B-B 7 10' MIN. 10' MIN. EXISTING �c- PAVEMENT 10, MIN, I I SOURCE: ADAPTED from 1983 Mar land Standards for Soil erosion and Sediment Control, and Va. DSWC SPACE PERMANENT SEEDING MIXTURES FOR Ps SUGGESTED TEMPORARY SEEDING MIXTURE Plate 3.02-1 THE PIEDMONT AREA TABLE 25 TOTAL LBS. PER ACRE MINIMUM CARE LAWN -COMMERCIAL OR RESIDENTIAL 175-200 LBS. - KENTUCKY 31 OR TURF -TYPE TALL FESCUE 95-100% - IMPROVED PERENNIAL RYE GRASS 0-5% - KENTUCKY BLUEGRASS 0-5% HIGH MAINTENANCE LAWN 200-250 LBS. - KENTUCKY 31 OR TURF -TYPE TALL FESCUE 100% GENERAL SLOPE (3:1 OR LESS) - KENTUCKY 31 FESCUE 128 LBS. - RED TOP GRASS 2 LBS. - SEASONAL NURSE CROP* 20 LBS. LOW -MAINTENANCE SLOPE (STEEPER THAN 3:1) - KENTUCKY 31 FESCUE 108 LBS. - RED TOP GRASS 2 LBS. - SEASONAL NURSE CROP* 20 LBS. - CROWN VETCH** 20 LBS. TOTAL 150LBS. *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 TH ROUGH 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 M UST BE PROPERLY INNOCULATED. WEEPING LOVEGRASS MAY BE ADDED TO ANY SLOPE OR LOW MAINTENANCE MIX DURING WARMER SEEDING PERIODS; ADD 10- 20 LBS./ACRE IN MIXES. FERTILIZER: 10-20-10: 1,000 LBS/ACRE SEPTEMBER-FEBRUARY 15: 50% ANNUAL RYE & 50% WINTER RYE 100 LBS/ACRE FEBRUARY 16-APRIL 30: ANNUAL RYE 100 LBS/ACRE MAY -AUGUST: GERMAN MILLET 50 LBS/ACRE OTHER OPTIONS EXIST, SEE VA EROSION AND SEDIMENT CONTROL HANDBOOK. SUGGESTED PERMANENT SEEDING MIXTURE LIME: 2 TONS/ACRE FERTILIZER: 10-20-10 1,000 LBS/ACRE MARCH -MAY 15: KENTUCKY 31 FESCUE 200 LBS/ACRE, ANNUAL RYE 20 LBS/ACRE MAY 16-AUGUST 15: KENTUCKY 31 FESCUE 200 LBS/ACRE, FOXTAIL MILLET 20 LBS/ACRE AUGUST 16-OCTOBER: KENTUCKY 31 FESCUE 200 LBS/ACRE, ANNUAL RYE 20 LBS/ACRE NOVEMBER-FEBRUARY: KENTUCKY 31 FESCUE 200 LBS/ACRE, WINTER RYE 20 LBS/ACRE U g m w CO _ a, O Z zgN 6(0 �Y� J H dl �Qw U Q T J = �yy4 UU ¢C CD"o aZ =w O w w 0 ¢ 0 U �Q J Z v U ZU IE W' N W (J � oZ N W N w Q Z J > O va iw a J co > =ocn OaZ� ,./ C) o W w ¢ ¢ rn= rn U z O U U ut 0 0 0Z Z 0 a u I 0 w a 0 0 Z �o;��SyT/B Op pr R� ta�� y �> Jimmy L/'Taggart Lie. No. VS 22841 44 �oWeeetoxel E4a1� Z Q g Z a O OIL 0 T Ir F LU a Z T E Q Z OJ _J LU Q om �m Q 0 Q O w LU W 0 } E- � Q Q j z O � C7 W <UJ a_ CD Z U U H Q W x o z Q O Q LU Q O R'. Q J CO W 111 2 m Q 0 F_ O C0 0 DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT DATE: 02-15-2021 SCALE: 1"=30' JOB: 8438 SHEET: 23 OF 25 Project Name: Date: Belvedere Phase 3 Block 10 11-Feb-21 BMP Design Specifications List: 2013 Draft Stds & Specs Site Information Post -Development Project (Treatment Volume and Loads) (land Cover (acres) A Soils B Soils C Soils D Soils Totals Forest/Open Space (acres) -- undisturbed, 0.00 protected forest/open sace or reforested Managed Turf (acres) -- disturbed, graded for ardsorotherturftobe 13.86 13.86 Impervious Cover (acres) 7.21 7.21 21.07 Constants Annual Rainfall (inches) 43 Target Rainfall Event (inches) 1.00 Total Phosphorus (TP) EMC (mg/L) 0.26 'Total Nitrogen (TN) EMC (mg/L) 1.86 TargetTP Load (lb/acre/yr) 0.41 Pj (unitless correction factor) 0.90 Land Cover Summary Forest/Open Space Cover (acres) 0.00 Weighted Rv (forest) 0.00 % Forest 0% Managed Turf Cover (acres) 13,86 Weighted Rv (turf) 0.20 % Managed Turf 66% Impervious Cover (acres) 7.21 Rv (impervious) 0.95 % Impervious 34% Site Area (acres) 21.07 Site Rv 0.46 Runoff Coefficients (Rv) A Soils B Soils C Soils D Soils Forest/Open Space 0.02 0.03 0.04 0.05 Managed Turf 0.15 0.20 0.22 0.25 Impervious Cover 0.95 0.95 0.95 0.95 DEVELOPMENTST Treatment Volume and Nutrient Loads Treatment Volume 0.8018 (acre-ft) Treatment Volume (cubic feet) 34,926 TP Load (lb/yr) 21.94 TN Load (Ib/yr) 156.98 Informational Purposes Only) Site Results (Water Quality Compliance) Area Checks FOREST/OPEN SPACE (ac) IMPERVIOUS COVER (ac) IMPERVIOUS COVER TREATED (ac) MANAGED TURF AREA (ac) MANAGED TURF AREA TREATED (ac) AREA CHECK data input cells constant values calculation cells D.A. A D.A. B D.A. C D.A. D D.A. E AREA CHECK 0.00 0.00 0.00 0.00 0.00 OK. 0.00 0.00 0.00 0.00 0.00 OK. 0.00 0.00 0.00 0.00 0.00 OK. 0.00 0.00 0.00 0.00 0.00 OK. 0.00 0.00 0.00 0.00 0.00 OK. OK. OK. OK. OK. OK. Site Treatment Volume (ft3) 34,926 Runoff Reduction Volume and TP By Drainage Area RUNOFF REDUCTION VOLUME ACHIEVED (ft3) TP LOAD AVAILABLE FOR REMOVAL (lb/yr) TP LOAD REDUCTION ACHIEVED (lb/yr) TP LOAD REMAINING (lb/yr) D.A. 0 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 NITROGEN LOAD REDUCTION ACHIEVED (Ib/yr) 0.00 0.00 0.00 0.00 0.00 0.00 Total Phosphorus FINAL POST -DEVELOPMENT TP LOAD (lb/yr) 21.94 TP LOAD REDUCTION REQUIRED (lb/yr) 13.31 TP LOAD REDUCTION ACHIEVED (lb/yr) 0.00 TP LOAD REMAINING (Ib/yr): 21.94 REMAINING TP LOAD REDUCTION REQUIRED (lb/yr): 13.31 Total Nitrogen (For Information Purposes) POST -DEVELOPMENT LOAD (lb/yr) 156.98 NITROGEN LOAD REDUCTION ACHIEVED (lb/yr) 0.00 REMAINING POST -DEVELOPMENT NITROGEN LOAD (lb/yr) 156.98 I\ *strya Conservation February 1, 2021 Steve Krohn Executive Vice President New Belvedere, Inc. 610 Rio Road W Charlottesville, VA 22901 Re: Slate River Nutrient Bank Nutrient Offset Availability Project Name: Belvedere Phase 3 Block 10 Mr. Krohn, This letter is to confirm the availability of authorized nonpoint nutrient offsets at the Slate River Nutrient Bank located in Buckingham County. The Slate River Nutrient Bank has received operational status through the Chesapeake Bay Watershed Nutrient Exchange Program (Virginia Code § 62.1-44.19:12 et seq.) of the Virginia Department of Environmental Quality. DEQ approved this project and issued a Nonpoint Nutrient Credit Generation Certification: Certificate No. James- 045 and an initial credit release for this project on January 14, 2019. A further credit release was released one year later, on January 2, 2020, upon meeting the success criteria as laid out by DEQ. As of the date of this letter, Ostrya Conservation, Inc. has 79.76 pounds of phosphorus offsets and 266.95 pounds of nitrogen offsets available for transfer in the approved service area in the James River watershed (including the following HUCs: 02080201/Upper James; 02080202/Maury; 02080203/Middle James -Buffalo; 02080204/Rivanna; 02080205/Middle James -Willis; and 02080207/Appomattox). These offsets were certified pursuant to the Chesapeake Bay Watershed Nutrient Exchange Program by the Virginia Department of Environmental Quality and the Virginia Department of Conservation and Recreation to be used as compensation for state or local permit water quality requirements. These offsets have been generated and are transferable according to § 10.1- 603.8:1 of the Code of Virginia. Ostrya Conservation confirms, via this letter, that the Slate River Nutrient Bank is reserving 13.31 phosphorus credits (i.e., 13.31 pounds/year) for use on your Belvedere Phase 3 Block 10 project Reservation of these credits is contingent on putting an "Agreement for Purchase and Sale of Nonpoint Nutrient Offset Credits' in place with Ostrya Conservation, Inc. within three months of the date of this letter. Please contact me with any questions. Sincerely, r James M. Eaton I Director Phone: +1-708-703-2552 Email: iames.eaton@nsn-vaconservation.com Ostrya conservation, Inc., P.O. Box 153, Scottsville VA 24590 STORMWATER QUALITY COMPLIANCE SUMMARY IN ACCORDANCE WITH VIRGINIA ADMINISTRATIVE CODE SECTION 9VAC25-870-55 STROMWATER MANAGEMENT PLANS, THESE PLANS ARE DESIGNED TO ADHERE TO VIRGINIA CODE. GENERAL THE PROPOSED DEVELOPMENT OF PARCEL TMP 062A3-00-00-00100, KNOWN AS BELVEDERE PHASE 3 BLOCK 10, PRESENTS A RESIDENTIAL SUBDIVISION UNDER THE NEIGHBORHOOD MODEL DISTRICT PER ZMA-2004-0007. THE PROJECT PROPOSED THE CONSTRUCTION OF 40 TOWNHOME LOTS AND 28 SINGLE FAMILY DETACHED LOTS (PLUS 2 EXISTING SFD LOTS). THIS DESIGN PROPOSES BY SATISFACTION OF SECTION 44.15.35, THAT WATER QUALITY IS ACCOMPLISHED BY OFFSITE ALTERNATIVES. REGARDING WATER QUALITY REQUIREMENT: 9VAC25-870-63 WATER QUALITY DESIGN CRITERIA REQUIREMENTS PER THE ADMINISTRATIVE CODE OF VIRGINIA: "1. NEW DEVELOPMENT, THE TOTAL PHOSPHORUS LOAD OF NEW DEVELOPMENT PROJECTS SHALL NOT EXCEED 0.41 POUNDS PER ACRE PER YEAR, AS CALCULATED PURSUANT TO 9VAC25-870-65." COMPLIANCE: CALCULATIONS SHOWN ON THIS PLAN WERE DETERMINED FROM ACCEPTABLE METHODOLOGY "DEQ VRRM FROM NEW DEVELOPMENT COMPLIANCE SPREADSHEET -VERSION 3.0." THESE PLANS SATISFY THE OFFSITE COMPLIANCE OPTIONS LIST OF § 62.1-44.15:35.D.3 - SECTIONS (i-iv). IT IS OUR UNDERSTANDING THAT THE VSMP AUTHORITY MAY ALLOW THE USE OF OFFSITE COMPLIANCE OPTIONS WHEN, AFTER CONSIDERATION OF ALL PRACTICABLE ONSITE TREATMENT OPTIONS AND THE SPECIFIC ELEMENTS OF THE STATUTE, THE PROPOSED PROJECT IS STILL UNABLE TO COMPLY WITH TREATMENT REQUIREMENTS. BASED ON NEW DEVELOPMENT OF BELVEDERE PHASE 3 BLOCK 10, THE WATER QUALITY PORTIONS OF THIS PLAN WILL BE SATISFIED WITH PURCHASING 13.31 IB/YR OF OFFSITE NUTRIENT CREDITS IN THE SAME OF ADJACENT HYDROLOGIC UNIT CODE (02080204). COMPLIANCE OF 9VAC25-870-65.F: OFFSITE ALTERNATIVE IAW 9VAC25-870-69 PURCHASE OF NUTRIENT OFFSET CREDITS IS PROPOSED AND AFFIRMED. PLEASE SEE THIS SHEET FOR AVAILABILITY LETTER FROM A NUTRIENT BANK SUPPLIER. A zU o w C0 m o -rn O Z ZWN Oto �Y� J r H 01 Q w O Q T Qyyi OU ¢� m `ao IL Z = w a O fn w0 0 W OQ¢ Q 12 v U Z C7 �_ ° > wZ O Z ir d V W N w Q� z J > O va iw a co F_r J >_ > = O to OaZ� ,./ S o W w Q rn= cn O z 0 U U w 0 a 0 O Z Z 0 a u I v7 0 a 0 0 z �o;40SyT/H Olp prQ� VA c'n7 y Jimmy L Taggart Lie. No. A 22841 ,444 �O,e88tONAL 1''Pa`Y- g Q Z O T > ~ J U LU o T Q z OJ � m z O 17] u' Q a I Q Ir o W W D_ > o xSCnM� c> ~ Q Q D F D_ U m q W Q lr : Q Q LU X � Q Q � 11J Q J w H W 17] Q O F_ O CO DESIGNED BY: MSK DRAWN BY: MSK CHECKED BY: JLT DATE: 02-15-2021 SCALE: 1 ":1000' JOB: 8438 SHEET: 24 OF 25 APPX B- Copy of Construction General Permit 27 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 10M.T 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. APPX C- VSMP Registration Statement, Notice of Coverage Letter, and Notice of Termination (if applicable) 28 VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION ACTIVITIES (VAR10) REGISTRATION STATEMENT 2019 Application type. ❑x NEW PERMIT ISSUANCE (CHOOSE ONE) ❑ MODIFICATION WITH ACREAGE INCREASE ❑ MODIFICATION WITHOUT ACREAGE INCREASE ❑ EXISTING PERMIT RE -ISSUANCE Section 1. Operator/Permittee Information. PERMIT #: PLAN/ID #: TECHNICAL CRITERIA: 1113111 IIC ❑ A. Construction Activity Operator (Permittee). The person or entity that is applying for permit coverage and will have operational control over construction activities to ensure compliance with the general permit. A person with signatory authority for this operator must sign the certification in Section V. (per Part III. K. of the VAR10 Permit). Operator Name: New Belvedere Inc. Contact person: Steven C. Krohn Address: 610 West Rio Rd. City, State and Zip Code: Charlottesville VA 22901 Phone Number: 434-242-6122 Primary and CC Email: skrohn@resortcompanies.com, njamison@roudabush.com, riki@roudabush.com B. Electronic correspondence. To receive an emailed coverage letter or to pay by credit card, you must choose YES and include a valid email. May we transmit correspondence electronically? YES ❑x NO ❑ Section II. Construction Activity Information. A. Include a site map showing the location of the existing or proposed land -disturbing activities, the limits of land disturbance, construction entrances and all waterbodies receiving stormwater discharges from the site. B. Project site location information. Construction Activity Name: Belvedere Block 10 Address: Intersection of Farrow Dr. and Fowler St. City and/or County and Zip Code: Charlottesville, VA 22901 Construction Activity Entrance Location Intersection of Farrow Dr. and Fowler St. (description, street address and/or 38.076143,-78.452682 latitude/longitude in decimal degrees): Latitude and Longitude 38076143,-78.452682 (6-digit, decimal degrees format): C. Acreage totals for all land -disturbing activities to be included under this permit coverage. Report to the nearest one -hundredth of an acre. Total land area of development (include entire area to be disturbed as approved in the Stormwater Management Plan): 93.61 acres Primary estimated area to be disturbed (include portions with Erosion and Sediment Control Plan approval only): 19.56 acres Off -site estimated area to be disturbed (if applicable): D. Property Owner Status: FEDERAL ❑ STATE ❑ PUBLIC ❑ PRIVATE ❑x E. Nature of the Construction Activity Description (i.e. commercial, industrial, residential, agricultural, environmental, utility): Residential F. Municipal Separate Storm Sewer System (MS4) name(s) (if the site is discharging to a MS4): N/A G. Estimated Project Dates (MM/DD/YYYY). Start Date: 03 01 2021 Completion Date: 05/31/2024 H. Is this construction activity part of a larger common plan of YES ❑ NO ❑ development or sale? Rev 11/2020 PAGE 1 1 6 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT2019 I. 61^ Order Hydrologic Unit Code (HUC) and Receiving Water Name(s). Include additional areas on a separate page. HUC NAMES) OF RECEIVING WATERBODY JR14 HUCO20802040401 Rivanna River -Meadow Creek JR08 HUCO20802040203 South Fork Rivanna River Section III. Off -site Support Activity Location Information. List all off -site support activities and excavated material disposal areas being utilized for this project. Include additional areas on a separate page. Off -site Activity Name: Address: City or County: Off -site Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): Latitude and Longitude (6-digit, decimal degrees format): Is this off -site activity an excavated material disposal area? YES ❑ NO ❑ If this off -site activity is an excavated material disposal area, list the contents of the excavated fill material: Will a separate VPDES permit cover this off -site activity? YES ❑ NO ❑ Section IV. Other Information. A. A stormwater pollution prevention plan (SWPPP) must be prepared in accordance with the requirements of the General VPDES Permit for Discharges of Stormwater from Construction Activities prior to submitting the Registration Statement. By signing the Registration Statement, the operator is certifying that the SWPPP has been prepared. B. Has an Erosion and Sediment Control Plan been submitted to the VESC Authority for review? YES ❑x NO ❑ Erosion and Sediment Control Plan Approval Date (for the estimated area to be disturbed MM/DD/YYYY): C. Has land -disturbance commenced? YES ❑ NO D. Annual Standards and Specifications. If this project is utilizing approved Annual Standards and Specifications (AS&S), attached the completed AS&S Entity Form. AS&S Entity Name (if different from the Operator identified in Section 1): E. Billing information (leave blank if same as the Operator identified in Section I. above). This entity will receive Annual Permit Maintenance and Permit Modification Fee invoices (if applicable). Billing Name: Contact Name: Address: City, State and Zip Code: Phone Number: Primary and CC Email: Rev 11/2020 PAGE 2 16 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 Section V. Certification. A person representing the operator as identified in Section I. A. and meeting the requirements of 9VAC25-880-70. Part III. K must physically sign this certification. A typed signature is not acceptable. Please note that operator is defined in 9VAC25-870-10 as follows: "Operator" means the owner or operator of any facility or activity subject to the Act and this chapter. In the context of storm water associated with a large or small construction activity, operator means any person associated with a construction project that meets either of the following two criteria: (i) the person has direct operational control over construction plans and specifications, including the ability to make modifications to those plans and specifications or (ii) the person has day -today operational control of those activities of a project that are necessaryto ensure compliance with a stormwoter pollution prevention plan for the site or otherstate permit or VSMP authority permit conditions (i.e., they are authorized to direct workers of o site to carry out activities required by the stormwater pollution prevention plan or comply with other permit conditions). In the context of stormwater discharges from Municipal Separate Storm Sewer Systems (MS4s), operator means the operator of the regulated MS4 system. 9VAC25-880-70. Part III. K. Signatory Requirements. Registration Statement. All Registration Statements shall be signed asfollows: a. For a corporation: by a responsible corporate officer. For the purpose of this chapter, a responsible corporate officer means: (i) a president secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy -making or decision -making functions for the corporation; or (ii) the manager of one or more manufacturing, production, or operating facilities, provided the manager is authorized to make management decisions that govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long-term compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for state permit application requirements; and where authority to sign documents has been assigned ordelegated 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 (H) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency. Certification: "I certify under penalty of law that I have read and understand this Registration Statement and that this document and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering the information, the information submitted is to the best of my knowledge and belief true, accurate, and complete. I am aware that there are significant penalties for submitting false information including the possibility of fine and imprisonment for knowing violations." Printed Name: Signature (signed In ink): Date Signed: Section VI. Submittal Instructions. Submit this form to the VSMP Authority. If the locality is the VSMP Authority, please send your Registration Statement submittal directly to the locality; do NOT send this form to DEQ. A list of local VSMP Authorities is available here: VSMP Authorities. If DEQ is the VSMP Authority, please send to: if the locality is the VSMP Authority, please send to: Department of Environmental Quality Office of stormwater Management Suite 1400 PO Box 1105 Richmond VA 23218 constructiongpC@deg.virginia.gov Albemarle County Office of Community Development 401 McIntire Rd. Charlottesville, VA 22902 (434)296-5832 Rev 11/2020 PAGE 3 16 APPX D- Delegation of Authority Delegation of Authority I, Steven C. Krohn (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 Belvedere Block 10 construction site. The designee is authorized to sign any reports or other documents required by the permit. Construction Activities Inspector (name of person or position) Roudabush. Gale & Associates (company) Nicole Jamison, Kent Rain or an, other Oualified Personnel from Roudabush 999 2nd St. SE (address) Charlottesville. Va. 22902 (city, state, zip) (434) 977-0205 (phone) By signing this authorization, I confirm that I meet the requirements to make such a designation as set forth in Virginia's General VPDES Permit for Discharges of Stormwater from Construction Activities (CGP), and that the designee above meets the definition of a "duly authorized representative" as set forth in in the CGP. 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. Name: \ (<�—O IA Company:\ 't'sl Title: v V Signature: Date: -all 15 /Za 7=� 29 APPX E- Inspection Reports and Precipitation Log (Blank inspection report included below. Weekly inspection reports are found in different folder in SWPPP box) 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 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 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 Log. BMP BMP Installed? BMP Maintenance Required? Corrective Action Needed and Notes Date Corrective Action Taken I ❑Yes ❑No ❑Yes ❑No 2 ❑Yes ❑No ❑Yes ❑No 3 ❑Yes ❑No ❑Yes ❑No 4 ❑Yes ❑No ❑Yes ❑No 5 ❑Yes ❑No ❑Yes ❑No 30 BMP BMP Installed? BMP Maintenance Required? Corrective Action Needed and Notes Date Corrective Action Taken 6 ❑Yes ❑No ❑Yes ❑No 7 ❑Yes ❑No ❑Yes ❑No 8 ❑Yes ❑No ❑Yes ❑No 9 ❑Yes ❑No ❑Yes ❑No 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 Required? 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 Bws? 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 trash/litter from work ❑Yes ❑No ❑Yes ❑No areas collected and placed in covered dumpsters? 31 BMP/activity Implemented? Maintenance Corrective Action Needed and Notes Required? 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 stormwater 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 Non -Compliance Describe any incidents of non-compliance not described above: CERTIFICATION STATEMENT "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 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 Use information, including the possibility of fine and imprisonment for knowing violations." Print name and title: Signature: Date: 32 APPX F- Grading and Stabilization Log Grading and Stabilization Activities Log Project Name: Belvedere Block 10 SWPPP Contact: Date Grading Activity Initiated Location of Grading Date Grading Activity Ceased (Indicate Temporary or Permanent) Date When Stabilization Measures are Initiated Description of Stabilization Measure and Location 33 APPX G- Log of Changes and Updates to SWPPP SWPPP Amendment Log Project Name: Belvedere Block 10 SWPPP Contact: Amendment No. Description of the Amendment Date of Amendment Amendment Prepared by [Name(s) and Title] 34 APPX H- Subcontractor and Contractor Certifications/Agreements Subcontractor and Contractor Certifications/Agreements SUB/CONTRACTOR CERTIFICATION STORMWATER POLLUTION PREVENTION PLAN Project Title: Operator(s): As a subcontractor, you are required to comply with the Stormwater Pollution Prevention Plan (SWPPP) for any work that you perform on -site. Any person or group who violates any condition of the SWPPP may be subject to substantial penalties or loss of contract. You are encouraged to advise each of your employees working on this project of the requirements of the SWPPP. A copy of the SWPPP is available for your review at the SWPPP mailbox. Each subcontractor engaged in activities at the construction site that could impact stormwater must be identified and sign the following certification statement: I certify under the penalty of law that I have read and understand the terms and conditions of the SWPPP for the above designated project and agree to follow the BMPs and practices described in the SWPPP. This certification is hereby signed in reference to the above named project: Company: Address: Telephone Number: Type of construction service to be provided: Signature: Title: Date: 35 APPX I- Factsheets, Additional Information, and Spill Reports 79 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. N 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 c` m� Uses of Recycled Materials 3 Reused to washout additional mixer truck chutes or drums x Reused as a ready mixed concrete ingredient x x° z 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 reclatmer 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.Vinylwashoutpitwithfilterbag 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. mp 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 coverand 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 Siting 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, CCI Consulting Figure 6. William Turley, Construction Materials Recycling Association Figure 7. Brad Burke, Innovative Concrete Solutions, LLC Figure 8. 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 may be 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. r February 1, 2021 Steve Krohn Executive Vice President New Belvedere, Inc. 610 Rio Road W Charlottesville, VA 22901 Re: Slate River Nutrient Bank Nutrient Offset Availability Project Name: Belvedere Phase 3 Block 10 Mr. Krohn, This letter is to confirm the availability of authorized nonpoint nutrient offsets at the Slate River Nutrient Bank located in Buckingham County. The Slate River Nutrient Bank has received operational status through the Chesapeake Bay Watershed Nutrient Exchange Program (Virginia Code § 62.1-44.19:12 et seq.) of the Virginia Department of Environmental Quality. DEQ approved this project and issued a Nonpoint Nutrient Credit Generation Certification: Certificate No. James- 045 and an initial credit release for this project on January 14, 2019. A further credit release was released one year later, on January 2, 2020, upon meeting the success criteria as laid out by DEQ. As of the date of this letter, Ostrya Conservation, Inc. has 79.76 pounds of phosphorus offsets and 266.95 pounds of nitrogen offsets available for transfer in the approved service area in the James River watershed (including the following HUCs: 02080201/Upper James; 02080202/Maury; 02080203/Middle James -Buffalo; 02080204/Rivanna; 02080205/Middle James -Willis; and 02080207/Appomattox). These offsets were certified pursuant to the Chesapeake Bay Watershed Nutrient Exchange Program by the Virginia Department of Environmental Quality and the Virginia Department of Conservation and Recreation to be used as compensation for state or local permit water quality requirements. These offsets have been generated and are transferable according to § 10.1- 603.8:1 of the Code of Virginia. Ostrya Conservation confirms, via this letter, that the Slate River Nutrient Bank is reserving 13.31 phosphorus credits (i.e.,13.31 pounds/year) for use on your Belvedere Phase 3 Block 10 project Reservation of these credits is contingent on putting an "Agreement for Purchase and Sale of Nonpoint Nutrient Offset Credits" in place with Ostrya Conservation, Inc. within three months of the date of this letter. Please contact me with any questions. Sincerely, 2� James M. Eaton I Director Phone: +1-708-703-2552 Email: iames.eaton@ostryaconservation.com Ostrya Conservation, Inc., P.O. Box 153, Scottsville VA 24590 ROUDABUSH, GALE & ASSOC. , Inc. A PROFESSIONAL CORPORATION Serving Virginia Since 1956 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) 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. 999 Second Street SE. Charlottesville. VA 22902. www.Roudabush.com 434.977.0205 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: 999 Second Street SE. Charlottesville. VA 22902. www.Roudabush.com Page 2 of 3 2/15/2021 "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: 999 Second Street SE. Charlottesville. VA 22902. www.Roudabush.com Page 3 of 3