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HomeMy WebLinkAboutWPO202100060 VSMP - SWPPP 2022-08-15�h�os.arrJ COUNTY OF ALBEMARLE Department of Community Development tt 401 McIntire Road, North Wing Charlottesville, Virginia 22902-45% r Tel. (434) 296-5832 • Fax (434) 972-4126 Stormwater Pollution Prevention Plan (SWPPP) Project Name: Address: For Construction Activities At: 1636 Seminole Trail Charlottesville, VA 22901 Prepared by: Name: Ryan T. Yauger, P.E. Prepared for: Name: Discount Tire Charlottesville SWPPP Preparation Date: October 29, 2021 (This document is to be made publicly available according to 9VAC25-880-70, Part II, section D) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County CONTENTS: (from Albemarle County Code Sec. 17-405) 1. Registration statement 2. Notice of general permit coverage 3. Nature of activity 4. Erosion and Sediment Control Plan. 5. Stormwater Management Plan 6. Pollution Prevention Plan. 7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload allocation, and exceptional waters. 8. Qualified personnel 9. Signed Certification 10. Delegation of authority. 11. General permit copy 12. Inspection logs Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 1. Registration statement (Provide a signed completed copy of the DEQ registration statement) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION ACTIVITIES (VAR10) REGISTRATION STATEMENT 2019 Application type. © NEW PERMIT ISSUANCE (CHOOSE ONE) ❑ MODIFICATION WITH ACREAGE INCREASE ❑ MODIFICATION WITHOUT ACREAGE INCREASE ❑ EXISTING PERMIT RE -ISSUANCE Section I. Operator/Permittee Information. PERMIT #: PLAN/ID #: TECHNICAL CRITERIA: IIB ❑ 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: Halle Properties, LLC c/o Discount Tire Contact person: Bill Address: 20225 N. Scottsdale Road City, State and Zip Code: Scottsdale. AZ 85255 Phone Number: Primary and CC Email: gill.Shrum discounttire.com / au er bohleren .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 N 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: Discount Tire Address: 1636 Seminole Trail City and/or County and Zip Code: Charlottesville VA 22901 Construction Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): Existing southern access along Seminole Trail - 1636 Seminole Trail. Lat 38.1, Long -78.5 Latitude and Longitude (6-digit, decimal degrees format): (38.0809,-78.475) 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): 1.32 Primary estimated area to be disturbed (include portions with Erosion and Sediment Control Plan approval only): 1.32 Off -site estimated area to be disturbed (if applicable): 0 D. Property Owner Status: FEDERAL ❑ STATE ❑ PUBLIC ❑ PRIVATE E. Nature of the Construction Activity Description (i.e. commercial, industrial, residential, agricultural, environmental, utility): I Commercial F. Municipal Separate Storm Sewer System (MS4) name(s) (if the site is discharging to a MS4): AlbemarlelCounty of G. Estimated Project Dates (MM/DD/YYYY). Start Date: 5/l/2022 Completion Date: 12/31/2022 H. Is this construction activity part of a larger common plan of development or sale? YES ❑ NO Rev 11/2020 PAGE 1 1 6 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 I. 611 Order Hydrologic Unit Code (HUC) and Receiving Water Name(s). Include additional areas on a separate page. HUC NAME(S) OF RECEIVING WATERBODY 020802040401 Rivanna River- Meadow Creek section III. Ott -site Support Activitv 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: N/A Address: N/A City or County: N/A Off -site Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): N/A Latitude and Longitude (6-digit, decimal degrees format): N/A Is this off -site activity an excavated material disposal area? YES ❑ NO IN If this off -site activity is an excavated material disposal area, list the contents of the excavated fill material: N/A Will a separate VPDES permit cover this off -site activity? YES ❑ NON 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 N NO ❑ Erosion and Sediment Control Plan Approval Date (for the estimated area to be disturbed MM/DD/YYYY): TBD 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 I): N/A 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 (VAR30) 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 stormwater 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-to-day operational control of those activities at a project that are necessary to ensure compliance with a stormwater pollution prevention plan for the site or other state permit or VSMP authority permit conditions (Le., they are authorized to direct workers at a 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 (M54s), operator means the operator of the regulated M54 system. 9VAC25-880-70. Part I II. K. Signatory Requirements. 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 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 ore 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, o 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 constructiongp@deq.virginia.gov Albemarle County Department of Community Development 401 McIntire Road Charlottesville, VA 22902 Rev 11/2020 PAGE 3 1 6 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 INSTRUCTIONS PLEASE DO NOT PRINT OR SUBMIT This Registration Statement is for coverage under the General VPDES Permit for Discharges of Stormwater from Construction Activities. This form covers the following permit actions: new permit issuance, existing permit modification with an increase in acreage, existing permit modifications that result in a plan modification but do not result in an increase in disturbed acreage, and reissuance of an active permit coverage. Application type. Select NEW PERMIT ISSUANCE to obtain a new permit coverage. Modifications are for modifying an existing, active permit coverage. Select MODIFICATION WITH ACREAGE INCREASE when the previously approved acreage(s) increases (permit modifications are not performed for decreases in acreage unless they result in plan changes — see Modification WITHOUT Acreage Increase). Select MODIFICATION WITHOUT ACREAGE INCREASE when there is a change to the site design resulting in a change to the approved plans with no increase in acreage(s) Select EXISTING PERMIT REISSUANCE to extend an expiring permit coverage for the next permit cycle and include the existing permit number. Section I. Operator/Permittee Information. 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. For companies, use the complete, active, legal entity name as registered with a state corporation commission. Entities that are considered operators commonly consist of the property owner, developer of a project (the party with control of project plans and specifications), or general contractor (the party with day-to-day operational control of the activities at the project site that are necessary to ensure compliance with the general permit). If an individual person is listed as the operator, that person (or a legal representative of) must sign the certification in Section V. An operator may be one of the following: 9VAC25-870-10. Definitions "Operator" means the owner or operator of any facility or activity subject to the Act and this chapter. In the context of stormwater 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 (if) the person has day-to-day operational control of those activities at a project that are necessary to ensure compliance with a stormwater pollution prevention plan for the site or other state permit or V5MP authority permit conditions (i.e., they are authorized to direct workers at a 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 (MS4), operator means the operator of the regulated MS4 system. "Owner" means the Commonwealth or any of its political subdivisions including, but not limited to, sanitation district commissions and authorities, and any public or private institution, corporation, association, firm or company organized or existing under the laws of this or any other state or country, or any officer or agency of the United States, or any person or group of persons acting individually or as a group that owns, operates, charters, rents, or otherwise exercises control over or is responsible for any actual or potential discharge of sewage, industrial wastes, or other wastes or pollutants to state waters, or any facility or operation that has the capability to alter the physical, chemical, or biological properties of state waters in contravention of § 62.1-44.5 of the Code of Virginia, the Act and this chapter. "Person" means any individual, corporation, partnership, association, state, municipality, commission, or political subdivision of a state, governmental body, including a federal, state, or local entity as applicable, any interstate body or any other legal entity. B. May we transmit correspondence electronically? If you choose YES to this question and provide an email address in Section I. A., all correspondence, forms, invoices and notifications will be transmitted by email to the operator. This will also give the operator the ability to pay by credit card and to receive Dermit coverage aooroval letters immediately uoon Dermit aooroval. Section II. Construction Activity Information. A. A site map indicating the location of the existing or proposed land -disturbing activities, the limits of land disturbance, construction entrances and all water bodies receiving stormwater discharges from the site must be included with the submittal of this form. Aerial imagery maps or topographic maps showing the required items are acceptable. Plan sheet sized site maps are not required. Please consult your VSMP authority if you have additional questions regarding site map requirements. B. Construction Activity Name and location. Provide a descriptive project name (it is helpful to use the same naming convention as listed on the Stormwater Management plans), 911 street address (if available), city/county of the construction activity, and the 6-digit latitude and longitude in decimal degrees format for the centroid, main construction entrance or start and end points for linear projects (i.e. 37.1234N/-77.1234W). C. Acreage totals for all land -disturbing activities, on- and off -site, to be included under this permit. Acreages are to be reported to the nearest one -hundredth acre (two decimal places; i.e. 1.15 acres). Provide the total acreage of the primary development site as approved on the Stormwater Management Plans and the primary on -site estimated acreage to be disturbed by the construction activity as approved under the Erosion and Sediment Control Plans. The off -site estimated area to be disturbed is the sum of the disturbed acreages for all off -site support activities to be covered under this general permit. Do not include the off -site acreage totals in the primary, on -site total and estimated disturbed acreage totals. Permit fees are calculated based on your disturbed acreage total for all on- and off -site areas being disturbed under this permit coverage (the sum of all on -site and off -site disturbed acreages). D. Property owner status. The status of the construction activity property owner. Any property not owned by a government entity or agency (i.e. federal, state or local governments) is PRIVATE. Rev 11/2020 PAGE 4 16 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 INSTRUCTIONS PLEASE DO NOT PRINT OR SUBMIT E. Nature of the construction activity description. Choose the designation that best describes the post -construction use of this project (you may choose more than one). (i.e. Residential, Commercial, Industrial, Agricultural, Environmental, Educational, Oil and Gas, Utility, Transportation, Institutional, etc.). Describe the post -construction use of the project (i.e. Commercial — one new office building and associated parking and utilities; Transportation — Linear roads, sidewalks and utilities; Agricultural-3 Poultry Houses, etc.). F. Municipal Separate Storm Sewer System (MS4) name(s) if discharging to a MS4. If stormwater is discharged through a MS4 (either partially or completely), provide the name of the MS4(s) that will be receiving water from this construction activity. The MS4 name is typically the town, city, county, institute or federal facility where the construction activity is located. G. Estimated project dates. Provide the estimated project start date and completion date in Month/Day/Year or MM/DD/YYYY format (i.e. 07/30/2019). H. Is this construction activity is part of a larger common plan of development or sale? "Common plan of development or sale" means a contiguous area where separate and distinct construction activities may be taking place at different times on different schedules per 9VAC25-870-50. Definitions. Le. a subdivision, commercial development, business park, etc. I. 6th Order Hydrologic Unit Code (HUC) and associated Receiving Water Name(s). Provide all 6th order HUCs and receiving waterbody names, for the primary site and any Off -site areas included under this permit coverage, that could potentially receive stormwater runoff discharging from this activity. The HUC can be either a 12-digit number (i.e. 0208010101) or 2-letter, 2-number code (i.e. JL52). Include additional HUCs or receiving waters on a separate page. You may utilize DEQ!s web -based GIS application, VEGIS, to obtain this information. • VEGIS application link: DEas VEGIS Mapping Application • Instructions for utilizing DE(Xs VEGIS application link: CGP-GIS HUC Instructions Section III. Off -site Support Activity Location Information. 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 (i) the support activity is directly related to a construction activity that is required to have general permit coverage; (ii) the support activity is not a commercial operation, nor does it serve multiple unrelated construction activities by different operators; (III) the support activity does not operate beyond the completion of the construction activity it supports; (iv) the support activity is identified in the Registration Statement at the time of general permit coverage; (v) appropriate control measures are identified in a SWPPP and implemented to address the discharges from the support activity areas; and (vi) all applicable state, federal, and local approvals are obtained for the support activity. Off -site activity name and location information. Provide a descriptive off -site project name, 911 street address (if available), construction entrance location (address or decimal degrees coordinates and description), city/county and the 6-digit latitude and longitude in decimal degrees (i.e. 37.1234N, 77.1234W) of all off -site support activities. Indicate whether the off -site support activity will be covered under this general permit or a separate VPDES permit. If excavated material (i.e., fill) will be transported off -site for disposal, the name and physical location address, when available, of all off -site excavated material disposal areas including city or county; 6-digit latitude and longitude in decimal degrees (i.e. 37.1234N, 77.1234W) and the contents of the excavated material. List additional off -site areas to be included under this permit coverage on a separate page. Off -site areas not included on this registration will need to obtain coverage under a separate VPDES permit. Section IV. Other Information. A. A stormwater pollution prevention plan (SWPPP) must be prepared prior to submitting the Registration Statement per 9VAC25-880. See 9VAC25-880-70. Part II. of the General Permit for the SWPPP requirements. B. If the Erosion and Sediment Control Plan for the estimated area to be disturbed listed in Section II. C. has been submitted to the VESC Authority for review and plan approval, choose YES. If you are submitting this application to reissue an existing permit coverage, please provide the date that the VESC Authority approved the Erosion and Sediment Control Plan for the estimated area to be disturbed. C. If land disturbance has commenced, choose YES. "Land disturbance" or "land -disturbing activity" means a man-made change to the land surface that may result in soil erosion or has the potential to change its runoff characteristics, including construction activity such as the clearing, grading, excavating, or filling of land per §62.1-44.15:24. Definitions. D. If this project is using approved Annual Standards and Specifications (AS&S), attach the completed AS&S Entity Form. If the AS&S Entity is different from the operator identified in Section I. A., list the AS&S Entity Name. The AS&S entity is the entity or agency that holds the approved annual standards & specification. Please indicate if this project is also requesting a plan waiver. • AS&S Entity Form link: Annual Standards and Specifications Entity Information Form Rev 11/2020 PAGE 5 16 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 INSTRUCTIONS PLEASE DO NOT PRINT OR SUBMIT E. Billing information. If the person or entity responsible for billing/invoicing is different from the operator, please complete this section. If they are the same, leave this section blank. Section V. Certification. A properly authorized individual associated with the operator identified in Section I. A. of the Registration Statement is responsible for certifying and signing the Registration Statement. A person must physically sign the certification, a typed signature is unacceptable. State statutes provide for severe penalties for submitting false information on the Registration Statement. State regulations require that the Registration Statement be signed as follows per 9VAC25-880-70 Part III. K. 1.: a. For a corporation: by a responsible corporate officer. For the purpose of this part 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 (H) 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 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. c. For a municipality, state, federal, or other public agency: by either a principal executive officer or ranking elected official. For purposes of this part 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 far the overall operations of a principal geographic unit of the agency. Section VI. Submittal Instructions. Submit this form to the VSMP Authority that has jurisdiction for your construction activity. The VSMP Authority maybe either DEQ or your locality depending on the location and type of project. If your project is under the jurisdiction of a Local VSMP Authority, please contact the locality for additional submittal instructions. A blank area is provided for the Local VSMP Authority's mailing address. Who is the VSMP Authority for my orofect? DEQ or the locality? • DEQ: DEQ is the VSMP Authority and administers permit coverage for land -disturbing activities that are: ➢ within a locality that is not a VSMP Authority; ➢ owned by the State or Federal government; or ➢ utilizing approved Annual Standards and Specifications. • The Locality: The local government (locality) is the VSMP Authority and administers permit coverage for all other projects not covered by DEQ as listed above. For these projects, please submit permit forms directly to the Local VSMP Authority. A list of Local VSMP Authorities is available on DEQ's website here: Local VSMP Authority List. www.deg.virginia.gov/Progra mslwate r/Sto rmwaterM a nageme nt/VSM PPerm its/ConstructionGenera I Perm it. aspx Email the completed and signed form to: constructiongp@deg.virginia.gov Rev 11/2020 PAGE 6 16 Section 2. Notice of general permit coverage (This notice is to be posted near the main entrance according to 9VAC25-880-70, Part II, section C.) (Provide a copy of the DEQ coverage letter when obtained) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 3. Nature of activity (Provide a detailed narrative of the construction activities. Include or reference a construction schedule and sequence. Include any phasing.) 1.0 SITE DESCRIPTION a. Nature of the Construction Activity This property is located on a commercial parcel with an existing commercial building at 1636 Seminole Trail in Albemarle County, Virginia. This project proposes to redevelop the existing parcel for a new commercial building. The subject parcel site is 1.32 acres and the area of land disturbance required for proposed construction is approximately 1.31 acres. Approximately 0.31 acres will be permanently seeded. Sediment control for the proposed construction activities shall be in accordance with the policies and requirements of the Virginia Erosion & Sediment Control Field Handbook. As required, this plan proposes erosions and sediment control in two separate phases. A construction sequence is provided detailing the proposed phasing of erosion and sediment control before and during construction. b. Intended Sequence of Major Soil -Disturbing Activities This project includes the attached general construction elements in order of the sequence of construction 'See attached" c. Estimated Total Site Area to be Disturbed The construction limits encompass an area of disturbance that is approximately 1.31 acres of land Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County PHASE I: PHASE I OPERATIONS WILL INCLUDE THE INSTALLATION OF MEASURES TO CONTROL EROSION AND SILTATION ASSOCIATED WITH INITIAL CLEARING AND GRADING OPERATIONS. AS REQUIRED, PHASE I CONTROLS SHALL BE ESTABLISHED IN A ONE (1) STEP PROCESS: 1. CONTRACTOR TO NOTIFY ALBEMARLE COUNTY AT LEAST 48 HOURS PRIOR TO THE START OF CONSTRUCTION AND OBTAIN A LAND DISTURBANCE PERMIT. 2. OWNER, CONTRACTOR, RESPONSIBLE LAND DISTURBER, AND PROJECT ENGINEER SHALL ATTEND A PRE -CONSTRUCTION MEETING WITH THE COUNTY INSPECTOR PRIOR TO STARTING ANY LAND DISTURBING ACTIVITIES. OBTAIN A GRADING PERMIT AND VDOT ENTRANCE PERMIT PRIOR TO THE PRE -CONSTRUCTION MEETING. 3. AREAS WHICH ARE TO BE DISTURBED SHALL BE CLEARLY MARKED IN THE FIELD. 4. INSTALL PERIMETER CONTROLS INCLUDING SILT FENCE AND SAFETY FENCE. INSTALL INLET PROTECTION. 5. INSTALL CONSTRUCTION ENTRANCE (CE) AS SHOWN ON PHASE I PLAN. PROVIDE THE CONSTRUCTION ENTRANCE WITH WASH RACKS THAT DRAIN TO AN APPROPRIATE SETTLING AREA AND ESTABLISH A PROTECTED STAGING AND EQUIPMENT AREA. ALL HARD SURFACE ROADS SHALL BE CLEANED AT THE END OF THE DAY AND SOURCE OF WATER SHALL BE ESTABLISHED ON SITE. 6. APPLY TEMPORARY STABILIZATION TO ALL DISTURBED AREAS IN ACCORDANCE WITH THE APPLICABLE MINIMUM STANDARDS FOUND IN 9VAC25-850-40. 7. EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE INSPECTED AND REPAIRED AT THE END OF EACH DAY. 8. CONTRACTOR TO ENSURE THE THE COUNTY EROSION AND SEDIMENT CONTROL INSPECTOR HAS VERIFIED ALL PHASE I E&S MEASURES ARE CORRECTLY INSTALLED AND PHASE I WORK IS COMPLETED PRIOR TO THE START OF PHASE II. PHASE II: THE PHASE II SEDIMENT CONTROL MEASURES ARE INTENDED FOR THE FINAL STAGES OF SITE DEVELOPMENT. PHASE I CONTROL MEASURES, WHICH ARE NOT IN CONFLICT WITH FINAL CONSTRUCTION AND PROVIDE EFFECTIVE CONTROL, SHALL REMAIN IN PLACE FOR FINAL DEVELOPMENT. THE CONTRACTOR AND THE RESPONSIBLE LAND DISTURBER SHALL FOLLOW THE COUNTY INSPECTOR'S DIRECTION IN PROVIDING ADDITIONAL CONTROL MEASURES NEEDED DURING THE DEVELOPMENT PROCESS, TO ENSURE THAT SEDIMENT IS PREVENTED FROM POLLUTING OFF -SITE AREAS, STREAMS AND/OR PROTECTED ON -SITE AREAS. 1. CONTRACTOR TO NOTIFY ALBEMARLE COUNTY AT LEAST 48 HOURS PRIOR TO THE START OF CONSTRUCTION AND OBTAIN A LAND DISTURBANCE PERMIT. 2. OWNER, CONTRACTOR, RESPONSIBLE LAND DISTURBER, AND PROJECT ENGINEER SHALL ATTEND A PRE -CONSTRUCTION MEETING WITH THE COUNTY INSPECTOR PRIOR TO STARTING ANY LAND DISTURBING ACTIVITIES. OBTAIN A GRADING PERMIT AND VDOT ENTRANCE PERMIT PRIOR TO THE PRE -CONSTRUCTION MEETING. 3. AREAS WHICH ARE TO BE DISTURBED SHALL BE CLEARLY MARKED IN THE FIELD. 4. INSTALL PERIMETER CONTROLS INCLUDING SILT FENCE AND SAFETY FENCE. INSTALL INLET PROTECTION. 5. INSTALL CONSTRUCTION ENTRANCE (CE) AS SHOWN ON PHASE I PLAN. PROVIDE THE CONSTRUCTION ENTRANCE WITH WASH RACKS THAT DRAIN TO AN APPROPRIATE SETTLING AREA AND ESTABLISH A PROTECTED STAGING AND EQUIPMENT AREA. ALL HARD SURFACE ROADS SHALL BE CLEANED AT THE END OF THE DAY AND SOURCE OF WATER SHALL BE ESTABLISHED ON SITE. 6. APPLY TEMPORARY STABILIZATION TO ALL DISTURBED AREAS IN ACCORDANCE WITH THE APPLICABLE MINIMUM STANDARDS FOUND IN 9VAC25-850-40. 7. EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE INSPECTED AND REPAIRED AT THE END OF EACH DAY. 8. CONTRACTOR TO ENSURE THE THE COUNTY EROSION AND SEDIMENT CONTROL INSPECTOR HAS VERIFIED ALL PHASE I E&S MEASURES ARE CORRECTLY INSTALLED AND PHASE I WORK IS COMPLETED PRIOR TO THE START OF PHASE II. Section 4. Erosion and Sediment Control Plan. (Provide a reduced, 11x17 copy of the latest Erosion and Sediment Control Plan. Do not reference only.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County I\ I \IZANDS N/F ; 1 MPB, INC. D.B.';5476 PG. 471 PIN- 06100-00-00-12000 Co.- HC (, !IOHWAY COMMERCIAL) I I USE- WAREHOUSE 1 , I ` I \ 1 U I 1 I I I I I I 1 I I I I I 1 I I 1 I 50 0, \ 1`\ `�` `` `` \ •``\ `\ d9\ \\ i \ // leji A i,'\`1f1 1 �l 1; ,II / �BEN�NAIAR, BE i -f 1,11,11 SET ELEI!=499.18 TREES (78R) RR \ I i If �' I ' i it ' CLEARANCE I %1 \/ ; \ BRNE 7NRU� \\ \A/ENV (TBR) IDS :! / 1 \`, 11 I `\\ `\\ \\ 1 I ``\\ `. \ , � • `\ `\ \ �\�� ; / E.t:�7NG TREES (7 I1 I LANs ,S N/F I S S C ItACOU(S/TIONS'. /NC. \ : ` \ � \ tl D.B. 1429`\Pc. 3iGt \ \ . `\ . �\ ..\; / 20 I )DIN.- 06100-00�00-120LZ 1 ZONED.• HC (H/GHWAX COMME/�G'/ALA I USE. SELF STORAGE ' \ IRON ROD 3' ` FOUND 1 --505— �\ ' I � \ �`\ 505 \ I `f I ----- 505' f----------------- - - I f ' ________________ / \ / - ___________` `_ ____ ________ _- ---- LANDSY -------- WILCOHESS PG / P-Nl 05100 bO-G ZONED HC�H(GHWAY -- `USE.• FEAST, ----------------------------- SULL/VAN, W/LLIAM EDWARD & ✓OHN A F D.B. 1095 PG. 237 PIN.- 06100-00-00-120WO ZONED.- HC rHIGHWAY CODUERC/AL) USE: COMMERCIAL , VIRGINIA UNIFORM CODING SYSTEM FOR EROSION AND SEDIMENT CONTROL PRACTICES NO. TITLE KEY SYMBOL I i � i -- 501'-' ------ 506 ' i ---------------------------------------------- , ------------------ ---------- ------------------ 1 \ EROSION AND SEDIMENT CONTROL NOTES: 1. SEE SHEET C-603 FOR SEQUENCE OF CONSTRUCTION. 2. OFFSITE BORROW OR HAUL TO BE FROM AN APPROVED SITE. \ CURB INLET \ \ \RIM=50233 \\\` - OUT \ \ �\°°GONCR�TEWASH .s` REA f 20' s00 /TARP MANHOLE R/ NOM=4945 C � /RB INLET 1s=499.34 V 49000 EE DEMO NOTE 4) S4/Y CUT SOILS TABLE SYMBOL SOIL NAME SLOPES HSG 88 UDORTHENTS, LOAMY 2-25% D N $917,125 / -- r, z E w W w rn z f7 ZjzWw0 z w10OW5 OZ W W 2 5 W zrCO�prrw Fw¢x Wz >ZOW0O aiD2aQZQ zc42WzF1- 0zQ<a 0of Of J 0 U) W Z z aQ > aJ of 5 w I— V5 REVISIONS REV DATE COMMENT CxECxeD er 1 01/21/2022 PER COUNTY BSC COMMENTS RTY • 1 Know what's below. Call before you dig. ALWAYS CALL 811 It's fast. It's free. It's the law. NOT APPROVED FOR CONSTRUCTION THIS DRAWING IS INTENDED FOR MUNICIPAL AND/OR AGENCY REVIEW AND APPROVAL. IT IS NOT INTENDED AS A CONSTRUCTION DOCUMENT UNLESS INDICATED OTHERWISE. PROJECT No.: V211201 DRAWN BY: DSH CHECKED BY: RTY DATE: 8/27/2021 CAD I.D.: GRAD -1 PROJECT: VIRGINIA STORMWATER MANAGEMENT PLAN FOR DO�Qa�aQ PROPOSED LOCATION 1636 SEMINOLE TRAIL ALBERMARLE COUNTY CHARLOTTESVILLE, VIRGINIA 22901 BOHLERP 2150 ASHLAND RD. SUITE 200 RICHMOND, VIRGINIA23146 Phone: (804)893-8200 VA@BohlerEng.com Lic. No. 0402056625 6, 01/21/2022 4 9=4.86 i AV / INVA=4B5. 96 y � - - SHEET TITLE: JCJF��o�' - LEGEND EROSION AND & °0 ��` / — — — — • — — — PROP SAWCUT SEDIMENT SANh�CC� \ `��° Q(���pp'L�Q�� --- �4.51 t e (. kh _\ ----- LOW L04V— LIMIT OF WORK CONTROL PLAN L 19 ♦Avoo� P\°\ LOD LOD LIMIT OF DISTURBANCE PHASE 1 p9 ,C \ G g99 �c�4%0 �° SHEET NUMBER: A00' JOB `oy P (�� EXISTING DRAINAGE DIVIDES 6 O w 20 10 20 P5 1 -2o REVISION 1 - 01/21/2022 ti I\ \ \ \ ``ANDS N/F IN 1 MPB, INC. D.B.'',5476 PG. 471 PIN- 06100-00-00-12000 Co.- HC (, !IOHWAY COMMERC/ALJ '1 USE- WAREHOUSE 1 ; I ` I \ 1 1 1 1 v I 1 I , I I I I , I , I , , , , , , , SULL/VAN, W/LLIAM EDWARD & ✓OHN A F D.B. 1095 PG. 237 PIN.- 06100-00-00-120WO ZONED.- HC rHIGHWAY CODUERC/ALJ USE: COMMERCIAL , / Spa / 3 \ p6 , / 1 —5p5------------ ------------------------- - VIRGINIA UNIFORM CODING SYSTEM FOR EROSION AND SEDIMENT CONTROL PRACTICES NO. TITLE KEY SYMBOL n 1 IN, \ ZONED 06/ - - - - ' ' Ps �� \ �� HC �1l ���� Y COUMERC/ALJ Sd -------- ' / . - li , �``. �` / / A i i `` `, `� i 0STM A-80 o �C. - \ \ MERCIAL CONTROL NOTE C - 0.90 / 1. SEE SHEET C-603 FOR SEQUENCE OF CONSTRUCTION. CM ® \ 2. OFFSITE BORROW OR HAUL TO BE FROM AN APPROVED SITE. A = 0.24 A / i i i i , / IF y IN `� `\\ - '' /VA OAP$. DETERGEN J. SOLVENTS, ' \ AND WASTE WATER OF N` ^`� , , CONSTRUCT ON AREA AMENTIT,IE$ `-__- -- \ \ \ �l A 70 ' AZAROOUSH R$ ' ,`N \ /i STORAGE R6P. SITE AREA = AC (R)1.314 (M) \ \ \ \ `� `` x ' II' ®HI LE FUELING AREA \ \ \ SPILL TO RD- T INM NT \ IN 0 STM A-50 IP °°', C/O' �\ \ \ CURB INLET �� R/M=50233 .90 IN `\ \ ``I\` ``I\I \ I``. . � �'``.:` A30 •' ` A 022 AC `.\ .s/_` \\ / NCRETE WASH UT X T RD- 1 AREA \, A=0.09AC STAGIR IP � p AREA& \ �' \•\ \• , RD-3 \ Q TOCKPILE AREA A=0.05AC 1 • PORTABLE , N N ,1 I 1 `IIg-1�S `I `, I `I ' b �I I I , `,`I 0 ARAMP I/ 1 ( ',/ a". %/�.ivlY 1' I ``' Oy�°PMANHOLE NO ACCESS P` P�KEY5TON6 `I ``I` • :\`•`;.• 1 / / \\ 0� ' B10 $ �0�/ `o R/M=50005 11 I`I II\ LANb,S N/F i \ RE WITTHNG�WQNLGLII ` \\\ 11 / ` S C/0 I S S C ACQbS/T/ON5: /NC. I\ I I 1 _496 ---- -- \ a i, /TARP MANHOLE I � \ COLOR: PALOMINO'- C/0 rn I , \ HEIGHT: d8' \ ', I OB. 14291`PG 3✓'l% \ (MAX.( TO BE DESIGNED-,,NO�C�\ 'll I )DIN.- 06100-00�00-120Q1 \ BY OTHERS \ ` II` `� \ ` \I`I �� ' / vh9 �0 R/M=4945 I ZONED. HC (HIGHWAX COUME!?CIALJ / /� ' RM ass 4 I 0 STM A-2 1 `� / /NV=490.00 ,g USE SELF STORAGE \I `, \'� @ / / SEE DEMO NOTE 4 \ �' `�o , SPRIN \\ :\``•I`• A C 0 90 ° PROP S4{Y CUT J IRON ROD- ' IN I FOUND STMSTM C-10 \® \ % T TM EX-499- _` / A=0.08A OP. ' PROP SITE AREA= - ' ' I _ `I`I I`I` , ) 1.314 - - I I n 5 - - --- /I - / - ""pp I twv ---------------- IP ' ' / , , '', P----------------- \ - O Ij , / IN 1 - I------------- --------------- ----------- PG.W/LCOHESS EfE.r R-wl 05100-00-00-120D0``. ' \ —� • a/ If /.CG-12 �•�P �' - - LEGEND __---ZONED HC IV ZQMMERCf9LJ t '`. J - of IP / ,`' 0� ��o / ' �� -- / USE.' F ELF STATIN4, s 0 ' -____ \ IFH >4 \ 9 ----_ — — • — — . — — . — PROP SAWCUT ,' f�ON �7d1.- dn.. off' \ OA , ,- ' 1°�� ONACCE SAN� E,� �8n� _�, O R/M=494.51 `r Q°�A kh �j ----- LOW -LOW` LIMIT OF WORK IN / -°/ ®° CURB wtET (�P LOD LOD LIMIT OF DISTURBANCE /NV=48B99 ��, SOW �V"Q \\ �0 C` , PROR_.SAH'CVT ��PeV�`°y PROPOSED DRAINAGE DIVIDES EX HYDRANT 2 ---- -- ---------- `0 10 20 1 1 - �//tj \ O z E W W W m z 5 Z j z WW0 Z w H 2 W 5W O Z W W 2 j W zrc9�o�m Fw¢x Wz >ZOW00 ai��a<ZQ zc42WzFl- 0zW<a 0of Q J 0 U) W Of z aQ > aJ of 5 W I- V5 REVISIONS REV DATE COMMENT CXECxEO BY 1 01/21/2022 PER COUNTY BSC COMMENTS I RTY • Know what's below. Call before you dig. ALWAYS CALL 811 It's fast. It's free. It's the law. NOT APPROVED FOR CONSTRUCTION THIS DRAWING IS INTENDED FOR MUNICIPAL AND/OR AGENCY REVIEW AND APPROVAL. IT IS NOT INTENDED A$ A CONSTRUCTION DOCUMENT UNLESS INDICATED OTHERWISE. PROJECT NO.: V211201 DRAWN BY: DISH CHECKED BY: RTY DATE: 8/27/2021 CAD I.D.: GRAD -1 PROJECT: VIRGINIA STORMWATER MANAGEMENT PLAN FOR DO�Qa�aQ PROPOSED LOCATION 1636 SEMINOLE TRAIL ALBERMARLE COUNTY CHARLOTTESVILLE, VIRGINIA 22901 BOHLERP 2150 ASHLAND RD. SUITE 200 RICHMOND, VIRGINIA23146 Phone: (804)893-8200 VA@BohlerEng.com rc_Wli e�vl Lic. No. 0402056625 6, 01 /21/2022 .44 SHEET TITLE: EROSION AND SEDIMENT CONTROL PLAN PHASE It SHEET NUMBER C-602 REVISION 1 - 01/21/2022 ti EROSION AND SEDIMENT CONTROL NARRATIVE SEQUENCE OF CONSTRUCTION MINIMUM STANDARDS DESCRIPTION OF SITE THIS PROPERTY IS LOCATED ON AN COMMERCIAL PARCEL WITH AN EXISTING COMMERCIAL BUILDING AT 1636 SEMINOLE TRAIL IN ALBEMARLE COUNTY VIRGINIA. THIS PROJECT PROPOSES TO REDEVELOP THE EXISTING PARCEL FOR A NEW COMMERCIAL BUILDING. THE SUBJECT PARCEL SITE IS 1.32 ACRES AND THE AREA OF LAND DISTURBANCE REQUIRED FOR PROPOSED CONSTRUCTION IS APPROXIMATELY 1.31 ACRES. APPROXIMATELY 0.31 ACRES WILL BE PERMANENTLY SEEDED. SEDIMENT CONTROL FOR THE PROPOSED CONSTRUCTION ACTIVITIES SHALL BE IN ACCORDANCE WITH THE POLICIES AND REQUIREMENTS OF THE VIRGINIA EROSION & SEDIMENT CONTROL FIELD HANDBOOK. AS REQUIRED, THIS PLAN PROPOSES EROSION AND SEDIMENT CONTROL IN TWO SEPARATE PHASES. A CONSTRUCTION SEQUENCE IS PROVIDED DETAILING THE PROPOSED PHASING OF EROSION AND SEDIMENT CONTROL BEFORE AND DURING CONSTRUCTION. EXISTING SITE CONDITIONS 0 THE PROPOSED SITE IS AN EXISTING COMMERCIAL LOT WITH PAVED PARKING AND GRASS AREAS. THE EXISTING SLOPE RANGES FROM 2% TO 12 /o. THE SITE GENERALLY DRAINS FROM NORTHWEST TO SOUTHEAST. CRITICAL EROSION AREAS THERE ARE NO CRITICAL EROSION AREAS KNOWN TO EXIST ON SITE. ADJACENT PROPERTY THE SITE FRONTS ON SEMINOLE TRAIL TO THE EAST AND IS SURROUNDED BY HIGHWAY COMMERCIAL ZONED PROPERTIES ON THE NORTH, SOUTH AND WEST. ADEQUATE OUTFALL ADEQUATE OUTFALL INFORMATION CAN BE FOUND IN THE STORMWATER MANAGEMENT PLAN. OFFSITE AREAS NO OFF -SITE AREAS REQUIRED FOR EXPORT OF MATERIALS ARE ANTICIPATED WITH THE PROJECT. IF EXCAVATED MATERIAL IS GENERATED IT SHALL BE DISPOSED OF IN A LAWFUL MANNER AND THE CONTRACTOR SHALL COORDINATE THE HAUL ROUTE WITH THE JURISDICTIONAL INSPECTOR. IT IS THE CONTRACTORS RESPONSIBILITY TO ENSURE ALL OFF -SITE HAULBORROW AREAS ARE PROPERLY PERMITTED. SOILS THE SOILS ON -SITE, PER THE NRCS WEB SOIL SURVEY, ARE AS FOLLOWS: 88 - UDORTHENTS, LOAMY, 2-25 PERCENT SLOPES HYDROLOGIC SOIL GROUP - D SINKHOLES ARE NOT ANTICIPATED TO AFFECT THE SITE. EROSION CONTROL PROGRAM EROSION CONTROL SHALL BE MAXIMIZED THROUGH RAPID STABILIZATION OF THE DISTURBED AREAS AND BY INSTALLATION OF PERIMETER CONTROLS. NOT MORE THAN 7 CALENDAR DAYS ARE TO ELAPSE WITH ANY DISTURBED AREA REMAINING DENUDED. TEMPORARY COVER, BY SEEDING AND/OR MULCHING, SHALL BE APPLIED TO AREAS THAT WILL BE EXPOSED FOR A PERIOD OF GREATER THAN 7 DAYS, BEFORE PERMANENT STABILIZATION. PERMANENT COVER SHOULD BE PROVIDED OVER ALL DISTURBED AREAS AS SOON AS POSSIBLE UPON ACHIEVING FINAL GRADE, BY MEANS OF SEEDING AND MULCHING, SODDING AND PEGGING, PAVING, OR AS OTHERWISE DIRECTED BY THE PLAN. LIKEWISE, ALL STOCKPILES SHALL BE STABILIZED WITHIN 7 DAYS OF ACHIEVING FINAL GRADES. UTILITY TRENCHES SHALL BE SEEDED AND MULCHED WITHIN 7 DAYS AFTER BACKFILLING TO THE PROPOSED GRADE. SEDIMENT CONTROL PROGRAM SEDIMENT CONTROL SHALL BE ACCOMPLISHED THROUGH RAPID STABILIZATION AND BY THE INSTALLATION OF MECHANICAL DEVICES, AS SHOWN ON THE PHASE I PLAN: STRUCTURAL PRACTICES 1. SAFETY FENCE - 3.01 TO BE PROVIDED TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. 2. CONSTRUCTION ENTRANCE - 3.02 TEMPORARY CONSTRUCTION ENTRANCES WITH WASH RACKS AND SETTLING AREAS ARE TO BE PROVIDED AT EACH POINT OF ACCESS TO THE SITE FOR THE DURATION OF CONSTRUCTION. THE CONTRACTOR IS TO SUPPLY A WATER SOURCE BY PROVIDING A WATER TRUCKIWATER TANK ONSITE FOR WASHING CONSTRUCTION VEHICLES BEFORE ENTERING THE PUBLIC ROAD. 3. SILT FENCE - 3.05 TO BE PROVIDED FOR INTERCEPTING AND DETAINING SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERATIONS TO PREVENT SEDIMENT FROM LEAVING THE SITE. 4. STORM DRAIN INLET PROTECTION - 3.07 A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET. 5. TEMPORARY SEEDING - 3.31 ESTABLISHMENT OF TEMPORARY VEGETATIVE COVER BY SEEDING WITH APPROPRIATE RAPIDLY GROWING PLANTS ON DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 14 DAYS. 6. PERMANENT SEEDING - 3.32 ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER BY PLANTING SEED ON ROUGH -GRADED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A YEAR OR MORE OR WHERE PERMANENT, LONG-LIVED VEGETATIVE COVER IS NEEDED ON FINE -GRADED AREAS. VEGETATIVE PRACTICES 1. SURFACE ROUGHENING - AREAS TO BE SEEDED SHALL BE LIGHTLY ROUGHENED AND LOOSE TO A DEPTH OF 2" TO 4" PRIOR TO SEEDING. AREAS WHICH HAVE BEEN GRADED AND WILL NOT BE STABILIZED IMMEDIATELY MAY BE ROUGHENED TO REDUCE VELOCITY UNTIL SEEDING TAKES PLACE. 2. TOPSOILING (STOCKPILES) - TOPSOIL WILL BE STRIPPED FROM AREAS TO BE GRADED AND STOCKPILED FOR LATER USE. STOCKPILE ARE TO BE LOCATED ON -SITE IN OPEN SPACE AREAS, AS DEPICTED ON THE PLAN, ARE TO BE STABILIZED WITH TEMPORARY VEGETATION, AND ARE TO BE SURROUNDED AT THE BASE BY SUPER SILT FENCE. 3. TEMPORARY SEEDING - ALL DENUDED AREAS THAT WILL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION IMMEDIATELY FOLLOWING GRADING. SELECTION OF THE SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR THAT IT IS APPLIED. 4. EROSION CONTROL BLANKETS OR MULCH - EROSION CONTROL BLANKETS WILL BE INSTALLED OVER FILL SLOPES WHICH HAVE BEEN BROUGHT TO FINAL GRADE AND SEEDED TO PROTECT THE SLOPES FROM RILL AND GULLY EROSION AND ALLOW THE SEED TO GERMINATE PROPERLY. MULCH (STRAW OR FIBER) WILL BE USED ON RELATIVELY FLAT AREAS AND WILL BE APPLIED AS A SECOND STEP IN THE SEEDING OPERATION. ALL SILTATION CONTROL MEASURES ARE INTENDED TO PREVENT SEDIMENT FROM ENCROACHING INTO ENVIRONMENTALLY SENSITIVE AREAS OR ONTO ADJACENT PROPERTIES AND ROADWAYS. THE FAUQUIER COUNTY INSPECTOR HAS THE AUTHORITY TO ADD OR DELETE EROSION AND SEDIMENT CONTROLS IN THE FIELD AS SITE CONDITIONS WARRANT. IN ADDITION, NO SEDIMENT TRAPS OR SEDIMENT BASINS MAY BE REMOVED WITHOUT THE PRIOR APPROVAL OF THE COUNTY INSPECTOR. UNLESS OTHERWISE NOTED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK (VESCH). THE MINIMUM STANDARDS OF VESCH SHALL BE ADHERED TO UNLESS OTHERWISE WAIVED OR APPROVED BY A VARIANCE. PHASE I: PHASE I OPERATIONS WILL INCLUDE THE INSTALLATION OF MEASURES TO CONTROL EROSION AND SILTATION ASSOCIATED WITH INITIAL CLEARING AND GRADING OPERATIONS. AS REQUIRED, PHASE I CONTROLS SHALL BE ESTABLISHED IN A ONE (1) STEP PROCESS: 1. CONTRACTOR TO NOTIFY ALBEMARLE COUNTY AT LEAST 48 HOURS PRIOR TO THE START OF CONSTRUCTION AND OBTAIN A LAND DISTURBANCE PERMIT. 2. OWNER CONTRACTOR RESPONSIBLE LAND DISTURBER AND PROJECT ENGINEER SHALL ATTEND A PRE -CONSTRUCTION MEETING WITH THE COUNTY INSPECTOR PRIOR TO STARTING ANY LAND DISTURBING ACTIVITIES. OBTAIN A GRADING PERMIT AND VDOT ENTRANCE PERMIT PRIOR TO THE PRE -CONSTRUCTION MEETING. 3. AREAS WHICH ARE TO BE DISTURBED SHALL BE CLEARLY MARKED IN THE FIELD. 4. INSTALL PERIMETER CONTROLS INCLUDING SILT FENCE AND SAFETY FENCE. INSTALL INLET PROTECTION. 5. INSTALL CONSTRUCTION ENTRANCE C AS SHOWN ON PHASE I PLAN. PROVIDE THE CONSTRUCTION ENTRANCE WITH WASH RACKS THAT DRAIN TO AN APPROPRIATE SETTLING AREA AND ESTABLISH A PROTECTED STAGING AND EQUIPMENT AREA. ALL HARD SURFACE ROADS SHALL BE CLEANED AT THE END OF THE DAY AND SOURCE OF WATER SHALL BE ESTABLISHED ON SITE. 6. APPLY TEMPORARY STABILIZATION TO ALL DISTURBED AREAS IN ACCORDANCE WITH THE APPLICABLE MINIMUM STANDARDS FOUND IN 9VAC25-850-40. 7. EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE INSPECTED AND REPAIRED AT THE END OF EACH DAY. 8. CONTRACTOR TO ENSURE THE THE COUNTY EROSION AND SEDIMENT CONTROL INSPECTOR HAS VERIFIED ALL PHASE I E&S MEASURES ARE CORRECTLY INSTALLED AND PHASE I WORK IS COMPLETED PRIOR TO THE START OF PHASE 11. PHASE It: THE PHASE II SEDIMENT CONTROL MEASURES ARE INTENDED FOR THE FINAL STAGES OF SITE DEVELOPMENT. PHASE I CONTROL MEASURES, WHICH ARE NOT IN CONFLICT WITH FINAL CONSTRUCTION AND PROVIDE EFFECTIVE CONTROL SHALL REMAIN IN PLACE FOR FINAL DEVELOPMENT. THE CONTRACTOR AND THE RESPONSIBLE LAND DISTURBER SHALL FOLLOW THE COUNTY INSPECTOR'S DIRECTION IN PROVIDING ADDITIONAL CONTROL MEASURES NEEDED DURING THE DEVELOPMENT PROCESS, TO ENSURE THAT SEDIMENT IS PREVENTED FROM POLLUTING OFF -SITE AREAS, STREAMS AND/OR PROTECTED ON -SITE AREAS. 1. INSTALL PHASE II SILT FENCE AND SAFETY FENCE AS SHOWN ON THE PHASE II E&S CONTROL PLAN. 2. BEGIN ROUGH GRADING. 3. TEMPORARILY STABILIZE THROUGHOUT CONSTRUCTION AND IMMEDIATELY FOLLOWING THE COMPLETION OF THE MOST RECENT LAND DISTURBING ACTIVITY ANY DISTURBED AREAS INCLUDING MATERIALS STOCKPILES THAT ARE SCHEDULED OR LIKELY TO REMAIN INACTIVE FOR 7 DAYS OR MORE. 4. CONSTRUCT ENTRANCE AND PROPOSED PARKING AREAS. 5. INSTALL INLET PROTECTION AS REQUIRED AS PROPOSED UTILITIES ARE INSTALLED. 6. OBTAIN COUNTY E&S INSPECTORS APPROVAL PRIOR TO THE REMOVAL OF ANY SEDIMENT CONTROLS. 7. OBTAIN CONCURRENCE FROM THE INSPECTOR THAT THE SITE HAS BEEN FULLY STABILIZED AND ALL CONSTRUCTION HAS BEEN COMPLETED. STABILIZE ANY AREAS DISTURBED BY THE REMOVAL OF TEMPORARY EROSION CONTROL MEASURES. PERMANENT STABILIZATION ALL AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH PERMANENT SEEDING IMMEDIATELY FOLLOWING FINISHED GRADING. SEEDING SHALL BE DONE WITH KENTUCKY 31 TALL FESCUE ACCORDING TO STD. & SPEC 3.32, PERMANENT SEEDING, OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. EROSION CONTROL BLANKETS WILL BE INSTALLED OVER FILL SLOPES, WHICH HAVE BEEN BROUGHT TO FINAL GRADE AND HAVE BEEN SEEDED. THIS WILL PROTECT THE SLOPES FROM RILL AND GULLY EROSION AND ALLOW THE SEED TO GERMINATE PROPERLY. MULCH (STRAW OR FIBER) WILL BE USED ON RELATIVELY FLAT AREAS. IN ALL SEEDING OPERATIONS, SEED, FERTILIZER AND LIME WILL BE APPLIED PRIOR TO MULCHING. APPROXIMATELY 3.75 ACRES OF THE SUBJECT SITE SHALL BE PERMANENTLY SEEDED. STREAM BANK STABILIZATION STREAM BANK STABILIZATION IS NOT REQUIRED FOR THIS SITE. STORMWATER RUNOFF CONSIDERATIONS CALCULATIONS PROVIDED IN STORMWATER MANAGEMENT PLAN. MAINTENANCE PROGRAM IN GENERAL ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAINFALL EVENT. THE FOLLOWING MEASURES WILL BE CHECKED IN PARTICULAR. SAFETY FENCE: INSPECTIONS SHALL BE CONDUCTED REGULARLY TO CHECK FOR WEATHER -RELATED OR OTHER DAMAGE; REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. ALL ACCESS POINTS MUST BE SECURE AT THE END OF EACH WORKING DAY AND LOCKING DEVICES MUST BE REPLACED OR REPAIRED AS NECESSARY. CONSTRUCTION ENTRANCES: INSPECTIONS SHALL BE MADE DAILY FOR ENTRANCE INTEGRITY; REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. THE CONSTRUCTION ENTRANCE IS TO BE REGULARLY MAINTAINED TO INCLUDE SCARIFICATION AND ADDITION OF FRESH STONE AS NEEDED. SILT FENCE: INSPECTIONS SHALL BE MADE DAILY FOR FENCE INTEGRITY; REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. SEDIMENT IS TO BE REMOVED WHEN DEPOSITS REACH ONE-HALF THE FENCE HEIGHT. TEMPORARY AND PERMANENT SEEDING: SEEDED AREAS SHALL BE CHECKED REGULARLY TO ASSURE A GOOD STAND OF GRASS IS BEING MAINTAINED. AREAS THAT FAIL TO ESTABLISH VEGETATIVE COVER ADEQUATE TO PREVENT RILL EROSION SHALL BE RE -SEEDED AS SOON AS THEY ARE IDENTIFIED. NO UNPROTECTED, DISTURBED AREA SHALL DRAIN TO ROADWAY PAVEMENTS SUCH THAT THE SUB BASE, BASE, OR WEARING SURFACE ARE CONTAMINATED BY SILT TRAPPED AT LOW POINTS OR INLETS. DEVICES SHOWN ARE TO BE CONSIDERED AS MINIMUM EROSION AND SEDIMENTATION CONTROLS. ADDITIONAL CONTROLS MAY BE NECESSARY DUE TO CONTRACTOR'S PHASING OR OTHER UNANTICIPATED CONDITIONS. IT IS THE CONTRACTOR'S RESPONSIBILITY TO PROVIDE ADDITIONAL DEVICES AS NECESSARY IN ORDER TO CONTROL EROSION AND SEDIMENTATION. EROSION AND SEDIMENTATION MEASURES SHALL BE INSTALLED AND MAINTAINED IN ACCORDANCE WITH THE STANDARDS AND SPECIFICATIONS IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, THIRD EDITION. THE CONTRACTOR IS TO PROVIDE ADEQUATE MEANS OF CLEANING AND REMOVING ALL LAYING DUST AS NECESSARY BY APPLYING EITHER MOISTURE, CALCIUM CHLORIDE, OR OTHER APPROVED MATERIALS ALONG THOSE SECTIONS OF THE PROJECT ADJACENT TO EXISTING DWELLINGS OR PUBLIC ACCESS. CONTROLS MAY BE REMOVED AFTER THE AREAS ABOVE THEM HAVE BEEN STABILIZED AND WITH THE APPROVAL OF THE COUNTY INSPECTOR. SPECIAL CARE NOTES IT IS THE INTENT OF THIS PLAN TO PRECLUDE SEDIMENT POLLUTION FROM LEAVING THE DELINEATED CONSTRUCTION ZONES. THE CONTRACTOR AND THE RESPONSIBLE LAND DISTURBER SHALL TAKE SPECIAL CARE TO PREVENT CONSTRUCTION DEBRIS AND MUD FROM BEING TRACKED ONTO SURROUNDING PUBLIC AND PRIVATE ROADS. CONSTRUCTION TRAFFIC SHALL ONLY ENTER AND EXIT THE CONSTRUCTION SITE VIA DESIGNATED LOCATIONS, WHICH HAVE WORKING CONSTRUCTION TRAFFIC WASH RACKS. THE CONTRACTOR AND RESPONSIBLE LAND DISTURBER SHALL TAKE SPECIAL CARE TO PROTECT THE EXISTING VEGETATION AND STREAMS OUTSIDE OF THE DESIGNATED LIMITS OF WORK SHOWN ON THE PLANS. GENERAL EROSION AND SEDIMENT CONTROL NOTES: 1. UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 2. 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. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING AND GRADING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLANS 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 AS NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10. CONTRACTOR MUST CONTACT THE COUNTY ARBORIST PRIOR TO THE INSTALLATION OF TREE PROTECTION AND PLANT MATERIAL. 11. THE CONTRACTOR SHALL PROVIDE ADEQUATE MEANS OF CLEANING MUD FROM TRUCKS AND/OR OTHER EQUIPMENT PRIOR TO ENTERING THE PUBLIC RIGHT-OF-WAY. IT IS THE CONTRACTOR'S RESPONSIBILITY TO CLEAR THE STREETS AND TAKE WHATEVER MEASURES NECESSARY TO ENSURE THAT THE STREETS ARE MAINTAINED IN A CLEAN AND DUST -FREE CONDITION AT ALL TIMES. 12. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO PERFORM THE WORK IN SUCH A MANNER AS TO PREVENT THE WASHING OF ANY TOPSOIL OR DEBRIS ONTO ADJACENT PROPERTIES. 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 BACK FILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION. E. RE -STABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS. F. APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH. GENERAL LAND CONSERVATION & STABILIZATION NOTES: 1. NO DISTURBED AREA WHICH IS NOT ACTIVELY BEING WORKED SHALL REMAIN DENUDED FOR MORE THAN 7 CALENDAR DAYS UNLESS OTHERWISE AUTHORIZED BY THE DIRECTOR. 2. ALL E&S CONTROL MEASURES APPROVED WITH THE PHASE I E&S CONTROL PLAN SHALL BE PLACED AS THE FIRST STEP IN GRADING. 3. ALL STORM AND SANITARY SEWER LINES NOT IN STREETS SHALL BE SEEDED AND MULCHED WITHIN 7 DAYS AFTER BACKFILL. NO MORE THAN 500, SHALL BE OPEN AT ANY ONE TIME. 4. ELECTRIC, TELEPHONE AND GAS SUPPLY TRENCHES SHALL BE COMPACTED, SEEDED AND MULCHED WITHIN 7 DAYS AFTER BACKFILL. 5. ALL TEMPORARY EARTH BERMS, DIVERSIONS AND SEDIMENT CONTROL DAMS SHALL BE SEEDED AND MULCHED FOR TEMPORARY VEGETATIVE COVER IMMEDIATELY (AS SOON AS POSSIBLE, BUT NOT LATER THAN 48 HORS) AFTER COMPLETION OF GRADING. STRAW OR HAY MULCH IS REQUIRED. ALL SOIL STOCKPILES SHALL BE SEEDED AND MULCHED WITHIN 7 DAYS AFTER GRADING. 6. ANY DISTURBED AREA NOT COVERED BY NOTE #1 ABOVE AND NOT PAVED, SODDED OR BUILT UPON BY NOVEMBER 1, OR DISTURBED AFTER THAT DATE, SHALL BE MULCHED IMMEDIATELY WITH HAY OR STRAW MULCH AT THE RATE OF 2 TONS/ACRE (4483 KG/HA) AND OVER -SEEDED BY APRIL 15. 7. AT THE COMPLETION OF ANY PROJECT CONSTRUCTION AND PRIOR TO BOND RELEASE, ALL TEMPORARY SEDIMENT CONTROLS SHALL BE REMOVED AND ALL DENUDED AREAS SHALL BE STABILIZED. 8. CONTRACTOR TO PROVIDE DOCUMENTATION SHOWING SOURCE OF OFF -SITE FILL AND TESTING RESULTS TO GEOTECHNICAL ENGINEER TO DOCUMENT CAPABILITY OF FILL TO MEET COMPACTION REQUIREMENTS. MS-1: FOLLOWING INITIAL SOIL DISTURBANCE OR REDISTURBANCE PERMANENT OR TEMPORARY STABILIZATION SHALL BE COMPLETED WITHIN: 1 SEVEN CALENDAR DAYS AS TO THE SURFACE OF ALL PERIMETER DIKES, SWALES, DITCHES, PERIMETER SLOPES, AND ALL SLOPES GREATER THAN 3 HORIZONTAL TO 1 VERTICAL (3:1); AND 2) SEVEN DAYS AS TO ALL OTHER DISTURBED OR GRADED AREAS UPON REACHING FINAL GRADE OR THE SITE BEING IDLE. MS-2: TEMPORARY SOIL STOCKPILES SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING MEASURES. PROVIDE TEMPORARY PROTECTION AND PERMANENT STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS WELL AS SOIL TRANSPORTED FROM THE PROJECT SITE. MS-3: A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMANENTLY STABILIZED. PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT IN THE OPINION OF THE ARCHITECT/ENGINEER IS UNIFORM MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION. MS-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 OR TIMBERING TAKES PLACE. MS-5: STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. MS-6: SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRAP OR BASIN. A. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA AND THE TRAP SHALL ONLY CONTROL DRAINAGE AREAS LESS THAT THREE ACRES. B. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW FROM DRAINAGE AREAS GREATER THAN OR EQUAL TO THREE ACRES SHALL BE CONTROLLED TO ACCOMMODATE THE ANTICIPATED SEDIMENT LOADING FROM THE LAND -DISTURBING ACTIVITY. THE OUTFALL DEVICE OR SYSTEM DESIGN SHALL TAKE INTO ACCOUNT THE TOTAL DRAINAGE AREA FLOWING THROUGH THE DISTURBED AREA TO BE SERVED BY THE BASIN. MS-7: CUT AND FILL SLOPES SHALL BE CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. SLOPES THAT ARE FOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED. MS-8: CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME OR SLOPE DRAIN STRUCTURE. MS-9: WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED. MS-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. MS-11: BEFORE STORM WATER CONVEYANCE CHANNELS ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL. MS-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. NONERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS. MS-1 3: WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES MORE THAN TWICE IN ANY SIX-MONTH PERIOD, A TEMPORARY STREAM CROSSING CONSTRUCTED OF NONERODIBLE MATERIALS SHALL BE PROVIDED. MS-14: ALL APPLICABLE FEDERAL, STATE AND LOCAL REGULATIONS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET. MS-1 5: THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY FOLLOWING AFTER WORK IN THE WATERCOURSE IS COMPLETED. MS-16: UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA: A. NO MORE THAN 500 LINEAR FEET OF TRENCH SHALL 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 OFFSITE PROPERTY. D. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS. E. APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH. MS-1 7: WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL 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. MS-1 8: 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 AUTHORITY HAVING JURISDICTION. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. MS-1 9: 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: A. CONCENTRATED STORMWATER RUNOFF LEAVING A DEVELOPMENT SITE SHALL BE DISCHARGED DIRECTLY INTO AN ADEQUATE NATURAL OR MAN-MADE RECEIVING CHANNEL, PIPE OR STORM SEWER SYSTEM. FOR THOSE SITES WHERE RUNOFF IS DISCHARGED INTO A PIPE OR PIPE SYSTEM, DOWNSTREAM STABILITY ANALYSES AT THE OUTFALL OF THE PIPE OR PIPE SYSTEM SHALL BE PERFORMED. B. ADEQUACY OF ALL CHANNELS AND PIPES SHALL BE VERIFIED IN THE FOLLOWING MANNER: (1) THE APPLICANT SHALL DEMONSTRATE THAT THE TOTAL DRAINAGE AREA TO THE POINTS OF ANALYSIS WITHIN THE CHANNEL IS ONE HUNDRED TIMES GREATER THAN THE CONTRIBUTING DRAINAGE AREA OF THE PROJECT IN QUESTION; OR (2) (A) NATURAL CHANNELS SHALL BE ANALYZED BY THE USE OF A TWO-YEAR STORM TO VERIFY THAT STORMWATER WILL NOT OVERTOP CHANNEL BANKS NOR CAUSE EROSION OF CHANNEL BED BANKS. (B) ALL PREVIOUSLY CONSTRUCTED MAN-MADE CHANNELS SHALL BE ANALYZED BY THE USE OF A TEN-YEAR STORM TO VERIFY THAT STORMWATER WILL NOT OVERTOP ITS BANKS AND BY THE USE OF A TWO-YEAR STORM TO DEMONSTRATE THAT STORMWATER WILL NOT CAUSE EROSION OF CHANNEL BED OR BANKS; AND (C) PIPES AND STORM SEWER SYSTEMS SHALL BE ANALYZED BY THE USE OF A TEN-YEAR STORM TO VERIFY THAT STORMWATER WILL BE CONTAINED WITHIN THE PIPE OR SYSTEM. C. IF EXISTING NATURAL RECEIVING CHANNELS OR PREVIOUSLY CONSTRUCTED MAN-MADE CHANNELS OR PIPES ARE NOT ADEQUATE, THE APPLICANT SHALL: (1) IMPROVE THE CHANNELS TO A CONDITION WHERE A TEN-YEAR STORM WILL NOT OVERTOP THE BANKS AND A TWO-YEAR STORM WILL NOT CAUSE EROSION TO THE CHANNEL BED OR BANKS; OR (2) IMPROVE THE PIPE OR PIPE SYSTEM TO A CONDITION WHERE THE TEN-YEAR STORM IS CONTAINED WITHIN THE APPURTENANCES; OR (3) DEVELOP A SITE DESIGN THAT WILL NOT CAUSE THE PRE -DEVELOPMENT PEAK RUNOFF RATE FROM A TWO-YEAR STORM TO INCREASE WHEN RUNOFF OUTFALLS INTO A NATURAL CHANNEL OR WILL NOT CAUSE THE PRE -DEVELOPMENT PEAK RUNOFF RATE FROM A TEN-YEAR STORM TO INCREASE WHEN RUNOFF OUTFALLS INTO A MAN-MADE CHANNEL; OR (4) PROVIDE A COMBINATION OF CHANNEL IMPROVEMENT, STORMWATER DETENTION OR OTHER MEASURES WHICH IS SATISFACTORY TO THE PLAN -APPROVING AUTHORITY TO PREVENT DOWNSTREAM EROSION. D. THE APPLICANT SHALL PROVIDE EVIDENCE OF PERMISSION TO MAKE THE IMPROVEMENTS. E. ALL HYDROLOGIC ANALYSES SHALL BE BASED ON THE EXISTING WATERSHED CHARACTERISTICS AND THE ULTIMATE DEVELOPMENT OF THE SUBJECT PROJECT. F. IF THE APPLICANT CHOOSES AN OPTION THAT INCLUDES STORMWATER DETENTION, HE SHALL OBTAIN APPROVAL FROM THE LOCALITY OF A PLAN FOR MAINTENANCE OF THE DETENTION FACILITIES. THE PLAN SHALL SET FORTH THE MAINTENANCE REQUIREMENTS OF THE FACILITY AND THE PERSON RESPONSIBLE FOR PERFORMING THE MAINTENANCE. G. OUTFALL FROM A DETENTION FACILITY SHALL BE DISCHARGED TO A RECEIVING CHANNEL, AND ENERGY DISSIPATERS SHALL BE PLACED AT THE OUTFALL OF ALL DETENTION FACILITIES AS NECESSARY TO PROVIDE A STABILIZED TRANSITION FROM THE FACILITY TO THE RECEIVING CHANNEL. H. ALL ON -SITE CHANNELS MUST BE VERIFIED TO BE ADEQUATE. I. INCREASED VOLUMES OF SHEET FLOWS THAT MAY CAUSE EROSION OR SEDIMENT ON ADJACENT PROPERTY SHALL BE DIVERTED TO A STABLE OUTLET, ADEQUATE CHANNEL, PIPE OR PIPE SYSTEM, OR TO A DETENTION FACILITY. J. IN APPLYING THESE STORMWATER MANAGEMENT CRITERIA, INDIVIDUAL LOTS OR PARCELS IN A RESIDENTIAL, COMMERCIAL OR INDUSTRIAL DEVELOPMENT SHALL NOT BE CONSIDERED TO BE SEPARATE DEVELOPMENT PROJECTS. INSTEAD, THE DEVELOPMENT, AS A WHOLE, SHALL BE CONSIDERED TO BE A SINGLE DEVELOPMENT PROJECT. HYDROLOGIC PARAMETERS THAT REFLECT THE ULTIMATE DEVELOPMENT CONDITION SHALL BE USED IN ALL ENGINEERING CALCULATIONS. K. ALL MEASURES USED TO PROTECT PROPERTIES AND WATERWAYS SHALL BE EMPLOYED IN A MANNER WHICH MINIMIZES IMPACTS ON THE PHYSICAL, CHEMICAL AND BIOLOGICAL INTEGRITY OF RIVERS, STREAMS AND OTHER WATERS OF THE STATE. L. ANY PLAN APPROVED PRIOR TO JULY 1, 2014, THAT PROVIDES FOR STORMWATER MANAGEMENT THAT ADDRESSES ANY FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS SHALL SATISFY THE FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS IF THE PRACTICES ARE DESIGNED TO (1) DETAIN THE WATER QUALITY VOLUME AND TO RELEASE IT OVER 48 HOURS; (11) DETAIN AND RELEASE OVER A 24-HOUR PERIOD THE EXPECTED RAINFALL RESULTING FROM THE ONE YEAR, 24-HOUR STORM; AND (111) REDUCE THE ALLOWABLE PEAK FLOW RATE RESULTING FROM THE 1.5, 2, AND 10-YEAR, 24-HOUR STORMS TO A LEVEL THAT IS LESS THAN OR EQUAL TO THE PEAK FLOW RATE FROM THE SITE ASSUMING IT WAS IN A GOOD FORESTED CONDITION, ACHIEVED THROUGH MULTIPLICATION OF THE FORESTED PEAK FLOW RATE BY A REDUCTION FACTOR THAT IS EQUAL TO THE RUNOFF VOLUME FROM THE SITE WHEN IT WAS IN A GOOD FORESTED CONDITION DIVIDED BY THE RUNOFF VOLUME FROM THE SITE IN ITS PROPOSED CONDITION, AND SHALL BE EXEMPT FROM ANY FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS AS DEFINED IN ANY REGULATIONS PROMULGATED PURSUANT TO § 62.1-44.15:54 OR 62.1-44.15:65 OF THE ACT. M. FOR PLANS APPROVED ON AND AFTER JULY 1, 2014, THE FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS OF § 62.1-44.15:52 A OF THE ACT AND THIS SUBSECTION SHALL BE SATISFIED BY COMPLIANCE WITH WATER QUANTITY REQUIREMENTS IN THE STORMWATER MANAGEMENT ACT (§ 62.1-44.15:24 ET SEQ. OF THE CODE OF VIRGINIA) AND ATTENDANT REGULATIONS, UNLESS SUCH LAND -DISTURBING ACTIVITIES (1) ARE IN ACCORDANCE WITH PROVISIONS FOR TIME LIMITS ON APPLICABILITY OF APPROVED DESIGN CRITERIA IN 9VAC25-870-47 OR GRANDFATHERING IN 9VAC25-870-48 OF THE VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) REGULATION, IN WHICH CASE THE FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS OF § 62.1-44.15:52 A OF THE ACT SHALL APPLY, OR (11) ARE EXEMPT PURSUANT TO § 62.1-44.15:34 C 7 OF THE ACT. N. COMPLIANCE WITH THE WATER QUANTITY MINIMUM STANDARDS SET OUT IN 9VAC25-870-66 OF THE VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) REGULATION SHALL BE DEEMED TO SATISFY THE REQUIREMENTS OF THIS SUBDIVISION 19. J 0 m (9 Z EE W W W rn Z W ZZ= Z W U W 1-- U-10 Ur ZWLU0 jW Zr(9� of F W Q 2 W Z � woo (n > U J O (n 7 2 Q CD Q Z Q zU)2 W ZFH 0of zW< 0 Q U H a Q J D U) W Z Z d Q > aJ 5 W I- rn REVISIONS REV I DATE I COMMENT CHECKED BY 1 01/21/2022 PER COUNTY BSC COMMENTS RTY • Know what's below. Call before you dig. ALWAYS CALL 811 It's fast. It's free. It's the law. NOT APPROVED FOR CONSTRUCTION THIS DRAWING IS INTENDED FOR MUNICIPAL AND/OR AGENCY REVIEW AND APPROVAL. IT IS NOT INTENDED AS A CONSTRUCTION DOCUMENT UNLESS INDICATED OTHERWISE. PROJECT NO.: V211201 DRAWN BY: DSH CHECKED BY: RTY DATE: 8/27/2021 CAD I.D.: GRAD -1 PROJECT VIRGINIA STORMWATER MANAGEMENT PLAN FOR 3_10 � N 11 PROPOSED LOCATION 1636 SEMINOLE TRAIL ALBERMARLE COUNTY CHARLOTTESVILLE, VIRGINIA 22901 BOHLERI 2150 ASHLAND RD. SUITE 200 RICHMOND, VIRGINIA23146 Phone: (804)893-8200 VA@BohlerEng.com TH Lic. No. 0402056625 01/21/2022 SHEET TITLE: EROSION AND SEDIMENT CONTROL NOTES SHEET NUMBER C-603 REVISION 1 - 01/21/2022 PTE SAFETY FENCE 3.11-1 t •t IM PERSPECTIVE VIEW r F 1' -.. LEI WIRE FABRIC ENE POST is 1' o' wfAk. BRACING GROUND LINE CONCRETE FOOTING PERSPECTIVE VIEW PERSPECTIVE VIEW PLASTIC FENCE METAL FENCE SOURCE: CONWED PLASTICS, VDOT ROAD AND BRIDGE STANDARDS, VA DSWC 1992 3.32 TABLE 3.32-D SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA Total Lbs. Per Acre Minimum Care Lawn - Commercial or Residential 175-200 lbs. - Kentucky 31 or Turf -Type Tall Fescue 95-10017b - Improved Perennial Ryegrass 0-5% - Kentucky Bluegrass 0-5% High -Maintenance Lawn 200-250 lbs. - Kentucky 31 or Turf -Type Tall Fescue 100% General Slope M1 or less) - Kentucky 31 Fescue 128 lbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop 20 lbs. 150 lbs. Low -Maintenance Slope (Steelier than 3A) - Kentucky 31 Fescue 108 lbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop* 20 lbs. . Crownvetch " 20 lbs. 150 lbs. ' Use seasonal nurse crop in accordance with seeding dates as stated below: February loth through April ...................... Annual Rye May 1st through August 15th ..................... Foxtail Millet August loth through October ...................... Annual Rye November through February 15th ................... Winter Rye '* Substitute Sericea lespedem for Crownvetch east of Farmville, Va. (May through September use hulled Sericea, all other periods, use outraged Sericea). If Flatpea is used in lieu of Crowmetch, increase rate to 30 lbs./acre. All legume seed must be properly inoculated. Weeping Lovegram may be added to any slope or low -maintenance mix during warmer seeding periods; add 10-20 lbs./acre in mixes. 1II - 303 BLOCK & GRAVEL CURB INLET 307T8 SEDIMENT FILTER CURB INLET d� g Wit• Aa f a : r RUNOFF WATER WITH OVERFLOW FILTERED WATER SEDIMENT (I SEDIMENT —' WIRE SCREEN 2" X 4" WOOD STUD �• 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 Albemarle County Design Standards Manual - Engineering STONE ;'MSINSTONECONSTUCRON ACCESS 3-M-2A ASPHALT TOP COURSE z% z% 6- MIN. 21A AGGREGATE BASE STONE CONSTRUCTION ASPHALT PAVED ACCESS A WASHRACK EXISTING 2% 2% PAVEMENT 2%• 12' MIN.- *MUST EXTEND FULL WIDTH I�POSITNE DRAINAGE OF INGRESS AND EGRESS 11 TO SEDIMENT Lo OPERATION TRAPPING DEVICE 112 MIN.—POSRIN IVE DRAAGE 2% To SEDIMENT .. - TRAPPING ncyirF FILTER CLOTH SECTION A -A A nimmumn water tap of I inch must be installed with a a,hdmmu 1 itch ballcock shutoff valve Supplying a wash hose with a diameter of 1.5 itches for adequate constant pressure. Wash water mist be carried away from the enhance to an approved sehliag m" to ranove sedini mt. Ali sedune t shag be presented from entering storm dtRia", ditches of waterconrves PAVED WASH RACK ANC I 199E 3.32 TABLE 332-E QUALITY OF SEED* Minimum Seed Minimum M) Germination M) LcerPurity mes Crowrwetch 98 65" Lespedeza, Korean 97 85" Lespedeza, Sericea Grasses 98 85" Bluegrass, Kentucky 97 85 Fescue, Tall (Improved, Turf -Type Cldtivars) 98 85 Fescue, Tall (Ky-31) 97 85 Fescue, Red 98 85 Redtop 94 80 Reed Canarygrass 98 80 Perennial Ryegrass 98 90 Weeping Lovegrass 98 87 Annuals Annual Ryegrass 97 90 German Millet 98 85 Oats 98 80 Cereal Rye 98 85 ' Seed containing prohibited or restricted noxious weeds should not be accepted. Seed should not contain in excess of 0.5%weed seed. To calculate percent pure, live seed multiply germination times purity and divide by 100. EXampl4: Ky-31 Tall Fescue with a germination of 85 percent and a purity of 97 percent. 97 x 85 = 8245. 8245 = 100 = 82.45 percent pure live seed. " Includes "hard seed" TYPICAL ORIENTATION OF PLATE 6-1 TREATMENT — I (SOIL STABILIZATION BLANKET) cumrnw DN SHALLOW SLOPES, STRIPS OF NETTING PR07TO77VE COVERINGS MAY BE APPLIED ACROSS THE SLOPE BERM WHERE THERE IS A BERM AT THE TOP OF THE SLOPE, BRING THE MATERIAL OVER THE BERM AND ANCHOR AT BEHIND THE BERM. -Wqft ON STEEP SLOPES, APPLY PR07EC77VE COVERING PARALLEL TO THE DIRECTION OF ROW AND ANCHOR SECURE BRING MATERIAL DOWN TO A LEVEL AREA BEFORE 4._, TERMIM77NO THE INSTALL477ON TURN THE END UNDER 4' AND STAPLE AT 12" INTERVALS-Z. IN DITCHES, APPLY PR07ECTIVL COVERING PARALLEL TO THE DIRECTION OF FLOW. USE CHECK SL07S AS REQUIRED. AVOID JOINING MATERIAL IN THE CENTER OF THE DITCH IF AT ALL POSSIBLE SOURCE: ADAPTED FROM LUDLOW PRODUCTS BROCHURE Page 8 of 23 1992 Figure 3.9: Typical Detail for Concrete Wash -Out Area STAKE STRAW BALES 10 MIL PLASTIC LINING A � s VISIBLE SIGN STARE 1p "" LINING STRAW BALES MIL PLASTIC � LINING T— NATURAL GROUND r SECTION A- A VISIBLE BELOW GROUND �:FxxazlErE STAKES rMsxart \\}IP Mn.� AREA `II,1IIT„IIRII',. MILLPLASTIC LI - 'y /NING NATURAL GROUND SECTION A - A WOOD PLANKS ABOVEGROUND TABLE 3.33-A TYPE OF SOD AVAILABLE IN VIRGINIA AND RECOMMENDED USES Kentucky Bluegrass: Adapted to the Northern Piedmont and Mountain Regions. Individual varieties selected must make up not less than 10%, nor more than 35% of the total mixture on a weight basis. All varieties must be certified. Selections can be made from Category I alone or various combinations of Categories I, II and III, as noted. Category I - Recommended Kentucky Bluegrass Varieties 65% - 100% A-34, Abbey, Aspen, Asset, Baron, Blacksburg, Bristol, Cheri, Chateau, Classic, Coventry, Georgetown, Glade, Haga, Julia, Liberty, Loft's 1757, Merit, Midnight, Monopoly, Plush, Princeton 104, Rugby, Suffolk, Victa Category II - Special use varieties. If used, must contain at least 65% Category I varieties Shade Tolerant 10-35% Bristol, Columbia, Georgetown, Glade, Midnight Low -Maintenance Tolerant 10-35% Columbia, Georgetown, Monopoly, Ram 1, Touchdown, Victa Category III - Promising Kentucky Bluegrass - Limited performance data or seed availability 10-35% Dawn, Estate, Freedom, Kelly OVERFLOW RUNOFF WATER WITH SEDIMENT **(continued)*' 3.33 1992 CONSTRUCTION OF A SILT FENCE 305E1 (WITH WIRE SUPPORT) 1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS. TRENCH UPSLOPE ALONG THE LINE OF POSTS. Mir— "MMENE&I 4N( SO 01 W®ill 3. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND IT INTO THE TRENCH. FLOW 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. SOURCE: ADAPTED FROM INSTALLATION OF STRAW AND FABRIC FILTER BARRIERS FOR SEDIMENT CONTROL, SHERWOOD & WYANT 3.33 1992 TABLE 3.33-A (CONTINUED) TYPE OF SOD AVAILABLE IN VIRGINIA AND RECOMMENDED USES Tall Fescue: Adapted to the entire state. Recommended Tall Fescue Varieties: 90-100% Amigo, Apache, Bonanza, Chieftain, Finelawn 5GL, Mesa, Rebel II, Shenandoah, Tribute Promising Tall Fescues Certified Arriba, Austin, Avanti, Aztec, Cochise, Crossfire, Eldorado, Hubbard 87, Jaguar UL Maverick II, Monarch, Olympic II, Phoenix, Safari, Shortstop, Sundance, Taurus, Thoroughbred, Titan, Tradition, Vegas, Winchester, Wrangler 0-10% Kentucky bluegrass: Baron, Cheri, Columbia, Monopoly, Nassau, Ram I, Victa Bermudagrass: Tufcote is adapted to the Richmond -Danville -Newport News triangle. Midiron may be used east of Roanoke and south of Charlottesville. Tifgreen and Tifway may be used to the east and south of Richmond. Vamont may be used east of Roanoke and at lower elevations in southwestern Virginia. Certified Midiron, Tifgreen*, Tifway, Tifway IL Tufcote and Vamont Zoystagrass: This sod performs best in southeastern Virginia Meyer, EmeraldW Note: Common Bermudagrass is not recommended for sod production. # Only recommended in southeastern Virginia Source: 1991 Virginia Turfgrass Variety Recommendations, Virginia Crop Improvement Association \-DROP INLET WITH GATE SEDIMENT '- 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 CONSTRUCTION OF A SILT FENCE 3 5-2 (WITHOUT WIRE SUPPORT) 1. SET THE STAKES. 2. EXCAVATE A 4'X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. 6'NA F ow III—�•• III—� 4' 3. STAPLE FILTER MATERIAL 4. BACKFILL AND COMPACT TO STAKES AND EXTEND THE EXCAVATED SOIL. IT INTO THE TRENCH. G Row / SHEET FLOW INSTALLATION (PERSPECTIVE VIEW) POINTS A SHOULD BE HIGHER THAN POINT B. DRAINAGEWAY INSTALLATION (FRONT ELEVATION) SOURCE: ADAPTED FROM INSTALLATION OF STRAW AND FABRIC FILTER BARRIERS FOR SEDIMENT CONTROL,VA. DSWC, SHERWOOD AND WYANT TABLE 3.35-A ORGANIC MULCH MATERIALS AND APPLICATION RATES RATES: MULCHES: NOTES: Per Acre Per 1000 sq. ft. Straw or Hay 1; - 2 tons 70 - 90 lbs. Free from weeds and coarse (Minimum 2 matter. Must be anchored. tons for Spread with mulch blower winter cover) or by hand. Fiber Mulch Minimum 35 lbs. Do not use as mulch for 1500 lbs. winter cover or during hot, dry periods.* Apply as slurry. Corn Stalks 4 - 6 tons 185 - 275 lbs. Cut or shredded in 4-6" lengths. Air-dried. Do not use in fine turf areas. Apply with mulch blower or by hand. Wood Chips 4 - 6 tons 185 - 275 lbs. Free of coarse matter. Air- dried. Treat with 12 lbs nitrogen per ton. Do not use in fine turf areas. Apply with mulch blower, chip handler, or by hand. Bark Chips 50 - 70 cu. 1-2 cu. yds. Free of coarse matter. Air - or yds. dried. Do not use in fine Shredded turf areas. Apply with Bark mulch blower, chip handler, or by hand- * When fiber mulch is the only available mulch during periods when straw should be used, apply at a minimum rate of 2000 lbs./ac. or 45 I1 sq. ft. Source: Va. DSWC gP 3a Z 8 w a8 LU W Z F WW W 9 Wz W�LDw�m ;ZWWU)>W $� Z_>-(D t=��� g FW¢x WZ >ZC) Wr40 �o MIJv)Z)2aQZQ a2 Z (n 2 W Z H H- how o Z Of Q F F O &Qm Q ft Z � 11 Q sa a Q =J J ro O LU U zx wg H- � s �a o� REVISIONS REV DATE COMMENT DRAKE ar CHECMD BY 1 01/21/2022 PER COUNTY BSC COMMENTS RTY Know what's below. Call before you dig. ALWAYS CALL 811 It's fast. It's free. It's the law. NOT APPROVED FOR CONSTRUCTION THIS DRAWING IS INTENDED FOR MUNICIPAL AND/OR AGENCY REVIEW AND APPROVAL. IT IS NOT INTENDED AS A CONSTRUCTION DOCUMENT UNLESS INDICATED OTHERWISE. PROJECT No.: V211201 DRAWN BY: DISH CHECKED BY: RTY DATE: 8/27/2021 CAD I.D.: GRAD -1 PROJECT: VIRGINIA STORMWATER MANAGEMENT PLAN FOR DO�Qa�aQ PROPOSED LOCATION 1636 SEMINOLE TRAIL ALBERMARLE COUNTY CHARLOTTESVILLE, VIRGINIA 22901 BOHLERI 2150 ASHLAND RD. SUITE 200 RICHMOND, VIRGINIA23146 Phone: (804)893-8200 VA@BohlerEng. sour rc_ALTH e� Lic. No. 0402056625 it�l 01/21/2022 A SHEET TITLE: EROSION AND SEDIMENT CONTROL DETAILS SHEET NUMBER C-604 ti REVISION 1 - 01/21/2022 Section 5. Stormwater Management Plan (Provide a reduced 11x17 copy of the latest stormwater management plan. Do not reference only.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County LANDS N/F ' SULLNAN, WILL/AM EDriARD & ✓OHN A F D.B. 1095 PG. 237 P/N. 06100-00_ 00- / 2ONEh-t7C )`9GHWAY COMMERC/AL) P011 USE: COMMERC/AL AREA = 0.12 AC CN = 83 j Q1= 0.28 CFS Q10 = 0.72 CFS IN o \ IJ S1 \ 1 , -- $5°1 506- 5p5 ---- --- ------ LAbY 506 C�YTL07TF5VI A BsRgRLE,%' - ------ ---- REIWTAL PROPt1T,11t5 ZtC --- --____ 505 504978. 5040_1:10. 206 y I ,,. ,; I \� �` ` y - -- ---------- -f,,✓.• 061100-00=00-j20P0%' _ �H/GHWAY COMMERC/ALJ: ----- 2': 0�/ so ` vS COMMERC/AL % � V 1 ------ l/) /�i�j ------- ----- \- _ `\ `\` Is QD o / ; IN 499 It 1 1 \ LANDS 1 I S S C\ACOU/S/T/b/1/S IN(: \ - r1, I / A I D.B. 1429- I PIN.- 06100-00-00�120DK, / / 1 ZONED.• HC (H/&WWAY COIERC%A{,J I USE.• SELF STORAGE \ _ - 505-\::\ I °A 505 \ I I --___--- - - --oy -\ / --- - y02 \ -- -- 5 \ 5 t �\ \ /-------------- ------ \ 9 - - A-- -�`\ IN \ I /,,;; %';; �',ONED HC USE. FUEL S'TA&,W \ P012 1 l0 20 10 0 40 1 40' ENERGY BALANCE Site: Discount Tire Charlottesville Jurisdiction: Albemarle County Storm Event: 1 Year 24-Hour Rainfall Depth: 3.65" m AREA=1.19AC //--- \\ CN=90 Q1= 3.80 CFS Q10 = 8.24 CFS I \ PRE DEVELOPED DRAINAGE Pre -Development 1yr lyr Q, Flow (cfs) 0.28 3.80 CN, Curve Number 83 90 RV, Runoff Depth (in) 1.99 2.59 Drainage Area (ac) 0.12 1.19 RV, Runoff Volume (ac-in) 0.24 3.08 Post -Development Q, Flow (cfs) 0.04 2.31 I.F. 0.80 0.80 Improvement Factor CN, Curve Number 80 94 RV, Runoff Depth (in) 1.76 2.98 Drainage Area (ac) 0.02 1.29 RV, Runoff Volume (ac-in) 0.04 3.85 Enerov Balance (EBI I.F. RV pre I 0.28 I 2.43 Q, Post-Dev Allowable (cfs) RV oos Notes: 1. Q Post-Dev must always be less than or equal to Q Pre-Dev 2. Q Post-Dev is not required to be less than that calculated in the equation (Q forest x RV forest) / RV Post-Dev 3. I.F. = 0.8 for sites > 1.0 acre, 0.9 for sites <_ 1.0 acre 4. 24-Hour Rainfall Depth per NOAA Atlas 14 Precipitation Frequency Estimates 5. RV value calculated using Equation 12.15, Chapter 12 of Virginia Stormwater Management Handbook O EXISTING IMPERVIOUS AREAS O O 37,919 SF - 0.87 AC n� \SOO- T \ EXISTING PERVIOUS AREA 19,091 SF - 0.44 AC U11 `�N AREA = 0.02 AC CN=80 Q1=0.04CFS \� Q10=0.11 CFS oIN \` / 1 00 F50I ' 0 1 t \ -505 11 I � � 'i �u h0 �•�' ' , � i I 1 p EDl1ARO & ✓OHN A F 295 PG. 237 7-00-002 R,- / 7GHWAY CaoOMME7-1___RC/AL) COMMERCIAL / -,-c- 5v" 5°5-� --------------- \ I O O /_u--\gyp 0 1 O O OIN O 1p, 1 O \ \ c -\ ' 1 1 \ 1 t LANDS MIF 96 1 I S S C\ACOU/S/TIgVS INC. \ _ 1 I D.B. 1429 PG. \33'0 I P1N.• 06100-00-00A120D \ ----` ZONED.• HC (HIDN YAY COCfMERC%A{ J \ , I USE. SELf STORAGE`\ \\ 505- 505 4s9 II --- -- ------ -- - - \-------- - - \ \ - - 9 \\ `• / -%= ; ', '-,ZdNED HC (Z.,Hfi 9Y`Cfis140 ° USE. FUEL Q IN \ \ ----- `\ AREA =1.29 AC CN=94 \ \ = J ' ; ;\� ---- - \ Q1= 2.37 CFS ------ `\ 1 \ ', Q10 = 8.14 CFS 0 20 10 0 40 1 40' • � ,`• III ♦1AV 'A W IWI ' POST DEVELOPED DRAINAGE AREA OO OS D1I00 ERVIOUS AREAS O 43,8 STORMWATER MANAGEMENT NARRATIVE PROPOSED PERVIOUS AREA 13,756 SF - 0.32 AC THE PROPOSED PROJECT IS FOR THE DEVELOPMENT OF A DISCOUNT TIRE STORE AND ASSOCIATED SITE IMPROVEMENTS. THE EXISTING PROPERTY IS CURRENTLY DEVELOPED AS A CLOSED FAST-FOOD RESTAURANT AND ADDITIONAL COMMERCIAL BUILDINGS IN THE REAR. THE TOTAL DISTURBED AREA IS 1.31 ACRES, WITHIN THIS AREA, THERE ARE 0.87 ACRES OF IMPERVIOUS AREA IN THE EXISTING CONDITION. THE POST DEVELOPMENT CONDITIONS WILL BE 78% (1.02 ACRES) IMPERVIOUS AND 22% (0.29 ACRES) PERVIOUS. THE SITE CONDITIONS WERE ANALYZED AT TWO POINTS OF INTEREST, POI 1 AND P012. THE FIRST ANALYZED POINT OF INTEREST (POI 1) IS LOCATED TO THE NORTHWEST OF THE SITE THE SECOND ANALYZED POINT OF INTEREST (POI 2) IS LOCATED TO THE SOUTH OF THE SITE, ALONG SEMINOLE TRAIL, WHERE THE PROPOSED SITE RUNOFF CONVERGES AT THE SAME DOWNSTREAM POINT AND THE REDUCTION OF RUNOFF WITHIN OUR DISTURBED AREA RESULTS IN AN IMPROVED DOWNSTREAM CONDITION. WATER QUALITY REQUIREMENTS FOR THIS SITE WILL BE MET BY PURCHASING 0.66 LBS OF NUTRIENT OFFSET CREDITS. WATER QUANTITY REQUIREMENTS WILL BE MET THROUGH THE USE OF A UNDERGROUND STORAGE CHAMBERS. THE CHAMBERS ARE AN ON -SITE DETENTION SYSTEM THAT UTILIZES A WEIR OUTFALL STRUCTURE. THIS MEASURE ATTENUATES THE POST DEVELOPMENT FLOWS TO MEET ENERGY BALANCE AND FLOOD PROTECTION REQUIREMENTS. THE PRE AND POST -DEVELOPMENT FLOW RATES FOR THE 1-YEAR, 2-YEAR AND 10-YEAR STORM EVENTS FOR THIS SITE WERE CALCULATED USING THE SCS METHOD IN THE PROGRAM AUTOCAD HYDRAFLOW HYDROGRAPHS. TO CALCULATE THE RUNOFF REDUCTION REQUIRED TO MEET THE ENERGY BALANCE REQUIREMENTS, CURVE NUMBERS WERE CALCULATED USING VALUES FROM SCS TABLE 2.2A, RUNOFF CURVE NUMBERS FOR URBAN AREAS. RAINFALL DEPTHS USED TO CALCULATE FLOWS WERE TAKEN FROM NOAA ATLAS 14. THE PRE -DEVELOPMENT FLOW RATES ARE SHOWN BELOW: THE POST -DEVELOPMENT FLOW RATES ARE SHOWN BELOW: POI 1 POI 2 POI 1 POI 2 1-YEAR CFS: 0.284 1-YEAR CFS: 3.801 1-YEAR CFS: 0.041 1-YEAR CFS: 2.314 2-YEAR CFS: 0.390 2-YEAR CFS: 4.901 2-YEAR CFS: 0.058 2-YEAR CFS: 3.901 10-YEAR CFS: 0.724 10-YEAR CFS: 8.236 10-YEAR CFS: 0.112 10-YEAR CFS: 8.023 AS SHOWN IN THE POST DEVELOPED DRAINAGE PLAN ABOVE, THE RUNOFF FROM THE 1-YEAR, 2-YEAR AND 10-YEAR STORM EVENTS HAS BEEN REDUCED IN THE POST -DEVELOPMENT CONDITION TO LEVELS BELOW THE PRE -DEVELOPMENT CONDITION THEREFORE MEETING THE FLOOD PROTECTION REQUIREMENT. AS SHOWN ON THE ENERGY BALANCE CALCULATIONS ON THIS SHEET, THE REDUCTION IN THE POST DEVELOPMENT FLOWS ARE SUFFICIENT TO SATISFY THE ENERGY BALANCE EQUATION, THEREFORE MEETING THE CHANNEL PROTECTION REQUIREMENTS FOR THE SITE. THE ALLOWABLE RELEASE RATE FOR ENERGY BALANCE WAS CALCULATED TO BE 3.14 CFS. THE COMBINED RELEASE RATE OF THE UNDERGROUND DETENTION SYSTEM WAS CALCULATED TO BE 3.13 CFS. THEREFORE, BECAUSE BOTH FLOOD PROTECTION AND CHANNEL PROTECTION REQUIREMENTS HAVE BEEN MET FOR THE SITE, ALL STORMWATER QUANTITY REQUIREMENTS HAVE BEEN MET AND NO FURTHER CALCULATIONS ARE REQUIRED. BEST MANAGEMENT PRACTICES NARRATIVE SINCE THE SUBJECT SITE IS AN EXISTING DEVELOPED SITE, WATER QUALITY REQUIREMENTS FOR THE DEVELOPMENT OF THIS SITE WERE CALCULATED USING THE VIRGINIA RUNOFF REDUCTION METHOD (VRRM) REDEVELOPMENT SPREADSHEET. USING THIS SPREADSHEET IT WAS DETERMINED THAT THE DEVELOPMENT OF THIS SITE WOULD REQUIRE THE TREATMENT OF AN ADDITIONAL 0.66 LB/YR OF PHOSPHOROUS REMOVAL. TO MEET THIS REMOVAL REQUIREMENT, NUTRIENT OFFSET CREDITS WILL BE PURCHASED. SINCE THE PHOSPHOROUS REMOVAL ACHIEVED BY THESE CREDITS MEETS THE AMOUNT REQUIRED BY THE VRRM REDEVELOPMENT SPREADSHEET, ALL STORMWATER QUALITY REQUIREMENTS FOR THIS PROJECT HAVE BEEN MET AND NO FURTHER ANALYSIS IS REQUIRED. CONCLUSION SINCE THE 1-YEAR, 2-YEAR, AND 10-YEAR FLOW RATES IN THE POST -DEVELOPED CONDITION MEET ENERGY BALANCE AND FLOOD PROTECTION, IN ADDITION TO THE PHOSPHOROUS REMOVAL RATE MEETING THE VRRM REDEVELOPMENT PHOSPHOROUS REMOVAL REQUIREMENT, IT IS THE OPINION OF THE ENGINEER THAT THE STORMWATER QUANTITY AND QUALITY REQUIREMENTS ARE SATISFIED FOR THIS PROJECT. ADEQUATE OUTFALL NARRATIVE THE EXISTING SITE GENERALLY DRAINS TO THE SOUTH INTO EXISTING STORM INLETS ALONG THE EDGES OF THE SITE. THE RUNOFF IS THEN ROUTED EAST ALONG SEMINOLE TRAIL WHERE ALL OF THE SITE RUNOFF CONVERGES AT THE EXISTING STRUCTURE NOTED AS EX-1. THE PROPOSED DEVELOPMENT CAPTURES AND DETAINS THE SITE RUNOFF BEFORE IT IS RELEASED AT POI-2 AT A RATE WHICH IS LESS THAN THE EXISTING CONDITION. SINCE THE OVERALL FLOWS TO POI-1 AND POI-2 AND ALL DOWNSTREAM STRUCTURES ARE REDUCED FOR THE 1-YEAR, 2-YEAR, AND 10-YEAR STORM EVENTS, THIS OUTFALL IS CONSIDERED ADEQUATE. AS SUCH, IT IS THE OPINION OF THE ENGINEER THAT ADEQUATE OUTFALL REQUIREMENTS HAVE BEEN MET FOR THE SUBJECT SITE. � 3 gX 3a z 8 w a8 uJ w z UJ W�~� WUWz w w?W25;Www¢xwz <np 2 av)Z)<<z<>zU8g� mNo z U) 2 w Z F how ozW < 0 &Q0 z 0 Ud z ww® z 0 � Of < Q a' Z U) a Q a� o Q of > F o O U zx wm � s 68 o� REVISIONS REV DATE COMMENT CNECNeD ar 1 01/21/2022 PER COUNTY BSC COMMENTS RTY Know what's below. Call before you dig. ALWAYS CALL 811 It's fast. It's free. It's the law. NOT APPROVED FOR CONSTRUCTION THIS DRAWING IS INTENDED FOR MUNICIPAL AND/OR AGENCY REVIEW AND APPROVAL. IT IS NOT INTENDED AS A CONSTRUCTION DOCUMENT UNLESS INDICATED OTHERWISE. PROJECT No.: V211201 DRAWN BY: DSH CHECKED BY: RTY DATE: 8/27/2021 CAD I.D.: DRIN -1 PROJECT: VIRGINIA STORMWATER MANAGEMENT PLAN FOR ®00000 PROPOSED LOCATION 1636 SEMINOLE TRAIL ALBERMARLE COUNTY CHARLOTTESVILLE, VIRGINIA 22901 BOHLERI 2150 ASHLAND RD. SUITE 200 RICHMOND, VIRGINIA23146 Phone: (804)893-8200 VA@BohlerEng.com rG_AKTH 6". RI%N YAUGER Lic. No. 0402056625 6, 01 /21/2022 SHEET TITLE: STORMWATER COMPLIANCE PLAN SHEET NUMBER: C-901 REVISION 1 - 01/21/2022 ti data input cells Project Name: Date: Discount Tire Charlottesville 10/18/2021 constant values Linear Development Project?No calculation cells Site Information Post -Development Project (Treatment Volume and Loads) Enter Total Disturbed Area (acres) 1 31 Check. BMP Design Specifications List. 2013 Draft Stds & Specs 0. ,,Total 7csolls � Linearproject? Land cover areas entered correctly? No Pre-ReDevelopment Land Cover (acres) disturbed area entered? A Soils B Soils D Soils Totals Forest/Open Space (acres) -undisturbed forest/open space 0.00 Managed Turf (acres) -- disturbed, graded for yards or other turf to be mowed/managed 0.43 0.43 Impervious Cover (acres) 0.88 0.88 1.31 Post -Development Land Cover (acres) A Solis B Solis C Soils D Soils Totals Forest/Open Space (acres) - undisturbed, protected forest/open space or reforested land 0.00 Managed Turf (acres) - disturbed, graded for yards or other turf to be mowed/managed 0.29 0.29 Impervious Cover (acres) 1.02 1.02 Area Checkl OK. OK. OK. OK. 1.31 Constants Runoff Coefficients Rv Annual Rainfall (inches) 43 A Soils B Solis C Solis D Solis Target Rainfall Event (Inches) 1.00 Forest/Open Space 0.02 0.03 0.04 0.05 Total Phosphorus (TP) EMC (mg/L) 0.26 Managed Turf 0.15 0.20 0.22 0.25 Total Nitrogen (TN) EMC (mil 1.86 Impervious Cover 0.95 0.95 0.95 0.95 Target TP Load (lb/acre/yr) 0.41 Pi (unitless correction factor) 0.90 Land Cover Summary -Pre Pre-ReDevelopment Listed Adjusted' Forest/Open Space Cover (acres) 0.00 0.00 Weighted Rv(forest) 0.00 0.00 %Forest 0% 0% Managed Turf Cover (acres) 0.43 0.29 Weighted Rv(turf) 0.25 0.25 %Managed Turf 33% 25% Impervious Cover (acres) 0.88 0.88 Rv(impervious) 0.95 0.95 %Impervious 67% 75% Total Site Area (acres) 1.31 1.17 Site Rv 0.72 0.78 Treatment Volume and Nutrient Load Pre-ReDevelopment Treatment Volume 0.0786 0.0757 (acre-ft) Pre-ReDevelopment Treatment Volume (cubic feet) 31425 3,298 Pre-ReDevelopment TP Load (lb/yr) 2.15 2.07 Pre-ReDevelopment TP Load per acre 64 n (Ib/acre/1 Baseline TP Load (lb/yr) (0.41 Ibs/aae/yr applied to pre -redevelopment area excluding pervious 0.48 land proposed for new impervious cover) 'Adjusted Land Cover Summary: Pre ReDevelopment land cover minus pervious land cover (foresVopen space or managed turf) acreage proposed for new impervious cover. Adjusted total acreage is consistent with Post-ReDevelopment acreage (minus acreage of new impervious cover). Column / shows load reduction requriement for new impervious cover (based on new development load limit 0.41 Ibs/acre/year). STM STM -20 -20 ELEV = 498.85 ELEV = 498.85 RIM OF STRUCTURE -\ RIM OF STRUCTURE ..-III-III-I d e. _ d INSIDE CEILING= 494.90 -III-III-I I -III-I 5 I I -III -III _III S' =-III= III= NSIDE CEILING = 494.90 -III- SOLID PRE CAST _ _ _ I I -I I I -I III -III 10YR-WSEL= 494.09 - CONCRETE WALLS III -III- �] 10YR-WSEL=494_.09 (TYP.)-III-III ______ I I-III-111 a a 2YR=WSEL= 493_53 d_ _�] 2YR-WSE_L=493.53 ° 1Y_R=WSEL=493.27_ "CONIC. WALL . - _______ TOP =49400 ___ __�7�1 _ - 1YRL-493 d 15" RCP OUTFALL 2-3" LOW FLOW (INV.=490.90) d 15WEIR AT 492.8 d n d 4 FOLOWE 1.5' WEIR AT 492.80 .a ' °. d ° ° 12" O.C. (7yP.) M.H. g d STEPS/LADDER RUNGS STANDARD° - ° 3" DIAMETER a ^ �6" CONIC: WALE ° d .. LOW FLOW ORIFICE (INV.=490.90) (CONTRACTOR TO ENSURE TRASH RACK < OPENINGS ARE1/2") . d. va d dl ° / d INV.=490.90 15" RCP INV.= 490.90 y ° OUTFALL ° ° 6" REINF. CONIC. L d -a *A .. - FOOTING PROP TRASH RACK (CONTRACTOR TO ENSURE TRASH SECTION A -A PROP TRASH RACK RACK OPENINGS ARE 5 1/2') OUTLET STRUCTURE DETAIL - STRUCTURE A-1 NOT TO SCALE NOTE: CONTRACTOR TO SUBMIT SHOP DRAWINGS TO ENGINEER FOR REVIEW AND APPROVAL PRIOR TO CONSTRUCTION. Virginia Runoff Reduction Method Worksheet DEQ Virginia Runoff Reduction Method Re -Development Compliance Spreadsheet - Version 3.0 BMP Design Specifications List: 2013 Draft Stds & Specs Site Summary Project Title: Discount Tire Charlottesville Date: 44487 Total Rainfall (in): 43 Total Disturbed Acreage: 1.31 Site Land Cover Summary Pre-ReDevelopment Land Cover (acres) A soils B Solis C Soils D Solis Totals IN of Total Forest/Open (acres) 0.00 0.00 0.00 0.00 0.00 0 Managed Turf (acres) 0.00 0.00 0.00 0.43 0.43 33 Impervious Cover (acres) 0.00 0.00 0.00 0.88 0.88 67 1.31 100 Post-ReDevelopment Land Cover (acres) A soils B Soils C Soils D Soils Totals % of Total Forest/Open (acres) 0.00 0.00 0.00 0.00 0.00 0 Managed Turf (acres) 0.00 0.00 0.00 0.29 0.29 22 Impervious Cover (acres) 0.00 0.00 0.00 1.02 1.02 78 1.31 100 Site Tv and Land Cover Nutrient Loads Final Post -Development Post- Post- Adjusted Pre- (Post-ReDevelopment Development Impervious) & New Im p ) ReDevelopment (New Impervious) ReDevelopment Site Rv 0.80 0.78 0.95 0.78 Treatment Volume (ft3) 3,781 13,298 1 483 1 3,298 TP Load (lb/yr) 2.38 1 2.07 1 0.30 12.07 ITotal TP Load Reduction Required (lb/yr) 0.66 0.41 0.25 Final Post -Development Load (Post-ReDevelopment & New Impervious) Pre- ReDevelopment TN Load (lb/yr) 16.99 15.39 Pre - Final Post -Development Post-ReDevelopment TP ReDevelopment TP Load per acre Load per acre TP Load per acre (Ib/acre/yr) (Ib/acre/yr) (lb/acre/yr) 1.77 1.81 1.77 _ J UJ z it w w LLI N Wz w (D z0zow z w1--Ow> 0 z W W 020W j W zrc9l=oOftn Fw¢x Luz _J>Z0WW0 tDi»�aQzQ zcnmwzFl- OzQaa~O QJWC]�wz z aQ > aJ of O U w H REVISIONS REV DATE COMMENT cx 1 01/21/2022 PER COUNTY COMMENTS • Know what's below. Call before you dig. ALWAYS CALL 811 It's fast. It's free. It's the law. NOT APPROVED FOR CONSTRUCTION THIS DRAWING IS INTENDED FOR MUNICIPAL AND/OR AGENCY REVIEW AND APPROVAL. IT IS NOT INTENDED AS A CONSTRUCTION DOCUMENT UNLESS INDICATED OTHERWISE. PROJECT No.: V211201 DRAWN BY: DSH CHECKED BY: RTY DATE: 8/27/2021 CAD I.D.: DRIN -1 PROJECT: VIRGINIA STORMWATER MANAGEMENT PLAN FOR PROPOSED LOCATION 1636 SEMINOLE TRAIL ALBERMARLE COUNTY CHARLOTTESVILLE, VIRGINIA 22901 MOHLER// 2150 ASHLAND RD. SUITE 200 RICHMOND, VIRGINIA23146 Phone: (804)893-8200 VA@BohlerEng.com rc_ALTH e�vl .� TP Load Reduction Required (Ib/yr) 0.66 Site Compliance Summary Lic. No. 0402056625 �► OAS 01/21/2022 A Nitrogen Loads (Informational Purposes Only) Final Post -Development TN Loa Pre-ReDevelopment TN Load (lb/yr) 15.39 11 11 (Post-ReDevelopment & New 16.99 Maximum % Reduction Required Below 20% Pre-ReDevelopment Load Total Runoff Volume Reduction (ft3) 0 Total TP Load Reduction Achieved (lb/yr) 0.00 Total TN Load Reduction Achieved (lb/yr) 0.00 Remaining Post Development TP Load (lb/yr) 2.38 Remaining TP Load Reduction (lb/yr) Required 0.66 SHEET TITLE: STORMWATER COMPLIANCE PLAN SHEET NUMBER C-902 ti REVISION 1 - 01/21/2022 Watershed Model Schematic HydreflowHydrographs Extension for AutodeskO Civil 3DObyAutodesk,Inc.v2020 Hydrograph Report 2 Hydrograph Report 3 Hydrograph Report 4 Hydraflow Hydrographs Extension for AutodeskO Civil 3D® by Autodesk, Inc. v2020 Tuesday, 01 ! 18 / 2022 Hyd. No. 1 POI-1Pre Hydrograph type = SCS Runoff Peak discharge = 0.284 cfs Storm frequency = 1 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 574 cuft Drainage area = 0.120 ac Curve number = 83* Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 2.95 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 ' Composite (Area/CN) _ [(0.100 x 60) + (0.020 x 98)] 10.120 POI-1 Pre Q (ars) Hyd. No. 1 - 1 Year Q (Crs) 0.50 0.50 Hydraflow Hydrographs Extension for AutodeskO Civil 3D® by Autodesk, Inc. v2020 Tuesday, 01 ! 18 / 2022 Hyd. No. 2 POI-1 Post Hydrograph type = SCS Runoff Peak discharge = 0.041 cfs Storm frequency = 1 yrs Time to peak = 718 min Time interval = 2 min Hyd. volume = 83 cuft Drainage area = 0.020 ac Curve number = 80* Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (TIC) = 5.00 min Total precip. = 2.95 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 ' Composite (Ama/CN) _ [(0.020 x 80)] 10.020 POI-1 Post Q (ars) Hyd. No. 2 -- 1 Year Q (Cfa) 0.10 0.10 Hydraflow Hydrographs Extension for Autodesk® Civil 3130 by Autodesk, Inc. v2020 Tuesday, 01 / 18 / 2022 Hyd. No. 3 POI-2 Pre Hydrograph type = SCS Runoff Peak discharge = 3.801 cfs Storm frequency = 1 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 7,849 cuft Drainage area = 1.190 ac Curve number = 90* Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (TIC) = 5.00 min Total precip. = 2.95 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 ?� CDC;) CD CD �� •� Yi Y g Legend lid. Ala Description 1 SCS Runoff POIA Pre 2 SCS Runoff POIA Post 3 SCS Runoff POI-2 Pre 4 SCS Runoff POI-2 to Underground 5 SCS Runoff POI-2 Undetained 6 SCS Runoff OffsiteDetained 7 Combine Detained 8 Reservoir POI-2 Detained 9 Combine POI-2 Post ' Composite (Aree/CN) _ [(0.330 x 60) + (0.860 x 98)] / 1.190 P0I-2 Pre Q (CIS) Hyd. No. 3 -- 1 Year Q (CIS) 4.00 4.00 0.45 0.40 0.45 0.40 0.09 0.09 0.08 0.08 3.00 3.00 0.35 0.35 0.07 0.07 0.30 0.30 0.06 0.06 0.25 0.25 0.05 0.05 2.00 2.00 0.20 0.20 0.04 0.04 1.00 1.00 0.15 0.15 0.03 0.03 0.10 0.10 0.02 0.01 0.02 0.05 0.05 0.01 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 Time (min) -Hyd No. 3 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 Time (min) - Hyd No. 1 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 Time (min) -Hyd No. 2 Project: Quantity.gpw Tuesday, 01 / 18 / 2022 Hydrograph Report 5 Hydrograph Report 6 Hydrograph Report 7 Hydrograph Report e Hydraflow Hydrographs Extension for Autodwk® Civil 3130 by Autodesk, Inc. v202O Tuesday, 01 / 18 / 2022 Hyd. No. 4 POI-2 to Underground Hydrograph type = SCS Runoff Peak discharge = 4.566 cfs Storm frequency = 1 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 9,967 cuft Drainage area = 1.220 ac Curve number = 95* Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 2.95 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 ' Composite (Area/CN) _ [(0.200 x 80) + (1.020 x 98)] / 1.220 POI-2 to Underground Q (cirs) Hyd. No. 4 - 1 Year Q (CIS) Hydraflow Hydrographs Extension for AutodeskO Civil 3130 by Autodesk, Inc. v202O Tuesday, 01 / 18 / 2022 Hyd. No. 5 POI-2 Undetained Hydrograph type = SCS Runoff Peak discharge = 0.144 cfs Storm frequency = 1 yrs Time to peak = 718 min Time interval = 2 min Hyd. volume = 289 cuft Drainage area = 0.070 ac Curve number = 80 Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 2.95 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 POI-2 Undetained Q (C1s) Hyd. No. 5 -- 1 Year Q (Crs) Hydrafim Hydrographs Extension for Autodesk® Civil 3130 by Autodesk, Inc. v202O Tuesday, 01 / 18 / 2022 Hyd. No. 6 Offsite Detained Hydrograph type = SCS Runoff Peak discharge = 0.021 cfs Storm frequency = 1 yrs Time to peak = 718 min Time interval = 2 min Hyd. volume = 41 cult Drainage area = 0.010 ac Curve number = 80 Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 2.95 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Offsite Detained Q (CIS) Hyd. No. 6 - 1 Year Q (CIS) Hydraflow Hydrographs Extension for Autodwk® Civil 3130 by Autodesk, Inc. v202O Tuesday, 01 / 18l 2022 Hyd. No. 7 Detained Hydrograph type = Combine Peak discharge = 4.587 cfs Storm frequency = 1 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 10,008 cuft Inflow hyds. = 4, 6 Contrlb. drain. area = 1.230 ac Detained Q (CIS) Hyd. No. 7 -- 1 Year Q (Crs) 5.00 5.00 0.50 0.50 0.10 0.10 5.00 5.00 0.45 0.45 0.09 0.09 4.00 4.00 0.40 0.40 0.08 0.08 4.00 4.00 0.35 0.30 0.35 0.30 0.07 0.07 3.00 2.00 3.00 2.00 3.00 2.00 3.00 2.00 0.06 0.06 0.25 0.25 0.05 0.05 0.20 0.20 0.04 0.04 0.15 0.15 0.03 0.03 1.00 1.00 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 Time (min) - Hyd No. 4 0.10 0.10 0.02 0.02 1.00 1.00 0.05 0.05 0.01 0.01 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 Time (min) -Hyd No. 7 -Hyd No. 4 -Hyd No. 6 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 Time (min) -Hyd No. 5 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 Time (min) -Hyd No. 6 Z EE W W W 10 Z W O ZjZ(AU Z W H U W 0 Z W W j W i.gc9t=oErn Q 2 W Z >Z0W0 ai022aQZQ 00<CL Fof 0zW< of 0 Q J WD U) W IX Z D Q > o J af U W H U) REVISIONS REV i DATE I COMMENT ' 1 I01/21/2022 PER COUNTY 1 �ISC COMMENTS I RTY • I Know what's below. Call before you dig. ALWAYS CALL 811 It's fast. It's free. It's the law. NOT APPROVED FOR CONSTRUCTION THIS DRAWING IS INTENDED FOR MUNICIPAL AND/OR AGENCY REVIEW AND APPROVAL. IT IS NOT INTENDED AS A CONSTRUCTION DOCUMENT UNLESS INDICATED OTHERWISE. PROJECT No.: V211201 DRAWN BY: DSH CHECKED BY: RTY DATE: 8/27/2021 CAD I.D.: DRIN -1 PROJECT: VIRGINIA STORMWATER MANAGEMENT PLAN FOR - ��scouNt PROPOSED LOCATION 1636 SEMINOLE TRAIL ALBERMARLE COUNTY CHARLOTTESVILLE, VIRGINIA 22901 BOHLERI 2150 ASHLAND RD. SUITE 200 RICHMOND, VIRGINIA23146 Phone: (804)893-8200 VA@BohlerEng.com kUli OF L V NYA R .� Lic. No. 0402056625 � �O.t� 01/21/2022 t1� SHEET TITLE: STORMWATER COMPLIANCE PLAN SHEET NUMBER: C-903 REVISION 1 - 01/21/2022 Hydrograph Report 9 Pond Report 70 Hydrograph Report 11 Hydrograph Report 12 Hydreflow Hydrographs Extension for Autodesk® Civil 3136 by Autodesk, Inc. v202O Tuesday, 01 / 18 / 2022 Pond No. 1 - Storage Pond Data Pond storage is based on userdMned values. Stage / Storage Table Stage (ft) Elevation (ft) Contour area (sgft) Incr. Storage (cult) Total storage (cult) 0.00 490.90 n/a 0 0 0.25 491.15 Na 134 134 0.50 491.40 n/a 238 372 0.76 491.65 n/a 297 669 1.00 491.90 n/a 339 1,007 1.25 492.15 We 368 1,376 1.50 492.40 Tire 389 1,765 1.75 492.65 Tire 403 2,167 2.00 492.90 Tire 400 2,567 2.25 493.15 We 418 2,985 2.50 493.40 n/a 403 3,388 2.75 493.65 n/a 389 3,777 3.00 493.90 n/a 368 4,145 3.25 494.15 n/a 339 4,484 3.50 494AO n/a 297 4,781 3.75 494.65 n/a 238 5,018 4.00 494.90 n/a 134 5,152 Hydreflow Hydrographs Extension for Autodesk® Civil 31® by Autodesk, Inc. v2020 Tuesday, 01 / 18! 2022 Hyd. No. 8 POI-2 Detained Hydrograph type =Reservoir Peak discharge = 2.239 cfs Storm frequency = 1 yrs Time to peak = 722 min Time interval = 2 min Hyd. volume = 10,003 cuft Inflow hyd. No. = 7 -Detained Max. Elevation = 493.27 ft Reservoir name = Storage Max. Storage = 3,180 cuft Hydreflow Hydrographs Extension for Autodesk® Civil 3130 by Autodesk, Inc. v2020 Tuesday, 01 / 18! 2022 Hyd. No. 9 POI-2 Post Hydrograph type =Combine Peak discharge = 2.314 cfs Storm frequency = 1 yrs Time to peak = 722 min Time interval = 2 min Hyd. volume = 10,292 cuft Inflow hyds. = 5, 8 Contrib. drain. area = 0.070 ac Hydreflow Hydrographs Extension for Autodesk® Civil 3130 by Autodesk, Inc. v2020 Tuesday, 01 / 18! 2022 Hyd. No. 1 POI-1 Pre Hydrograph type =SCS Runoff Peak discharge = 0.390 cfs Storm frequency = 2 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 790 cuft Drainage area = 0.120 ac Curve number = 83* Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 3.59 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 P0I-2 Post Q ids) Q (Cfs) Hyd. No. 9 -- 1 Year Storage Indication method used. POI-2 Detained Q WIN) Q (cfs) Hyd. No. 8 -1 Year 5.00 5.00 4.00 4.00 ' Composite (Area/CN) _ [(0.100 x 80) + (0.020 x 98)] / 0.120 1120I-1 Pre Q (ors) Q (cfs) Hyd. No. 1 -- 2 Year 0.50 0.50 Culvert / Orifice Structures Weir Structures A B C PrfRsr A D 11 11 11 I 1 11 IB] ICI 11 Rise (in) = 15.00 3.00 Inactive Inactive Crest Len (ft) = 4.50 1.50 0.00 0.00 Span (In) = 15.00 3.00 O.DO 0.00 Crest El. (ft) = 494.00 492.80 0.00 0.00 No. Barrels = 1 2 0 0 Weir Coe f. = 3.33 3.33 3.33 3.33 Invert El. (ft) = 490.80 490.90 O.DO 0.00 Weir Type = 1 Rest - - Length (ft) = 83.69 0.00 O.DO 0.00 Multistage = Yes Yes No No Slope (%) = 1.08 0.00 0.00 n/a N-Value = .013 .013 .013 n/a Orifice Coee. = 0.60 ().60 0.80 0.60 Exdll.(Inrhr) = 0.000 (by Wet area) Multistage = Na Yes No No TIN Elw. (ft) = 0.00 3.00 3.00 0.45 0.40 0.45 0.40 0.35 0.35 3.00 3.00 Nob: Culvarrp'�fice auXlo*a are analyzeE untlerinlel(Ic)find eutlat(ac)mntrd. Weir rieem cheGcetl for orifice contli6ona (ic)arMwbmer9er,m). (s2.00 Stage (ft) Stage / Discharge Elw (ft) 4.00 494.90 2.00- 0.30 0.30 0.25 0.25 3.00 493.90 2.00 2.00 1.00 1.00 0.20 0.20 0.15 0.15 1.00 1.00 0.10 0.10 2.00- 492.90 0.05 0.05 1.00 491.90 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 -Hyd No. 9 -Hyd No. 5 -Hyd No. 8 Time (min) 2 0.00 490.90 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 11.00 Total Q Discharge (cfs) 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 -Hyd No. 1 Time (min) 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 - Hyd No. 8 -Hyd No. 7 ®Total storage used = 3,180 tuft Time (min) Hydrograph Report 13 Hydrograph Report 74 Hydrograph Report 15 Hydrograph Report 16 Hydreflow Hydrographs Extension for Autodesk® Civil 31® by Autodesk, Inc. v2020 Tuesday, 01 / 18! 2022 Hyd. No. 2 POI-1 Post Hydrograph type = SCS Runoff Peak discharge = 0.058 clis Storm frequency = 2 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 116 cuft Drainage area = 0.020 ac Curve number = 80* Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 3.59 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Hydreflow Hydrographs Extension for Autodesk® Civil 3130 by Autodesk, Inc. v2020 Tuesday, 01 / 18! 2022 Hyd. No. 3 POI-2 Pre Hydrograph type = SCS Runoff Peak discharge = 4.901 clis Storm frequency = 2 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 10,255 cuft Drainage area = 1.190 ac Curve number = 90* Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 3.59 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Hydreflow Hydrographs Extension for Autodesk® Civil 3130 by Autodesk, Inc. v2020 Tuesday, 01 / 18! 2022 Hyd. No. 4 POI-2 to Underground Hydrograph type = SCS Runoff Peak discharge = 5.672 clis Storm frequency = 2 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 12,570 cuft Drainage area = 1.220 ac Curve number = 95* Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 3.59 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Hydreflow Hydrographs Extension for Autodesk® Civil 3130 by Autodesk, Inc. v2020 Tuesday, 01 / 18! 2022 Hyd. No. 5 POI-2 Undetained Hydrograph type = SCS Runoff Peak discharge = 0.202 clis Storm frequency = 2 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 407 cuft Drainage area = 0.070 ac Curve number = 80 Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 3.59 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 ' Composite (Area/CN) _ [(0.020 x 80)] 10.020 P0I-1 Post Q (ars) Hyd. No. 2 -- 2 Year Q (Cfs) ' Composite (Area/CN) _ [(0.330 x 60) + (0.860 x 98)] / 1.190 POI-2 Pre Q (GFS) Hyd. No. 3 -- 2 Year Q (cfs) ' Composite (Area/CN) _ [(0.200 x 60) + (1.020 x 98)] / 1.220 POI-2 to Underground Q (CIS) Hyd. No. 4 -- 2 Year Q (ds) 6.00 6.00 POI-2 Undetained Q (ars) Hyd. No. 5 -- 2 Year Q (S) 0.50 0.50 0.10 0.10 5.00 5.00 0.09 0.09 0.45 0.45 5.00 5.00 0.40 0.40 4.00 4.00 0.08 0.08 4.00 4.00 0.07 0.07 0.35 0.35 3.00 3.00 0.06 0.06 0.30 0.30 3.00 3.00 0.05 0.05 0.25 0.25 0.04 0.04 2.00 1.00 2.00 1.00 0.20 0.20 2.00 2.00 0.03 0.03 0.15 0.15 0.02 0.02 0.10 0.10 EM 1.00 1.00 0.01 0.01 Ell 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 Time (min) -Hyd No. 4 0.05 0.05 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 Time (min) -Hyd No. 5 o.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 Time (min) - Hyd No. 2 o.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 Time (min) -Hyd No. 3 MIJ 2 O m (D Z EE W W Z W fin W f7 ZjZ(AU W 0 Z W W 0EZW t=o2, W i.gwZ >z0W0 f2i»22aQZQ zfn�wzFl- OzQaa~O Q J W0� W Z Z as > o J of U W V5 REVISIONS REV i DATE I COMMENT ' 1 I01/21/2022 PER COUNTY 1 �ISC COMMENTS I RTY I Know what's below. Call before you dig. ALWAYS CALL 811 It's fast. It's free. It's the law. NOT APPROVED FOR CONSTRUCTION THIS DRAWING IS INTENDED FOR MUNICIPAL AND/OR AGENCY REVIEW AND APPROVAL. IT IS NOT INTENDED AS A CONSTRUCTION DOCUMENT UNLESS INDICATED OTHERWISE. PROJECT NO.: V211201 DRAWN BY: DSH CHECKED BY: RTY DATE: 8/27/2021 CAD I.D.: DRIN -1 PROJECT: VIRGINIA STORMWATER MANAGEMENT PLAN FOR - �iscouNt PROPOSED LOCATION 1636 SEMINOLE TRAIL ALBERMARLE COUNTY CHARLOTTESVILLE, VIRGINIA 22901 BOHLERI 2150 ASHLAND RD. SUITE 200 RICHMOND, VIRGINIA23146 Phone: (804)893-8200 VA@BohlerEng.com pLTH OF L V NYA R .� Lic. No. 0402056625 SOWS 01/21/2022 IN t1 kx�AL SHEET TITLE: STORMWATER COMPLIANCE PLAN SHEET NUMBER: C-904 REVISION 1 - 01/21/2022 Hydrograph Report 17 Hydrograph Report 18 Hydrograph Report 19 Hydrograph Report zu Hydraflow Hydrographs E#ension for Autodesk® Civil 3D® by Autodesk, Inc. v202O Tuesday, 01 118! 2022 Hyd. No. 6 Offsite Detained Hydrograph type = SCS Runoff Peak discharge = 0.029 cfs Storm frequency = 2 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 58 cuft Drainage area = 0.010 ac Curve number = 80 Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 3.59 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Hydraflow Hydrographs E#ension for Autodesk® Civil 3DO by Autodesk, Inc. v2020 Tuesday, 01 / 18! 2022 Hyd. No. 7 Detained Hydrograph type = Combine Peak discharge = 5.701 cls Storm frequency = 2 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 12,628 cuft Inflow hyds. = 4,6 Contrib. drain. area = 1.230 ac Hydraflow Hydrographs E#ension for Autodesk® Civil 3DO by Autodesk, Inc. v2020 Tuesday, 01 / 18! 2022 Hyd. No. 8 POI-2 Detained Hydrograph type = Reservoir Peak discharge = 3.739 cis Storm frequency = 2 yrs Time to peak = 720 min Time interval = 2 min Hyd. volume = 12,623 cuft Inflow hyd. No. = 7 -Detained Max. Elevation = 493.53 ft Reservoir name = Storage Max. Storage = 3,592 cuft Hydraflow Hydrographs E#ension for Autodesk® Civil 31® by Autodesk, Inc. v2020 Tuesday, 01 / 18! 2022 Hyd. No. 9 POI-2 Post Hydrograph type = Combine Peak discharge = 3.901 cls Storm frequency = 2 yrs Time to peak = 720 min Time interval = 2 min Hyd. volume = 13,030 cuft Inflow hyds. = 5,8 Contrib. drain. area = 0.070 ac Detained Q (afs) Hyd. No. 7 -- 2 Year Q (415) 6.00 6.00 POI-2 Post Q (afs) Hyd. No. 9 -- 2 Year Q (cfs) 4.00 Storage Indication method used. 1130I-2 Detained Q (afs) Hyd. No. 8 -- 2 Year Q (Cfs) 6.00 6.00 Offsite Detained Q (efs) Hyd. No. 6 -- 2 Year Q (Cfs) 0.10 0.10 4.00 0.09 0.09 3.00 2.00 3.00 2.00 5.00 5.00 5.00 5.00 0.08 0.08 4.00 4.00 4.00 4.00 0.07 0.07 0.06 0.05 0.04 0.06 0.05 0.04 3.00 3.00 3.00 3.00 1.00 1.00 2.00 2.00 0.03 0.02 0.03 0.02 2.00 1.00 2.00 1.00 1.00 1.00 0.01 0.01 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 _ Hyd No. 7 - Hyd No. 4 - Hyd No. 6 Time (min) 0.00 1 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 Hyd No. 9 - Hyd No. 5 - Hyd No. 8 Time (min) 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 - Hyd No. 6 Time (min) 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 Hyd No. 8 - Hyd No. 7 ® Total storage used = 3,592 cult Time (min) Hydrograph Report 21 Hydrograph Report 22 Hydrograph Report 23 Hydrograph Report za Hydraflow Hydrographs E#ension for Autodesk® Civil 3D® by Autodesk, Inc. v202O Tuesday, 01 / 18 / 2022 Hyd. No. 1 POI-1 Pre Hydrograph type = SCS Runoff Peak discharge = 0.724 cfs Storm frequency = 10 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 1,497 cuft Drainage area = 0.120 ac Curve number = 83* Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 5.54 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Hydraflow Hydrographs EMension for Autodesk® Civil 3D® by Autodesk, Inc. v2020 Tuesday, 01 118 / 2022 Hyd. No. 2 POI-1 Post Hydrograph type = SCS Runoff Peak discharge = 0.112 cfs Storm frequency = 10 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 229 cuft Drainage area = 0.020 ac Curve number = 80* Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 5.54 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Hydraflow Hydrographs EMension for Autodesk® Civil 3D® by Autodesk, Inc. v202O Tuesday, 01 / 18 / 2022 Hyd. No. 3 POI-2 Pre Hydrograph type = SCS Runoff Peak discharge = 8.236 cfs Storm frequency = 10 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 17,814 cuft Drainage area = 1.190 ac Curve number = 90* Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 5.54 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Hydraflow Hydrographs 6dension for Autodesk® Civil 310 by Autodesk, Inc. v202O Tuesday, 01 / 18l 2022 Hyd. No. 4 POI-2 to Underground Hydrograph type = SCS Runoff Peak discharge = 9.004 cfs Storm frequency = 10 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 20,572 cuft Drainage area = 1.220 ac Curve number = 95* Basin Slope = 0.0 % Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 5.54 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 ' Composite (Area/CN) _ [(0.100 x 80) + (0.020 x 98)] ! 0.120 1150I-1 Pre Q (ars) Hyd. No. 1 --10 Year Q (Cfs) 1.00 1.00 ' Composite (ArealCN) _ [(0.020 x 90)] 10.020 POI-1 Post Q (ars) Hyd. No. 2 --10 Year Q (Crs) ' Composite (Area/CN) _ [(0.330 x 80) + (0.860 x 98)] 11.190 1130I-2 Pre Q (Crs) Hyd. No. 3 --10 Year Q (Cfs) 10.00 10.00 ' Composite (Area/CN) _ [(0.200 x 80) + (1.020 x 98)] ! 1.220 1130I-2 to Underground Q (Crs) Hyd. No. 4 --10 Year Q (CIS) 10.00 10.00 0.50 0.50 0.45 0.45 0.90 0.90 0.80 0.80 0.40 0.40 8.00 8.00 8.00 8.00 0.70 0.70 0.35 0.35 0.60 0.60 0.30 0.30 6.00 4.00 6.00 4.00 6.00 4.00 6.00 4.00 0.50 0.50 0.25 0.25 0.40 0.40 0.20 0.20 2.00 2.00 2.00 2.00 0.30 0.30 0.15 0.15 0.20 0.20 0.10 0.10 0.05 0.10 0.10 0.05 o.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 -Hyd No. 3 Time (min) 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 -Hyd No. 4 Time (min) 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 Time (min) - Hyd No. 1 o.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 -Hyd No. 2 Time (min) f, z EE W W W rn z W O ZjZ(AU Ud WFOuI� 0 Z W W > W E c9t=orn i.g¢x wZ >Z0w0 viZ)2aQzQ zcn2WZF� °zQCIL aa~o Q J WD U) LidZ Z d Q > aJ of U W REVISIONS REV i DATE I COMMENT ' 1 I01/21/2022 PER COUNTY 1 �ISC COMMENTS I RTY • I Know what's below. Call before you dig. ALWAYS CALL 811 It's fast. It's free. It's the law. NOT APPROVED FOR CONSTRUCTION THIS DRAWING IS INTENDED FOR MUNICIPAL AND/OR AGENCY REVIEW AND APPROVAL. IT IS NOT INTENDED AS A CONSTRUCTION DOCUMENT UNLESS INDICATED OTHERWISE. PROJECT No.: V211201 DRAWN BY: DSH CHECKED BY: RTY DATE: 8/27/2021 CAD I.D.: DRIN -1 PROJECT: VIRGINIA STORMWATER MANAGEMENT PLAN FOR - vzs;� N t PROPOSED LOCATION 1636 SEMINOLE TRAIL ALBERMARLE COUNTY CHARLOTTESVILLE, VIRGINIA 22901 BOHLERI 2150 ASHLAND RD. SUITE 200 RICHMOND, VIRGINIA23146 Phone: (804)893-8200 VA@BohlerEng.com W" OF V NYA R .� Lic. No. 0402056625 � 01 /21/2022 t1 kx�AL SHEET TITLE: STORMWATER COMPLIANCE PLAN SHEET NUMBER: C-905 REVISION 1 - 01/21/2022 Hydrograph Report 25 Hydrograph Report 26 Hydraflow Hydrographs Extension for AutodI Civil 3DO by Autodesk, Inc. v2020 Tuesday, 01 ! 18 f 2022 Hyd. No. 5 POI-2 Undetained Hydrograph type = SCS Runoff Peak discharge = 0.393 cfs Storm frequency = 10 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 803 cuft Drainage area = 0.070 ac Curve number = 80 Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conic. (Tc) = 5.00 min Total precip. = 5.54 in Distribution = Type II Storm duration = 241 Shape factor = 484 POI-2 Undetained crs Hyd. No. 5 -- 10 Year Q () 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 00 0 120 240 360 480 600 720 840 960 1080 1200 1320 Time (min) Hyd No. 5 Hydrograph Report 27 Hydrograph Report 28 Hydraflow Hydrographs Extension for Autodesk® Civil 3136 by Autodesk, Inc. v202O Tuesday, 01 / 18 / 2022 Hyd. No. 7 Detained Hydrograph type = Combine Peak discharge = 9.060 cfs Storm frequency = 10 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 20,686 cuft Inflow hyds. = 4, 6 Contrib. drain. area = 1.230 ac Q (cfs) 10.00 1.1 0.00 0 120 - Hyd No. 7 Detained Hyd. No. 7 --10 Year 240 360 480 - Hyd No. 4 600 720 - Hyd No. 6 840 960 Q (cfs) 10.00 6.00 Ifj�1I11 2.00 0.00 1080 1200 Time (min) Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2020 Tuesday, 01 / 18 / 2022 Hyd. No. 8 POI-2 Detained Hydrograph type = Reservoir Peak discharge = 7.669 cfs Storm frequency = 10 yrs Time to peak = 720 min Time interval = 2 min Hyd. volume = 20,682 cuft Inflow hyd. No. = 7 -Detained Max. Elevation = 494.09 ft Reservoir name = Storage Max. Storage = 4,409 cuft Storage Indication method used. Q (cfs 10.00 P0I-2 Detained Hyd. No. 8 --10 Year IL Q (cfs) 10.00 8.00 6.00 [orb] 2.00 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 - Hyd No. 8 -Hyd No. 7 ®Total storage used = 4,409 tuft Time (min) Hydraflow Hydrographs Extension for AutodI Civil 3DO by Autodesk, Inc. v2020 Tuesday, 01 ! 18 f 2022 Hyd. No. 6 Offsite Detained Hydrograph type = SCS Runoff Peak discharge = 0.056 cfs Storm frequency = 10 yrs Time to peak = 716 min Time interval = 2 min Hyd. volume = 115 cuft Drainage area = 0.010 ac Curve number = 80 Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conic. (Tc) = 5.00 min Total precip. = 5.54 in Distribution = Type II Storm duration = 241 Shape factor = 484 Offsite Detained 1 1 •1 •1 :1 •11 1 :1 •.1 1:1 11 1 Hydrograph Report 29 Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2020 Tuesday, 01 / 18 / 2022 Hyd. No. 9 POI-2 Post Hydrograph type = Combine Peak discharge = 8.023 cfs Storm frequency = 10 yrs Time to peak = 718 min Time interval = 2 min Hyd. volume = 21,484 cuft Inflow hyds. = 5, 8 Contrib. drain. area = 0.070 ac Q (ors 10.00 1.1 POI-2 Post Hyd. No. 9 --10 Year Q (cfs) 10.00 8.00 6.00 fS�rb1 2.00 0.00 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 Hyd No. 9 - Hyd No. 5 - Hyd No. 8 Time (min) J 0 m z z EE DJ W W Z WC7 ZjZ(AU z WFOuI� 0 Z W W E z 2, W l.gc9t=orn ¢x wZ J> Z 0 W 0 ai022aQZQ 00<CLzFof 0zW< 0 Q J 00 Z) W Z Z aQ J o Q of J F U W H Fn REVISIONS REV DATE COMMENT DRAn SY CNECnET 1 01/21/2022 PER COUNTY BSC COMMENTS RTY • I Know what's below. Call before you dig. ALWAYS CALL 811 It's fast. It's free. It's the law. NOT APPROVED FOR CONSTRUCTION THIS DRAWING IS INTENDED FOR MUNICIPAL AND/OR AGENCY REVIEW AND APPROVAL. IT IS NOT INTENDED AS A CONSTRUCTION DOCUMENT UNLESS INDICATED OTHERWISE. PROJECT No.: V211201 DRAWN BY: DSH CHECKED BY: RTY DATE: 8/27/2021 CAD I.D.: DRIN -1 PROJECT: VIRGINIA STORMWATER MANAGEMENT PLAN FOR PROPOSED LOCATION 1636 SEMINOLE TRAIL ALBERMARLE COUNTY CHARLOTTESVILLE, VIRGINIA 22901 BOHLERP 2150 ASHLAND RD. SUITE 200 RICHMOND, VIRGINIA23146 Phone: (804)893-8200 VA@BohlerEng.com rl A_WliI e�vl Lic. No. 0402056625 1 01/21/2022 A SHEET TITLE: STORMWATER COMPLIANCE PLAN SHEET NUMBER C-906 ti REVISION 1 - 01/21/2022 Section 6. Pollution Prevention Plan. (reference County Code 17-404 and State Regulation 9VAC25-880-70 part II section A.4) A. Plan showing pollution activities and prevention practices (Provide a reduced I Ix17 copy of a site plan on which all of the following activity locations are clearly marked. Keep this plan up-to-date with ongoing site changes and inspections.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County I\ I \IZANDS N/F ; 1 MPB, INC. D.B.';5476 PG. 471 PIN- 06100-00-00-12000 Co.- HC (, !IOHWAY COMMERCIAL) I I USE- WAREHOUSE 1 , I ` I \ 1 U I 1 I I I I I I 1 I I I I I 1 I I 1 I 50 0, \ 1`\ `�` `` `` \ •``\ `\ d9\ \\ i \ // leji A i,'\`1f1 1 �l 1; ,II / �BEN�NAIAR, BE i -f 1,11,11 SET ELEI!=499.18 TREES (78R) RR \ I i If �' I ' i it ' CLEARANCE I %1 \/ ; \ BRNE 7NRU� \\ \A/ENV (TBR) IDS :! / 1 \`, 11 I `\\ `\\ \\ 1 I ``\\ `. \ , � • `\ `\ \ �\�� ; / E.t:�7NG TREES (7 I1 I LANs ,S N/F I S S C ItACOU(S/TIONS'. /NC. \ : ` \ � \ tl D.B. 1429`\Pc. 3iGt \ \ . `\ . �\ ..\; / 20 I )DIN.- 06100-00�00-120LZ 1 ZONED.• HC (H/GHWAX COMME/�G'/ALA I USE. SELF STORAGE ' \ IRON ROD 3' ` FOUND 1 --505— �\ ' I � \ �`\ 505 \ I `f I ----- 505' f----------------- - - I f ' ________________ / \ / - ___________` `_ ____ ________ _- ---- LANDSY -------- WILCOHESS PG / P-Nl 05100 bO-G ZONED HC�H(GHWAY -- `USE.• FEAST, ----------------------------- SULL/VAN, W/LLIAM EDWARD & ✓OHN A F D.B. 1095 PG. 237 PIN.- 06100-00-00-120WO ZONED.- HC rHIGHWAY CODUERC/AL) USE: COMMERCIAL , VIRGINIA UNIFORM CODING SYSTEM FOR EROSION AND SEDIMENT CONTROL PRACTICES NO. TITLE KEY SYMBOL I i � i -- 501'-' ------ 506 ' i ---------------------------------------------- , ------------------ ---------- ------------------ 1 \ EROSION AND SEDIMENT CONTROL NOTES: 1. SEE SHEET C-603 FOR SEQUENCE OF CONSTRUCTION. 2. OFFSITE BORROW OR HAUL TO BE FROM AN APPROVED SITE. \ CURB INLET \ \ \RIM=50233 \\\` - OUT \ \ �\°°GONCR�TEWASH .s` REA f 20' s00 /TARP MANHOLE R/ NOM=4945 C � /RB INLET 1s=499.34 V 49000 EE DEMO NOTE 4) S4/Y CUT SOILS TABLE SYMBOL SOIL NAME SLOPES HSG 88 UDORTHENTS, LOAMY 2-25% D N $917,125 / -- r, z E w W w rn z f7 ZjzWw0 z w10OW5 OZ W W 2 5 W zrCO�prrw Fw¢x Wz >ZOW0O aiD2aQZQ zc42WzF1- 0zQ<a 0of Of J 0 U) W Z z aQ > aJ of 5 w I— V5 REVISIONS REV DATE COMMENT CxECxeD er 1 01/21/2022 PER COUNTY BSC COMMENTS RTY • 1 Know what's below. Call before you dig. ALWAYS CALL 811 It's fast. It's free. It's the law. NOT APPROVED FOR CONSTRUCTION THIS DRAWING IS INTENDED FOR MUNICIPAL AND/OR AGENCY REVIEW AND APPROVAL. IT IS NOT INTENDED AS A CONSTRUCTION DOCUMENT UNLESS INDICATED OTHERWISE. PROJECT No.: V211201 DRAWN BY: DSH CHECKED BY: RTY DATE: 8/27/2021 CAD I.D.: GRAD -1 PROJECT: VIRGINIA STORMWATER MANAGEMENT PLAN FOR DO�Qa�aQ PROPOSED LOCATION 1636 SEMINOLE TRAIL ALBERMARLE COUNTY CHARLOTTESVILLE, VIRGINIA 22901 BOHLERP 2150 ASHLAND RD. SUITE 200 RICHMOND, VIRGINIA23146 Phone: (804)893-8200 VA@BohlerEng.com Lic. No. 0402056625 6, 01/21/2022 4 9=4.86 i AV / INVA=4B5. 96 y � - - SHEET TITLE: JCJF��o�' - LEGEND EROSION AND & °0 ��` / — — — — • — — — PROP SAWCUT SEDIMENT SANh�CC� \ `��° Q(���pp'L�Q�� --- �4.51 t e (. kh _\ ----- LOW L04V— LIMIT OF WORK CONTROL PLAN L 19 ♦Avoo� P\°\ LOD LOD LIMIT OF DISTURBANCE PHASE 1 p9 ,C \ G g99 �c�4%0 �° SHEET NUMBER: A00' JOB `oy P (�� EXISTING DRAINAGE DIVIDES 6 O w 20 10 20 P5 1 -2o REVISION 1 - 01/21/2022 ti B. Sources of Pollutants, locations, and prevention practices Pollutant, or Pollutant Location on site Prevention Practices, Generating Activity Control Measures Below C. Sources of Pollutants, continued. Common activities and minimum control and prevention ractices Pollutant, or Pollutant Location on site Prevention Practices, Generating Activity Control Measures Follow Erosion and Sediment Control Clearing, grading, excavating, and un- Land disturbance area Plan. Dispose of clearing debris at stabilized areas acceptable disposal sites. Seed and mulch, or sod within 7 da s of land clearing Cover storm drain inlets and use drip Paving operations Roads and driveways pans and absorbent/oil dry for all paving machines to limit leaks and spills Direct concrete wash water into a leak - Concrete washout Current location and detail shown proof container or leak -proof settling and cement waste on plan basin that is designed so that no overflows can occur Enclose or cover material storage areas. Mix paint indoors in a containment area or Structure construction, stucco, Structures in a flat unpaved area. Prevent the painting, and cleaning discharge of soaps, solvents, detergents and wash water, paint, form release oils and curing compounds. Water shall be filtered, settled or similarly Dewatenng operations Dewatenng sites shown on plan treated prior to discharge as shown on plan. Designated areas for material delivery Material delivery and storage Designated area shown on plan and storage. Placed near construction entrances, away from waterways and drainage paths Material use during building process Building areas Follow manufacturer's instructions . MSDS's attached. waste collection area will not receive a substantial amount of runoff from upland Solid waste disposal Current designated container areas areas and does not drain directly to a on plan waterway. Containers have lids covered before periods of rain, or are in a covered area. Scheduled collection to prevent Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Pollutant, or Pollutant Location on site Prevention Practices, Generating Activity Control Measures overfilling. MATERIALS NOT TO BE BURIED ONSTTE Convenient and well -maintained portable sanitary facilities will be Sanitary waste Current locations shown on plan provided, and located away from waterways or inlets. Such facilities shall be regularly maintained. Apply fertilizers in accordance with Landscaping operations Landscape areas shown on plan manufacturer's recommendations and not during rainfall events To be treated in a sediment basin or Wash Waters Wash areas shown on plan better control as specified on plan. Minimize the discharge of pollutants from equipment and vehicle washing Vehicle and equipment washing Designated areas and details shown on Provide containment and filtering for all plan wash waters per the plan Minimization of exposure to precipitation and stormwater. Minimize the exposure of building materials, building products, construction wastes, trash, landscape materials, fertilizers, pesticides, herbicides, detergents, sanitary waste, and other materials present on the site to precipitation and to stormwater. (Identify all non-stormwater discharges to occur on your site. Keep this plan up-to-date with ongoing site changes and inspections. See CGP, 9VAC25-880-70 section E for examples of non-stormwater discharges.) 0 Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County E. Persons responsible for pollution prevention practices (Provide the names and contact information for all persons responsible for prevention practices as listed above.) F. Response and reporting practices Minimize discharges from spills and leaks. Minimize the discharge of pollutants from spills and leaks and implement chemical spill and leak prevention and response procedures as follows. Respond to all spills, leaks and discharges as follows, Report all spills, leaks and discharges as follows, (Provide detailed response and reporting practices according to 9VAC25-880-70, Part II, section AA.e.) G. Pollution Prevention Awareness (Describe training and procedures to provide awareness and compliance for all measures in this document; waste management, wash waters, prevention measures, etc.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County F. Response and reporting practices 1. Stormwater Management/Nutrient Credits (1) The project proposes the purchasing of 0.66 nutrient credits in order to meet the required TP Load Reduction for the proposed improvements. See Section 5 Stormwater Management Plan Sheet C-902 for details. 2. Other Controls (1) No solid materials, including building materials, garbage and debris shall be discharged to surface waters of the State, except as authorized by a Clean Water Act §404 permit. (2) Where construction vehicle access routes intersect paved public and private roadways, provisions will be made to minimize the transport of sediment by vehicular tracking onto the paved surface. Where sediment is transported onto a road surface, the road will be cleaned thoroughly at the end of each day. Sediment will be removed from the roads by shoveling or sweeping and transported to a sediment disposal area. Street washing will be allowed only after sediment is removed in this manner. Bulk clearing of accumulated sediment will not include flushing the areas with water. Cleared sediment will be returned to the point of likely origin or other suitable location. (3) The contractor shall ensure that compliance with applicable state or local waste disposal, sanitary sewer or septic system regulations is attained. (4) Contractor will ensure that no discharges from any temporary asphalt paving operations are allowed to enter into the stormwater system. (5) Contractor will ensure that any other potential pollution sources such as the storage of fertilizers, chemicals, vehicle fueling, sanitary waste facilities, etc. will be managed in a manner consistent with local and state regulations. The contractor will provide the owner with a list of any hazardous materials at least 48 hours before bringing the materials onsite. Materials will be handled in a controlled manner with as few handlings as possible. Materials will be stored and protected in accordance with the manufacturer's recommendations and requirements of the project specifications. G. Pollution Prevention Plan (1) Short and Long -Term Goals and Criteria (a) The construction -phase erosion and sediment controls will be designed to retain sediment on site to the maximum extent practicable and to eliminate or reduce discharges of oil, grease, floatables, suspended sediments or dissolved pollutants to receiving waters. (b) All Control measures must be properly installed and maintained in accordance with the manufacturers' specifications and good engineering practices. If periodic inspections or other information indicates a control has been used inappropriately or incorrectly, the contractor must replace or modify the control for site situations. (c) If sediment escapes the construction site, off -site accumulations of sediment must be removed by Contractor at a frequency sufficient to minimize off -site impacts (e.g., sediment in the street could be washed into storm sewers by the next rain and/or pose a safety hazard to users of public streets). (d) Contractor must remove sediment from sediment traps or sedimentation ponds when the volume of the wet storage has been reduced by 50%. (e) Litter, construction debris, and construction chemicals exposed to storm water will be prevented from becoming a pollutant source for storm water discharges (e.g., screening outfalls, picked up daily). Contractor will clean storm water inlets as required to ensure that grounds and public properties are maintained free from accumulations of waste materials and rubbish. All waste materials will be removed from the site and legally disposed at public or private dumping areas. Contractor will provide on -site containers for collection of waste materials, debris, and rubbish. The disposal of solid waste in open dumps is prohibited. The disposal of wastes into the storm drainage system or waterways is prohibited. The contractor will completely remove temporary materials and equipment when their use is no longer required. At the completion of the project, the contractor will remove waste materials, rubbish, tools, equipment, machinery, and surplus materials, and clean all sight -exposed surfaces. The project site will be left clean and ready for public use. All cleaning and disposal operations will be conducted in accordance with all current local, state, and federal codes, laws, ordinances, regulations, rules, standards, etc. Disposal of demolition and debris materials will be in landfills approved for such use by local, state, and federal regulatory agencies. Debris, rubbish, concrete, and other demolition material will be removed and transported in a manner that will prevent spillage on pavements, streets, and adjacent areas. Spillage that occurs will be cleaned up. Volatile wastes will be stored in covered metal containers and removed from the premises daily. The disposal of volatile wastes in storm or sanitary drains is prohibited. The contractor will prevent the accumulation of wastes, which create hazardous conditions. (2) Inspections The contractor will bear primary responsibility for daily inspections of all E&S devices and pollution prevention measures to ensure continuing effectiveness. A record of inspections and corrective actions shall be kept on -site. The contractor will bear primary responsibility for daily inspections of all E&S devices and pollution prevention measures to ensure continuing effectiveness. A record of inspections and corrective actions shall be kept on -site. This inspection frequency shall be modified to every four (4) business days if a TMDL or exceptional waterway impacted by the construction is identified in this SWPPP. Contractor inspections shall be conducted as follows: At least once every five (5) business days. Within 48 hours of the end of a storm event that results in runoff. Where areas have been finally or temporarily stabilized or runoff is unlikely due to winter conditions (e.g., the site is covered with snow or ice, or frozen ground exists) such inspections shall be conducted at least once every month. Disturbed areas and areas used for storage of materials that are exposed to precipitation shall be inspected for evidence of, or the potential for, pollutants entering the drainage system. Erosion and sediment control measures identified in the plan shall be observed to ensure that they are operating correctly. Where discharge locations or points are accessible, they shall be inspected to ascertain whether erosion control measures are effective in preventing significant impacts to receiving waters. Where discharge locations are inaccessible, nearby downstream locations shall be inspected to the extent that such inspections are practicable. Locations where vehicles enter or exit the site shall be inspected for evidence of offsite sediment tracking. Based on the results of the inspection, if contractor believes that stonnwater controls are not operating effectively he will report such to the Design Engineer. The design engineer will revise the stonnwater pollution prevention devices as appropriate, but in no case later than seven (7) calendar days following the inspection. If the existing erosion and sediment controls need to be modified or if additional erosion and sediment controls are necessary, implementation will be completed before the next anticipated stone event. If implementation before the next anticipated stone event is impracticable, they shall be implemented as soon as practicable. Such modifications will provide for timely implementation of any changes to the plan within seven (7) calendar days following the inspection. Contractor shall prepare a report summarizing the scope of the inspection, names and qualifications of personnel making the inspection, the dates of the inspection, major observations relating to the implementation of the stonnwater pollution prevention plan, and actions taken in accordance with Part II F.4 and II G of the DEQ Stonnwater Regulations. The report shall be made and retained as part of the stonnwater pollution prevention plan in accordance with Part 11 B of the regulations. Major observations should include: the location(s) of discharges of sediment or other pollutants from the site; location(s) of erosion and sediment controls that need to be maintained; location(s) of erosion and sediment controls that failed to operate as designed or proved inadequate for a particular location; and location(s) where additional erosion and sediment controls are needed that did not exist at the time of inspection. Such reports shall identify any incidents of noncompliance. Where a report does not identify any incidents of noncompliance, the report shall contain a certification that the facility is in compliance with the stormwater pollution prevention plan and this permit. The report shall be signed in accordance with Part III K of this permit. Copies of the report forms to be completed by the inspector are attached in Appendix B. The inspection reports will be signed in accordance with the permit requirements. These reports will be provided to the construction manager at the completion of the project. Section 7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload allocation, and exceptional waters. (Provide detailed measures for any applicable TMDL) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 8. Qualified personnel The following personnel are responsible for inspections; (Provide the name, telephone number, and qualifications of the qualified personnel conducting inspections.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 9. Signed Certification (Provide certification according to 9VAC25-870-370) CERTIFICATION "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Operator Name: Matthew Johnson Company: Halle Properties, LLC C/O Discount Tire Title: Signature: Date: Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 10. Delegation of authority. (Provide the persons or positions with authority to sign inspection reports or to modify the stormwater pollution prevention plan. A formal, signed delegation of authority is needed.) Delegation of Authority I, (name), hereby designate the person or specifically described position below to be a duly authorized representative for the purpose of overseeing compliance with environmental requirements, including the Construction General Permit, at the construction site. The designee is authorized to sign any reports, stormwater pollution prevention plans and all other documents required by the permit. (name of person or position) (company) (address) (city, state, zip) (phone) By signing this authorization, I confirm that I meet the requirements to make such a designation as set forth in the Construction General Permit (CGP), and that the designee above meets the definition of a "duly authorized representative". Operator Name: Company: Title: Signature: Date: Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 11. General permit copy (Provide a copy of the construction general permit, 9VAC25-880) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County COMMONWEALTH of VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY General Permit No.: VAR10 Effective Date: July 1, 2019 Expiration Date: June 30, 2024 GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION ACTIVITIES AUTHORIZATION TO DISCHARGE UNDER THE VIRGINIA STORMWATER MANAGEMENT PROGRAM AND THE VIRGINIA STORMWATER MANAGEMENT ACT In compliance with the provisions of the Clean Water Act, as amended, and pursuant to the Virginia Stormwater Management Act and regulations adopted pursuant thereto, operators of construction activities are authorized to discharge to surface waters within the boundaries of the Commonwealth of Virginia, except those specifically named in State Water Control Board regulations that prohibit such discharges. The authorized discharge shall be in accordance with the registration statement filed with the Department of Environmental Quality, this cover page, Part I - Discharge Authorization and Special Conditions, Part II - Stormwater Pollution Prevention Plan, and Part III - Conditions Applicable to All VPDES Permits as set forth in this general permit. Construction General Permit Effective July 1, 2019 Page 2 of 26 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. Section 12. Inspection logs (Provide templates for your inspections. Requirements are listed in 9VAC25-880-70, Part II, section B and F.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Record of Site Inspection (Example) (Attach as many sheets as necessary, including maps) Location Control Measure Incident of Non - Complianc e (YIN)' Comments Type Maintenance Req'd (YIN) Additional E&S Controls Req'd (YIN) Name: Title: Date: Signature: If no incidents of Non -Compliance have been noted above, I certify that the site is in compliance with the provisions of the Plan and Permit Record of Site Inspection (Example) (Attach as many sheets as necessary, including maps) Location Control Measure Incident of Non - Complianc e (YIN)' Comments Type Maintenance Req'd (YIN) Additional E&S Controls Req'd (YIN) Name: Title: Date: Signature: If no incidents of Non -Compliance have been noted above, I certify that the site is in compliance with the provisions of the Plan and Permit