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HomeMy WebLinkAboutWPO201900063 VSMP - SWPPP 2020-02-05tt arj COUNTY OF ALBEMARLE ■ -7 Department of Community Development � 401 McIntire Road, North Wing Charlottesville Virginia 22902-4596 .. K' ►�` Tel. (434) 296-5832 • Fax (434) 972-4126 Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: ProjectName: Cale Elementary School Safe Routes to School (SRTS) Address: 1757 Avon Street Extended Charlottesville, VA 22902 Prepared by: Name: A. Morton Thomas & Assoc. Inc. Prepared for: Name: County of Albemarle SWPPP Preparation Date: January 30, 2020 (This document is to be made publicly available according to 9VAC25-880-70, Part II, section D) VE COLEMAN No. 053234 24 -�a A 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 FOR OFFICE USE ONLY GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM ID Number: _ CONSTRUCTION ACTIVITIES (VAR10) Technical Criteria: 1113 ❑ IIC ❑ REGISTRATION STATEMENT 2019 NEW ISSUANCE Z MODIFICATION WITH ACREAGE INCREASE ❑ Existing Permit Coverage Number (if applicable, VAR10####): Section I. Operator/Permittee Information. RE -ISSUANCE ❑ MODIFICATION WITHOUT ACREAGE INCREASE ❑ 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 VI. (per Part III. K. of the VAR10 Permit). Construction Activity Operator Name: County of Albemarle Contact person: Jack Kelsey, PE Address: 401 McIntire Road City, State, Zip Code: Charlottesville, VA 22902 Phone Number: (434) 872-4501 Primary Email: jkelsey@albemarle.org CC Email: B. Billing Information (leave blank if same as the Operator identified in Section I. A. above). This entity will receive Annual Permit Maintenance and Permit Modification Fee invoices (if applicable). Name: Contact Person: Address: City, State Zip Code: Phone Number: Primary Email: CC Email: C. May we transmit correspondence electronically? You must choose YES and include a valid email in order to pay by credit card and to receive your permit coverage approval letter via email: YES 0 NO ❑ Rev 04/2019 PAGE 1 17 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 Section II. Construction Activity Location Information. Project site 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 water bodies receiving stormwater discharges from the site. B. Construction Activity Name: Cale Elementary School Safe Routes to School Address: 1757 Avon Street Extended City and/or County and Zip Code: Charlottesville, VA 22902 Latitude and Longitude (6-digit, decimal degrees format) C. Construction Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): 37.9968,-78.5004 Work will be within and along Avon Street Extended and within school Section III. Offsite Support Activity Location Information. List all offsite support activities to be included under this permit registration. Enter additional areas on a separate page. Offsite areas not included on this registration may need to obtain coverage under a separate VPDES permit. A. Offsite Activity Name: Address: City and/or County and Zip Code: Latitude and Longitude (6-digit, decimal degrees format): B. Offsite Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): Section IV. Site Information. N/A A. 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 (including the entire area to be disturbed as approved in the Stormwater 0.51 Management Plan): Primary estimated area to be disturbed (portions with 0.51 Erosion and Sediment Control Plan approval only): Offsite estimated area to be disturbed (if applicable): N/A B. Estimated Project Dates (M M/D D/YYYY) Start date: 06/08/20 Completion date: 09/15/20 C. Property Owner Status: FEDERAL ❑ STATE ❑ PUBLIC 0 PRIVATE ❑ D. Nature of the Construction Activity Description (i.e. commercial, industrial, residential, agricultural, environmental): Pedestrian Improvements E. Municipal Separate Storm Sewer System (MS4) name (if discharging to a MS4): Albemarle County Rev 04/2019 PAGE 2 17 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 F. Is this construction activity part of a common plan of development or sale? YES ❑ NO 0 G. 6t" Order Hydrologic Unit Code (HUC) and Receiving Water Name(s). Attach a separate list if needed. HUC RECEIVING WATERBODY(S) 02080204 Rivanna Section V. 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 VESCP Authority for review? YES 0 NO ❑ Erosion and Sediment Control Plan Approval Date (for estimated area to be disturbed).: C. Has land disturbance has commenced? YES ❑ NO W D. If this project is using approved Annual Standards and Specifications (AS&S), attach the completed AS&S Entity Form. AS&S Entity Name (if different from the Operator identified in Section II. A.): SEE THE FOLLOWING PAGE FOR SIGNATURE AND CERTIFICATION REQUIREMENTS AND INFORMATION Rev 04/2019 PAGE 3 17 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 Section VI. 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 (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 (MS4s), operator means the operator of the regulated MS4 system. 9VAC25-880-70. Part III. K. Signatory Requirements. Registration Statement. All Registration Statements shall be signed 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 are established or actions taken to gather complete and accurate information for state permit application requirements; and where auth ority 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. 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: Mr. Jack Signature (signed in ink): Date: Section VII. Submittal Instructions. Submit this form to the Virginia Stormwater Management Program (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: Department of Environmental Quality Office of Stormwater Management Suite 1400 PO Box 1105 Richmond VA 23218 constructionep@deg.virginia.eov If the locality is the VSMP Authority, please send to: fhe Local VSMP Authority (insert address below County of Albemarle 401 McIntire Road Charlottesville, VA 22902 Rev 04/2019 PAGE 4 17 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. The following permit actions are covered by this form: new issuance, re -issuance, modification with an increase in acreage and plan modifications that do not result in an increase in acreage. Choose NEW ISSUANCE if this Registration Statement submittal is to obtain a new permit coverage, RE -ISSUANCE to renew an active, expiring permit coverage or MODIFICATION to modify an active permit coverage When modifying permit coverage, indicate if the modification is increasing the amount of acreage previous covered (MODIFICATION WITH ACREAGE INCREASE) or changing the site design with no increase in acreage (MODIFICATION WITHOUT ACREAGE INCREASE). Existing Permit Coverage Number. Provide the permit number for a modification or reissuance (i.e. VAR10####). 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 named as the operator, that person (or a representative of) must sign the certification in Section VI. An operator can 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 (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 (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 (MS4s), 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. 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. C. 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 allow the operator to pay by credit card and receive permit coverage approval letters immediately upon approval. Section II. Construction Activity Location Information. Location information related to the project site. 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 Virginia Stormwater Management Program (VSMP) authority if you have additional questions regarding site map requirements. B. Provide a descriptive project name (it is helpful to use the same naming convention as listed on the Stormwater plans), 911 street address (if available), city/county of the construction activity, 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. Construction Activity Entrance Location. Provide an address or decimal degrees coordinates and a description of the main construction entrance where the permit coverage letter will be posted. Rev 04/2019 PAGE 5 17 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 INSTRUCTIONS PLEASE DO NOT PRINT OR SUBMIT Section III. Offsite 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. If requesting permit coverage for offsite activities, please complete this section. List additional offsite areas to be included under this permit coverage on a separate page. Offsite areas not included on this registration will need to obtain coverage under a separate VPDES permit. A. Offsite activity location information. Provide a descriptive offsite project name, 911 street address (if available) and city/county of all off -site support activities. Provide the 6-digit latitude and longitude in decimal degrees (i.e. 37.1234N,-77.1234W). Please note that off -site activities not covered under this permit may require separate permit coverage. B. Offsite activity entrance location. Provide an address or decimal degrees coordinates and a description of the main construction entrance. Section IV. Site Information. A. 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). B. 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). C. 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. D. 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 project (i.e. Commercial — one new office building and associated parking and utilities; Transportation — Roads, sidewalks and utilities; Agricultural — 3 Poultry Houses, etc.). E. 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. F. This construction activity is part of a 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 9VAC25-870-10. Definitions. Le. a subdivision, commercial development, business park, etc. G. 6th Order Hydrologic Unit Code (HUC) and associated Receiving Water Name(s). Provide all 6th order HUCs and receiving waters for the site and offsite areas 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: DEQ's VEGIS Mapping Application • Instructions for utilizing DEQ's VEGIS application link: CGP-GIS HUC Instructions Rev 04/2019 PAGE 6 17 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 INSTRUCTIONS PLEASE DO NOT PRINT OR SUBMIT Section V. 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 IV. A. has been submitted to the Virginia Erosion and Sediment Control Program (VESCP) 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. • AS&S Entity Form link: Annual Standards and Specifications Entity Information Form Section VI. 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 (ii) the manager of one or more manufacturing, production, or operating facilities, provided the manager is authorized to make management decisions that govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long-term compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for 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 for the overall operations of a principal geographic unit of the agency. Section VII. Submittal Instructions. Submit this form to the VSMP Authority that has jurisdiction for your construction activity. The VSMP Authority may be 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 to include their mailing address. Who is the VSMP Authority for my project? 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. DEQ'S CONSTRUCTION GENERAL PERMIT WEBSITE http://www.deg.virginia.gov/Programs/Water/StormwaterManagement/VSMPPermits/ConstructionGeneraIPermit.aspx Rev 04/2019 PAGE 7 17 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.) Cale Elementary School Safe Routes to School (SRTS) project will provide the infrastructure necessary to facilitate a safe means of access from adjacent neighborhoods to the school. Pedestrians using the existing asphalt path on the eastern side of Avon Street Extended, will use a new mid -block crosswalk near the southern side of the school's campus to reach the school. This mid -block crossing will include a raised concrete median and various safety measures to alert drivers that pedestrians are present within the crossing. These safety measures will include high visibility crosswalk markings, traffic signage, and Rectangular Rapid Flashing Beacons (RRFB). The work associated with this mid -block crossing will include but not limited to the removal and relocation of existing features, grading, drainage infrastructure, accessible ramps, curb and gutter, pavement markings, traffic signage and signals, guardrail, and asphalt pavement. From this new mid -block crossing a new non-ADA compliant sidewalk will be constructed along the southern side of the school's campus to connect with the front of the school. The work associated with this non-ADA compliant sidewalk will included by not limited to removal and relocation of existing features, vegetation clearing, topsoil striping, excavation, concrete sidewalk, concrete curb, concrete flume, and pavement markings. An ADA compliant sidewalk route will be from the mid -block crossing along Avon Street then along the school's main entrance to the front of the school. There are portions of the existing sidewalk which is not ADA compliant and will be replaced. The work associated with this ADA compliant sidewalk will included by not limited to removal of existing features, topsoil striping, excavation, concrete sidewalk, concrete curb, concrete curb and gutter, accessible ramps, and pavement markings. Another ADA compliant sidewalk will connect to a future sidewalk at the school's northern access and traverse along the northern side of the school's campus to existing sidewalk along the front of the school. With this new sidewalk there will be the construction of nine parallel parking spaces adjacent to the new sidewalk to help with the school's parking deficiency. The work associated with this ADA compliant sidewalk will included by not limited to removal and relocation of existing features, topsoil striping, excavation, drainage infrastructure, bioretention basin, concrete sidewalk, concrete curb, concrete curb and gutter, accessible ramps, and pavement markings. The project will be constructed during the summer months of 2020, when school is not in session. This will eliminate safety concerns associated with construction activities, school children, and increased school traffic. The project will be built in one phase. The anticipated sequence of construction is as follows: 1. The Contractor shall obtain all necessary permits and approvals. 2. The Contractor shall provide the County with a 48-hour notice prior to conducting an Erosion and Sediment Control Pre -Construction Meeting. 3. The Contractor shall install inlet protection on existing inlets and silt fence in areas down gradient of areas planned for disturbance. 4. The Contractor shall implement temporary traffic control measures as shown on the Transportation Management Plan. 5. The Contractor shall clear vegetation in areas planned for construction. 6. The Contractor shall strip topsoil prior to excavation and stockpile in locations designated on the plans along with adequate erosion and sediment control measures. 7. The Contractor shall remove item designated for removal to allow for the installation of new work. 8. The Contractor shall excavate areas for improvements while sequencing so that improvements can be installed and the area stabilized shortly thereafter. 9. The Contractor shall install new drainage infrastructure along with sediment control devices. 10. The Contractor shall install curb, curb and gutter, asphalt paving, and sidewalk. 11. The Contractor shall install bioretention basin and implement measures to protect from sedimentation until stabilization of up gradient areas. 12. The Contractor shall stabilize remaining distrubed areas with permanent seeding and install plantings. 13. The Contractor shall maintain ESC measures throughout construction. 14. The Contractor shall schedule a final inspection upon stabilization of site. 15. The Contractor shall removal of ESC measures as the last stage of construction. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County 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 2 / / / / / / / / / / / ' O / / Q / / / / / / / / O r I O L2 MATCH LINE - SEE SHEET C6.1 � I I I I I I 1I., '� � I I I I I I T K , -\ Z , E E ---- ` I 12'i T-R E E f I w I I I I� °J c\ \\ APPROX. LOC. 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PR -- __ - s - -- �� L0� G ' �+ -- i 5" TREE SF CONTRACTOR SHALL O I I PROTECT TREE DURING `?s% '' MU PS TO - k// Ov CONSTRUCTION / it W I / M U P S TO I `, v O , SF 572 \ I I i �� I ' a \ x LLI / I / / \ i O I \ I I I \ I I I \ I \ r v \ II I O ` + \ Q M ` O I I � \ � I 1 0 SF I \ I v II I 11 \ I I \ , I \ , 1 / I 1 O 1 I \ I J 1 v I O\ _j \\ 0 \ w � o ` Iu� I O v \\ I w I I U II II I z 'I \ lO I II I I I I I I I I I I I I ' I � I I I I I / I I \ I EROSION CONTROL LEGEND TITLE KEY SYMBOL STD. & SPEC. QUANTITY NUMBER LIMITS OF DISTURBANCE —LOD— 0.51 ACRES SILT FENCE SF — SF — EC-5* 402 LF TREE PROTECTION TP — TP — VDOT 507 100 LF INLET PROTECTION IP EC-6* 3 EA. TOPSOILING TO 3.30** AS NEEDED TEMPORARY SEEDING TS 3.31 ** AS NEEDED PERMANENT SEEDING PS 3.32** AS NEEDED MULCHING MU 3.35** AS NEEDED AVIT A. MORTON THOMAS AND ASSOCIATES, INC. CONSULTING ENGINEERS 100 GATEWAY CENTRE PARKWAY, SUITE 200 RICHMOND, VA 23235 PHONE (804) 276-6231 EMAIL: AMT1@AMTENGINEERING.COM CONSULTANTS CALE ELEMENTARY SCHOOL SAFE ROUTES TO SCHOOL (SRTS) 1757 AVON STREET EXT CHARLOTTESVILLE, VA 22902 LOCALLY ADMINISTERED PROJ. STATE PROJ. # EN18-002-974, P101, C501 UPC #113508 MARK DATE DESCRIPTION 100% SUBMITTAL PROJECT NO: 17-0013.005 SCALE: 1 "=10' DESIGNED BY: CR DRAWN BY: MH CHECKED BY: EC SHEET TITLE EROSION & SEDIMENT CONTROL PLAN *VIRGINIA DEPTARTMENT OF TRANSPORTATION STANDARD **VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK STD. & SPEC. 0 10, SCALE: 1 "=10' 20' C600 !!!9 SHEET 16 OF 28 \ I � � 2 I \ Q 0 Ld \\-N ) Z ICJ 03 J -5\0 m / Y / \ I Ld W \ I N I W i C6-00i O U) �Co cs, � u LOD \ A TREE0 10 TREE v \ MU PS TO a�=' 00 co CA I / \ W / __ - C 00 0 ------------- � 1 V I SF _ I\ \ / / / / ---- \ I- j I' Do I I / �! I I \ I I I I I \ I III I I \ I I I II I I \ r I I / i \\ <\'112„ WILLOW \\\ I ;-- / I I I I I \ \\ FT-1 I L D \ I I I I 0 SF ----- 00 I I II I II II I II II II it II I I I \I \ I\ \ \ \I \\1 I I I \ \ CD I I I \ \ \ 1 I I I I \ \ \ 1 ? I I I/ 0 L SF I \ I I I \ \ FT1 \ 12 TREE <CD \ \ 01 FITI l \ Y \ 0\ �"_ TREE \ \ a \ \ < J 2" TR EFl-i 1 \ _ I I I y\ I I \\ I I X I r I I I I I \ I I I I I I I I I \ \ \ v SF U I II I I I I I I \ � )' I I I I '✓' FT1 ' LOD u�I \; MATCH LINE - SEE SHEET C6.0 007 I I I APPROX. i LOC. (DATUR) I I APPROX. EOC.� (DATUR) I I I I I o II � I N I I o _ m o \ 00 z W I � w II � Q W W z I I � I � W I Q II � II Q APPROX. EOC4 (DATUR) \ O N \ X W EROSION CONTROL LEGEND TITLE KEY SYMBOL STD. & SPEC. UANTITY NUMBER LIMITS OF DISTURBANCE —LOD— 0.51 ACRES SILT FENCE SF — SF — EC-5* 402 LF TREE PROTECTION TP — TP — VDOT 507 100 LF INLET PROTECTION IP EC-6* 3 EA. TOPSOILING TO 3.30** AS NEEDED TEMPORARY SEEDING TS 3.31 ** AS NEEDED PERMANENT SEEDING PS 3.32** AS NEEDED MULCHING MU 3.35** AS NEEDED *VIRGINIA DEPTARTMENT OF TRANSPORTATION STANDARD **VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK STD. & SPEC. APPROX. E\C. (DATUR) a 9 U) N Cb N I III _ � II � III O n I Z� N N cn n d N Z m w W � Z Q LLI W LLI u W Q W u� W >_ z co Qf Q LLI \ Q w Q o u Q _ 0 V)c\I N O W Z \ w cn V) I fo N N V N V) I \ I \ \ II o \(Am II \ I \ I I \\ I I I \ I C� w �J wQ � 3: o LLI zo ou� 0 10, 20' SCALE: 1 "=10' AVIT A. MORTON THOMAS AND ASSOCIATES, INC. CONSULTING ENGINEERS 100 GATEWAY CENTRE PARKWAY, SUITE 200 RICHMOND, VA 23235 PHONE (804) 276-6231 EMAIL: AMT1@AMTENGINEERING.COM CONSULTANTS oV -Al,& roll � AI - �UVkilf O AD J� Gt� CALE ELEMENTARY SCHOOL SAFE ROUTES TO SCHOOL (SRTS) 1757 AVON STREET EXT CHARLOTTESVILLE, VA 22902 LOCALLY ADMINISTERED PROJ. STATE PROJ. # EN18-002-974, P101, C501 UPC #113508 MARK DATE DESCRIPTION WPO SUBMITTAL PROJECT NO: 17-0013.005 SCALE: 1 "=10' DESIGNED BY: CR DRAWN BY: MH CHECKED BY: EC SHEET TITLE EROSION & SEDIMENT CONTROL PLAN ■ SHEET 17 OF 20 / I 1 tl 1 1 1 U1► I � / I I 11 ► a ► �1 II `� 1 I � 1 \ 1 ► II \� (o ► \ ► ► ► LO o ' ♦ , 010 , ' MU PS TO _-- 9 AUG, 9 L2019 EST PIT TRV 1 > 48" DEPTH A\\ \EE LINE - s EROSION CONTROL LEGEND TITLE KEY SYMBOL STD. & SPEC. QUANTITY NUMBER LIMITS OF DISTURBANCE —LOD— 0.51 ACRES SILT FENCE SF — SF — EC-5* 402 LF TREE PROTECTION TP — TP — VDOT 507 100 LF INLET PROTECTION IP EC-6* 3 EA. TOPSOILING S 3.30** AS NEEDED TEMPORARY SEEDING s 3.31 ** AS NEEDED PERMANENT SEEDING S 3.32** AS NEEDED MULCHING EU 3.35** AS NEEDED SF ° 8\ \ s9�, \ *VIRGINIA DEPTARTMENT OF TRANSPORTATION STANDARD QQ, ° ,o ,\ ,\ \ ,\ ',\\---_593-_ \ \ **VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK STD. &SPEC. 590 \ \ 00 LOD 00 00 -- - \ --_ MU PS TO - ---__ \ \ `�'s \ -- l0 \ --- - ----- --- \ -\\ ------ p°° oo° \ Go',-- I P S8 LOD - _ \ \ s94 _- —5,95 SL� 589 s 90- \ 9 1 s92 ---__------------ ---------- _ LOD LOD- - _ - LO 00 I MU PS TO I --LOD _ L06 i --- 589 ---_ � --- 9 6 , __-- 1707 1 ► , / ♦\ ► ; X -- 01 CIOr----------fl01- 001 - aOI - ao� ao ao� > 07 \ a01 C7 71 5 0 Li rTl L0b­,-� - ♦` O ♦� , o m 00 ` �► `off 8g ` S8) - T - - - ` I ►► � ` `. 00 1 cn STOCKPILE/LAYDOV1 ♦♦ --- \ AREA m ► `;' \\ ►► 8 ^ \ \ SI= o _ m 1 � o � O � 2„ \EE ♦ - --587-- / ;" I _ / ` , 8" TREE r 8 TREE 9 9 O s8 - ---- MU PS TO I ------ , 0 SF O \\ Q 5g5 / \ I p SF _ � �\ � _ \ ii I \ c\ , I l O REFER TO SHEET C5.2 FOR DETAILS ASSOCIATED s�, I v ' WITH BIORETENTION BASIN AND GRAVEL DIAPHRAGM s I E p \ ----- h -- w r \s8 0 z /' O O St Y I cp z ------------- `� I �c5l \ I N I \ 0 TREE i TREE \; I 24' FREE -- 8CO EE NEEDLE i I _ 8", TREIi ' I I � I I I I I I I I I \ I I I I \ I I I I 12" WILLOW - II I ( , I I I , ' I I ' I O I / MU PS TO 61 I I l0) N rn/ I ' 0 / 00 I I / / 00 IP \ O Lo J'_/ / 13 0/ TREE MATCH LINE - SEE ABOVE / / / / / I / / / / / r O lo�) L00000OL11 0 10, 20' SCALE: 1 "=10' AVIT A. MORTON THOMAS AND ASSOCIATES, INC. CONSULTING ENGINEERS 100 GATEWAY CENTRE PARKWAY, SUITE 200 RICHMOND, VA 23235 PHONE (804) 276-6231 EMAIL: AMT1@AMTENGINEERING.COM CONSULTANTS �y oV ALeF o � Ililf 9�� T CALE ELEMENTARY SCHOOL SAFE ROUTES TO SCHOOL (SRTS) 1757 AVON STREET EXT CHARLOTTESVILLE, VA 22902 LOCALLY ADMINISTERED PROJ. STATE PROJ. # EN18-002-974, P101, C501 UPC #113508 MARK DATE DESCRIPTION WPO SUBMITTAL PROJECT NO: 17-0013.005 SCALE: 1 "=10' DESIGNED BY: CR DRAWN BY: MH CHECKED BY: EC SHEET TITLE EROSION & SEDIMENT CONTROL PLAN ral f; "Nowtv %of 0 2 SHEET 18 OF 20 SEE NOTE 2 SEE NOTE 1 EOTEXTILE F� G� I ROCK CHECK DAM (SEE NOTE 5) INLET PROTECTION DIRECTIONAL FLOW WITH CONCRETE GUTTER (TYPE A) -2 POSTS AT EACH CORNER A ALL STAKES SHALL BED PLACED 24" O.C. MAX. ON EACH SIDE OF THE SEDIMENT RETENTION ROLL 4' MIN. FOLD FABRIC UNDER TOP RAIL 2" MIN. NAIL OR SCREW TOP RAIL TO POSTS u 24" MINIMUM OVERLAP N III 24" MIN. EC-6 16 MIN. 18" MAX. RETENTION ROLL WOOD STAKE MUM 18" DIAMETER IN 2" X 2" T 6" MIN. MIN. (SEE NOTE 8) 12" MIN. FABRIC p EMBEDMENT ,%IMENT II 24" MIN. (TYP.) -SILT FENCE GEOTEXTILE SECTION A -A POSTS 2'-6" (SEE NOTE 6) SECTION B-B MAX. SPACING INLET PROTECTION MULTIDIRECTIONAL FLOW INLET PROTECTION MULTIDIRECTIONAL FLOW WITHOUT CONCRETE GUTTER USING SEDIMENT RETENTION ROLL (TYPE A) (TYPE A) NOTES 1. POSTS AND TOP RAIL SHALL BE A NOMINAL 2" X 4" NO. 2 SOUTHERN PINE, 9. SEDIMENT SHALL BE REMOVED FROM INLET PROTECTION WHEN IT AND POSTS SHALL BE DRIVEN 24" MINIMUM IN THE GROUND. HAS ACCUMULATED TO ONE- HALF THE EXPOSED HEIGHT OF THE 2. END OF FILTER BARRIER TO BE EMBEDDED INTO AGGREGATE. STRUCTURE AND PAID FOR AS SEDIMENT REMOVAL PER CUBIC YARD. 3. IF A DROP INLET IS LOCATED IN A SAG IN THE DITCH GRADE, A CHECK DAM 10. STACKING SEDIMENT RETENTION ROLLS TO MEET THE REQUIRED INLET PROTECTION HEIGHT IS NOT PERMITTED. IS REQUIRED FOR EACH SIDE OF THE INLET THAT RECEIVES DITCH FLOW. 4. WHERE DRAINAGE AREAS EXCEED ONE ACRE OR DITCH GRADE EXCEEDS 3X, 11. SEDIMENT RETENTION ROLLS SHALL BE EMBEDDED INTO THE DITCH 2" EXCEPT WHEN PLACED OVER STANDARD EC-2 OR A TEMPORARY SEDIMENT FOREBAY SHALL BE INSTALLED IN ACCORDANCE EC-3 LINED DITCH. WITH THE EC-4 STANDARD. 5. WHEN REQUIRED SEE STANDARD EC-4 FOR DETAILS OF ROCK CHECK DAM 12. SEDIMENT RETENTION ROLLS AND STAKES USED FOR INLET PROTECTION APPLICATIONS SHALL BE REMOVED AFTER STABILIZATION IS COMPLETE. AND SEDIMENT FORBAY. 6. SILT FENCE GEOTEXTILE IN ACCORDANCE WITH SECTION 245 OF THE ROAD 13. GEOTEXTILE PRODUCTS DESIGNED TO BE INSERTED INTO OR ANCHORED AND BRIDGE SPECIFICATIONS. TO THE TOP OF GRATE INLETS, AND ARE FOUND ON VDOT'S EC-6 7. ONLY SEDIMENT RETENTION ROLL PRODUCTS WITH A MINIMUM 18" APPROVED PRODUCT LIST, MAY BE SUBSTITUTED FOR THE DROP INLET DIAMETER LISTED ON THE VDOT APPROVED PRODUCTS LIST MAY PROTECTION DEVICES DETAILED IN THIS STANDARD. BE USED FOR TYPE A INLET PROTECTION. 8. ALL STAKES SHALL BE DRIVEN 24" MIN. INTO THE GROUND AND SHALL I P EXTEND 6" ABOVE THE SEDIMENT RETENTION ROLL. WOODEN STAKES SHALL BE OAK AND HAVE NOMINAL DIMENSIONS OF 2" BY 2". STEEL STAKES SHALL HAVE A MINIMUM WEIGHT OF 1.33 POUNDS PER LINEAR FOOT. INLET PROTECTION (TYPE A), ITEM CODE 27451 EACH SPECIFICATION A COPY OF THE ORIGINAL SEALED AND SIGNED DRAWING IS ON FILE IN THE CENTRAL OFFICE. XVD❑T REFERENCE INLET PROTECTION ROAD AND BRIDGE STANDARDS 107 245 A) 242 303 (TYPE REVISION DATE SHEET 1 OF 3 244 VIRGINIA DEPARTMENT OF TRANSPORTATION 04/19 113.09 TABLE 3.35-A ORGANIC MULCH MATERIALS AND APPLICATION RATES RATES: MULCHES: NOTES: per Acre Per 1000 sq. ft. Straw or Hay A - 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 15001bs. winter cover or during hot, dry periods.* Apply as slurry. Corn Stalks 4 - 6 tons 185 - 275 lbs. Cut or shredded in 4-6" lengths. Air-dried. Do not use in fine turf areas. Apply with mulch blower or by hand. Wood Chips 4 - 6 tons 185 - 275 lbs. Free of coarse matter. Air- dried. Treat with 12 lbs nitrogen per ton. Do not use in fine turf areas. Apply with mulch blower, chip handler, or by hand. Bark Chips 50 - 70 cu. 1-2 cu. yds. Free of coarse matter. Air - or yds. dried. Do not use in fine Shredded turf areas. Apply with Bark mulch blower, chip handler, or by hand. * When fiber mulch is the only available mulch during periods when straw should be used, apply at a minimum rate of 2000 lbs./ac. or 45 lbs./1000 sq. ft. Source: Va. DSWC S = w A SILT = z FENCE CE J W ' TEMPORARY U. UJ SILT FENCE TOE OF FILL TYPE A OR B A SHEET FLOW (SEE NOTE 8) SECTION A -A TYPICAL DETAIL FOR TEMPORARY SILT FENCE AT TOE OF FILL FILL TRENCH TO ANCHOR m BOTTOM OF GEOTEXTILE III �GEOTEX71LE FABRIC FABRIC, COMPACT I,l THOROUGHLY 6" MIN. EMBED GEOTEXTILE FABRIC IN TRENCH A MIN. OF 6" HORIZONTALLY AND 6" 114- VERTICALLY. 6" MIN. (SEE NOTES 4 AND 5) GEOTEXTILE EMBEDMENT DETAIL (SEE NOTE 3) GEOTE SH WOODEN FENC STEEL FENCE EC-5 NOTES 1. TYPE A SILT FENCE WILL HAVE WOODEN POSTS AND IS LIMITED TO FILL HEIGHTS OF 20 FEET OR LESS. TYPE B SILT FENCE WILL HAVE STEEL POSTS AND MUST BE USED WHERE THE FILL HEIGHT EXCEEDS 20 FEET. 2. WOODEN POSTS SHALL BE OAK AND HAVE NOMINAL DIMENSIONS OF 2" BY 2". STEEL POSTS SHALL HAVE A MINIMUM WEIGHT OF 1.25 POUNDS PER LINEAR FOOT. 3. ALL POSTS SHALL BE DRIVEN 24" MIN. INTO THE GROUND AND SHALL EXTEND 6" ABOVE THE FILTER FABRIC. 4. GEOTEXTILE FABRIC SHALL BE EMBEDDED 12" INTO THE GROUND (6" VERTICALLY AND 6" HORIZONTALLY ALONG THE BOTTOM OF TRENCH) AS SHOWN IN DETAILS. 5, SLICING IS AN APPROVED ALTERNATIVE TO TRENCHING FOR ANCHORING THE GEOTEXTILE FABRIC INTO THE GROUND. SLICING SHALL BE ACCOMPLISHED IN ACCORDANCE WITH SECTION 303 OF THE ROAD AND BRIDGE SPECIFICATIONS. 6. WHEN TWO SEPARATE SECTIONS OF GEOTEXTILE FABRIC ADJOIN EACH OTHER, THEY SHALL OVERLAP BY 6" AND BE DOUBLE FOLDED. 7. GEOTEXTILE FABRIC SHALL BE FASTENED SECURELY TO THE POSTS AT BOTH THE TOP AND VERTICAL MIDPOINT OF THE GEOTEXTILE FABRIC. B. WHEN THE DISTANCE FROM THE TOE OF THE FILL TO THE SILT FENCE IS NOT PROVIDED IN THE PLANS A MINIMUM OF 5 FEET WILL BE USED. 9. MATERIALS FOR ALL SILT FENCE SHALL CONFORM TO THE REQUIREMENTS OF SECTION 242 OF THE VDOT ROAD & BRIDGE SPECIFICATIONS. 10. THE GEOTEXTILE FABRIC FOR SILT FENCE SHALL HAVE A MINIMUM GRAB TENSILE STRENGTH OF 125 LBS/FT AND BE FROM THE VDOT MATERIALS APPROVED LIST • 63. 4' MAX. SPECIFICATION A COPY OF THE ORIGINAL SEALED AND SIGNED DRAWING 15 ON FILE IN THE CENTRAL OFFICE. XVD❑T REFERENCE TEMPORARY SILT BARRIERS ROAD AND BRIDGE STANDARDS 107 242 SILT FENCE (TYPE A & B) REVISION DATE SHEET 1 OF 2 245 303 VIRGINIA DEPARTMENT OF TRANSPORTATION 04/19 113.07 TABLE 3.31-B (Revised June 2003) TEMPORARY SEEDING SPECIFICATIONS QUICK REFERENCE FOR ALL REGIONS SEED APPLICATION DATES SPECIES APPLICATION RATES Sept. 1 - Feb. 15 50/50 Mix of Annual Ryegrass (lolium multi- florum) & Cereal (Winter) Rye (Secale cereale) 50 -100 (lbs/acre) Feb. 16 - Apr. 30 Annual Ryegrass (lolium multi-florum) 60 - 100 (lbs/acre) May 1 - Aug. 31 German Millet 50 (lbs/acre) FERTILIZER & LIME • Apply 10-10-10 fertilizer at a rate of 450 lbs. / acre (or 10 lbs. / 1,000 sq. ft.) • Apply Pulverized Agricultural Limestone at a rate of 2 tons/acre (or 90 lbs. / 1,000 sq. ft.) NOTE: 1 - A soil test is necessary to determine the actual amount of lime required to adjust the soil pH of site. 2 - Incorporate the lime and fertilizer into the top 4 - 6 inches of the soil by disking or by other means. 3 - When applying Slowly Available Nitrogen, use rates available in Erosion & Sediment Control Techr # 4, 2003 Nutrient Management for Development Sites at http://www.dcr.state.va.us/sw/e&s.htm#pubs a TABLE 3.32-D (Revised June 2003) PERMANENT SEEDING SPECIFICATIONS FOR PIEDMONT AREA SEED' LAND USE SPECIES APPLICATION PER ACRE Tall Fescue' 95-100% Minimum Care Lawn Perennial Ryegrass 0-5% (Commercial or Residential) Kentucky Bluegrass' 0-5% TOTAL: 175-200 lbs. High -Maintenance Lawn Tall Fescue' TOTAL: 200-250 lbs. Tall Fescue' 128 lbs. General Slope (3:1 or less) Red Top Grass or Creeping Red Fescue 2 lbs. Seasonal Nurse Cropz 20 lbs. TOTAL: 150 lbs. Tall Fescue' 108 lbs. Low -Maintenance Slope Red Top Grass or Creeping Red Fescue 2 lbs. (Steeper than 3:1) Seasonal Nurse Cropz 20 lbs. Crownvetch3 20 1 bs. TOTAL: 150 lbs. 1 - When selecting varieties of turfgrass, use the Virginia Crop Improvement Association (VCIA) recommended turfgrass variety list. Quality seed will bear a label indicating that they are approved by VCIA. A current turfgrass variety list is available at the local County Extension office or through VCIA at 804-746-4884 or at http://sudan.cses.vt.edu/htmllTurf/turf/publications/iDublications2. html 2 - Use seasonal nurse crop in accordance with seeding dates as stated below: February 161" - April ............................... Annual Rye May 1" - August 15'" ........................... Foxtail Millet August 161" - October ...... Annual Rye November - February 15'" ....................... Winter Rye 3 - Substitute Sericea Iespedeza for Crownvetch east of Farmville, VA (May through September use hulled seed, all other periods, use unhulled Sericea). If Flatpea is used, increase rate to 30 lbs./acre. If Weeping Lovegrass is used, include in any slope or low maintenance mixture during warmer seeding periods, increase to 30 -40 FERTILIZER & LIME • Apply 10-20-10 fertilizer at a rate of 500 lbs. / acre (or 12 lbs. / 1,000 sq. ft.) • Apply Pulverized Agricultural Limestone at a rate of 2 tons/acre (or 90 lbs. / 1,000 sq. ft.) NOTE: - A soil test is necessary to determine the actual amount of lime required to adjust the soil pH of site. - Incorporate the lime and fertilizer into the top 4 - 6 inches of the soil by disking or by other means. - When applying Slowly Available Nitrogen, use rates available in Erosion & Sediment Control Technical Bulletin # 4, 2003 Nutrient Management for Development Sites at http://www.dcr.state.va.us/sw/e&s.htm#pubs AVIT A. MORTON THOMAS AND ASSOCIATES, INC. CONSULTING ENGINEERS 100 GATEWAY CENTRE PARKWAY, SUITE 200 RICHMOND, VA 23235 PHONE (804) 276-6231 EMAIL: AMT1@AMTENGINEERING.COM 1 CONSULTANTS 1 SANE COLEMAN ic. No. 053234 f a2f V�RGIN�P CALE ELEMENTARY SCHOOL SAFE ROUTES TO SCHOOL (SRTS) 1757 AVON STREET EXT CHARLOTTESVILLE, VA 22902 LOCALLY ADMINISTERED PROJ. STATE PROJ. # EN18-002-974, P101, C501 UPC #113508 1 MARK I DATE I DESCRIPTION 1 WPO SUBMITTAL PROJECT NO: 17-0013.005 SCALE: N.T.S. DESIGNED BY: CR DRAWN BY: MH CHECKED BY: EC SHEET TITLE EROSION & SEDIMENT CONTROL DETAILS C603 SHEET 19 OF 20 GENERAL NOTES: 7. THE CONTRACTOR SHALL REMOVE ITEMS DESIGNATED TO BE REMOVED TO ALLOW FOR THE 1. ALL WILL BE CONSTRUCTED IN ACCORDANCE WITH THE VIRGINIA DEPARTMENT OF INSTALLATION OF NEW WORK. TRANSPORTATION 2016 ROAD AND BRIDGE SPECIFICATIONS. 8. THE CONTRACTOR SHALL EXCAVATE AREAS FOR IMPROVEMENTS WHILE SEQUENCING SO THAT 2. CARE WILL BE TAKEN TO PROTECT FROM DAMAGES ALL EXISTING SURFACES, IMPROVEMENTS CAN BE INSTALLED AND THE AREA STABILIZED SHORTLY THEREAFTER. STRUCTURES, AND IMPROVEMENTS ADJACENT TO THE WORK. ANY DAMAGE TO SUCH ITEMS, AS A RESULT OF THE WORK, WILL BE RESTORED TO THEIR ORIGINAL CONDITION g THE CONTRACTOR SHALL INSTALL NEW DRAINAGE INFRASTRUCTURE ALONG WITH SEDIMENT AT NO ADDITIONAL COST TO ALBEMARLE COUNTY. CONTROL DEVICES. 3. THE WORK WILL BE PERFORMED IN A MANNER THAT WILL ENSURE THE LEAST 10. THE CONTRACTOR SHALL INSTALL CURB, CURB AND GUTTER, ASPHALT PAVING, AND SIDEWALK. PRACTICABLE OBSTRUCTION TO TRAFFIC AND IS CONSISTENT WITH ESTABLISHED SAFETY PROCEDURES. THERE WILL BE MAINTENANCE OF TRAFFIC THROUGHOUT THE 11 THE CONTRACTOR SHALL INSTALL BIORETENTION BASIN AND IMPLEMENT MEASURES TO PROTECT CONSTRUCTION DURATION. FROM SEDIMENTATION UNTIL STABILIZATION OF UP GRADIENT AREAS. 4. ACCESS TO ALL PRIVATE DRIVEWAYS WILL BE MAINTAINED AT ALL TIMES. 12. THE CONTRACTOR SHALL STABILIZE REMAINING DISTURBED AREAS WITH PERMANENT SEEDING AND INSTALL PLANTINGS. 5. THE COUNTY WILL BE NOTIFIED IMMEDIATELY UPON ENCOUNTERING ANY HAZARDOUS OR REGULATED MATERIALS DURING THE COURSE OF WORK. 13 THE CONTRACTOR SHALL MAINTAIN ESC MEASURES THROUGHOUT CONSTRUCTION. 6. THE CONTRACTOR WILL IMMEDIATELY REMOVE, TRANSPORT OFF -SITE, AND LEGALLY 14. ALL ESC MEASURES SHALL BE CHECKED REGULARLY FOR SEDIMENT BUILD UP THAT WILL DISPOSE OF ANY AND ALL EXCAVATED/DELETERIOUS MATERIALS. PREVENT PROPER DRAINAGE. SEDIMENT REMOVAL SHALL BE DISPOSED IN ACCORDANCE WITH PERMIT CONDITIONS. 7. A GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION 15. ADDITIONAL ESC MEASURES SHALL BE INSTALLED AS REQUIRED BY THE COUNTY. ACTIVITIES WILL BE OBTAINED PRIOR TO LAND DISTURBING ACTIVITIES. 8. THE LOCATION OF SUBSURFACE UTILITIES SHOWN ON THE PLANS ARE APPROXIMATE AND 16. THE CONTRACTOR SHALL SCHEDULE A FINAL INSPECTION UPON STABILIZATION OF THE SITE. FOR INFORMATION AND GUIDANCE ONLY. PORTIONS OF THESE UTILITIES ARE BASED UPON 17. THE CONTRACTOR SHALL REMOVE REMAINING ESC MEASURES AS THE LAST STAGE OF MISS UTILITY MARKINGS OR RECORD DRAWINGS AND THEREFORE THERE IS NO GUARANTEE CONSTRUCTION. TO THE ACCURACY OF LOCATIONS, AS SHOWN ON THE PLANS. THE CONTRACTOR WILL FIELD LOCATE ALL UTILITIES PRIOR TO ANY CONSTRUCTION. EROSION & SEDIMENT CONTROL MAINTENANCE NOTES 9. THE CONTRACTOR WILL PROTECT ANY AND ALL EXISTING UTILITIES FROM DAMAGE. THE CONTRACTOR WILL REPAIR AND RE-ESTABLISH ANY AND ALL UTILITIES DISRUPTED ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE INSPECTED BY QUALIFIED PERSONNEL: DURING THE EXCAVATION/CONSTRUCTION. (1) AT LEAST ONCE EVERY FIVE (5) BUSINESS DAYS, OR (2) AT LEAST ONCE EVERY TEN (10) BUSINESS DAYS AND NO LATER THAN 24 HOURS FOLLOWING A MEASURABLE STORM EVENT. IN THE 10. AN ADVANCE NOTIFICATION OF UTILITY SERVICE INTERRUPTION WILL BE PROVIDED 14 EVENT THAT A MEASURABLE STORM EVENT OCCURS WHEN THERE ARE MORE THAN 24 HOURS DAYS IN ADVANCE TO ALBEMARLE COUNTY, THE AFFECTED UTILITY OWNER, AND THOSE BETWEEN BUSINESS DAYS, THE INSPECTION SHALL BE CONDUCTED ON THE NEXT BUSINEES DAY. AFFECTED BY THE INTERRUPTION IN SERVICE. 1. EROSION AND SEDIMENT CONTROL WILL BE CHECKED REGULARLY FOR UNDERMINING OR 11. STORM PIPES AND DROP INLETS WITHIN THE PROJECT LIMITS WILL BE CLEANED OF DEBRIS AND DETERIORATION AND BUILDUP OR CLOGGING WITH SEDIMENT. CORRECTIVE ACTION WILL BE TAKEN ERODED MATERIALS, AS NECESSARY PRIOR TO FINAL ACCEPTANCE. IMMEDIATELY. 12. THE CONTRACTOR WILL CONSTRUCT AND MAINTAIN, THROUGHOUT THE PROJECT, ALL EROSION AND 2. FREQUENT INSPECTIONS AND CLEANING OF MUD AND DEBRIS FOUND OUTSIDE OF THE LIMITS OF SEDIMENT CONTROL MEASURES, AS SHOWN ON THE CONTRACT DRAWINGS. ALL CONTROL DISTURBANCE IS REQUIRED, ALONG WITH ANY OTHER REMEDIES REQUIRED BY THE TOWN. ANY METHODS AND DETAILS SHOWN COMPLY WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL MUD, SEDIMENT, DEBRIS, ETC. OBSERVED OUTSIDE THE LIMITS OF DISTURBANCE SHALL HANDBOOK, LATEST EDITION AND VDOT ROAD AND BRIDGE STANDARDS, LATEST EDITION.. IMMEDIATELY BE REMOVED AND DISPOSED OF IN AN APPROPRIATE MANNER. 13. TEMPORARY TRAFFIC CONTROL WILL BE IN ACCORDANCE WITH THE MUTCD, THE WORK AREA 3. ALL SEEDED AREAS SHALL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND OF GRASS IS PROTECTION MANUAL, AND THE VIRGINIA SUPPLEMENT. MAINTAINED. AREAS SHALL BE FERTILIZED AND RESEEDED AS NEEDED. TEMPORARY STABILIZATION SHALL BE USED AS REQUIRED BY THE TOWN. 14. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION WILL COMPLY WITH OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY (29 CFR PART 1926). 4. ALL TEMPORARY EROSION AND SEDIMENT MEASURES SHALL BE DISPOSED OF WITHIN THIRTY (30) DAYS AFTER FINAL SITE STABILIZATION IS ACHIEVED AND VEGETATION IS ESTABLISHED. 15. THE CONTRACTOR WILL BE RESPONSIBLE FOR ALL ON -SITE SAFETY. MINIMUM STANDARDS 16. CONTRACTOR WILL COMPLY WITH S59.1-406, ET SEW. OF THE CODE OF VIRGINIA (OVERHEAD HIGH VOLTAGE LINES SAFETY ACT). 1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL 17. THE CONTRACTOR WILL COORDINATE WITH THE UTILITY PROVIDERS ON PROVIDING THE REQUIRED STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE MEASURES FOR PROTECTION OF THE EXISTING UTILITY SERVICES DURING CONSTRUCTION, IF AT FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 14 DAYS. PERMANENT NECESSARY. STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN EROSION CONTROL NARRATIVE 1. PROJECT DESCRIPTION: • THIS PROJECT INCLUDES THE INSTALLATION OF SIDEWALK, CROSSWALK AND ALL SAFETY FEATURES REQUIRED FOR A SAFE ROUTE TO SCHOOL. 2. EXISTING SITE CONDITIONS: • THE EXISTING CONDITIONS OF THE AREA PLANNED FOR SIDEWALK IS EITHER CURRENTLY GRASSED OR EXISTING SIDEWALK. SITE ELEVATIONS ALONG THE SOUTHERN SIDEWALK RANGE FROM A HIGH OF 603 AND A LOW OF 572 AND ALONG THE NORTHERN SIDEWALK RANGES FROM 595 TO 582. 3. ADJACENT AREAS: • AREAS ADJACENT TO THE SITE INCLUDE COMMERCIAL DEVELOPMENT AND A HIGH DENSITY RESIDENTIAL DEVELOPMENT. 4. OFF -SITE AREAS: • NO OFF -SITE LAND DISTURBING ACTIVITIES ASSOCIATED WITH THIS PROJECT ARE KNOWN AT THIS TIME. ANY OFF -SITE LAND DISTURBANCE ACTIVITIES ASSOCIATED WITH THIS PROJECT WILL BE COVERED WITH A SEPARATE LAND DISTURBANCE PERMIT OBTAINED BY THE CONTRACTOR. 5. SOILS: • THE MAJORITY OF THE SOILS ON THE PROJECT ARE CLASSIFIED BY NRCS AS EITHER MYERSVILLE SILT LOAM, RAYBURN CLAY LOAM AND ORANGE SILT LOAM SOILS. THESE SOILS HAVE A MODERATE INFILTRATION RATE, A MODERATE INFILTRATION RATE AND A SLOW INFILTRATION RATE, RESPECTIVELY. 6. CRITICAL EROSION AREAS: • THERE ARE NO CRITICAL EROSION AREAS ON THIS PROJECT. 7. EROSION AND SEDIMENT CONTROL MEASURES: • THE FOLLOWING VESCH CONTROLS ARE TO BE USED INCLUDE: •• SILT FENCE PER STD. 3.05 AND VDOT EC-5 •• TREE PROTECTION PER VDOT STANDARDS •• STORM DRAIN INLET PROTECTION PER STD. 3.07 AND VDOT EC-6 •• TOPSOILING PER STD. 3.30 •• PERMANENT SEEDING PER STD. 3.32 •• MULCHING PER STD. 3.35 8. PERMANENT STABILIZATION: • ALL DISTURBED AREAS WILL RECEIVE PERMANENT SEEDING. THESE AREAS WILL BE WATERED EVERY DAY BY THE CONTRACTOR FOR THE FIRST TWO WEEKS UNTIL GERMINATION, AND THEN AS NEEDED THEREAFTER. THE CONTRACTOR WILL BE REQUIRED TO ESTABLISH AND MAINTAIN A "GOOD" STAND OF GRASS/VEGETATION BEFORE APPROVAL BY THE COUNTY. 9. STORMWATER RUN-OFF CONSIDERATIONS: • A BIORETENTION BASIN WILL BE UTILIZED TO CONTROL THE SITE'S PEAK RUNOFF RATE ASSOCIATED WITH THE NEW WORK. SEQUENCE OF CONSTRUCTION 1. THE CONTRACTOR SHALL OBTAIN ALL NECESSARY PERMITS AND APPROVALS. 2. THE CONTRACTOR SHALL COORDINATE WITH THE COUNTY'S PROJECT MANAGER FOR SCHEDULING OF THE EROSION AND SEDIMENT CONTROL PRE -CONSTRUCTION MEETING. 3. THE CONTRACTOR SHALL INSTALL INLET PROTECTION ON EXISTING INLETS AND SILT FENCE IN AREAS DOWN GRADIENT OF AREAS PLANNED FOR DISTURBANCE. 4. THE CONTRACTOR SHALL IMPLEMENT TEMPORARY TRAFFIC CONTROL MEASURES AS SHOWN ON THE TRANSPORTATION MANAGEMENT PLAN. 5. THE CONTRACTOR SHALL CLEAR VEGETATION IN AREAS PLANNED FOR CONSTRUCTION. 6. THE CONTRACTOR SHALL STRIP TOPSOIL PRIOR TO EXCAVATION AND STOCKPILE IN LOCATIONS DESIGNATED ON THE PLANS ALONG WITH ADEQUATE EROSION AND SEDIMENT CONTROL MEASURES. ONE YEAR. 2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCK PILES AND BORROW AREAS SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING MEASURES. THE APPLICANT IS RESPONSIBLE FOR THE TEMPORARY PROTECTION AND PERMANENT STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS AND SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SI TE, 3. A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMANENTLY STABILIZED. PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT IS UNIFORM, MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION. 4. SEDIMENT BASINS AND TRAPS, PERIMETER DIKES, SEDIMENT BARRIERS AND OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP IN ANY LAND -DISTURBING ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. 5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. 6. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRAP OR BASIN. A. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA AND THE TRAP SHALL ONLY CONTROL DRAINAGE AREAS LESS THAN THREE ACRES. B. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW FROM DRAINAGE AREAS GREATER THAN OR EQUAL TO THREE ACRES SHALL BE CONTROLLED BY A SEDIMENT BASIN. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT BASIN SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA. THE OUTFALL SYSTEM SHALL, AT A MINIMUM, MAINTAIN THE STRUCTURAL INTEGRITY OF THE BASIN DURING A 25-YEAR STORM OF 24-HOUR DURATION. RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL CORRESPOND TO A BARE EARTH CONDITION OR THOSE CONDITIONS EXPECTED TO EXIST WHILE THE SEDIMENT BASIN IS UTILIZED. 7. CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. SLOPES THAT ARE FOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED. 8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME OR SLOPE DRAIN STRUCTURE. 9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED. 10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT SEDIMENT -LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT. 11. BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS OR PIPES ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL. 12. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING CONSTRUCTION. NONERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS. 13. WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES MORE THAN TWICE IN ANY SIX-MONTH PERIOD, A TEMPORARY VEHICULAR STREAM CROSSING CONSTRUCTED OF NONERODIBLE MATERIAL SHALL BE PROVIDED. 14. ALL APPLICABLE FEDERAL, STATE AND LOCAL CHAPTERS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET. 15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED. 16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA: 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. GENERAL EROSION AND SEDIMENT CONTROL NOTES C. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE, OR BOTH, AND DISCHARGED IN A MANNER THAT FROM THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, THIRD EDITION, 1992. DOES NOT ADVERSELY AFFECT FLOWING STREAMS OR OFF -SITE PROPERTY. ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT D. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM MINIMIZE EROSION AND PROMOTE STABILIZATION. STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS 4VAC50-30 EROSION AND SEDIMENT CONTROL E. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THIS CHAPTER. REGULATIONS. F. APPLICABLE SAFETY CHAPTERS SHALL BE COMPLIED WITH. ES-2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND 17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC ROADS, DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PAVED OR PUBLIC ROAD ES-3: ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE SURFACE, THE ROAD SURFACE SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. FIRST STEP IN CLEARING. 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 ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED SEDIMENT IS REMOVED IN THIS MANNER. THIS PROVISION SHALL APPLY TO INDIVIDUAL ON THE SITE AT ALL TIMES. DEVELOPMENT LOTS AS WELL AS TO LARGER LAND -DISTURBING ACTIVITIES. ES-5: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL 18. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER PLAN APPROVING AUTHORITY. NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE VESCP AUTHORITY. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL ES-6: ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. 19. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE PROTECTED FROM SEDIMENT DEPOSITION, EROSION AND DAMAGE DUE TO INCREASES IN VOLUME, VELOCITY ES-7: DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING AND PEAK FLOW RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF DEVICE. 24-HOUR DURATION IN ACCORDANCE WITH THE FOLLOWING STANDARDS AND CRITERIA. STREAM RESTORATION AND RELOCATION PROJECTS THAT INCORPORATE NATURAL CHANNEL DESIGN ES-8: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND CONCEPTS ARE NOT MAN-MADE CHANNELS AND SHALL BE EXEMPT FROM ANY FLOW RATE AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS: TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. A. CONCENTRATED STORMWATER RUNOFF LEAVING A DEVELOPMENT SITE SHALL BE DISCHARGED DIRECTLY INTO AN ADEQUATE NATURAL OR MAN-MADE RECEIVING CHANNEL, PIPE OR STORM ALBEMARLE COUNTY GENERAL CONSTRUCTION NOTES FOR EROSION 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 AND SEDIMENT CONTROL PLANS SHALL BE PERFORMED. B. ADEQUACY OF ALL CHANNELS AND PIPES SHALL BE VERIFIED IN THE FOLLOWING MANNER: 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND (1) THE APPLICANT SHALL DEMONSTRATE THAT THE TOTAL DRAINAGE AREA TO THE POINT DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. OF ANALYSIS WITHIN THE CHANNEL IS ONE HUNDRED TIMES GREATER THAN THE CONTRIBUTING DRAINAGE AREA OF THE PROJECT IN QUESTION; OR 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA (2) (A) NATURAL CHANNELS SHALL BE ANALYZED BY THE USE OF A TWO-YEAR STORM TO EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 VERIFY THAT STORMWATER WILL NOT OVERTOP CHANNEL BANKS NOR CAUSE EROSION OF EROSION AND SEDIMENT CONTROL REGULATIONS. CHANNEL BED OR BANKS. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS (B) ALL PREVIOUSLY CONSTRUCTED MAN-MADE CHANNELS SHALL BE ANALYZED BY THE THE FIRST STEP IN CLEARING. 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 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE WILL NOT CAUSE EROSION OF CHANNEL BED OR BANKS; AND MAINTAINED ON THE SITE AT ALL TIMES. (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 5 PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED OR SYSTEM. ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN C. IF EXISTING NATURAL RECEIVING CHANNELS OR PREVIOUSLY CONSTRUCTED MAN-MADE TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. CHANNELS OR PIPES ARE NOT ADEQUATE, THE APPLICANT SHALL: 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION (1) IMPROVE THE CHANNELS TO A CONDITION WHERE A TEN-YEAR STORM WILL NOT CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS OVERTOP THE BANKS AND A TWO-YEAR STORM WILL NOT CAUSE EROSION TO THE DETERMINED BY THE PLAN APPROVING AUTHORITY. CHANNEL, THE BED, OR BANKS; OR 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT (2) IMPROVE THE PIPE OR PIPE SYSTEM TO A CONDITION WHERE THE TEN-YEAR STORM IS ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL CONTAINED WITHIN THE APPURTENANCES; FINAL STABILIZATION IS ACHIEVED. (3) DEVELOP A SITE DESIGN THAT WILL NOT CAUSE THE PRE -DEVELOPMENT PEAK RUNOFF 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING RATE FROM A TWO-YEAR STORM TO INCREASE WHEN RUNOFF OUTFALLS INTO A DEVICE. 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 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR (4) PROVIDE A COMBINATION OF CHANNEL IMPROVEMENT, STORMWATER DETENTION OR OTHER CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MEASURES WHICH IS SATISFACTORY TO THE VESCP AUTHORITY TO PREVENT MADE IMMEDIATELY. DOWNSTREAM EROSION. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. D. THE APPLICANT SHALL PROVIDE EVIDENCE OF PERMISSION TO MAKE THE IMPROVEMENTS. 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL E. ALL HYDROLOGIC ANALYSES SHALL BE BASED ON THE EXISTING WATERSHED CHARACTERISTICS SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND AND THE ULTIMATE DEVELOPMENT CONDITION OF THE SUBJECT PROJECT. OTHER DEBRIS. F. IF THE APPLICANT CHOOSES AN OPTION THAT INCLUDES STORMWATER DETENTION, HE SHALL 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER OBTAIN APPROVAL FROM THE VESCP OF A PLAN FOR MAINTENANCE OF THE DETENTION ZONING ORDINANCE SECTION 5.1.28. FACILITIES. THE PLAN SHALL SET FORTH THE MAINTENANCE REQUIREMENTS OF THE FACILITY AND THE PERSON RESPONSIBLE FOR PERFORMING THE MAINTENANCE. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF G. OUTFALL FROM A DETENTION FACILITY SHALL BE DISCHARGED TO A RECEIVING CHANNEL, AND THE CODE OF ALBEMARLE. 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 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL CHANNEL. BE LIMITED TO THE HOURS OF 7:OOAM TO 9:OOPM. H. ALL ON -SITE CHANNELS MUST BE VERIFIED TO BE ADEQUATE. 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAN MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, I. INCREASED VOLUMES OF SHEET FLOWS THAT MAY CAUSE EROSION OR SEDIMENTATION ON PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY ADJACENT PROPERTY SHALL BE DIVERTED TO A STABLE OUTLET, ADEQUATE CHANNEL, PIPE PUBLIC STREET BECAUSE 0 SLIDES, SINKING, OR COLLAPSE. OR PIPE SYSTEM, OR TO A DETENTION FACILITY. J. IN APPLYING THESE STORMWATER MANAGEMENT CRITERIA, INDIVIDUAL LOTS OR PARCELS IN A 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT RESIDENTIAL, COMMERCIAL OR INDUSTRIAL DEVELOPMENT SHALL NOT BE CONSIDERED TO BE TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION SEPARATE DEVELOPMENT PROJECTS. INSTEAD, THE DEVELOPMENT, AS A WHOLE, SHALL BE CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, CONSIDERED TO BE A SINGLE DEVELOPMENT PROJECT. HYDROLOGIC PARAMETERS THAT UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. REFLECT THE ULTIMATE DEVELOPMENT CONDITION SHALL BE USED IN ALL ENGINEERING CALCULATIONS. 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST K. ALL MEASURES USED TO PROTECT PROPERTIES AND WATERWAYS SHALL BE EMPLOYED IN A A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL MANNER WHICH MINIMIZES IMPACTS ON THE PHYSICAL, CHEMICAL AND BIOLOGICAL INTEGRITY TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN OF RIVERS, STREAMS AND OTHER WATERS OF THE STATE. MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 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 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS IF THE PRACTICES ARE DESIGNED TO MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS/1000SF, (1) DETAIN THE WATER QUALITY VOLUME AND TO RELEASE IT OVER 48 HOURS; (11) DETAIN INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT AND RELEASE OVER A 24-HOUR PERIOD THE EXPECTED RAINFALL RESULTING FROM THE ONE 1000LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL YEAR, 24-HOUR STORM; AND (111) REDUCE THE ALLOWABLE PEAK FLOW RATE RESULTING BE APPLIED AT 180LBS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND FROM THE 1.5, 2, AND 10-YEAR, 24-HOUR STORMS TO A LEVEL THAT IS LESS THAN OR 0-5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED EQUAL TO THE PEAK FLOW RATE FROM THE SITE ASSUMING IT WAS IN A GOOD FORESTED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONDITION, ACHIEVED THROUGH MULTIPLICATION OF THE FORESTED PEAK FLOW RATE BY A CONTROL INSPECTOR. 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 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH PROPOSED CONDITION, AND SHALL BE EXEMPT FROM ANY FLOW RATE CAPACITY AND RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS AS DEFINED IN ANY IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME REGULATIONS PROMULGATED PURSUANT TO § 62.1-44.15:54 OR 62.1-44.15:65 OF THE ACT. IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH ARE M. FOR PLANS APPROVED ON AND AFTER JULY 1, 2014, THE FLOW RATE CAPACITY AND COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED VELOCITY REQUIREMENTS OF § 62.1-44.15:52 OF THE ACT AND THIS SUBSECTION SHALL BE IMMEDIATELY. 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 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED REGULATIONS, UNLESS SUCH LAND -DISTURBING ACTIVITIES ARE IN ACCORDANCE WITH WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER 9VAC25-870-66 OF THE VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) PERMIT NEEDED, SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. REGULATIONS. N. COMPLIANCE WTH THE WATER QUANTITY MINIMUM STANDARDS SET OUT IN 9VAC25-870-66 OF THE VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) PERMIT REGULATIONS SHALL BE DEEMED TO SATISFY THE REQUIREMENTS OF MINIMUM STANDARD 19. AVIT A. MORTON THOMAS AND ASSOCIATES, INC. CONSULTING ENGINEERS 100 GATEWAY CENTRE PARKWAY, SUITE 200 RICHMOND, VA 23235 PHONE (804) 276-6231 EMAIL: AMT1@AMTENGINEERING.COM 1 CONSULTANTS 1 WNE COLEMAN ic. No. 053234 1 r3a20 nni p xL r !? Gl� CALE ELEMENTARY SCHOOL SAFE ROUTES TO SCHOOL (SRTS) 1757 AVON STREET EXT CHARLOTTESVILLE, VA 22902 LOCALLY ADMINISTERED PROJ. STATE PROJ. # EN18-002-974, P101, C501 UPC #113508 1 MARK I DATE I DESCRIPTION 1 WPO SUBMITTAL PROJECT NO: 17-0013.005 SCALE: N.T.S. DESIGNED BY: CR DRAWN BY: MH CHECKED BY: EC SHEET TITLE EROSION & SEDIMENT CONTROL NOTES C604 SHEET 20 OF 20 Section 5. Stormwater Management Plan (Provide a reduced I Ix17 copy of the latest stormwater management plan. Do not reference only.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County W- -� - \ J -�or - / i / / HYDROLOGIC SOIL J GROUP "H„ -- \ -- - —------- ----"---------- — —__---- l\ -- --------- _- �-------------- //------ ----------------------- HYDROLOGIC SOIL GROUP "C" -- , II v �_ 11 ,, II \\ III \ I� \ I I I H DROLOGIC SOIL GROUP "B" I I I I I , I — — — — — — — — — — — — — i III I / i I' I,,I II,, \----- I I I I I I I'/ / I PREDEVELOPMENT LEGEND IMPERVIOUS PREDEVELOPMENT '' I ,� ; � /' � /' MANAGED TURF I � HYDROLOGIC SOIL /---------- GROUP ------ -\ ,- B '"- "------- f --------------- — 4 ------------ — ---- HYDROLOGIC SOIL GROUP "C" -- , , , , — — — — — — ——' 15 Rc // I , I I ------- � C H DROLOGIC SOIL -- ------ / 1 GROUP „B„-------- - N --- ' ' POSTDEVELOPMENT LEGEND I I I I III iI I - I II ' I POSTDEVELOPMENT N 1, 11 t TREATED IMPERVIOUS AREA TREATED MANAGED TURF AREA UNTREATED IMPERVIOUS AREA UNTREATED MANAGED TURF AREA 0 30' SCALE: V=30' AVIT A. MORTON THOMAS AND ASSOCIATES, INC. CONSULTING ENGINEERS 100 GATEWAY CENTRE PARKWAY, SUITE 200 RICHMOND, VA 23235 PHONE (804) 276-6231 EMAIL: AMT1@AMTENGINEERING.COM CONSULTANTS of Al,& roll _ F[IUkiIfa AD J� Gt� CALE ELEMENTARY SCHOOL SAFE ROUTES TO SCHOOL (SRTS) 1757 AVON STREET EXT CHARLOTTESVILLE, VA 22902 LOCALLY ADMINISTERED PROJ. STATE PROJ. # EN18-002-974, P101, C501 UPC #113508 MARK DATE DESCRIPTION WPO SUBMITTAL PROJECT NO: 17-0013.005 SCALE: 1 "=30' DESIGNED BY: CR DRAWN BY: MH CHECKED BY: EC SHEET TITLE STORMWATER MANAGEMENT PLAN � C500 SHEET 12 OF 20 AvIT A. MORTON THOMAS AND ASSOCIATES, INC. CONSULTING ENGINEERS 100 GATEWAY CENTRE PARKWAY, SUITE 200 RICHMOND, VA 23235 PHONE (804) 276-6231 EMAIL: AMT1@AMTENGINEERING.COM \ `� ii III Q I A\ \I I I II I II II II I II I CONSULTANTS 3 _ - f \ GRAVEL $7 p.Z' t DIAPHRAGM 4 E COLEMAN 100- Lic. No. 053234 � 573 v I I STONE- °a /� �� �� �� — BERM STORM ° O a / / / a a i I / � i i � . � LN:2 CONTRACTOR SHALL 2 0 i �t\� i S8301,A 1 h PROVIDE A SMOOTH LS FLUSH CONNECTION TO AVON STREET EXTENDED h� AND ASPHALT PATH PRETREATMENT CELL vv i STONE 2 i vv BERM 8 � . CpNTRACTv SHAL ; �I �� CONTRACTOR / / 1 IN�LUDE PR( VISIONS °� \ CLEANOUT h SHALL VERIFY TO vPROTECTv GAS `b SEPARATION LINE DURING �` SEE SHEET ------ - - CONSTRUCTIO I o) 6" PERFORATED wq' ' ' ----__PVC -' --- x- 3'LX5'WX2'T 'STORM ,� CLASS Al ` )GI I II CLEANOUT % _ RIPRAP / 1 LN: 1 (SEE SHEET C8.0) -� — �` --------- ---- CALE ELEMENTARY 572 6" SOLID PVC ,-___ PRETREATMENT © SCHOOL SAFE ROUTES � ,.o% SIN - CELL / � TO SCHOOL (SRTS) 3:❑1 - 1757 AVON STREET EXT CHARLOTTESVILLE, VA 22902 EXIST. STORM LN 1 PLAN EXIST. STORM LN 2 PLAN LOCALLY ADMINISTERED PROJ. SCALE: 1"=10' SCALE: 1"=10' STATE PROJ. # EN18-002-974, P101, C501 UPC #113508 595 - 590 - 585 - 580 - 575 - 570 - 565 - 560 5+10 Rrn Oz00 �W LO El00nPO Z-p) (0l<ri LO O06I� ^aiai LO Ntn LOLO � LO N Q �Zrr = Ln Q LO LO ~ O = O U �Z� O O O O Z > ~ �_ Z — � X PROP. w N x Ln x cn Z > z z x z GRADE ``' w w z EXIST. PROP. GROUND GRADE 15" RCP 0 15" RCP 10 5+50 6+00 STORM LN 1 PROFILE SCALE: HORZ 1'=10' VERT 1"=10' 6+50 - 595 610 - - 590 605 - - 585 600 - - 580 595 - - 575 590 - - 570 585 - - 565 580 - 6+65 575 5+05 a: a^-o 3 ofo00r- LO Ln� u) LO Ln LO N H Z W Z O>O O > Z> z > z PROP. EXIST. PROP. GRADE GROUND GRADE 15" RCP O3 15" RCP 4 5+ 50 STORM LN 2 PROFILE SCALE: HORZ 1'=10' VERT 1"=10' - 610 - 605 - 600 - 595 - 590 - 585 - 580 6+00 MARK DATE DESCRIPTION WPO SUBMITTAL PROJECT NO: 17-0013.005 SCALE: AS SHOWN DESIGNED BY: CR DRAWN BY: MH CHECKED BY: EC SHEET TITLE STORMWATER MANAGEMENT PLAN C501 SHEET 13 OF 20 -- -- -- 586_- q -_ _ co s --- '- 00 co Ln 587-") w A 584 looILO \\ / ------------ 586, 5 8 0 — -- - -------------------- BIORETENTION GRADING 1"=10' BIORETENTION NOTES 1. THE BIORETENTION BASIN SHALL BE CONSTRUCTED AFTER THE SITE WORK IS COMPLETE AND STABILIZATION MEASURES HAVE BEEN IMPLEMENTED. IF THIS IS NOT POSSIBLE, STRICT IMPLEMENTATION OF ESC PROTECTIVE MEASURES SHALL BE INSTALLED AND MAINTAINED IN ORDER TO PROTECT THE BIORETENTION BASIN FROM PREMATURE CLOGGING AND FAILURE. 2. PLACEMENT OF THE PLANTING SOIL IN THE BIORETENTION BASIN SHALL BE IN LIFTS OF 18 INCHES OR LESS AND LIGHTLY COMPACTED. MINIMAL COMPACTION EFFORT CAN BE APPLIED TO THE SOIL BY HAND TAMPING. 3. PLANTING SOIL SHALL MEET THE REQUIREMENTS AS RECOMMENDED IN THE VIRGINIA STORMWATER MANAGEMENT HANDBOOK, FIRST EDITION 1999. 4. THE PLANT MATERIAL WITHIN THE BIORETENTION BASIN SHALL CONFORM TO THE CURRENT ISSUE OF THE AMERICAN STANDARD NURSERY STOCK PUBLISHED BY THE AMERICAN ASSOCIATION OF NURSERYMEN. PLANT MATERIAL SHALL BE SELECTED FROM CERTIFIED NURSERIES THAT HAVE BEEN INSPECTED BY STATE OR FEDERAL AGENCIES. 5. THE PLANT INSTALLATION FOR THE BIORETENTION BASIN SHALL BE PERFORMED BY A PROFESSIONAL LANDSCAPE CONTRACTOR. PLANTS SHALL HAVE A FULL ONE YEAR WARRANTY. PLANTING SCHEDULE !� SET PLUMB h FINISHED GRADE 1" COMPACTED EARTH SAUCER o G z y 2" HARDWOOD MULCH PERMANENT SEEDING -- 3� PRETREATMENT CELL 0.9 36" BIORETENTION SOIL 3" PEA GRAVEL — 12" #57 STONE — 6" PERFORATED PVC UNDERDRAIN ELEV. 579.68 ^i r AAi %A, A e"i irn r rL rLr♦ r �ur�rV GRAVEL DIAPHRAGM DETAIL 1"=1' VARIES EXISTING GRADE I=—`�—,;,_�—�. REMOVE BURLAP FROM ,III=III— TOP 3 OF ROOT BALL, 3 x ROUGHEN ROOT BALL FOR BALL DIA. (MIN.) CONTAINER GROWN STOCK SHRUB PLANTING DETAIL NOT TO SCALE BOTANICAL NAME SYMBOL COMMON NAME QTY MINIMUM SIZE AT PLANTING 0 MAGNOLIA VIRGINIANA (M.V.) SWEETBAY MAGNOLIA 4 36"-48" TALL OR 18"-24" SPREAD N HAMAMELIS VIRGINIANA H.V.) WITCHHAZEL 3 36"-48" TALL OR 18"-24" SPREAD m ILEX VERTICULATA (I.V.) WINTERBERRY 4 36"-48" TALL OR 18"-24" SPREAD V) CORNUS SERICEA (C.S.) RED OSIER DOGWOOD 4 36"-48" TALL OR 18"-24" SPREAD 0 MYRICA CERIFERA (M.C.) WAX MYRTLE 4 36"-48" TALL OR 18"-24" SPREAD ''i c� IRIS VERSICOLOR 00000 BLUE FLAG IRIS 21 1 GALLON POTTED m SCIRPUS AMERICANUS COMMON THREE SQUARE 16 1 GALLON POTTED w GROUND COVER PLANTING DETAIL NOT TO SCALE 3" HARDWOOD MULCH STONE BERM STONE BERM 1- YR WSEL 584.39 CLEANOUT CAP CLEANOUT ELEV. 583.68 CAP - - - ---VARIES�30-'=3.2')--_-_ --- --- -------------------------- - - -rE_ 12" SUMP ELEV. 579.18 SECTION A -A 1 "= 4' IISHED GRADE 2" HARDWOOD MULCH PLANTING SOIL MIXTURE ROUGHEN ROOT BALL PRIOR TO PLACEMENT GRAVEL DIAPHRAGM PERMANENT SEEDING �.• 1 --4 3" HARDWOOD MULCH 36" BIORETENTION SOIL 3" PEA GRAVEL 12" #57 STONE 6" PVC UNDERDRAIN (PERFORATED) ELEV. 579.68 PRETREATMENT CELL r 10-YR WSEL 584.91 - 2-YR WSEL 584.72 1-YR WSEL 584.57 WQv 584.18 FF-ELEV. 583.68 FILTER FABRIC 30" WIDE ON .- . UNDERDRAIN ELEV. 579.18 SECTION B-B 1"=4' BIORETENTION LANDSCAPING 1"=5' -------------- PERMANENT SEEDING 5' MIN. ELEV. 585.18 ---------------------�- ELEV. 584.68 ---------------------- AVIT A. MORTON THOMAS AND ASSOCIATES, INC. CONSULTING ENGINEERS 100 GATEWAY CENTRE PARKWAY, SUITE 200 RICHMOND, VA 23235 PHONE (804) 276-6231 EMAIL: AMT1@AMTENGINEERING.COM CONSULTANTS �y oV ALeF J Ilili �� -�U Vkuro eo +'a� CALE ELEMENTARY SCHOOL SAFE ROUTES TO SCHOOL (SRTS) 1757 AVON STREET EXT CHARLOTTESVILLE, VA 22902 LOCALLY ADMINISTERED PROJ. STATE PROJ. # EN18-002-974, P101, C501 UPC #113508 MARK DATE DESCRIPTION WPO SUBMITTAL PROJECT NO: 17-0013.005 SCALE: AS SHOWN DESIGNED BY: CR DRAWN BY: MH CHECKED BY: EC SHEET TITLE STORMWATER MANAGEMENT PLAN C502 SHEET 14 OF 20 INTRODUCTION THE DISTURBED AREA FOR THIS PROJECT IS APPROXIMATELY 22,215 SQUARE FEET (0.51 ACRES). ACCORDING TO THE ALBEMARLE COUNTY CODE SEC. 17-302, ALL PROJECTS GREATER THAN 10,000 SQUARE FEET IN DISTURBED AREA MUST COMPLY WITH THE VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) REGULATIONS, INCLUDING WATER QUALITY AND WATER QUANTITY REQUIREMENTS. THE PROJECT WILL RESULT IN A NET INCREASE IN THE IMPERVIOUS AREA OF APPROXIMATELY 3,718 SQUARE FEET (0.085 ACRES). EXISTING DRAINAGE PATTERNS OF THE SITE WILL BE MAINTAINED TO THE EXTENT PRACTICABLE. RUNOFF FROM THE PROJECT AREAS DRAINS TO A POINT OF ANALYSIS (POA) LOCATED AT THE OUTLET OF THE 18-INCH STORM DRAIN AT THE SOUTH OF THE PROJECT NEAR THE MID -BLOCK CROSSING. THIS IS THE LOCATION WHERE THE DRAINAGE FROM BOTH PORTIONS OF THE PROJECT WILL CONVERGE. WATER QUALITY WATER QUALITY DESIGN CALCULATIONS FOR THIS PROJECT WERE PREPARED IN ACCORDANCE WITH THE VIRGINIA RUNOFF REDUCTION METHOD (VRRM) SPREADSHEET USING THE RATIONAL METHOD. THE VRRM SPREADSHEET IS SHOWN BELOW AND CORRESPONDING DRAINAGE AREA MAP SHOWN ON SHEET C5.0. THE VRRM SPREADSHEET SHOWS THAT A POST DEVELOPMENT TOTAL PHOSPHORUS (TP) LOAD REDUCTION OF 0.26 LB./YR. IS REQUIRED FOR THIS PROJECT. AFTER EXTENSIVE INVESTIGATION, IT WAS DETERMINED THAT A BIORETENTION BASIN LOCATED ALONG THE SOUTH SIDE OF THE SCHOOL'S SECONDARY ENTRANCE WOULD BE THE MOST IDEAL LOCATION AND METHOD OF TREATMENT. THE WESTERN SECTION OF THE PARALLEL PARKING WILL BE GRADED TO CAPTURE ALL RUNOFF FROM THE PARKING LOT, THE ADJACENT SIDEWALK TO THE HIGH POINT AND ADJACENT SLOPE TO THE PROPERTY LINE AND RELEASE IT ACROSS THE NORTHERN ENTRANCE INTO THE BIORETENTION BASIN. THE SOUTHERN AND CENTRAL SIDEWALKS WILL NOT BE TREATED. IN TOTAL 0.13 ACRES OF MANAGED TURF AND 0.11 ACRES OF IMPERVIOUS SURFACE WILL BE TREATED BY THE PROPOSED LEVEL 2 BIORETENTION BASIN. WITH A 50% PHOSPHORUS REMOVAL EFFICIENCY RATE THE LEVEL 2 BIORETENTION BASIN WILL PROVIDE A PHOSPHORUS REMOVAL RATE OF 0.27 LB./YR. EXCEEDING THE REQUIRED 0.26 LB./YR. REDUCTION. THE BIORETENTION BASIN WAS DESIGNED USING VIRGINIA DEQ STORMWATER DESIGN SPECIFICATION NO. 9, DATE MARCH 1, 2011. ACCORDING TO TABLE 9.3 A LEVEL 2 BIORETENTION BASIN SHALL BE CALCULATED USING SURFACE AREA (SQ. FT.) = [(1.25)(TV)]/STORAGE DEPTH. STORAGE DEPTH IS FOUND BY CALCULATING THE SUM OF THE VOIDS OF THE BIORETENTION LAYERS. THEREFORE, THE SURFACE AREA > (1.25) (467)/1.67 OR 350 SQUARE FEET. THE DESIGNED BASIN HAS A SURFACE AREA OF 358 SQUARE FEET. WATER QUANTITY SINCE THIS PROJECT WILL BE DISCHARGING TO A MAN-MADE STORMWATER CONVEYANCE SYSTEM, IN ACCORDANCE WITH THE VIRGINIA ADMINISTRATIVE CODE 9VAC25-870-66, CHANNEL PROTECTION WILL BE SATISFIED BY CONVEYING THE POST -DEVELOPMENT PEAK FLOW RATE FROM THE 2-YEAR, 24-HOUR STORM EVENT WITHOUT CAUSING EROSION OF THE SYSTEM. THE POINT OF ANALYSIS POINT IS TO BE WHERE EITHER: 1. BASED ON LAND AREA, THE SITE'S CONTRIBUTING DRAINAGE AREA IS LESS THAN OR EQUAL TO 1.0% OF THE TOTAL WATERSHED AREA; OR 2. BASED ON PEAK FLOW RATE, THE SITE'S PEAK FLOW RATE FROM THE 1-YEAR, 24-HOUR STORM IS LESS THAN OR EQUAL TO 1.0% OF THE EXISTING PEAK FLOW RATE FROM THE 1-YEAR, 24-HOUR STORM PRIOR TO THE IMPLEMENTATION OF ANY STORMWATER QUANTITY CONTROL MEASURES. RATHER THAN PERFORM A COMPLICATED ANALYSIS OF THE DOWNSTREAM SYSTEM, WE CHOSE TO FOLLOW SUBDIVISION 3 OF 9VAC25-870-66 BY USING THE "ENERGY BALANCE". THE `ENERGY BALANCE" USES THE MAXIMUM PEAK FLOW RATE FROM THE 1-YEAR, 24-HOUR STORM FOLLOWING THE LAND -DISTURBING ACTIVITY SHALL BE CALCULATED USING QDEVELOPED S I.F. (QPRE-DEVELOPED* RVPRE-DEVELOPED) / RVDEVELOPED• WHERE I.F. IS THE IMPROVEMENT FACTOR. SINCE THE SITE IS LESS THAN 1-ACRE THE IMPROVEMENT FACTOR IS EQUAL TO 0.9. THEREFORE, QDEVELOPED s 0.9 (3.55 0.573) / 0.567 OR 3.23 CFS. FROM THE ROUTING RESULTS THE 1-YEAR, 24-HOUR STORM HAS A RUNOFF RATE OF 3.20 CFS THEREBY SATISFYING THE `ENERGY BALANCE". TABLE 1: PEAK FLOW RATES GENERATED FROM SITE STORM EVENT PRE -DEVELOPED CONDITIONS (CFS) POST -DEVELOPED CONDITIONS (CFS) CHANGE 1-YR, 24-HR 3.55 3.19 -0.36 2-YR, 24-HR 9.87 9.21 -0.66 10-YR, 24-HR 19.57 18.92 -0.65 FIRST YEAR MAINTENANCE OPERATIONS SUCCESSFUL ESTABLISHMENT OF BIORETENTION AREAS REQUIRES THAT THE FOLLOWING TASKS BE UNDERTAKEN IN THE FIRST YEAR FOLLOWING INSTALLATION: • INITIAL INSPECTIONS. FOR THE FIRST 6 MONTHS FOLLOWING CONSTRUCTION, THE SITE SHOULD BE INSPECTED AT LEAST TWICE AFTER STORM EVENTS THAT EXCEED 1/2 INCH OF RAINFALL. • SPOT RESEEDING. INSPECTORS SHOULD LOOK FOR BARE OR ERODING AREAS IN THE CONTRIBUTING DRAINAGE AREA OR AROUND THE BIORETENTION AREA, AND MAKE SURE THEY ARE IMMEDIATELY STABILIZED WITH GRASS COVER. • FERTILIZATION. ONE-TIME, SPOT FERTILIZATION MAY BE NEEDED FOR INITIAL PLANTINGS. • WATERING. WATERING IS NEEDED ONCE A WEEK DURING THE FIRST 2 MONTHS, AND THEN AS NEEDED DURING FIRST GROWING SEASON (APRIL-OCTOBER), DEPENDING ON RAINFALL. • REMOVE AND REPLACE DEAD PLANTS. SINCE UP TO 10% OF THE PLANT STOCK MAY DIE OFF IN THE FIRST YEAR, CONSTRUCTION CONTRACTS SHOULD INCLUDE A CARE AND REPLACEMENT WARRANTY TO ENSURE THAT VEGETATION IS PROPERLY ESTABLISHED AND SURVIVES DURING THE FIRST GROWING SEASON FOLLOWING CONSTRUCTION. THE TYPICAL THRESHOLDS BELOW WHICH REPLACEMENT IS REQUIRED ARE 85% SURVIVAL OF PLANT MATERIAL AND 100% SURVIVAL OF TREES. MAINTENANCE INSPECTIONS IT IS HIGHLY RECOMMENDED THAT A SPRING MAINTENANCE INSPECTION AND CLEANUP BE CONDUCTED AT EACH BIORETENTION AREA. THE FOLLOWING IS A LIST OF SOME OF THE KEY MAINTENANCE PROBLEMS TO LOOK FOR: • CHECK TO SEE IF 75% TO 90% COVER (MULCH PLUS VEGETATIVE COVER) HAS BEEN ACHIEVED IN THE BED, AND MEASURE THE DEPTH OF THE REMAINING MULCH. • CHECK FOR SEDIMENT BUILDUP AT CURB CUTS, GRAVEL DIAPHRAGMS OR PAVEMENT EDGES THAT PREVENTS FLOW FROM GETTING INTO THE BED, AND CHECK FOR OTHER SIGNS OF BYPASSING. • CHECK FOR ANY WINTER- OR SALT -KILLED VEGETATION, AND REPLACE IT WITH HARDIER SPECIES. • NOTE PRESENCE OF ACCUMULATED SAND, SEDIMENT AND TRASH IN THE PRE-TREATMENT CELL OR FILTER BEDS, AND REMOVE IT. • INSPECT BIORETENTION SIDE SLOPES AND GRASS FILTER STRIPS FOR EVIDENCE OF ANY RILL OR GULLY EROSION, AND REPAIR IT. • CHECK THE BIORETENTION BED FOR EVIDENCE OF MULCH FLOTATION, EXCESSIVE PONDING, DEAD PLANTS OR CONCENTRATED FLOWS, AND TAKE APPROPRIATE REMEDIAL ACTION. • CHECK INFLOW POINTS FOR CLOGGING, AND REMOVE ANY SEDIMENT. • LOOK FOR ANY BARE SOIL OR SEDIMENT SOURCES IN THE CONTRIBUTING DRAINAGE AREA, AND STABILIZE THEM IMMEDIATELY. • CHECK FOR CLOGGED OR SLOW -DRAINING SOIL MEDIA, A CRUST FORMED ON THE TOP LAYER, INAPPROPRIATE SOIL MEDIA, OR OTHER CAUSES OF INSUFFICIENT FILTERING TIME, AND RESTORE PROPER FILTRATION CHARACTERISTICS. ROUTINE AND NON -ROUTINE MAINTENANCE TASKS MAINTENANCE OF BIORETENTION AREAS SHOULD BE INTEGRATED INTO ROUTINE LANDSCAPE MAINTENANCE TASKS. IF LANDSCAPING CONTRACTORS WILL BE EXPECTED TO PERFORM MAINTENANCE, THEIR CONTRACTS SHOULD CONTAIN SPECIFICS ON UNIQUE BIORETENTION LANDSCAPING NEEDS, SUCH AS MAINTAINING ELEVATION DIFFERENCES NEEDED FOR PONDING, PROPER MULCHING, SEDIMENT AND TRASH REMOVAL, AND LIMITED USE OF FERTILIZERS AND PESTICIDES. A CUSTOMIZED MAINTENANCE SCHEDULE MUST BE PREPARED FOR EACH BIORETENTION FACILITY, SINCE THE MAINTENANCE TASKS WILL DIFFER DEPENDING ON THE SCALE OF BIORETENTION, THE LANDSCAPING TEMPLATE CHOSEN, AND THE TYPE OF SURFACE COVER. A GENERALIZED SUMMARY OF COMMON MAINTENANCE TASKS AND THEIR FREQUENCY IS PROVIDED IN TABLE 9.7. OF ANALYSIS POINT IS TO BE WHERE EITHER: THE MOST COMMON NON -ROUTINE MAINTENANCE PROBLEM INVOLVES STANDING WATER. IF WATER REMAINS ON THE SURFACE FOR MORE THAN 48 HOURS AFTER A STORM, ADJUSTMENTS TO THE GRADING MAY BE NEEDED OR UNDERDRAIN REPAIRS MAY BE NEEDED. THE SURFACE OF THE FILTER BED SHOULD ALSO BE CHECKED FOR ACCUMULATED SEDIMENT OR A FINE CRUST THAT BUILDS UP AFTER THE FIRST SEVERAL STORM EVENTS. THERE ARE SEVERAL METHODS THAT CAN BE USED TO REHABILITATE THE FILTER (TRY THE EASIEST THINGS FIRST, AS LISTED BELOW): • OPEN THE UNDERDRAIN OBSERVATION WELL OR CLEANOUT AND POUR IN WATER TO VERIFY THAT THE UNDERDRAINS ARE FUNCTIONING AND NOT CLOGGED OR OTHERWISE IN NEED OF REPAIR. THE PURPOSE OF THIS CHECK IS TO SEE IF THERE IS STANDING WATER ALL THE WAY DOWN THROUGH THE SOIL. IF THERE IS STANDING WATER ON TOP, BUT NOT IN THE UNDERDRAIN, THEN THERE IS A CLOGGED SOIL LAYER. IF THE UNDERDRAIN AND STAND PIPE INDICATES STANDING WATER, THEN THE UNDERDRAIN MUST BE CLOGGED AND WILL NEED TO BE SNAKED. • REMOVE ACCUMULATED SEDIMENT AND TILL 2 TO 3 INCHES OF SAND INTO THE UPPER 8 TO 12 INCHES OF SOIL. • INSTALL SAND WICKS FROM 3 INCHES BELOW THE SURFACE TO THE UNDERDRAIN LAYER. THIS REDUCES THE AVERAGE CONCENTRATION OF FINES IN THE MEDIA BED AND PROMOTES QUICKER DRAWDOWN TIMES. SAND WICKS CAN BE INSTALLED BY EXCAVATING OR AUGERING (USING A TREE AUGER OR SIMILAR TOOL) DOWN TO THE GRAVEL STORAGE ZONE TO CREATE VERTICAL COLUMNS WHICH ARE THEN FILLED WITH A CLEAN OPEN GRADED COARSE SAND MATERIAL (ASTM C-33 CONCRETE SAND OR SIMILAR APPROVED SAND MIX FOR BIORETENTION MEDIA). A SUFFICIENT NUMBER OF WICK DRAINS OF SUFFICIENT DIMENSION SHOULD BE INSTALLED TO MEET THE DESIGN DEWATERING TIME FOR THE FACILITY. • REMOVE AND REPLACE SOME OR ALL OF THE SOIL MEDIA. Table 9.7. Suggested Amival Mah7renance Activities for Brorereririm Maintenance Tasks Frequency • Mov�ing of grass filter strips and bioretention turf cover At least 4 times a year • Spat „eedirlg, erosion repair. trash removal, and mulch raping 7,,vice during gro-vying season • Add reinforcement planting to maintain desired thc- vegetation density As needed • Remove invasive plants using recommended control methods • Stabilize the contributing drainage area to prevent erosion Spring inspection and cleanup • Supplement mulch to maintain a 3 inch layer Annually • Prune trees and shrubs • Remove sediment in re -treatment cells and inflow points Once every 2 to 3 years • Replace the mulch layer Every 3 years DEQ Virginia Runoff Reduction Method Re -Development Compliance Spreadsheet - Version 3.0 BMP Design Specifications List: 2011 Stds & Specs Site Summary - Linear Development Project*** Project Title: Cale Elementary SRTS Date: 43571 Total Rainfall (in): 43 Total Disturbed Acreage: 0.51 Site Land Cover Summary Pre-ReDevelonment 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 0.05 0.34 0.00 0.39 67 Impervious Cover (acres) 0.00 0.07 0.12 0.00 0.19 33 0.58 1 100 Post-ReDevelanment 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 0.05 0.26 0.00 0.31 53 ImperviousCover (acres) 1 0.00 1 0.07 1 0.20 1 0.00 1 0.27 1 47 0.58 1100 Site Tv and Land Cover Nutrient Loads Post-DevelopmentFinal Post - Adjusted (Post-ReDevelopment Development Treatment Volume (ft)ReDevelopment otalTPLoad Reduction Required (lb/yr) 0.25 N/A*** N/A*** ***This is a Iineor developrrmnt project Final Post -Development Load _D Pre- Site Compliance Summary- ***Linear Development Project Maximum % Reduction Required Belo Pre -Redevelopment Load 2090 Total Runoff Volume Reduction (ft) 374 Total TP Load Reduction Achieved (lb/yr) 0.26 Total TN Load Reduction Achieved (lb/yr 1.93 Remaining Post Development TIP Load (lb/yr)0.47 Remaining TP Load Reduction (lb/yr Required 0.00 Drainage Area A Summary Land Cover Summary ** TARGET TP REDUCTION EXCEEDED BY 0.01 LB/YEAR ** A Soils B Soils C Soils D Soils Total % of Total Forest/Open (acres) 0.00 0.00 0.00 0.00 0.00 0 Managed Turf (acres) 0.00 0.00 0.14 0.00 0.14 57 Impervious Cover (acres) 0.00 0.00 0.10 0.00 0.10 43 1 0.24 1 BMP Selections Pre- ReDevelopment FinalPost-Development Post-ReDevelopmentTP TP Load per acre TP Load per acre Load per acre lb/acre r (Ib/acre%yr) (Ib/acre/yr) 1.14 1.28 1.14 Managed Turf Impervious TP Load from BMP Treatment Untreated TP Load TP Removed TP Remaining Downstream Treatment Practice Credit Area Cover Credit 3 Volume (ft } Upstream to Practice (Ibs) (Ib/yr) (Ib/yr) to be Employed acres Area (acres) PracticesIbs 6.b. Bioretention #2 or Micro-Bioretention 0.055 0.094 368.08 0.00 0.23 0.21 0.02 #2 (Spec #9 Total Impervious Cover Treated (acres) 0.10 Total Turf Area Treated (acres) 0.14 Total TP Load Reduction Achieved in D.A. 0.26 Ib r Total TN Load Reduction Achieved in D.A. Ib/ r 1.93 AVIT A. MORTON THOMAS AND ASSOCIATES, INC. CONSULTING ENGINEERS 100 GATEWAY CENTRE PARKWAY, SUITE 200 RICHMOND, VA 23235 PHONE (804) 276-6231 EMAIL: AMT1@AMTENGINEERING.COM 1 CONSULTANTS 1 �y oV ALeF J Ilili -�U Vkuro eo +'a` 1IRGI1 CALE ELEMENTARY SCHOOL SAFE ROUTES TO SCHOOL (SRTS) 1757 AVON STREET EXT CHARLOTTESVILLE, VA 22902 LOCALLY ADMINISTERED PROJ. STATE PROJ. # EN18-002-974, P101, C501 UPC #113508 1 MARK I DATE I DESCRIPTION 1 WPO SUBMITTAL PROJECT NO: 17-0013.005 SCALE: AS SHOWN DESIGNED BY: CR DRAWN BY: MH CHECKED BY: EC SHEET TITLE STORMWATER MANAGEMENT PLAN C503 SHEET 15 OF 20 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 11 x 17 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 \ \ \ \ \ \ 1 1 \ \ \ \ \ \ \ 3 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 7y \ \ \ 1 \ \ \ \ \ \ \ \ \ \ \ \ \ 1 0, 1 0 2 II I I III / /' II / 1 I / 1 I / I O � OI ` 574 SF / 1 0SF I i � I � ID I 0 iO � / I / ' II CD / / / I � I MU PS TO o 0 ' / I i I I I I SF I I r0 CD57 l MATCH LINE - SEE SHEET C6.1 \ E E 12 T-R E E A --- ` °J �> c+\ y F`\ \ APPROX. LOC. (DATUR)cy Li \ � f\/ I I G7 I I I \ 1 \ \ 1 \ `\00 I I II � II I II I I I 1 \ I 71 I II I II II II 11 \\ I � N 1/1 X O 5" TREE AREA OF CLEARING/GRADING 1ITREE6 II �� I I A I EA OF AF ING /GRADINP I I I � I f I N I I I UGE UGE uGE -- OG UGE I X \ I �1\ I \ O I \ TOCKPILE,'AREA UGE l_ /i UGC`\ `I \ \\\ EXISTING 20' WIDE SANITARY SEWER EASEMENT (DB 1 132 PG 751 ) E h " MU PS TO \ ---- - `/'v `\;x\ `\ AREA OF CLEARING/66DING a0i �%- 24" TREE ; ,' 0 h �\ \ _ 00 \ o 20 WID TA EASEMENT, (��1's� PG 75 Go � 00 try ,` r`\ o /� - \ -- ---- -- � I V) N \\ � O 0) `n 4 C o00°0 MU PS TO \ <r UGE S` SS \ S aoi \ PT 1 � \ \ _ (per - - — O 12>> E r � ,�\ ;' goo � \ N 'II 'I ao�->��,�� -- •,- - P \,; ; ; G 5 TREE I ---SF EDAR O - --- - re rr /r i � •,�Y I� luv EXi OD -- - '6----- LOD LOD ---- - y-i ST. PR 4-2- sr __ \ D G [�- - ; 5" TREE SF CONTRACTOR SHALL ,r,; ;K `''yam 0 PROTECT TREE DURING MU PS TO 0 CONSTRUCTION00 0 MU PS TO AREA OF CLEARING/GRADING V / `\ I - _ 572 I I n W / / \ 0 I r 0 \ ` I ,' / I \ I I \ I I \ I \ 11 I \ I 1 \ I I 1 \ O I r0 SF I \ I 0 II I 11 \ I I \ � I \ , 1 / I 1 0 1 I \ I J 1 O I � I � I I J \\ \ I \ I \ I I I I \ O \ r \ I I I I III I I I I I I I I I I � I I I I I I Q O I I U I \ I Io � I X \ O I Q \ / SF — I I I I — �Co I i I � I � I � I � I ' I POLLUTION PREVENTION LEGEND TITLE KEY STOCKPILE/STORAGE AREAS SS PORTABLE TOILET PT TRASH RECEPTACLE S AVIT A. MORTON THOMAS AND ASSOCIATES, INC. CONSULTING ENGINEERS 100 GATEWAY CENTRE PARKWAY, SUITE 200 RICHMOND, VA 23235 PHONE (804) 276-6231 EMAIL: AMT1@AMTENGINEERING.COM CONSULTANTS �y oV ALeF o � Ililf 9�� AI -�-.1.1-AD 7"J� CALE ELEMENTARY SCHOOL SAFE ROUTES TO SCHOOL (SRTS) 1757 AVON STREET EXT CHARLOTTESVILLE, VA 22902 1 MARK I DATE I DESCRIPTION 1 PROJECT NO: 17-0013.005 SCALE: 1 "=10' DESIGNED BY: CR DRAWN BY: MH CHECKED BY: EC SHEET TITLE POLLUTION PREVENTION PLAN 0 10' 20' SCALE: 1 "=10' ppi ■ SHEET 1 OF 3 Q 0 O O X O Q / � 2 I \ Q \\ 0 W / \ I W QWLi —� i O V) I / \ Cn �� cs, Co LOD J / TREE 1 \\ \ / �0 10" TREE v vv i MU PS TO a�=' \ O __------1--- 101 -- / 1 \ j AREA OF CLEARING/GRApING I � I I I I J I IMU PS TO I II a0 I \ 0 01 CP 1 I I LOD -- LOD J TRV 2 II ," I � /I � I I r Do I � I \ / \ I I I I I / I III I I \ I I I II I I i v < 112" WI EEO W I \\\ I \\\ N ' I L D \ SF v --- N '--- AREAI OF ChEAIRIOG/GF AbiN' G y - I I \I \\ I\ \ \ \I \1 II I I \ I I \ \ CD I I I \ \ \ 1 I I I _ I I \\ \\ i I/ 0 I I \ \ I I \ \ I I L I \ SF ------ I \ I I I \ /71\ \ \ \ \ / \ I \ \ \ \ 1 \ \ 12 TREE \ \ I C CD 01 � FITI Y \ FT ( `\ TREE O \ - 0 S ; - t 2" TR E 11 - I X I I I I 1 I I \ r O SF I f N I ' /' I ✓ ' , FT-1 ' LbD j - / / NI MATCH LINE - SEE SHEET C6.0 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \s 007 I I I I L 0 D I I I APPROX. i LOC. (DATUR) I I APPROX. EOC.� (DATUR) I I co AREA OF CLEARING/GRADI G I O II � N I I p, G.v�J O m J O 00 z I W / I � w Ln I Q I W I W z I I � I � W Q II � II Q APPROX. EO(-I (DATUR) N \ O N \ X W POLLUTION PREVENTION LEGEND TITLE KEY STOCKPILE/STORAGE AREAS SS PORTABLE TOILET PT TRASH RECEPTACLE s APPROX. L�. (DATUR) 10 9 P a 9 / / / / / I L N U) mikin's e���m N Cb I � II � III � I Zf N N cn n I N Z m w W � Q z LLI W LLI W u Q W u� W >_ z co Qf � Q LLI < N w Q o u Q _ N 0 N O Z W N W AVIT A. MORTON THOMAS AND ASSOCIATES, INC. CONSULTING ENGINEERS 100 GATEWAY CENTRE PARKWAY, SUITE 200 RICHMOND, VA 23235 PHONE (804) 276-6231 EMAIL: AMT1@AMTENGINEERING.COM 1 CONSULTANTS 1 ,!oo ALeF o � Ililf 9�� T MuAD \JAG I � � CALE ELEMENTARY SCHOOL SAFE ROUTES TO SCHOOL (SRTS) 1757 AVON STREET EXT I CHARLOTTESVILLE, VA 22902 cn N V) N N 0 V) 1 MARK I DATE I DESCRIPTION 1 PROJECT NO: 17-0013.005 SCALE: 1 "=10' DESIGNED BY: CR DRAWN BY: MH CHECKED BY: EC SHEET TITLE POLLUTION PREVENTION PLAN I PP1 2 0 10, 20' ■ SCALE: V=10' SHEET 2 OF 3 / I 1 p 1' 1 U1► I \J / I 1 n ► � ► �1 1 \\ / , 1 � 1 \ 1 ► I \ I � \ AREA OF CLEARING/GRADING POLLUTION PREVENTION LEGEND TITLE KEY STOCKPILE/STORAGE AREAS SS PORTABLE TOILET PT TRASH RECEPTACLE RR v > 0 \ MU PS TO WATER FINE \EST PIT TRV 1 AUG, 9, 2019 > 48" DEPTH ALON\ \ TREE FINE SF 00 ------ \\ Em \ \ 9 � \Sgo \ -- __ 00 \ \ L - - C,(D Op I 0 \ --- _ ------ -- --__ \ ---- - OD mu S TO � \as \ --- LOp------- / I 0000 ° o o° Go' `\ .- - I P \ \ S8 L Op - --595 � - 59 Q �86 S 58g, 590- Sg�_ 592 -- L00- LO` - --- 0 - ------ _-_ D Qp ------ - -- M U PS TO $ ---- - -LOD - LOD I 1 1 _ _- - --- 589 ---- - 1 6 \ 0 \ 1 Q� _ _ - - AREA OF CLEARING/GRADING x ► �` 71 Li rTl In \\ I STOCKPILE/LAYDOV1 vv ►► AREA P 8 o SF \ , S Ch r � �0 1 SF _ 120 MU PS TO - --- O07 SF---- --— \ ^ 585/ \\ O \ I - I I - r C) I \ �i 007 uL � - -- 01 CIO,-----------001 QOI - -G0l 00 001 v07 \ a01 C7 O0 L0� o zm m 2" TREE SF \ -- - `y------\__ �_ m 8TREE _ r \ - \ 8" TREE I I I � I s I I d \ I \l I � fI \ \ S i h Q d \', LLJ Of \ Q \ C) Q I 0 I vv r� ARA OF CLEARING/GRADING--_- vv ct" \\ 0 TREE\' TREE - I ii 24' FREE - - \ 8" CO EE NEEDLE I 8"< TREE\ cj� ' I I I i � M V" I I 12" W LLOW ` I �I - I to] ' I I ' I MATCH LINE - SEE ABOVE 0 10' 20' SCALE: 1 "=10' AVIT A. MORTON THOMAS AND ASSOCIATES, INC. CONSULTING ENGINEERS 100 GATEWAY CENTRE PARKWAY, SUITE 200 RICHMOND, VA 23235 PHONE (804) 276-6231 EMAIL: AMT1@AMTENGINEERING.COM 1 CONSULTANTS 1 �y oV ALeF o � Ililf 9�� CALE ELEMENTARY SCHOOL SAFE ROUTES TO SCHOOL (SRTS) 1757 AVON STREET EXT CHARLOTTESVILLE, VA 22902 1 MARK I DATE I DESCRIPTION 1 PROJECT NO: 17-0013.005 SCALE: 1 "=10' DESIGNED BY: CR DRAWN BY: MH CHECKED BY: EC SHEET TITLE POLLUTION PREVENTION PLAN SHEET 3 OF 3 B. Pollutant, or Pollutant Prevention Practices, Generating Activity Location on site Control Measures Stockpile/Storage Areas Area at the southern and northern side of the school's campus. Silt fence will be used to prevent the transport of stored materials. Sanitary Waste At the southern side of the school's campus. A portable toilet will be provided. Waste Material At the southern side of the school's campus. A trash receptacle will be provided. 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 days 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 Dewatering operations Dewatering 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 ON -SITE 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.) iIm 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.) Mr. Jack Kelsey, PE 401 McIntire Road Charlottesville, VA 22902 434.872.4501 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; Materials and equipment necessary for oil or chemical spill cleanup will be kept in the temporary material storage trailer onsite. Equipment will include, but not limited to, brooms, shovels, chemical resistant hand -gloves, glasses, and other forms of personal protection equipment, loose sorbents such as "Oil -Dry" or "Stay -Dry", petroleum sorbent pads, and plastic and metal trash containers. All oil or other chemical spills will be cleaned up immediately upon discovery. Identify and stop source of discharge. Use absorptive materials to soak up as much chemical as possible. Place all contaminated material in trash containers for disposal. Report all spills, leaks and discharges as follows; Virginia Department of Emergency Management Emergency Operations Center (EOC) Phone: (800) 468-8892 Spills large enough to reach the storm sewers will be reported to the National Response Center at 1-800-424-8802. (Provide detailed response and reporting practices according to 9VAC25-880-70, Part Il, section A.4.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.) The registered land disturber shall oversee all construction activities to implement and maintain pollution prevention measures. As such, training and procedures shall be provided by the Contractor for each worker onsite before they begin land disturbing activities. Training on implementation of erosion and sediment control devices/procedures must be provided by the registered land disturber each time a new ESC procedure is constructed. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County SWPPP Training Log Stormwater Pollution Prevention Training Log Project Name: Project Location: Instructor's Name(s): Instructor's Title(s): Course Location: Course Length (hours): Stormwater Training Topic: (check as appropriate) ❑ Erosion Control BMPs ❑ ❑ Sediment Control BMPs ❑ ❑ Non-Stormwater BMPs Specific Training Objective: Date: Emergency Procedures Good Housekeeping BMPs Attendee Roster: (attach additional pages as necessary) No. Name of Attendee Company 1 2 3 4 5 6 7 8 Section 7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload allocation, and exceptional waters. (Provide detailed measures for any applicable TMDL) 'he project site drains to an unnamed tributary of Moores Creek. There does appear to be a TMDL on the receiving Moores ;reek, north of the project, for Bacteria (fecal coliform). However, since the TMDL is not associated with nutrients or edimentation additional inspection or reporting is not required. is unnamed tributary of Moores Creek is not an exceptional water. 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.) Mr. Jack Kelsey, PE Transportation Engineer Facilities & Environmental Services County of Albemarle 401 McIntire Road Charlottesville, VA 22902 434.872.4501 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: Mr. Jack Kelsey, PE Company: Albemarle County Title: Transportation Engineer 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 1, Jack Kelsey (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 Cale Elementary School Safe Routes T, 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: Mr. Jack Kelsey, PE Company: Albemarle County Title: Transportation Engineer 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 PART DISCHARGE AUTHORIZATION AND SPECIAL CONDITIONS A. Coverage under this general permit. 1. 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. 2. 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. 2. 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. 3. 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. a. 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. b. 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. 5. 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. 2. 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. 2. 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 II I K. PART II 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. 2. 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). 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. 4. 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. 5. 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. 6. 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 TMDI-s, 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. 2. 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 2. 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. 3. 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. 2. 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 II 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; 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. 6. 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. 2. 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. Samples and measurements taken for the purpose of monitoring shall be representative of the monitoring activity. 2. 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. 3. 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 8. 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. 1. 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 II I 1 1 or 2 in writing as part of the SWPPP. The reports shall contain the information listed in Part 111 12. 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: 5. "1 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 I I I 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. 2. 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 EROSION & SEDIMENT CONTROL INSPECTION REPORT Project Name: Project Authorit : RLD Name: RLD No: Project Location: Albemarle County Project No: Inspector Name: Inspection Date: Time: STAGE OF CONSTRUCTION STAGE OF INSPECTION Pre -Construction Conference ❑ Stabilization ❑ Initial ❑ Clearing & Grubbing ❑ Construction of SWM Facilities ❑ Routine ❑ Rough Grading ❑ Maintenance of SWM Facilities ❑ Rainfall ❑ Building Construction ❑ Other: ❑ Final ❑ Finish Grading Final ❑ Item # Inspection Questions N/A YES No MS-1 Have required temporary or permanent soil stabilization measures been applied to denuded areas within the required time frames? MS-2 Are all on -site and off -site disposal areas, borrow sites and/or soil stockpiles being protected temporarily with soil stabilization and/or sediment trapping measures, or by an adequate permanent stabilization? MS-3 Do all denuded areas, not otherwise permanently stabilized, have a permanent vegetative cover established that is uniform, mature enough to survive, and will inhibit erosion? MS-4 Have sediment trapping controls been constructed and made functional as a first step in land El El El disturbing activities? MS-5 Have earthen structures, such as dams, dikes, and diversions, been stabilized immediately after installation? MS-6 Have sediment basins and traps been constructed according to plans, specifications, and/or standards? MS-7 Are the permanent stabilization measures applied to finished cut and fill slopes minimizing erosion? MS-8 Are concentrated flows being routed down cut or fill slopes within an adequate temporary or ❑ ❑ ❑ permanent channel, flume or slope drain? MS-9 Has adequate drainage or other protection been provided for water seeps found originating El El El a slope face? MS-10 Do all operational storm sewer and culvert inlets have adequate inlet protection to prevent El ❑ ❑ sediment -laden water from entering them during construction? MS-11 Have channel linings and outlet protection been installed for newly constructed stormwater conveyance structures prior to the structures becoming operational? Ms,_12 Has work in live watercourses been performed to minimize encroachment, control sediment transport, and stabilize the work area to the greatest extent possible during construction? MS-13 Have non -erodible temporary vehicular stream crossings been utilized for crossing of live watercourses? MS-14 Have all federal, state, and local regulations pertaining to work in or crossing live waterways been adhered to? MS-15 Have the bed and banks of a watercourse been stabilized immediately after work in the watercourse is completed? Item # Inspection Questions N/A YES No MS-16 Has/Is utility line installation being conducted according to the following: (1) less than 500 feet ❑ ❑ ❑ trench open at one time, (2) excavated material placed on uphill side of trench, (3) effluent from dewatering being adequately filtered, (4) backfill material adequately compacted, and (5) disturbed areas stabilized in accordance with regulations? MS-17 Have provisions been taken to minimize sediment transport onto paved surfaces from El El El construction vehicular access and are public roadways being kept clean using required sediment removal and disposed practices? MS-18 Have all temporary E&S control structures, that are no longer needed, been removed and El El El such areas stabilized? MS-19 Are properties and waterways downstream from the development site being protected from El El El sediment deposition, erosion, and flooding due to increases in volume, velocity and peak flow rate of stormwater runoff as required? 9VAC25- Are perimeter and other erosion and sediment control structures and systems being ❑ ❑ ❑ 840-60 maintained, inspected and repaired to ensure functionality? Additional comments: REQUIRED CORRECTIVE ACTION I DEADLINE DATE: I RE -INSPECTION DATE: The above required corrective action deadline date applies to all deficiencies noted on this report, unless a more stringent deadline is given for an individual deficiency. If listed deficiency(s) are not corrected by the deadline date, a NOTICE TO COMPLY, STOP WORK ORDER, and/or other enforcement actions may be issued to the entity responsible for ensuring compliance on the above project. THIS REPORT IS CONFIRMED BY A SIGNATURE: DEQ CERTIFIED INSPECTOR DATE: STORMWA TER MANAGEMENT INSPECTION REPORT Project Name: Project Authority: Operator Name: Operator Contact Info: VPDES Permit Number: Albemarle County Project No: Project Location: Inspector Name: Inspection Date: Time: STAGE OF CONSTRUCTION STAGE OF INSPECTION Pre -Construction Conference ❑ Stabilization ❑ Initial ❑ Clearing & Grubbing ❑ Construction of SWM Facilities ❑ Routine ❑ Rough Grading ❑ Maintenance of SWM Facilities ❑ Rainfall ❑ Building Construction ❑ Other ❑ Final ❑ Finish Grading Final ❑ Post -Construction ❑ Item General Information N/A YES NO Recommended Corrective Actions/Notes 1. Project has VPDES permit coverage to discharge stormwater ❑ ❑ ❑ 2. Permit application submitted ❑ ❑ ❑ 3. Project's coverage letter posted near the site's entrance ❑ ❑ ❑ 4. SWPPP has been prepared ❑ ❑ ❑ 5. Is the internet address for viewing of SWPPP or the location of the SWPPP, including name & telephone number of the contact person, posted conspicuously near the main entrance of the construction site? ❑ ❑ ❑ 6. SWPPP on -site or made available during the inspection ❑ ❑ ❑ 7. SWPPP signed ❑ ❑ ❑ 8. SWPPP being amended (maintained) & updated ❑ ❑ ❑ 9. SWPPP revisions signed and dated ❑ ❑ ❑ 10. Prior to commencing construction, the operator obtained an approved ESC & SWM plan or agreement in lieu of a plan ❑ ❑ ❑ Item General SWPPP Components N/A YES NO Recommended Corrective Actions/Notes 1. A signed copy of the VPDES Permit Registration statement ❑ ❑ ❑ 2. VPDES Permit Coverage Letter ❑ ❑ ❑ 3. Is the VPDES Permit Coverage Letter posted conspicuously near the main entrance of the construction site? ❑ ❑ ❑ 4. Copy of VPDES General Construction Permit ❑ ❑ ❑ 5. A narrative description of the nature of the construction activity, including function of the project ElEl Elthe 6. Sequence & timing of land -disturbance activities ❑ ❑ ❑ 7. Estimate of total land -disturbance area including off -site areas ❑ ❑ ❑ 8. Identification of nearest receiving waters ❑ ❑ ❑ 9. A legible site plan identifying: ❑ ❑ ❑ a. Directions of stormwater flow and approximate slopes anticipated after major grading activities ❑ ❑ ❑ b. Limits of land disturbance including steep slopes and natural buffers around surface waters that will not be disturbed ❑ ❑ ❑ C. 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 d. Location (site map) of surface waters ❑ ❑ ❑ e. Locations (site map) where concentrated stormwater is discharged ❑ ❑ ❑ f. Locations (site map) and description of support activities, when applicable and when required by the VPDES authority, including but not limited to (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) El El El vehicle fueling and maintenance areas, (v) sanitary waste facilities, including those temporarily placed on the construction site; and (vi) construction waste storage g. When applicable, the location (site map) of the on -site rain gauge or the methodology established in consultation with the VPDES authority used to El ❑ ❑ identify measurable storm events for inspection purposes 9. An approved Erosion and Sediment Control (ESC) plan ❑ ❑ ❑ 10. An approved Stormwater Management (SWM) plan ❑ 11. Additional conditions for discharges to impaired waters, surface waters with an applicable TMDL wastelood allocation (WLA), and exceptional waters, per Sections 11.8.5-7. of the VPDES General Permit (i.e. more stringent soil stabilization, nutrient, and inspection requirements, etc.) 12. Plan revisions and approval documentation (if applicable) ❑ ❑ ❑ 13. If applicable, the following required information about participation in a Stormwater Management Plan El El El a. Type of regional facility to which the site contributes ❑ ❑ ❑ b. Geographic location of facility (including city/county & HUC) ❑ ❑ ❑ C. Geographic location of the site (including city/county & HUC) ❑ ❑ ❑ d. Number of acres treated by regional facility ❑ ❑ ❑ 14. If applicable, the following information about Nutrient Offset ❑ ❑ ❑ a. Name of broker from which offsets will be acquired ❑ ❑ b. Geographic location of offset generating facility (city/county & HUC) ❑ ❑ C. Number of offsets to be acquired (Ibs/acre/year) El El d. Nutrient reductions to be achieved onsite (Ibs/acre/year) ❑ ❑ Item Pollution Prevention (P2) Plan Components N/A YES NO Recommended Corrective Actions/Notes 1. Location (site map) and description of the potential pollutant -generating and the pollutant that is expected to be exposed to stormwater ❑ ❑ El 2. A description of the location where the potential pollutant -generating activities will occur. If identified on the site plan, reference the site plan (i.e. ❑ ❑ ❑ pollutant resource map) 3. The location and description of all nonstormwater discharges that are or will ❑ ❑ ❑ be commingled with stormwater discharges from the construction activity, including any applicable support activity (i.e. fire hydrant flushing's, vehicle wash waters, water used for dust control, uncontaminated excavation dewatering, etc. as identified in the Section I.E. of the VPDES General Permit) 4. The location and description of industrial activity discharges covered by the VPDES General Permit such as equipment staging yards, material storage areas, excavated material disposal areas borrow sites, dedicated asphalt plants, concrete plants, etc. (as warranted). Appropriate control measures El El ❑ should be identified within the SWPPP and implemented to address the discharges from any support activity. S. Clearly identify (name and phone number) 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 —both contractors and subcontractors) 6. A description of the pollution prevention practices and procedures that will be implemented to: ❑ ❑ ❑ a. 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 111 G of the VPDES General Permit b. 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 El ❑ ❑ appropriate, and having spill kits readily available) C. 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) d. 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 storm water 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) e. 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 f. 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 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 g. Prevent the discharge of fuels, oils, and other petroleum products, hazardous or toxic wastes, and sanitary wastes (i.e. a spill prevention and response plan) ❑ ❑ ❑ h. Address any other discharge from the potential pollutant -generating activities not addressed above ❑ ❑ ❑ 7. A description of the 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 (i.e. employee ❑ ❑ ❑ training) S. Record of dates (major grading activities, when construction ceases on a portion of the site, and when stabilization occurs). ❑ ❑ ❑ 9. Completed Inspection Reports ❑ ❑ ❑ Item Inspection and Maintenance Questions N/A YES NO Recommended Corrective Actions/Notes 1. All control measures required by the ESC plan are designed, installed and maintained in accordance with good engineering practices and minimum standards of the VESCL and regulations 2. All control measures and SWM BMPs properly selected, installed and maintained in accordance with good engineering practices and where ❑ ❑ ❑ applicable manufacturer specifications 3. Paved or public roads cleaned as required ❑ ❑ ❑ 4. Control measures replaced or modified as soon as practicable if periodic inspections or other information indicated a control measure has been used ❑ ❑ ❑ inappropriately or incorrectly 5. Existing vegetation preserved if possible & all disturbed portions stabilized required timeframes El El El 6. Sediment deposits are removed at o frequency sufficient to minimize off -site ❑ ❑ Elimpacts 7. Construction debris and chemicals exposed to stormwater are controlled becoming a pollutant source El ❑ El 8. Litter exposed to stormwater is controlled from becoming a pollutant source ❑ ❑ ❑ 9. Discharge from stormwater facilities or conveyance systems are to an adequate channel in accordance with VESCR ❑ ❑ ❑ 10. Control measures implemented at the site are consistent with applicable state, local and federal requirements for ESC & SWM ❑ ❑ ❑ 11. Maintenance performed as soon as practical on control measures identified by inspections that are not operating effectively ❑ ❑ ❑ 12. If site inspections identify existing control measures needed to be modified or if additional control measures were necessary for any reason, implementation was completed before the next anticipated storm event. If implementation before the next anticipated storm event was impracticable, El El ❑ the situation was documented in the SWPPP and alternative control measures were implemented as soon as practicable 13. Post -Construction —are SWM BMP's being properly maintained by the owner? ❑ ❑ ❑ 14. Post -Construction —are SWM BMP's properly functioning as designed? ❑ ❑ Item Contractor Inspections N/A YES NO Recommended Corrective Actions/Notes 1. Inspections conducted by opera tor/perm ittee at required frequency ❑ ❑ ❑ 2. Do completed inspection reports and SWPPP components match field conditions at the time of the review? AKA, is the SWPPP being properly ❑ ❑ ❑ implemented? 3. Inspections include all areas of the site disturbed, off -site areas covered by the permit, areas used for storage that are exposed to precipitation, El El El locations where accessible, and downstream locations where discharge locations are not accessible 4. For utility, pipeline, highway construction, contractor utilizes representative inspections. For representative inspections, personnel must inspect control measures 0.25 miles above and below each point where access is allowed ❑ ❑ ❑ and points must be listed in the report. 5. Inspection reports summarize the scope of the inspections and include the information: El El El a. The location(s) of discharges of sediment or other pollutants from the site ❑ ❑ ❑ b. Location(s) of control measures that need to be maintained ❑ ❑ ❑ C. Location(s) of control measures that failed to operate as designed or proved inadequate for a particular location ❑ ❑ ❑ d. Location(s) where additional control measures are needed that did not exist the time of inspection El El El e. Corrective action required, including any changes to the SWPPP that are necessary, and implementation dates ❑ ❑ ❑ f. An estimate of the amount of rainfall at the construction site (in inches) from the runoff producing storm event requiring the inspection, or if inspecting on El El ❑ a seven-day schedule, the amount of rainfall (in inches) since the previous inspection g. Weather information and a description of any discharges occurring at the time of inspection El El ❑ Additional Comments REQUIRED CORRECTIVE ACTION I DEADLINE DATE: I RE -INSPECTION DATE: The above required corrective action deadline date applies to all deficiencies noted on this report, unless a more stringent deadline is given for an individual deficiency. If listed deficiency(s) are not corrected by the deadline date, a NOTICE TO COMPLY, STOP WORK ORDER, and/or other enforcement actions may be issued to the entity responsible for ensuring compliance on the above project. THIS REPORT IS CONFIRMED BY A DEQ CERTIFIED INSPECTOR SIGNATURE: DATE: