TITLE 9. ENVIRONMENT

STATE WATER CONTROL BOARD

Final Regulation

Title of Regulation: 9VAC25-880. General VPDES Permit for Discharges of Stormwater from Construction Activities (amending 9VAC25-880-1 through 9VAC25-880-70).

Statutory Authority: § 62.1-44.15:25 of the Code of Virginia.

Effective Date: July 1, 2024.

Agency Contact: Rebeccah W. Rochet, Deputy Director, Division of Water Permitting, Department of Environmental Quality, 1111 East Main Street, Suite 1400, P.O. Box 1105, Richmond, VA 23218, telephone (804) 801-2950, or email rebeccah.rochet@deq.virginia.gov.

Background: The General VPDES Permit for Discharges of Stormwater from Construction Activities (9VAC25-880) authorizes the discharge of stormwater from construction activities equal to or greater than one acre of land disturbance or less than one acre of land disturbance within a larger common plan of development or sale that results in one acre or more of land disturbance. This regulatory action is needed for existing and new construction activities to be covered under this Virginia Pollutant Discharge Elimination System (VPDES) general permit, which expires on June 30, 2024, and must be reissued in order to make coverage available for discharges of stormwater from construction activities after June 30, 2024.

Summary:

This regulatory action authorizes discharges of stormwater from large and small construction activities, establishes the best management practices and control measures necessary to control such discharges, and updates the effective dates of the five-year general permit term to July 1, 2024, to June 30, 2029. The amendments update the reference to the Code of Federal Regulations to July 1, 2022, and update citations and references to be consistent with the new Virginia Erosion and Stormwater Management Regulation (9VAC25-875), effective July 1, 2024; change the term "board" to "department" throughout the regulation in response to Chapter 356 of the 2022 Acts of Assembly; clarify language in the regulation and general permit; update provisions to be consistent with other recently reissued VPDES general permits, including provisions for authorized nonstormwater discharges and a requirement to include a State Corporation Commission entity identification number when reporting; amend and add provisions to be consistent with the 2022 U.S. Environmental Protection Agency Construction General Permit (effective February 17, 2022), such as (i) requiring the map of the construction site to identify locations of any construction support activities, including areas where polymers, flocculants, or other stormwater treatment chemicals are used or stored; (ii) clarifying how an erosion and sediment control plan shall be implemented to maximize stormwater infiltration, minimize soil compaction, and preserve topsoil; (iii) implementing new requirements for controlling construction dewatering discharges to impaired waters or exceptional waters; and (iv) specifying what an operator must do in the event that the same stormwater control requires repeated repair. Additional amendments (i) allow for reporting of support activities in a modified registration statement; (ii) change the timeline for submitting a completed registration statement to 90 days prior to the expiration date of the general permit; (iii) in compliance with § 62.1-44.15:26.1 of the Code of Virginia, change the timeline for termination of authorization to discharge to 90 days after receipt of notice of termination; and (iv) clarify that concrete wash water cannot be disposed of through infiltration or otherwise disposed of on the ground.

Changes to the proposed regulation (i) add language clarifying that construction activity of a single-family detached residential structure, within or outside a common plan of development or sale, is activity covered by the general permit; (ii) raise the acceptable nephelometric turbidity units and formazin turbidity units in turbidity benchmark measurement; and (iii) add a turbidity benchmark option 3 to the contents of the stormwater pollution prevention plan.

9VAC25-880-1. Definitions.

The following words and terms, when used in this chapter, shall have the following meanings unless the context clearly indicates otherwise. For the purposes of this chapter, words and terms used in this chapter shall have the meanings that are defined in the Virginia Erosion and Stormwater Management Act (Article 2.3 (§ 62.1-44.15:24 et seq.) of Chapter 3.1 of Title 62.1 of the Code of Virginia), this chapter, and 9VAC25-870 the Virginia Erosion and Stormwater Management Regulation (9VAC25-875) [ , ] shall have those meanings unless the context clearly indicates otherwise, except as otherwise specified in this section. Terms not defined in the Act, this chapter, or 9VAC25-870 shall have the meaning attributed to them in the federal Clean Water Act (33 USC § 1251 et seq.) (CWA). For the purposes of this chapter:

"Board" means the State Water Control Board. When used outside the context of the promulgation of regulations, including regulations to establish general permits, "board" means the Department of Environmental Quality.

"Business day" means Monday through Friday excluding state holidays.

"Commencement of land disturbance" means the initial disturbance of soils associated with clearing, grading, or excavating activities or other construction activities (e.g., stockpiling of fill material).

"Construction dewatering" means the act of draining or pumping stormwater or groundwater from building foundations, vaults, and trenches, or other similar points of accumulation, including from sediment basins or similar impoundments for maintenance or decommissioning purposes. Construction dewatering does not include temporary pumparounds associated with instream construction activities.

"Construction site" means the land or water area where any land-disturbing construction activity is physically located or conducted, including any adjacent land used or preserved in connection with the land-disturbing activity. The term "construction site" includes construction support activities located on-site or off-site.

"Construction support activity" means a construction-related activity that specifically supports construction and involves land disturbance or pollutant-generating activities of its own and can include activities associated with concrete or asphalt batch plants, equipment staging yards, materials storage areas, excavated material disposal areas, and borrow areas.

"Department" means the Department of Environmental Quality.

"Final stabilization" means that one of the following situations has occurred:

1. All soil disturbing soil-disturbing activities at the construction site have been completed and a permanent vegetative cover has been established on denuded areas not otherwise permanently stabilized. Permanent vegetation shall not be considered established until a ground cover is achieved that is uniform (e.g., evenly distributed), [ provides 75% or more vegetative cover with no significant bare areas, is ] mature enough to survive, and will inhibit erosion.

2. For individual lots in residential construction, final stabilization can occur by either:

a. The homebuilder completing final [ permanent ] stabilization as specified in subdivision 1 of this definition; or

b. The homebuilder establishing temporary soil stabilization, including perimeter controls for an individual lot prior to occupation of the home by the homeowner, and providing written notification to the homeowner of the need for, and benefits of, final [ permanent ] stabilization as specified in subdivision 1 of this definition. The homebuilder shall maintain a copy of the written notification and a signed statement certifying that the information was provided to the homeowner in accordance with the stormwater pollution prevention plan recordkeeping requirements as specified in Part II G 6 of 9VAC25-880-70.

3. For construction projects activities on land used for agricultural purposes, [ final permanent ] stabilization may be accomplished by returning the disturbed land area to its preconstruction agricultural use. Areas disturbed Disturbed areas that were not previously used for agricultural activities, such as buffer strips immediately adjacent to surface waters, and areas that are not being returned to their preconstruction agricultural use shall meet the final [ permanent ] stabilization criteria specified in subdivision 1 or 2 of this definition.

"Immediately" means as soon as practicable, but no later than the end of the next business day, following the day when the land-disturbing construction activities have temporarily or permanently ceased. In the context of this general permit, "immediately" is used to define the deadline for initiating stabilization measures.

"Impaired waters" means surface waters identified as impaired on the 2016 2022 § 305(b)/303(d) Water Quality Assessment Integrated Report.

"Infeasible" means not technologically possible or not economically practicable and achievable in light of best industry practices.

"Initiation of stabilization activities" means:

1. Prepping the soil for vegetative or nonvegetative stabilization;

2. Applying mulch or other nonvegetative product to the exposed area;

3. Seeding or planting the exposed area;

4. Starting any of the above activities listed in subdivision 1, 2, or 3 of this definition on a portion of the area to be stabilized, but not on the entire area; or

5. Finalizing arrangements to have the stabilization product fully installed in compliance with the applicable deadline for completing stabilization.

This list is not exhaustive.

"Measurable storm event" means a rainfall event producing 0.25 inches of rain or greater over 24 hours or snow melt from a snow event producing 3.25 inches or more of snow within a 24-hour period.

"Qualified personnel" means a person knowledgeable in the principles and practices of erosion and sediment and stormwater management controls who possesses the skills to assess conditions at the construction site for the operator that could impact stormwater quality and quantity and to assess the effectiveness of any sediment and erosion control measures or stormwater management facilities selected to control the quality and quantity of stormwater discharges from the construction activity. On or after July 1, 2025, "qualified personnel" shall hold an unexpired [ certificate of competence for Project Dual Inspector certification issued by the department; an unexpired ] Inspector for Erosion and Sediment Control [ certification ] and an unexpired [ certificate of competence for Project ] Inspector for Stormwater Management [ certification ], both issued by the department [ ,; ] a Construction General Permit Qualified Personnel Certificate [ , issued by the department or the Virginia Department of Transportation; ] or an equivalent certification provided by EPA (currently titled Construction Inspection Training Course).

"Stabilized" means land that has been treated to withstand normal exposure to natural forces without incurring erosion damage.

9VAC25-880-10. Purpose.

This general permit regulation governs stormwater discharges from regulated construction activities.For the purposes of this chapter, these discharges are defined as stormwater discharges associated with large construction activity, and stormwater discharges associated with small construction activity. Stormwater discharges associated with other types of industrial activity shall not have coverage under this general permit. This general permit covers only discharges activity, which includes large construction activity, small construction activity, or construction support activity, through a point source to surface waters or through a municipal or nonmunicipal separate storm sewer system to surface waters. Stormwater discharges associated with regulated industrial activity that originate from a construction activities site that [ have has ] been completed and [ where ] the site has undergone final stabilization are not authorized by this general permit.

9VAC25-880-15. Applicability of incorporated references based on the dates that they became effective.

Except as noted, when a regulation of the United States set forth in the Code of Federal Regulations is referenced and incorporated herein in this chapter, that regulation shall be as it exists and has been published in the July 1, 2018 2022, update.

9VAC25-880-20. Effective date of general permit.

This general permit is effective on July 1, 2019 2024. The general permit will expire on June 30, 2024 2029. This general permit is effective for any covered operator upon compliance with all provisions of 9VAC25-880-30.

9VAC25-880-30. Authorization to discharge.

A. Any operator governed by this general permit is authorized to discharge to surface waters of the Commonwealth of Virginia provided that:

1. The operator submits a complete and accurate registration statement in accordance with 9VAC25-880-50, unless not required, and receives acceptance of the registration by the board department;

2. The operator submits any all permit fees, unless not required including all outstanding permit maintenance fees, in accordance with 9VAC25-870-700 9VAC25-875-1290 et seq., unless not required;

3. The operator complies with the applicable requirements of 9VAC25-880-70;

4. The operator obtains approval of:

a. An erosion and sediment control plan from the appropriate Virginia Erosion and Stormwater Management Program (VESMP) authority or Virginia Erosion and Sediment Control Program (VESCP) authority as authorized under the Erosion and Sediment Control Regulations (9VAC25-840), unless the operator receives from the VESCP authority an "agreement in lieu of a plan" as defined in 9VAC25-840-10 9VAC25-875-20 and 9VAC25-875-210, respectively, or [ prepares the an ] erosion and sediment control plan in accordance with annual standards and specifications approved by the department; and

b. Except as specified in 9VAC25-880-70 Part II B 3 b, a stormwater management plan from the appropriate Virginia Stormwater Management Program (VSMP) VESMP authority as authorized under the VSMP Regulation (9VAC25-870), unless the operator receives from the VSMP VESMP authority an "agreement in lieu of a [ stormwater management ] plan" as defined in 9VAC25-870-10 9VAC25-875-20 or [ prepares the a ] stormwater management plan in accordance with annual standards and specifications approved by the department; and

5. The board department has not notified the operator that the discharge is not eligible for coverage in accordance with subsection B of this section.

B. The board department will notify an operator that the discharge is not eligible for coverage under this general permit in the event of any of the following:

1. The operator is required to obtain an individual permit in accordance with 9VAC25-870-410 9VAC25-875-980 B;

2. The operator is proposing discharges to surface waters specifically named in other board regulations that prohibit such discharges;

3. The discharge causes, may reasonably be expected to cause, or contributes to a violation of water quality standards (9VAC25-260);

4. The discharge violates or would violate the antidegradation policy in the Water Quality Standards (9VAC25-260-30); or

5. The discharge is not consistent with the assumptions and requirements of an applicable TMDL approved prior to the term of this general permit.

C. This general permit also authorizes stormwater discharges from construction 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:

1. The support activity is directly related to a construction activity site that is required to have general permit coverage for stormwater discharges of stormwater from construction activities;

2. The support activity is not a commercial operation, nor does it serve multiple unrelated construction activities by different operators sites;

3. The support activity does not operate beyond the completion of the last construction activity it supports;

4. The support activity is identified reported in the registration statement at the time of general permit coverage or reported in a modified registration statement once the need for the support activity is known;

5. Appropriate control measures are identified in a stormwater pollution prevention plan and implemented to address the discharges from the support activity areas; and

6. All applicable [ , ] state, federal, and local approvals are obtained for the support activity.

D. Support activities located off-site are not required to be covered under this general permit. Discharges of stormwater Stormwater discharges from an off-site construction support activities activity may be authorized under another state or VPDES permit. Where stormwater discharges from an off-site construction support activities activity are not authorized under this general permit, the land area of the off-site construction support activity need shall not be included in determining the total land disturbance acreage of the construction activity seeking general permit coverage area of [ development the construction site ] and estimated area to be disturbed reported in the registration statement.

E. 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.

F. Authorized nonstormwater discharges. The following nonstormwater discharges from construction activities are authorized by this general permit:

1. Discharges from emergency firefighting activities;

2. Fire hydrant flushings managed to avoid an instream impact;

3. Water used to wash vehicles or equipment where, provided no soaps, solvents, or detergents have not been are used and the wash water has been is filtered, settled, or similarly treated prior to discharge;

4. Water used to control dust that has been is filtered, settled, or similarly treated prior to discharge;

5. Potable water source, including uncontaminated waterline flushings, managed in a manner to avoid an instream impact;

6. Routine external building wash down where, provided no soaps, solvents, or detergents have not been are used, external building surfaces do not contain hazardous substances, and the wash water has been is filtered, settled, or similarly treated prior to discharge;

7. Pavement wash water where, provided spills or leaks of toxic or hazardous materials have not occurred (or where, unless all spilled or leaked material has been is removed prior to washing); where soaps, solvents, or detergents have not been are not used; and where the wash water has been is filtered, settled, or similarly treated prior to discharge;

8. Uncontaminated air conditioning or compressor condensate;

9. Uncontaminated groundwater or spring water;

10. Foundation or footing drains where, provided flows are not contaminated with process materials such as solvents or contaminated groundwater;

11. Uncontaminated, excavation dewatering, including dewatering of trenches and excavations that have been are filtered, settled, or similarly treated prior to discharge; and

12. Landscape irrigations irrigation.

G. Approval for coverage Coverage under this general permit does not relieve any operator of the responsibility to comply with any other applicable federal, state, or local statute, ordinance, or regulation.

H. Continuation of general permit coverage.

1. Permit coverage shall expire at the end of its term. However, expiring permit coverages are automatically continued if the owner an operator has submitted a complete registration statement at least 60 90 days prior to the expiration date of the permit, or a later submittal date established by the board, which cannot extend beyond the expiration date of the permit department and has paid all past due general permit maintenance fees. The permittee is authorized to continue to discharge until such time as the board department either:

a. Issues coverage to the operator under this general permit; or

b. Notifies the operator that the discharge is not eligible for coverage under this general permit.

2. When the an operator that was covered under the expiring or expired general permit has violated the conditions of that permit, the board department may choose to do any or all of the following:

a. Initiate enforcement action based upon the general permit coverage that has been continued;

b. Issue a notice of intent to deny coverage under the reissued general permit. If the general permit coverage is denied, the operator would then be required to cease discharges authorized by the continued general permit coverage or be subject to enforcement action for operating without a state permit;

c. Issue an individual permit with appropriate conditions; or

d. Take other actions authorized by the VSMP Virginia Erosion and Stormwater Management Regulation (9VAC25-870) (9VAC25-875).

9VAC25-880-40. Delegation of authorities to state and local programs.

A board-approved VSMP department-approved VESMP authority is authorized to administer requirements of this general permit, including but not limited to: (i) registration statement acceptance, (ii) general permit fee collection, and (iii) stormwater management plan review and approval dependent upon conditions established as part of the board approval.

9VAC25-880-50. Registration statement.

A. Deadlines for submitting registration statement. Any operator seeking coverage under this general permit, and that is required to submit a registration statement, shall submit a complete and accurate general VPDES permit registration statement in accordance with this section, which shall serve as a notice of intent for coverage under the general VPDES permit for discharges of stormwater from construction activities.

1. New construction activities.

a. Any operator proposing a new stormwater discharge from construction activities shall submit a complete and accurate registration statement to the VSMP VESMP authority prior to the commencement of land disturbance.

b. Any operator proposing a new stormwater discharge from construction activities in response to a public emergency where the related work requires immediate authorization to avoid imminent endangerment to human health or the environment is authorized to discharge under this general permit, provided that:

(1) The operator submits a complete and accurate registration statement to the VSMP VESMP authority no later than 30 days after commencing the commencement of land disturbance; and

(2) Documentation to substantiate the occurrence of the public emergency is provided with the registration statement.

c. Any operator proposing a new stormwater discharge associated with a small construction activity involving the construction of a single-family detached residential structure, within or outside a common plan of development or sale, is authorized to discharge under this general permit and is not required to submit a registration statement. Any operator proposing a new stormwater discharge associated with the construction of a single-family detached residential structure, within or outside a common plan of development or sale, is not required to submit the department portion of the permit fee.

2. Existing construction activities.

a. Any operator who was authorized to discharge under the expiring or expired 2019 general permit and who intends to continue coverage under this general permit shall:

(1) Submit a complete and accurate registration statement to the VSMP VESMP authority at least 60 90 days prior to the expiration date of the existing permit or a later submittal date established by the board department; and

(2) 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. Any operator with an existing stormwater discharge associated with a small construction activity involving the construction of a single-family detached residential structure, within or outside a common plan of development or sale, that intends to continue coverage under this general permit, is authorized to discharge under this general permit and is not required to submit a registration statement, provided that the operator updates 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. Any operator with an existing stormwater discharge associated with the construction of a single-family detached residential structure, within or outside a common plan of development or sale, that intends to continue coverage under this general permit is not required to submit the department portion of the permit fee.

3. For stormwater discharges from construction activities where the operator changes, the Transfer of ownership. The new operator shall submit a complete and accurate registration statement or transfer of ownership agreement form and any other documents deemed necessary required by the VSMP VESMP authority to the VSMP VESMP authority to demonstrate transfer of ownership and long-term maintenance responsibilities for stormwater management facilities, as required, has occurred prior to assuming operational control over construction site specifications or commencing work on-site the commencement of land disturbance.

4. Late notifications submissions. Operators are not prohibited from submitting registration statements after commencing the commencement of land disturbance. When a late registration statement is submitted, authorization for discharges shall not occur until coverage under the general permit is issued. The VSMP VESMP authority, department, board, and EPA reserve the right to take enforcement action for any unpermitted discharges that occur between the commencement of land disturbance and discharge authorization.

5. Late registration statements. Registration statements for existing facilities covered under subdivision A 2 a of this section will be accepted after the expiration date of this permit, but authorization to discharge will not be retroactive. The VSMP VESMP authority, department, board, and EPA reserve the right to take enforcement action for any unpermitted discharges that occur after existing permit coverage expires and prior to coverage under this permit is approved.

B. Registration statement. The operator shall submit a complete and accurate registration statement to the VSMP VESMP authority that contains the following information:

1. Name, contact, mailing address, telephone number, and email address if available of the construction activity operator. No more than one operator may receive coverage under each registration statement;

NOTE: General permit coverage will be issued to this operator, and the certification in subdivision 17 18 of this subsection shall be signed by the appropriate person associated with this operator as described in Part III K of 9VAC25-880-70.

2. State Corporation Commission entity identification number if the operator is required to obtain an entity identification number;

3. Name and physical location address of the construction activity, when available, to be covered under this general permit, including city or county, and latitude and longitude in decimal degrees (six digits - ten-thousandths place);

3. 4. A legible site map (in an 8.5 inch by 11 inch format) showing the location of the existing or proposed land-disturbing activities for which the operator is seeking permit coverage, the limits of land disturbance, construction entrances, on-site construction support activities, and all water bodies receiving stormwater discharges from the construction site;

4. 5. If off-site construction support activities will be used, the name and physical location address, when available, of all off-site construction support activities, including city or county; latitude and longitude in decimal degrees (six digits - ten-thousandths place); and whether or not the off-site construction support activity will be covered under this general permit or a separate VPDES permit;

5. 6. If excavated material (i.e., fill) will be transported off the construction site for disposal, the name and physical location address, when available, of all off-site excavated material disposal areas, including city or county; latitude and longitude in decimal degrees (six digits - ten-thousandths place); and the contents of the excavated material;

6. 7. Status of the construction activity [ : (i.e., ] federal, state, public, or private [ ) ];

7. 8. Nature of the construction activity (e.g., commercial, industrial, residential, agricultural, oil and gas, etc.);

8. 9. If stormwater management or erosion and sediment control plans for the construction activity have been approved by an entity with department approved annual standards and specifications, the name of the entity with the department approved annual standards and specifications. A copy of the annual a complete and accurate standard and specification entity form shall be submitted with the registration statement;

9. If the construction activity was previously authorized to discharge under the general permit effective July 1, 2014, the 10. The date of erosion and sediment control plan approval for the estimated area to be disturbed by the construction activity during this permit term for construction activities that were authorized to discharge under the expiring or expired 2019 general permit;

10. If the construction activity was previously authorized to discharge under the general permit effective July 1, 2014, whether 11. If land disturbance has commenced for construction activities that were authorized to discharge under the expiring or expired 2019 general permit;

11. 12. Name of the receiving waters and sixth order Hydrologic Unit Code (HUC);

12. If the discharge is through a municipal separate storm sewer system (MS4), the 13. The name of the MS4 municipal separate storm sewer system (MS4) operator if the construction activity discharges to an MS4;

13. 14. Estimated project construction activity start date and completion date;

14. 15. Total land area of development the construction site and estimated area to be disturbed by the construction activity during this the 2024 general permit term (to the nearest one-hundredth of an acre);

15. Whether 16. If the area to be disturbed by the construction activity is part of a larger common plan of development or sale;

16. 17. If nutrient credits are to be will be used to demonstrate compliance comply with the water quality technical design criteria as allowed in 9VAC25-870-65 F requirements [ (9VAC25-875-590) (9VAC25-870-580) ], a letter of availability from an appropriate nutrient bank that nonpoint source nutrient credits are available; 17. A stormwater pollution prevention plan (SWPPP) shall be prepared in accordance with the requirements of the General VPDES Permit for Stormwater Discharges from Construction Activities prior to submitting the registration statement. By signing the registration statement, the operator certifies that the SWPPP has been prepared; and

18. The following 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."

C. A stormwater pollution prevention plan (SWPPP) shall be prepared in accordance with this general permit prior to submitting the registration statement. By signing the registration statement, the operator certifies that the SWPPP has been prepared.

D. The registration statement shall be signed in accordance with 9VAC25-880-70, Part III K of 9VAC25-880-70.

9VAC25-880-60. Termination of general permit coverage.

A. Requirements. The operator of the construction activity shall submit a complete and accurate notice of termination, unless a registration statement was not required to be submitted in accordance with 9VAC25-880-50 A 1 c or A 2 b for [ a stormwater discharge associated with a small construction activity of a ] single-family detached residential [ structures structure, within or outside a common plan of development or sale ], to the VSMP VESMP authority after one or more of the following conditions have been met:

1. Necessary permanent control measures included in the SWPPP for the construction site are in place and functioning effectively and final stabilization has been achieved on all portions of the construction 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;

2. Another operator has assumed control over all areas of the construction site that have not been finally stabilized and obtained coverage for the ongoing discharge;

3. Coverage under an alternative VPDES permit or state other applicable permit has been obtained; or

4. 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.

B. Notice of termination due date and effective date.

1. The notice of termination shall be submitted no later than 30 days after one of the conditions in subsection A of this section is met.

2. Termination of authorization to discharge for the conditions set forth in subdivision A 1 of this section shall become effective upon notification from the department that the provisions of subdivision A 1 of this section have been met or 60 90 days after submittal receipt of a complete and accurate notice of termination, whichever occurs first, unless otherwise notified by the VESMP authority or the department.

3. Authorization to discharge terminates at midnight on the date that the notice of termination is submitted for the conditions set forth in subdivisions A 2 through A 4 of this section unless otherwise notified by the VSMP authority or the department.

C. Notice of termination. The complete notice of termination shall contain the following information:

1. Name, contact, mailing address, telephone number, and email address, if available, of the construction activity operator;

2. Name and physical location address of the construction activity, when available, covered under this general permit, including city or county, and latitude and longitude in decimal degrees (six digits - ten-thousandths place);

3. The general permit registration number;

4. The basis for submission of the notice of termination, pursuant to subsection A of this section;

5. Where applicable, a list of the on-site and off-site permanent control measures (both structural and nonstructural) that were installed to comply with the stormwater management water quality and water quantity technical criteria. For each permanent control measure that was installed, the following information shall be included:

a. The type of permanent control measure installed and the date that it became functional as a permanent control measure;

b. The location of the permanent control measure, including city or county, and latitude and longitude in decimal degrees;

c. The receiving water to which the permanent control measures discharge; and

d. The number of total and impervious acres treated by the permanent control measures (to the nearest one-hundredth of an acre);

6. Where applicable, the following information related to participation in a regional stormwater management plan. For each regional stormwater management facility, the following information shall be included:

a. The type of regional facility to which the site contributes;

b. The location of the regional facility, including city or county, and latitude and longitude in decimal degrees; and

c. The number of total and impervious site acres treated by the regional facility (to the nearest one-hundredth of an acre);

7. Where applicable, the following information related to perpetual nutrient credits that were acquired in accordance with § 62.1-44.15:35 of the Code of Virginia:

a. The name of the nonpoint nutrient credit generating entity from which perpetual nutrient credits were acquired; and

b. The number of perpetual nutrient credits acquired (lbs. pounds per acre per year).

8. A construction record drawing in a format as specified by the VSMP VESMP authority for permanent long-term stormwater management facilities in accordance with 9VAC25-870-55 D 9VAC25-875-535 appropriately sealed and signed by a professional registered in the Commonwealth of Virginia, certifying that the stormwater management facilities have been constructed in accordance with the approved plan;

9. Where applicable, evidence that the signed Stormwater Management Maintenance Agreement has been recorded in an instrument within the local land records;

10. For individual lots in residential construction only when the homebuilder established temporary soil stabilization, a signed statement from the permittee that the new owner, if not the same as the permittee, has been notified of the final stabilization requirements; and

11. The following certification: "I certify under penalty of law that I have read and understand this notice of termination 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."

D. The notice of termination shall be signed in accordance with 9VAC25-880-70, Part III K of 9VAC25-880-70.

E. Termination by the board department. The board department may terminate coverage under this general permit during its term and require application for an individual permit or deny a general permit renewal application on its own initiative in accordance with the Virginia Erosion and Stormwater Management Act (Article 2.3 (§ 62.1-44.15:24 et seq.) of Chapter 3.1 of Title 62.1 of the Code of Virginia), this chapter, and the VSMP Virginia Erosion and Stormwater Management Regulation, 9VAC25-870 9VAC25-875.

9VAC25-880-70. General permit.

Any operator whose registration statement is accepted by the board department will receive the following general permit and shall comply with the requirements contained therein in this general permit and be subject to all requirements of 9VAC25-870 9VAC25-875.

[ Any operator with a stormwater discharge associated with a small construction activity of a single-family detached residential structure, within or outside a common plan of development or sale, is authorized to discharge under the following general permit and shall comply with the requirements contained in this general permit and be subject to all requirements of 9VAC25-875. ]

General Permit No.: VAR10

Effective Date: July 1, 2019 2024

Expiration Date: June 30, 2024 2029

GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION ACTIVITIES

AUTHORIZATION TO DISCHARGE UNDER THE VIRGINIA EROSION AND STORMWATER MANAGEMENT PROGRAM AND THE VIRGINIA EROSION AND STORMWATER MANAGEMENT ACT

In compliance with the provisions of the Clean Water Act, as amended, and pursuant to the Virginia Erosion and 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.

[ For stormwater discharge associated with a small construction activity of a single-family detached residential structure, within or outside a common plan of development or sale, the authorized discharge shall be in accordance with 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. ]

Part I

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 construction 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 site that is required to have general permit coverage for discharges of stormwater from construction activities;

b. The support activity is not neither a commercial operation, nor does it serve serves multiple unrelated construction activities by different operators sites;

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 or reported in a modified registration statement once the need for the support activity is known;

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 construction site after construction activities have been completed and the construction site, including any construction 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 are covered under an individual permit or required to obtain coverage under an alternative general permit.

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 2022 § 305(b)/303(d) Water Quality Assessment Integrated Report for Benthic Macroinvertebrates Bioassessments 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), including all surface waters within the Chesapeake Bay Watershed, 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 2022 § 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 2019 ], 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 Part ] I A 2, [ I ] 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 or cleanout of stucco, paint, form release oils, curing compounds, and other construction materials;

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 emergency firefighting activities;

2. Fire hydrant flushings, managed to avoid an instream impact;

3. Waters used to wash vehicles or equipment where, provided no soaps, solvents, or detergents have not been are used and the wash water has been is filtered, settled, or similarly treated prior to discharge;

4. Water used to control dust that has been is 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 provided no soaps, solvents or detergents have not been are used, external building surfaces do not contain hazardous substances, and the wash water has been is filtered, settled, or similarly treated prior to discharge;

7. Pavement wash waters where, provided spills or leaks of toxic or hazardous materials have not occurred (or where, unless all spilled or leaked material has been removed prior to washing); where soaps, solvents, or detergents have not been are not used; and where the wash water has been is 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, provided flows are not contaminated with process materials such as solvents or contaminated groundwater;

11. Uncontaminated excavation dewatering, including dewatering of trenches and excavations that have been are 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 Virginia Erosion and Stormwater Management (VESMP) authority after one or more of the following conditions have been met:

a. Necessary permanent control measures included in the SWPPP for the construction site are in place and functioning effectively and final stabilization has been achieved on all portions of the construction site for which the operator has operational control. When applicable, [ long term 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 construction site that have not been finally stabilized and obtained coverage for the ongoing discharge;

c. Coverage under an alternative VPDES permit or state other applicable 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 90 days after submittal of a complete and accurate notice of termination in accordance with 9VAC25-880-60 C, whichever occurs first, unless otherwise notified by the VESMP or the department.

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. 4. The notice of termination shall be signed in accordance with Part III K 1 and include the required certification in accordance with Part III K 4 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 VESMP 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

c. Submit an individual permit application in accordance with 9VAC25-870-410 9VAC25-875-980 B 3.

H. All written responses required under this chapter general permit shall include a signed certification consistent with Part III K.

Part II
STORMWATER POLLUTION PREVENTION PLAN

A. Stormwater pollution prevent prevention plan.

1. 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 construction support activity, covered by this general permit. [ For a small construction activity of a single-family detached residential structure, within or outside a common plan of development or sale, an SWPPP shall be developed and implemented prior to the initiation of the construction activity, including any construction support activity covered by this general permit.

2. ] 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 an ] 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. 3. ] 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 construction site under § 311 of the federal Clean Water Act or best management practices (BMP) programs otherwise required for the facility construction site 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. 4. ] Any operator that was authorized to discharge under the general permit effective July 1, [ 2014 2019 ], 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 this general VPDES permit for discharges of stormwater from construction activities;

b. Upon receipt, a copy of the notice of coverage under the this 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 map of the construction site plan identifying:

(1) Directions of stormwater flow Existing and proposed drainage patterns on the construction site and approximate slopes anticipated before and after major grading activities;

(2) Limits of clearing and grading (i.e., land disturbance) including steep slopes and natural buffers around surface waters that will not be disturbed remain undisturbed;

(3) Locations of major structural and nonstructural control measures, including sediment basins and traps, perimeter dikes and diversions, 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 construction 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 (vii) areas where polymers, flocculants, or other stormwater treatment chemicals will be used or stored; and

(7) When applicable, the location of the on-site rain gauge or the methodology established in consultation with the VSMP VESMP authority used to identify measurable storm events for inspection as allowed by Part II G 2 a (1) (ii) or 2 b (2).

2. Erosion and sediment control plan [ for the construction activity authorized by this general permit ].

a. An erosion and sediment control plan designed and approved in accordance with the Virginia Erosion and Sediment Control Stormwater Management Regulations (9VAC25-840) (9VAC25-875), an "agreement in lieu of a plan" as defined in 9VAC25-840-10 from the VESCP authority 9VAC25-875-20, or an erosion and sediment control plan prepared in accordance with annual department-approved 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, shall be implemented to:

(1) Control the volume and velocity of stormwater runoff within the construction 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;

(3) Minimize the amount of soil exposed during the construction activity;

(4) Minimize the disturbance of steep slopes;

(5) Minimize sediment discharges from the construction 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 construction 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 infiltration would be inadvisable due to the underlying geology (e.g., karst topography) and groundwater contamination concerns or infeasible due to site conditions;

(7) Minimize soil compaction and, unless infeasible, preserve topsoil. Minimizing soil compaction is not required where the intended function of a specific area of the construction site dictates that it be compacted;

(8) Unless infeasible, preserve topsoil. Preserving topsoil is not required where the intended function of a specific area of the construction site dictates that the topsoil be disturbed or removed;

(9) Ensure the initiation of stabilization activities, as defined in 9VAC25-880-1, of disturbed areas occurs immediately whenever any clearing, grading, excavating, or other land-disturbing activities have permanently ceased on any portion of the construction site, or temporarily ceased on any portion of the construction site and will not resume for a period exceeding 14 days; and

(9) (10) 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 [ for the construction activity authorized by this general permit ].

a. Except for those projects identified in Part II B 3 b, a stormwater management plan approved by the VSMP authority as authorized under in accordance with the Virginia Erosion and Stormwater Management Program (VSMP) Regulation (9VAC25-870), (9VAC25-875) or an "agreement in lieu of a stormwater management plan" as defined in 9VAC25-870-10 from the VSMP authority, 9VAC25-875-20 or a stormwater management plan prepared in accordance with annual department-approved standards and specifications approved by the department.

b. For any operator meeting the conditions of 9VAC25-870-47 9VAC25-875-480 B of the VSMP regulation Virginia Erosion and Stormwater Management 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 VESMP authority, state, and federal requirements, and any necessary permits must be obtained.

4. Pollution prevention plan [ for the construction activity authorized by this general permit ]. 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;

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 storm drain inlets or conveyance and constructed or natural site drainage features 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, disposed of through infiltration, or otherwise disposed of on the ground;

(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 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 in this subdivision 4; and

(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 2022 § 305(b)/303(d) Water Quality Assessment Integrated Report for Benthic Macroinvertebrates Bioassessments or (ii) with an applicable TMDL wasteload allocation established and approved prior to the term of this general permit for sediment for or a sediment-related parameter (i.e., total suspended solids or turbidity) or nutrients (i.e., nitrogen or phosphorus), including all surface waters within the Chesapeake Bay Watershed, the operator shall:

a. Identify the impaired waters, approved TMDLs, and pollutants of concern in the SWPPP; and

b. Provide clear direction documentation 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 construction 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 2022 § 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:

a. Identify the impaired waters, approved TMDLs, and pollutant of concern in the SWPPP;

b. Implement the approved erosion and sediment control plan in accordance with Part II B 2;

c. Dispose of waste materials in compliance with applicable state, federal, and local requirements; and

d. Implement a modified inspection schedule in accordance with Part II G 2 a.

7. SWPPP requirements for discharges to exceptional waters. For discharges to surface waters identified in 9VAC25-260-30 A 3 c as an exceptional water, the operator shall:

a. Identify the exceptional surface waters in the SWPPP; and

b. Provide clear direction documentation 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 construction 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. SWPPP requirements for construction dewatering discharges to sediment impaired waters or exceptional waters. Dewatering discharges of uncontaminated stormwater or groundwater from footers or foundations of a single-family detached residential structure are exempt from the requirements of this subdivision 8, provided that such discharges are not discharged directly to surface waters. For construction dewatering discharges to surface waters (i) identified as impaired in the 2022 § 305(b)/303(d) Water Quality Assessment Integrated Report for Benthic Macroinvertebrates Bioassessments; (ii) with an applicable TMDL wasteload allocation established and approved prior to the term of this general permit for sediment or a sediment-related parameter (i.e., total suspended solids or turbidity), including all surface waters within the Chesapeake Bay Watershed; or (iii) identified in 9VAC25-260-30 A 3 c as an exceptional water, the operator shall undertake one of the following methods for controlling and documenting construction dewatering discharges:

a. Turbidity benchmark option 1:

(1) Identify the location of all construction dewatering discharges in the SWPPP;

(2) Select, install, implement, and maintain control measures at each dewatering location that minimize pollutants, including suspended solids, in construction dewatering discharges prior to discharging into a stormwater conveyance system or surface water; and

(3) Provide documentation in the SWPPP that:

(a) Sample frequency. At least one grab sample shall be collected from each construction dewatering discharge when the first discharge at that location occurs, daily thereafter until the dewatering discharge stops, and after any installation of new controls or routine maintenance activity of existing controls. An upstream grab sample shall be collected from the receiving stream;

(b) Sample timing. Grab samples of the construction dewatering discharge shall be collected during the first 15 minutes of the construction dewatering discharge and daily thereafter until the dewatering discharge stops. Upstream grab samples of the receiving stream shall be collected within 15 minutes of the corresponding construction dewatering discharge sample;

(c) Sample location. Grab samples shall be collected after the construction dewatering water has been filtered, settled, or similarly treated and prior to its discharge into a stormwater conveyance system or surface water;

(d) Test methods. Grab samples taken as required by this subdivision 8 shall be measured using a turbidity meter that reports results in nephelometric turbidity units (NTUs) or formazin turbidity units (FTUs), and [ conduct ] a turbidity meter calibration verification [ shall be conducted ] prior to each day's use, consistent with manufacturer recommendations;

(e) Visual monitoring. All dewatering discharges shall be visually monitored for changes in the characterization of effluent discharge;

(f) Corrective action. If (i) any turbidity measurement of the construction dewatering discharge exceeds the upstream grab sample of the receiving stream by more than [ 10 50 ] NTUs/FTUs or (ii) visual monitoring indicates a change in the characterization of effluent discharge, corrective action shall be taken in accordance with Part II H 2 of this general permit; and

(g) Recordkeeping. Turbidity monitoring information (i.e., location, date, sample collection time, and turbidity measurement) and any necessary corrective actions taken shall be recorded in the SWPPP; or

b. Turbidity benchmark option 2:

(1) Identify the location of all construction dewatering discharges in the SWPPP;

(2) Select, install, implement, and maintain control measures at each dewatering location that minimize pollutants, including suspended solids, in construction dewatering discharges prior to discharging into a stormwater conveyance system or surface water; and

(3) Provide documentation in the SWPPP that:

(a) Sample frequency. At least one grab sample shall be collected from each construction dewatering discharge when the first discharge at that location occurs, daily thereafter until the dewatering discharge stops, and after any installation of new controls or routine maintenance activity of existing controls. Grab samples shall be tested to confirm a turbidity measurement of equal to or less than [ 50 150 ] NTUs/FTUs from the construction dewatering discharge;

(b) Sample timing. Grab samples of the construction dewatering discharge shall be collected during the first 15 minutes of the construction dewatering discharge and daily thereafter until the dewatering discharge stops;

(c) Sample location. Grab samples shall be collected after the construction dewatering water has been filtered, settled, or similarly treated and prior to its discharge into a stormwater conveyance system or surface water;

(d) Test methods. Grab samples taken as required by this subdivision 8 shall be measured using a turbidity meter that reports results in nephelometric turbidity units (NTUs) or formazin turbidity unit (FTUs), and [ conduct ] a turbidity meter calibration verification [ shall be conducted ] prior to each day’s use, consistent with manufacturer recommendations;

(e) Visual monitoring. All dewatering discharges shall be visually monitored for changes in the characterization of effluent discharge;

(f) Corrective action. If (i) any turbidity measurement of the construction dewatering discharge exceeds [ 50 150 ] NTUs/FTUs or (ii) visual monitoring indicates a change in the characterization of effluent discharge, corrective action shall be taken in accordance with Part II H 2 of this general permit; and

(g) Recordkeeping. Turbidity monitoring information (i.e., location, date, sample collection time, and turbidity measurement) and any necessary corrective actions taken shall be recorded in the SWPPP [ .; or

c. Turbidity benchmark option 3:

(1) Identify the location of all construction dewatering discharges in the SWPPP;

(2) Select, install, implement, and maintain control measures at each dewatering location that minimize pollutants, including suspended solids, in construction dewatering discharges prior to discharging into a stormwater conveyance system or surface water; and

(3) Provide documentation in the SWPPP that:

(a) Sample frequency. At least one grab sample shall be collected from each construction dewatering discharge when the first discharge at that location occurs, daily thereafter until the dewatering discharge stops, and after any installation of new controls or routine maintenance activity of existing controls. Grab samples shall be tested to confirm a turbidity measurement of equal to or less than 50 NTUs/FTUs, based on a weekly average, from the construction dewatering discharge;

(b) Sample timing. Grab samples of the construction dewatering discharge shall be collected during the first 15 minutes of the construction dewatering discharge and daily thereafter until the dewatering discharge stops:

(c) Sample location. Grab samples shall be collected after the construction dewatering water has been filtered, settled, or similarly treated and prior to its discharge into a stormwater conveyance system or surface water;

(d) Test methods. Grab samples taken as required by this subdivision 8 shall be measured using a turbidity meter that reports results in NTUs or FTUs, and a turbidity meter calibration verification shall be conducted prior to each day's use, consistent with manufacturer recommendations;

(e) Visual monitoring. All dewatering discharges shall be visually monitored for changes in the characterization of effluent discharge;

(f) Corrective action. If (i) the weekly average of the turbidity measurements of the construction dewatering discharge exceeds 50 NTUs/FTUs or (ii) visual monitoring indicates a change in the characterization of effluent discharge, corrective action shall be taken in accordance with Part II H 2. The weekly average is the sum of all turbidity samples taken during a monitoring week (starting on Monday and ending on Sunday) divided by the number of samples measures during that week; and

(g) Recordkeeping. Turbidity monitoring information (i.e., location, date, sample collection time, and turbidity measurement) and any necessary corrective actions taken shall be recorded in the SWPPP.

d. Request for alternative benchmark threshold:

(1) At any time prior to or during coverage under this permit, a request may be submitted to the department to approve a benchmark that is higher than turbidity benchmark options 1, 2, and 3 if information is available demonstrating the higher number is the same as the receiving water's water quality standard for turbidity. To request approval of an alternate benchmark, the operator must submit the following to the department:

(a) The current turbidity water quality standard that applies to the receiving water; and

(b) Information on the natural or background turbidity level to determine the specific standard for the receiving water, including available data that can be used to establish the natural turbidity levels of the receiving water.

(2) The department will notify the operator of its decision on whether to approve the requested alternate benchmark within 30 days. Until the department approves an alternate benchmark, the operator is required to use the option 1, option 2, or option 3 turbidity benchmark and take any required corrective actions if an exceedance occurs. ]

9. Identification of qualified personnel. The name, [ phone telephone ] number, and qualifications of the qualified personnel conducting inspections required by this general permit.

9. Delegation of authority 10. Duly authorized representatives. The SWPPP shall include the names of individuals or positions with delegated authority, in accordance with Part III K, duly authorized to sign inspection reports or modify the SWPPP on behalf of the operator. Any authorization shall be signed and dated in accordance with Part III K 2 and shall include the required certification in accordance with Part III K 4.

10. 11. SWPPP signature and certification. The SWPPP shall be signed and dated in accordance with Part III K 2 of this general permit and shall include the required certification in accordance with Part III K 4 of this general permit.

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 VESMP authority, or department is necessary for the control measure, revisions to the SWPPP shall be completed no later than seven calendar five business days following approval. Implementation of these additional or modified control measures shall be accomplished as described in Part II H.

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 five business 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 construction 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 2 and shall include the required certification in accordance with Part III K 4.

D. Public notification. Upon commencement of land disturbance construction activities, the operator shall post conspicuously a copy of the notice of coverage letter at a publicly accessible location near the main entrance of the construction activity site. For linear projects, the operator shall post a copy of the notice of coverage letter at a publicly accessible location near an active part of the construction project site (e.g., where a pipeline crosses a public road). The copy of the notice of coverage letter shall be visible such that it can be readily viewed from a public right-of-way. 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.

2. The operator shall make the SWPPP and all amendments, modifications, and updates available upon request to the department, the VSMP VESMP 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 the operator's 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.

1. All control measures shall be properly maintained in effective operating condition in accordance with good engineering practices and, where applicable, manufacturer specifications.

2. If a site inspection required by Part II G identifies a control measure that is not operating effectively or needs routine maintenance, corrective actions or routine maintenance shall be completed as soon as practicable, but no later than seven five business days after discovery or a longer period as established by the VSMP VESMP authority, to maintain the continued effectiveness of the control measures.

2. 3. If the operator must make the same repairs more than two times to the same control at the same location, even if the fix can be completed by the close of the next business day, the operator shall either:

a. Complete work to fix any subsequent repeat occurrences of this same problem under the corrective action procedures in Part II H, including keeping any records of the condition and how it was corrected under Part II C; or

b. Document in the inspection report under Part II G why the specific reoccurrence of this same problem should still be addressed as a routine maintenance fix.

4. 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 five business days after discovery or a longer period as established by the VSMP VESMP 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. Qualified personnel may be a person on the operator's staff or a third party hired to conduct such inspections.

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 II 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 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.

(a) A storm event that produces 0.25 inches or more of rain within a 24-hour period on the first day of the storm and continues to produce 0.25 inches or more of rain on subsequent days. The operator is required to conduct an inspection within 24 hours of the first day of the storm and within 24 hours after the last day of the storm that produces 0.25 inches or more of rain.

(b) A discharge caused by snowmelt [ from a snow event producing 3.25 inches or more of snow within a 24-hour period ]. The operator is required to conduct one inspection once the discharge of snowmelt occurs. Additional inspections are only required if, following the discharge from the first snowmelt, there is a discharge from a separate storm event.

c. Where areas have been temporarily stabilized or land-disturbing construction 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 at a minimum:

(1) a. Record the date and time of the inspection and, when applicable, the date and rainfall or snowfall amount of the last measurable storm event;

(2) b. 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) c. Record any land-disturbing construction activities that have occurred outside of the approved erosion and sediment control plan;

(4) d. Inspect all stormwater discharge locations at the construction site. If a stormwater discharge is occurring during the inspection, observe and document the visual quality and characteristics of the discharge, including color; odor; floating, settled, or suspended solids; foam; oil sheen; and other indicators of stormwater pollutants;

e. Inspect all construction dewatering discharge locations at the construction site, if applicable. If a construction dewatering discharge is occurring during the inspection, observe and document the visual quality and the characteristics of the discharge, including color; odor; floating, settled, or suspended solids; foam; oil sheen; and other indicators of pollutants;

f. 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) (1) All perimeter erosion and sediment controls, such as silt fence;

(b) (2) Soil stockpiles, when applicable, and borrow areas for stabilization or sediment trapping measures;

(c) (3) Completed earthen structures, such as dams, dikes, ditches, and diversions for stabilization and effective impoundment or flow control;

(d) (4) Cut and fill slopes;

(e) (5) Sediment basins and traps, sediment barriers, and other measures installed to control sediment discharge from stormwater;

(f) (6) Temporary or permanent channels, flumes, or other slope drain structures installed to convey concentrated runoff down cut and fill slopes;

(g) (7) 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) (8) Construction vehicle access routes that intersect or access paved or public roads for minimizing sediment tracking;

(5) g. Inspect areas that have reached final grade or that will remain dormant for more than 14 days to ensure:

(a) (1) Initiation of stabilization activities have occurred immediately, as defined in 9VAC25-880-1; and

(b) (2) Stabilization activities have been completed within seven days of reaching grade or stopping work;

(6) h. 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:

(a) (1) 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) (2) Sediment laden or turbid flows of stormwater that have not been filtered or settled to remove sediments prior to discharge;

(c) (3) 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) (4) Sediment deposition on any property (including public and private streets) outside of the construction activity covered by this general permit;

(e) (5) Required stabilization has not been initiated or completed or is not effective on portions of the construction site;

(f) (6) 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) (7) 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) (8) Land disturbance or sediment deposition outside of the approved area to be disturbed;

(7) i. Inspect pollutant generating activities identified in the pollution prevention plan for the proper implementation, maintenance, and effectiveness of the procedures and practices;

(8) j. Identify and report any pollutant generating activities not identified in the pollution prevention plan; and

(9) k. 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 or snowfall amount of the last measurable storm event;

b. Summarized findings of the inspection;

c. The locations, visual quality, and characteristics of all stormwater discharges, when occurring;

d. The locations, visual quality, and characteristics of all construction dewatering discharges, if applicable;

e. The locations of prohibited discharges;

d. f. The locations of control measures that require routine maintenance;

e. g. The locations of control measures that failed to operate as designed or proved inadequate or inappropriate for a particular location;

f. h. The locations where any evidence identified under Part II G 3 a (6) h exists;

g. i. The locations where any additional control measure is needed;

h. j. A list of corrective actions required (including any changes to the SWPPP that are necessary) as a result of the inspection or to maintain permit compliance;

i. k. Documentation of any corrective actions required from a previous inspection that have not been implemented;

l. Any incidents of noncompliance. If none, the report shall contain a certification that the construction activity is in compliance with the SWPPP and this general permit;

m. The required certification in accordance with Part III K 4 of this general permit; and

j. n. The date and signature of the qualified personnel and the operator or its duly authorized representative in accordance with Part III K 2 of this general permit.

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.

1. [ The Except as required in Part II H 2, the ] operator shall implement the corrective actions identified as a result of an inspection as soon as practicable but no later than seven five business days after discovery or a longer period as approved by the VSMP VESMP authority. If approval of a corrective action by a regulatory authority (e.g., VSMP VESMP 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. When [ using turbidity benchmark option 1, any turbidity measurement of the construction dewatering discharge exceeds the selected benchmark option or visual monitoring indicates a change in the characteristics of effluent discharge, as outlined in Part II B 8, ] the operator shall [ implement corrective actions when any construction dewatering discharge turbidity measurement exceeds the upstream grab sample of the receiving stream by 50 NTUs/FTUs or where visual monitoring indicates a change in the characteristics of effluent discharge. The operator shall ]:

a. [ Cease Immediately cease ] the construction dewatering discharge at the location that exceeds [ upstream grab sample the turbidity benchmark ] or where visual monitoring indicates a change in the characterization of effluent discharge;

b. Determine whether the construction dewatering controls are operating effectively or need routine maintenance or if an additional or alternate control measure is necessary; and

c. Make any necessary adjustments, additions, repairs, or replacements to the construction dewatering controls.

Once these corrective action steps are completed and any necessary adjustments, additions, repairs, or replacements are made, the operator may resume its construction dewatering discharge and shall sample for turbidity within 15 minutes of the construction dewatering discharge commencing. [ 3. When using turbidity benchmark option 2, the operator shall implement corrective actions when any construction dewatering discharge turbidity measurement exceeds 50 NTUs/FTUs or visual monitoring of any construction dewatering control measure indicates a change in the characterization of effluent discharge or a need for adjustments, additions, repairs, or replacements to control measures. The operator shall: a. Cease the construction dewatering discharge at the location where visual monitoring indicates a change in the characterization of effluent discharge or a need for adjustments, additions, repairs, or replacements to control measures; b. Determine whether the construction dewatering controls are operating effectively, need routine maintenance, or need replacement or if an additional or alternate control measure is necessary; and
c. Make any necessary adjustments, additions, repairs, or replacements to the construction dewatering controls. Once these corrective action steps are completed and any necessary adjustments, additions, repairs, or replacements are made, the operator may resume its construction dewatering discharge and shall sample for turbidity within 15 minutes of the construction dewatering discharge commencing No additional corrective action items are required beyond recording the results in the SWPPP ].

[ 4. 3. ] The operator may be required to remove accumulated sediment deposits located outside of the construction activity site covered by this general permit as soon as practicable in order to minimize environmental impacts.

[ 5. 4. ] The operator shall notify the VSMP VESMP 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.

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 Part III A, B, and C, as appropriate.

A. Monitoring.

1. Samples and measurements taken for the purpose of monitoring shall be representative of the monitoring activity.

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 (1VAC30-45 or 1VAC30-46).

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 department.

C. Reporting monitoring results.

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 that 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 that the board department 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 VESMP 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 the operator's discharge on the quality of surface waters, or such other information as may be necessary to accomplish the purposes of the [ CWA Clean Water Act ] and the Virginia Erosion and Stormwater Management Act. The operator shall also furnish to the board, department, EPA, or VSMP VESMP 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 that discharges or causes or allows a discharge that may reasonably be expected to enter surface waters, shall notify the Department of Environmental Quality department and the VESMP authority 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 VESMP authority within five calendar 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;

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 VESMP 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 construction site 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 VESMP 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 VESMP authority within five calendar days of discovery of the discharge in accordance with Part III I 2. 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 that may adversely affect surface state waters or may endanger public health.

1. An oral A report to the department and the VSMP VESMP 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 subsection:

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;

b. The period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and

c. Steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance.

The department may waive the written report on a case-by-case basis for reports of noncompliance under Part III I if the oral report has been received within 24 hours and no adverse impact on surface waters has been reported.

3. The operator shall report all instances of noncompliance not reported under Part III I 1 or 2 in writing as part of the SWPPP. The reports shall contain the information listed in Part III I 2.

NOTE: 4. The immediate (within 24 hours) reports required in Part III G, H, and I shall may be made to the department and the VSMP VESMP authority. Reports may be made by telephone, [ or ] email, or online at [ https://www.deq.virginia.gov/get-involved/pollution-response https://www.deq.virginia.gov/our-programs/pollution-response ]. 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. 5. 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 VESMP 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 VESMP 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 9VAC25-875-990; or

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 VESMP authority of any planned changes in the permitted facility or activity, which that may result in noncompliance with state permit requirements.

3. The operator may continue construction activities based on the information provided in the original registration statement and SWPPP but must wait until the review period has ended before commencing or continuing construction activities on any portion of the construction site that would be affected by any of the planned changes or modifications. [ Any operator that chooses to proceed with unapproved construction activities while plans are being reviewed is proceeding at its own risk and subject to compliance actions if the plan is determined to be inadequate. ]

K. Signatory requirements.

1. Registration statement and notice of termination. All registration statements and notices of termination 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 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 VESMP 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 VESMP authority as the administering entity for the board department prior to or together with any reports or information to be signed by an authorized representative.

4. Certification. Any person signing a document under Part III K 1 or 2 shall make the following certification:

"I certify under penalty of law that I have read and understand this document and that this document and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant 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 with this general permit constitutes a violation of the Virginia Erosion and 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 Erosion and 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 of permit coverage; 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 90 days before the expiration date of the existing general permit, unless permission for a later date has been granted by the board department. The board department 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 neither conveys any property rights in either real or personal property or any exclusive privileges, nor does it authorize authorizes 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" ( under Part III U) and "upset" ( under 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.

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 9VAC25-875-850, means the intentional diversion of waste streams from any portion of a treatment facility. The operator may allow any bypass to occur that does not cause effluent limitations to be exceeded, but only if it also is for essential maintenance to ensure efficient operation. These bypasses are not subject to the provisions of Part III U 2 and U 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.

V. Upset.

1. An "upset," as defined in 9VAC25-870-10 9VAC25-875-850, 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 3 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. 3. 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. 4. 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 VESMP 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 Erosion and Stormwater Management Act, any substances or parameters at any location.

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 in this general permit ] shall make an inspection unreasonable during an emergency.

X. State permit Permit actions. State permit 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 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 Erosion and 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 construction 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.