Any owner whose registration statement is accepted by the department, or that is automatically authorized to discharge under this permit, shall comply with the requirements of the general permit and be subject to all requirements of 9VAC25-31-170 B of the VPDES Permit Regulation. Not all of Part I A of the general permit will apply to every permittee. The determination of which provisions apply will be based on the type of contamination at the individual site and the nature of the waters receiving the discharge. Part I B and all of Part II apply to all permittees.
General Permit No.: VAG83
Effective Date: March 1, 2023
Expiration Date: February 29, 2028
VPDES GENERAL PERMIT FOR DISCHARGES FROM GROUNDWATER REMEDIATION OF CONTAMINATED SITES, DEWATERING ACTIVITIES OF CONTAMINATED SITES, AND HYDROSTATIC TESTS
AUTHORIZATION TO DISCHARGE UNDER THE VIRGINIA POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMIT PROGRAM AND THE VIRGINIA STATE WATER CONTROL LAW
In compliance with the provisions of the Clean Water Act, as amended, the State Water Control Law and regulations adopted pursuant thereto, the owner is authorized to discharge to surface waters within the boundaries of the Commonwealth of Virginia, except to designated public water supplies or waters specifically named in other board regulations which prohibit such discharges.
The authorized discharge shall be in accordance with the information submitted with the registration statement, this cover page, Part I - Effluent Limitations and Monitoring Requirements, and Part II - Conditions Applicable to All VPDES Permits, as set forth in this general permit.
If there is any conflict between the requirements of a department approved cleanup plan and this permit, the requirements of this permit shall govern.
The following types of short term projects (14 consecutive calendar days or less in duration) are authorized under this permit:
Effluent limits for short term projects correspond to the type of contamination at the project site and are given in Tables A 3 through A 6 below. The sampling frequency for these projects shall be once per discharge. Discharge monitoring reports for these projects are not required to be submitted to the department, but shall be retained by the owner for a period of at least three years from the completion date of the project.
Owners shall notify the department's regional office in writing within 14 days of the completion of the project discharge. The notification shall include the owner's name and address, the type of discharge that occurred, the physical location of the project work, and the receiving stream. If the discharge is to a municipal separate storm sewer system (MS4), the owner shall also notify the MS4 owner within 14 days of the completion of the discharge.
During the period beginning with the permittee's coverage under this general permit and lasting until the permit's expiration date, the permittee is authorized to discharge from outfall serial number xxxx. Samples taken in compliance with the monitoring requirements specified below shall be taken at the following location: outfall from the final treatment unit prior to mixing with any other waters.
Such discharges shall be limited and monitored by the permittee as specified below:
EFFLUENT CHARACTERISTICS | DISCHARGE LIMITATIONS | MONITORING REQUIREMENTS(2) | ||
Instantaneous Minimum | Instantaneous Maximum | Frequency | Sample Type | |
Flow (GPD) | NA | NL | 1/discharge | Estimate |
pH (standard units) | 6.0 | 9.0 | 1/discharge | Grab |
Total Petroleum Hydrocarbons (TPH, mg/l) (1) | NA | 15 | 1/discharge | Grab |
Total Organic Carbon (TOC, mg/l) | NA | NL | 1/discharge | Grab |
Total Residual Chlorine (TRC, mg/l)(3) | NA | 0.011(3) | 1/discharge | Grab |
Total Suspended Solids (TSS) | NA | NL | 1/discharge | Grab |
NL = No limitation, monitoring required NA = Not applicable | ||||
The equipment being tested shall be substantially free of debris, raw material, product, or other residual materials. The discharge flow shall be managed to control the volume and velocity of the discharge, including peak flow rates and total volume, to minimize erosion at outlets, and to minimize downstream channel and stream bank erosion. | ||||
(1)TPH is the sum of individual gasoline range organics and diesel range organics or TPH-GRO and TPH-DRO to be measured by EPA SW 846 Method 8015C (2000) or EPA SW 846 Method 8015C (2007) for gasoline and diesel range organics, or by EPA SW 846 Methods 8260B (1996) and 8270D (2014) or 8270E (2018). | ||||
(2)Discharge monitoring reports for hydrostatic test discharges are not required to be submitted to the department but shall be retained by the owner for a period of at least three years from the completion date of the hydrostatic test. Owners shall notify the department's regional office in writing within 14 days of the completion of the hydrostatic test discharge. The notification shall include the owner's name and address, the type of hydrostatic test that occurred, the physical location of the test work, and the receiving stream. (3)Total residual chlorine limitation of 0.011 mg/l and chlorine monitoring only apply to discharges of test water that have been chlorinated or come from a chlorinated water supply. All data below the quantification level (QL) of 0.1 mg/L shall be reported as "<QL." |
During the period beginning with the permittee's coverage under this general permit and lasting until the permit's expiration date, the permittee is authorized to discharge from outfall serial number xxxx. Samples taken in compliance with the monitoring requirements specified below shall be taken at the following location: outfall from the final treatment unit prior to mixing with any other waters.
Such discharges shall be limited and monitored by the permittee as specified below:
EFFLUENT CHARACTERISTICS | DISCHARGE LIMITATIONS | MONITORING REQUIREMENTS | ||
Instantaneous Minimum | Instantaneous Maximum | Frequency | Sample Type | |
Flow (GPD) | NA | NL | (4) | Estimate |
Benzene (µg/l)(1) | NA | 5.8 | (4) | Grab |
Toluene (µg/l)(1) | NA | 43 | (4) | Grab |
Ethylbenzene (µg/l)(1) | NA | 4.3 | (4) | Grab |
Total Xylenes (µg/l)(1) | NA | 33 | (4) | Grab |
MTBE (methyl tert-butyl ether) (µg/l)(1) | ||||
Freshwaters not listed as public water supplies and saltwater | NA | 440 | 1/Month(4) | Grab |
Freshwaters listed as public water supply | NA | 15 | 2/Month(4) | Grab |
pH (standard units) | 6.0 | 9.0 | (4) | Grab |
Total Recoverable Lead (µg/l)(2) | NA | 7.2 | (4) | Grab |
Total Hardness (mg/l CaCO3)(2) | NL | NA | (4) | Grab |
Ethylene Dibromide (µg/l)(2) | ||||
Freshwaters not listed as public water supplies and saltwater | NA | 1.9 | 1/Month(4) | Grab |
Freshwaters listed as public water supply | NA | 0.16 | 2/Month(4) | Grab |
1,2 Dichloroethane (µg/l)(2) | NA | 3.8 | (4) | Grab |
Ethanol (µg/l)(3) | NA | 4100 | (4) | Grab |
NL = No limitation, monitoring required NA = Not applicable | ||||
(1)Benzene, Toluene, Ethylbenzene, Total Xylenes and MTBE shall be analyzed according to a current and appropriate EPA Wastewater Method ( 40 CFR Part 136) or EPA SW 846 Method 8021B (2014). | ||||
(2)Monitoring for this parameter is required only when contamination results from leaded fuel. Lead shall be analyzed according to a current and appropriate EPA Wastewater Method ( 40 CFR Part 136). 1,2 dichloroethane and ethylene dibromide (EDB) shall be analyzed by a current and appropriate EPA SW 846 Method or EPA Wastewater Method from 40 CFR Part 136 . EDB in wastewaters discharged to public water supplies shall be analyzed using EPA SW 846 Method 8011 (1992) or EPA Drinking Water Method 504.1 (1995). | ||||
(3)Monitoring for ethanol is only required for discharges of water contaminated by gasoline containing greater than 10% ethanol. Ethanol shall be analyzed according to EPA SW 846 Method 8015C (2000) or EPA SW 846 Method 8015C (2007) or EPA SW 846 Method 8260B (1996). | ||||
(4)The monitoring frequency for discharges into freshwaters not listed as public water supplies and saltwater shall be once per month. If the first 12 months of permit coverage results demonstrate full compliance with the effluent limitations, the permittee may request that the monitoring frequency for ethanol be reduced from monthly to 1/quarter. The written request shall be sent to the appropriate DEQ regional office for review. Upon written notification from the regional office, monitoring frequency may be reduced to 1/quarter. Should the permittee be issued a warning letter related to violation of effluent limitations or a notice of violation or be the subject of an active enforcement action, monitoring frequency for ethanol shall revert to 1/month upon issuance of the letter or notice or execution of the enforcement action and remain in effect until the permit's expiration date. Reports of quarterly monitoring shall be submitted to the DEQ regional office no later than the 10th day of April, July, October, and January in each year of permit coverage. The monitoring frequency for discharges into freshwaters listed as public water supplies shall be twice per month for all constituents or parameters. If the first 12 months of permit coverage results demonstrate full compliance with the effluent limitations, the permittee may request that the monitoring frequency for ethanol be reduced to 1/quarter and the other parameters to 1/month. The written request shall be sent to the appropriate DEQ regional office for review. Upon written notification from the regional office, the monitoring frequency for ethanol may be reduced to 1/quarter and the other parameters to1/month. Should the permittee be issued a warning letter related to violation of effluent limitations or a notice of violation or be the subject of an active enforcement action, monitoring frequency shall revert to 2/month upon issuance of the letter or notice or execution of the enforcement action and remain in effect until the permit's expiration date. Reports of quarterly monitoring shall be submitted to the DEQ regional office no later than the 10th day of April, July, October, and January in each year of permit coverage. |
During the period beginning with the permittee's coverage under this general permit and lasting until the permit's expiration date, the permittee is authorized to discharge from outfall serial number xxxx. Samples taken in compliance with the monitoring requirements specified below shall be taken at the following location: outfall from the final treatment unit prior to mixing with any other waters.
Such discharges shall be limited and monitored by the permittee as specified below:
EFFLUENT CHARACTERISTICS | DISCHARGE LIMITATIONS | MONITORING REQUIREMENTS | ||
Instantaneous Minimum | Instantaneous Maximum | Frequency | Sample Type | |
Flow (GPD) | NA | NL | (4) | Estimate |
Naphthalene (µg/l)(1) | NA | 8.9 | (4) | Grab |
Total Petroleum Hydrocarbons (mg/l)(2) | NA | 15 | (4) | Grab |
pH (standard units) | 6.0 | 9.0 | (4) | Grab |
Benzene (µg/l)(3) | NA | 5.8 | 2/Month(4) | Grab |
MTBE (methyl tert-butyl ether) (µg/l)(3) | NA | 15 | 2/Month(4) | Grab |
NL = No limitation, monitoring required NA = Not applicable | ||||
(1)Naphthalene shall be analyzed by a current and appropriate EPA Wastewater Method from 40 CFR Part 136 or a current and appropriate EPA SW 846 Method. | ||||
(2)TPH shall be analyzed using EPA SW 846 Method 8015C (2000) or EPA SW 846 Method 8015C (2007) for diesel range organics, or by EPA SW 846 Method 8270D (2014) or 8270E (2018). | ||||
(3)Monitoring for benzene and MTBE is only required for discharges into freshwaters listed as public water supplies. Benzene and MTBE shall be analyzed according to a current and appropriate EPA Wastewater Method ( 40 CFR Part 136) or EPA SW 846 Method. | ||||
(4)The monitoring frequency for discharges into freshwaters not listed as public water supplies and saltwater shall be once per month. The monitoring frequency for discharges into freshwaters listed as public water supplies shall be twice per month for all constituents or parameters. If the first 12 months of permit coverage results demonstrate full compliance with the effluent limitations, the permittee may request that the monitoring frequency be reduced to once per month. The written request shall be sent to the appropriate DEQ regional office for review. Upon written notification from the regional office, the monitoring frequency for ethanol may be reduced to 1/quarter or the other parameters to1/month. Should the permittee be issued a warning letter related to violation of effluent limitations or a notice of violation or be the subject of an active enforcement action, monitoring frequency shall revert to 2/month upon issuance of the letter or notice or execution of the enforcement action and remain in effect until the permit's expiration date. |
During the period beginning with the permittee's coverage under this general permit and lasting until the permit's expiration date, the permittee is authorized to discharge from outfall serial number xxxx. Samples taken in compliance with the monitoring requirements specified below shall be taken at the following location: outfall from the final treatment unit prior to mixing with any other waters.
Such discharges shall be limited and monitored by the permittee as specified below:
EFFLUENT CHARACTERISTICS | DISCHARGE LIMITATIONS | MONITORING REQUIREMENTS | ||
Instantaneous Minimum | Instantaneous Maximum | Frequency | Sample Type | |
Flow (GPD) | NA | NL | 1/Month | Estimate |
2/Month if public water supply(2) | Estimate | |||
Chloroform (CAS # 67663), (µg/l)(1) | NA | 60 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
1,1 Dichloroethane (CAS # 75343) (µg/l)(1) | NA | 2.4 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
1,2 Dichloroethane (CAS # 107062) (µg/l)(1) | NA | 3.8 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
1,1 Dichloroethylene (CAS # 75354) (µg/l)(1) | NA | 7.0 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
cis-1,2 Dichloroethylene (CAS # 159592) (µg/l)(1) | NA | 70 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
trans 1,2 Dichloroethylene (CAS # 156605) (µg/l)(1) | NA | 100 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
Methylene Chloride (CAS # 75092) (µg/l)(1) | NA | 5.0 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
Tetrachloroethylene (CAS # 127184) (µg/l)(1) | NA | 5.0 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
1,1,1 Trichloroethane (CAS # 71556) (µg/l)(1) | NA | 54 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
1,1,2 Trichloroethane (CAS # 79005) (µg/l)(1) | NA | 5.0 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
Trichloroethylene (CAS # 79016) (µg/l)(1) | NA | 5.0 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
Vinyl Chloride (CAS # 75014) (µg/l)(1) | NA | 2.0 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
Carbon Tetrachloride (CAS # 56235) (µg/l)(1) | NA | 2.3 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
1,2 Dichlorobenzene (CAS # 95501) (µg/l)(1) | NA | 16 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
Chlorobenzene (CAS # 108907) (µg/l)(1) | NA | 3.4 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
Trichlorofluoromethane (CAS # 75694) (µg/l)(1) | NA | 5.0 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
Chloroethane (CAS # 75003) (µg/l)(1) | NA | 3.6 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
pH (standard units) | 6.0 | 9.0 | 1/Month | Grab |
2/Month if public water supply(2) | Grab | |||
NL = No limitation, monitoring required NA = Not applicable | ||||
(1) This constituent shall be analyzed by a current and appropriate gas chromatograph/mass spectroscopy method from EPA SW 846 or the EPA Wastewater Method series from 40 CFR Part 136. (2) Monitoring frequency for discharges into surface waters listed as public water supplies shall be 2/month for the first year of permit coverage. If the first 12 months of permit coverage results demonstrate full compliance with the effluent limitations, the permittee may request that the monitoring frequency be reduced from 2/month to 1/month. The written request shall be sent to the appropriate DEQ regional office for review. Upon written notification from the regional office, monitoring frequency may be reduced to 1/month. Should the permittee be issued a warning letter related to violation of effluent limitations or a notice of violation, or be the subject of an active enforcement action, monitoring frequency shall revert to 2/month upon issuance of the letter or notice or execution of the enforcement action and remain in effect until the permit's expiration date. |
During the period beginning with the permittee's coverage under this general permit and lasting until the permit's expiration date, the permittee is authorized to discharge from outfall serial number xxxx. Samples taken in compliance with the monitoring requirements specified below shall be taken at the following location: outfall from the final treatment unit prior to mixing with any other waters.
Such discharges shall be limited and monitored by the permittee as specified below:
EFFLUENT CHARACTERISTICS | DISCHARGE LIMITATIONS | MONITORING REQUIREMENTS | ||
Instantaneous Minimum | Instantaneous Maximum | Frequency | Sample Type | |
Flow (GPD) | NA | NL | 1/Month | Estimate |
2/Month if public water supply(3) | Estimate | |||
Total Hardness (as CaCO3 in mg/l)(2) | NA | NL | 1/Month | Grab |
2/Month if public water supply(3) | Grab | |||
Total Recoverable Antimony (µg/l)(1) | NA | 5.6 | 1/Month | Grab |
2/Month if public water supply(3) | Grab | |||
Total Recoverable Arsenic (µg/l)(1) | NA | 10 | 1/Month | Grab |
2/Month if public water supply(3) | Grab | |||
Total Recoverable Cadmium (µg/l)(1) | NA | 0.55 | 1/Month | Grab |
2/Month if public water supply(3) | Grab | |||
Total Recoverable Chromium (µg/l)(1) | NA | 11 | 1/Month | Grab |
2/Month if public water supply(3) | Grab | |||
Total Recoverable Copper (µg/l)(1) | NA | 6.6 | 1/Month | Grab |
2/Month if public water supply(3) | Grab | |||
Total Recoverable Lead (µg/l)(1) | NA | 7.2 | 1/Month | Grab |
2/Month if public water supply(3) | Grab | |||
Total Recoverable Mercury (µg/l)(1) | NA | 0.77 | 1/Month | Grab |
2/Month if public water supply(3) | Grab | |||
Total Recoverable Nickel (µg/l)(1) | NA | 15 | 1/Month | Grab |
2/Month if public water supply(3) | Grab | |||
Total Recoverable Selenium (µg/l)(1) | NA | 5.0 | 1/Month | Grab |
2/Month if public water supply(3) | Grab | |||
Total Recoverable Silver (µg/l)(1) | NA | 1.9 | 1/Month | Grab |
2/Month if public water supply(3) | Grab | |||
Total Recoverable Thallium (µg/l)(1) | NA | 0.24 | 1/Month | Grab |
2/Month if public water supply(3) | Grab | |||
Total Recoverable Zinc (µg/l)(1) | NA | 87 | 1/Month | Grab |
2/Month if public water supply(3) | Grab | |||
pH (standard units) | 6.0 | 9.0 | 1/Month | Grab |
2/Month if public water supply(3) | Grab | |||
NL = No limitation, monitoring required NA = Not applicable (1)Metals shall be analyzed by a current and appropriate EPA Wastewater Method from 40 CFR Part 136. (2)Total Hardness shall be collected concurrently with the metals. (3)The monitoring frequency for discharges into freshwaters not listed as public water supplies and saltwater shall be once per month. The monitoring frequency for discharges into freshwaters listed as public water supplies shall be twice per month for all constituents or parameters. If the first 12 months of permit coverage results demonstrate full compliance with the effluent limitations, the permittee may request that the monitoring frequency be reduced to once per month. The written request shall be sent to the appropriate DEQ regional office for review. Upon written notification from the regional office, the monitoring frequency for ethanol may be reduced to 1/quarter or the other parameters to 1/month. Should the permittee be issued a warning letter related to violation of effluent limitations or a notice of violation or be the subject of an active enforcement action, monitoring frequency shall revert to 2/month upon issuance of the letter or notice or execution of the enforcement action and remain in effect until the permit's expiration date. |
Conditions Applicable to All VPDES Permits
Discharges reportable to the department under the immediate reporting requirements of other regulations are exempted from this requirement.
The department may waive the written report on a case-by-case basis for reports of noncompliance under Part II I if the oral report has been received within 24 hours and no adverse impact on state waters has been reported.
"I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to ensure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations."
The permittee shall comply with effluent standards or prohibitions established under § 307(a) of the Clean Water Act for toxic pollutants and with standards for sewage sludge use or disposal established under § 405(d) of the Clean Water Act within the time provided in the regulations that establish these standards or prohibitions, even if this permit has not yet been modified to incorporate the requirement.
For purposes of this section, the time for inspection shall be deemed reasonable during regular business hours or whenever the facility is discharging. Nothing contained in this general permit shall make an inspection unreasonable during an emergency.
9 Va. Admin. Code § 25-120-80
Statutory Authority: § 62.1-44.15 of the Code of Virginia; § 402 of the Clean Water Act; 40 CFR Parts 122, 123, and 124.