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Industrial Organic Chemicals, major discharger, Hopewell, Virginia. NPDES permit VA0005291, in force until Nov 30, 2029. Last 12 months: over a limit 5 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| November 2025 | 001 | pH, daily maximum | 12 | ≤ 9 SU | — |
| January 2026 | 003 | pH, daily maximum | 9.2 | ≤ 9 SU | — |
| February 2026 | 003 | pH, daily maximum | 10.3 | ≤ 9 SU | — |
| June 2026 | 001 | pH, daily minimum | 4 | ≥ 6 SU | — |
| August 2026 | 101 | Solids, total suspended, monthly average | 4459 | ≤ 4300 kg/d | 4% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Thermal Discharge | daily maximum | report only (BTU/d) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (kg/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (kg/d) | all year | 001 |
| Phosphorus, total [as P] | monthly average | ≤ 2 mg/L | all year | 001 |
| Carbon, tot organic [TOC] | monthly average | report only (mg/L) | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 10 mg/L | all year | 001 |
| Carbon, tot organic [TOC] | monthly average | report only (kg/d) | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | report only (kg/d) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Oxygen, dissolved [DO] minimum | monthly average minimum | ≥ 6.1 mg/L | all year | 001 |
| Length of longest pH excursion | maximum | ≤ 60 min | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (kg/d) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (kg/d) | all year | 001 |
| pH range excursions, monthly total accum | monthly maximum | ≤ 446 min | all year | 001 |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | monthly average | report only (tox chronic) | all year | 001 |
| Thermal Discharge | daily maximum | report only (BTU/d) | all year | 002 |
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | monthly average | report only (kg/d) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (kg/d) | all year | 002 |
| Phosphorus, total [as P] | monthly average | ≤ 2 mg/L | all year | 002 |
| Carbon, tot organic [TOC] | monthly average | report only (mg/L) | all year | 002 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 10 mg/L | all year | 002 |
| Carbon, tot organic [TOC] | monthly average | report only (kg/d) | all year | 002 |
| Carbon, tot organic [TOC] | daily maximum | report only (kg/d) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Oxygen, dissolved [DO] minimum | monthly average minimum | ≥ 6.1 mg/L | all year | 002 |
| Length of longest pH excursion | maximum | ≤ 60 min | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (kg/d) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (kg/d) | all year | 002 |
| pH range excursions, monthly total accum | monthly maximum | ≤ 446 min | all year | 002 |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | monthly average | report only (tox chronic) | all year | 002 |
| Thermal Discharge | daily maximum | ≤ 1.5 BTU/d | all year | 003 |
| pH | daily minimum | ≥ 6 SU | all year | 003 |
| pH | daily maximum | ≤ 9 SU | all year | 003 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 719 kg/d | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1438 kg/d | all year | 003 |
| Phosphorus, total [as P] | monthly average | ≤ 2 mg/L | all year | 003 |
| Carbon, tot organic [TOC] | monthly average | report only (mg/L) | all year | 003 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 10 mg/L | all year | 003 |
| Carbon, tot organic [TOC] | monthly average | report only (kg/d) | all year | 003 |
| Carbon, tot organic [TOC] | daily maximum | report only (kg/d) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Oxygen, dissolved [DO] minimum | monthly average minimum | ≥ 6.1 mg/L | all year | 003 |
| Length of longest pH excursion | maximum | ≤ 60 min | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (kg/d) | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (kg/d) | all year | 003 |
| pH range excursions, monthly total accum | monthly maximum | ≤ 446 min | all year | 003 |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | monthly average | report only (tox chronic) | all year | 003 |
| pH | minimum | ≥ 6 SU | all year | 005 |
| pH | maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 005 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 005 |
| Solids, total suspended | monthly average | ≤ 82 kg/d | all year | 005 |
| Solids, total suspended | daily maximum | ≤ 120 kg/d | all year | 005 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 9.26 mg/L | all year | 005 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 17 mg/L | all year | 005 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 25.2 kg/d | all year | 005 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 46.3 kg/d | all year | 005 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 005 |
| Iron, total recoverable | monthly average | report only (ug/L) | all year | 005 |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | 005 |
| Zinc, total recoverable | monthly average | ≤ 904 ug/L | all year | 005 |
| Zinc, total recoverable | daily maximum | ≤ 904 ug/L | all year | 005 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | all year | 005 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | all year | 005 |
| Copper, total recoverable | monthly average | ≤ 98.6 ug/L | all year | 005 |
| Copper, total recoverable | daily maximum | ≤ 98.6 ug/L | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 005 |
| Nitrogen, Total As N | annual average | ≤ 12 mg/L | all year | 005 |
| Oxygen, dissolved [DO] minimum | monthly average minimum | ≥ 6.1 mg/L | all year | 005 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 005 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 005 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (kg/d) | all year | 005 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (kg/d) | all year | 005 |
| NOAEL Static 48Hr Acute Ceriodaphnia dubia | daily minimum | report only (%) | all year | 005 |
| NOAEL Static 48Hr Acute Ceriodaphnia dubia | monthly average | report only (%) | all year | 005 |
| NOAEL Static 48Hr Acute Ceriodaphnia dubia | daily maximum | report only (%) | all year | 005 |
| NOAEL Static 48Hr Acute Pimephales promelas | daily minimum | report only (%) | all year | 005 |
| NOAEL Static 48Hr Acute Pimephales promelas | monthly average | report only (%) | all year | 005 |
| NOAEL Static 48Hr Acute Pimephales promelas | daily maximum | report only (%) | all year | 005 |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | monthly average | report only (tox chronic) | all year | 005 |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | daily maximum | report only (tox chronic) | all year | 005 |
| TU Static Renewal 7-Day Chronic Pimphales promelas | monthly average | report only (tox chronic) | all year | 005 |
| TU Static Renewal 7-Day Chronic Pimphales promelas | daily maximum | report only (tox chronic) | all year | 005 |
| pH | minimum | ≥ 6 SU | all year | 101 |
| pH | maximum | ≤ 9 SU | all year | 101 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 101 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 101 |
| Solids, total suspended | monthly average | ≤ 4300 kg/d | all year | 101 |
| Solids, total suspended | daily maximum | ≤ 14000 kg/d | all year | 101 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 101 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 101 |
| Nitrogen, ammonia total [as N] | monthly average | report only (kg/d) | all year | 101 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (kg/d) | all year | 101 |
| Carbon tetrachloride | monthly average | report only (mg/L) | all year | 101 |
| Carbon tetrachloride | daily maximum | report only (mg/L) | all year | 101 |
| Carbon tetrachloride | monthly average | ≤ 12.5 kg/d | all year | 101 |
| Carbon tetrachloride | daily maximum | ≤ 33.4 kg/d | all year | 101 |
| Chloroform | monthly average | report only (mg/L) | all year | 101 |
| Chloroform | daily maximum | report only (mg/L) | all year | 101 |
| Chloroform | monthly average | ≤ 9.7 kg/d | all year | 101 |
| Chloroform | daily maximum | ≤ 28.5 kg/d | all year | 101 |
| Toluene | monthly average | report only (mg/L) | all year | 101 |
| Toluene | daily maximum | report only (mg/L) | all year | 101 |
| Toluene | monthly average | ≤ 2.5 kg/d | all year | 101 |
| Toluene | daily maximum | ≤ 6.5 kg/d | all year | 101 |
| Benzene | monthly average | report only (mg/L) | all year | 101 |
| Benzene | daily maximum | report only (mg/L) | all year | 101 |
| Benzene | monthly average | ≤ 5 kg/d | all year | 101 |
| Benzene | daily maximum | ≤ 11.8 kg/d | all year | 101 |
| Acenaphthylene | monthly average | report only (mg/L) | all year | 101 |
| Acenaphthylene | daily maximum | report only (mg/L) | all year | 101 |
| Acenaphthylene | monthly average | ≤ 1.7 kg/d | all year | 101 |
| Acenaphthylene | daily maximum | ≤ 4.1 kg/d | all year | 101 |
| Acenaphthene | monthly average | report only (mg/L) | all year | 101 |
| Acenaphthene | daily maximum | report only (mg/L) | all year | 101 |
| Acenaphthene | monthly average | ≤ 1.7 kg/d | all year | 101 |
| Acenaphthene | daily maximum | ≤ 4.1 kg/d | all year | 101 |
| Acrylonitrile | monthly average | report only (mg/L) | all year | 101 |
| Acrylonitrile | daily maximum | report only (mg/L) | all year | 101 |
| Acrylonitrile | monthly average | ≤ 8.3 kg/d | all year | 101 |
| Acrylonitrile | daily maximum | ≤ 20.4 kg/d | all year | 101 |
| Anthracene | monthly average | report only (mg/L) | all year | 101 |
| Anthracene | daily maximum | report only (mg/L) | all year | 101 |
| Anthracene | monthly average | ≤ 1.7 kg/d | all year | 101 |
| Anthracene | daily maximum | ≤ 4.1 kg/d | all year | 101 |
| Benzo[k]fluoranthene | monthly average | report only (mg/L) | all year | 101 |
| Benzo[k]fluoranthene | daily maximum | report only (mg/L) | all year | 101 |
| Benzo[k]fluoranthene | monthly average | ≤ 1.7 kg/d | all year | 101 |
| Benzo[k]fluoranthene | daily maximum | ≤ 4.1 kg/d | all year | 101 |
| Benzo[a]pyrene | monthly average | report only (mg/L) | all year | 101 |
| Benzo[a]pyrene | daily maximum | report only (mg/L) | all year | 101 |
| Benzo[a]pyrene | monthly average | ≤ 1.8 kg/d | all year | 101 |
| Benzo[a]pyrene | daily maximum | ≤ 4.2 kg/d | all year | 101 |
| Chlorobenzene | monthly average | report only (mg/L) | all year | 101 |
| Chlorobenzene | daily maximum | report only (mg/L) | all year | 101 |
| Chlorobenzene | monthly average | ≤ 12.5 kg/d | all year | 101 |
| Chlorobenzene | daily maximum | ≤ 33.4 kg/d | all year | 101 |
| Chrysene | monthly average | report only (mg/L) | all year | 101 |
| Chrysene | daily maximum | report only (mg/L) | all year | 101 |
| Chrysene | monthly average | ≤ 1.7 kg/d | all year | 101 |
| Chrysene | daily maximum | ≤ 4.1 kg/d | all year | 101 |
| Diethyl phthalate | monthly average | report only (mg/L) | all year | 101 |
| Diethyl phthalate | daily maximum | report only (mg/L) | all year | 101 |
| Diethyl phthalate | monthly average | ≤ 4 kg/d | all year | 101 |
| Diethyl phthalate | daily maximum | ≤ 9.9 kg/d | all year | 101 |
| Dimethyl phthalate | monthly average | report only (mg/L) | all year | 101 |
| Dimethyl phthalate | daily maximum | report only (mg/L) | all year | 101 |
| Dimethyl phthalate | monthly average | ≤ 1.7 kg/d | all year | 101 |
| Dimethyl phthalate | daily maximum | ≤ 4.1 kg/d | all year | 101 |
| Ethylbenzene | monthly average | report only (mg/L) | all year | 101 |
| Ethylbenzene | daily maximum | report only (mg/L) | all year | 101 |
| Ethylbenzene | monthly average | ≤ 12.5 kg/d | all year | 101 |
| Ethylbenzene | daily maximum | ≤ 33.4 kg/d | all year | 101 |
| Fluoranthene | monthly average | report only (mg/L) | all year | 101 |
| Fluoranthene | daily maximum | report only (mg/L) | all year | 101 |
| Fluoranthene | monthly average | ≤ 1.9 kg/d | all year | 101 |
| Fluoranthene | daily maximum | ≤ 4.7 kg/d | all year | 101 |
| Fluorene | monthly average | report only (mg/L) | all year | 101 |
| Fluorene | daily maximum | report only (mg/L) | all year | 101 |
| Fluorene | monthly average | ≤ 1.7 kg/d | all year | 101 |
| Fluorene | daily maximum | ≤ 4.1 kg/d | all year | 101 |
| Hexachlorobutadiene | monthly average | report only (mg/L) | all year | 101 |
| Hexachlorobutadiene | daily maximum | report only (mg/L) | all year | 101 |
| Hexachlorobutadiene | monthly average | ≤ 12.5 kg/d | all year | 101 |
| Hexachlorobutadiene | daily maximum | ≤ 33.4 kg/d | all year | 101 |
| Hexachloroethane | monthly average | report only (mg/L) | all year | 101 |
| Hexachloroethane | daily maximum | report only (mg/L) | all year | 101 |
| Hexachloroethane | monthly average | ≤ 17.2 kg/d | all year | 101 |
| Hexachloroethane | daily maximum | ≤ 69.7 kg/d | all year | 101 |
| Methyl chloride [Chloromethane] | monthly average | report only (mg/L) | all year | 101 |
| Methyl chloride [Chloromethane] | daily maximum | report only (mg/L) | all year | 101 |
| Methyl chloride [Chloromethane] | monthly average | ≤ 9.7 kg/d | all year | 101 |
| Methyl chloride [Chloromethane] | daily maximum | ≤ 25.9 kg/d | all year | 101 |
| Methylene chloride | monthly average | report only (mg/L) | all year | 101 |
| Methylene chloride | daily maximum | report only (mg/L) | all year | 101 |
| Methylene chloride | monthly average | ≤ 3.2 kg/d | all year | 101 |
| Methylene chloride | daily maximum | ≤ 14.9 kg/d | all year | 101 |
| Nitrobenzene | monthly average | report only (mg/L) | all year | 101 |
| Nitrobenzene | daily maximum | report only (mg/L) | all year | 101 |
| Nitrobenzene | monthly average | ≤ 196.4 kg/d | all year | 101 |
| Nitrobenzene | daily maximum | ≤ 562.2 kg/d | all year | 101 |
| Phenanthrene | monthly average | report only (mg/L) | all year | 101 |
| Phenanthrene | daily maximum | report only (mg/L) | all year | 101 |
| Phenanthrene | monthly average | ≤ 1.7 kg/d | all year | 101 |
| Phenanthrene | daily maximum | ≤ 4.1 kg/d | all year | 101 |
| Pyrene | monthly average | report only (mg/L) | all year | 101 |
| Pyrene | daily maximum | report only (mg/L) | all year | 101 |
| Pyrene | monthly average | ≤ 1.8 kg/d | all year | 101 |
| Pyrene | daily maximum | ≤ 4.2 kg/d | all year | 101 |
| Tetrachloroethylene | monthly average | report only (mg/L) | all year | 101 |
| Tetrachloroethylene | daily maximum | report only (mg/L) | all year | 101 |
| Tetrachloroethylene | monthly average | ≤ 4.6 kg/d | all year | 101 |
| Tetrachloroethylene | daily maximum | ≤ 14.4 kg/d | all year | 101 |
| 1,1-Dichloroethane | monthly average | report only (mg/L) | all year | 101 |
| 1,1-Dichloroethane | daily maximum | report only (mg/L) | all year | 101 |
| 1,1-Dichloroethane | monthly average | ≤ 1.9 kg/d | all year | 101 |
| 1,1-Dichloroethane | daily maximum | ≤ 5.2 kg/d | all year | 101 |
| 1,1-Dichloroethylene | monthly average | report only (mg/L) | all year | 101 |
| 1,1-Dichloroethylene | daily maximum | report only (mg/L) | all year | 101 |
| 1,1-Dichloroethylene | monthly average | ≤ 1.9 kg/d | all year | 101 |
| 1,1-Dichloroethylene | daily maximum | ≤ 5.3 kg/d | all year | 101 |
| 1,1,1-Trichloroethane | monthly average | report only (mg/L) | all year | 101 |
| 1,1,1-Trichloroethane | daily maximum | report only (mg/L) | all year | 101 |
| 1,1,1-Trichloroethane | monthly average | ≤ 1.9 kg/d | all year | 101 |
| 1,1,1-Trichloroethane | daily maximum | ≤ 5.2 kg/d | all year | 101 |
| 1,1,2-Trichloroethane | monthly average | report only (mg/L) | all year | 101 |
| 1,1,2-Trichloroethane | daily maximum | report only (mg/L) | all year | 101 |
| 1,1,2-Trichloroethane | monthly average | ≤ 2.8 kg/d | all year | 101 |
| 1,1,2-Trichloroethane | daily maximum | ≤ 11.2 kg/d | all year | 101 |
| Benzo[a]anthracene | monthly average | report only (mg/L) | all year | 101 |
| Benzo[a]anthracene | daily maximum | report only (mg/L) | all year | 101 |
| Benzo[a]anthracene | monthly average | ≤ 1.7 kg/d | all year | 101 |
| Benzo[a]anthracene | daily maximum | ≤ 4.1 kg/d | all year | 101 |
| 1,2-Dichloroethane, total weight | monthly average | report only (mg/L) | all year | 101 |
| 1,2-Dichloroethane, total weight | daily maximum | report only (mg/L) | all year | 101 |
| 1,2-Dichloroethane, total weight | monthly average | ≤ 15.8 kg/d | all year | 101 |
| 1,2-Dichloroethane, total weight | daily maximum | ≤ 50.4 kg/d | all year | 101 |
| 1,2-Dichlorobenzene | monthly average | report only (mg/L) | all year | 101 |
| 1,2-Dichlorobenzene | daily maximum | report only (mg/L) | all year | 101 |
| 1,2-Dichlorobenzene | monthly average | ≤ 17.2 kg/d | all year | 101 |
| 1,2-Dichlorobenzene | daily maximum | ≤ 69.7 kg/d | all year | 101 |
| 1,2-Dichloropropane | monthly average | report only (mg/L) | all year | 101 |
| 1,2-Dichloropropane | daily maximum | report only (mg/L) | all year | 101 |
| 1,2-Dichloropropane | monthly average | ≤ 17.2 kg/d | all year | 101 |
| 1,2-Dichloropropane | daily maximum | ≤ 69.7 kg/d | all year | 101 |
| 1,2,4-Trichlorobenzene | monthly average | report only (mg/L) | all year | 101 |
| 1,2,4-Trichlorobenzene | daily maximum | report only (mg/L) | all year | 101 |
| 1,2,4-Trichlorobenzene | monthly average | ≤ 17.2 kg/d | all year | 101 |
| 1,2,4-Trichlorobenzene | daily maximum | ≤ 69.7 kg/d | all year | 101 |
| 1,3-Dichloropropene, total weight | monthly average | report only (mg/L) | all year | 101 |
| 1,3-Dichloropropene, total weight | daily maximum | report only (mg/L) | all year | 101 |
| 1,3-Dichloropropene, total weight | monthly average | ≤ 17.2 kg/d | all year | 101 |
| 1,3-Dichloropropene, total weight | daily maximum | ≤ 69.7 kg/d | all year | 101 |
| 1,3-Dichlorobenzene | monthly average | report only (mg/L) | all year | 101 |
| 1,3-Dichlorobenzene | daily maximum | report only (mg/L) | all year | 101 |
| 1,3-Dichlorobenzene | monthly average | ≤ 12.5 kg/d | all year | 101 |
| 1,3-Dichlorobenzene | daily maximum | ≤ 33.4 kg/d | all year | 101 |
| 1,4-Dichlorobenzene | monthly average | report only (mg/L) | all year | 101 |
| 1,4-Dichlorobenzene | daily maximum | report only (mg/L) | all year | 101 |
| 1,4-Dichlorobenzene | monthly average | ≤ 12.5 kg/d | all year | 101 |
| 1,4-Dichlorobenzene | daily maximum | ≤ 33.4 kg/d | all year | 101 |
| 2-Nitrophenol | monthly average | report only (mg/L) | all year | 101 |
| 2-Nitrophenol | daily maximum | report only (mg/L) | all year | 101 |
| 2-Nitrophenol | monthly average | ≤ 5.7 kg/d | all year | 101 |
| 2-Nitrophenol | daily maximum | ≤ 20.3 kg/d | all year | 101 |
| 2,4-Dimethylphenol | monthly average | report only (mg/L) | all year | 101 |
| 2,4-Dimethylphenol | daily maximum | report only (mg/L) | all year | 101 |
| 2,4-Dimethylphenol | monthly average | ≤ 1.7 kg/d | all year | 101 |
| 2,4-Dimethylphenol | daily maximum | ≤ 4.1 kg/d | all year | 101 |
| 2,4-Dinitrophenol | monthly average | report only (mg/L) | all year | 101 |
| 2,4-Dinitrophenol | daily maximum | report only (mg/L) | all year | 101 |
| 2,4-Dinitrophenol | monthly average | ≤ 106 kg/d | all year | 101 |
| 2,4-Dinitrophenol | daily maximum | ≤ 376.8 kg/d | all year | 101 |
| 4-Nitrophenol | monthly average | report only (mg/L) | all year | 101 |
| 4-Nitrophenol | daily maximum | report only (mg/L) | all year | 101 |
| 4-Nitrophenol | monthly average | ≤ 14.2 kg/d | all year | 101 |
| 4-Nitrophenol | daily maximum | ≤ 50.6 kg/d | all year | 101 |
| 4,6-Dinitro-o-cresol | monthly average | report only (mg/L) | all year | 101 |
| 4,6-Dinitro-o-cresol | daily maximum | report only (mg/L) | all year | 101 |
| 4,6-Dinitro-o-cresol | monthly average | ≤ 6.8 kg/d | all year | 101 |
| 4,6-Dinitro-o-cresol | daily maximum | ≤ 24.3 kg/d | all year | 101 |
| Naphthalene | monthly average | report only (mg/L) | all year | 101 |
| Naphthalene | daily maximum | report only (mg/L) | all year | 101 |
| Naphthalene | monthly average | ≤ 1.7 kg/d | all year | 101 |
| Naphthalene | daily maximum | ≤ 4.1 kg/d | all year | 101 |
| Di[2-ethylhexyl] phthalate [DEHP] | monthly average | report only (mg/L) | all year | 101 |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (mg/L) | all year | 101 |
| Di[2-ethylhexyl] phthalate [DEHP] | monthly average | ≤ 8.3 kg/d | all year | 101 |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | ≤ 22.7 kg/d | all year | 101 |
| Di-n-butyl phthalate | monthly average | report only (mg/L) | all year | 101 |
| Di-n-butyl phthalate | daily maximum | report only (mg/L) | all year | 101 |
| Di-n-butyl phthalate | monthly average | ≤ 1.8 kg/d | all year | 101 |
| Di-n-butyl phthalate | daily maximum | ≤ 3.8 kg/d | all year | 101 |
| Vinyl chloride | monthly average | report only (mg/L) | all year | 101 |
| Vinyl chloride | daily maximum | report only (mg/L) | all year | 101 |
| Vinyl chloride | monthly average | ≤ 8.5 kg/d | all year | 101 |
| Vinyl chloride | daily maximum | ≤ 15.1 kg/d | all year | 101 |
| Trichloroethylene | monthly average | report only (mg/L) | all year | 101 |
| Trichloroethylene | daily maximum | report only (mg/L) | all year | 101 |
| Trichloroethylene | monthly average | ≤ 2.3 kg/d | all year | 101 |
| Trichloroethylene | daily maximum | ≤ 6.1 kg/d | all year | 101 |
| Hexachlorobenzene | monthly average | report only (mg/L) | all year | 101 |
| Hexachlorobenzene | daily maximum | report only (mg/L) | all year | 101 |
| Hexachlorobenzene | monthly average | ≤ 17.2 kg/d | all year | 101 |
| Hexachlorobenzene | daily maximum | ≤ 69.7 kg/d | all year | 101 |
| Phenols | monthly average | report only (mg/L) | all year | 101 |
| Phenols | daily maximum | report only (mg/L) | all year | 101 |
| Phenols | monthly average | ≤ 1.7 kg/d | all year | 101 |
| Phenols | daily maximum | ≤ 4.1 kg/d | all year | 101 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 101 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 101 |
| 3,4-Benzofluoranthene | monthly average | report only (mg/L) | all year | 101 |
| 3,4-Benzofluoranthene | daily maximum | report only (mg/L) | all year | 101 |
| 3,4-Benzofluoranthene | monthly average | ≤ 1.8 kg/d | all year | 101 |
| 3,4-Benzofluoranthene | daily maximum | ≤ 4.2 kg/d | all year | 101 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 101 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 101 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 1247 kg/d | all year | 101 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 6700 kg/d | all year | 101 |
| trans-1,2-Dichloroethylene | monthly average | report only (mg/L) | all year | 101 |
| trans-1,2-Dichloroethylene | daily maximum | report only (mg/L) | all year | 101 |
| trans-1,2-Dichloroethylene | monthly average | ≤ 2.2 kg/d | all year | 101 |
| trans-1,2-Dichloroethylene | daily maximum | ≤ 5.8 kg/d | all year | 101 |
| Chloroethane | monthly average | report only (mg/L) | all year | 101 |
| Chloroethane | daily maximum | report only (mg/L) | all year | 101 |
| Chloroethane | monthly average | ≤ 9.7 kg/d | all year | 101 |
| Chloroethane | daily maximum | ≤ 25.9 kg/d | all year | 101 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 103 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 103 |
| Solids, total suspended | monthly average | report only (kg/d) | all year | 103 |
| Solids, total suspended | daily maximum | report only (kg/d) | all year | 103 |
| Petrol hydrocarbons, total recoverable | monthly average | report only (mg/L) | all year | 103 |
| Petrol hydrocarbons, total recoverable | daily maximum | ≤ 15 mg/L | all year | 103 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 103 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 103 |
| Petrol hydrocarbons, total recoverable | monthly average | report only (mg/L) | all year | 302 |
| Petrol hydrocarbons, total recoverable | daily maximum | ≤ 15 mg/L | all year | 302 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 302 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 302 |
| pH | minimum | report only (SU) | all year | 901 |
| pH | maximum | report only (SU) | all year | 901 |
| Solids, total suspended | maximum | report only (mg/L) | all year | 901 |
| Nitrogen, total [as N] | maximum | report only (mg/L) | all year | 901 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) | all year | 901 |
| Nitrogen, Kjeldahl, total [as N] | maximum | report only (mg/L) | all year | 901 |
| Nitrite + Nitrate total [as N] | maximum | report only (mg/L) | all year | 901 |
| Phosphorus, total [as P] | maximum | report only (mg/L) | all year | 901 |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) | all year | 901 |
| Iron, total recoverable | maximum | report only (ug/L) | all year | 901 |
| Copper, dissolved [as Cu] | maximum | report only (ug/L) | all year | 901 |
| Zinc, total recoverable | maximum | report only (ug/L) | all year | 901 |
| Aluminum, total recoverable | maximum | report only (ug/L) | all year | 901 |
| Precipitation volume | maximum | report only (Mgal) | all year | 901 |
| Toxic Units Static 48HR Acute Ceriodaphnia dubia | maximum | report only (tox acute) | all year | 901 |
| TU LC50 Static 48Hr Acute Pimephales promelas | maximum | report only (tox acute) | all year | 901 |
| pH | minimum | report only (SU) | all year | 902 |
| pH | maximum | report only (SU) | all year | 902 |
| Solids, total suspended | maximum | report only (mg/L) | all year | 902 |
| Nitrogen, total [as N] | maximum | report only (mg/L) | all year | 902 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) | all year | 902 |
| Nitrogen, Kjeldahl, total [as N] | maximum | report only (mg/L) | all year | 902 |
| Nitrite + Nitrate total [as N] | maximum | report only (mg/L) | all year | 902 |
| Phosphorus, total [as P] | maximum | report only (mg/L) | all year | 902 |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) | all year | 902 |
| Iron, total recoverable | maximum | report only (ug/L) | all year | 902 |
| Copper, dissolved [as Cu] | maximum | report only (ug/L) | all year | 902 |
| Zinc, total recoverable | maximum | report only (ug/L) | all year | 902 |
| Aluminum, total recoverable | maximum | report only (ug/L) | all year | 902 |
| Precipitation volume | maximum | report only (Mgal) | all year | 902 |
| Toxic Units Static 48HR Acute Ceriodaphnia dubia | maximum | report only (tox acute) | all year | 902 |
| TU LC50 Static 48Hr Acute Pimephales promelas | maximum | report only (tox acute) | all year | 902 |
| pH | minimum | report only (SU) | all year | 903 |
| pH | maximum | report only (SU) | all year | 903 |
| Solids, total suspended | maximum | report only (mg/L) | all year | 903 |
| Nitrogen, total [as N] | maximum | report only (mg/L) | all year | 903 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) | all year | 903 |
| Nitrogen, Kjeldahl, total [as N] | maximum | report only (mg/L) | all year | 903 |
| Nitrite + Nitrate total [as N] | maximum | report only (mg/L) | all year | 903 |
| Phosphorus, total [as P] | maximum | report only (mg/L) | all year | 903 |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) | all year | 903 |
| Iron, total recoverable | maximum | report only (ug/L) | all year | 903 |
| Copper, dissolved [as Cu] | maximum | report only (ug/L) | all year | 903 |
| Zinc, total recoverable | maximum | report only (ug/L) | all year | 903 |
| Precipitation volume | maximum | report only (Mgal) | all year | 903 |
| Toxic Units Static 48HR Acute Ceriodaphnia dubia | maximum | report only (tox acute) | all year | 903 |
| TU LC50 Static 48Hr Acute Pimephales promelas | maximum | report only (tox acute) | all year | 903 |
| pH | minimum | report only (SU) | all year | 904 |
| pH | maximum | report only (SU) | all year | 904 |
| Nitrogen, total [as N] | maximum | report only (mg/L) | all year | 904 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) | all year | 904 |
| Phosphorus, total [as P] | maximum | report only (mg/L) | all year | 904 |
| Iron, total recoverable | maximum | report only (ug/L) | all year | 904 |
| Copper, dissolved [as Cu] | maximum | report only (ug/L) | all year | 904 |
| Zinc, total recoverable | maximum | report only (ug/L) | all year | 904 |
| Precipitation volume | maximum | report only (Mgal) | all year | 904 |
| Toxic Units Static 48HR Acute Ceriodaphnia dubia | maximum | report only (tox acute) | all year | 904 |
| TU LC50 Static 48Hr Acute Pimephales promelas | maximum | report only (tox acute) | all year | 904 |
| pH | minimum | report only (SU) | all year | 905 |
| pH | maximum | report only (SU) | all year | 905 |
| Nitrogen, total [as N] | maximum | report only (mg/L) | all year | 905 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) | all year | 905 |
| Phosphorus, total [as P] | maximum | report only (mg/L) | all year | 905 |
| Iron, total recoverable | maximum | report only (ug/L) | all year | 905 |
| Copper, dissolved [as Cu] | maximum | report only (ug/L) | all year | 905 |
| Zinc, total recoverable | maximum | report only (ug/L) | all year | 905 |
| Aluminum, total recoverable | maximum | report only (ug/L) | all year | 905 |
| Precipitation volume | maximum | report only (Mgal) | all year | 905 |
| Toxic Units Static 48HR Acute Ceriodaphnia dubia | maximum | report only (tox acute) | all year | 905 |
| TU LC50 Static 48Hr Acute Pimephales promelas | maximum | report only (tox acute) | all year | 905 |
| pH | minimum | report only (SU) | all year | 906 |
| pH | maximum | report only (SU) | all year | 906 |
| Nitrogen, total [as N] | maximum | report only (mg/L) | all year | 906 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) | all year | 906 |
| Phosphorus, total [as P] | maximum | report only (mg/L) | all year | 906 |
| Iron, total recoverable | maximum | report only (ug/L) | all year | 906 |
| Copper, dissolved [as Cu] | maximum | report only (ug/L) | all year | 906 |
| Zinc, total recoverable | maximum | report only (ug/L) | all year | 906 |
| Aluminum, total recoverable | maximum | report only (ug/L) | all year | 906 |
| Precipitation volume | maximum | report only (Mgal) | all year | 906 |
| Toxic Units Static 48HR Acute Ceriodaphnia dubia | maximum | report only (tox acute) | all year | 906 |
| TU LC50 Static 48Hr Acute Pimephales promelas | maximum | report only (tox acute) | all year | 906 |
| pH | minimum | report only (SU) | all year | 907 |
| pH | maximum | report only (SU) | all year | 907 |
| Nitrogen, total [as N] | maximum | report only (mg/L) | all year | 907 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) | all year | 907 |
| Phosphorus, total [as P] | maximum | report only (mg/L) | all year | 907 |
| Iron, total recoverable | maximum | report only (ug/L) | all year | 907 |
| Copper, dissolved [as Cu] | maximum | report only (ug/L) | all year | 907 |
| Zinc, total recoverable | maximum | report only (ug/L) | all year | 907 |
| Precipitation volume | maximum | report only (Mgal) | all year | 907 |
| Toxic Units Static 48HR Acute Ceriodaphnia dubia | maximum | report only (tox acute) | all year | 907 |
| pH | minimum | report only (SU) | all year | 908 |
| pH | maximum | report only (SU) | all year | 908 |
| Nitrogen, total [as N] | maximum | report only (mg/L) | all year | 908 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) | all year | 908 |
| Phosphorus, total [as P] | maximum | report only (mg/L) | all year | 908 |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) | all year | 908 |
| Iron, total recoverable | maximum | report only (ug/L) | all year | 908 |
| Copper, dissolved [as Cu] | maximum | report only (ug/L) | all year | 908 |
| Zinc, total recoverable | maximum | report only (ug/L) | all year | 908 |
| Precipitation volume | maximum | report only (Mgal) | all year | 908 |
| Toxic Units Static 48HR Acute Ceriodaphnia dubia | maximum | report only (tox acute) | all year | 908 |
| TU LC50 Static 48Hr Acute Pimephales promelas | maximum | report only (tox acute) | all year | 908 |
| pH | minimum | report only (SU) | all year | 909 |
| pH | maximum | report only (SU) | all year | 909 |
| Nitrogen, total [as N] | maximum | report only (mg/L) | all year | 909 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) | all year | 909 |
| Phosphorus, total [as P] | maximum | report only (mg/L) | all year | 909 |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) | all year | 909 |
| Iron, total recoverable | maximum | report only (ug/L) | all year | 909 |
| Copper, dissolved [as Cu] | maximum | report only (ug/L) | all year | 909 |
| Zinc, total recoverable | maximum | report only (ug/L) | all year | 909 |
| Aluminum, total recoverable | maximum | report only (ug/L) | all year | 909 |
| Precipitation volume | maximum | report only (Mgal) | all year | 909 |
| Toxic Units Static 48HR Acute Ceriodaphnia dubia | maximum | report only (tox acute) | all year | 909 |
| TU LC50 Static 48Hr Acute Pimephales promelas | maximum | report only (tox acute) | all year | 909 |
| pH | minimum | report only (SU) | all year | 910 |
| pH | maximum | report only (SU) | all year | 910 |
| Solids, total suspended | maximum | report only (mg/L) | all year | 910 |
| Nitrogen, total [as N] | maximum | report only (mg/L) | all year | 910 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) | all year | 910 |
| Nitrogen, Kjeldahl, total [as N] | maximum | report only (mg/L) | all year | 910 |
| Nitrite + Nitrate total [as N] | maximum | report only (mg/L) | all year | 910 |
| Phosphorus, total [as P] | maximum | report only (mg/L) | all year | 910 |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) | all year | 910 |
| Iron, total recoverable | maximum | report only (ug/L) | all year | 910 |
| Copper, dissolved [as Cu] | maximum | report only (ug/L) | all year | 910 |
| Zinc, dissolved [as Zn] | maximum | report only (ug/L) | all year | 910 |
| Aluminum, total recoverable | maximum | report only (ug/L) | all year | 910 |
| Precipitation volume | maximum | report only (Mgal) | all year | 910 |
| Toxic Units Static 48HR Acute Ceriodaphnia dubia | maximum | report only (tox acute) | all year | 910 |
| TU LC50 Static 48Hr Acute Pimephales promelas | maximum | report only (tox acute) | all year | 910 |
| pH | minimum | report only (SU) | all year | 911 |
| pH | maximum | report only (SU) | all year | 911 |
| Nitrogen, total [as N] | maximum | report only (mg/L) | all year | 911 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) | all year | 911 |
| Phosphorus, total [as P] | maximum | report only (mg/L) | all year | 911 |
| Iron, total recoverable | maximum | report only (ug/L) | all year | 911 |
| Copper, dissolved [as Cu] | maximum | report only (ug/L) | all year | 911 |
| Zinc, total recoverable | maximum | report only (ug/L) | all year | 911 |
| Aluminum, total recoverable | maximum | report only (ug/L) | all year | 911 |
| Precipitation volume | maximum | report only (Mgal) | all year | 911 |
| Toxic Units Static 48HR Acute Ceriodaphnia dubia | maximum | report only (tox acute) | all year | 911 |
| TU LC50 Static 48Hr Acute Pimephales promelas | maximum | report only (tox acute) | all year | 911 |
| pH | minimum | report only (SU) | all year | 912 |
| pH | maximum | report only (SU) | all year | 912 |
| Solids, total suspended | maximum | report only (mg/L) | all year | 912 |
| Nitrogen, total [as N] | maximum | report only (mg/L) | all year | 912 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) | all year | 912 |
| Nitrogen, Kjeldahl, total [as N] | maximum | report only (mg/L) | all year | 912 |
| Nitrite + Nitrate total [as N] | maximum | report only (mg/L) | all year | 912 |
| Phosphorus, total [as P] | maximum | report only (mg/L) | all year | 912 |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) | all year | 912 |
| Iron, total recoverable | maximum | report only (ug/L) | all year | 912 |
| Copper, dissolved [as Cu] | maximum | report only (ug/L) | all year | 912 |
| Zinc, total recoverable | maximum | report only (ug/L) | all year | 912 |
| Aluminum, total recoverable | maximum | report only (ug/L) | all year | 912 |
| Chlorine, total residual | maximum | report only (mg/L) | all year | 912 |
| Precipitation volume | maximum | report only (Mgal) | all year | 912 |
| Toxic Units Static 48HR Acute Ceriodaphnia dubia | maximum | report only (tox acute) | all year | 912 |
| TU LC50 Static 48Hr Acute Pimephales promelas | maximum | report only (tox acute) | all year | 912 |
| pH | minimum | report only (SU) | all year | 913 |
| pH | maximum daily average | report only (SU) | all year | 913 |
| Solids, total suspended | minimum | report only (mg/L) | all year | 913 |
| Solids, total suspended | maximum | report only (mg/L) | all year | 913 |
| Precipitation volume | maximum | report only (Mgal) | all year | 913 |
| Thermal Discharge | daily maximum | ≤ 14.5 BTU/d | all year | 998 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.72 mg/L | all year | 998 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.87 mg/L | all year | 998 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 516 kg/d | all year | 998 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1001 kg/d | all year | 998 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (kg/d) | all year | 999 |
| BOD, carbonaceous [5 day, 20 C] | maximum | report only (kg/d) | all year | 999 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Nitrogen, ammonia total [as N], maximum | 523 kg/d | tighter | — | — |
| Nitrogen, ammonia total [as N], maximum | 1.02 mg/L | tighter | — | — |
| Nitrogen, ammonia total [as N], monthly average | 382 kg/d | tighter | 182 kg/d (11 values) | 0.476× |
| Nitrogen, ammonia total [as N], monthly average | 0.746 mg/L | tighter | 0.55 mg/L (11 values) | 0.737× |
Cited limits by parameter: Virginia's rules and the federal ones.
Same industry: the 13 Chemicals and Allied Products permits in Virginia.
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Your permit document is the final word. As JSON: /api/v1/permits/VA0005291 · MCP: https://passage-data.com/mcp