NPDES permit VA0020991 · Major POTW · effective, expires 2029-10-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (19), BOD, percent removal [total] (4), Solids, suspended percent removal (3).
Reports are due about 10 days after each monitoring period ends (the most common figure among VA permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Oxygen, dissolved [DO] | MINIMUM | >= 5 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 22 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | <= 33 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 190 kg/d | all year |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | <= 280 kg/d | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| 001 | pH | MINIMUM | >= 6.5 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 001 | Solids, total suspended | MX WK AV | <= 45 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 260 kg/d | all year |
| 001 | Solids, total suspended | MX WK AV | <= 380 kg/d | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 8.1 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 10 mg/L | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | <= 2.25 MGD (alert) | all year |
| 001 | Flow, in conduit or thru treatment plant | MX WK AV | report only (alert) | all year |
| 001 | Chlorine, total residual | MO AVG | <= .031 mg/L | all year |
| 001 | Chlorine, total residual | MAXIMUM | <= .033 mg/L | all year |
| 001 | Chlorine, total residual | MINIMUM | >= .6 mg/L | all year |
| 001 | BOD, percent removal [total] | MO AV MN | >= 85 % | all year |
| 001 | E. coli | GEO MEAN | <= 126 #/100mL | all year |
| 001 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
| 002 | Oxygen, dissolved [DO] | MINIMUM | >= 5 mg/L | all year |
| 002 | BOD, 5-day, 20 deg. C | MO AVG | <= 22 mg/L | all year |
| 002 | BOD, 5-day, 20 deg. C | MX WK AV | <= 33 mg/L | all year |
| 002 | BOD, 5-day, 20 deg. C | MO AVG | <= 190 kg/d | all year |
| 002 | BOD, 5-day, 20 deg. C | MX WK AV | <= 280 kg/d | all year |
| 002 | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| 002 | pH | MINIMUM | >= 6.5 SU | all year |
| 002 | pH | MAXIMUM | <= 9 SU | all year |
| 002 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 002 | Solids, total suspended | MX WK AV | <= 45 mg/L | all year |
| 002 | Solids, total suspended | MO AVG | <= 260 kg/d | all year |
| 002 | Solids, total suspended | MX WK AV | <= 380 kg/d | all year |
| 002 | Solids, total suspended | MO AVG | report only | all year |
| 002 | Nitrogen, ammonia total [as N] | MO AVG | <= 8.1 mg/L | all year |
| 002 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 10 mg/L | all year |
| 002 | Flow, in conduit or thru treatment plant | MO AVG | <= 2.25 MGD (alert) | all year |
| 002 | Flow, in conduit or thru treatment plant | MX WK AV | report only (alert) | all year |
| 002 | Chlorine, total residual | MO AVG | <= .031 mg/L | all year |
| 002 | Chlorine, total residual | MAXIMUM | <= .033 mg/L | all year |
| 002 | Chlorine, total residual | MINIMUM | >= .6 mg/L | all year |
| 002 | BOD, percent removal [total] | MO AV MN | >= 85 % | all year |
| 002 | E. coli | GEO MEAN | <= 126 #/100mL | all year |
| 002 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states