NPDES permit VA0091821 · Minor POTW · effective, expires 2028-08-31 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-07-31. Most often over: BOD, carbonaceous [5 day, 20 C] (5), Nitrogen, ammonia total [as N] (4), pH (1).
Reports are due about 10 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Oxygen, dissolved [DO] | MINIMUM | >= 7.1 mg/L | all year |
| 001 | pH | MINIMUM | >= 6 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 | <= 49 kg/d | all year |
| 001 | Solids, total suspended | MX WK AV | <= 74 kg/d | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= .18 mg/L | Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= .54 mg/L | Jan, Feb, Mar, Apr, May, Dec |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= .24 mg/L | Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= .73 mg/L | Jan, Feb, Mar, Apr, May, Dec |
| 001 | Hardness, total [as CaCO3] | MINIMUM | report only | all year |
| 001 | Zinc, total recoverable | MO AVG | <= 50 ug/L | all year |
| 001 | Zinc, total recoverable | MO AVG | <= 40 ug/L | all year |
| 001 | Zinc, total recoverable | MO AVG | <= 40 ug/L | all year |
| 001 | Zinc, total recoverable | MX WK AV | <= 50 ug/L | all year |
| 001 | Zinc, total recoverable | MX WK AV | <= 40 ug/L | all year |
| 001 | Zinc, total recoverable | MX WK AV | <= 40 ug/L | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | <= .435 MGD (alert) | all year |
| 001 | Flow, in conduit or thru treatment plant | MAXIMUM | report only (alert) | all year |
| 001 | E. coli | GEO MEAN | <= 126 #/100mL | all year |
| 001 | Nitrogen, Total As N | MO AVG | <= 3 mg/L | all year |
| 001 | Phosphorus, Total As P | MO AVG | <= .3 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 5 mg/L | Jan, Feb, Mar, Apr, May, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 2 mg/L | Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 8 mg/L | Jan, Feb, Mar, Apr, May, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 3 mg/L | Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 8 kg/d | Jan, Feb, Mar, Apr, May, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 3 kg/d | Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 10 kg/d | Jan, Feb, Mar, Apr, May, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 5 kg/d | Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | report only | all year |
| 001 | BOD, carb-5 day, 20 deg C, percent removal | MO AV MN | >= 85 % | all year |
| 001 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
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