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Sewage treatment plant, Boydton, Virginia. NPDES permit VA0026247, in force until May 31, 2031. Last 12 months: no values over a limit, 2 required values missing, 1 of 14 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | maximum | ≤ 32 deg C | all year | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 001 |
| Copper, dissolved [as Cu] | monthly average | report only (ug/L) | all year | 001 |
| Copper, dissolved [as Cu] | monthly average | report only (ug/L) | all year | 001 |
| Copper, dissolved [as Cu] | weekly average | report only (ug/L) | all year | 001 |
| Copper, dissolved [as Cu] | weekly average | report only (ug/L) | all year | 001 |
| Zinc, dissolved [as Zn] | monthly average | report only (ug/L) | all year | 001 |
| Zinc, dissolved [as Zn] | monthly average | report only (ug/L) | all year | 001 |
| Zinc, dissolved [as Zn] | weekly average | report only (ug/L) | all year | 001 |
| Zinc, dissolved [as Zn] | weekly average | report only (ug/L) | all year | 001 |
| Antimony, dissolved [as Sb] | monthly average | report only (ug/L) | all year | 001 |
| Antimony, dissolved [as Sb] | monthly average | report only (ug/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .86 MGD (alert, not enforceable) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) (alert, not enforceable) | all year | 001 |
| Chlorine, total residual | monthly average | ≤ 7.6 ug/L | all year | 001 |
| Chlorine, total residual | maximum weekly average | ≤ 8.5 ug/L | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 101 |
| pH | daily maximum | ≤ 9 SU | all year | 101 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 101 |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | all year | 101 |
| Solids, total suspended | monthly average | ≤ 41 kg/d | all year | 101 |
| Solids, total suspended | maximum weekly average | ≤ 61 kg/d | all year | 101 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 101 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.6 mg/L | May–Dec | 101 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 6.4 mg/L | Jan–Apr | 101 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 2.2 mg/L | May–Dec | 101 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 8.6 mg/L | Jan–Apr | 101 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 16.2 mg/L | Jan, Feb, Mar, Apr, Dec | 101 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 3 mg/L | May–Nov | 101 |
| Nitrogen, Kjeldahl, total [as N] | maximum weekly average | ≤ 24.3 mg/L | Jan, Feb, Mar, Apr, Dec | 101 |
| Nitrogen, Kjeldahl, total [as N] | maximum weekly average | ≤ 4.5 mg/L | May–Nov | 101 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 22 kg/d | Jan, Feb, Mar, Apr, Dec | 101 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 4.1 kg/d | May–Nov | 101 |
| Nitrogen, Kjeldahl, total [as N] | maximum weekly average | ≤ 33 kg/d | Jan, Feb, Mar, Apr, Dec | 101 |
| Nitrogen, Kjeldahl, total [as N] | maximum weekly average | ≤ 6.1 kg/d | May–Nov | 101 |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .36 MGD (alert, not enforceable) | all year | 101 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) (alert, not enforceable) | all year | 101 |
| Chlorine, total residual | instantaneous minimum | ≥ .6 mg/L | all year | 101 |
| E. coli | geometric mean | ≤ 126 #/100mL | all year | 101 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 12 mg/L | Jan, Feb, Mar, Apr, Dec | 101 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 13 mg/L | May–Nov | 101 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 18 mg/L | Jan, Feb, Mar, Apr, Dec | 101 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 20 mg/L | May–Nov | 101 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 16 kg/d | Jan, Feb, Mar, Apr, Dec | 101 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 17.7 kg/d | May–Nov | 101 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 25 kg/d | Jan, Feb, Mar, Apr, Dec | 101 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 27 kg/d | May–Nov | 101 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 101 |
| BOD, carb-5 day, 20 deg C, percent removal | monthly average minimum | ≥ 85 % | all year | 101 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 101 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Copper, total recoverable, monthly average | 33 ug/L | new | — | — |
| Copper, total recoverable, weekly average | 33 ug/L | new | — | — |
Cited limits by parameter: Virginia's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/VA0026247 · MCP: https://passage-data.com/mcp