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Sewerage Systems, Windsor, Virginia. NPDES permit VA0067318, in force until Aug 31, 2029. Last 12 months: over a limit 3 times (last July 2026), 1 of 14 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| July 2026 | Solids, total suspended, monthly average | 1.635 | ≤ 1.5 kg/d | 9% |
| July 2026 | Solids, total suspended, monthly average | 16 | ≤ 10 mg/L | 60% |
| July 2026 | Solids, total suspended, weekly average | 16 | ≤ 15 mg/L | 7% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | minimum | ≥ 6 mg/L | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 10 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 15 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 1.5 kg/d | all year |
| Solids, total suspended | weekly average | ≤ 2.3 kg/d | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.1 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 3.1 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 3 mg/L | Apr–Oct |
| Nitrogen, Kjeldahl, total [as N] | weekly average | ≤ 4.5 mg/L | Apr–Oct |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ .45 kg/d | Apr–Oct |
| Nitrogen, Kjeldahl, total [as N] | weekly average | ≤ .68 kg/d | Apr–Oct |
| Zinc, total recoverable | monthly average | ≤ 130 ug/L | all year |
| Zinc, total recoverable | weekly average | ≤ 130 ug/L | all year |
| Cadmium, total recoverable | monthly average | ≤ 1.9 ug/L | all year |
| Cadmium, total recoverable | weekly average | ≤ 1.9 ug/L | all year |
| Copper, total recoverable | monthly average | ≤ 19 ug/L | all year |
| Copper, total recoverable | weekly average | ≤ 19 ug/L | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .04 MGD (alert, not enforceable) | all year |
| Flow, in conduit or thru treatment plant | maximum | report only (MGD) (alert, not enforceable) | all year |
| Chlorine, total residual | monthly average | ≤ .02 mg/L | all year |
| Chlorine, total residual | weekly average | ≤ .02 mg/L | all year |
| Chlorine, total residual | minimum | ≥ .6 mg/L | all year |
| E. coli | monthly average | ≤ 126 #/100mL | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 15 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 1.5 kg/d | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 2.3 kg/d | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year |
| BOD, carb-5 day, 20 deg C, percent removal | monthly average minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year |
Cited limits by parameter: Virginia's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/VA0067318 · MCP: https://passage-data.com/mcp