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Sewerage Systems, Linden, Virginia. NPDES permit VA0089958, in force until Sep 30, 2028. Last 12 months: over a limit 5 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| January 2026 | E. coli, monthly geometric mean | > 154 | ≤ 126 #/100mL | — |
| March 2026 | E. coli, monthly geometric mean | 248 | ≤ 126 #/100mL | 97% |
| July 2026 | Nitrogen, ammonia total [as N], weekly average | 3.7 | ≤ 1.8 mg/L | 106% |
| July 2026 | Oxygen, dissolved [DO], minimum | 6.6 | ≥ 7.1 mg/L | 7% |
| August 2026 | Oxygen, dissolved [DO], minimum | 6.5 | ≥ 7.1 mg/L | 8% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | minimum | ≥ 7.1 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ .62 kg/d | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ .94 kg/d | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | all year |
| Solids, total suspended | monthly average | ≤ .62 kg/d | all year |
| Solids, total suspended | maximum weekly average | ≤ .94 kg/d | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.8 mg/L | all year |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 1.8 mg/L | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .0055 MGD (alert, not enforceable) | all year |
| Flow, in conduit or thru treatment plant | weekly average | report only (MGD) (alert, not enforceable) | all year |
| BOD, percent removal [total] | monthly average minimum | ≥ 85 % | all year |
| E. coli | monthly geometric mean | ≤ 126 #/100mL | 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/VA0089958 · MCP: https://passage-data.com/mcp