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Sewage treatment plant, major discharger, West Point, Mississippi. NPDES permit MS0020788, in force until May 31, 2027. Last 12 months: over a limit 4 times (last January 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Solids, suspended percent removal, minimum | 81 % | ≥ 85 % | 27% |
| January 2026 | BOD, 5-day, 20 deg. C, monthly average | 12.25 mg/L | ≤ 10 mg/L | 23% |
| January 2026 | BOD, 5-day, 20 deg. C, maximum weekly average | 30 mg/L | ≤ 15 mg/L | 100% |
| January 2026 | BOD, 5-day, 20 deg. C, maximum weekly average | 597 lb/d | ≤ 438 lb/d | 36% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | minimum | ≥ 6 mg/L | all year |
| Oxygen, dissolved [DO] | minimum | report only (mg/L) | all year |
| Oxygen, dissolved [DO] | maximum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10 mg/L | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 15 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 292 lb/d | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 438 lb/d | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | report only (lb/d) | all year |
| pH | minimum | ≥ 6 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 | ≤ 876 lb/d | all year |
| Solids, total suspended | maximum weekly average | ≤ 1314 lb/d | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | maximum weekly average | report only (mg/L) | all year |
| Solids, total suspended | monthly average | report only (lb/d) | all year |
| Solids, total suspended | maximum weekly average | report only (lb/d) | all year |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | maximum weekly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year |
| Nitrogen, total [as N] | maximum weekly average | report only (lb/d) | all year |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | maximum weekly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year |
| Nitrogen, total [as N] | maximum weekly average | report only (lb/d) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2 mg/L | all year |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 3 mg/L | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 58 lb/d | all year |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 88 lb/d | all year |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | maximum weekly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | all year |
| Nitrogen, ammonia total [as N] | maximum weekly average | report only (lb/d) | all year |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | maximum weekly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year |
| Phosphorus, total [as P] | maximum weekly average | report only (lb/d) | all year |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | maximum weekly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year |
| Phosphorus, total [as P] | maximum weekly average | report only (lb/d) | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 3.5 MGD | all year |
| Flow, in conduit or thru treatment plant | maximum weekly average | report only (MGD) | all year |
| Chlorine, total residual | monthly average | ≤ .011 mg/L | all year |
| Chlorine, total residual | maximum weekly average | ≤ .019 mg/L | all year |
| E. coli | monthly average | ≤ 126 #/100mL | all year |
| E. coli | maximum weekly average | ≤ 410 #/100mL | all year |
| BOD, 5-day, percent removal | minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | minimum | ≥ 85 % | all year |
| Sludge settleability 30 minute | minimum | report only (mL/L) | all year |
| Sludge settleability 30 minute | maximum | report only (mL/L) | all year |
Cited limits by parameter: Mississippi'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/MS0020788 · MCP: https://passage-data.com/mcp