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Sewage treatment plant, Cleveland, Mississippi. NPDES permit MS0055913 expired Jul 31, 2025; its limits still apply. Last 12 months: over a limit 24 times (last August 2026), 220 required values missing, 8 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Flow, in conduit or thru treatment plant, monthly average | .1758 MGD | ≤ .085 MGD | 107% |
| October 2025 | Flow, in conduit or thru treatment plant, monthly average | .1758 MGD | ≤ .085 MGD | 107% |
| October 2025 | Nitrogen, total [as N], maximum monthly average | 23.9 mg/L | ≤ 17.3 mg/L | 38% |
| October 2025 | Nitrogen, total [as N], maximum monthly average | 23.9 mg/L | ≤ 17.3 mg/L | 38% |
| October 2025 | Nitrogen, total [as N], monthly average | 23.9 mg/L | ≤ 11.5 mg/L | 108% |
| October 2025 | Nitrogen, total [as N], monthly average | 23.9 mg/L | ≤ 11.5 mg/L | 108% |
| November 2025 | Nitrogen, ammonia total [as N], monthly average | 3.75 mg/L | ≤ 2 mg/L | 88% |
| November 2025 | Nitrogen, ammonia total [as N], monthly average | 3.75 mg/L | ≤ 2 mg/L | 88% |
| November 2025 | Nitrogen, ammonia total [as N], maximum weekly average | 3.75 mg/L | ≤ 3 mg/L | 25% |
| November 2025 | Nitrogen, ammonia total [as N], maximum weekly average | 3.75 mg/L | ≤ 3 mg/L | 25% |
| December 2025 | Nitrogen, total [as N], maximum monthly average | 75 mg/L | ≤ 17.3 mg/L | 334% |
| December 2025 | Nitrogen, total [as N], monthly average | 11.44 lb/d | ≤ 8.16 lb/d | 40% |
| December 2025 | Nitrogen, total [as N], monthly average | 75 mg/L | ≤ 11.5 mg/L | 552% |
| December 2025 | Solids, total suspended, monthly average | 88 mg/L | ≤ 30 mg/L | 193% |
| December 2025 | Solids, total suspended, maximum weekly average | 88 mg/L | ≤ 45 mg/L | 96% |
| May 2026 | Nitrogen, total [as N], maximum monthly average | 47 mg/L | ≤ 17.3 mg/L | 172% |
| May 2026 | Nitrogen, total [as N], monthly average | 46.9 lb/d | ≤ 8.16 lb/d | 475% |
| May 2026 | Nitrogen, total [as N], monthly average | 47 mg/L | ≤ 11.5 mg/L | 309% |
| May 2026 | Nitrogen, total [as N], maximum weekly average | 46.9 lb/d | ≤ 12.24 lb/d | 283% |
| May 2026 | Oxygen, dissolved [DO], minimum | .1197 mg/L | ≥ 6 mg/L | 98% |
| July 2026 | Nitrogen, total [as N], maximum monthly average | 26.3 mg/L | ≤ 17.3 mg/L | 52% |
| July 2026 | Nitrogen, total [as N], monthly average | 11.3 lb/d | ≤ 8.16 lb/d | 38% |
| July 2026 | Nitrogen, total [as N], monthly average | 26.3 mg/L | ≤ 11.5 mg/L | 129% |
| August 2026 | Flow, in conduit or thru treatment plant, monthly average | .1006 MGD | ≤ .085 MGD | 18% |
| 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 | ≤ 7 lb/d | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 10.6 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 | ≤ 21.3 lb/d | all year |
| Solids, total suspended | maximum weekly average | ≤ 32 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 | ≤ 11.5 mg/L | all year |
| Nitrogen, total [as N] | maximum monthly average | ≤ 17.3 mg/L | all year |
| Nitrogen, total [as N] | monthly average | ≤ 8.16 lb/d | all year |
| Nitrogen, total [as N] | maximum weekly average | ≤ 12.24 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 | ≤ 1.4 lb/d | all year |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 2.1 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 | ≤ .085 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 | ≤ .017 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/MS0055913 · MCP: https://passage-data.com/mcp