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Sewage treatment plant, major discharger, Canton, Mississippi. NPDES permit MS0042455, in force until Feb 28, 2027. Last 12 months: over a limit 19 times (last February 2026), 82 required values missing, 8 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | BOD, 5-day, 20 deg. C, annual average | 7508.06 lb/d | ≤ 650 lb/d | 1055% |
| December 2025 | E. coli, monthly average | 224 #/100mL | ≤ 126 #/100mL | 78% |
| December 2025 | Flow, in conduit or thru treatment plant, annual average | 13.6606 MGD | ≤ 2.6 MGD | 425% |
| December 2025 | Nitrogen, ammonia total [as N], annual average | 1252.78 lb/d | ≤ 216.84 lb/d | 478% |
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 15.5 mg/L | ≤ 10 mg/L | 55% |
| December 2025 | Nitrogen, total [as N], annual average | 3176.28 lb/d | ≤ 249.4 lb/d | 1174% |
| December 2025 | Phosphorus, total [as P], annual average | 664.41 lb/d | ≤ 84.6 lb/d | 685% |
| December 2025 | Solids, suspended percent removal, minimum | 61 % | ≥ 65 % | 11% |
| December 2025 | Solids, total suspended, annual average | 9782.58 lb/d | ≤ 1952 lb/d | 401% |
| January 2026 | BOD, 5-day, 20 deg. C, monthly average | 47 mg/L | ≤ 30 mg/L | 57% |
| January 2026 | E. coli, monthly average | 2420 #/100mL | ≤ 126 #/100mL | 1821% |
| January 2026 | E. coli, maximum weekly average | 2420 #/100mL | ≤ 410 #/100mL | 490% |
| January 2026 | Solids, suspended percent removal, minimum | 17 % | ≥ 65 % | 137% |
| January 2026 | Solids, total suspended, monthly average | 110 mg/L | ≤ 90 mg/L | 22% |
| February 2026 | BOD, 5-day, 20 deg. C, monthly average | 37 mg/L | ≤ 30 mg/L | 23% |
| February 2026 | E. coli, monthly average | 2420 #/100mL | ≤ 126 #/100mL | 1821% |
| February 2026 | E. coli, maximum weekly average | 2420 #/100mL | ≤ 410 #/100mL | 490% |
| February 2026 | Solids, suspended percent removal, minimum | 57 % | ≥ 65 % | 23% |
| February 2026 | Solids, total suspended, monthly average | 124 mg/L | ≤ 90 mg/L | 38% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | minimum | ≥ 6 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly total | report only (lb/mo) | all year | 001 |
| BOD, 5-day, 20 deg. C | annual average | ≤ 650 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly total | report only (lb/mo) | all year | 001 |
| BOD, 5-day, 20 deg. C | annual average | report only (lb/d) | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 90 mg/L | all year | 001 |
| Solids, total suspended | monthly total | report only (lb/mo) | all year | 001 |
| Solids, total suspended | annual average | ≤ 1952 lb/d | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly total | report only (lb/mo) | all year | 001 |
| Solids, total suspended | annual average | report only (lb/d) | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | monthly total | report only (lb/mo) | all year | 001 |
| Nitrogen, total [as N] | annual average | ≤ 249.4 lb/d | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | maximum weekly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | annual average | report only (lb/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 10 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly total | report only (lb/mo) | all year | 001 |
| Nitrogen, ammonia total [as N] | annual average | ≤ 216.84 lb/d | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly total | report only (lb/mo) | all year | 001 |
| Phosphorus, total [as P] | annual average | ≤ 84.6 lb/d | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | maximum weekly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | annual average | report only (lb/d) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | 001 |
| Flow, in conduit or thru treatment plant | annual average | ≤ 2.6 MGD | all year | 001 |
| E. coli | monthly average | ≤ 126 #/100mL | all year | 001 |
| E. coli | maximum weekly average | ≤ 410 #/100mL | all year | 001 |
| BOD, 5-day, percent removal | minimum | ≥ 65 % | all year | 001 |
| Solids, suspended percent removal | minimum | ≥ 65 % | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly total | report only (lb/mo) | all year | 003 |
| BOD, 5-day, 20 deg. C | annual average | ≤ 78 lb/d | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly total | report only (lb/mo) | all year | 003 |
| BOD, 5-day, 20 deg. C | annual average | report only (lb/d) | all year | 003 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | monthly average | ≤ 90 mg/L | all year | 003 |
| Solids, total suspended | monthly total | report only (lb/mo) | all year | 003 |
| Solids, total suspended | annual average | ≤ 233 lb/d | all year | 003 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 003 |
| Solids, total suspended | monthly total | report only (lb/mo) | all year | 003 |
| Solids, total suspended | annual average | report only (lb/d) | all year | 003 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 003 |
| Nitrogen, total [as N] | monthly total | report only (lb/mo) | all year | 003 |
| Nitrogen, total [as N] | annual average | ≤ 29.73 lb/d | all year | 003 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 003 |
| Nitrogen, total [as N] | maximum weekly average | report only (mg/L) | all year | 003 |
| Nitrogen, total [as N] | annual average | report only (lb/d) | all year | 003 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | monthly total | report only (lb/mo) | all year | 003 |
| Phosphorus, total [as P] | annual average | ≤ 10.08 lb/d | all year | 003 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | maximum weekly average | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | annual average | report only (lb/d) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | 003 |
| Flow, in conduit or thru treatment plant | annual average | ≤ .31 MGD | all year | 003 |
| E. coli | monthly average | ≤ 126 #/100mL | all year | 003 |
| E. coli | maximum weekly average | ≤ 410 #/100mL | all year | 003 |
| BOD, 5-day, percent removal | minimum | ≥ 65 % | all year | 003 |
| Solids, suspended percent removal | minimum | ≥ 65 % | all year | 003 |
Cited limits by parameter: Mississippi's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
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