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Sewage treatment plant, Decatur, Alabama. NPDES permit AL0060577 expired Oct 31, 2026. Last 12 months: over a limit 11 times (last September 2026), 108 required values missing, 7 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | BOD, carbonaceous [5 day, 20 C], monthly average | 26 | ≤ 25 mg/L | 4% |
| October 2025 | E. coli, daily maximum | 275 | ≤ 235 #/100mL | 17% |
| December 2025 | E. coli, daily maximum | 565 | ≤ 235 #/100mL | 140% |
| January 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 28 | ≤ 25 mg/L | 12% |
| January 2026 | E. coli, daily maximum | 9210 | ≤ 235 #/100mL | 3819% |
| January 2026 | E. coli, monthly average | 487 | ≤ 126 #/100mL | 287% |
| July 2026 | BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum | 79.7 | ≥ 85 % | 35% |
| July 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 48 | ≤ 25 mg/L | 92% |
| July 2026 | BOD, carbonaceous [5 day, 20 C], weekly average | 60.9 | ≤ 37.5 mg/L | 62% |
| July 2026 | E. coli, daily maximum | 504 | ≤ 235 #/100mL | 114% |
| September 2026 | Solids, total suspended, monthly average | 92.5 | ≤ 90 mg/L | 3% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 90 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 90 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 135 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 135 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 187 lb/d | all year |
| Solids, total suspended | monthly average | ≤ 450 lb/d | all year |
| Solids, total suspended | weekly average | ≤ 281 lb/d | all year |
| Solids, total suspended | weekly average | ≤ 675 lb/d | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | weekly average | report only (mg/L) | all year |
| Solids, total suspended | weekly average | report only (mg/L) | all year |
| Solids, total suspended | monthly average | report only (lb/d) | all year |
| Solids, total suspended | monthly average | report only (lb/d) | all year |
| Solids, total suspended | weekly average | report only (lb/d) | all year |
| Solids, total suspended | weekly average | report only (lb/d) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 20 mg/L | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 20 mg/L | all year |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 30 mg/L | all year |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 30 mg/L | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 41.7 lb/d | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 100 lb/d | all year |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 62.5 lb/d | all year |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 150 lb/d | all year |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Apr–Oct |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Apr–Oct |
| Nitrogen, Kjeldahl, total [as N] | weekly average | report only (mg/L) | Apr–Oct |
| Nitrogen, Kjeldahl, total [as N] | weekly average | report only (mg/L) | Apr–Oct |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (lb/d) | Apr–Oct |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (lb/d) | Apr–Oct |
| Nitrogen, Kjeldahl, total [as N] | weekly average | report only (lb/d) | Apr–Oct |
| Nitrogen, Kjeldahl, total [as N] | weekly average | report only (lb/d) | Apr–Oct |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Apr–Oct |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Apr–Oct |
| Nitrite + Nitrate total [as N] | weekly average | report only (mg/L) | Apr–Oct |
| Nitrite + Nitrate total [as N] | weekly average | report only (mg/L) | Apr–Oct |
| Nitrite + Nitrate total [as N] | monthly average | report only (lb/d) | Apr–Oct |
| Nitrite + Nitrate total [as N] | monthly average | report only (lb/d) | Apr–Oct |
| Nitrite + Nitrate total [as N] | weekly average | report only (lb/d) | Apr–Oct |
| Nitrite + Nitrate total [as N] | weekly average | report only (lb/d) | Apr–Oct |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Apr–Oct |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Apr–Oct |
| Phosphorus, total [as P] | weekly average | report only (mg/L) | Apr–Oct |
| Phosphorus, total [as P] | weekly average | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Phosphorus, total [as P] | weekly average | report only (mg/L) | Apr–Oct |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | Apr–Oct |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | Jan, Feb, Mar, Nov, Dec |
| Phosphorus, total [as P] | monthly average | ≤ 8.65 lb/d | Apr–Oct |
| Phosphorus, total [as P] | weekly average | report only (lb/d) | Apr–Oct |
| Phosphorus, total [as P] | weekly average | report only (lb/d) | Jan, Feb, Mar, Nov, Dec |
| Phosphorus, total [as P] | weekly average | report only (lb/d) | Apr–Oct |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Chlorine, total residual | daily maximum | ≤ 1 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ 1 mg/L | all year |
| E. coli | monthly average | ≤ 126 #/100mL | all year |
| E. coli | monthly average | ≤ 126 #/100mL | all year |
| E. coli | daily maximum | ≤ 235 #/100mL | all year |
| E. coli | daily maximum | ≤ 235 #/100mL | all year |
| Peracetic Acid | daily maximum | ≤ 1 mg/L | all year |
| Peracetic Acid | daily maximum | ≤ 1 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 37.5 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 37.5 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 52.1 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 125 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 78.1 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 187 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (lb/d) | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (lb/d) | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | report only (lb/d) | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | report only (lb/d) | all year |
| BOD, carb-5 day, 20 deg C, percent removal | monthly average minimum | ≥ 85 % | all year |
| BOD, carb-5 day, 20 deg C, percent removal | monthly average minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 65 % | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 65 % | all year |
Cited limits by parameter: Alabama's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
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