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Sewerage Systems, Summerdale, Alabama. NPDES permit AL0083470, in force until Nov 30, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 6 mg/L | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 750 lb/d | all year | 001 |
| Solids, total suspended | monthly average | ≤ 125 lb/d | all year | 001 |
| Solids, total suspended | weekly average | ≤ 1125 lb/d | all year | 001 |
| Solids, total suspended | weekly average | ≤ 187 lb/d | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | weekly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 001 |
| Solids, total suspended | weekly average | report only (lb/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 11 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 8.6 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 16.5 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 12.9 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 45.8 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 215 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 68.8 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 322 lb/d | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Apr–Oct | 001 |
| Nitrogen, Kjeldahl, total [as N] | weekly average | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | weekly average | report only (mg/L) | Apr–Oct | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (lb/d) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (lb/d) | Apr–Oct | 001 |
| Nitrogen, Kjeldahl, total [as N] | weekly average | report only (lb/d) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | weekly average | report only (lb/d) | Apr–Oct | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Apr–Oct | 001 |
| Nitrite + Nitrate total [as N] | weekly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | weekly average | report only (mg/L) | Apr–Oct | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (lb/d) | all year | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (lb/d) | Apr–Oct | 001 |
| Nitrite + Nitrate total [as N] | weekly average | report only (lb/d) | all year | 001 |
| Nitrite + Nitrate total [as N] | weekly average | report only (lb/d) | Apr–Oct | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Apr–Oct | 001 |
| Phosphorus, total [as P] | weekly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | weekly average | report only (mg/L) | Apr–Oct | 001 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | Apr–Oct | 001 |
| Phosphorus, total [as P] | weekly average | report only (lb/d) | all year | 001 |
| Phosphorus, total [as P] | weekly average | report only (lb/d) | Apr–Oct | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | monthly average | ≤ .218 mg/L | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .377 mg/L | all year | 001 |
| E. coli | monthly average | ≤ 548 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| E. coli | monthly average | ≤ 126 #/100mL | May–Oct | 001 |
| E. coli | daily maximum | ≤ 2507 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| E. coli | daily maximum | ≤ 298 #/100mL | May–Oct | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | single sample | ≤ 0 pass=0;fail=1 | Jan, Apr, Jul, Oct | 001 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | single sample | ≤ 0 pass=0;fail=1 | Jan, Apr, Jul, Oct | 001 |
| Mercury, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Mercury, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 23 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 34.5 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 37.5 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 95.9 lb/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 625 lb/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 143 lb/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 938 lb/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | report only (mg/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (lb/d) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | report only (lb/d) | all year | 001 |
| BOD, carb-5 day, 20 deg C, percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| pH | daily minimum | report only (SU) | all year | 002 |
| pH | daily maximum | report only (SU) | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 002 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| E. coli | daily maximum | report only (#/100mL) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 002 |
| pH | daily minimum | report only (SU) | all year | 004 |
| pH | daily maximum | report only (SU) | all year | 004 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 004 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 004 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 004 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 004 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 004 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| E. coli | daily maximum | report only (#/100mL) | all year | 004 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 004 |
| pH | daily minimum | report only (SU) | all year | 006 |
| pH | daily maximum | report only (SU) | all year | 006 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 006 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 006 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 006 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 006 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 006 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| E. coli | daily maximum | report only (#/100mL) | all year | 006 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 006 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 6 mg/L | all year | 01A |
| pH | daily minimum | ≥ 6 SU | all year | 01A |
| pH | daily maximum | ≤ 9 SU | all year | 01A |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 01A |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 01A |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 01A |
| Solids, total suspended | weekly average | report only (mg/L) | all year | 01A |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 01A |
| Solids, total suspended | weekly average | report only (lb/d) | all year | 01A |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 01A |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 01A |
| Chlorine, total residual | monthly average | ≤ .218 mg/L | all year | 01A |
| Chlorine, total residual | daily maximum | ≤ .377 mg/L | all year | 01A |
| E. coli | monthly average | ≤ 548 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 01A |
| E. coli | monthly average | ≤ 126 #/100mL | May–Oct | 01A |
| E. coli | daily maximum | ≤ 2507 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 01A |
| E. coli | daily maximum | ≤ 298 #/100mL | May–Oct | 01A |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 23 mg/L | all year | 01A |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 34.5 mg/L | all year | 01A |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 01A |
| BOD, carbonaceous [5 day, 20 C] | weekly average | report only (mg/L) | all year | 01A |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (lb/d) | all year | 01A |
| BOD, carbonaceous [5 day, 20 C] | weekly average | report only (lb/d) | all year | 01A |
| BOD, carb-5 day, 20 deg C, percent removal | monthly average minimum | ≥ 85 % | all year | 01A |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 01A |
| Oxygen, dissolved [DO] | daily minimum | ≥ 6 mg/L | all year | 01B |
| pH | daily minimum | ≥ 6 SU | all year | 01B |
| pH | daily maximum | ≤ 9 SU | all year | 01B |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 01B |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 01B |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 01B |
| Solids, total suspended | weekly average | report only (mg/L) | all year | 01B |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 01B |
| Solids, total suspended | weekly average | report only (lb/d) | all year | 01B |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 01B |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 01B |
| Chlorine, total residual | monthly average | ≤ .046 mg/L | all year | 01B |
| Chlorine, total residual | daily maximum | ≤ .079 mg/L | all year | 01B |
| E. coli | monthly average | ≤ 126 #/100mL | May–Oct | 01B |
| E. coli | monthly average | ≤ 548 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 01B |
| E. coli | daily maximum | ≤ 298 #/100mL | May–Oct | 01B |
| E. coli | daily maximum | ≤ 2507 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 01B |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | 01B |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 37.5 mg/L | all year | 01B |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 01B |
| BOD, carbonaceous [5 day, 20 C] | weekly average | report only (mg/L) | all year | 01B |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (lb/d) | all year | 01B |
| BOD, carbonaceous [5 day, 20 C] | weekly average | report only (lb/d) | all year | 01B |
| BOD, carb-5 day, 20 deg C, percent removal | monthly average minimum | ≥ 85 % | all year | 01B |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 01B |
Cited limits by parameter: Alabama's rules and the federal ones.
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