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Sewerage Systems, Coaling, Alabama. NPDES permit AL0072427, in force until Sep 30, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| 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 | weekly average | ≤ 45 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 |
| 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, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | weekly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 001 |
| Nitrogen, total [as N] | weekly average | report only (lb/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | weekly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | weekly average | report only (lb/d) | all year | 001 |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, nitrate total [as N] | weekly average | report only (mg/L) | all year | 001 |
| Nitrogen, nitrate total [as N] | monthly average | report only (lb/d) | all year | 001 |
| Nitrogen, nitrate total [as N] | weekly average | report only (lb/d) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 20 mg/L | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | weekly average | ≤ 30 mg/L | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (lb/d) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | weekly average | report only (lb/d) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | weekly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 001 |
| Phosphorus, total [as P] | weekly average | report only (lb/d) | all year | 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 |
| 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 |
| Coliform, fecal general | monthly average | ≤ 2000 #/100mL | all year | 001 |
| Coliform, fecal general | daily maximum | ≤ 4000 #/100mL | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 45 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 67.5 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, 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 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW1 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW1 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW1 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW1 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Sep | MW1 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Mar, Sep | MW1 |
| Methylene blue active substances | daily maximum | report only (mg/L) | Mar, Sep | MW1 |
| E. coli | daily maximum | report only (#/100mL) | Mar, Sep | MW1 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | Mar, Sep | MW1 |
| Water level at sample collection time | daily maximum | report only (ft) | Mar, Sep | MW1 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW2 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW2 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW2 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW2 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Sep | MW2 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Mar, Sep | MW2 |
| Methylene blue active substances | daily maximum | report only (mg/L) | Mar, Sep | MW2 |
| E. coli | daily maximum | report only (#/100mL) | Mar, Sep | MW2 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | Mar, Sep | MW2 |
| Water level at sample collection time | daily maximum | report only (ft) | Mar, Sep | MW2 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW3 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW3 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW3 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW3 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Sep | MW3 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Mar, Sep | MW3 |
| Methylene blue active substances | daily maximum | report only (mg/L) | Mar, Sep | MW3 |
| E. coli | daily maximum | report only (#/100mL) | Mar, Sep | MW3 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | Mar, Sep | MW3 |
| Water level at sample collection time | daily maximum | report only (ft) | Mar, Sep | MW3 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW4 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW4 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW4 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW4 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Sep | MW4 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Mar, Sep | MW4 |
| Methylene blue active substances | daily maximum | report only (mg/L) | Mar, Sep | MW4 |
| E. coli | daily maximum | report only (#/100mL) | Mar, Sep | MW4 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | Mar, Sep | MW4 |
| Water level at sample collection time | daily maximum | report only (ft) | Mar, Sep | MW4 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW5 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW5 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW5 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW5 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Sep | MW5 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Mar, Sep | MW5 |
| Methylene blue active substances | daily maximum | report only (mg/L) | Mar, Sep | MW5 |
| E. coli | daily maximum | report only (#/100mL) | Mar, Sep | MW5 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | Mar, Sep | MW5 |
| Water level at sample collection time | daily maximum | report only (ft) | Mar, Sep | MW5 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW6 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW6 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW6 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW6 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Sep | MW6 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Mar, Sep | MW6 |
| Methylene blue active substances | daily maximum | report only (mg/L) | Mar, Sep | MW6 |
| E. coli | daily maximum | report only (#/100mL) | Mar, Sep | MW6 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | Mar, Sep | MW6 |
| Water level at sample collection time | daily maximum | report only (ft) | Mar, Sep | MW6 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW7 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW7 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW7 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Sep | MW7 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Sep | MW7 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Mar, Sep | MW7 |
| Methylene blue active substances | daily maximum | report only (mg/L) | Mar, Sep | MW7 |
| E. coli | daily maximum | report only (#/100mL) | Mar, Sep | MW7 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | Mar, Sep | MW7 |
| Water level at sample collection time | daily maximum | report only (ft) | Mar, Sep | MW7 |
Cited limits by parameter: Alabama's rules and the federal ones.
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