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Sewerage Systems, Vance, Alabama. NPDES permit AL0084298, in force until Mar 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 6 mg/L | all year |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 8.5 SU | 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 | monthly average | ≤ 22.9 lb/d | all year |
| Solids, total suspended | weekly average | ≤ 34.3 lb/d | 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 | monthly 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 | ≤ 4 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2 mg/L | Apr–Oct |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 6 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 3 mg/L | Apr–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 lb/d | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .5 lb/d | Apr–Oct |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 1.5 lb/d | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | weekly average | ≤ .8 lb/d | 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] | monthly 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] | 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] | weekly average | report only (lb/d) | Apr–Oct |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Phosphorus, total [as P] | monthly average | ≤ .3 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) | Jan, Feb, Mar, Nov, Dec |
| Phosphorus, total [as P] | monthly 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 | daily maximum | report only (MGD) | all year |
| Chlorine, total residual | monthly average | ≤ .011 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | all year |
| E. coli | monthly average | ≤ 548 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec |
| E. coli | monthly average | ≤ 126 #/100mL | May–Oct |
| E. coli | daily maximum | ≤ 2507 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec |
| E. coli | daily maximum | ≤ 298 #/100mL | May–Oct |
| Toxicity [chronic], Ceriodaphnia dubia | single sample | ≤ 0 pass=0;fail=1 | Feb, May, Aug, Nov |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | single sample | ≤ 0 pass=0;fail=1 | Feb, May, Aug, Nov |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 7 mg/L | Apr–Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 11 mg/L | Jan, Feb, Mar, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 10.5 mg/L | Apr–Oct |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 16.5 mg/L | Jan, Feb, Mar, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 1.8 lb/d | Apr–Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 2.8 lb/d | Jan, Feb, Mar, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 2.7 lb/d | Apr–Oct |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 4.2 lb/d | Jan, Feb, Mar, Nov, Dec |
| 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] | monthly 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 |
| 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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