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Sewerage Systems, Ider, Alabama. NPDES permit AL0043851, in force until May 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | all year |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 8.5 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 5.75 lb/d | all year |
| Solids, total suspended | weekly average | ≤ 8.63 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 | ≤ 1.2 mg/L | May–Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.8 mg/L | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 1.8 mg/L | May–Nov |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 2.7 mg/L | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .23 lb/d | May–Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .34 lb/d | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | weekly average | ≤ .34 lb/d | May–Nov |
| Nitrogen, ammonia total [as N] | weekly average | ≤ .51 lb/d | Jan, Feb, Mar, Apr, Dec |
| 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) | Apr–Oct |
| 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] | 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 | ≤ 126 #/100mL | all year |
| E. coli | daily maximum | ≤ 235 #/100mL | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 11 mg/L | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 14 mg/L | Jan, Feb, Mar, Apr, Dec |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 16.5 mg/L | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 21 mg/L | Jan, Feb, Mar, Apr, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 2.11 lb/d | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 2.68 lb/d | Jan, Feb, Mar, Apr, Dec |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 3.16 lb/d | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 4.02 lb/d | Jan, Feb, Mar, Apr, 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 | ≥ 85 % | all year |
Cited limits by parameter: Alabama's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/AL0043851 · MCP: https://passage-data.com/mcp