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Sewage treatment plant, Jackson, Mississippi. NPDES permit MS0030295, in force until Feb 28, 2029. Last 12 months: no values over a limit, 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | minimum | ≥ 6 mg/L | all year |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 6 mg/L | May–Oct |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 8 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 9 mg/L | May–Oct |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 12 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 37.5 lb/d | May–Oct |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 50 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 56.3 lb/d | May–Oct |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 75 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| BOD, 5-day, 20 deg. C | maximum monthly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | maximum monthly average | report only (lb/d) | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | report only (lb/d) | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | maximum monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | all year |
| Solids, total suspended | maximum monthly average | ≤ 187.7 lb/d | all year |
| Solids, total suspended | maximum weekly average | ≤ 281.5 lb/d | all year |
| Solids, total suspended | maximum monthly average | report only (mg/L) | all year |
| Solids, total suspended | maximum weekly average | report only (mg/L) | all year |
| Solids, total suspended | maximum monthly average | report only (lb/d) | all year |
| Solids, total suspended | maximum weekly average | report only (lb/d) | all year |
| Nitrogen, total [as N] | maximum monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | maximum weekly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | maximum monthly average | report only (lb/d) | all year |
| Nitrogen, total [as N] | maximum weekly average | report only (lb/d) | all year |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 1.5 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 2 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 2.25 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 3 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 9.4 lb/d | May–Oct |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 12.51 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 14.1 lb/d | May–Oct |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 18.77 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | maximum monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | maximum weekly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | maximum monthly average | report only (lb/d) | all year |
| Nitrogen, ammonia total [as N] | maximum weekly average | report only (lb/d) | all year |
| Phosphorus, total [as P] | maximum monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | maximum weekly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | maximum monthly average | report only (lb/d) | all year |
| Phosphorus, total [as P] | maximum weekly average | report only (lb/d) | all year |
| Flow, in conduit or thru treatment plant | maximum monthly average | ≤ .75 MGD | all year |
| Flow, in conduit or thru treatment plant | maximum weekly average | report only (MGD) | all year |
| Chlorine, total residual | maximum monthly average | ≤ .011 mg/L | all year |
| Chlorine, total residual | maximum weekly average | ≤ .019 mg/L | all year |
| E. coli | maximum monthly average | report only (#/100mL) | all year |
| E. coli | maximum weekly average | report only (#/100mL) | all year |
| BOD, 5-day, percent removal | minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | minimum | ≥ 85 % | all year |
Cited limits by parameter: Mississippi's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MS0030295 · MCP: https://passage-data.com/mcp