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Sewage treatment plant, Niobrara, Nebraska. NPDES permit NE0132641 expired Dec 2, 2024; its limits still apply. Last 12 months: no values over a limit, 3 required values missing, 2 of 8 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | ≤ 45 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 65 mg/L | all year | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 80 mg/L | all year | 001 |
| Solids, total suspended | weekly average | ≤ 120 mg/L | all year | 001 |
| Nitrogen, total [as N] | average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | average | report only (mg/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | average | ≤ 0 gal/d | all year | 001 |
| E. coli | average | report only (CFU/100mL) | all year | 001 |
| BOD, 5-day, percent removal | minimum | ≥ 65 % | all year | 001 |
| Solids, suspended percent removal | minimum | ≥ 65 % | all year | 001 |
| BOD, 5-day, 20 deg. C | average | report only (mg/L) | all year | 002 |
| Solids, total suspended | average | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | average | report only (gal/d) | all year | 002 |
Cited limits by parameter: Nebraska'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/NE0132641 · MCP: https://passage-data.com/mcp