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Sewage treatment plant, Bancroft, Iowa. NPDES permit IA0057762, in force until Jul 31, 2030. Last 12 months: over a limit once (last June 2026), 3 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| June 2026 | Chloride [as Cl], 30-day average | 400 | ≤ 391 mg/L | 2% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | daily minimum | ≥ 6.5 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | 30-day average | ≤ 80 mg/L | all year |
| Solids, total suspended | 7-day average | ≤ 120 mg/L | all year |
| Chloride [as Cl] | 30-day average | ≤ 391 mg/L | all year |
| Chloride [as Cl] | daily maximum | ≤ 629 mg/L | all year |
| Chloride [as Cl] | 30-day average | ≤ 8184 lb/d | all year |
| Chloride [as Cl] | daily maximum | ≤ 13172 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | 30-day average | ≤ 25 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 40 mg/L | all year |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Nitrogen, ammonia total [as N], 30-day average | 2.4 mg/L (Nov) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 74.3 lb/d (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 2.6 mg/L (May) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 1.6 mg/L (Oct) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 4.1 mg/L (Feb) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 53.4 lb/d (May) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 3.5 mg/L (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 50.9 lb/d (Nov) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 34.1 lb/d (Oct) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 86.3 lb/d (Feb) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 40.3 lb/d (Jun) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 1.9 mg/L (Jun) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 54.3 lb/d (Dec) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 2.6 mg/L (Dec) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 74.4 lb/d (Jan) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 3.6 mg/L (Jan) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 18.8 lb/d (Aug) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 0.9 mg/L (Aug) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 1 mg/L (Jul) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 20.9 lb/d (Jul) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 46.8 lb/d (Apr) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 2.2 mg/L (Apr) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 1.1 mg/L (Sep) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 23.1 lb/d (Sep) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 55.6 lb/d (Oct) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 2.7 mg/L (Oct) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 8.4 mg/L (Feb) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 3.9 mg/L (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 68.2 lb/d (May) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 3.3 mg/L (May) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 81.5 lb/d (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 2.7 mg/L (Nov) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 176.2 lb/d (Feb) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 55.6 lb/d (Nov) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 68.2 lb/d (Jun) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 3.3 mg/L (Jun) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 3.9 mg/L (Dec) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 81.4 lb/d (Dec) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 19.9 mg/L (Jan) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 416.6 lb/d (Jan) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 0.9 mg/L (Aug) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 18.8 lb/d (Aug) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 20.9 lb/d (Jul) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 1 mg/L (Jul) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 4.8 mg/L (Apr) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 99.6 lb/d (Apr) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 55.6 lb/d (Sep) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 2.7 mg/L (Sep) | new | — | — |
Cited limits by parameter: Iowa'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/IA0057762 · MCP: https://passage-data.com/mcp