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Sewage treatment plant, Lost Nation, Iowa. NPDES permit IA0036544, in force until Sep 30, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Chloride [as Cl] | 30-day average | report only (mg/L) | all year |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year |
| Chloride [as Cl] | 30-day average | report only (lb/d) | all year |
| Chloride [as Cl] | daily maximum | report only (lb/d) | all year |
| E. coli | 30-day average | report only (#/100mL) | all year |
| E. coli | daily maximum | report only (#/100mL) | all year |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| E. coli, geometric mean | 366 #/100mL (Mar–Nov) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 3.7 mg/L (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 25 lb/d (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 26.6 lb/d (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 3.9 mg/L (Mar) | 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/IA0036544 · MCP: https://passage-data.com/mcp