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Sewage treatment plant, Washburn, Missouri. NPDES permit MO0109355 expired Dec 31, 2025; its limits still apply. Last 12 months: no values over a limit, 1 of 25 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Rainfall | total | report only (in) | all year |
| Rainfall | monthly total | report only (in) | all year |
| Application rate area sprayed | total | report only (acr) | all year |
| Application rate area sprayed | monthly total | report only (acr) | all year |
| Application rate, gallons spray irrigation | total | report only (gal) | all year |
| Application rate, gallons spray irrigation | monthly total | report only (gal) | all year |
| Depth to water level ft below landsurface | daily maximum | report only (ft) | all year |
| Spray irrigation | total | report only (hr/d) | all year |
| Spray irrigation | monthly total | report only (hr/d) | all year |
| Spray irrigation, application rate | total | report only (in/d) | all year |
| Spray irrigation, application rate | monthly total | report only (in/d) | all year |
Cited limits by parameter: Missouri'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/MO0109355 · MCP: https://passage-data.com/mcp