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Sewage treatment plant, major discharger, Clinton, Missouri. NPDES permit MO0097390, in force until May 31, 2028. Last 12 months: over a limit once (last July 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| July 2026 | Nitrogen, ammonia total [as N], monthly average | 1.38 | ≤ 1.2 mg/L | 15% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | weekly average | ≤ 30 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | all year | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | weekly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 001 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 001 |
| Oil and grease [soxhlet extr.] tot. | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12.1 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12.1 mg/L | Jan, Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.1 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.1 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12.1 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12.1 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.1 mg/L | Feb, Mar, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12.1 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12.1 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.8 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.4 mg/L | Jan, Nov | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.5 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.2 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.4 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.8 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3 mg/L | Feb, Mar, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.1 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.6 mg/L | Jun | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Copper, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| E. coli | 7-day geometric mean | ≤ 630 #/100mL | Apr–Oct | 001 |
| E. coli | 30-day geometric mean | ≤ 126 #/100mL | Apr–Oct | 001 |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | INF |
| Solids, total suspended | monthly average | report only (mg/L) | all year | INF |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | INF |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | INF |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | INF |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | INF |
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/MO0097390 · MCP: https://passage-data.com/mcp