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Sewage treatment plant, major discharger, California, Missouri. NPDES permit MO0023272, in force until Mar 31, 2031. Last 12 months: no values over a limit, 8 required values missing, 3 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 30 mg/L | May–Oct | 002 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 002 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 15 mg/L | May–Oct | 002 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 002 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 002 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ 15 mg/L | all year | 002 |
| Oil and grease [soxhlet extr.] tot. | monthly average | ≤ 10 mg/L | all year | 002 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, total [as N] | monthly maximum | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12.2 mg/L | Jul | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Oct, Nov, Dec | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.1 mg/L | Aug | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12.2 mg/L | Apr | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12.2 mg/L | Jun, Sep | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12.2 mg/L | May | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.5 mg/L | Jul | 002 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Oct, Nov, Dec | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.3 mg/L | Aug | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.8 mg/L | Apr | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.8 mg/L | Jun, Sep | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.3 mg/L | May | 002 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 002 |
| Copper, total recoverable | daily maximum | ≤ 26 ug/L | all year | 002 |
| Copper, total recoverable | monthly average | ≤ 16.4 ug/L | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| E. coli | 7-day geometric mean | ≤ 630 #/100mL | Apr–Oct | 002 |
| E. coli | 30-day geometric mean | ≤ 126 #/100mL | Apr–Oct | 002 |
| Flow, total | monthly total | report only (Mgal) | all year | 002 |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year | 002 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 002 |
| 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] | daily maximum | 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] | daily maximum | 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] | daily maximum | 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] | daily maximum | 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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