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Sewage treatment plant, Sweet Springs, Missouri. NPDES permit MO0054518, in force until Apr 30, 2028. Last 12 months: over a limit 7 times (last December 2025), 226 required values missing, 4 of 26 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | BOD, 5-day, percent removal, monthly average minimum | 72 | ≥ 85 % | 87% |
| December 2025 | Copper, total recoverable, monthly average | 13 | ≤ 8.4 ug/L | 55% |
| December 2025 | Nitrogen, ammonia total [as N], daily maximum | 12.9 | ≤ 8.4 mg/L | 54% |
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 12.9 | ≤ 2.4 mg/L | 438% |
| December 2025 | Solids, suspended percent removal, monthly average minimum | 57 | ≥ 85 % | 187% |
| December 2025 | Solids, total suspended, monthly average | 52 | ≤ 30 mg/L | 73% |
| December 2025 | Solids, total suspended, weekly average | 52 | ≤ 45 mg/L | 16% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 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 | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 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 | ≤ 6.9 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6.9 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8.4 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8.4 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8.4 mg/L | Jan, Feb, Mar, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6.9 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6.9 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6.9 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.1 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.8 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.6 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.4 mg/L | Jan, Feb, Mar, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .8 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.9 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 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 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 001 |
| Zinc, total recoverable | daily maximum | ≤ 216 ug/L | all year | 001 |
| Zinc, total recoverable | monthly average | ≤ 78.6 ug/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ 26.9 ug/L | all year | 001 |
| Copper, total recoverable | monthly average | ≤ 8.4 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] | 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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