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Sewage treatment plant, Bloomfield, Missouri. NPDES permit MO0050326, in force until Jun 30, 2029. Last 12 months: over a limit 40 times (last August 2026), 2 of 29 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Copper, total recoverable, daily maximum | 15.6 | ≤ 13.1 ug/L | 19% |
| October 2025 | Copper, total recoverable, monthly average | 12.7 | ≤ 4.2 ug/L | 202% |
| November 2025 | BOD, 5-day, percent removal, monthly average minimum | 82 | ≥ 85 % | 20% |
| November 2025 | Copper, total recoverable, monthly average | 9.05 | ≤ 4.2 ug/L | 115% |
| December 2025 | Chloride, monthly average | 314 | ≤ 182.4 mg/L | 72% |
| December 2025 | Copper, total recoverable, monthly average | 8.92 | ≤ 4.2 ug/L | 112% |
| December 2025 | Iron, total recoverable, monthly average | 695 | ≤ 683.6 ug/L | 2% |
| January 2026 | Chloride, monthly average | 339 | ≤ 182.4 mg/L | 86% |
| January 2026 | Copper, total recoverable, daily maximum | 13.6 | ≤ 13.1 ug/L | 4% |
| January 2026 | Copper, total recoverable, monthly average | 12.3 | ≤ 4.2 ug/L | 193% |
| January 2026 | Iron, total recoverable, monthly average | 875 | ≤ 683.6 ug/L | 28% |
| February 2026 | Chloride, monthly average | 188 | ≤ 182.4 mg/L | 3% |
| February 2026 | Copper, total recoverable, monthly average | 9.7 | ≤ 4.2 ug/L | 131% |
| February 2026 | Iron, total recoverable, monthly average | 693 | ≤ 683.6 ug/L | 1% |
| February 2026 | Nitrogen, ammonia total [as N], monthly average | 7.2 | ≤ 3.1 mg/L | 132% |
| March 2026 | BOD, 5-day, percent removal, monthly average minimum | 72 | ≥ 85 % | 87% |
| March 2026 | Copper, total recoverable, monthly average | 7.8 | ≤ 4.2 ug/L | 86% |
| March 2026 | Nitrogen, ammonia total [as N], daily maximum | 15.5 | ≤ 12.1 mg/L | 28% |
| March 2026 | Nitrogen, ammonia total [as N], monthly average | 6.69 | ≤ 3.1 mg/L | 116% |
| April 2026 | BOD, 5-day, percent removal, monthly average minimum | 76 | ≥ 85 % | 60% |
| April 2026 | Chloride, daily maximum | 494 | ≤ 393.5 mg/L | 26% |
| April 2026 | Chloride, monthly average | 494 | ≤ 182.4 mg/L | 171% |
| April 2026 | Copper, total recoverable, daily maximum | 48.2 | ≤ 13.1 ug/L | 268% |
| April 2026 | Copper, total recoverable, monthly average | 23.4 | ≤ 4.2 ug/L | 457% |
| April 2026 | E. coli, 30-day geometric mean | 913 | ≤ 206 #/100mL | 343% |
| April 2026 | E. coli, 7-day geometric mean | 2420 | ≤ 1030 #/100mL | 135% |
| April 2026 | Iron, total recoverable, monthly average | 1150 | ≤ 683.6 ug/L | 68% |
| May 2026 | BOD, 5-day, percent removal, monthly average minimum | 83 | ≥ 85 % | 13% |
| May 2026 | Copper, total recoverable, daily maximum | 23.6 | ≤ 13.1 ug/L | 80% |
| May 2026 | Copper, total recoverable, monthly average | 13.45 | ≤ 4.2 ug/L | 220% |
| May 2026 | E. coli, 30-day geometric mean | 579.5 | ≤ 206 #/100mL | 181% |
| May 2026 | E. coli, 7-day geometric mean | 1990 | ≤ 1030 #/100mL | 93% |
| June 2026 | Copper, total recoverable, daily maximum | 26 | ≤ 13.1 ug/L | 98% |
| June 2026 | Copper, total recoverable, monthly average | 17.45 | ≤ 4.2 ug/L | 315% |
| June 2026 | Iron, total recoverable, monthly average | 695 | ≤ 683.6 ug/L | 2% |
| June 2026 | Solids, suspended percent removal, monthly average minimum | 81 | ≥ 85 % | 27% |
| August 2026 | Chloride, daily maximum | 439 | ≤ 393.5 mg/L | 12% |
| August 2026 | Chloride, monthly average | 439 | ≤ 182.4 mg/L | 141% |
| August 2026 | Copper, total recoverable, monthly average | 7.61 | ≤ 4.2 ug/L | 81% |
| August 2026 | E. coli, 30-day geometric mean | 399.2 | ≤ 206 #/100mL | 94% |
| 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 | ≤ 12.1 mg/L | Jul | 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 | Jun | 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 | Aug | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12.1 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12.1 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.5 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.9 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.8 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.3 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.6 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.8 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.1 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 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 |
| Cyanide, free [amenable to chlorination] | daily maximum | report only (ug/L) | all year | 001 |
| Cyanide, free [amenable to chlorination] | monthly average | report only (ug/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 |
| Fluoride | daily maximum | report only (mg/L) | all year | 001 |
| Fluoride | monthly average | report only (mg/L) | all year | 001 |
| Cobalt, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Cobalt, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Iron, total recoverable | daily maximum | ≤ 1849.4 ug/L | all year | 001 |
| Iron, total recoverable | monthly average | ≤ 683.6 ug/L | all year | 001 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Selenium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Thallium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Thallium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Beryllium, total recoverable [as Be] | daily maximum | report only (ug/L) | all year | 001 |
| Beryllium, total recoverable [as Be] | monthly average | report only (ug/L) | all year | 001 |
| Boron, total recoverable | daily maximum | ≤ 3566 ug/L | all year | 001 |
| Boron, total recoverable | monthly average | ≤ 1516 ug/L | all year | 001 |
| Silver total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Silver total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Cadmium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Lead, total recoverable | daily maximum | ≤ 5.2 ug/L | all year | 001 |
| Lead, total recoverable | monthly average | ≤ 2.2 ug/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ 13.1 ug/L | all year | 001 |
| Copper, total recoverable | monthly average | ≤ 4.2 ug/L | all year | 001 |
| Antimony, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Antimony, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Manganese, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Manganese, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Toluene | daily maximum | report only (ug/L) | all year | 001 |
| Toluene | monthly average | report only (ug/L) | all year | 001 |
| Benzene | daily maximum | report only (ug/L) | all year | 001 |
| Benzene | monthly average | report only (ug/L) | all year | 001 |
| Ethylbenzene | daily maximum | report only (ug/L) | all year | 001 |
| Ethylbenzene | monthly average | report only (ug/L) | all year | 001 |
| Chloride | daily maximum | ≤ 393.5 mg/L | all year | 001 |
| Chloride | monthly average | ≤ 182.4 mg/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 | ≤ 1030 #/100mL | Apr–Oct | 001 |
| E. coli | 30-day geometric mean | ≤ 206 #/100mL | Apr–Oct | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | daily maximum | report only (toxic) | all year | 001 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | daily maximum | report only (toxic) | all year | 001 |
| Mercury, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Mercury, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| p-Cresol | daily maximum | report only (ug/L) | all year | 001 |
| p-Cresol | monthly average | report only (ug/L) | all year | 001 |
| Benzoic acids, total | daily maximum | report only (ug/L) | all year | 001 |
| Benzoic acids, total | monthly average | report only (ug/L) | all year | 001 |
| .alpha.-Terpineol | daily maximum | report only (ug/L) | all year | 001 |
| .alpha.-Terpineol | monthly average | report only (ug/L) | all year | 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 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Cyanide, free [amenable to chlorination], daily maximum | 9.2 ug/L | new | 1.5 ug/L (11 values, 11 below detection) | — |
| Cyanide, free [amenable to chlorination], monthly average | 3 ug/L | new | 1.5 ug/L (11 values, 11 below detection) | — |
Cited limits by parameter: Missouri's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
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