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Sewage treatment plant, Bertrand, Missouri. NPDES permit MO0100111, in force until May 31, 2029. Last 12 months: over a limit 27 times (last August 2026), 8 required values missing, 5 of 25 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Solids, suspended percent removal, monthly average minimum | 20.87 | ≥ 65 % | 126% |
| October 2025 | pH, minimum | 4.61 | ≥ 6.5 SU | — |
| November 2025 | Nitrogen, ammonia total [as N], monthly average | 4.89 | ≤ 3.9 mg/L | 25% |
| November 2025 | Solids, suspended percent removal, monthly average minimum | 0 | ≥ 65 % | 186% |
| November 2025 | Solids, total suspended, monthly average | 407 | ≤ 80 mg/L | 409% |
| November 2025 | Solids, total suspended, weekly average | 407 | ≤ 120 mg/L | 239% |
| November 2025 | pH, minimum | 5.17 | ≥ 6.5 SU | — |
| December 2025 | BOD, 5-day, percent removal, monthly average minimum | 50.38 | ≥ 65 % | 42% |
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 8.01 | ≤ 3.5 mg/L | 129% |
| December 2025 | Solids, suspended percent removal, monthly average minimum | 0 | ≥ 65 % | 186% |
| December 2025 | Solids, total suspended, monthly average | 340 | ≤ 80 mg/L | 325% |
| December 2025 | Solids, total suspended, weekly average | 340 | ≤ 120 mg/L | 183% |
| December 2025 | pH, minimum | 3.26 | ≥ 6.5 SU | — |
| January 2026 | Nitrogen, ammonia total [as N], monthly average | 13.5 | ≤ 3.9 mg/L | 246% |
| January 2026 | Solids, suspended percent removal, monthly average minimum | .34 | ≥ 65 % | 185% |
| January 2026 | pH, minimum | 5.94 | ≥ 6.5 SU | — |
| February 2026 | Nitrogen, ammonia total [as N], monthly average | 14.9 | ≤ 3.9 mg/L | 282% |
| March 2026 | Nitrogen, ammonia total [as N], monthly average | 7.21 | ≤ 3.9 mg/L | 85% |
| April 2026 | BOD, 5-day, percent removal, monthly average minimum | 48.8 | ≥ 65 % | 46% |
| April 2026 | Nitrogen, ammonia total [as N], monthly average | 11.6 | ≤ 2.8 mg/L | 314% |
| May 2026 | BOD, 5-day, percent removal, monthly average minimum | 42.04 | ≥ 65 % | 66% |
| May 2026 | Nitrogen, ammonia total [as N], monthly average | 4.34 | ≤ 2.9 mg/L | 50% |
| May 2026 | Solids, suspended percent removal, monthly average minimum | 47.5 | ≥ 65 % | 50% |
| June 2026 | E. coli, 30-day geometric mean | 1990 | ≤ 206 #/100mL | 866% |
| July 2026 | Solids, suspended percent removal, monthly average minimum | 23 | ≥ 65 % | 120% |
| August 2026 | BOD, 5-day, percent removal, monthly average minimum | 63 | ≥ 65 % | 6% |
| August 2026 | Solids, suspended percent removal, monthly average minimum | 4.65 | ≥ 65 % | 172% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | weekly average | ≤ 65 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 45 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 | ≤ 120 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 80 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, ammonia total [as N] | daily maximum | ≤ 14.4 mg/L | Jun, Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 17 mg/L | Jan, Feb, Mar, Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 14.4 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 23 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12.1 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.1 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 14.4 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 14.4 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.7 mg/L | Jun, Sep | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.9 mg/L | Jan, Feb, Mar, Nov | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.4 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.9 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.2 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.5 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.8 mg/L | Apr | 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 |
| Chlorine, total residual | daily maximum | ≤ 18 ug/L | Apr–Oct | 001 |
| Chlorine, total residual | monthly average | ≤ 9 ug/L | Apr–Oct | 001 |
| E. coli | 7-day geometric mean | ≤ 1030 #/100mL | Apr–Oct | 001 |
| E. coli | 30-day geometric mean | ≤ 206 #/100mL | Apr–Oct | 001 |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 65 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 65 % | all year | 001 |
| BOD, 5-day, 20 deg. C | 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
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