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Sewage treatment plant, Steele, Missouri. NPDES permit MO0057444, in force until Mar 31, 2027. Last 12 months: over a limit 13 times (last August 2026), 16 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | pH, minimum | 3.6 | ≥ 6.5 SU | — |
| December 2025 | Solids, suspended percent removal, monthly average minimum | 0 | ≥ 65 % | 186% |
| January 2026 | Solids, suspended percent removal, monthly average minimum | 47 | ≥ 65 % | 51% |
| January 2026 | Solids, total suspended, monthly average | 57 | ≤ 50 mg/L | 14% |
| February 2026 | Solids, suspended percent removal, monthly average minimum | 48 | ≥ 65 % | 49% |
| April 2026 | BOD, 5-day, percent removal, monthly average minimum | 1 | ≥ 65 % | 183% |
| June 2026 | Solids, total suspended, monthly average | 65 | ≤ 50 mg/L | 30% |
| July 2026 | Solids, suspended percent removal, monthly average minimum | 63 | ≥ 65 % | 6% |
| July 2026 | Solids, total suspended, monthly average | 57 | ≤ 50 mg/L | 14% |
| July 2026 | pH, minimum | 5.77 | ≥ 6.5 SU | — |
| August 2026 | BOD, 5-day, percent removal, monthly average minimum | 12 | ≥ 65 % | 151% |
| August 2026 | Solids, suspended percent removal, monthly average minimum | 0 | ≥ 65 % | 186% |
| August 2026 | Solids, total suspended, monthly average | 69 | ≤ 50 mg/L | 38% |
| 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 | ≤ 75 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 50 mg/L | all year | 001 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ 15 mg/L | all year | 001 |
| Oil and grease [soxhlet extr.] tot. | monthly average | ≤ 10 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 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 |
| 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 |
| 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 |
| 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 |
|---|---|---|---|---|
| Nitrogen, ammonia total [as N], monthly average | 3.9 mg/L (Jan, Feb, Mar, Nov) | new | 9.585 mg/L (4 values) | 2.46× |
| E. coli, 7-day geometric mean | 1030 #/100mL (Apr–Oct) | new | — | — |
| E. coli, monthly average | 206 #/100mL (Apr–Oct) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 17 mg/L (Jan, Feb, Mar, Nov) | new | 9.585 mg/L (4 values) | 0.564× |
| Nitrogen, ammonia total [as N], daily maximum | 23 mg/L (May) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 14.4 mg/L (Jul) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 12.1 mg/L (Aug) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 10.1 mg/L (Oct) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 14.4 mg/L (Apr) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 14.4 mg/L (Dec) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 14.4 mg/L (Jun, Sep) | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 2.9 mg/L (May) | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 1.4 mg/L (Jul) | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 1.5 mg/L (Aug) | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 2 mg/L (Oct) | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 2.8 mg/L (Apr) | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 3.5 mg/L (Dec) | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 1.7 mg/L (Jun, Sep) | new | — | — |
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/MO0057444 · MCP: https://passage-data.com/mcp