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Nonclassifiable Establishments, Imperial, Missouri. NPDES permit MO0140961, in force until Oct 31, 2030. Last 12 months: over a limit 28 times (last September 2026), 18 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | BOD, 5-day, 20 deg. C, monthly average | 695 | ≤ 10 mg/L | 6850% |
| December 2025 | BOD, 5-day, 20 deg. C, weekly average | 695 | ≤ 15 mg/L | 4533% |
| December 2025 | E. coli, daily maximum | 72700 | ≤ 126 #/100mL | 57598% |
| December 2025 | Nitrogen, ammonia total [as N], daily maximum | 29 | ≤ 7.5 mg/L | 287% |
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 29 | ≤ 2.9 mg/L | 900% |
| December 2025 | Oil and grease [soxhlet extr.] tot., daily maximum | 48 | ≤ 15 mg/L | 220% |
| December 2025 | Oil and grease [soxhlet extr.] tot., monthly average | 48 | ≤ 10 mg/L | 380% |
| December 2025 | Oxygen, dissolved [DO], daily minimum | < .5 | ≥ 5 mg/L | — |
| December 2025 | Solids, total suspended, monthly average | 230 | ≤ 15 mg/L | 1433% |
| December 2025 | Solids, total suspended, weekly average | 230 | ≤ 20 mg/L | 1050% |
| June 2026 | BOD, 5-day, 20 deg. C, monthly average | 600 | ≤ 10 mg/L | 5900% |
| June 2026 | BOD, 5-day, 20 deg. C, weekly average | 600 | ≤ 15 mg/L | 3900% |
| June 2026 | E. coli, daily maximum | 520 | ≤ 126 #/100mL | 313% |
| June 2026 | Nitrogen, ammonia total [as N], daily maximum | 29 | ≤ 3.6 mg/L | 706% |
| June 2026 | Nitrogen, ammonia total [as N], monthly average | 29 | ≤ 1.4 mg/L | 1971% |
| June 2026 | Oil and grease [soxhlet extr.] tot., daily maximum | 37 | ≤ 15 mg/L | 147% |
| June 2026 | Oil and grease [soxhlet extr.] tot., monthly average | 37 | ≤ 10 mg/L | 270% |
| June 2026 | Solids, total suspended, monthly average | 140 | ≤ 15 mg/L | 833% |
| June 2026 | Solids, total suspended, weekly average | 140 | ≤ 20 mg/L | 600% |
| September 2026 | BOD, 5-day, 20 deg. C, monthly average | 270 | ≤ 10 mg/L | 2600% |
| September 2026 | BOD, 5-day, 20 deg. C, weekly average | 270 | ≤ 15 mg/L | 1700% |
| September 2026 | E. coli, daily maximum | 48800 | ≤ 126 #/100mL | 38630% |
| September 2026 | Nitrogen, ammonia total [as N], daily maximum | 25 | ≤ 3.6 mg/L | 594% |
| September 2026 | Nitrogen, ammonia total [as N], monthly average | 25 | ≤ 1.4 mg/L | 1686% |
| September 2026 | Oil and grease [soxhlet extr.] tot., daily maximum | 16 | ≤ 15 mg/L | 7% |
| September 2026 | Oil and grease [soxhlet extr.] tot., monthly average | 16 | ≤ 10 mg/L | 60% |
| September 2026 | Solids, total suspended, monthly average | 81 | ≤ 15 mg/L | 440% |
| September 2026 | Solids, total suspended, weekly average | 81 | ≤ 20 mg/L | 305% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | all year |
| Oxygen, dissolved [DO] | monthly average minimum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 15 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10 mg/L | all year |
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | weekly average | ≤ 20 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 15 mg/L | all year |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ 15 mg/L | all year |
| Oil and grease [soxhlet extr.] tot. | monthly average | ≤ 10 mg/L | all year |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3.6 mg/L | Apr–Sep |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 7.5 mg/L | Jan, Feb, Mar, Oct, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.4 mg/L | Apr–Sep |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.9 mg/L | Jan, Feb, Mar, Oct, Nov, Dec |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Chlorine, total residual | daily maximum | ≤ 17 ug/L | all year |
| Chlorine, total residual | monthly average | ≤ 5 ug/L | all year |
| E. coli | daily maximum | ≤ 126 #/100mL | all year |
| E. coli | monthly average | report only (#/100mL) | all year |
Cited limits by parameter: Missouri's rules and the federal ones.
Same industry: the 9 Nonclassifiable Establishments permits in Missouri.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MO0140961 · MCP: https://passage-data.com/mcp