Passage Data · Check a report · Use it from your AI
Sewage treatment plant, Owensville, Missouri. NPDES permit MO0041068 expired Mar 31, 2025; its limits still apply. Last 12 months: over a limit 6 times (last July 2026), 2 of 32 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| January 2026 | Nitrogen, ammonia total [as N], daily maximum | 13 | ≤ 10.9 mg/L | 19% |
| January 2026 | Nitrogen, ammonia total [as N], monthly average | 7.9825 | ≤ 2.7 mg/L | 196% |
| February 2026 | Solids, suspended percent removal, monthly average minimum | 78 | ≥ 85 % | 47% |
| May 2026 | BOD, carbonaceous, percent removal, monthly average minimum | 40 | ≥ 85 % | 300% |
| May 2026 | Solids, suspended percent removal, monthly average minimum | 75 | ≥ 85 % | 67% |
| July 2026 | Solids, suspended percent removal, monthly average minimum | 51 | ≥ 85 % | 227% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | Apr–Oct | 001 |
| Oxygen, dissolved [DO] | monthly average minimum | ≥ 5 mg/L | Apr–Oct | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | weekly average | ≤ 20 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 15 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 | ≤ 10.9 mg/L | Jan, Feb, Mar, Oct, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 5.3 mg/L | Apr–Sep | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.7 mg/L | Jan, Feb, Mar, Oct, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.3 mg/L | Apr–Sep | 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 |
| E. coli | 7-day geometric mean | ≤ 1030 #/100mL | Apr–Oct | 001 |
| E. coli | 30-day geometric mean | ≤ 206 #/100mL | Apr–Oct | 001 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | report only (toxic) | all year | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | daily maximum | report only (toxic) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 8.3 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 5.5 mg/L | all year | 001 |
| BOD, carbonaceous, percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, total suspended | daily maximum | 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 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | INF |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | INF |
Cited limits by parameter: Missouri's rules and the federal ones.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MO0041068 · MCP: https://passage-data.com/mcp