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Mobile Home Site Operators, Rolla, Missouri. NPDES permit MO0086975 expired Sep 30, 2023; its limits still apply. Last 12 months: over a limit 17 times (last September 2026), 12 required values missing, 2 of 4 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | E. coli, 30-day geometric mean | > 2419.6 | ≤ 206 #/100mL | — |
| December 2025 | E. coli, 30-day geometric mean | > 2419.6 | ≤ 206 #/100mL | — |
| December 2025 | E. coli, daily maximum | > 2419.6 | ≤ 1030 #/100mL | — |
| December 2025 | E. coli, daily maximum | > 2419.6 | ≤ 1030 #/100mL | — |
| December 2025 | Nitrogen, ammonia total [as N], daily maximum | 20.8 | ≤ 10.9 mg/L | 91% |
| December 2025 | Nitrogen, ammonia total [as N], daily maximum | 20.8 | ≤ 10.9 mg/L | 91% |
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 20.8 | ≤ 3.7 mg/L | 462% |
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 20.8 | ≤ 3.7 mg/L | 462% |
| March 2026 | Nitrogen, ammonia total [as N], daily maximum | 26.7 | ≤ 10.9 mg/L | 145% |
| March 2026 | Nitrogen, ammonia total [as N], monthly average | 26.7 | ≤ 3.7 mg/L | 622% |
| June 2026 | E. coli, 30-day geometric mean | 98040 | ≤ 206 #/100mL | 47492% |
| June 2026 | E. coli, daily maximum | 98040 | ≤ 1030 #/100mL | 9418% |
| June 2026 | Nitrogen, ammonia total [as N], monthly average | 4.2 | ≤ 1.3 mg/L | 223% |
| September 2026 | E. coli, 30-day geometric mean | > 2419.6 | ≤ 206 #/100mL | — |
| September 2026 | E. coli, daily maximum | > 2419.6 | ≤ 1030 #/100mL | — |
| September 2026 | Nitrogen, ammonia total [as N], daily maximum | 13.2 | ≤ 5 mg/L | 164% |
| September 2026 | Nitrogen, ammonia total [as N], monthly average | 13.2 | ≤ 1.3 mg/L | 915% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| BOD, 5-day, 20 deg. C | weekly average | ≤ 65 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 45 mg/L | all year |
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | weekly average | ≤ 110 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 70 mg/L | all year |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.9 mg/L | Jan, Feb, Mar, Oct, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 5 mg/L | Apr–Sep |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.7 mg/L | Jan, Feb, Mar, Oct, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.3 mg/L | Apr–Sep |
| 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 |
| E. coli | daily maximum | ≤ 1030 #/100mL | Apr–Dec |
| E. coli | 30-day geometric mean | ≤ 206 #/100mL | Apr–Dec |
Cited limits by parameter: Missouri's rules and the federal ones.
Same industry: the 188 Real Estate 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/MO0086975 · MCP: https://passage-data.com/mcp