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Mobile Home Site Operators, Dayton, Ohio. NPDES permit OH0040649, in force until Mar 31, 2031. Last 12 months: over a limit 13 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | Nitrogen, ammonia total [as N], monthly average | 4.42 | ≤ 3 mg/L | 47% |
| November 2025 | Nitrogen, ammonia total [as N], weekly maximum | 7.19 | ≤ 5 mg/L | 44% |
| January 2026 | pH, daily maximum | 9.1 | ≤ 9 SU | — |
| February 2026 | Nitrogen, ammonia total [as N], monthly average | .822 | ≤ .45 kg/d | 83% |
| February 2026 | Nitrogen, ammonia total [as N], monthly average | 4.22 | ≤ 3 mg/L | 41% |
| February 2026 | Nitrogen, ammonia total [as N], weekly maximum | 1.01 | ≤ .76 kg/d | 33% |
| February 2026 | Nitrogen, ammonia total [as N], weekly maximum | 5.32 | ≤ 5 mg/L | 6% |
| May 2026 | Nitrogen, ammonia total [as N], monthly average | .452 | ≤ .2 kg/d | 126% |
| May 2026 | Nitrogen, ammonia total [as N], monthly average | 3.85 | ≤ 1.3 mg/L | 196% |
| May 2026 | Nitrogen, ammonia total [as N], weekly maximum | .452 | ≤ .3 kg/d | 51% |
| May 2026 | Nitrogen, ammonia total [as N], weekly maximum | 3.85 | ≤ 2 mg/L | 93% |
| June 2026 | E. coli, MTEC-MF, monthly geometric mean | T | ≤ 126 MPN/100mL | — |
| June 2026 | E. coli, MTEC-MF, weekly geometric mean | T | ≤ 284 MPN/100mL | — |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 6 mg/L | all year | 001 |
| pH | daily minimum | ≥ 6.5 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 12 mg/L | all year | 001 |
| Solids, total suspended | weekly maximum | ≤ 18 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 1.82 kg/d | all year | 001 |
| Solids, total suspended | weekly maximum | ≤ 2.73 kg/d | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.3 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 2 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .2 kg/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .45 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ .3 kg/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ .76 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 001 |
| Turbidity [severity] | monthly average | report only (severity) | all year | 001 |
| Turbidity [severity] | daily maximum | report only (severity) | all year | 001 |
| E. coli, MTEC-MF | monthly geometric mean | ≤ 126 MPN/100mL | May–Oct | 001 |
| E. coli, MTEC-MF | weekly geometric mean | ≤ 284 MPN/100mL | May–Oct | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 15 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 1.52 kg/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 2.28 kg/d | all year | 001 |
| Sludge waste from secondary clarifiers | monthly average | report only (gal) | Dec | 588 |
| Sludge waste from secondary clarifiers | daily maximum | report only (gal) | Dec | 588 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 193 Real Estate permits in Ohio.
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