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Nitrogenous Fertilizers, North Bend, Ohio. NPDES permit OH0009571, in force until Jul 31, 2027. Last 12 months: over a limit 10 times (last February 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 7.2 | ≤ 3 mg/L | 140% |
| December 2025 | Nitrogen, ammonia total [as N], weekly maximum | 7.2 | ≤ 4.5 mg/L | 60% |
| January 2026 | Nitrogen, ammonia total [as N], monthly average | .019 | ≤ .0114 kg/d | 67% |
| January 2026 | Nitrogen, ammonia total [as N], monthly average | 10 | ≤ 3 mg/L | 233% |
| January 2026 | Nitrogen, ammonia total [as N], weekly maximum | .019 | ≤ .0171 kg/d | 11% |
| January 2026 | Nitrogen, ammonia total [as N], weekly maximum | 10 | ≤ 4.5 mg/L | 122% |
| February 2026 | Nitrogen, ammonia total [as N], monthly average | .04 | ≤ .0114 kg/d | 251% |
| February 2026 | Nitrogen, ammonia total [as N], monthly average | 33 | ≤ 3 mg/L | 1000% |
| February 2026 | Nitrogen, ammonia total [as N], weekly maximum | .04 | ≤ .0171 kg/d | 134% |
| February 2026 | Nitrogen, ammonia total [as N], weekly maximum | 33 | ≤ 4.5 mg/L | 633% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 002 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 002 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year | 002 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 002 |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year | 002 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 20.6 mg/L | May–Oct | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 30.3 kg/d | May–Oct | 002 |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| pH Range Excursion, Maximum Duration | daily maximum | ≤ 60 min | all year | 002 |
| pH, maximum | daily maximum | report only (SU) | all year | 002 |
| pH, minimum | daily minimum | report only (SU) | all year | 002 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 002 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 002 |
| pH range excursions, > 60 minutes | daily maximum | ≤ 0 occur/d | all year | 002 |
| pH range excursions, monthly total accum | daily maximum | ≤ 446 min | all year | 002 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 003 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 003 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year | 003 |
| pH | daily minimum | report only (SU) | all year | 003 |
| pH | daily maximum | report only (SU) | all year | 003 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 003 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | May–Oct | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (kg/d) | May–Oct | 003 |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 003 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 003 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 003 |
| Sludge waste from secondary clarifiers | monthly average | report only (gal) | Dec | 588 |
| Sludge waste from secondary clarifiers | daily maximum | report only (gal) | Dec | 588 |
| Flow rate | monthly average | report only (gal/d) | all year | 601 |
| Flow rate | daily maximum | report only (gal/d) | all year | 601 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 6 mg/L | all year | 601 |
| pH | daily minimum | report only (SU) | all year | 601 |
| pH | daily maximum | report only (SU) | all year | 601 |
| Solids, total suspended | monthly average | ≤ 12 mg/L | all year | 601 |
| Solids, total suspended | weekly maximum | ≤ 18 mg/L | all year | 601 |
| Solids, total suspended | monthly average | ≤ .0455 kg/d | all year | 601 |
| Solids, total suspended | weekly maximum | ≤ .0682 kg/d | all year | 601 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 mg/L | May–Oct | 601 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 601 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 1.5 mg/L | May–Oct | 601 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 4.5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 601 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .00379 kg/d | May–Oct | 601 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .0114 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 601 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ .00568 kg/d | May–Oct | 601 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ .0171 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 601 |
| Turbidity [severity] | monthly average | report only (severity) | all year | 601 |
| Turbidity [severity] | daily maximum | report only (severity) | all year | 601 |
| Coliform, fecal MF, MFC broth, 44.5 C | monthly geometric mean | ≤ 1000 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 601 |
| Coliform, fecal MF, MFC broth, 44.5 C | weekly geometric mean | ≤ 2000 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 601 |
| E. coli, MTEC-MF | monthly geometric mean | ≤ 126 MPN/100mL | May–Oct | 601 |
| E. coli, MTEC-MF | weekly geometric mean | ≤ 235 MPN/100mL | May–Oct | 601 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | all year | 601 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 15 mg/L | all year | 601 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ .0379 kg/d | all year | 601 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ .0568 kg/d | all year | 601 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Sep | 602 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Sep | 602 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Sep | 602 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Sep | 602 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Sep | 602 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Sep | 602 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Sep | 602 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Sep | 602 |
| Lead, total recoverable | monthly average | report only (ug/L) | Sep | 602 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Sep | 602 |
| Rainfall | monthly average | report only (in) | Sep | 602 |
| Rainfall | daily maximum | report only (in) | Sep | 602 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Sep | 603 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Sep | 603 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Sep | 603 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Sep | 603 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Sep | 603 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Sep | 603 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Sep | 603 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Sep | 603 |
| Lead, total recoverable | monthly average | report only (ug/L) | Sep | 603 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Sep | 603 |
| Rainfall | monthly average | report only (in) | Sep | 603 |
| Rainfall | daily maximum | report only (in) | Sep | 603 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Sep | 604 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Sep | 604 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Sep | 604 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Sep | 604 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Sep | 604 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Sep | 604 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Sep | 604 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Sep | 604 |
| Lead, total recoverable | monthly average | report only (ug/L) | Sep | 604 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Sep | 604 |
| Rainfall | monthly average | report only (in) | Sep | 604 |
| Rainfall | daily maximum | report only (in) | Sep | 604 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 605 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 605 |
| pH | daily minimum | report only (SU) | all year | 605 |
| pH | daily maximum | report only (SU) | all year | 605 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 605 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 605 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | 605 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 605 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 605 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 605 |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 605 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year | 605 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 605 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 605 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 605 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 605 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 68 Chemicals and Allied Products permits in Ohio.
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