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Industrial Organic Chemicals, Leipsic, Ohio. NPDES permit OH0138622, in force until Oct 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | monthly average | ≤ 65 deg F | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Temperature, water deg. fahrenheit | monthly average | ≤ 82 deg F | May–Oct | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 70 deg F | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 85 deg F | May–Oct | 001 |
| Oxygen demand, chem. [low level] [COD] | monthly average | report only (mg/L) | all year | 001 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | report only (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 | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 34.7 kg/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 51.9 kg/d | all year | 001 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ 10 mg/L | all year | 001 |
| Iron, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Barium, total recoverable | monthly average | ≤ 220 ug/L | all year | 001 |
| Barium, total recoverable | daily maximum | ≤ 2000 ug/L | all year | 001 |
| Barium, total recoverable | monthly average | ≤ .254 kg/d | all year | 001 |
| Barium, total recoverable | daily maximum | ≤ 2.31 kg/d | all year | 001 |
| Strontium, total recoverable, ug/L | monthly average | report only (ug/L) | all year | 001 |
| Strontium, total recoverable, ug/L | daily maximum | report only (ug/L) | all year | 001 |
| Zinc, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Copper, total recoverable | monthly average | ≤ 29 ug/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ 49 ug/L | all year | 001 |
| Copper, total recoverable | monthly average | ≤ .0335 kg/d | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ .0566 kg/d | all year | 001 |
| Oxidants, total residual | daily maximum | ≤ .01 mg/L | all year | 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 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | ≤ 1 tox acute | Sep | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | daily maximum | ≤ 1 tox acute | Sep | 001 |
| Solids, total dissolved- 180 deg. C | monthly average | ≤ 1500 mg/L | all year | 001 |
| Solids, total dissolved- 180 deg. C | monthly average | ≤ 1732 kg/d | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| Oxygen demand, chem. [low level] [COD] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| pH | daily minimum | ≥ 6.5 SU | Mar, Jun, Aug, Dec | 002 |
| pH | daily maximum | ≤ 9 SU | Mar, Jun, Aug, Dec | 002 |
| Solids, total suspended | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| Rainfall | monthly average | report only (in) | all year | 002 |
| Rainfall | daily maximum | report only (in) | 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 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 002 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 002 |
| Duration of discharge | monthly average | report only (hr) | all year | 002 |
| Duration of discharge | daily maximum | report only (hr) | all year | 002 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Oxygen demand, chem. [low level] [COD] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| pH | daily minimum | ≥ 6.5 SU | Mar, Jun, Aug, Dec | 003 |
| pH | daily maximum | ≤ 9 SU | Mar, Jun, Aug, Dec | 003 |
| Solids, total suspended | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Rainfall | monthly average | report only (in) | all year | 003 |
| Rainfall | daily maximum | report only (in) | 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) | Mar, Jun, Aug, Dec | 003 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 003 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 003 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 003 |
| Duration of discharge | monthly average | report only (hr) | all year | 003 |
| Duration of discharge | daily maximum | report only (hr) | all year | 003 |
| Toxicity [acute], Ceriodaphnia dubia | monthly average | report only (tox acute) | Sep | 801 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | report only (tox acute) | Sep | 801 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | monthly average | report only (tox acute) | Sep | 801 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | daily maximum | report only (tox acute) | Sep | 801 |
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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