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Explosives, Mcarthur, Ohio. NPDES permit OH0006173, in force until Jan 31, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Flow rate | monthly average | report only (gal/d) | all year | 007 |
| Flow rate | daily maximum | report only (gal/d) | all year | 007 |
| pH | daily minimum | ≥ 6.5 SU | all year | 007 |
| pH | daily maximum | ≤ 9 SU | all year | 007 |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | all year | 007 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ 10 mg/L | all year | 007 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 010 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 010 |
| Flow rate | monthly average | report only (gal/d) | all year | 010 |
| Flow rate | daily maximum | report only (gal/d) | all year | 010 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 6 mg/L | all year | 010 |
| Oxygen demand, chem. [low level] [COD] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 010 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 010 |
| pH | daily minimum | ≥ 6.5 SU | all year | 010 |
| pH | daily maximum | ≤ 9 SU | all year | 010 |
| Solids, total suspended | monthly average | ≤ 12 mg/L | all year | 010 |
| Solids, total suspended | daily maximum | ≤ 18 mg/L | all year | 010 |
| Solids, total suspended | monthly average | ≤ .23 kg/d | all year | 010 |
| Solids, total suspended | daily maximum | ≤ .34 kg/d | all year | 010 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ 10 mg/L | all year | 010 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ .19 kg/d | all year | 010 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 mg/L | May–Oct | 010 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 010 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.5 mg/L | May–Oct | 010 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4.5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 010 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .019 kg/d | May–Oct | 010 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .057 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 010 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .028 kg/d | May–Oct | 010 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .085 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 010 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 010 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 010 |
| E. coli, MTEC-MF | weekly geometric mean | ≤ 126 MPN/100mL | May–Oct | 010 |
| E. coli, MTEC-MF | daily maximum | ≤ 284 MPN/100mL | May–Oct | 010 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 010 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 010 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | all year | 010 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 15 mg/L | all year | 010 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ .19 kg/d | all year | 010 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ .28 kg/d | all year | 010 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 011 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 011 |
| Flow rate | monthly average | report only (gal/d) | all year | 011 |
| Flow rate | daily maximum | report only (gal/d) | all year | 011 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | Mar, Jun, Sep, Dec | 011 |
| Oxygen demand, chem. [low level] [COD] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 011 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 011 |
| pH | daily minimum | ≥ 6.5 SU | all year | 011 |
| pH | daily maximum | ≤ 9 SU | all year | 011 |
| Solids, total suspended | monthly average | ≤ 12 mg/L | all year | 011 |
| Solids, total suspended | daily maximum | ≤ 18 mg/L | all year | 011 |
| Solids, total suspended | monthly average | ≤ 1.64 kg/d | all year | 011 |
| Solids, total suspended | daily maximum | ≤ 2.46 kg/d | all year | 011 |
| Oil and grease [soxhlet extr.] tot. | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 011 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 011 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.3 mg/L | May–Oct | 011 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 7.6 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 011 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .178 kg/d | May–Oct | 011 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.04 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 011 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 011 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 011 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 011 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 011 |
| Chlorine, total residual | daily maximum | report only (mg/L) | all year | 011 |
| Toxicity [acute], Ceriodaphnia dubia | monthly average | report only (tox acute) | Jun, Dec | 011 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | report only (tox acute) | Jun, Dec | 011 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 011 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 011 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | all year | 011 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 15 mg/L | all year | 011 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 1.37 kg/d | all year | 011 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 2.05 kg/d | all year | 011 |
| %Effect Static Renewal 48Hr Acute Pimephales promelas | monthly average | report only (%) | Jun | 011 |
| %Effect Static Renewal 48Hr Acute Pimephales promelas | daily maximum | report only (%) | Jun | 011 |
| Oxygen demand, chem. [low level] [COD] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 601 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 601 |
| %Effect Static Renewal 48Hr Acute Ceriodaphnia dubia | monthly average | report only (%) | Jun, Dec | 801 |
| %Effect Static Renewal 48Hr Acute Ceriodaphnia dubia | daily maximum | report only (%) | Jun, Dec | 801 |
| %Effect Static Renewal 48Hr Acute Pimephales promelas | monthly average | report only (%) | Jun | 801 |
| %Effect Static Renewal 48Hr Acute Pimephales promelas | daily maximum | report only (%) | Jun | 801 |
| Parameter | New limit | From | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|---|
| Chlorine, total residual, daily maximum | 0.019 mg/L | Feb 1, 2029 | new | — | — |
| Chlorine, total residual, daily maximum | 0.019 mg/L | Jan 1, 2031 | new | — | — |
| Toxicity [acute], Ceriodaphnia dubia, daily maximum | 1 tox acute (Jun, Dec) | Jan 1, 2031 | new | — | — |
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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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/OH0006173 · MCP: https://passage-data.com/mcp