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Primary Aluminum, major discharger, Hannibal, Ohio. NPDES permit OH0011550, in force until May 31, 2028. Last 12 months: no values over a limit, 88 required values missing, 12 of 13 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 017 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 017 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year | 017 |
| pH | daily minimum | ≥ 6 SU | all year | 017 |
| pH | daily maximum | ≤ 9 SU | all year | 017 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 017 |
| Solids, total suspended | weekly maximum | ≤ 45 mg/L | all year | 017 |
| Solids, total suspended | monthly average | ≤ 22.8 kg/d | all year | 017 |
| Solids, total suspended | weekly maximum | ≤ 34.1 kg/d | all year | 017 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 017 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 017 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 017 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 017 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 017 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 017 |
| Turbidity [severity] | monthly average | report only (severity) | all year | 017 |
| Turbidity [severity] | daily maximum | report only (severity) | all year | 017 |
| Coliform, fecal MF, MFC broth, 44.5 C | monthly geometric mean | ≤ 1000 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 017 |
| Coliform, fecal MF, MFC broth, 44.5 C | weekly geometric mean | ≤ 2000 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 017 |
| E. coli, MTEC-MF | monthly geometric mean | ≤ 130 MPN/100mL | May–Oct | 017 |
| E. coli, MTEC-MF | weekly geometric mean | ≤ 240 MPN/100mL | May–Oct | 017 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 017 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 017 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | 017 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 40 mg/L | all year | 017 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 19 kg/d | all year | 017 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 30.3 kg/d | all year | 017 |
| Biosolids weight indluding admixtures | monthly average | report only (dry ton) | Dec | 586 |
| Biosolids weight indluding admixtures | daily maximum | report only (dry ton) | Dec | 586 |
| 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 56 Primary Metal Industries 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/OH0011550 · MCP: https://passage-data.com/mcp