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Water Supply, Columbiana, Ohio. NPDES permit OH0030881, in force until Dec 31, 2026. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | daily minimum | ≥ 6.5 SU | all year | 003 |
| pH | daily maximum | ≤ 11 SU | all year | 003 |
| Solids, total suspended | monthly average | ≤ 15 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 20 mg/L | all year | 003 |
| Solids, total suspended | monthly average | ≤ 3.7 kg/d | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 4.9 kg/d | all year | 003 |
| Dichlorobromomethane | monthly average | report only (ug/L) | Sep | 003 |
| Dichlorobromomethane | daily maximum | report only (ug/L) | Sep | 003 |
| Bromoform | monthly average | report only (ug/L) | Sep | 003 |
| Bromoform | daily maximum | report only (ug/L) | Sep | 003 |
| Dibromochloromethane | monthly average | report only (ug/L) | Sep | 003 |
| Dibromochloromethane | daily maximum | report only (ug/L) | Sep | 003 |
| Chloroform | monthly average | report only (ug/L) | Sep | 003 |
| Chloroform | daily maximum | report only (ug/L) | Sep | 003 |
| Methyl bromide [Bromomethane] | monthly average | report only (ug/L) | Sep | 003 |
| Methyl bromide [Bromomethane] | daily maximum | report only (ug/L) | Sep | 003 |
| Methyl chloride [Chloromethane] | monthly average | report only (ug/L) | Sep | 003 |
| Methyl chloride [Chloromethane] | daily maximum | report only (ug/L) | Sep | 003 |
| Methylene chloride | monthly average | report only (ug/L) | Sep | 003 |
| Methylene chloride | daily maximum | report only (ug/L) | Sep | 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 |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | all year | 003 |
| Microcystin | monthly average | report only (ug/L) | all year | 003 |
| Microcystin | daily maximum | report only (ug/L) | 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 |
| pH | daily minimum | report only (SU) | all year | 901 |
| pH | daily maximum | report only (SU) | all year | 901 |
| Turbidity [severity] | monthly average | report only (severity) | all year | 901 |
| Turbidity [severity] | daily maximum | report only (severity) | all year | 901 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 147 Water Supply permits in Ohio.
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Your permit document is the final word. As JSON: /api/v1/permits/OH0030881 · MCP: https://passage-data.com/mcp