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Special Trade Contractors, major discharger, Manchester, Ohio. NPDES permit OH0004316, 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 |
|---|---|---|---|---|
| pH | daily minimum | report only (SU) | Mar, Jun, Sep, Dec | 003 |
| pH | daily maximum | report only (SU) | Mar, Jun, Sep, Dec | 003 |
| Solids, total suspended | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| pH | daily minimum | report only (SU) | Mar, Jun, Sep, Dec | 010 |
| pH | daily maximum | report only (SU) | Mar, Jun, Sep, Dec | 010 |
| Solids, total suspended | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 010 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 010 |
| pH | daily minimum | report only (SU) | Mar, Jun, Sep, Dec | 012 |
| pH | daily maximum | report only (SU) | Mar, Jun, Sep, Dec | 012 |
| Solids, total suspended | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 012 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 012 |
| pH | daily minimum | ≥ 6 SU | all year | 013 |
| pH | daily maximum | ≤ 9 SU | all year | 013 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 013 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 013 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 013 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 013 |
| Chloride [as Cl] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 013 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 013 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 013 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 013 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 013 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 013 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 013 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 013 |
| pH | daily minimum | ≥ 6 SU | all year | 019 |
| pH | daily maximum | ≤ 9 SU | all year | 019 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 019 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 019 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 019 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 019 |
| Chloride [as Cl] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 019 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 019 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 019 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 019 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 019 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 019 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 019 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 019 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 14 Construction — Special Trade Contractors permits in Ohio.
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