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Steam And Air-Conditioning Supply, Baton Rouge, Louisiana. NPDES permit LA0127772, in force until May 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | instantaneous maximum | report only (deg F) | all year | 001 |
| Temperature, water deg. fahrenheit | instantaneous maximum | report only (deg F) | all year | 001 |
| Sulfate [as S] | monthly average | report only (mg/L) | all year | 001 |
| Sulfate [as S] | monthly average | report only (mg/L) | all year | 001 |
| Sulfate [as S] | daily maximum | report only (mg/L) | all year | 001 |
| Sulfate [as S] | daily maximum | report only (mg/L) | all year | 001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 001 |
| Copper, total [as Cu] | monthly average | report only (lb/d) | all year | 001 |
| Copper, total [as Cu] | monthly average | report only (lb/d) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (lb/d) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (lb/d) | 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 | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .2 mg/L | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .2 mg/L | all year | 001 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | 001 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | 001 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 001 |
| Temperature, water deg. fahrenheit | instantaneous maximum | report only (deg F) | all year | 002 |
| Temperature, water deg. fahrenheit | instantaneous maximum | report only (deg F) | all year | 002 |
| Sulfate [as S] | monthly average | report only (mg/L) | all year | 002 |
| Sulfate [as S] | monthly average | report only (mg/L) | all year | 002 |
| Sulfate [as S] | daily maximum | report only (mg/L) | all year | 002 |
| Sulfate [as S] | daily maximum | report only (mg/L) | all year | 002 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 002 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 002 |
| Copper, total [as Cu] | monthly average | report only (lb/d) | all year | 002 |
| Copper, total [as Cu] | monthly average | report only (lb/d) | all year | 002 |
| Copper, total [as Cu] | daily maximum | report only (lb/d) | all year | 002 |
| Copper, total [as Cu] | daily maximum | report only (lb/d) | 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 | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Chlorine, total residual | daily maximum | ≤ .2 mg/L | all year | 002 |
| Chlorine, total residual | daily maximum | ≤ .2 mg/L | all year | 002 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | 002 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | 002 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 002 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 002 |
| Temperature, water deg. fahrenheit | instantaneous maximum | report only (deg F) | all year | 003 |
| Temperature, water deg. fahrenheit | instantaneous maximum | report only (deg F) | all year | 003 |
| Sulfate [as S] | monthly average | report only (mg/L) | all year | 003 |
| Sulfate [as S] | monthly average | report only (mg/L) | all year | 003 |
| Sulfate [as S] | daily maximum | report only (mg/L) | all year | 003 |
| Sulfate [as S] | daily maximum | report only (mg/L) | all year | 003 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 003 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 003 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 003 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 003 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 003 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 003 |
| Copper, total [as Cu] | monthly average | ≤ .43 lb/d | all year | 003 |
| Copper, total [as Cu] | monthly average | ≤ .43 lb/d | all year | 003 |
| Copper, total [as Cu] | daily maximum | ≤ 1.03 lb/d | all year | 003 |
| Copper, total [as Cu] | daily maximum | ≤ 1.03 lb/d | 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 | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | 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 | ≤ .2 mg/L | all year | 003 |
| Chlorine, total residual | daily maximum | ≤ .2 mg/L | all year | 003 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | 003 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | 003 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 003 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 003 |
Cited limits by parameter: Louisiana's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/LA0127772 · MCP: https://passage-data.com/mcp