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Steam And Air-Conditioning Supply, major discharger, Hartford, Connecticut. NPDES permit CT0004014 expired Aug 31, 2011; its limits still apply. Last 12 months: no values over a limit, 9 of 44 reports late. 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 |
| Temperature, water deg. fahrenheit | instantaneous maximum | report only (deg F) | all year | 001 |
| Flow rate | monthly average | ≤ 39 MGD | all year | 001 |
| Flow rate | monthly average | ≤ 16 MGD | 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 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total suspended | instantaneous maximum | report only (mg/L) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total [as Cu] | instantaneous maximum | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | instantaneous maximum | report only (mg/L) | all year | 001 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 001 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 001 |
| Lead, total [as Pb] | instantaneous maximum | report only (mg/L) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 001 |
| Zinc, total [as Zn] | instantaneous maximum | report only (mg/L) | all year | 001 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 43 MGD | all year | 001 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 19 MGD | all year | 001 |
| Chlorine, total residual | instantaneous maximum | report only (ug/L) | Jul, Oct | 001 |
| Chlorine, total residual | instantaneous maximum | report only (mg/L) | Jul, Oct | 001 |
| Chlorine, total residual | instantaneous maximum | report only (mg/L) | Jan, Jul | 001 |
| Chlorine, total residual | instantaneous maximum | report only (mg/L) | Jan, Jul | 001 |
| Chlorine, total residual | instantaneous maximum | report only (mg/L) | all year | 001 |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | average | report only (pass=0;fail=1) | Jul, Oct | 001 |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | average | report only (pass=0;fail=1) | Jan, Feb, Mar, Apr, May, Jun, Aug, Sep, Nov, Dec | 001 |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | average | report only (pass=0;fail=1) | Jul, Oct | 001 |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | average | report only (pass=0;fail=1) | Jan, Feb, Mar, Apr, May, Jun, Aug, Sep, Nov, Dec | 001 |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | average | report only (pass=0;fail=1) | Jul, Oct | 001 |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | average | report only (pass=0;fail=1) | Jan, Feb, Mar, Apr, May, Jun, Aug, Sep, Nov, Dec | 001 |
| Pass/Fail Static Renewal 7Day Chronic Menidia | average | report only (pass=0;fail=1) | Jul, Oct | 001 |
| Pass/Fail Static Renewal 7Day Chronic Menidia | average | report only (pass=0;fail=1) | Jan, Feb, Mar, Apr, May, Jun, Aug, Sep, Nov, Dec | 001 |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | average | report only (pass=0;fail=1) | Jul, Oct | 001 |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | average | report only (pass=0;fail=1) | Jan, Feb, Mar, Apr, May, Jun, Aug, Sep, Nov, Dec | 001 |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | average | report only (pass=0;fail=1) | Jul, Oct | 001 |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | average | report only (pass=0;fail=1) | Jan, Feb, Mar, Apr, May, Jun, Aug, Sep, Nov, Dec | 001 |
| Flow rate | monthly average | ≤ 100400 gal/d | all year | 003 |
| Solids, total suspended | instantaneous maximum | report only (mg/L) | Jul | 003 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 196000 gal/d | all year | 003 |
Cited limits by parameter: Connecticut'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/CT0004014 · MCP: https://passage-data.com/mcp