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Electric Services, major discharger, New Haven, Connecticut. NPDES permit CT0003760 expired Jan 3, 2011; its limits still apply. 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 |
| Temperature, water deg. fahrenheit | instantaneous maximum | report only (deg F) | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec | 001 |
| Temperature, water deg. fahrenheit | instantaneous maximum | report only (deg F) | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec | 001 |
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 95 deg F | Sep | 001 |
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 95 deg F | Sep | 001 |
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 97 deg F | Jul | 001 |
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 97 deg F | Jul | 001 |
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 100 deg F | Aug | 001 |
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 100 deg F | Aug | 001 |
| Flow rate | monthly average | report only (MGD) | all year | 001 |
| Flow rate | monthly average | report only (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 |
| Solids, total suspended | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | Jan, Apr, Jul, Oct | 001 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | Jan, Apr, Jul, Oct | 001 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | Jan, Apr, Jul, Oct | 001 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | Jan, Apr, Jul, Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Feb, Aug | 001 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Feb, Aug | 001 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Feb, Aug | 001 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Feb, Aug | 001 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Feb, Aug | 001 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Feb, Aug | 001 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Feb, Aug | 001 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Feb, Aug | 001 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Oxidants, total residual | instantaneous maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Oxidants, total residual | instantaneous maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Oxidants, total residual | instantaneous maximum | ≤ .2 mg/L | all year | 001 |
| Oxidants, total residual | instantaneous maximum | ≤ .2 mg/L | all year | 001 |
| Flow, maximum during 24 hr period | daily maximum | report only (gal/d) | Jan, Apr, Jul, Oct | 001 |
| Flow, maximum during 24 hr period | daily maximum | report only (gal/d) | Jan, Apr, Jul, Oct | 001 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 410 MGD | all year | 001 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 410 MGD | all year | 001 |
| Number of pumps in operation | daily maximum | report only (#) | Jan, Apr, Jul, Oct | 001 |
| Number of pumps in operation | daily maximum | report only (#) | Jan, Apr, Jul, Oct | 001 |
| pH, maximum | instantaneous maximum | report only (SU) | all year | 001 |
| pH, maximum | instantaneous maximum | report only (SU) | all year | 001 |
| pH, minimum | instantaneous minimum | report only (SU) | all year | 001 |
| pH, minimum | instantaneous minimum | report only (SU) | all year | 001 |
| Flow | monthly average | report only (MGD) | all year | 001 |
| Flow | monthly average | report only (MGD) | all year | 001 |
| Flow | daily maximum | ≤ 410 MGD | all year | 001 |
| Flow | daily maximum | ≤ 410 MGD | all year | 001 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Feb, Aug | 001 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Feb, Aug | 001 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Feb, Aug | 001 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Feb, Aug | 001 |
| Oxidants, total residual | instantaneous maximum | report only (mg/L) | Mar | 003 |
| Oxidants, total residual | instantaneous maximum | report only (mg/L) | Mar | 003 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 816000 gal/d | Mar | 003 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 816000 gal/d | Mar | 003 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Mar | 003 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Mar | 003 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec | 003 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec | 003 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Mar | 003 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Mar | 003 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec | 003 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec | 003 |
| Flow rate | monthly average | ≤ 275000 gal/d | all year | 004 |
| Flow rate | monthly average | ≤ 275000 gal/d | all year | 004 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 004 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 004 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 004 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 004 |
| Salinity | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 004 |
| Salinity | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 004 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 004 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 004 |
| Oil & Grease | monthly average | report only (mg/L) | all year | 004 |
| Oil & Grease | monthly average | report only (mg/L) | all year | 004 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 004 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 004 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 004 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 004 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 004 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 004 |
| Phosphate, total [as PO4] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 004 |
| Phosphate, total [as PO4] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 004 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 004 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 004 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 004 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 004 |
| Copper, dissolved [as Cu] | monthly average | ≤ .0306 mg/L | all year | 004 |
| Copper, dissolved [as Cu] | monthly average | ≤ .0306 mg/L | all year | 004 |
| Copper, dissolved [as Cu] | daily maximum | ≤ .0612 mg/L | all year | 004 |
| Copper, dissolved [as Cu] | daily maximum | ≤ .0612 mg/L | all year | 004 |
| Copper, total [as Cu] | monthly average | report only (mg/L) | all year | 004 |
| Copper, total [as Cu] | monthly average | report only (mg/L) | all year | 004 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 004 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 004 |
| Iron, total [as Fe] | monthly average | report only (mg/L) | all year | 004 |
| Iron, total [as Fe] | monthly average | report only (mg/L) | all year | 004 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 004 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 004 |
| Iron, dissolved [as Fe] | monthly average | report only (mg/L) | all year | 004 |
| Iron, dissolved [as Fe] | monthly average | report only (mg/L) | all year | 004 |
| Iron, dissolved [as Fe] | daily maximum | ≤ 1 mg/L | all year | 004 |
| Iron, dissolved [as Fe] | daily maximum | ≤ 1 mg/L | all year | 004 |
| Lead, dissolved [as Pb] | monthly average | ≤ .1 mg/L | all year | 004 |
| Lead, dissolved [as Pb] | monthly average | ≤ .1 mg/L | all year | 004 |
| Lead, dissolved [as Pb] | daily maximum | ≤ .2 mg/L | all year | 004 |
| Lead, dissolved [as Pb] | daily maximum | ≤ .2 mg/L | all year | 004 |
| Lead, total [as Pb] | monthly average | report only (mg/L) | all year | 004 |
| Lead, total [as Pb] | monthly average | report only (mg/L) | all year | 004 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 004 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 004 |
| Nickel, dissolved [as Ni] | monthly average | ≤ .402 mg/L | all year | 004 |
| Nickel, dissolved [as Ni] | monthly average | ≤ .402 mg/L | all year | 004 |
| Nickel, dissolved [as Ni] | daily maximum | ≤ .804 mg/L | all year | 004 |
| Nickel, dissolved [as Ni] | daily maximum | ≤ .804 mg/L | all year | 004 |
| Nickel, total [as Ni] | monthly average | report only (mg/L) | all year | 004 |
| Nickel, total [as Ni] | monthly average | report only (mg/L) | all year | 004 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 004 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 004 |
| Vanadium, total [as V] | daily maximum | report only (mg/L) | all year | 004 |
| Vanadium, total [as V] | daily maximum | report only (mg/L) | all year | 004 |
| Zinc, dissolved [as Zn] | monthly average | ≤ 1 mg/L | all year | 004 |
| Zinc, dissolved [as Zn] | monthly average | ≤ 1 mg/L | all year | 004 |
| Zinc, dissolved [as Zn] | daily maximum | ≤ 1 mg/L | all year | 004 |
| Zinc, dissolved [as Zn] | daily maximum | ≤ 1 mg/L | all year | 004 |
| Zinc, total [as Zn] | monthly average | report only (mg/L) | all year | 004 |
| Zinc, total [as Zn] | monthly average | report only (mg/L) | all year | 004 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 004 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 004 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec | 004 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec | 004 |
| Oxidants, total residual | instantaneous maximum | ≤ .252 mg/L | Jan, Apr, Jul, Oct | 004 |
| Oxidants, total residual | instantaneous maximum | ≤ .252 mg/L | Jan, Apr, Jul, Oct | 004 |
| Surfactants [MBAS] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 004 |
| Surfactants [MBAS] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 004 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 400000 gal/d | all year | 004 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 400000 gal/d | all year | 004 |
| Flow | monthly average | report only (gal/d) | all year | 004 |
| Flow | monthly average | report only (gal/d) | all year | 004 |
| Flow | daily maximum | ≤ 400000 gal/d | all year | 004 |
| Flow | daily maximum | ≤ 400000 gal/d | all year | 004 |
| Hydrazine | daily maximum | ≤ 5 ug/L | Jan, Apr, Jul, Oct | 004 |
| Hydrazine | daily maximum | ≤ 5 ug/L | Jan, Apr, Jul, Oct | 004 |
| Duration of discharge | daily maximum | report only (hr/d) | all year | 004 |
| Duration of discharge | daily maximum | report only (hr/d) | all year | 004 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Jan, Apr, Jul, Oct | 004 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Jan, Apr, Jul, Oct | 004 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Feb, Mar, May, Jun, Aug, Sep, Nov, Dec | 004 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Feb, Mar, May, Jun, Aug, Sep, Nov, Dec | 004 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Jan, Apr, Jul, Oct | 004 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Jan, Apr, Jul, Oct | 004 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Feb, Mar, May, Jun, Aug, Sep, Nov, Dec | 004 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Feb, Mar, May, Jun, Aug, Sep, Nov, Dec | 004 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Jan, Apr, Jul, Oct | 004 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Jan, Apr, Jul, Oct | 004 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Feb, Mar, May, Jun, Aug, Sep, Nov, Dec | 004 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Feb, Mar, May, Jun, Aug, Sep, Nov, Dec | 004 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Jan, Apr, Jul, Oct | 004 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Jan, Apr, Jul, Oct | 004 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Feb, Mar, May, Jun, Aug, Sep, Nov, Dec | 004 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Feb, Mar, May, Jun, Aug, Sep, Nov, Dec | 004 |
| pH | instantaneous minimum | ≥ 6 SU | Mar | 006 |
| pH | instantaneous minimum | ≥ 6 SU | Mar | 006 |
| pH | instantaneous maximum | ≤ 9 SU | Mar | 006 |
| pH | instantaneous maximum | ≤ 9 SU | Mar | 006 |
| Solids, total suspended | instantaneous maximum | report only (mg/L) | Mar | 006 |
| Solids, total suspended | instantaneous maximum | report only (mg/L) | Mar | 006 |
| Copper, total [as Cu] | instantaneous maximum | report only (mg/L) | Mar | 006 |
| Copper, total [as Cu] | instantaneous maximum | report only (mg/L) | Mar | 006 |
| Lead, total [as Pb] | instantaneous maximum | report only (mg/L) | Mar | 006 |
| Lead, total [as Pb] | instantaneous maximum | report only (mg/L) | Mar | 006 |
| Nickel, total [as Ni] | instantaneous maximum | report only (mg/L) | Mar | 006 |
| Nickel, total [as Ni] | instantaneous maximum | report only (mg/L) | Mar | 006 |
| Zinc, total [as Zn] | instantaneous maximum | report only (mg/L) | Mar | 006 |
| Zinc, total [as Zn] | instantaneous maximum | report only (mg/L) | Mar | 006 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 450000 gal/d | Mar | 006 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 450000 gal/d | Mar | 006 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Mar | 006 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Mar | 006 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec | 006 |
| Pass/Fail Static 4 Day Chronic Mysidopsis Bahia | average | report only (pass=0;fail=1) | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec | 006 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Mar | 006 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Mar | 006 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec | 006 |
| Pass/Fail Static 4 Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec | 006 |
Cited limits by parameter: Connecticut's rules and the federal ones.
Same industry: the 12 Electric Services permits in Connecticut.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/CT0003760 · MCP: https://passage-data.com/mcp