Passage Data · Check a report · Use it from your AI
Electric Services, major discharger, Uncasville, Connecticut. NPDES permit CT0003115 expired Feb 27, 2006; its limits still apply. Last 12 months: no values over a limit, 1 of 84 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 |
| Flow rate | monthly average | report only (MGD) | all year | 001 |
| Flow rate | monthly average | report only (MGD) | all year | 001 |
| Flow, maximum during 24 hr period | daily maximum | report only (MGD) | all year | 001 |
| Flow, maximum during 24 hr period | daily maximum | report only (MGD) | all year | 001 |
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 98 deg F | all year | 003 |
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 98 deg F | all year | 003 |
| Flow rate | monthly average | report only (MGD) | all year | 003 |
| Flow rate | monthly average | report only (MGD) | all year | 003 |
| Flow rate | instantaneous maximum | report only (gal/min) | Jun, Dec | 003 |
| Flow rate | instantaneous maximum | report only (gal/min) | Jun, Dec | 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 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 74.9 MGD | all year | 003 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 74.9 MGD | all year | 003 |
| Chlorine, total residual | instantaneous maximum | ≤ .2 mg/L | all year | 003 |
| Chlorine, total residual | instantaneous maximum | ≤ .2 mg/L | all year | 003 |
| Flow | monthly average | report only (MGD) | Jun, Dec | 003 |
| Flow | monthly average | report only (MGD) | Jun, Dec | 003 |
| Flow | daily maximum | ≤ 74.9 MGD | Jun, Dec | 003 |
| Flow | daily maximum | ≤ 74.9 MGD | Jun, Dec | 003 |
| Duration of discharge | daily maximum | report only (hr/d) | Jun, Dec | 003 |
| Duration of discharge | daily maximum | report only (hr/d) | Jun, Dec | 003 |
| LF Pass/Fail Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | average | report only (pass=0;fail=1) | Jun, Dec | 003 |
| LF Pass/Fail Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | average | report only (pass=0;fail=1) | Jun, Dec | 003 |
| LF Pass/Fail Statre 7Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Jun, Dec | 003 |
| LF Pass/Fail Statre 7Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Jun, Dec | 003 |
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 106 deg F | all year | 004 |
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 106 deg F | all year | 004 |
| Flow rate | monthly average | report only (MGD) | all year | 004 |
| Flow rate | monthly average | report only (MGD) | all year | 004 |
| Flow rate | instantaneous maximum | report only (gal/min) | Jun, Dec | 004 |
| Flow rate | instantaneous maximum | report only (gal/min) | Jun, Dec | 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 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 239.6 MGD | all year | 004 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 239.6 MGD | all year | 004 |
| Chlorine, total residual | instantaneous maximum | ≤ .2 mg/L | all year | 004 |
| Chlorine, total residual | instantaneous maximum | ≤ .2 mg/L | all year | 004 |
| Flow | monthly average | report only (MGD) | Jun, Dec | 004 |
| Flow | monthly average | report only (MGD) | Jun, Dec | 004 |
| Flow | daily maximum | ≤ 239.6 MGD | Jun, Dec | 004 |
| Flow | daily maximum | ≤ 239.6 MGD | Jun, Dec | 004 |
| Duration of discharge | daily maximum | report only (hr/d) | Jun, Dec | 004 |
| Duration of discharge | daily maximum | report only (hr/d) | Jun, Dec | 004 |
| LF Pass/Fail Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | average | report only (pass=0;fail=1) | Jun, Dec | 004 |
| LF Pass/Fail Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | average | report only (pass=0;fail=1) | Jun, Dec | 004 |
| LF Pass/Fail Statre 7Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Jun, Dec | 004 |
| LF Pass/Fail Statre 7Day Chronic Cyprinodon Variega | average | report only (pass=0;fail=1) | Jun, Dec | 004 |
| pH | instantaneous minimum | ≥ 6 SU | Jun | 008 |
| pH | instantaneous maximum | ≤ 9 SU | Jun | 008 |
| Solids, total suspended | instantaneous maximum | report only (mg/L) | Jun | 008 |
| Oil & Grease | instantaneous maximum | ≤ 10 mg/L | Jun | 008 |
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 150 deg F | all year | 009 |
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 150 deg F | all year | 009 |
| Flow rate | instantaneous maximum | ≤ 31.25 gal/min | all year | 009 |
| Flow rate | instantaneous maximum | ≤ 31.25 gal/min | all year | 009 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 009 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 009 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 009 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 009 |
| Solids, total suspended | instantaneous maximum | report only (mg/L) | all year | 009 |
| Solids, total suspended | instantaneous maximum | report only (mg/L) | all year | 009 |
| Chlorine, total residual | instantaneous maximum | report only (mg/L) | all year | 009 |
| Chlorine, total residual | instantaneous maximum | report only (mg/L) | all year | 009 |
| pH | instantaneous minimum | ≥ 6 SU | Jun | 012 |
| pH | instantaneous maximum | ≤ 9 SU | Jun | 012 |
| Solids, total suspended | instantaneous maximum | report only (mg/L) | Jun | 012 |
| Oil & Grease | instantaneous maximum | ≤ 10 mg/L | Jun | 012 |
| pH | instantaneous minimum | ≥ 6 SU | Jun | 013 |
| pH | instantaneous maximum | ≤ 9 SU | Jun | 013 |
| Solids, total suspended | instantaneous maximum | report only (mg/L) | Jun | 013 |
| Oil & Grease | instantaneous maximum | ≤ 10 mg/L | Jun | 013 |
| pH | instantaneous minimum | ≥ 6 SU | Jun | 014 |
| pH | instantaneous maximum | ≤ 9 SU | Jun | 014 |
| Solids, total suspended | daily maximum | report only (mg/L) | Jun | 014 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | Jun | 014 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 024 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 024 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 024 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 024 |
| Solids, total suspended | instantaneous maximum | report only (mg/L) | all year | 024 |
| Solids, total suspended | instantaneous maximum | report only (mg/L) | all year | 024 |
| Oil & Grease | instantaneous maximum | ≤ 10 mg/L | all year | 024 |
| Oil & Grease | instantaneous maximum | ≤ 10 mg/L | all year | 024 |
| pH | instantaneous minimum | ≥ 6 SU | Mar, Jun, Sep, Dec | 025 |
| pH | instantaneous minimum | ≥ 6 SU | Mar, Jun, Sep, Dec | 025 |
| pH | instantaneous maximum | ≤ 9 SU | Mar, Jun, Sep, Dec | 025 |
| pH | instantaneous maximum | ≤ 9 SU | Mar, Jun, Sep, Dec | 025 |
| Solids, total suspended | instantaneous maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 025 |
| Solids, total suspended | instantaneous maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 025 |
| Oil & Grease | instantaneous maximum | ≤ 10 mg/L | Mar, Jun, Sep, Dec | 025 |
| Oil & Grease | instantaneous maximum | ≤ 10 mg/L | Mar, Jun, Sep, Dec | 025 |
| Chlorine, total residual | instantaneous maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 025 |
| Chlorine, total residual | instantaneous maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 025 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 030 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 030 |
| Solids, total suspended | instantaneous maximum | report only (mg/L) | all year | 030 |
| Oil & Grease | instantaneous maximum | ≤ 10 mg/L | all year | 030 |
| Zinc, total [as Zn] | instantaneous maximum | report only (mg/L) | all year | 030 |
| Flow rate | monthly average | ≤ 144000 gal/d | all year | 053 |
| Flow rate | instantaneous maximum | report only (gal/min) | all year | 053 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 053 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 053 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 053 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 053 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 053 |
| Solids, total suspended | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year | 053 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 053 |
| Oil & Grease | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 053 |
| Oil & Grease | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 12.25 mg/L | all year | 053 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 24.5 mg/L | all year | 053 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 053 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year | 053 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year | 053 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 053 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 053 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year | 053 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 053 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 053 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 053 |
| Fluoride, total [as F] | monthly average | report only (mg/L) | all year | 053 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 053 |
| Chromium, total [as Cr] | monthly average | report only (mg/L) | all year | 053 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 053 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 053 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Copper, total [as Cu] | monthly average | ≤ 1 mg/L | all year | 053 |
| Copper, total [as Cu] | daily maximum | ≤ 1 mg/L | all year | 053 |
| Copper, total [as Cu] | monthly average | ≤ 13.1 g/d | all year | 053 |
| Copper, total [as Cu] | daily maximum | ≤ 26.2 g/d | all year | 053 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 053 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Iron, total [as Fe] | monthly average | ≤ 1 mg/L | all year | 053 |
| Iron, total [as Fe] | daily maximum | ≤ 1 mg/L | all year | 053 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 053 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Lead, total [as Pb] | monthly average | ≤ .1 mg/L | all year | 053 |
| Lead, total [as Pb] | daily maximum | ≤ .5 mg/L | all year | 053 |
| Lead, total [as Pb] | monthly average | ≤ 72.4 g/d | all year | 053 |
| Lead, total [as Pb] | daily maximum | ≤ 145 g/d | all year | 053 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 053 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Nickel, total [as Ni] | monthly average | ≤ 73.2 g/d | all year | 053 |
| Nickel, total [as Ni] | daily maximum | ≤ 147 g/d | all year | 053 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 053 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Vanadium, total [as V] | monthly average | report only (mg/L) | all year | 053 |
| Vanadium, total [as V] | daily maximum | report only (mg/L) | all year | 053 |
| Vanadium, total [as V] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 053 |
| Vanadium, total [as V] | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Zinc, total [as Zn] | monthly average | ≤ 1 mg/L | all year | 053 |
| Zinc, total [as Zn] | daily maximum | ≤ 2 mg/L | all year | 053 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 053 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Aluminum, total [as Al] | monthly average | ≤ 2 mg/L | all year | 053 |
| Aluminum, total [as Al] | daily maximum | ≤ 4 mg/L | all year | 053 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 288000 gal/d | all year | 053 |
| Chlorine, total residual | instantaneous maximum | ≤ .2 mg/L | all year | 053 |
| Chlorine, total residual | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 053 |
| Chlorine, total residual | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Flow | monthly average | report only (gal/d) | all year | 053 |
| Flow | daily maximum | ≤ 288000 gal/d | all year | 053 |
| Hydrazine | instantaneous maximum | report only (ug/L) | all year | 053 |
| Hydrazine | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 053 |
| Hydrazine | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Duration of discharge | daily maximum | report only (hr/d) | all year | 053 |
| Pass/Fail Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | average | report only (pass=0;fail=1) | Mar, Jun, Sep, Dec | 053 |
| Pass/Fail Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | average | report only (pass=0;fail=1) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
| Pass/Fail Static 96 Hr Acute Cyprinodon Variega | average | report only (pass=0;fail=1) | Mar, Jun, Sep, Dec | 053 |
| Pass/Fail Static 96 Hr Acute Cyprinodon Variega | average | report only (pass=0;fail=1) | Jan, Feb, Apr, May, Jul, Aug, Oct, Nov | 053 |
Cited limits by parameter: Connecticut's rules and the federal ones.
Same industry: the 12 Electric Services permits in Connecticut.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/CT0003115 · MCP: https://passage-data.com/mcp