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Milford Power Company LLC

Industrial or other facility, major discharger, Milford, Connecticut. NPDES permit CT0030309 expired Jan 31, 2013; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 30 days after each period: form 1 monthly (36 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 9 required values missing, 2 of 12 reports late

Limits in force (45)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitinstantaneous maximum≤ 96 deg Fall year
Flow ratemonthly average≤ 1.52 MGDall year
Flow ratedaily maximum≤ 4000 gal/minall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Salinitydaily maximumreport only (g/d)Jan, Apr, Jul, Oct
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Solids, total suspendeddaily maximum≤ 30 mg/Lall year
Oil & Greasemonthly average≤ 10 mg/Lall year
Oil & Greasedaily maximum≤ 20 mg/Lall year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)all year
Nitrogen, nitrite total [as N]monthly averagereport only (mg/L)all year
Nitrogen, nitrite total [as N]daily maximumreport only (mg/L)all year
Nitrogen, nitrite total [as N]monthly averagereport only (lb/d)all year
Nitrogen, nitrite total [as N]daily maximumreport only (lb/d)all year
Nitrogen, nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all year
Nitrogen, nitrate total [as N]monthly averagereport only (lb/d)all year
Nitrogen, nitrate total [as N]daily maximumreport only (lb/d)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]daily minimumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (lb/d)all year
Chromium, total [as Cr]monthly average≤ .2 mg/Lall year
Chromium, total [as Cr]daily maximum≤ .2 mg/Lall year
Copper, total [as Cu]monthly average≤ .086 mg/Lall year
Copper, total [as Cu]daily maximum≤ .174 mg/Lall year
Lead, total [as Pb]monthly averagereport only (mg/L)Jan, Apr, Jul, Oct
Lead, total [as Pb]daily maximumreport only (mg/L)Jan, Apr, Jul, Oct
Nickel, total [as Ni]monthly averagereport only (mg/L)Jan, Apr, Jul, Oct
Nickel, total [as Ni]daily maximumreport only (mg/L)Jan, Apr, Jul, Oct
Zinc, total [as Zn]monthly average≤ 1 mg/Lall year
Zinc, total [as Zn]daily maximum≤ 1 mg/Lall year
Flow, maximum during 24 hr perioddaily maximum≤ 4.54 MGDall year
Chlorine, total residualmonthly averagereport only (mg/L)Jan, Apr, Jul, Oct
Chlorine, total residualdaily maximumreport only (mg/L)Jan, Apr, Jul, Oct
Chlorine, free availablemonthly average≤ .2 mg/Lall year
Chlorine, free availabledaily maximum≤ .5 mg/Lall year
Flowmonthly averagereport only (MGD)all year
Flowdaily maximum≤ 4.54 MGDall year
LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)minimum≥ 90 %Jan, Apr, Jul, Oct
LC50 Static 48Hr Acute Cyprinodon variegatusminimum≥ 90 %Jan, Apr, Jul, Oct

How strict are these limits?

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/CT0030309 · MCP: https://passage-data.com/mcp