Passage Data · Check a report · Use it from your AI

DEVON POWER LLC c/o EASTERN GENERATION LLC

Electric Services, major discharger, Milford, Connecticut. NPDES permit CT0003107 expired Feb 28, 2017; 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
0 values over a limit, 0 required values missing, 1 of 12 reports late

Limits in force (38)

ParameterStatisticLimitMonths
Flow ratemonthly average≤ 216000 gal/dall year
Oxygen, dissolved [DO]instantaneous maximumreport only (mg/L)all year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Oil & Greasemonthly averagereport only (mg/L)all year
Oil & Greasedaily maximumreport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (lb/d)all year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Nitrogen, nitrite total [as N]daily maximumreport only (mg/L)all year
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year
Copper, total [as Cu]monthly averagereport only (ug/L)all year
Copper, total [as Cu]daily maximum≤ 25 ug/Lall year
Iron, total [as Fe]monthly averagereport only (mg/L)all year
Iron, total [as Fe]daily maximumreport only (mg/L)all year
Lead, total [as Pb]monthly averagereport only (mg/L)all year
Lead, total [as Pb]daily maximumreport only (mg/L)all year
Nickel, total [as Ni]monthly average≤ 73 ug/Lall year
Nickel, total [as Ni]daily maximum≤ 157 ug/Lall year
Nickel, total [as Ni]monthly average≤ 60 g/dall year
Nickel, total [as Ni]daily maximum≤ 128 g/dall year
Zinc, total [as Zn]monthly averagereport only (mg/L)all year
Zinc, total [as Zn]daily maximumreport only (mg/L)all year
Aluminum, total [as Al]monthly averagereport only (mg/L)all year
Aluminum, total [as Al]daily maximumreport only (mg/L)all year
Flow, maximum during 24 hr perioddaily maximum≤ 432000 gal/dall year
Chlorine, total residualmonthly average≤ .201 mg/Lall year
Chlorine, total residualdaily maximum≤ .541 mg/Lall year
Propylene glycol, totalmonthly averagereport only (mg/L)all year
Propylene glycol, totaldaily maximumreport only (mg/L)all year
pH, maximuminstantaneous maximum≤ 9 SUall year
pH, minimuminstantaneous minimum≥ 6 SUall year
Flowdaily maximum≤ 432000 gal/dall year
Duration of dischargedaily maximumreport only (d)all year
LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)minimum≥ 100 %Feb, Aug
LC50 Static 48Hr Acute Cyprinodon variegatusminimum≥ 100 %Feb, Aug

How strict are these limits?

Cited limits by parameter: Connecticut's rules and the federal ones.

Same industry: the 12 Electric Services permits in Connecticut.

Check this month's numbers Email me before each report is due

· 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/CT0003107 · MCP: https://passage-data.com/mcp