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Calpine Mid Merit LLC

Electric Services, Delta, Pennsylvania. NPDES permit PA0282022, in force until Apr 30, 2031. Last 12 months: no values over a limit, 14 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 011 form A monthly (14 values), outfall 002 form Y yearly, outfall 011 form Q quarterly
Last report on file
June 2026

Limits in force (25)

ParameterStatisticLimitMonthsOutfall
pHdaily maximumreport only (SU)all year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Oil & Greasedaily maximumreport only (mg/L)all year002
Copper, total [as Cu]daily maximumreport only (mg/L)all year002
Iron, total [as Fe]daily maximumreport only (mg/L)all year002
Nickel, total [as Ni]daily maximumreport only (mg/L)all year002
Zinc, total [as Zn]daily maximumreport only (mg/L)all year002
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year011
Temperature, water deg. fahrenheitinstantaneous maximum≤ 110 deg Fall year011
pHdaily minimum≥ 6 SUall year011
pHinstantaneous maximum≤ 9 SUall year011
Solids, total suspendedmonthly average≤ 30 mg/Lall year011
Solids, total suspendeddaily maximum≤ 60 mg/Lall year011
Solids, total suspendedinstantaneous maximum≤ 75 mg/Lall year011
Oil & Greasemonthly average≤ 15 mg/Lall year011
Oil & Greasedaily maximum≤ 20 mg/Lall year011
Oil & Greaseinstantaneous maximum≤ 30 mg/Lall year011
Aluminum, total [as Al]quarterly averagereport only (mg/L)all year011
Aluminum, total [as Al]daily maximumreport only (mg/L)all year011
Aluminum, total [as Al]quarterly averagereport only (lb/d)all year011
Aluminum, total [as Al]daily maximumreport only (lb/d)all year011
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year011
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year011
Chlorine, free availabledaily maximum≤ .2 mg/Lall year011
Chlorine, free availableinstantaneous maximum≤ .5 mg/Lall year011

How strict are these limits?

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

Same industry: the 63 Electric Services permits in Pennsylvania.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0282022 · MCP: https://passage-data.com/mcp