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Marcus Hook Energy LP

Electric And Other Services Combined, major discharger, Marcus Hook, Pennsylvania. NPDES permit PA0244449, in force until Jul 31, 2031. Last 12 months: no values over a limit, 32 required values missing, 2 of 14 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (32 values), form Q quarterly, form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 17 reports late

Limits in force (42)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitinstantaneous maximum≤ 95 deg Fall year
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 100 mg/Lall year
Solids, total suspendedmonthly average≤ 1080 lb/dall year
Solids, total suspendeddaily maximum≤ 3602 lb/dall year
Oil & Greasemonthly average≤ 15 mg/Lall year
Oil & Greasedaily maximum≤ 20 mg/Lall year
Oil & Greasemonthly average≤ 540 lb/dall year
Oil & Greasedaily maximum≤ 720 lb/dall 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
Chromium, hexavalent [as Cr]monthly averagereport only (mg/L)all year
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)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 averagereport only (mg/L)all year
Copper, total [as Cu]daily maximumreport only (mg/L)all year
Zinc, total [as Zn]monthly average≤ 1 mg/Lall year
Zinc, total [as Zn]daily maximum≤ 1 mg/Lall year
Aluminum, total [as Al]monthly averagereport only (mg/L)all year
Aluminum, total [as Al]daily maximumreport only (mg/L)all year
Benzidinedaily maximumreport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .05 mg/Lall year
Chlorine, total residualinstantaneous maximum≤ .1 mg/Lall year
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/L)all year
Perfluorooctanesulfonatedaily maximumreport only (ng/L)all year
PCBs Dry Weather Analysisdaily maximumreport only (pg/L)all year
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/L)all year
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/L)all year
Toxicity [acute], Ceriodaphnia dubiadaily maximum≤ 2.9 tox acuteall year
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximum≤ 2.9 tox acuteall year
Solids, total dissolvedmonthly average≤ 5000 mg/Lall year
Solids, total dissolveddaily maximum≤ 10000 mg/Lall year
Solids, total dissolvedmonthly average≤ 180144 lb/dall year
Solids, total dissolveddaily maximum≤ 360288 lb/dall year
Bromide [as Br]quarterly averagereport only (mg/L)all year
Bromide [as Br]daily maximumreport only (mg/L)all year

How strict are these limits?

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

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0244449 · MCP: https://passage-data.com/mcp