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Nalco Prod LLC

Chemical Preparations, Ellwood City, Pennsylvania. NPDES permit PA0003824, in force until May 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 101 form A monthly (7 values), outfall 113 form A monthly (17 values), outfall 201 form A monthly (17 values), outfall 001 form S twice a year, outfall 005 form S twice a year, outfall 006 form S twice a year, and 5 more forms
Renewal application due
Dec 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
July 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 52 reports late

Limits in force (113)

ParameterStatisticLimitMonthsOutfall
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year001
pHdaily maximumreport only (SU)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Iron, total [as Fe]daily maximumreport only (mg/L)all year001
Lead, total [as Pb]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Aluminum, total [as Al]daily maximumreport only (mg/L)all year001
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year005
pHdaily maximumreport only (SU)all year005
Solids, total suspendeddaily maximumreport only (mg/L)all year005
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year005
Phosphorus, total [as P]daily maximumreport only (mg/L)all year005
Iron, total [as Fe]daily maximumreport only (mg/L)all year005
Lead, total [as Pb]daily maximumreport only (mg/L)all year005
Zinc, total [as Zn]daily maximumreport only (mg/L)all year005
Aluminum, total [as Al]daily maximumreport only (mg/L)all year005
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year006
pHdaily maximumreport only (SU)all year006
Solids, total suspendeddaily maximumreport only (mg/L)all year006
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year006
Phosphorus, total [as P]daily maximumreport only (mg/L)all year006
Iron, total [as Fe]daily maximumreport only (mg/L)all year006
Lead, total [as Pb]daily maximumreport only (mg/L)all year006
Zinc, total [as Zn]daily maximumreport only (mg/L)all year006
Aluminum, total [as Al]daily maximumreport only (mg/L)all year006
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year013
pHdaily maximumreport only (SU)all year013
Solids, total suspendeddaily maximumreport only (mg/L)all year013
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year013
Phosphorus, total [as P]daily maximumreport only (mg/L)all year013
Iron, total [as Fe]daily maximumreport only (mg/L)all year013
Lead, total [as Pb]daily maximumreport only (mg/L)all year013
Zinc, total [as Zn]daily maximumreport only (mg/L)all year013
Aluminum, total [as Al]daily maximumreport only (mg/L)all year013
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year014
pHdaily maximumreport only (SU)all year014
Solids, total suspendeddaily maximumreport only (mg/L)all year014
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year014
Phosphorus, total [as P]daily maximumreport only (mg/L)all year014
Iron, total [as Fe]daily maximumreport only (mg/L)all year014
Lead, total [as Pb]daily maximumreport only (mg/L)all year014
Zinc, total [as Zn]daily maximumreport only (mg/L)all year014
Aluminum, total [as Al]daily maximumreport only (mg/L)all year014
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year016
pHdaily maximumreport only (SU)all year016
Solids, total suspendeddaily maximumreport only (mg/L)all year016
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year016
Phosphorus, total [as P]daily maximumreport only (mg/L)all year016
Iron, total [as Fe]daily maximumreport only (mg/L)all year016
Lead, total [as Pb]daily maximumreport only (mg/L)all year016
Zinc, total [as Zn]daily maximumreport only (mg/L)all year016
Aluminum, total [as Al]daily maximumreport only (mg/L)all year016
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year017
pHdaily maximumreport only (SU)all year017
Solids, total suspendeddaily maximumreport only (mg/L)all year017
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year017
Phosphorus, total [as P]daily maximumreport only (mg/L)all year017
Iron, total [as Fe]daily maximumreport only (mg/L)all year017
Lead, total [as Pb]daily maximumreport only (mg/L)all year017
Zinc, total [as Zn]daily maximumreport only (mg/L)all year017
Aluminum, total [as Al]daily maximumreport only (mg/L)all year017
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year018
pHdaily maximumreport only (SU)all year018
Solids, total suspendeddaily maximumreport only (mg/L)all year018
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year018
Phosphorus, total [as P]daily maximumreport only (mg/L)all year018
Iron, total [as Fe]daily maximumreport only (mg/L)all year018
Lead, total [as Pb]daily maximumreport only (mg/L)all year018
Zinc, total [as Zn]daily maximumreport only (mg/L)all year018
Aluminum, total [as Al]daily maximumreport only (mg/L)all year018
Temperature, water deg. fahrenheitinstantaneous maximum≤ 110 deg Fall year101
pHinstantaneous minimum≥ 6 SUall year101
pHinstantaneous maximum≤ 9 SUall year101
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
Chlorine, total residualmonthly average≤ .5 mg/Lall year101
Chlorine, total residualdaily maximum≤ 1 mg/Lall year101
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year113
pHinstantaneous minimum≥ 6 SUall year113
pHinstantaneous maximum≤ 9 SUall year113
Solids, total suspendedmonthly average≤ 30 mg/Lall year113
Solids, total suspendedinstantaneous maximum≤ 60 mg/Lall year113
Oil & Greasemonthly average≤ 15 mg/Lall year113
Oil & Greaseinstantaneous maximum≤ 30 mg/Lall year113
Iron, dissolved [as Fe]instantaneous maximum≤ 7 mg/Lall year113
Benzene, ethylbenzene, toluene, xylene combinationinstantaneous maximum≤ .25 mg/Lall year113
Benzeneinstantaneous maximum≤ .0025 mg/Lall year113
Polychlorinated biphenyls [PCBs]monthly averagereport only (ug/L)all year113
Polychlorinated biphenyls [PCBs]instantaneous maximumreport only (ug/L)all year113
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year113
Chlorine, total residualmonthly averagereport only (mg/L)all year113
Chlorine, total residualinstantaneous maximum≤ .05 mg/Lall year113
Flow, totalmonthly totalreport only (gal)all year113
Duration of dischargemonthly averagereport only (hr)all year113
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year201
pHinstantaneous minimum≥ 6 SUall year201
pHinstantaneous maximum≤ 9 SUall year201
Solids, total suspendedmonthly average≤ 30 mg/Lall year201
Solids, total suspendedinstantaneous maximum≤ 60 mg/Lall year201
Oil & Greasemonthly average≤ 15 mg/Lall year201
Oil & Greaseinstantaneous maximum≤ 30 mg/Lall year201
Iron, dissolved [as Fe]instantaneous maximum≤ 7 mg/Lall year201
Benzene, ethylbenzene, toluene, xylene combinationinstantaneous maximum≤ .25 mg/Lall year201
Benzeneinstantaneous maximum≤ .0025 mg/Lall year201
Polychlorinated biphenyls [PCBs]monthly averagereport only (ug/L)all year201
Polychlorinated biphenyls [PCBs]instantaneous maximumreport only (ug/L)all year201
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year201
Chlorine, total residualmonthly averagereport only (mg/L)all year201
Chlorine, total residualinstantaneous maximum≤ .05 mg/Lall year201
Flow, totalmonthly totalreport only (gal)all year201
Duration of dischargemonthly averagereport only (hr)all year201

How strict are these limits?

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

Same industry: the 66 Chemicals and Allied Products 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/PA0003824 · MCP: https://passage-data.com/mcp