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Alta Performance Materials US LLC

Industrial Organic Chemicals, Pittsburgh, Pennsylvania. NPDES permit PA0003832, in force until Oct 31, 2028. Last 12 months: over a limit 3 times (last January 2026), 41 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 101 form A monthly (13 values), outfall 201 form A monthly (13 values), outfall 301 form A monthly (15 values)
Renewal application due
May 4, 2028 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 0 of 36 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingOutfallParameterReportedLimitOver by
December 2025201Solids, total suspended, daily maximum64 mg/L≤ 60 mg/L7%
January 2026101Oxygen demand, chem. [high level] [COD], daily maximum80.8 mg/L≤ 60 mg/L35%
January 2026201Chlorine, total residual, monthly average< .58 mg/L≤ .5 mg/L16%

Limits in force (41)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitinstantaneous maximum≤ 110 deg Fall year101
Oxygen demand, chem. [high level] [COD]monthly average≤ 30 mg/Lall year101
Oxygen demand, chem. [high level] [COD]daily maximum≤ 60 mg/Lall year101
pHinstantaneous minimum≥ 6 SUall year101
pHinstantaneous maximum≤ 9 SUall year101
Solids, total suspendedmonthly average≤ 30 mg/Lall year101
Solids, total suspendeddaily maximum≤ 60 mg/Lall year101
Oil & Greasemonthly average≤ 15 mg/Lall year101
Oil & Greasedaily maximum≤ 20 mg/Lall 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
Temperature, water deg. fahrenheitinstantaneous maximum≤ 110 deg Fall year201
Oxygen demand, chem. [high level] [COD]monthly average≤ 30 mg/Lall year201
Oxygen demand, chem. [high level] [COD]daily maximum≤ 60 mg/Lall year201
pHinstantaneous minimum≥ 6 SUall year201
pHinstantaneous maximum≤ 9 SUall year201
Solids, total suspendedmonthly average≤ 30 mg/Lall year201
Solids, total suspendeddaily maximum≤ 60 mg/Lall year201
Oil & Greasemonthly average≤ 15 mg/Lall year201
Oil & Greasedaily maximum≤ 20 mg/Lall year201
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year201
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year201
Chlorine, total residualmonthly average≤ .5 mg/Lall year201
Chlorine, total residualdaily maximum≤ 1 mg/Lall year201
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year301
pHinstantaneous minimum≥ 6 SUall year301
pHinstantaneous maximum≤ 9 SUall year301
Solids, total suspendedmonthly average≤ 30 mg/Lall year301
Solids, total suspendedinstantaneous maximum≤ 60 mg/Lall year301
Oil & Greasemonthly average≤ 15 mg/Lall year301
Oil & Greaseinstantaneous maximum≤ 30 mg/Lall year301
Iron, dissolved [as Fe]instantaneous maximum≤ 7 mg/Lall year301
Benzene, ethylbenzene, toluene, xylene combinationinstantaneous maximum≤ .25 mg/Lall year301
Benzeneinstantaneous maximum≤ .0025 mg/Lall year301
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year301
Chlorine, total residualmonthly averagereport only (mg/L)all year301
Chlorine, total residualinstantaneous maximum≤ .05 mg/Lall year301
Flow, totalmonthly totalreport only (Mgal)all year301
Duration of dischargemonthly averagereport only (hr)all year301

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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Your permit document is the final word. As JSON: /api/v1/permits/PA0003832 · MCP: https://passage-data.com/mcp