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Westlake Epoxy, Inc

Plastics Materials And Resins, Bedford Park, Illinois. NPDES permit IL0075205, in force until Jul 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 004 form 0 monthly (7 values), outfall 004 form P quarterly (41 values), outfall 005 form 0 monthly (9 values), outfall 005 form P quarterly (41 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 24 reports late

Limits in force (104)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly maximum≤ 63 deg FJan, Feb, Mar, Dec004
Temperature, water deg. fahrenheitmonthly maximum≤ 93 deg FApr–Nov004
pHmonthly minimum≥ 6.5 SUall year004
pHmonthly maximum≤ 9 SUall year004
Solids, total suspended30-day average≤ 15 mg/Lall year004
Solids, total suspendeddaily maximum≤ 30 mg/Lall year004
Zinc, total [as Zn]30-day averagereport only (mg/L)Jan, Apr, Jul, Oct004
Zinc, total [as Zn]daily maximumreport only (mg/L)Jan, Apr, Jul, Oct004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/L)all year004
Perfluorobutanoic acid (PFBA)daily maximumreport only (ng/L)all year004
Perfluorooctanesulfonamide (PFOSA)daily maximumreport only (ng/L)all year004
Perfluoropentanoic acid (PFPeA)daily maximumreport only (ng/L)all year004
Perfluorohexanoic acid (PFHxA)daily maximumreport only (ng/L)all year004
Perfluoroheptanoic acid (PFHpA)daily maximumreport only (ng/L)all year004
Perfluorononanoic acid (PFNA)daily maximumreport only (ng/L)all year004
Perfluorodecanoic acid (PFDA)daily maximumreport only (ng/L)all year004
Perfluoroundecanoic acid (PFUnA)daily maximumreport only (ng/L)all year004
Perfluorododecanoic acid (PFDoA)daily maximumreport only (ng/L)all year004
Perfluorotridecanoic acid (PFTrDA)daily maximumreport only (ng/L)all year004
Perfluorotetradecanoic acid (PFTeDA)daily maximumreport only (ng/L)all year004
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)daily maximumreport only (ng/L)all year004
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)daily maximumreport only (ng/L)all year004
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)daily maximumreport only (ng/L)all year004
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)daily maximumreport only (ng/L)all year004
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/L)all year004
Perfluorodecanesulfonic acid (PFDS)daily maximumreport only (ng/L)all year004
Perfluoroheptanesulfonic acid (PFHpS)daily maximumreport only (ng/L)all year004
Perfluorohexanesulfonic acid (PFHxS)daily maximumreport only (ng/L)all year004
Perfluorooctanesulfonic acid (PFOS)daily maximumreport only (ng/L)all year004
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)daily maximumreport only (ng/L)all year004
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)daily maximumreport only (ng/L)all year004
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)daily maximumreport only (ng/L)all year004
Perfluoropentanesulfonic acid (PFPeS)daily maximumreport only (ng/L)all year004
Perfluorononanesulfonic acid (PFNS)daily maximumreport only (ng/L)all year004
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/L)all year004
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)daily maximumreport only (ng/L)all year004
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)daily maximumreport only (ng/L)all year004
Perfluorododecanesulfonic acid (PFDoS)daily maximumreport only (ng/L)all year004
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)daily maximumreport only (ng/L)all year004
N-methyl perfluorooctanesulfonamide (NMeFOSA)daily maximumreport only (ng/L)all year004
N-ethyl perfluorooctanesulfonamide (NEtFOSA)daily maximumreport only (ng/L)all year004
PFAS Sumdaily maximumreport only (ng/L)all year004
3-Perfluoropropyl propanoic acid (3:3 FTCA)daily maximumreport only (ng/L)all year004
Perfluoro-3-methoxypropanoic acid (PFMPA)daily maximumreport only (ng/L)all year004
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)daily maximumreport only (ng/L)all year004
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)daily maximumreport only (ng/L)all year004
3-Perfluoroheptyl propanoic acid (7:3 FTCA)daily maximumreport only (ng/L)all year004
Perfluoro-4-methoxybutanoic acid (PFMBA)daily maximumreport only (ng/L)all year004
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)daily maximumreport only (ng/L)all year004
Temperature, water deg. fahrenheitmonthly maximum≤ 63 deg FJan, Feb, Mar, Dec005
Temperature, water deg. fahrenheitmonthly maximum≤ 93 deg FApr–Nov005
pHmonthly minimum≥ 6.5 SUall year005
pHmonthly maximum≤ 9 SUall year005
Solids, total suspended30-day average≤ 15 mg/Lall year005
Solids, total suspendeddaily maximum≤ 30 mg/Lall year005
Copper, total [as Cu]30-day averagereport only (mg/L)all year005
Copper, total [as Cu]daily maximumreport only (mg/L)all year005
Zinc, total [as Zn]30-day averagereport only (mg/L)Jan, Apr, Jul, Oct005
Zinc, total [as Zn]daily maximumreport only (mg/L)Jan, Apr, Jul, Oct005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year005
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/L)all year005
Perfluorobutanoic acid (PFBA)daily maximumreport only (ng/L)all year005
Perfluorooctanesulfonamide (PFOSA)daily maximumreport only (ng/L)all year005
Perfluoropentanoic acid (PFPeA)daily maximumreport only (ng/L)all year005
Perfluorohexanoic acid (PFHxA)daily maximumreport only (ng/L)all year005
Perfluoroheptanoic acid (PFHpA)daily maximumreport only (ng/L)all year005
Perfluorononanoic acid (PFNA)daily maximumreport only (ng/L)all year005
Perfluorodecanoic acid (PFDA)daily maximumreport only (ng/L)all year005
Perfluoroundecanoic acid (PFUnA)daily maximumreport only (ng/L)all year005
Perfluorododecanoic acid (PFDoA)daily maximumreport only (ng/L)all year005
Perfluorotridecanoic acid (PFTrDA)daily maximumreport only (ng/L)all year005
Perfluorotetradecanoic acid (PFTeDA)daily maximumreport only (ng/L)all year005
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)daily maximumreport only (ng/L)all year005
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)daily maximumreport only (ng/L)all year005
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)daily maximumreport only (ng/L)all year005
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)daily maximumreport only (ng/L)all year005
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/L)all year005
Perfluorodecanesulfonic acid (PFDS)daily maximumreport only (ng/L)all year005
Perfluoroheptanesulfonic acid (PFHpS)daily maximumreport only (ng/L)all year005
Perfluorohexanesulfonic acid (PFHxS)daily maximumreport only (ng/L)all year005
Perfluorooctanesulfonic acid (PFOS)daily maximumreport only (ng/L)all year005
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)daily maximumreport only (ng/L)all year005
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)daily maximumreport only (ng/L)all year005
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)daily maximumreport only (ng/L)all year005
Perfluoropentanesulfonic acid (PFPeS)daily maximumreport only (ng/L)all year005
Perfluorononanesulfonic acid (PFNS)daily maximumreport only (ng/L)all year005
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/L)all year005
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)daily maximumreport only (ng/L)all year005
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)daily maximumreport only (ng/L)all year005
Perfluorododecanesulfonic acid (PFDoS)daily maximumreport only (ng/L)all year005
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)daily maximumreport only (ng/L)all year005
N-methyl perfluorooctanesulfonamide (NMeFOSA)daily maximumreport only (ng/L)all year005
N-ethyl perfluorooctanesulfonamide (NEtFOSA)daily maximumreport only (ng/L)all year005
PFAS Sumdaily maximumreport only (ng/L)all year005
3-Perfluoropropyl propanoic acid (3:3 FTCA)daily maximumreport only (ng/L)all year005
Perfluoro-3-methoxypropanoic acid (PFMPA)daily maximumreport only (ng/L)all year005
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)daily maximumreport only (ng/L)all year005
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)daily maximumreport only (ng/L)all year005
3-Perfluoroheptyl propanoic acid (7:3 FTCA)daily maximumreport only (ng/L)all year005
Perfluoro-4-methoxybutanoic acid (PFMBA)daily maximumreport only (ng/L)all year005
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)daily maximumreport only (ng/L)all year005

How strict are these limits?

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

Same industry: the 58 Chemicals and Allied Products permits in Illinois.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IL0075205 · MCP: https://passage-data.com/mcp