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Arkema Inc

Industrial Inorganic Chemicals, major discharger, Calvert City, Kentucky. NPDES permit KY0003603 expired Apr 30, 2026; its limits still apply. Last 12 months: over a limit once (last December 2025). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form 1 monthly (12 values), outfall 001 form 2 quarterly (46 values), outfall 003 form 1 monthly (7 values), outfall 004 form 1 quarterly (6 values), outfall SW01 form 2 quarterly (8 values), outfall SW05 form 2 quarterly (8 values), and 1 more form
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 41 reports late

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

Period endingParameterReportedLimitOver by
December 2025Solids, total suspended, monthly average58.8 mg/L≤ 30 mg/L96%

Limits in force (284)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximum≤ 110 deg Fall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 701 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 1890 lb/dall year001
pHminimumreport only (SU)all year001
pHmaximumreport only (SU)all year001
Solids, total suspendedmonthly average≤ 1008 lb/dall year001
Solids, total suspendeddaily maximum≤ 3259 lb/dall year001
Cyanide, total [as CN]monthly averagereport only (ug/L)all year001
Cyanide, total [as CN]daily maximumreport only (ug/L)all year001
Cyanide, total [as CN]monthly average≤ 8.012 lb/dall year001
Cyanide, total [as CN]daily maximum≤ 22.892 lb/dall year001
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Chloride [as Cl]monthly averagereport only (mg/L)all year001
Chloride [as Cl]daily maximumreport only (mg/L)all year001
Chromium, total [as Cr]monthly averagereport only (ug/L)all year001
Chromium, total [as Cr]daily maximumreport only (ug/L)all year001
Chromium, total [as Cr]monthly average≤ 22.688 lb/dall year001
Chromium, total [as Cr]daily maximum≤ 56.617 lb/dall year001
Nickel, total recoverablemonthly averagereport only (ug/L)all year001
Nickel, total recoverabledaily maximumreport only (ug/L)all year001
Nickel, total recoverablemonthly average≤ 32.24 lb/dall year001
Nickel, total recoverabledaily maximum≤ 75.925 lb/dall year001
Zinc, total recoverablemonthly averagereport only (ug/L)all year001
Zinc, total recoverabledaily maximumreport only (ug/L)all year001
Zinc, total recoverablemonthly average≤ 21.461 lb/dall year001
Zinc, total recoverabledaily maximum≤ 53.347 lb/dall year001
Lead, total recoverablemonthly averagereport only (ug/L)all year001
Lead, total recoverabledaily maximumreport only (ug/L)all year001
Lead, total recoverablemonthly average≤ 6.541 lb/dall year001
Lead, total recoverabledaily maximum≤ 14.103 lb/dall year001
Copper, total recoverablemonthly average≤ 637 ug/Lall year001
Copper, total recoverabledaily maximum≤ 637 ug/Lall year001
Copper, total recoverablemonthly average≤ 29.637 lb/dall year001
Copper, total recoverabledaily maximum≤ 69.085 lb/dall year001
Toxicitymaximum≤ 7.17 tox acuteall year001
Carbon tetrachloridemonthly averagereport only (ug/L)all year001
Carbon tetrachloridedaily maximumreport only (ug/L)all year001
Carbon tetrachloridemonthly average≤ 2.902 lb/dall year001
Carbon tetrachloridedaily maximum≤ 7.767 lb/dall year001
1,2-Dichloroethanemonthly averagereport only (ug/L)all year001
1,2-Dichloroethanedaily maximumreport only (ug/L)all year001
1,2-Dichloroethanemonthly average≤ 3.679 lb/dall year001
1,2-Dichloroethanedaily maximum≤ 11.732 lb/dall year001
Chloroformmonthly averagereport only (ug/L)all year001
Chloroformdaily maximumreport only (ug/L)all year001
Chloroformmonthly average≤ 2.269 lb/dall year001
Chloroformdaily maximum≤ 6.643 lb/dall year001
Toluenemonthly averagereport only (ug/L)all year001
Toluenedaily maximumreport only (ug/L)all year001
Toluenemonthly average≤ .572 lb/dall year001
Toluenedaily maximum≤ 1.513 lb/dall year001
Benzenemonthly averagereport only (ug/L)all year001
Benzenedaily maximumreport only (ug/L)all year001
Benzenemonthly average≤ 1.165 lb/dall year001
Benzenedaily maximum≤ 2.739 lb/dall year001
Acenaphthylenemonthly averagereport only (ug/L)all year001
Acenaphthylenedaily maximumreport only (ug/L)all year001
Acenaphthylenemonthly average≤ .362 lb/dall year001
Acenaphthylenedaily maximum≤ .897 lb/dall year001
Acenaphthenemonthly averagereport only (ug/L)all year001
Acenaphthenedaily maximumreport only (ug/L)all year001
Acenaphthenemonthly average≤ .362 lb/dall year001
Acenaphthenedaily maximum≤ .897 lb/dall year001
Acrylonitrilemonthly averagereport only (ug/L)all year001
Acrylonitriledaily maximumreport only (ug/L)all year001
Acrylonitrilemonthly average≤ 1.921 lb/dall year001
Acrylonitriledaily maximum≤ 4.742 lb/dall year001
Anthracenemonthly averagereport only (ug/L)all year001
Anthracenedaily maximumreport only (ug/L)all year001
Anthracenemonthly average≤ .362 lb/dall year001
Anthracenedaily maximum≤ .897 lb/dall year001
Benzo[k]fluoranthenemonthly averagereport only (ug/L)all year001
Benzo[k]fluoranthenedaily maximumreport only (ug/L)all year001
Benzo[k]fluoranthenemonthly average≤ .362 lb/dall year001
Benzo[k]fluoranthenedaily maximum≤ .897 lb/dall year001
Benzo[a]pyrenemonthly averagereport only (ug/L)all year001
Benzo[a]pyrenedaily maximumreport only (ug/L)all year001
Benzo[a]pyrenemonthly average≤ .382 lb/dall year001
Benzo[a]pyrenedaily maximum≤ .916 lb/dall year001
Chlorobenzenemonthly averagereport only (ug/L)all year001
Chlorobenzenedaily maximumreport only (ug/L)all year001
Chlorobenzenemonthly average≤ 2.902 lb/dall year001
Chlorobenzenedaily maximum≤ 7.767 lb/dall year001
Chrysenemonthly averagereport only (ug/L)all year001
Chrysenedaily maximumreport only (ug/L)all year001
Chrysenemonthly average≤ .362 lb/dall year001
Chrysenedaily maximum≤ .897 lb/dall year001
Diethyl phthalatemonthly averagereport only (ug/L)all year001
Diethyl phthalatedaily maximumreport only (ug/L)all year001
Diethyl phthalatemonthly average≤ .878 lb/dall year001
Diethyl phthalatedaily maximum≤ 2.156 lb/dall year001
Dimethyl phthalatemonthly averagereport only (ug/L)all year001
Dimethyl phthalatedaily maximumreport only (ug/L)all year001
Dimethyl phthalatemonthly average≤ .362 lb/dall year001
Dimethyl phthalatedaily maximum≤ .897 lb/dall year001
Fluoranthenemonthly averagereport only (ug/L)all year001
Fluoranthenedaily maximumreport only (ug/L)all year001
Fluoranthenemonthly average≤ .42 lb/dall year001
Fluoranthenedaily maximum≤ 1.03 lb/dall year001
Fluorenemonthly averagereport only (ug/L)all year001
Fluorenedaily maximumreport only (ug/L)all year001
Fluorenemonthly average≤ .362 lb/dall year001
Fluorenedaily maximum≤ .897 lb/dall year001
Hexachloroethanemonthly averagereport only (ug/L)all year001
Hexachloroethanedaily maximumreport only (ug/L)all year001
Hexachloroethanemonthly average≤ 4.006 lb/dall year001
Hexachloroethanedaily maximum≤ 16.229 lb/dall year001
Methyl chloride [Chloromethane]monthly averagereport only (ug/L)all year001
Methyl chloride [Chloromethane]daily maximumreport only (ug/L)all year001
Methyl chloride [Chloromethane]monthly average≤ 2.098 lb/dall year001
Methyl chloride [Chloromethane]daily maximum≤ 5.628 lb/dall year001
Methylene chloridemonthly averagereport only (ug/L)all year001
Methylene chloridedaily maximumreport only (ug/L)all year001
Methylene chloridemonthly average≤ .736 lb/dall year001
Methylene chloridedaily maximum≤ 3.475 lb/dall year001
Nitrobenzenemonthly averagereport only (ug/L)all year001
Nitrobenzenedaily maximumreport only (ug/L)all year001
Nitrobenzenemonthly average≤ 42.675 lb/dall year001
Nitrobenzenedaily maximum≤ 122.129 lb/dall year001
Phenanthrenemonthly averagereport only (ug/L)all year001
Phenanthrenedaily maximumreport only (ug/L)all year001
Phenanthrenemonthly average≤ .362 lb/dall year001
Phenanthrenedaily maximum≤ .897 lb/dall year001
Pyrenemonthly averagereport only (ug/L)all year001
Pyrenedaily maximumreport only (ug/L)all year001
Pyrenemonthly average≤ .382 lb/dall year001
Pyrenedaily maximum≤ .916 lb/dall year001
Tetrachloroethylenemonthly averagereport only (ug/L)all year001
Tetrachloroethylenedaily maximumreport only (ug/L)all year001
Tetrachloroethylenemonthly average≤ 1.063 lb/dall year001
Tetrachloroethylenedaily maximum≤ 3.352 lb/dall year001
1,1-Dichloroethanemonthly averagereport only (ug/L)all year001
1,1-Dichloroethanedaily maximumreport only (ug/L)all year001
1,1-Dichloroethanemonthly average≤ .42 lb/dall year001
1,1-Dichloroethanedaily maximum≤ 1.126 lb/dall year001
1,1-Dichloroethylenemonthly averagereport only (ug/L)all year001
1,1-Dichloroethylenedaily maximumreport only (ug/L)all year001
1,1-Dichloroethylenemonthly average≤ .45 lb/dall year001
1,1-Dichloroethylenedaily maximum≤ 1.226 lb/dall year001
1,1,1-Trichloroethanemonthly averagereport only (ug/L)all year001
1,1,1-Trichloroethanedaily maximumreport only (ug/L)all year001
1,1,1-Trichloroethanemonthly average≤ .45 lb/dall year001
1,1,1-Trichloroethanedaily maximum≤ 1.206 lb/dall year001
1,1,2-Trichloroethanemonthly averagereport only (ug/L)all year001
1,1,2-Trichloroethanedaily maximumreport only (ug/L)all year001
1,1,2-Trichloroethanemonthly average≤ .654 lb/dall year001
1,1,2-Trichloroethanedaily maximum≤ 2.596 lb/dall year001
Benzo[a]anthracenemonthly averagereport only (ug/L)all year001
Benzo[a]anthracenedaily maximumreport only (ug/L)all year001
Benzo[a]anthracenemonthly average≤ .362 lb/dall year001
Benzo[a]anthracenedaily maximum≤ .897 lb/dall year001
1,2-Dichlorobenzenemonthly averagereport only (ug/L)all year001
1,2-Dichlorobenzenedaily maximumreport only (ug/L)all year001
1,2-Dichlorobenzenemonthly average≤ 4.006 lb/dall year001
1,2-Dichlorobenzenedaily maximum≤ 16.229 lb/dall year001
1,2-Dichloropropanemonthly averagereport only (ug/L)all year001
1,2-Dichloropropanedaily maximumreport only (ug/L)all year001
1,2-Dichloropropanemonthly average≤ 3.739 lb/dall year001
1,2-Dichloropropanedaily maximum≤ 15.147 lb/dall year001
trans-1,2-Dichloroethylenemonthly averagereport only (ug/L)all year001
trans-1,2-Dichloroethylenedaily maximumreport only (ug/L)all year001
trans-1,2-Dichloroethylenemonthly average≤ .511 lb/dall year001
trans-1,2-Dichloroethylenedaily maximum≤ 1.349 lb/dall year001
1,2,4-Trichlorobenzenemonthly averagereport only (ug/L)all year001
1,2,4-Trichlorobenzenedaily maximumreport only (ug/L)all year001
1,2,4-Trichlorobenzenemonthly average≤ 4.006 lb/dall year001
1,2,4-Trichlorobenzenedaily maximum≤ 16.229 lb/dall year001
1,3-Dichlorobenzenemonthly averagereport only (ug/L)all year001
1,3-Dichlorobenzenedaily maximumreport only (ug/L)all year001
1,3-Dichlorobenzenemonthly average≤ 2.709 lb/dall year001
1,3-Dichlorobenzenedaily maximum≤ 7.249 lb/dall year001
1,4-Dichlorobenzenemonthly averagereport only (ug/L)all year001
1,4-Dichlorobenzenedaily maximumreport only (ug/L)all year001
1,4-Dichlorobenzenemonthly average≤ 2.709 lb/dall year001
1,4-Dichlorobenzenedaily maximum≤ 7.249 lb/dall year001
2-Nitrophenolmonthly averagereport only (ug/L)all year001
2-Nitrophenoldaily maximumreport only (ug/L)all year001
2-Nitrophenolmonthly average≤ 1.24 lb/dall year001
2-Nitrophenoldaily maximum≤ 4.407 lb/dall year001
2,4-Dimethylphenolmonthly averagereport only (ug/L)all year001
2,4-Dimethylphenoldaily maximumreport only (ug/L)all year001
2,4-Dimethylphenolmonthly average≤ .362 lb/dall year001
2,4-Dimethylphenoldaily maximum≤ .897 lb/dall year001
2,4-Dinitrophenolmonthly averagereport only (ug/L)all year001
2,4-Dinitrophenoldaily maximumreport only (ug/L)all year001
2,4-Dinitrophenolmonthly average≤ 23.026 lb/dall year001
2,4-Dinitrophenoldaily maximum≤ 81.858 lb/dall year001
4-Nitrophenolmonthly averagereport only (ug/L)all year001
4-Nitrophenoldaily maximumreport only (ug/L)all year001
4-Nitrophenolmonthly average≤ 3.09 lb/dall year001
4-Nitrophenoldaily maximum≤ 10.988 lb/dall year001
4,6-Dinitro-o-cresolmonthly averagereport only (ug/L)all year001
4,6-Dinitro-o-cresoldaily maximumreport only (ug/L)all year001
4,6-Dinitro-o-cresolmonthly average≤ 1.488 lb/dall year001
4,6-Dinitro-o-cresoldaily maximum≤ 5.284 lb/dall year001
Phenolmonthly averagereport only (ug/L)all year001
Phenoldaily maximumreport only (ug/L)all year001
Phenolmonthly average≤ .388 lb/dall year001
Phenoldaily maximum≤ .961 lb/dall year001
Naphthalenemonthly averagereport only (ug/L)all year001
Naphthalenedaily maximumreport only (ug/L)all year001
Naphthalenemonthly average≤ .362 lb/dall year001
Naphthalenedaily maximum≤ .897 lb/dall year001
Ethylbenzenemonthly averagereport only (ug/L)all year001
Ethylbenzenedaily maximumreport only (ug/L)all year001
Ethylbenzenemonthly average≤ 2.709 lb/dall year001
Ethylbenzenedaily maximum≤ 7.249 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]monthly averagereport only (ug/L)all year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (ug/L)all year001
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ 1.942 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 5.273 lb/dall year001
Di-n-butyl phthalatemonthly averagereport only (ug/L)all year001
Di-n-butyl phthalatedaily maximumreport only (ug/L)all year001
Di-n-butyl phthalatemonthly average≤ .409 lb/dall year001
Di-n-butyl phthalatedaily maximum≤ .879 lb/dall year001
Vinyl chloridemonthly averagereport only (ug/L)all year001
Vinyl chloridedaily maximumreport only (ug/L)all year001
Vinyl chloridemonthly average≤ 1.983 lb/dall year001
Vinyl chloridedaily maximum≤ 3.516 lb/dall year001
Trichloroethylenemonthly averagereport only (ug/L)all year001
Trichloroethylenedaily maximumreport only (ug/L)all year001
Trichloroethylenemonthly average≤ .531 lb/dall year001
Trichloroethylenedaily maximum≤ 1.41 lb/dall year001
.alpha.-BHCmonthly averagereport only (mg/L)all year001
.alpha.-BHCdaily maximumreport only (mg/L)all year001
.beta.-BHCmonthly averagereport only (mg/L)all year001
.beta.-BHCdaily maximumreport only (mg/L)all year001
Hexachlorobenzenemonthly averagereport only (ug/L)all year001
Hexachlorobenzenedaily maximumreport only (ug/L)all year001
Hexachlorobenzenemonthly average≤ 3.739 lb/dall year001
Hexachlorobenzenedaily maximum≤ 15.147 lb/dall year001
Hexachlorobutadienemonthly averagereport only (ug/L)all year001
Hexachlorobutadienedaily maximumreport only (ug/L)all year001
Hexachlorobutadienemonthly average≤ 2.902 lb/dall year001
Hexachlorobutadienedaily maximum≤ 7.767 lb/dall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
1,3-Dichloropropylenemonthly averagereport only (ug/L)all year001
1,3-Dichloropropylenedaily maximumreport only (ug/L)all year001
1,3-Dichloropropylenemonthly average≤ 3.739 lb/dall year001
1,3-Dichloropropylenedaily maximum≤ 15.147 lb/dall year001
Mercury, total recoverablemonthly averagereport only (mg/L)all year001
Mercury, total recoverabledaily maximumreport only (mg/L)all year001
Length of longest pH excursionmaximum≤ 60 minall year001
% of time exceeding pH limitsmaximum≤ 1 %all year001
3,4-Benzofluoranthenemonthly averagereport only (ug/L)all year001
3,4-Benzofluoranthenedaily maximumreport only (ug/L)all year001
3,4-Benzofluoranthenemonthly average≤ .382 lb/dall year001
3,4-Benzofluoranthenedaily maximum≤ .916 lb/dall year001
Chloroethanemonthly averagereport only (ug/L)all year001
Chloroethanedaily maximumreport only (ug/L)all year001
Chloroethanemonthly average≤ 2.098 lb/dall year001
Chloroethanedaily maximum≤ 5.628 lb/dall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year003
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/Lall year003
Solids, total suspendedmonthly average≤ 30 mg/Lall year003
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Chlorine, total residualminimum≥ .2 mg/Lall year003
.alpha.-BHCmonthly averagereport only (mg/L)all year004
.alpha.-BHCdaily maximumreport only (mg/L)all year004
.beta.-BHCmonthly averagereport only (mg/L)all year004
.beta.-BHCdaily maximumreport only (mg/L)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
pHminimum≥ 6 SUall yearSW01
pHmaximum≤ 9 SUall yearSW01
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSW01
Solids, total suspendeddaily maximum≤ 60 mg/Lall yearSW01
Oil & Greasemonthly average≤ 10 mg/Lall yearSW01
Oil & Greasedaily maximum≤ 15 mg/Lall yearSW01
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSW01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearSW01
pHminimum≥ 6 SUall yearSW05
pHmaximum≤ 9 SUall yearSW05
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSW05
Solids, total suspendeddaily maximum≤ 60 mg/Lall yearSW05
Oil & Greasemonthly average≤ 10 mg/Lall yearSW05
Oil & Greasedaily maximum≤ 15 mg/Lall yearSW05
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSW05
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearSW05

How strict are these limits?

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

Same industry: the 39 Chemicals and Allied Products permits in Kentucky.

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