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ISP Chemicals Inc

Industrial Organic Chemicals, major discharger, Calvert City, Kentucky. NPDES permit KY0003701, in force until Dec 31, 2026. Last 12 months: over a limit 2 times (last February 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form 1 monthly (18 values), outfall 001 form 2 quarterly (27 values), outfall 008 form 2 quarterly (8 values), outfall 001 form 4 yearly
Renewal application due
Jul 4, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 21 reports late

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

Period endingParameterReportedLimitOver by
October 2025Oil & Grease, daily maximum17.9 mg/L≤ 15 mg/L19%
February 2026BOD, 5-day, 20 deg. C, daily maximum1024 lb/d≤ 952 lb/d8%

Limits in force (277)

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 averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 361 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 952 lb/dall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Solids, total suspendedmonthly average≤ 455 lb/dall year001
Solids, total suspendeddaily maximum≤ 1445 lb/dall year001
Oil & Greasemonthly average≤ 10 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Cyanide, total [as CN]monthly averagereport only (mg/L)all year001
Cyanide, total [as CN]daily maximumreport only (mg/L)all year001
Cyanide, total [as CN]monthly average≤ 3.29 lb/dall year001
Cyanide, total [as CN]daily maximum≤ 9.39 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
Nickel, total recoverablemonthly average≤ 3360 ug/Lall year001
Nickel, total recoverabledaily maximum≤ 3360 ug/Lall year001
Nickel, total recoverablemonthly average≤ 13.23 lb/dall year001
Nickel, total recoverabledaily maximum≤ 31.16 lb/dall year001
Zinc, total recoverablemonthly average≤ 858 ug/Lall year001
Zinc, total recoverabledaily maximum≤ 858 ug/Lall year001
Zinc, total recoverablemonthly average≤ 8.22 lb/dall year001
Zinc, total recoverabledaily maximum≤ 20.43 lb/dall year001
Lead, total recoverablemonthly average≤ 609 ug/Lall year001
Lead, total recoverabledaily maximum≤ 609 ug/Lall year001
Lead, total recoverablemonthly average≤ 2.51 lb/dall year001
Lead, total recoverabledaily maximum≤ 5.4 lb/dall year001
Chromium, total recoverablemonthly averagereport only (ug/L)all year001
Chromium, total recoverabledaily maximumreport only (ug/L)all year001
Chromium, total recoverablemonthly average≤ 8.69 lb/dall year001
Chromium, total recoverabledaily maximum≤ 21.68 lb/dall year001
Copper, total recoverablemonthly average≤ 101 mg/Lall year001
Copper, total recoverabledaily maximum≤ 101 mg/Lall year001
Copper, total recoverablemonthly average≤ 11.35 lb/dall year001
Copper, total recoverabledaily maximum≤ 26.46 lb/dall year001
Carbon tetrachloridemonthly averagereport only (ug/L)all year001
Carbon tetrachloridedaily maximumreport only (ug/L)all year001
Carbon tetrachloridemonthly average≤ .14 lb/dall year001
Carbon tetrachloridedaily maximum≤ .3 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≤ .53 lb/dall year001
1,2-Dichloroethanedaily maximum≤ 1.65 lb/dall year001
Chloroformmonthly averagereport only (ug/L)all year001
Chloroformdaily maximumreport only (ug/L)all year001
Chloroformmonthly average≤ .16 lb/dall year001
Chloroformdaily maximum≤ .36 lb/dall year001
Toluenemonthly averagereport only (ug/L)all year001
Toluenedaily maximumreport only (ug/L)all year001
Toluenemonthly average≤ .2 lb/dall year001
Toluenedaily maximum≤ .63 lb/dall year001
Benzenemonthly averagereport only (ug/L)all year001
Benzenedaily maximumreport only (ug/L)all year001
Benzenemonthly average≤ .29 lb/dall year001
Benzenedaily maximum≤ 1.06 lb/dall year001
Acenaphthylenemonthly averagereport only (ug/L)all year001
Acenaphthylenedaily maximumreport only (ug/L)all year001
Acenaphthylenemonthly average≤ .17 lb/dall year001
Acenaphthylenedaily maximum≤ .46 lb/dall year001
Acenaphthenemonthly averagereport only (ug/L)all year001
Acenaphthenedaily maximumreport only (ug/L)all year001
Acenaphthenemonthly average≤ .17 lb/dall year001
Acenaphthenedaily maximum≤ .46 lb/dall year001
Acrylonitrilemonthly averagereport only (ug/L)all year001
Acrylonitriledaily maximumreport only (ug/L)all year001
Acrylonitrilemonthly average≤ .75 lb/dall year001
Acrylonitriledaily maximum≤ 1.89 lb/dall year001
Anthracenemonthly averagereport only (ug/L)all year001
Anthracenedaily maximumreport only (ug/L)all year001
Anthracenemonthly average≤ .17 lb/dall year001
Anthracenedaily maximum≤ .46 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≤ .17 lb/dall year001
Benzo[k]fluoranthenedaily maximum≤ .46 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≤ .18 lb/dall year001
Benzo[a]pyrenedaily maximum≤ .48 lb/dall year001
Chlorobenzenemonthly averagereport only (ug/L)all year001
Chlorobenzenedaily maximumreport only (ug/L)all year001
Chlorobenzenemonthly average≤ .12 lb/dall year001
Chlorobenzenedaily maximum≤ .22 lb/dall year001
Chrysenemonthly averagereport only (ug/L)all year001
Chrysenedaily maximumreport only (ug/L)all year001
Chrysenemonthly average≤ .17 lb/dall year001
Chrysenedaily maximum≤ .46 lb/dall year001
Diethyl phthalatemonthly averagereport only (ug/L)all year001
Diethyl phthalatedaily maximumreport only (ug/L)all year001
Diethyl phthalatemonthly average≤ .63 lb/dall year001
Diethyl phthalatedaily maximum≤ 1.59 lb/dall year001
Dimethyl phthalatemonthly averagereport only (ug/L)all year001
Dimethyl phthalatedaily maximumreport only (ug/L)all year001
Dimethyl phthalatemonthly average≤ .15 lb/dall year001
Dimethyl phthalatedaily maximum≤ .37 lb/dall year001
Ethylbenzenemonthly averagereport only (ug/L)all year001
Ethylbenzenedaily maximumreport only (ug/L)all year001
Ethylbenzenemonthly average≤ .25 lb/dall year001
Ethylbenzenedaily maximum≤ .85 lb/dall year001
Fluoranthenemonthly averagereport only (ug/L)all year001
Fluoranthenedaily maximumreport only (ug/L)all year001
Fluoranthenemonthly average≤ .2 lb/dall year001
Fluoranthenedaily maximum≤ .53 lb/dall year001
Fluorenemonthly averagereport only (ug/L)all year001
Fluorenedaily maximumreport only (ug/L)all year001
Fluorenemonthly average≤ .17 lb/dall year001
Fluorenedaily maximum≤ .46 lb/dall year001
Hexachloroethanemonthly averagereport only (ug/L)all year001
Hexachloroethanedaily maximumreport only (ug/L)all year001
Hexachloroethanemonthly average≤ .16 lb/dall year001
Hexachloroethanedaily maximum≤ .42 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≤ .67 lb/dall year001
Methyl chloride [Chloromethane]daily maximum≤ 1.49 lb/dall year001
Methylene chloridemonthly averagereport only (ug/L)all year001
Methylene chloridedaily maximumreport only (ug/L)all year001
Methylene chloridemonthly average≤ .31 lb/dall year001
Methylene chloridedaily maximum≤ .7 lb/dall year001
Nitrobenzenemonthly averagereport only (ug/L)all year001
Nitrobenzenedaily maximumreport only (ug/L)all year001
Nitrobenzenemonthly average≤ .21 lb/dall year001
Nitrobenzenedaily maximum≤ .53 lb/dall year001
Phenanthrenemonthly averagereport only (ug/L)all year001
Phenanthrenedaily maximumreport only (ug/L)all year001
Phenanthrenemonthly average≤ .17 lb/dall year001
Phenanthrenedaily maximum≤ .46 lb/dall year001
Pyrenemonthly averagereport only (ug/L)all year001
Pyrenedaily maximumreport only (ug/L)all year001
Pyrenemonthly average≤ .2 lb/dall year001
Pyrenedaily maximum≤ .52 lb/dall year001
Tetrachloroethylenemonthly averagereport only (ug/L)all year001
Tetrachloroethylenedaily maximumreport only (ug/L)all year001
Tetrachloroethylenemonthly average≤ .17 lb/dall year001
Tetrachloroethylenedaily maximum≤ .44 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≤ .17 lb/dall year001
1,1-Dichloroethanedaily maximum≤ .46 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≤ .13 lb/dall year001
1,1-Dichloroethylenedaily maximum≤ .2 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≤ .16 lb/dall year001
1,1,1-Trichloroethanedaily maximum≤ .42 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≤ .16 lb/dall year001
1,1,2-Trichloroethanedaily maximum≤ .42 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≤ .17 lb/dall year001
Benzo[a]anthracenedaily maximum≤ .46 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≤ .6 lb/dall year001
1,2-Dichlorobenzenedaily maximum≤ 1.28 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≤ 1.2 lb/dall year001
1,2-Dichloropropanedaily maximum≤ 1.8 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≤ .16 lb/dall year001
trans-1,2-Dichloroethylenedaily maximum≤ .42 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≤ .53 lb/dall year001
1,2,4-Trichlorobenzenedaily maximum≤ 1.1 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≤ .24 lb/dall year001
1,3-Dichlorobenzenedaily maximum≤ .34 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≤ .12 lb/dall year001
1,4-Dichlorobenzenedaily maximum≤ .22 lb/dall year001
2-Chlorophenolmonthly averagereport only (ug/L)all year001
2-Chlorophenoldaily maximumreport only (ug/L)all year001
2-Chlorophenolmonthly average≤ .24 lb/dall year001
2-Chlorophenoldaily maximum≤ .77 lb/dall year001
2-Nitrophenolmonthly averagereport only (ug/L)all year001
2-Nitrophenoldaily maximumreport only (ug/L)all year001
2-Nitrophenolmonthly average≤ .32 lb/dall year001
2-Nitrophenoldaily maximum≤ .54 lb/dall year001
2,4-Dichlorophenolmonthly averagereport only (ug/L)all year001
2,4-Dichlorophenoldaily maximumreport only (ug/L)all year001
2,4-Dichlorophenolmonthly average≤ .31 lb/dall year001
2,4-Dichlorophenoldaily maximum≤ .88 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≤ .14 lb/dall year001
2,4-Dimethylphenoldaily maximum≤ .28 lb/dall year001
2,4-Dinitrotoluenemonthly averagereport only (ug/L)all year001
2,4-Dinitrotoluenedaily maximumreport only (ug/L)all year001
2,4-Dinitrotoluenemonthly average≤ .8 lb/dall year001
2,4-Dinitrotoluenedaily maximum≤ 2.23 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≤ .56 lb/dall year001
2,4-Dinitrophenoldaily maximum≤ .96 lb/dall year001
2,6-Dinitrotoluenemonthly averagereport only (ug/L)all year001
2,6-Dinitrotoluenedaily maximumreport only (ug/L)all year001
2,6-Dinitrotoluenemonthly average≤ 2 lb/dall year001
2,6-Dinitrotoluenedaily maximum≤ 5.02 lb/dall year001
4-Nitrophenolmonthly averagereport only (ug/L)all year001
4-Nitrophenoldaily maximumreport only (ug/L)all year001
4-Nitrophenolmonthly average≤ .56 lb/dall year001
4-Nitrophenoldaily maximum≤ .97 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≤ .61 lb/dall year001
4,6-Dinitro-o-cresoldaily maximum≤ 2.17 lb/dall year001
Phenolmonthly averagereport only (ug/L)all year001
Phenoldaily maximumreport only (ug/L)all year001
Phenolmonthly average≤ .12 lb/dall year001
Phenoldaily maximum≤ .2 lb/dall year001
Naphthalenemonthly averagereport only (ug/L)all year001
Naphthalenedaily maximumreport only (ug/L)all year001
Naphthalenemonthly average≤ .17 lb/dall year001
Naphthalenedaily maximum≤ .46 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≤ .81 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 2.18 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≤ .21 lb/dall year001
Di-n-butyl phthalatedaily maximum≤ .45 lb/dall year001
Vinyl chloridemonthly averagereport only (ug/L)all year001
Vinyl chloridedaily maximumreport only (ug/L)all year001
Vinyl chloridemonthly average≤ .81 lb/dall year001
Vinyl chloridedaily maximum≤ 2.1 lb/dall year001
Trichloroethylenemonthly averagereport only (ug/L)all year001
Trichloroethylenedaily maximumreport only (ug/L)all year001
Trichloroethylenemonthly average≤ .16 lb/dall year001
Trichloroethylenedaily maximum≤ .42 lb/dall year001
Hexachlorobenzenemonthly averagereport only (ug/L)all year001
Hexachlorobenzenedaily maximumreport only (ug/L)all year001
Hexachlorobenzenemonthly average≤ .12 lb/dall year001
Hexachlorobenzenedaily maximum≤ .22 lb/dall year001
Hexachlorobutadienemonthly averagereport only (ug/L)all year001
Hexachlorobutadienedaily maximumreport only (ug/L)all year001
Hexachlorobutadienemonthly average≤ .16 lb/dall year001
Hexachlorobutadienedaily maximum≤ .38 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
Chlorine, total residualmonthly averagereport only (mg/L)all year001
Chlorine, total residualdaily maximumreport only (mg/L)all year001
1,3-Dichloropropylenemonthly averagereport only (ug/L)all year001
1,3-Dichloropropylenedaily maximumreport only (ug/L)all year001
1,3-Dichloropropylenemonthly average≤ .23 lb/dall year001
1,3-Dichloropropylenedaily maximum≤ .34 lb/dall year001
Toxicity, final conc toxicity unitsmaximum≤ 1.98 tox acuteall year001
3,4-Benzofluoranthenemonthly averagereport only (ug/L)all year001
3,4-Benzofluoranthenedaily maximumreport only (ug/L)all year001
3,4-Benzofluoranthenemonthly average≤ .18 lb/dall year001
3,4-Benzofluoranthenedaily maximum≤ .48 lb/dall year001
Chloroethanemonthly averagereport only (ug/L)all year001
Chloroethanedaily maximumreport only (ug/L)all year001
Chloroethanemonthly average≤ .81 lb/dall year001
Chloroethanedaily maximum≤ 2.1 lb/dall year001
pHminimum≥ 6 SUall year008
pHmaximum≤ 9 SUall year008
Solids, total suspendedmonthly averagereport only (mg/L)all year008
Solids, total suspendeddaily maximumreport only (mg/L)all year008
Oil & Greasemonthly averagereport only (mg/L)all year008
Oil & Greasedaily maximumreport only (mg/L)all year008
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year008
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year008

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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Your permit document is the final word. As JSON: /api/v1/permits/KY0003701 · MCP: https://passage-data.com/mcp