Westlake Vinyls Inc

NPDES permit KY0003484 · Major NON-POTW · effective, expires 2029-03-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 54 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among KY permits in EPA's filings — check your permit).

Limits in force (276)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO AVG report only all year
001Temperature, water deg. fahrenheitDAILY MX <= 110 deg F all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Oil & GreaseMO AVG <= 10 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Hardness, total [as CaCO3]MO AVG report only all year
001Hardness, total [as CaCO3]DAILY MX report only all year
001Chloride [as Cl]MO AVG <= 16320 mg/L all year
001Chloride [as Cl]DAILY MX <= 16320 mg/L all year
001Iron, total recoverableMO AVG <= 54.4 mg/L all year
001Iron, total recoverableDAILY MX <= 54.4 mg/L all year
001Copper, total recoverableMO AVG <= .194 mg/L all year
001Copper, total recoverableDAILY MX <= .194 mg/L all year
0011,2-DichloroethaneMO AVG report only all year
0011,2-DichloroethaneDAILY MX report only all year
001HexachlorobenzeneMO AVG <= .115 ug/L all year
001HexachlorobenzeneDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMO AVG <= .258 mg/L all year
001Chlorine, total residualDAILY MX <= .258 mg/L all year
001Toxicity, final conc toxicity unitsDAILY MX <= 3.78 tox acute all year
002BOD, 5-day, 20 deg. CMO AVG <= 183 lb/d all year
002BOD, 5-day, 20 deg. CDAILY MX <= 448 lb/d all year
002Solids, total suspendedMO AVG <= 244 lb/d all year
002Solids, total suspendedDAILY MX <= 729 lb/d all year
002Cyanide, total [as CN]MO AVG <= 1.763 lb/d all year
002Cyanide, total [as CN]DAILY MX <= 5.038 lb/d all year
002Chromium, total [as Cr]MO AVG <= 4.66 lb/d all year
002Chromium, total [as Cr]DAILY MX <= 11.629 lb/d all year
002Copper, total [as Cu]MO AVG <= 6.088 lb/d all year
002Copper, total [as Cu]DAILY MX <= 14.19 lb/d all year
002Lead, total [as Pb]MO AVG <= 1.343 lb/d all year
002Lead, total [as Pb]DAILY MX <= 2.897 lb/d all year
002Nickel, total [as Ni]MO AVG <= 7.095 lb/d all year
002Nickel, total [as Ni]DAILY MX <= 16.71 lb/d all year
002Zinc, total [as Zn]MO AVG <= 4.408 lb/d all year
002Zinc, total [as Zn]DAILY MX <= 10.958 lb/d all year
002Carbon tetrachlorideMO AVG <= .076 lb/d all year
002Carbon tetrachlorideDAILY MX <= .16 lb/d all year
0021,2-DichloroethaneMO AVG <= .285 lb/d all year
0021,2-DichloroethaneDAILY MX <= .886 lb/d all year
002ChloroformMO AVG <= .088 lb/d all year
002ChloroformDAILY MX <= .193 lb/d all year
002TolueneMO AVG <= .109 lb/d all year
002TolueneDAILY MX <= .336 lb/d all year
002BenzeneMO AVG <= .155 lb/d all year
002BenzeneDAILY MX <= .571 lb/d all year
002AcenaphthyleneMO AVG <= .092 lb/d all year
002AcenaphthyleneDAILY MX <= .248 lb/d all year
002AcenaphtheneMO AVG <= .092 lb/d all year
002AcenaphtheneDAILY MX <= .248 lb/d all year
002AcrylonitrileMO AVG <= .403 lb/d all year
002AcrylonitrileDAILY MX <= 1.016 lb/d all year
002AnthraceneMO AVG <= .092 lb/d all year
002AnthraceneDAILY MX <= .248 lb/d all year
002Benzo[k]fluorantheneMO AVG <= .092 lb/d all year
002Benzo[k]fluorantheneDAILY MX <= .248 lb/d all year
002Benzo[a]pyreneMO AVG <= .097 lb/d all year
002Benzo[a]pyreneDAILY MX <= .256 lb/d all year
002ChlorobenzeneMO AVG <= .063 lb/d all year
002ChlorobenzeneDAILY MX <= .118 lb/d all year
002ChryseneMO AVG <= .092 lb/d all year
002ChryseneDAILY MX <= .248 lb/d all year
002Diethyl phthalateMO AVG <= .34 lb/d all year
002Diethyl phthalateDAILY MX <= .852 lb/d all year
002Dimethyl phthalateMO AVG <= .08 lb/d all year
002Dimethyl phthalateDAILY MX <= .197 lb/d all year
002EthylbenzeneMO AVG <= .134 lb/d all year
002EthylbenzeneDAILY MX <= .453 lb/d all year
002FluorantheneMO AVG <= .105 lb/d all year
002FluorantheneDAILY MX <= .285 lb/d all year
002FluoreneMO AVG <= .092 lb/d all year
002FluoreneDAILY MX <= .248 lb/d all year
002HexachloroethaneMO AVG <= .088 lb/d all year
002HexachloroethaneDAILY MX <= .227 lb/d all year
002Methyl chloride [Chloromethane]MO AVG <= .361 lb/d all year
002Methyl chloride [Chloromethane]DAILY MX <= .798 lb/d all year
002Methylene chlorideMO AVG <= .168 lb/d all year
002Methylene chlorideDAILY MX <= .374 lb/d all year
002NitrobenzeneMO AVG <= .113 lb/d all year
002NitrobenzeneDAILY MX <= .285 lb/d all year
002PhenanthreneMO AVG <= .092 lb/d all year
002PhenanthreneDAILY MX <= .248 lb/d all year
002PyreneMO AVG <= .105 lb/d all year
002PyreneDAILY MX <= .281 lb/d all year
002TetrachloroethyleneMO AVG <= .092 lb/d all year
002TetrachloroethyleneDAILY MX <= .235 lb/d all year
0021,1-DichloroethaneMO AVG <= .092 lb/d all year
0021,1-DichloroethaneDAILY MX <= .248 lb/d all year
0021,1-DichloroethyleneMO AVG <= .067 lb/d all year
0021,1-DichloroethyleneDAILY MX <= .105 lb/d all year
0021,1,1-TrichloroethaneMO AVG <= .088 lb/d all year
0021,1,1-TrichloroethaneDAILY MX <= .227 lb/d all year
0021,1,2-TrichloroethaneMO AVG <= .088 lb/d all year
0021,1,2-TrichloroethaneDAILY MX <= .227 lb/d all year
002Benzo[a]anthraceneMO AVG <= .092 lb/d all year
002Benzo[a]anthraceneDAILY MX <= .248 lb/d all year
0021,2-DichlorobenzeneMO AVG <= .323 lb/d all year
0021,2-DichlorobenzeneDAILY MX <= .684 lb/d all year
0021,2-DichloropropaneMO AVG <= .642 lb/d all year
0021,2-DichloropropaneDAILY MX <= .966 lb/d all year
002trans-1,2-DichloroethyleneMO AVG <= .088 lb/d all year
002trans-1,2-DichloroethyleneDAILY MX <= .227 lb/d all year
0021,2,4-TrichlorobenzeneMO AVG <= .285 lb/d all year
0021,2,4-TrichlorobenzeneDAILY MX <= .588 lb/d all year
0021,3-DichlorobenzeneMO AVG <= .13 lb/d all year
0021,3-DichlorobenzeneDAILY MX <= .185 lb/d all year
0021,4-DichlorobenzeneMO AVG <= .063 lb/d all year
0021,4-DichlorobenzeneDAILY MX <= .118 lb/d all year
0022-ChlorophenolMO AVG <= .13 lb/d all year
0022-ChlorophenolDAILY MX <= .411 lb/d all year
0022-NitrophenolMO AVG <= .172 lb/d all year
0022-NitrophenolDAILY MX <= .29 lb/d all year
0022,4-DichlorophenolMO AVG <= .164 lb/d all year
0022,4-DichlorophenolDAILY MX <= .47 lb/d all year
0022,4-DimethylphenolMO AVG <= .076 lb/d all year
0022,4-DimethylphenolDAILY MX <= .151 lb/d all year
0022,4-DinitrotolueneMO AVG <= .474 lb/d all year
0022,4-DinitrotolueneDAILY MX <= 1.197 lb/d all year
0022,4-DinitrophenolMO AVG <= .298 lb/d all year
0022,4-DinitrophenolDAILY MX <= .516 lb/d all year
0022,6-DinitrotolueneMO AVG <= 1.071 lb/d all year
0022,6-DinitrotolueneDAILY MX <= 2.691 lb/d all year
0024-NitrophenolMO AVG <= .302 lb/d all year
0024-NitrophenolDAILY MX <= .521 lb/d all year
0024,6-Dinitro-o-cresolMO AVG <= .327 lb/d all year
0024,6-Dinitro-o-cresolDAILY MX <= 1.163 lb/d all year
002PhenolMO AVG <= .063 lb/d all year
002PhenolDAILY MX <= .109 lb/d all year
002NaphthaleneMO AVG <= .092 lb/d all year
002NaphthaleneDAILY MX <= .248 lb/d all year
002Di-n-butyl phthalateMO AVG <= .113 lb/d all year
002Di-n-butyl phthalateDAILY MX <= .239 lb/d all year
002Vinyl chlorideMO AVG <= .437 lb/d all year
002Vinyl chlorideDAILY MX <= 1.125 lb/d all year
002TrichloroethyleneMO AVG <= .088 lb/d all year
002TrichloroethyleneDAILY MX <= .227 lb/d all year
002HexachlorobenzeneMO AVG <= .063 lb/d all year
002HexachlorobenzeneDAILY MX <= .118 lb/d all year
002HexachlorobutadieneMO AVG <= .084 lb/d all year
002HexachlorobutadieneDAILY MX <= .206 lb/d all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
0021,3-DichloropropyleneMO AVG <= .122 lb/d all year
0021,3-DichloropropyleneDAILY MX <= .185 lb/d all year
0023,4-BenzofluorantheneMO AVG <= .097 lb/d all year
0023,4-BenzofluorantheneDAILY MX <= .256 lb/d all year
002ChloroethaneMO AVG <= .437 lb/d all year
002ChloroethaneDAILY MX <= 1.125 lb/d all year
009BOD, 5-day, 20 deg. CMO AVG <= 379 lb/d all year
009BOD, 5-day, 20 deg. CDAILY MX <= 1009 lb/d all year
009Solids, total suspendedMO AVG <= 580 lb/d all year
009Solids, total suspendedDAILY MX <= 1880 lb/d all year
009Cyanide, total [as CN]MO AVG <= 5.299 lb/d all year
009Cyanide, total [as CN]DAILY MX <= 15.141 lb/d all year
009Chromium, total [as Cr]MO AVG <= 14.006 lb/d all year
009Chromium, total [as Cr]DAILY MX <= 34.951 lb/d all year
009Copper, total [as Cu]MO AVG <= 18.296 lb/d all year
009Copper, total [as Cu]DAILY MX <= 42.648 lb/d all year
009Lead, total [as Pb]MO AVG <= 4.038 lb/d all year
009Lead, total [as Pb]DAILY MX <= 8.706 lb/d all year
009Nickel, total [as Ni]MO AVG <= 21.324 lb/d all year
009Nickel, total [as Ni]DAILY MX <= 50.218 lb/d all year
009Zinc, total [as Zn]MO AVG <= 13.249 lb/d all year
009Zinc, total [as Zn]DAILY MX <= 32.932 lb/d all year
009Carbon tetrachlorideMO AVG <= 1.792 lb/d all year
009Carbon tetrachlorideDAILY MX <= 4.795 lb/d all year
0091,2-DichloroethaneMO AVG <= 2.271 lb/d all year
0091,2-DichloroethaneDAILY MX <= 7.243 lb/d all year
009ChloroformMO AVG <= 1.401 lb/d all year
009ChloroformDAILY MX <= 4.101 lb/d all year
009TolueneMO AVG <= .353 lb/d all year
009TolueneDAILY MX <= .934 lb/d all year
009BenzeneMO AVG <= .719 lb/d all year
009BenzeneDAILY MX <= 1.691 lb/d all year
009AcenaphthyleneMO AVG <= .24 lb/d all year
009AcenaphthyleneDAILY MX <= .593 lb/d all year
009AcenaphtheneMO AVG <= .24 lb/d all year
009AcenaphtheneDAILY MX <= .593 lb/d all year
009AcrylonitrileMO AVG <= 1.186 lb/d all year
009AcrylonitrileDAILY MX <= 2.927 lb/d all year
009AnthraceneMO AVG <= .24 lb/d all year
009AnthraceneDAILY MX <= .593 lb/d all year
009Benzo[k]fluorantheneMO AVG <= .24 lb/d all year
009Benzo[k]fluorantheneDAILY MX <= .593 lb/d all year
009Benzo[a]pyreneMO AVG <= .252 lb/d all year
009Benzo[a]pyreneDAILY MX <= .606 lb/d all year
009ChlorobenzeneMO AVG <= 1.792 lb/d all year
009ChlorobenzeneDAILY MX <= 4.795 lb/d all year
009ChryseneMO AVG <= .24 lb/d all year
009ChryseneDAILY MX <= .593 lb/d all year
009Diethyl phthalateMO AVG <= .58 lb/d all year
009Diethyl phthalateDAILY MX <= 1.426 lb/d all year
009Dimethyl phthalateMO AVG <= .24 lb/d all year
009Dimethyl phthalateDAILY MX <= .593 lb/d all year
009EthylbenzeneMO AVG <= 1.792 lb/d all year
009EthylbenzeneDAILY MX <= 4.795 lb/d all year
009FluorantheneMO AVG <= .278 lb/d all year
009FluorantheneDAILY MX <= .681 lb/d all year
009FluoreneMO AVG <= .24 lb/d all year
009FluoreneDAILY MX <= .593 lb/d all year
009HexachloroethaneMO AVG <= 2.473 lb/d all year
009HexachloroethaneDAILY MX <= 10.018 lb/d all year
009Methyl chloride [Chloromethane]MO AVG <= 1.388 lb/d all year
009Methyl chloride [Chloromethane]DAILY MX <= 3.722 lb/d all year
009Methylene chlorideMO AVG <= .454 lb/d all year
009Methylene chlorideDAILY MX <= 2.145 lb/d all year
009NitrobenzeneMO AVG <= 28.226 lb/d all year
009NitrobenzeneDAILY MX <= 80.778 lb/d all year
009PhenanthreneMO AVG <= .24 lb/d all year
009PhenanthreneDAILY MX <= .593 lb/d all year
009PyreneMO AVG <= .252 lb/d all year
009PyreneDAILY MX <= .606 lb/d all year
009TetrachloroethyleneMO AVG <= .656 lb/d all year
009TetrachloroethyleneDAILY MX <= 2.069 lb/d all year
0091,1-DichloroethaneMO AVG <= .278 lb/d all year
0091,1-DichloroethaneDAILY MX <= .744 lb/d all year
0091,1-DichloroethyleneMO AVG <= .278 lb/d all year
0091,1-DichloroethyleneDAILY MX <= .757 lb/d all year
0091,1,1-TrichloroethaneMO AVG <= .278 lb/d all year
0091,1,1-TrichloroethaneDAILY MX <= .744 lb/d all year
0091,1,2-TrichloroethaneMO AVG <= .404 lb/d all year
0091,1,2-TrichloroethaneDAILY MX <= 1.602 lb/d all year
009Benzo[a]anthraceneMO AVG <= .24 lb/d all year
009Benzo[a]anthraceneDAILY MX <= .593 lb/d all year
0091,2-DichlorobenzeneMO AVG <= 2.473 lb/d all year
0091,2-DichlorobenzeneDAILY MX <= 10.018 lb/d all year
0091,2-DichloropropaneMO AVG <= 2.473 lb/d all year
0091,2-DichloropropaneDAILY MX <= 10.018 lb/d all year
009trans-1,2-DichloroethyleneMO AVG <= .315 lb/d all year
009trans-1,2-DichloroethyleneDAILY MX <= .833 lb/d all year
0091,2,4-TrichlorobenzeneMO AVG <= 2.473 lb/d all year
0091,2,4-TrichlorobenzeneDAILY MX <= 10.018 lb/d all year
0091,3-DichlorobenzeneMO AVG <= 1.792 lb/d all year
0091,3-DichlorobenzeneDAILY MX <= 4.795 lb/d all year
0091,4-DichlorobenzeneMO AVG <= 1.792 lb/d all year
0091,4-DichlorobenzeneDAILY MX <= 4.795 lb/d all year
0092-NitrophenolMO AVG <= .82 lb/d all year
0092-NitrophenolDAILY MX <= 2.915 lb/d all year
0092,4-DimethylphenolMO AVG <= .24 lb/d all year
0092,4-DimethylphenolDAILY MX <= .593 lb/d all year
0092,4-DinitrophenolMO AVG <= 15.229 lb/d all year
0092,4-DinitrophenolDAILY MX <= 54.142 lb/d all year
0094-NitrophenolMO AVG <= 2.044 lb/d all year
0094-NitrophenolDAILY MX <= 7.268 lb/d all year
0094,6-Dinitro-o-cresolMO AVG <= .984 lb/d all year
0094,6-Dinitro-o-cresolDAILY MX <= 3.495 lb/d all year
009PhenolMO AVG <= .24 lb/d all year
009PhenolDAILY MX <= .593 lb/d all year
009NaphthaleneMO AVG <= .24 lb/d all year
009NaphthaleneDAILY MX <= .593 lb/d all year
009Di[2-ethylhexyl] phthalate [DEHP]MO AVG <= 1.199 lb/d all year
009Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= 3.255 lb/d all year
009Di-n-butyl phthalateMO AVG <= .252 lb/d all year
009Di-n-butyl phthalateDAILY MX <= .543 lb/d all year
009Vinyl chlorideMO AVG <= 1.224 lb/d all year
009Vinyl chlorideDAILY MX <= 2.17 lb/d all year
009TrichloroethyleneMO AVG <= .328 lb/d all year
009TrichloroethyleneDAILY MX <= .871 lb/d all year
009HexachlorobenzeneMO AVG <= 2.473 lb/d all year
009HexachlorobenzeneDAILY MX <= 10.018 lb/d all year
009HexachlorobutadieneMO AVG <= 1.792 lb/d all year
009HexachlorobutadieneDAILY MX <= 4.795 lb/d all year
009Flow, in conduit or thru treatment plantMO AVG report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
0091,3-DichloropropyleneMO AVG <= 2.473 lb/d all year
0091,3-DichloropropyleneDAILY MX <= 10.018 lb/d all year
0093,4-BenzofluorantheneMO AVG <= .252 lb/d all year
0093,4-BenzofluorantheneDAILY MX <= .606 lb/d all year
009ChloroethaneMO AVG <= 1.388 lb/d all year
009ChloroethaneDAILY MX <= 3.722 lb/d all year
010Flow, in conduit or thru treatment plantMO AVG report only all year
010Flow, in conduit or thru treatment plantDAILY MX report only all year
010Cooling Water Intake InspectionMAXIMUM report only all year

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