USS-POSCO Indiustries

NPDES permit CA0005002 · Major NON-POTW · expired, expires 2021-12-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2021-12-31 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
1required values missing, on 1 form(s)
0of 17 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 32 days after each monitoring period ends (the most common figure among CA permits in EPA's filings — check your permit).

Limits in force (207)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitINST MAX <= 92 deg F all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001Solids, total suspendedMO AVG <= 31 mg/L all year
001Solids, total suspendedDAILY MX <= 60 mg/L all year
001Solids, total suspendedMO AVG <= 1100 lb/d all year
001Solids, total suspendedDAILY MX <= 2600 lb/d all year
001Cyanide, total [as CN]MO AVG <= 6.8 ug/L all year
001Cyanide, total [as CN]MO AVG <= 6.8 ug/L all year
001Cyanide, total [as CN]DAILY MX <= 14 ug/L all year
001Cyanide, total [as CN]DAILY MX <= 14 ug/L all year
001AsbestosDAILY MX report only all year
001Arsenic, total recoverableDAILY MX report only all year
001Selenium, total recoverableDAILY MX report only all year
001Thallium, total recoverableDAILY MX report only all year
001Beryllium, total recoverable [as Be]DAILY MX report only all year
001Chromium, hexavalent [as Cr]DAILY MX report only all year
001Chromium, trivalent [as Cr]DAILY MX report only all year
001Nickel, total recoverableMO AVG <= 7.3 ug/L all year
001Nickel, total recoverableDAILY MX <= 12 ug/L all year
001Silver total recoverableMO AVG <= 240 ug/L all year
001Silver total recoverableDAILY MX <= 430 ug/L all year
001Zinc, total recoverableMO AVG <= 1500 ug/L all year
001Zinc, total recoverableDAILY MX <= 2600 ug/L all year
001Zinc, total recoverableMO AVG <= 4.6 lb/d all year
001Zinc, total recoverableDAILY MX <= 14 lb/d all year
001Cadmium, total recoverableMO AVG <= 260 ug/L all year
001Cadmium, total recoverableDAILY MX <= 690 ug/L all year
001Lead, total recoverableMO AVG <= 430 ug/L all year
001Lead, total recoverableDAILY MX <= 690 ug/L all year
001Lead, total recoverableMO AVG <= 3.9 lb/d all year
001Lead, total recoverableDAILY MX <= 12 lb/d all year
001Chromium, total recoverableMO AVG <= 1700 ug/L all year
001Chromium, total recoverableDAILY MX <= 2800 ug/L all year
001Copper, total recoverableMO AVG <= 3.3 ug/L all year
001Copper, total recoverableDAILY MX <= 5.5 ug/L all year
001Copper, total recoverableDAILY MX report only all year
001Antimony, total recoverableDAILY MX report only all year
001Oil and greaseMO AVG <= 10 mg/L all year
001Oil and greaseMO AVG <= 10 mg/L all year
001Oil and greaseDAILY MX <= 20 mg/L all year
001Oil and greaseDAILY MX <= 20 mg/L all year
001Oil and greaseMO AVG <= 250 lb/d all year
001Oil and greaseMO AVG <= 250 lb/d all year
001Oil and greaseDAILY MX <= 720 lb/d all year
001Oil and greaseDAILY MX <= 720 lb/d all year
0012-Methyl-4,6-dinitrophenolDAILY MX report only all year
0011,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxinDAILY MX report only all year
0011,2,3,7,8-Pentachlorodibenzo-p-dioxinDAILY MX report only all year
0011,2,3,4,7,8-Hexachlorodibenzo-p-dioxinDAILY MX report only all year
0011,2,3,6,7,8-Hexachlorodibenzo-p-dioxinDAILY MX report only all year
0011,2,3,7,8,9-Hexachlorodibenzo-p-dioxinDAILY MX report only all year
0011,2,3,7,8-PentachlorodibenzofuranDAILY MX report only all year
0012,3,4,7,8-PentachlorodibenzofuranDAILY MX report only all year
0011,2,3,4,7,8-HexachlorodibenzofuranDAILY MX report only all year
0011,2,3,6,7,8-HexachlorodibenzofuranDAILY MX report only all year
0011,2,3,7,8,9-HexachlorodibenzofuranDAILY MX report only all year
0012,3,4,6,7,8-HexachlorodibenzofuranDAILY MX report only all year
0011,2,3,4,6,7,8-HeptachlorodibenzofuranDAILY MX report only all year
0011,2,3,4,7,8,9-HeptachlorodibenzofuranDAILY MX report only all year
0011,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxinDAILY MX report only all year
001DichlorobromomethaneDAILY MX report only all year
001Carbon tetrachlorideMO AVG <= .25 ug/L all year
001Carbon tetrachlorideDAILY MX <= .5 ug/L all year
0011,2-DichloroethaneDAILY MX report only all year
001BromoformDAILY MX report only all year
001DibromochloromethaneDAILY MX report only all year
001ChloroformDAILY MX report only all year
001TolueneDAILY MX report only all year
001BenzeneDAILY MX report only all year
001.delta.-BHCDAILY MX report only all year
001AcenaphthyleneDAILY MX report only all year
001AcenaphtheneDAILY MX report only all year
001AcroleinDAILY MX report only all year
001AcrylonitrileDAILY MX report only all year
001AnthraceneDAILY MX report only all year
001Benzo[b]fluorantheneDAILY MX report only all year
001Benzo[k]fluorantheneDAILY MX report only all year
001Benzo[a]pyreneDAILY MX report only all year
001Bis[2-chloroethyl] etherDAILY MX report only all year
001Bis[2-chloroethoxy]methaneDAILY MX report only all year
001Bis[2-chloroisopropyl] etherDAILY MX report only all year
001Butyl benzyl phthalateDAILY MX report only all year
001ChlorobenzeneDAILY MX report only all year
001ChryseneDAILY MX report only all year
001Diethyl phthalateDAILY MX report only all year
001Dimethyl phthalateDAILY MX report only all year
0011,2-DiphenylhydrazineDAILY MX report only all year
001Endosulfan sulfateDAILY MX report only all year
001.beta.-EndosulfanDAILY MX report only all year
001.alpha.-EndosulfanDAILY MX report only all year
001Endrin aldehydeDAILY MX report only all year
001EthylbenzeneDAILY MX report only all year
001FluorantheneDAILY MX report only all year
001FluoreneDAILY MX report only all year
001HexachlorocyclopentadieneDAILY MX report only all year
001HexachlorobutadieneDAILY MX report only all year
001HexachloroethaneDAILY MX report only all year
001Indeno[1,2,3-cd]pyreneDAILY MX report only all year
001IsophoroneDAILY MX report only all year
001Methyl bromide [Bromomethane]DAILY MX report only all year
001Methyl chloride [Chloromethane]DAILY MX report only all year
001Methylene chlorideDAILY MX report only all year
001N-Nitrosodi-N-propylamineDAILY MX report only all year
001N-NitrosodiphenylamineDAILY MX report only all year
001N-Nitrosodimethylamine [NDMA]DAILY MX report only all year
001NitrobenzeneDAILY MX report only all year
001PhenanthreneDAILY MX report only all year
001PyreneDAILY MX report only all year
001TetrachloroethyleneDAILY MX report only all year
001TetrachloroethyleneDAILY MX <= 1 lb/d all year
0011,1-DichloroethaneDAILY MX report only all year
0011,1-DichloroethyleneDAILY MX report only all year
0011,1,1-TrichloroethaneDAILY MX report only all year
0011,1,2-TrichloroethaneDAILY MX report only all year
0011,1,2,2-TetrachloroethaneDAILY MX report only all year
001Benzo[ghi]peryleneDAILY MX report only all year
001Benzo[a]anthraceneDAILY MX report only all year
0011,2-DichlorobenzeneDAILY MX report only all year
0011,2-DichloropropaneDAILY MX report only all year
001trans-1,2-DichloroethyleneDAILY MX report only all year
0011,2,4-TrichlorobenzeneDAILY MX report only all year
001Dibenz[a,h]anthraceneDAILY MX report only all year
0011,3-DichlorobenzeneDAILY MX report only all year
0011,4-DichlorobenzeneDAILY MX report only all year
0012-Chloroethyl vinyl ether, [mixed]DAILY MX report only all year
0012-ChloronaphthaleneDAILY MX report only all year
0012-ChlorophenolDAILY MX report only all year
0012-NitrophenolDAILY MX report only all year
001Di-n-octyl phthalateDAILY MX report only all year
0012,4-DichlorophenolDAILY MX report only all year
0012,4-DimethylphenolDAILY MX report only all year
0012,4-DinitrotolueneDAILY MX report only all year
0012,4-DinitrophenolDAILY MX report only all year
0012,4,6-TrichlorophenolDAILY MX report only all year
0012,6-DinitrotolueneDAILY MX report only all year
0013,3'-DichlorobenzidineMO AVG <= .04 ug/L all year
0013,3'-DichlorobenzidineDAILY MX <= .08 ug/L all year
0014-Bromophenyl phenyl etherDAILY MX report only all year
0014-Chlorophenyl phenyl etherDAILY MX report only all year
0014-NitrophenolDAILY MX report only all year
001PCB-1016DAILY MX report only all year
0012,3,7,8-Tetrachlorodibenzo-p-dioxinDAILY MX report only all year
001PhenolDAILY MX report only all year
001NaphthaleneDAILY MX report only all year
001NaphthaleneDAILY MX <= .68 lb/d all year
0012,3,7,8-TetrachlorodibenzofuranDAILY MX report only all year
001PentachlorophenolMO AVG <= .28 ug/L all year
001PentachlorophenolDAILY MX <= .56 ug/L all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY MX report only all year
001Di-n-butyl phthalateDAILY MX report only all year
001BenzidineDAILY MX report only all year
001Vinyl chlorideDAILY MX report only all year
001TrichloroethyleneDAILY MX report only all year
0014,4'-DDTDAILY MX report only all year
0014,4'-DDDDAILY MX report only all year
0014,4'-DDEDAILY MX report only all year
001AldrinDAILY MX report only all year
001.alpha.-BHCDAILY MX report only all year
001.beta.-BHCDAILY MX report only all year
001.gamma.-BHCDAILY MX report only all year
001Chlordane [tech mix. and metabolites]DAILY MX report only all year
001DieldrinDAILY MX report only all year
001EndrinDAILY MX report only all year
001ToxapheneDAILY MX report only all year
001HeptachlorDAILY MX report only all year
001Heptachlor epoxideDAILY MX report only all year
001PCB-1221DAILY MX report only all year
001PCB-1232DAILY MX report only all year
001PCB-1242DAILY MX report only all year
001PCB-1248DAILY MX report only all year
001PCB-1254DAILY MX report only all year
001PCB-1260DAILY MX report only all year
001Polychlorinated biphenyls [PCBs]MO AVG <= .012 ug/L all year
001Polychlorinated biphenyls [PCBs]DAILY MX <= .018 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
0011,2,3,4,6,7,8,9-OctachlorodibenzofuranDAILY MX report only all year
0014-Chloro-3-methylphenolDAILY MX report only all year
001Mercury, total recoverableMO AVG <= .079 ug/L all year
001Mercury, total recoverableDAILY MX <= .12 ug/L all year
0011,3-DichloropropeneDAILY MX report only all year
001Total toxic organics [TTO] [40 CFR433]DAILY MX <= 2100 ug/L all year
001TCDD equivalentsMO AVG <= .000013 ng/L all year
001TCDD equivalentsDAILY MX <= .000026 ng/L all year
001ChloroethaneDAILY MX report only all year
001% Survival Flow Through 96Hr Acute Oncorhynchus mykissMINIMUM >= 70 % survival all year
001% Survival Flow Through 96Hr Acute Oncorhynchus mykissBA >= 90 % survival all year
001TU Static 48Hr Chronic Haliotis rufescensMO AVG <= 3.3 tox chronic all year
001TU Static 48Hr Chronic Haliotis rufescensMO AVG <= 3.3 tox chronic all year
001TU Static 48Hr Chronic Haliotis rufescensDAILY MX <= 6.6 tox chronic all year
001TU Static 48Hr Chronic Haliotis rufescensDAILY MX <= 6.6 tox chronic all year
002pHMINIMUM report only all year
002pHMAXIMUM report only all year
002Solids, total suspendedDAILY MX report only all year
002Zinc, total recoverableDAILY MX report only all year
002Aluminum, total recoverableDAILY MX report only all year
002Oil and greaseDAILY MX report only all year
002Volume, totalTOTAL report only all year
002Mercury, total recoverableMO AVG <= .079 ug/L all year
002Mercury, total recoverableDAILY MX <= .12 ug/L all year
INF1Cyanide, total [as CN]DAILY MX report only all year
INF1Copper, total recoverableDAILY MX report only all year
INF2Cyanide, total [as CN]DAILY MX report only all year
INF2Copper, total recoverableDAILY MX report only all year
SUMMercury, total recoverableANNL AVG <= .045 kg/yr all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states