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Cedar Pnid and Sumika Semiconductor Materials Texas Inc

Industrial Organic Chemicals, Baytown, Texas. NPDES permit TX0144355, in force until Jan 2, 2029. Last 12 months: over a limit 6 times (last August 2026), 10 of 25 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (14 values), outfall 101 form A monthly (10 values), outfall 101 form Y yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
28 values over a limit, 0 required values missing, 11 of 22 reports late

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

Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, daily average.94 lb/d≤ .551 lb/d71%
October 2025BOD, 5-day, 20 deg. C, daily maximum1.8 lb/d≤ 1.47 lb/d22%
October 2025Flow, in conduit or thru treatment plant, daily average.0027 MGD≤ .0022 MGD23%
October 2025Flow, in conduit or thru treatment plant, daily maximum.0221 MGD≤ .0044 MGD402%
November 2025BOD, 5-day, 20 deg. C, daily average.69 lb/d≤ .551 lb/d25%
August 2026Carbon tetrachloride, daily average≤ .005 lb/d≤ .00261 lb/d92%

Limits in force (128)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 5 SUall year001
pHmaximum≤ 11 SUall year001
Solids, total suspendeddaily averagereport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Solids, total suspendeddaily average≤ 4.48 lb/dall year001
Solids, total suspendeddaily maximum≤ 12.4 lb/dall year001
Oil & Greasedaily averagereport only (mg/L)all year001
Oil & Greasedaily maximumreport only (mg/L)all year001
Oil & Greasedaily average≤ 2.6 lb/dall year001
Oil & Greasedaily maximum≤ 5.21 lb/dall year001
Flow, in conduit or thru treatment plantdaily average≤ .0312 MGDall year001
Flow, in conduit or thru treatment plantdaily maximum≤ .0694 MGDall year001
pH range excursions, > 60 minutesmonthly totalreport only (occur/mo)all year001
pH range excursions, monthly total accummonthly total≤ 446 minall year001
BOD, 5-day, 20 deg. Cdaily averagereport only (mg/L)all year101
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year101
BOD, 5-day, 20 deg. Cdaily average≤ .551 lb/dall year101
BOD, 5-day, 20 deg. Cdaily maximum≤ 1.47 lb/dall year101
Solids, total suspendeddaily averagereport only (mg/L)all year101
Solids, total suspendeddaily maximumreport only (mg/L)all year101
Solids, total suspendeddaily average≤ .845 lb/dall year101
Solids, total suspendeddaily maximum≤ 2.74 lb/dall year101
Carbon tetrachloridedaily average≤ .00261 lb/dall year101
Carbon tetrachloridedaily maximum≤ .00698 lb/dall year101
1,2-Dichloroethanedaily average≤ .0033 lb/dall year101
1,2-Dichloroethanedaily maximum≤ .0105 lb/dall year101
Chloroformdaily average≤ .00204 lb/dall year101
Chloroformdaily maximum≤ .00597 lb/dall year101
Toluenedaily average≤ .000514 lb/dall year101
Toluenedaily maximum≤ .00136 lb/dall year101
Benzenedaily average≤ .00105 lb/dall year101
Benzenedaily maximum≤ .00246 lb/dall year101
Acenaphthylenedaily average≤ .000349 lb/dall year101
Acenaphthylenedaily maximum≤ .000863 lb/dall year101
Acenaphthenedaily average≤ .000349 lb/dall year101
Acenaphthenedaily maximum≤ .000863 lb/dall year101
Acrylonitriledaily average≤ .00173 lb/dall year101
Acrylonitriledaily maximum≤ .00426 lb/dall year101
Anthracenedaily average≤ .000349 lb/dall year101
Anthracenedaily maximum≤ .000863 lb/dall year101
Benzo[k]fluoranthenedaily average≤ .000349 lb/dall year101
Benzo[k]fluoranthenedaily maximum≤ .000863 lb/dall year101
Benzo[a]pyrenedaily average≤ .000367 lb/dall year101
Benzo[a]pyrenedaily maximum≤ .000881 lb/dall year101
Chlorobenzenedaily average≤ .00261 lb/dall year101
Chlorobenzenedaily maximum≤ .00698 lb/dall year101
Chrysenedaily average≤ .000349 lb/dall year101
Chrysenedaily maximum≤ .000863 lb/dall year101
Diethyl phthalatedaily average≤ .000845 lb/dall year101
Diethyl phthalatedaily maximum≤ .00207 lb/dall year101
Dimethyl phthalatedaily average≤ .000349 lb/dall year101
Dimethyl phthalatedaily maximum≤ .000863 lb/dall year101
Ethylbenzenedaily average≤ .00261 lb/dall year101
Ethylbenzenedaily maximum≤ .00698 lb/dall year101
Fluoranthenedaily average≤ .000404 lb/dall year101
Fluoranthenedaily maximum≤ .000991 lb/dall year101
Fluorenedaily average≤ .000349 lb/dall year101
Fluorenedaily maximum≤ .000863 lb/dall year101
Hexachlorobutadienedaily average≤ .00261 lb/dall year101
Hexachlorobutadienedaily maximum≤ .00698 lb/dall year101
Hexachloroethanedaily average≤ .0036 lb/dall year101
Hexachloroethanedaily maximum≤ .0146 lb/dall year101
Methyl chloride [Chloromethane]daily average≤ .00202 lb/dall year101
Methyl chloride [Chloromethane]daily maximum≤ .00542 lb/dall year101
Methylene chloridedaily average≤ .000661 lb/dall year101
Methylene chloridedaily maximum≤ .00312 lb/dall year101
Nitrobenzenedaily average≤ .0411 lb/dall year101
Nitrobenzenedaily maximum≤ .118 lb/dall year101
Phenanthrenedaily average≤ .000349 lb/dall year101
Phenanthrenedaily maximum≤ .000863 lb/dall year101
Pyrenedaily average≤ .000367 lb/dall year101
Pyrenedaily maximum≤ .000881 lb/dall year101
Tetrachloroethylenedaily average≤ .000955 lb/dall year101
Tetrachloroethylenedaily maximum≤ .00301 lb/dall year101
1,1-Dichloroethanedaily average≤ .000404 lb/dall year101
1,1-Dichloroethanedaily maximum≤ .00108 lb/dall year101
1,1-Dichloroethylenedaily average≤ .000404 lb/dall year101
1,1-Dichloroethylenedaily maximum≤ .0011 lb/dall year101
1,1,1-Trichloroethanedaily average≤ .000404 lb/dall year101
1,1,1-Trichloroethanedaily maximum≤ .00108 lb/dall year101
1,1,2-Trichloroethanedaily average≤ .000587 lb/dall year101
1,1,2-Trichloroethanedaily maximum≤ .00233 lb/dall year101
Benzo[a]anthracenedaily average≤ .000349 lb/dall year101
Benzo[a]anthracenedaily maximum≤ .000863 lb/dall year101
1,2-Dichlorobenzenedaily average≤ .0036 lb/dall year101
1,2-Dichlorobenzenedaily maximum≤ .0146 lb/dall year101
1,2-Dichloropropanedaily average≤ .0036 lb/dall year101
1,2-Dichloropropanedaily maximum≤ .0146 lb/dall year101
trans-1,2-Dichloroethylenedaily average≤ .000459 lb/dall year101
trans-1,2-Dichloroethylenedaily maximum≤ .00121 lb/dall year101
1,2,4-Trichlorobenzenedaily average≤ .0036 lb/dall year101
1,2,4-Trichlorobenzenedaily maximum≤ .0146 lb/dall year101
1,3-Dichlorobenzenedaily average≤ .00261 lb/dall year101
1,3-Dichlorobenzenedaily maximum≤ .00698 lb/dall year101
1,4-Dichlorobenzenedaily average≤ .00261 lb/dall year101
1,4-Dichlorobenzenedaily maximum≤ .00698 lb/dall year101
2-Nitrophenoldaily average≤ .00119 lb/dall year101
2-Nitrophenoldaily maximum≤ .00424 lb/dall year101
2,4-Dimethylphenoldaily average≤ .000349 lb/dall year101
2,4-Dimethylphenoldaily maximum≤ .000863 lb/dall year101
2,4-Dinitrophenoldaily average≤ .0222 lb/dall year101
2,4-Dinitrophenoldaily maximum≤ .0788 lb/dall year101
4-Nitrophenoldaily average≤ .00297 lb/dall year101
4-Nitrophenoldaily maximum≤ .0106 lb/dall year101
4,6-Dinitro-o-cresoldaily average≤ .00143 lb/dall year101
4,6-Dinitro-o-cresoldaily maximum≤ .00509 lb/dall year101
Phenoldaily average≤ .000349 lb/dall year101
Phenoldaily maximum≤ .000863 lb/dall year101
Naphthalenedaily average≤ .000349 lb/dall year101
Naphthalenedaily maximum≤ .000863 lb/dall year101
Di[2-ethylhexyl] phthalate [DEHP]daily average≤ .00174 lb/dall year101
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ .00474 lb/dall year101
Di-n-butyl phthalatedaily average≤ .000367 lb/dall year101
Di-n-butyl phthalatedaily maximum≤ .000789 lb/dall year101
Vinyl chloridedaily average≤ .00178 lb/dall year101
Vinyl chloridedaily maximum≤ .00316 lb/dall year101
Trichloroethylenedaily average≤ .000477 lb/dall year101
Trichloroethylenedaily maximum≤ .00127 lb/dall year101
Hexachlorobenzenedaily average≤ .0036 lb/dall year101
Hexachlorobenzenedaily maximum≤ .0146 lb/dall year101
Flow, in conduit or thru treatment plantdaily average≤ .0022 MGDall year101
Flow, in conduit or thru treatment plantdaily maximum≤ .0044 MGDall year101
1,3-Dichloropropylenedaily average≤ .0036 lb/dall year101
1,3-Dichloropropylenedaily maximum≤ .0146 lb/dall year101
3,4-Benzofluoranthenedaily average≤ .000367 lb/dall year101
3,4-Benzofluoranthenedaily maximum≤ .000881 lb/dall year101
Chloroethanedaily average≤ .00202 lb/dall year101
Chloroethanedaily maximum≤ .00542 lb/dall year101

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

Same industry: the 165 Chemicals and Allied Products permits in Texas.

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