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Chevron Phillips Chemical Company LP

Plastics Materials And Resins, major discharger, Baytown, Texas. NPDES permit TX0003948, in force until Jan 24, 2030. Last 12 months: over a limit 2 times (last August 2026), 10 required values missing, 8 of 75 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (17 values), outfall 002 form A monthly (6 values), outfall 003 form A monthly (7 values), outfall 004 form A monthly (11 values), outfall 101 form A monthly (4 values), outfall 104 form A monthly (6 values), and 6 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
15 values over a limit, 27 required values missing, 12 of 83 reports late

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

Period endingOutfallParameterReportedLimitOver by
April 2026002Oil & Grease, daily maximum20 mg/L≤ 15 mg/L33%
August 2026001Chloroform, daily average.41 lb/d≤ .376 lb/d9%

Limits in force (312)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily average≤ 470 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 940 lb/dall year001
pHminimum≥ 5 SUall year001
pHmaximum≤ 11 SUall year001
Solids, total suspendeddaily average≤ 575 lb/dall year001
Solids, total suspendeddaily maximum≤ 1150 lb/dall year001
Nitrogen, ammonia total [as N]daily average≤ 250 lb/dall year001
Nitrogen, ammonia total [as N]daily maximum≤ 500 lb/dall year001
Carbon, tot organic [TOC]daily average≤ 875 lb/dall year001
Carbon, tot organic [TOC]daily maximum≤ 1750 lb/dall year001
Copper, total [as Cu]daily average≤ .0069 mg/Lall year001
Copper, total [as Cu]daily maximum≤ .015 mg/Lall year001
Nickel, total [as Ni]daily average≤ .022 mg/Lall year001
Nickel, total [as Ni]daily maximum≤ .046 mg/Lall year001
Nickel, total [as Ni]daily average≤ .59 lb/dall year001
Nickel, total [as Ni]daily maximum≤ 1.23 lb/dall year001
Carbon tetrachloridedaily average≤ .21 lb/dall year001
Carbon tetrachloridedaily maximum≤ .45 lb/dall year001
1,2-Dichloroethanedaily average≤ .81 lb/dall year001
1,2-Dichloroethanedaily maximum≤ 2.5 lb/dall year001
Chloroformdaily average≤ .376 lb/dall year001
Chloroformdaily maximum≤ .824 lb/dall year001
Toluenedaily average≤ .31 lb/dall year001
Toluenedaily maximum≤ .95 lb/dall year001
Benzenedaily average≤ .44 lb/dall year001
Benzenedaily maximum≤ 1.61 lb/dall year001
Acenaphthylenedaily average≤ .26 lb/dall year001
Acenaphthylenedaily maximum≤ .7 lb/dall year001
Acenaphthenedaily average≤ .26 lb/dall year001
Acenaphthenedaily maximum≤ .7 lb/dall year001
Acrylonitriledaily average≤ .012 mg/Lall year001
Acrylonitriledaily maximum≤ .026 mg/Lall year001
Acrylonitriledaily average≤ .242 lb/dall year001
Acrylonitriledaily maximum≤ .511 lb/dall year001
Anthracenedaily average≤ .26 lb/dall year001
Anthracenedaily maximum≤ .7 lb/dall year001
Benzo[k]fluoranthenedaily average≤ .26 lb/dall year001
Benzo[k]fluoranthenedaily maximum≤ .7 lb/dall year001
Benzo[a]pyrenedaily average≤ .00012 lb/dall year001
Benzo[a]pyrenedaily maximum≤ .00025 lb/dall year001
Chlorobenzenedaily average≤ .18 lb/dall year001
Chlorobenzenedaily maximum≤ .33 lb/dall year001
Chrysenedaily average≤ .002 lb/dall year001
Chrysenedaily maximum≤ .004 lb/dall year001
Diethyl phthalatedaily average≤ .96 lb/dall year001
Diethyl phthalatedaily maximum≤ 2.41 lb/dall year001
Dimethyl phthalatedaily average≤ .23 lb/dall year001
Dimethyl phthalatedaily maximum≤ .56 lb/dall year001
Ethylbenzenedaily average≤ .38 lb/dall year001
Ethylbenzenedaily maximum≤ 1.28 lb/dall year001
Fluoranthenedaily average≤ .3 lb/dall year001
Fluoranthenedaily maximum≤ .81 lb/dall year001
Fluorenedaily average≤ .26 lb/dall year001
Fluorenedaily maximum≤ .7 lb/dall year001
Hexachlorobutadienedaily average≤ .011 lb/dall year001
Hexachlorobutadienedaily maximum≤ .021 lb/dall year001
Hexachloroethanedaily average≤ .11 lb/dall year001
Hexachloroethanedaily maximum≤ .23 lb/dall year001
Methyl chloride [Chloromethane]daily average≤ 1.02 lb/dall year001
Methyl chloride [Chloromethane]daily maximum≤ 2.25 lb/dall year001
Methylene chloridedaily average≤ .47 lb/dall year001
Methylene chloridedaily maximum≤ 1.05 lb/dall year001
Nitrobenzenedaily average≤ .32 lb/dall year001
Nitrobenzenedaily maximum≤ .81 lb/dall year001
Phenanthrenedaily average≤ .0036 mg/Lall year001
Phenanthrenedaily maximum≤ .0077 mg/Lall year001
Phenanthrenedaily average≤ .12 lb/dall year001
Phenanthrenedaily maximum≤ .26 lb/dall year001
Pyrenedaily average≤ .3 lb/dall year001
Pyrenedaily maximum≤ .79 lb/dall year001
Tetrachloroethylenedaily average≤ .26 lb/dall year001
Tetrachloroethylenedaily maximum≤ .66 lb/dall year001
1,1-Dichloroethanedaily average≤ .26 lb/dall year001
1,1-Dichloroethanedaily maximum≤ .7 lb/dall year001
1,1-Dichloroethylenedaily average≤ .19 lb/dall year001
1,1-Dichloroethylenedaily maximum≤ .3 lb/dall year001
1,1,1-Trichloroethanedaily average≤ .25 lb/dall year001
1,1,1-Trichloroethanedaily maximum≤ .64 lb/dall year001
1,1,2-Trichloroethanedaily average≤ .25 lb/dall year001
1,1,2-Trichloroethanedaily maximum≤ .64 lb/dall year001
Benzo[a]anthracenedaily average≤ .0012 lb/dall year001
Benzo[a]anthracenedaily maximum≤ .0025 lb/dall year001
1,2-Dichlorobenzenedaily average≤ .91 lb/dall year001
1,2-Dichlorobenzenedaily maximum≤ 1.93 lb/dall year001
1,2-Dichloropropanedaily average≤ 1.81 lb/dall year001
1,2-Dichloropropanedaily maximum≤ 2.73 lb/dall year001
trans-1,2-Dichloroethylenedaily average≤ .25 lb/dall year001
trans-1,2-Dichloroethylenedaily maximum≤ .64 lb/dall year001
1,2,4-Trichlorobenzenedaily average≤ .81 lb/dall year001
1,2,4-Trichlorobenzenedaily maximum≤ 1.66 lb/dall year001
1,3-Dichlorobenzenedaily average≤ .37 lb/dall year001
1,3-Dichlorobenzenedaily maximum≤ .52 lb/dall year001
1,4-Dichlorobenzenedaily average≤ .18 lb/dall year001
1,4-Dichlorobenzenedaily maximum≤ .33 lb/dall year001
2-Chlorophenoldaily average≤ .37 lb/dall year001
2-Chlorophenoldaily maximum≤ 1.16 lb/dall year001
2-Nitrophenoldaily average≤ .49 lb/dall year001
2-Nitrophenoldaily maximum≤ .82 lb/dall year001
2,4-Dichlorophenoldaily average≤ .46 lb/dall year001
2,4-Dichlorophenoldaily maximum≤ 1.33 lb/dall year001
2,4-Dimethylphenoldaily average≤ .21 lb/dall year001
2,4-Dimethylphenoldaily maximum≤ .43 lb/dall year001
2,4-Dinitrotoluenedaily average≤ 1.34 lb/dall year001
2,4-Dinitrotoluenedaily maximum≤ 3.38 lb/dall year001
2,4-Dinitrophenoldaily average≤ .84 lb/dall year001
2,4-Dinitrophenoldaily maximum≤ 1.46 lb/dall year001
2,6-Dinitrotoluenedaily average≤ 3.02 lb/dall year001
2,6-Dinitrotoluenedaily maximum≤ 7.6 lb/dall year001
4-Nitrophenoldaily average≤ .85 lb/dall year001
4-Nitrophenoldaily maximum≤ 1.47 lb/dall year001
4,6-Dinitro-o-cresoldaily average≤ .92 lb/dall year001
4,6-Dinitro-o-cresoldaily maximum≤ 3.28 lb/dall year001
Phenoldaily average≤ .18 lb/dall year001
Phenoldaily maximum≤ .31 lb/dall year001
Naphthalenedaily average≤ .26 lb/dall year001
Naphthalenedaily maximum≤ .7 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily average≤ .35 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ .76 lb/dall year001
Di-n-butyl phthalatedaily average≤ .32 lb/dall year001
Di-n-butyl phthalatedaily maximum≤ .68 lb/dall year001
Vinyl chloridedaily average≤ .77 lb/dall year001
Vinyl chloridedaily maximum≤ 1.65 lb/dall year001
Trichloroethylenedaily average≤ .25 lb/dall year001
Trichloroethylenedaily maximum≤ .64 lb/dall year001
Hexachlorobenzenedaily average≤ .000002 mg/Lall year001
Hexachlorobenzenedaily maximum≤ .000004 mg/Lall year001
Hexachlorobenzenedaily average≤ .000039 lb/dall year001
Hexachlorobenzenedaily maximum≤ .000077 lb/dall year001
Phenolsdaily average≤ 2.5 lb/dall year001
Phenolsdaily maximum≤ 5 lb/dall year001
Flow, in conduit or thru treatment plantdaily average≤ 4 MGDall year001
Flow, in conduit or thru treatment plantdaily maximum≤ 6 MGDall year001
1,3-Dichloropropylenedaily average≤ .34 lb/dall year001
1,3-Dichloropropylenedaily maximum≤ .52 lb/dall year001
Cyanide, free availabledaily maximumreport only (mg/L)all year001
3,4-Benzofluoranthenedaily average≤ .27 lb/dall year001
3,4-Benzofluoranthenedaily maximum≤ .72 lb/dall year001
pH range excursions, > 60 minutesmonthly total≤ 0 occur/moall year001
pH range excursions, monthly total accummonthly total≤ 446 minall year001
Chloroethanedaily average≤ 1.23 lb/dall year001
Chloroethanedaily maximum≤ 3.18 lb/dall year001
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Carbon, tot organic [TOC]daily maximum≤ 70 mg/Lall year002
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/Lall year003
pHminimum≥ 6.1 SUall year003
pHmaximum≤ 9 SUall year003
Oil & Greasedaily maximum≤ 15 mg/Lall year003
Carbon, tot organic [TOC]daily maximum≤ 70 mg/Lall year003
Nickel, total [as Ni]daily average≤ .88 lb/dall year003
Nickel, total [as Ni]daily maximum≤ 1.86 lb/dall year003
Benzo[a]pyrenedaily average≤ .00025 lb/dall year003
Benzo[a]pyrenedaily maximum≤ .00054 lb/dall year003
Hexachlorobutadienedaily average≤ .022 lb/dall year003
Hexachlorobutadienedaily maximum≤ .048 lb/dall year003
Benzo[a]anthracenedaily average≤ .0025 lb/dall year003
Benzo[a]anthracenedaily maximum≤ .0054 lb/dall year003
Hexachlorobenzenedaily average≤ .000068 lb/dall year003
Hexachlorobenzenedaily maximum≤ .00015 lb/dall year003
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/Lall year004
pHminimum≥ 6 SUall year004
pHmaximum≤ 9 SUall year004
Oil & Greasedaily maximum≤ 15 mg/Lall year004
Carbon, tot organic [TOC]daily maximum≤ 70 mg/Lall year004
Sulfate, total [as SO4]daily average≤ 484 mg/Lall year004
Sulfate, total [as SO4]daily maximum≤ 1024 mg/Lall year004
Nickel, total [as Ni]daily average≤ 2.56 lb/dall year004
Nickel, total [as Ni]daily maximum≤ 5.41 lb/dall year004
Benzo[a]pyrenedaily average≤ .00043 lb/dall year004
Benzo[a]pyrenedaily maximum≤ .00092 lb/dall year004
Hexachlorobutadienedaily average≤ .038 lb/dall year004
Hexachlorobutadienedaily maximum≤ .081 lb/dall year004
Benzo[a]anthracenedaily average≤ .0043 lb/dall year004
Benzo[a]anthracenedaily maximum≤ .0092 lb/dall year004
Hexachlorobenzenedaily average≤ .00012 lb/dall year004
Hexachlorobenzenedaily maximum≤ .00025 lb/dall year004
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
Solids, total dissolveddaily average≤ 1643 mg/Lall year004
Solids, total dissolveddaily maximum≤ 3477 mg/Lall year004
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
Enterococcidaily average≤ 35 CFU/100mLall year101
Enterococcidaily maximum≤ 104 CFU/100mLall year101
BOD, 5-day, 20 deg. Cdaily average≤ 200 lb/dall year104
BOD, 5-day, 20 deg. Cdaily maximum≤ 424 lb/dall year104
Solids, total suspendeddaily average≤ 371 lb/dall year104
Solids, total suspendeddaily maximum≤ 1019.2 lb/dall year104
Carbon tetrachloridedaily average≤ .09 lb/dall year104
Carbon tetrachloridedaily maximum≤ .18 lb/dall year104
1,2-Dichloroethanedaily average≤ .33 lb/dall year104
1,2-Dichloroethanedaily maximum≤ 1.03 lb/dall year104
Chloroformdaily average≤ .6 lb/dall year104
Chloroformdaily maximum≤ .85 lb/dall year104
Toluenedaily average≤ .13 lb/dall year104
Toluenedaily maximum≤ .39 lb/dall year104
Benzenedaily average≤ .18 lb/dall year104
Benzenedaily maximum≤ .66 lb/dall year104
Acenaphthylenedaily average≤ .11 lb/dall year104
Acenaphthylenedaily maximum≤ .29 lb/dall year104
Acenaphthenedaily average≤ .11 lb/dall year104
Acenaphthenedaily maximum≤ .29 lb/dall year104
Acrylonitriledaily average≤ .47 lb/dall year104
Acrylonitriledaily maximum≤ 1.18 lb/dall year104
Anthracenedaily average≤ .11 lb/dall year104
Anthracenedaily maximum≤ .29 lb/dall year104
Benzo[k]fluoranthenedaily average≤ .11 lb/dall year104
Benzo[k]fluoranthenedaily maximum≤ .29 lb/dall year104
Chlorobenzenedaily average≤ .07 lb/dall year104
Chlorobenzenedaily maximum≤ .14 lb/dall year104
Chrysenedaily average≤ .11 lb/dall year104
Chrysenedaily maximum≤ .29 lb/dall year104
Diethyl phthalatedaily average≤ .39 lb/dall year104
Diethyl phthalatedaily maximum≤ .99 lb/dall year104
Dimethyl phthalatedaily average≤ .09 lb/dall year104
Dimethyl phthalatedaily maximum≤ .23 lb/dall year104
Ethylbenzenedaily average≤ .16 lb/dall year104
Ethylbenzenedaily maximum≤ .53 lb/dall year104
Fluoranthenedaily average≤ .12 lb/dall year104
Fluoranthenedaily maximum≤ .33 lb/dall year104
Fluorenedaily average≤ .11 lb/dall year104
Fluorenedaily maximum≤ .29 lb/dall year104
Hexachloroethanedaily average≤ .1 lb/dall year104
Hexachloroethanedaily maximum≤ .26 lb/dall year104
Methyl chloride [Chloromethane]daily average≤ .42 lb/dall year104
Methyl chloride [Chloromethane]daily maximum≤ .92 lb/dall year104
Methylene chloridedaily average≤ .19 lb/dall year104
Methylene chloridedaily maximum≤ .43 lb/dall year104
Nitrobenzenedaily average≤ .13 lb/dall year104
Nitrobenzenedaily maximum≤ .33 lb/dall year104
Phenanthrenedaily average≤ .11 lb/dall year104
Phenanthrenedaily maximum≤ .29 lb/dall year104
Pyrenedaily average≤ .12 lb/dall year104
Pyrenedaily maximum≤ .33 lb/dall year104
Tetrachloroethylenedaily average≤ .11 lb/dall year104
Tetrachloroethylenedaily maximum≤ .27 lb/dall year104
1,1-Dichloroethanedaily average≤ .11 lb/dall year104
1,1-Dichloroethanedaily maximum≤ .29 lb/dall year104
1,1-Dichloroethylenedaily average≤ .08 lb/dall year104
1,1-Dichloroethylenedaily maximum≤ .12 lb/dall year104
1,1,1-Trichloroethanedaily average≤ .1 lb/dall year104
1,1,1-Trichloroethanedaily maximum≤ .26 lb/dall year104
1,1,2-Trichloroethanedaily average≤ .1 lb/dall year104
1,1,2-Trichloroethanedaily maximum≤ .26 lb/dall year104
1,2-Dichlorobenzenedaily average≤ .37 lb/dall year104
1,2-Dichlorobenzenedaily maximum≤ .79 lb/dall year104
1,2-Dichloropropanedaily average≤ .74 lb/dall year104
1,2-Dichloropropanedaily maximum≤ 1.12 lb/dall year104
trans-1,2-Dichloroethylenedaily average≤ .1 lb/dall year104
trans-1,2-Dichloroethylenedaily maximum≤ .26 lb/dall year104
1,2,4-Trichlorobenzenedaily average≤ .33 lb/dall year104
1,2,4-Trichlorobenzenedaily maximum≤ .68 lb/dall year104
1,3-Dichlorobenzenedaily average≤ .15 lb/dall year104
1,3-Dichlorobenzenedaily maximum≤ .21 lb/dall year104
1,4-Dichlorobenzenedaily average≤ .07 lb/dall year104
1,4-Dichlorobenzenedaily maximum≤ .14 lb/dall year104
2-Chlorophenoldaily average≤ .15 lb/dall year104
2-Chlorophenoldaily maximum≤ .48 lb/dall year104
2-Nitrophenoldaily average≤ .2 lb/dall year104
2-Nitrophenoldaily maximum≤ .34 lb/dall year104
2,4-Dichlorophenoldaily average≤ .19 lb/dall year104
2,4-Dichlorophenoldaily maximum≤ .54 lb/dall year104
2,4-Dimethylphenoldaily average≤ .09 lb/dall year104
2,4-Dimethylphenoldaily maximum≤ .18 lb/dall year104
2,4-Dinitrotoluenedaily average≤ .55 lb/dall year104
2,4-Dinitrotoluenedaily maximum≤ 1.39 lb/dall year104
2,4-Dinitrophenoldaily average≤ .35 lb/dall year104
2,4-Dinitrophenoldaily maximum≤ .6 lb/dall year104
2,6-Dinitrotoluenedaily average≤ 1.24 lb/dall year104
2,6-Dinitrotoluenedaily maximum≤ 3.12 lb/dall year104
4-Nitrophenoldaily average≤ .35 lb/dall year104
4-Nitrophenoldaily maximum≤ .6 lb/dall year104
4,6-Dinitro-o-cresoldaily average≤ .38 lb/dall year104
4,6-Dinitro-o-cresoldaily maximum≤ 1.35 lb/dall year104
Phenoldaily average≤ .07 lb/dall year104
Phenoldaily maximum≤ .13 lb/dall year104
Naphthalenedaily average≤ .11 lb/dall year104
Naphthalenedaily maximum≤ .29 lb/dall year104
Di[2-ethylhexyl] phthalate [DEHP]daily average≤ .5 lb/dall year104
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 1.36 lb/dall year104
Di-n-butyl phthalatedaily average≤ .13 lb/dall year104
Di-n-butyl phthalatedaily maximum≤ .28 lb/dall year104
Vinyl chloridedaily average≤ .51 lb/dall year104
Vinyl chloridedaily maximum≤ 1.304 lb/dall year104
Trichloroethylenedaily average≤ .1 lb/dall year104
Trichloroethylenedaily maximum≤ .26 lb/dall year104
Flow, in conduit or thru treatment plantdaily average≤ 2.4 MGDall year104
Flow, in conduit or thru treatment plantdaily maximum≤ 3.5 MGDall year104
1,3-Dichloropropylenedaily average≤ .14 lb/dall year104
1,3-Dichloropropylenedaily maximum≤ .21 lb/dall year104
3,4-Benzofluoranthenedaily average≤ .11 lb/dall year104
3,4-Benzofluoranthenedaily maximum≤ .3 lb/dall year104
Chloroethanedaily average≤ .51 lb/dall year104
Chloroethanedaily maximum≤ 1.3 lb/dall year104
IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7-day minimumreport only (pass=0;fail=1)all yearTX1
IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)monthly average minimumreport only (pass=0;fail=1)all yearTX1
IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (M. bahia)7-day minimumreport only (pass=0;fail=1)all yearTX1
IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (M. bahia)monthly average minimumreport only (pass=0;fail=1)all yearTX1
IC25 Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7-day minimumreport only (%)all yearTX1
IC25 Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)monthly average minimumreport only (%)all yearTX1
IC25 Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7-day minimumreport only (%)all yearTX1
IC25 Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)monthly average minimumreport only (%)all yearTX1
Whole effluent toxicity - retest #1single samplereport only (pass=0;fail=1)all yearTXA
Whole effluent toxicity - retest #2single samplereport only (pass=0;fail=1)all yearTXA
LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)single samplereport only (pass=0;fail=1)all yearTXA
LC50 Pass/Fail Static 24Hr Acute Menidia beryllinasingle samplereport only (pass=0;fail=1)all yearTXA

New limits from Feb 1, 2028

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Solids, total dissolved, daily average1582 mg/Ltighter——
Solids, total dissolved, daily maximum3348 mg/Ltighter——
Sulfate, total [as SO4], daily average459 mg/Ltighter——
Sulfate, total [as SO4], daily maximum972 mg/Ltighter——

How strict are these limits?

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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