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Solstice Advanced Materials US Inc

Plastics Materials And Resins, major discharger, Orange, Texas. NPDES permit TX0007897 expired Mar 1, 2011; its limits still apply. Last 12 months: over a limit 3 times (last August 2026), 4 of 40 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (20 values), outfall 002 form A monthly (6 values), outfall 101 form A monthly (2 values), outfall TX1 form Q quarterly (24 values), outfall 001 form Y yearly, outfall TXA form S twice a year
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 43 reports late

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

Period endingParameterReportedLimitOver by
July 2026Solids, total suspended, daily average251.5 lb/d≤ 185 lb/d36%
August 2026BOD, 5-day, 20 deg. C, daily average658.23 lb/d≤ 117 lb/d463%
August 2026BOD, 5-day, 20 deg. C, daily maximum2584.78 lb/d≤ 300 lb/d762%

Limits in force (176)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly minimumreport only (mg/L)all year001
Oxygen, dissolved [DO]daily averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cdaily average≤ 117 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 300 lb/dall year001
Oxygen demand, chem. [high level] [COD]daily average≤ 825 lb/dall year001
Oxygen demand, chem. [high level] [COD]daily maximum≤ 1650 lb/dall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendeddaily average≤ 185 lb/dall year001
Solids, total suspendeddaily maximum≤ 500 lb/dall year001
Oil & Greasedaily average≤ 10 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Nitrogen, ammonia total [as N]daily averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Cyanide, total [as CN]daily average≤ .019 lb/dall year001
Cyanide, total [as CN]daily maximum≤ .043 lb/dall year001
Chromium, total [as Cr]daily average≤ .66 lb/dall year001
Chromium, total [as Cr]daily maximum≤ 1.4 lb/dall year001
Copper, total [as Cu]daily average≤ .18 lb/dall year001
Copper, total [as Cu]daily maximum≤ .37 lb/dall year001
Lead, total [as Pb]daily average≤ .19 lb/dall year001
Lead, total [as Pb]daily maximum≤ .4 lb/dall year001
Nickel, total [as Ni]daily average≤ .18 lb/dall year001
Nickel, total [as Ni]daily maximum≤ .37 lb/dall year001
Silver, total [as Ag]daily average≤ .018 lb/dall year001
Silver, total [as Ag]daily maximum≤ .038 lb/dall year001
Zinc, total [as Zn]daily average≤ .44 lb/dall year001
Zinc, total [as Zn]daily maximum≤ .94 lb/dall year001
Carbon tetrachloridedaily average≤ .08 lb/dall year001
Carbon tetrachloridedaily maximum≤ .17 lb/dall year001
1,2-Dichloroethanedaily average≤ .31 lb/dall year001
1,2-Dichloroethanedaily maximum≤ .96 lb/dall year001
Chloroformdaily average≤ .1 lb/dall year001
Chloroformdaily maximum≤ .21 lb/dall year001
Toluenedaily average≤ .12 lb/dall year001
Toluenedaily maximum≤ .36 lb/dall year001
Benzenedaily average≤ .17 lb/dall year001
Benzenedaily maximum≤ .62 lb/dall year001
Acenaphthylenedaily average≤ .1 lb/dall year001
Acenaphthylenedaily maximum≤ .27 lb/dall year001
Acenaphthenedaily average≤ .1 lb/dall year001
Acenaphthenedaily maximum≤ .27 lb/dall year001
Acrylonitriledaily average≤ .44 lb/dall year001
Acrylonitriledaily maximum≤ 1.1 lb/dall year001
Anthracenedaily average≤ .1 lb/dall year001
Anthracenedaily maximum≤ .27 lb/dall year001
Benzo[k]fluoranthenedaily average≤ .1 lb/dall year001
Benzo[k]fluoranthenedaily maximum≤ .27 lb/dall year001
Benzo[a]pyrenedaily average≤ .1 lb/dall year001
Benzo[a]pyrenedaily maximum≤ .28 lb/dall year001
Chlorobenzenedaily average≤ .07 lb/dall year001
Chlorobenzenedaily maximum≤ .13 lb/dall year001
Chrysenedaily average≤ .1 lb/dall year001
Chrysenedaily maximum≤ .27 lb/dall year001
Diethyl phthalatedaily average≤ .37 lb/dall year001
Diethyl phthalatedaily maximum≤ .93 lb/dall year001
Dimethyl phthalatedaily average≤ .09 lb/dall year001
Dimethyl phthalatedaily maximum≤ .21 lb/dall year001
Ethylbenzenedaily average≤ .15 lb/dall year001
Ethylbenzenedaily maximum≤ .49 lb/dall year001
Fluoranthenedaily average≤ .11 lb/dall year001
Fluoranthenedaily maximum≤ .31 lb/dall year001
Fluorenedaily average≤ .1 lb/dall year001
Fluorenedaily maximum≤ .27 lb/dall year001
Hexachlorobutadienedaily average≤ .09 lb/dall year001
Hexachlorobutadienedaily maximum≤ .22 lb/dall year001
Hexachloroethanedaily average≤ .1 lb/dall year001
Hexachloroethanedaily maximum≤ .25 lb/dall year001
Methyl chloride [Chloromethane]daily average≤ .39 lb/dall year001
Methyl chloride [Chloromethane]daily maximum≤ .87 lb/dall year001
Methylene chloridedaily average≤ .18 lb/dall year001
Methylene chloridedaily maximum≤ .41 lb/dall year001
Nitrobenzenedaily average≤ .12 lb/dall year001
Nitrobenzenedaily maximum≤ .31 lb/dall year001
Phenanthrenedaily average≤ .027 lb/dall year001
Phenanthrenedaily maximum≤ .057 lb/dall year001
Pyrenedaily average≤ .11 lb/dall year001
Pyrenedaily maximum≤ .31 lb/dall year001
Tetrachloroethylenedaily average≤ .1 lb/dall year001
Tetrachloroethylenedaily maximum≤ .26 lb/dall year001
1,1-Dichloroethanedaily average≤ .1 lb/dall year001
1,1-Dichloroethanedaily maximum≤ .27 lb/dall year001
1,1-Dichloroethylenedaily average≤ .07 lb/dall year001
1,1-Dichloroethylenedaily maximum≤ .11 lb/dall year001
1,1,1-Trichloroethanedaily average≤ .1 lb/dall year001
1,1,1-Trichloroethanedaily maximum≤ .25 lb/dall year001
1,1,2-Trichloroethanedaily average≤ .1 lb/dall year001
1,1,2-Trichloroethanedaily maximum≤ .25 lb/dall year001
Benzo[a]anthracenedaily average≤ .1 lb/dall year001
Benzo[a]anthracenedaily maximum≤ .27 lb/dall year001
1,2-Dichlorobenzenedaily average≤ .35 lb/dall year001
1,2-Dichlorobenzenedaily maximum≤ .74 lb/dall year001
1,2-Dichloropropanedaily average≤ .7 lb/dall year001
1,2-Dichloropropanedaily maximum≤ 1.05 lb/dall year001
trans-1,2-Dichloroethylenedaily average≤ .1 lb/dall year001
trans-1,2-Dichloroethylenedaily maximum≤ .25 lb/dall year001
1,2,4-Trichlorobenzenedaily average≤ .31 lb/dall year001
1,2,4-Trichlorobenzenedaily maximum≤ .64 lb/dall year001
1,3-Dichlorobenzenedaily average≤ .14 lb/dall year001
1,3-Dichlorobenzenedaily maximum≤ .2 lb/dall year001
1,4-Dichlorobenzenedaily average≤ .07 lb/dall year001
1,4-Dichlorobenzenedaily maximum≤ .13 lb/dall year001
2-Chlorophenoldaily average≤ .14 lb/dall year001
2-Chlorophenoldaily maximum≤ .45 lb/dall year001
2-Nitrophenoldaily average≤ .19 lb/dall year001
2-Nitrophenoldaily maximum≤ .31 lb/dall year001
2,4-Dichlorophenoldaily average≤ .18 lb/dall year001
2,4-Dichlorophenoldaily maximum≤ .51 lb/dall year001
2,4-Dimethylphenoldaily average≤ .08 lb/dall year001
2,4-Dimethylphenoldaily maximum≤ .16 lb/dall year001
2,4-Dinitrotoluenedaily average≤ .52 lb/dall year001
2,4-Dinitrotoluenedaily maximum≤ 1.3 lb/dall year001
2,4-Dinitrophenoldaily average≤ .32 lb/dall year001
2,4-Dinitrophenoldaily maximum≤ .56 lb/dall year001
2,6-Dinitrotoluenedaily average≤ 1.16 lb/dall year001
2,6-Dinitrotoluenedaily maximum≤ 2.92 lb/dall year001
4-Nitrophenoldaily average≤ .33 lb/dall year001
4-Nitrophenoldaily maximum≤ .57 lb/dall year001
4,6-Dinitro-o-cresoldaily average≤ .36 lb/dall year001
4,6-Dinitro-o-cresoldaily maximum≤ 1.26 lb/dall year001
Phenoldaily average≤ .07 lb/dall year001
Phenoldaily maximum≤ .12 lb/dall year001
Naphthalenedaily average≤ .1 lb/dall year001
Naphthalenedaily maximum≤ .27 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily average≤ .47 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 1.27 lb/dall year001
Di-n-butyl phthalatedaily average≤ .12 lb/dall year001
Di-n-butyl phthalatedaily maximum≤ .26 lb/dall year001
Vinyl chloridedaily average≤ .47 lb/dall year001
Vinyl chloridedaily maximum≤ 1.22 lb/dall year001
Trichloroethylenedaily average≤ .1 lb/dall year001
Trichloroethylenedaily maximum≤ .25 lb/dall year001
Hexachlorobenzenedaily average≤ .0004 lb/dall year001
Hexachlorobenzenedaily maximum≤ .0008 lb/dall year001
Flow, in conduit or thru treatment plantdaily average≤ 1.4 MGDall year001
Flow, in conduit or thru treatment plantdaily maximum≤ 2.1 MGDall year001
1,3-Dichloropropylenedaily average≤ .13 lb/dall year001
1,3-Dichloropropylenedaily maximum≤ .2 lb/dall year001
3,4-Benzofluoranthenedaily average≤ .1 lb/dall year001
3,4-Benzofluoranthenedaily maximum≤ .28 lb/dall year001
Chloroethanedaily average≤ .47 lb/dall year001
Chloroethanedaily maximum≤ 1.22 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
Coliform, fecal generaldaily averagereport only (CFU/100mL)all year101
Coliform, fecal generaldaily maximumreport only (CFU/100mL)all year101
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7-day minimumreport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)monthly average minimumreport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia7-day minimumreport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidiamonthly average minimumreport only (pass=0;fail=1)all yearTX1
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7-day minimumreport only (%)all yearTX1
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)monthly average minimumreport only (%)all yearTX1
NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia7-day minimumreport only (%)all yearTX1
NOEC Lethal Static Renewal 7 Day Chronic Menidia menidiamonthly average minimumreport only (%)all yearTX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7-day minimumreport only (%)all yearTX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)monthly average minimumreport only (%)all yearTX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia7-day minimumreport only (%)all yearTX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidiamonthly average minimumreport only (%)all yearTX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7-day minimumreport only (pass=0;fail=1)all yearTX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)monthly average minimumreport only (pass=0;fail=1)all yearTX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia7-day minimumreport only (pass=0;fail=1)all yearTX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidiamonthly average minimumreport only (pass=0;fail=1)all yearTX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7-day minimumreport only (%)all yearTX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)monthly average minimumreport only (%)all yearTX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia7-day minimumreport only (%)all yearTX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidiamonthly average minimumreport only (%)all yearTX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7-day minimumreport only (%)all yearTX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)monthly average minimumreport only (%)all yearTX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia7-day minimumreport only (%)all yearTX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidiamonthly average minimumreport only (%)all yearTX1
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 menidiasingle samplereport only (pass=0;fail=1)all yearTXA

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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