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Solstice Advanced Materials US, Inc.- Baton Rouge Facility

Industrial Organic Chemicals, major discharger, Baton Rouge, Louisiana. NPDES permit LA0000329, in force until Oct 31, 2029. Last 12 months: over a limit 3 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form A monthly (44 values), outfall 001 form Q quarterly (2 values), outfall 003 form A monthly (10 values), outfall 004 form Q quarterly (8 values), outfall 005 form Q quarterly (6 values), outfall 101 form A monthly (14 values), and 4 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 3 of 55 reports late

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

Period endingOutfallParameterReportedLimitOver by
December 2025201Coliform, fecal general, daily maximum5600 #/100mL≤ 400 #/100mL1300%
December 2025201Coliform, fecal general, monthly geometric mean5600 #/100mL≤ 200 #/100mL2700%
July 2026003Zinc, total [as Zn], daily maximum.86 mg/L≤ .8 mg/L8%

Limits in force (202)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 230 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 609 lb/dall year001
pHminimumreport only (SU)all year001
pHmaximumreport only (SU)all year001
Solids, total suspendedmonthly average≤ 5750 lb/dall year001
Solids, total suspendeddaily maximum≤ 11617 lb/dall year001
Cyanide, total [as CN]monthly average≤ 2.64 lb/dall year001
Cyanide, total [as CN]daily maximum≤ 7.54 lb/dall year001
Fluoride, total [as F]monthly average≤ 207.45 lb/dall year001
Fluoride, total [as F]daily maximum≤ 414.9 lb/dall year001
Chromium, total [as Cr]monthly average≤ 6.98 lb/dall year001
Chromium, total [as Cr]daily maximum≤ 17.41 lb/dall year001
Copper, total [as Cu]monthly average≤ 9.12 lb/dall year001
Copper, total [as Cu]daily maximum≤ 21.25 lb/dall year001
Lead, total [as Pb]monthly average≤ 2.01 lb/dall year001
Lead, total [as Pb]daily maximum≤ 4.34 lb/dall year001
Nickel, total [as Ni]monthly average≤ 10.62 lb/dall year001
Nickel, total [as Ni]daily maximum≤ 25.02 lb/dall year001
Zinc, total [as Zn]monthly average≤ 6.6 lb/dall year001
Zinc, total [as Zn]daily maximum≤ 16.41 lb/dall year001
Antimony, total [as Sb]monthly average≤ 2.49 lb/dall year001
Antimony, total [as Sb]daily maximum≤ 4.97 lb/dall year001
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all year001
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all year001
Whole effluent toxicity - retest #148-hour minimumreport only (pass=0;fail=1)all year001
Whole effluent toxicity - retest #148-hour minimumreport only (pass=0;fail=1)all year001
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)all year001
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)all year001
Whole effluent toxicity - retest #248-hour minimumreport only (pass=0;fail=1)all year001
Whole effluent toxicity - retest #248-hour minimumreport only (pass=0;fail=1)all year001
Carbon tetrachloridemonthly average≤ .89 lb/dall year001
Carbon tetrachloridedaily maximum≤ 2.39 lb/dall year001
1,2-Dichloroethanemonthly average≤ 1.13 lb/dall year001
1,2-Dichloroethanedaily maximum≤ 3.61 lb/dall year001
Bromoformmonthly average≤ .89 lb/dall year001
Bromoformdaily maximum≤ 2.39 lb/dall year001
Chloroformmonthly average≤ .7 lb/dall year001
Chloroformdaily maximum≤ 2.04 lb/dall year001
Toluenemonthly average≤ .18 lb/dall year001
Toluenedaily maximum≤ .47 lb/dall year001
Benzenemonthly average≤ .36 lb/dall year001
Benzenedaily maximum≤ .84 lb/dall year001
Acenaphthylenemonthly average≤ .12 lb/dall year001
Acenaphthylenedaily maximum≤ .3 lb/dall year001
Acenaphthenemonthly average≤ .12 lb/dall year001
Acenaphthenedaily maximum≤ .3 lb/dall year001
Acrylonitrilemonthly average≤ .59 lb/dall year001
Acrylonitriledaily maximum≤ 1.46 lb/dall year001
Anthracenemonthly average≤ .12 lb/dall year001
Anthracenedaily maximum≤ .3 lb/dall year001
Benzo[b]fluoranthenemonthly average≤ .13 lb/dall year001
Benzo[b]fluoranthenedaily maximum≤ .3 lb/dall year001
Benzo[k]fluoranthenemonthly average≤ .12 lb/dall year001
Benzo[k]fluoranthenedaily maximum≤ .3 lb/dall year001
Benzo[a]pyrenemonthly average≤ .13 lb/dall year001
Benzo[a]pyrenedaily maximum≤ .3 lb/dall year001
Chlorobenzenemonthly average≤ .89 lb/dall year001
Chlorobenzenedaily maximum≤ 2.39 lb/dall year001
Chlorodibromomethanemonthly average≤ .89 lb/dall year001
Chlorodibromomethanedaily maximum≤ 2.39 lb/dall year001
Chrysenemonthly average≤ .12 lb/dall year001
Chrysenedaily maximum≤ .3 lb/dall year001
Diethyl phthalatemonthly average≤ .29 lb/dall year001
Diethyl phthalatedaily maximum≤ .71 lb/dall year001
Dimethyl phthalatemonthly average≤ .12 lb/dall year001
Dimethyl phthalatedaily maximum≤ .3 lb/dall year001
Ethylbenzenemonthly average≤ .89 lb/dall year001
Ethylbenzenedaily maximum≤ 2.39 lb/dall year001
Fluoranthenemonthly average≤ .14 lb/dall year001
Fluoranthenedaily maximum≤ .34 lb/dall year001
Fluorenemonthly average≤ .12 lb/dall year001
Fluorenedaily maximum≤ .3 lb/dall year001
Hexachlorobutadienemonthly average≤ .89 lb/dall year001
Hexachlorobutadienedaily maximum≤ 2.39 lb/dall year001
Hexachloroethanemonthly average≤ 1.23 lb/dall year001
Hexachloroethanedaily maximum≤ 4.99 lb/dall year001
Methyl chloride [Chloromethane]monthly average≤ .69 lb/dall year001
Methyl chloride [Chloromethane]daily maximum≤ 1.85 lb/dall year001
Methylene chloridemonthly average≤ .23 lb/dall year001
Methylene chloridedaily maximum≤ 1.07 lb/dall year001
Nitrobenzenemonthly average≤ 14.06 lb/dall year001
Nitrobenzenedaily maximum≤ 40.25 lb/dall year001
Phenanthrenemonthly average≤ .12 lb/dall year001
Phenanthrenedaily maximum≤ .3 lb/dall year001
Pyrenemonthly average≤ .13 lb/dall year001
Pyrenedaily maximum≤ .3 lb/dall year001
Tetrachloroethylenemonthly average≤ .33 lb/dall year001
Tetrachloroethylenedaily maximum≤ 1.03 lb/dall year001
1,1-Dichloroethanemonthly average≤ .14 lb/dall year001
1,1-Dichloroethanedaily maximum≤ .37 lb/dall year001
1,1-Dichloroethylenemonthly average≤ .14 lb/dall year001
1,1-Dichloroethylenedaily maximum≤ .38 lb/dall year001
1,1,1-Trichloroethanemonthly average≤ .14 lb/dall year001
1,1,1-Trichloroethanedaily maximum≤ .37 lb/dall year001
1,1,2-Trichloroethanemonthly average≤ .2 lb/dall year001
1,1,2-Trichloroethanedaily maximum≤ .8 lb/dall year001
Benzo[a]anthracenemonthly average≤ .12 lb/dall year001
Benzo[a]anthracenedaily maximum≤ .3 lb/dall year001
1,2-Dichlorobenzenemonthly average≤ 1.23 lb/dall year001
1,2-Dichlorobenzenedaily maximum≤ 4.99 lb/dall year001
1,2-Dichloropropanemonthly average≤ 1.23 lb/dall year001
1,2-Dichloropropanedaily maximum≤ 4.99 lb/dall year001
trans-1,2-Dichloroethylenemonthly average≤ .16 lb/dall year001
trans-1,2-Dichloroethylenedaily maximum≤ .41 lb/dall year001
1,2,4-Trichlorobenzenemonthly average≤ 1.23 lb/dall year001
1,2,4-Trichlorobenzenedaily maximum≤ 4.99 lb/dall year001
1,3-Dichlorobenzenemonthly average≤ .89 lb/dall year001
1,3-Dichlorobenzenedaily maximum≤ 2.39 lb/dall year001
1,4-Dichlorobenzenemonthly average≤ .89 lb/dall year001
1,4-Dichlorobenzenedaily maximum≤ 2.39 lb/dall year001
2-Nitrophenolmonthly average≤ .41 lb/dall year001
2-Nitrophenoldaily maximum≤ 1.45 lb/dall year001
2,4-Dimethylphenolmonthly average≤ .12 lb/dall year001
2,4-Dimethylphenoldaily maximum≤ .3 lb/dall year001
2,4-Dinitrophenolmonthly average≤ 7.59 lb/dall year001
2,4-Dinitrophenoldaily maximum≤ 26.97 lb/dall year001
4-Nitrophenolmonthly average≤ 1.02 lb/dall year001
4-Nitrophenoldaily maximum≤ 3.62 lb/dall year001
4,6-Dinitro-o-cresolmonthly average≤ .49 lb/dall year001
4,6-Dinitro-o-cresoldaily maximum≤ 1.74 lb/dall year001
Phenolmonthly average≤ .12 lb/dall year001
Phenoldaily maximum≤ .3 lb/dall year001
Naphthalenemonthly average≤ .12 lb/dall year001
Naphthalenedaily maximum≤ .3 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ .6 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 1.62 lb/dall year001
Di-n-butyl phthalatemonthly average≤ .13 lb/dall year001
Di-n-butyl phthalatedaily maximum≤ .27 lb/dall year001
Vinyl chloridemonthly average≤ .61 lb/dall year001
Vinyl chloridedaily maximum≤ 1.08 lb/dall year001
Trichloroethylenemonthly average≤ .16 lb/dall year001
Trichloroethylenedaily maximum≤ .43 lb/dall year001
Hexachlorobenzenemonthly average≤ .62 lb/dall year001
Hexachlorobenzenedaily maximum≤ 1.47 lb/dall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualmonthly average≤ 8.2 lb/dall year001
Chlorine, total residualdaily maximum≤ 13.6 lb/dall year001
1,3-Dichloropropylenemonthly average≤ 1.23 lb/dall year001
1,3-Dichloropropylenedaily maximum≤ 4.99 lb/dall year001
Whole Effluent Toxicity - Retest #3monthly average minimumreport only (pass=0;fail=1)all year001
Whole Effluent Toxicity - Retest #3monthly average minimumreport only (pass=0;fail=1)all year001
Whole Effluent Toxicity - Retest #348-hour minimumreport only (pass=0;fail=1)all year001
Whole Effluent Toxicity - Retest #348-hour minimumreport only (pass=0;fail=1)all year001
pH range excursions, > 60 minutesmonthly total≤ 0 occur/moall year001
pH range excursions, monthly total accummonthly total≤ 446 minall year001
Chloroethanemonthly average≤ .69 lb/dall year001
Chloroethanedaily maximum≤ 1.85 lb/dall year001
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexmonthly average minimumreport only (pass=0;fail=1)all year001
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48-hour minimumreport only (pass=0;fail=1)all year001
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all year001
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (pass=0;fail=1)all year001
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulexmonthly average minimumreport only (%)all year001
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48-hour minimumreport only (%)all year001
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelasmonthly average minimumreport only (%)all year001
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48-hour minimumreport only (%)all year001
Coef Of Var Static Renewal 48Hr Acute D. pulexmaximumreport only (%)all year001
Coef Of Var Static Renewal 48Hr Acute Pimephales promelasmaximumreport only (%)all year001
pHminimumreport only (SU)all year003
pHmaximumreport only (SU)all year003
Oil & Greasedaily maximum≤ 15 mg/Lall year003
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year003
Zinc, total [as Zn]monthly average≤ .4 mg/Lall year003
Zinc, total [as Zn]daily maximum≤ .8 mg/Lall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
pH range excursions, > 60 minutesmonthly total≤ 0 occur/moall year003
pH range excursions, monthly total accummonthly total≤ 446 minall year003
pHinstantaneous minimum≥ 6 SUall year004
pHinstantaneous maximum≤ 9.5 SUall year004
Oil & Greasedaily maximum≤ 15 mg/Lall year004
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year004
Zinc, total [as Zn]monthly averagereport only (mg/L)all year004
Zinc, total [as Zn]daily maximumreport only (mg/L)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
pHinstantaneous minimum≥ 6 SUall year005
pHinstantaneous maximum≤ 9.5 SUall year005
Oil & Greasedaily maximum≤ 15 mg/Lall year005
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year005
pHminimum≥ 6 SUall year101
pHmaximum≤ 9 SUall year101
Solids, total suspendedmonthly average≤ 1.02 mg/dall year101
Solids, total suspendeddaily maximum≤ 1.68 mg/dall year101
Arsenic, total [as As]monthly average≤ .06 lb/dall year101
Arsenic, total [as As]daily maximum≤ .18 lb/dall year101
Lead, total [as Pb]monthly average≤ .0029 lb/dall year101
Lead, total [as Pb]daily maximum≤ .01 lb/dall year101
Zinc, total [as Zn]monthly average≤ .046 lb/dall year101
Zinc, total [as Zn]daily maximum≤ .14 lb/dall year101
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
Methanol, totalmonthly averagereport only (lb/d)all year101
Methanol, totaldaily maximumreport only (lb/d)all year101
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year201
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year201
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year201
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year201

How strict are these limits?

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

Same industry: the 130 Chemicals and Allied Products permits in Louisiana.

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