Jefferson Terminal South LLC — NPDES permit TX0004669: limits, due date and EPA's record

Industrial Organic Chemicals, major discharger, Nederland, Texas. NPDES permit TX0004669, in force until Apr 7, 2029. Last 12 months: over a limit 2 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

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

Period ending	Parameter	Reported	Limit	Over by
October 2025	Cyanide, free [as free], daily maximum	.033 mg/L	≤ .019 mg/L	74%
June 2026	Chloroform, daily maximum	11.48 lb/d	≤ 9.01 lb/d	27%

Limits in force (311)

Parameter	Statistic	Limit	Months	Outfall
Temperature, water deg. fahrenheit	daily average	≤ 108 deg F	all year	001
Temperature, water deg. fahrenheit	daily maximum	≤ 110 deg F	all year	001
BOD, 5-day, 20 deg. C	daily average	≤ 848 lb/d	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 1811 lb/d	all year	001
Oxygen demand, chem. [high level] [COD]	daily average	≤ 4379 lb/d	all year	001
Oxygen demand, chem. [high level] [COD]	daily maximum	≤ 8755 lb/d	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
Solids, total suspended	daily average	≤ 2342 lb/d	all year	001
Solids, total suspended	daily maximum	≤ 6502 lb/d	all year	001
Oil & Grease	daily average	≤ 15 mg/L	all year	001
Oil & Grease	daily maximum	≤ 20 mg/L	all year	001
Nitrogen, ammonia total [as N]	daily average	≤ 163 lb/d	all year	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 359 lb/d	all year	001
Cyanide, free [as free]	daily average	≤ .009 mg/L	all year	001
Cyanide, free [as free]	daily maximum	≤ .019 mg/L	all year	001
Cyanide, total [as CN]	daily average	≤ .13 mg/L	all year	001
Cyanide, total [as CN]	daily maximum	≤ .26 mg/L	all year	001
Chromium, total [as Cr]	daily average	≤ .1 mg/L	all year	001
Chromium, total [as Cr]	daily maximum	≤ .2 mg/L	all year	001
Copper, total [as Cu]	daily average	≤ .024 mg/L	all year	001
Copper, total [as Cu]	daily maximum	≤ .05 mg/L	all year	001
Lead, total [as Pb]	daily average	≤ .153 mg/L	all year	001
Lead, total [as Pb]	daily maximum	≤ .323 mg/L	all year	001
Nickel, total [as Ni]	daily average	≤ .147 mg/L	all year	001
Nickel, total [as Ni]	daily maximum	≤ .311 mg/L	all year	001
Zinc, total [as Zn]	daily average	≤ .236 mg/L	all year	001
Zinc, total [as Zn]	daily maximum	≤ .499 mg/L	all year	001
Dichlorobromomethane	daily average	≤ 3.02 lb/d	all year	001
Dichlorobromomethane	daily maximum	≤ 6.04 lb/d	all year	001
Carbon tetrachloride	daily average	≤ .54 lb/d	all year	001
Carbon tetrachloride	daily maximum	≤ 1.42 lb/d	all year	001
1,2-Dichloroethane	daily average	≤ .74 lb/d	all year	001
1,2-Dichloroethane	daily maximum	≤ 2.36 lb/d	all year	001
Dibromochloromethane	daily average	≤ 3.02 lb/d	all year	001
Dibromochloromethane	daily maximum	≤ 6.04 lb/d	all year	001
Chloroform	daily average	≤ 6.27 lb/d	all year	001
Chloroform	daily maximum	≤ 9.01 lb/d	all year	001
Toluene	daily average	≤ .14 lb/d	all year	001
Toluene	daily maximum	≤ .38 lb/d	all year	001
Benzene	daily average	≤ .26 lb/d	all year	001
Benzene	daily maximum	≤ .67 lb/d	all year	001
Acenaphthylene	daily average	≤ .1 lb/d	all year	001
Acenaphthylene	daily maximum	≤ .25 lb/d	all year	001
Acenaphthene	daily average	≤ .1 lb/d	all year	001
Acenaphthene	daily maximum	≤ .25 lb/d	all year	001
Acrylonitrile	daily average	≤ .47 lb/d	all year	001
Acrylonitrile	daily maximum	≤ 1.18 lb/d	all year	001
Anthracene	daily average	≤ .1 lb/d	all year	001
Anthracene	daily maximum	≤ .25 lb/d	all year	001
Benzo[k]fluoranthene	daily average	≤ .1 lb/d	all year	001
Benzo[k]fluoranthene	daily maximum	≤ .25 lb/d	all year	001
Benzo[a]pyrene	daily average	≤ .18 lb/d	all year	001
Benzo[a]pyrene	daily maximum	≤ .45 lb/d	all year	001
Chlorobenzene	daily average	≤ .53 lb/d	all year	001
Chlorobenzene	daily maximum	≤ 1.4 lb/d	all year	001
Chrysene	daily average	≤ .1 lb/d	all year	001
Chrysene	daily maximum	≤ .25 lb/d	all year	001
Diethyl phthalate	daily average	≤ .28 lb/d	all year	001
Diethyl phthalate	daily maximum	≤ .69 lb/d	all year	001
Dimethyl phthalate	daily average	≤ .1 lb/d	all year	001
Dimethyl phthalate	daily maximum	≤ .24 lb/d	all year	001
Ethylbenzene	daily average	≤ .56 lb/d	all year	001
Ethylbenzene	daily maximum	≤ 1.52 lb/d	all year	001
Fluoranthene	daily average	≤ .11 lb/d	all year	001
Fluoranthene	daily maximum	≤ .29 lb/d	all year	001
Fluorene	daily average	≤ .1 lb/d	all year	001
Fluorene	daily maximum	≤ .25 lb/d	all year	001
Hexachlorobutadiene	daily average	≤ .54 lb/d	all year	001
Hexachlorobutadiene	daily maximum	≤ 1.43 lb/d	all year	001
Hexachloroethane	daily average	≤ .73 lb/d	all year	001
Hexachloroethane	daily maximum	≤ 2.93 lb/d	all year	001
Methyl chloride [Chloromethane]	daily average	≤ .52 lb/d	all year	001
Methyl chloride [Chloromethane]	daily maximum	≤ 1.33 lb/d	all year	001
Methylene chloride	daily average	≤ .19 lb/d	all year	001
Methylene chloride	daily maximum	≤ .74 lb/d	all year	001
Nitrobenzene	daily average	≤ 8.07 lb/d	all year	001
Nitrobenzene	daily maximum	≤ 23.1 lb/d	all year	001
Phenanthrene	daily average	≤ .1 lb/d	all year	001
Phenanthrene	daily maximum	≤ .25 lb/d	all year	001
Pyrene	daily average	≤ .11 lb/d	all year	001
Pyrene	daily maximum	≤ .27 lb/d	all year	001
Tetrachloroethylene	daily average	≤ .22 lb/d	all year	001
Tetrachloroethylene	daily maximum	≤ .67 lb/d	all year	001
1,1-Dichloroethane	daily average	≤ .11 lb/d	all year	001
1,1-Dichloroethane	daily maximum	≤ .3 lb/d	all year	001
1,1-Dichloroethylene	daily average	≤ .1 lb/d	all year	001
1,1-Dichloroethylene	daily maximum	≤ .25 lb/d	all year	001
1,1,1-Trichloroethane	daily average	≤ .11 lb/d	all year	001
1,1,1-Trichloroethane	daily maximum	≤ .29 lb/d	all year	001
1,1,2-Trichloroethane	daily average	≤ .15 lb/d	all year	001
1,1,2-Trichloroethane	daily maximum	≤ .53 lb/d	all year	001
Benzo[a]anthracene	daily average	≤ .1 lb/d	all year	001
Benzo[a]anthracene	daily maximum	≤ .25 lb/d	all year	001
1,2-Dichlorobenzene	daily average	≤ .81 lb/d	all year	001
1,2-Dichlorobenzene	daily maximum	≤ 3.08 lb/d	all year	001
1,2-Dichloropropane	daily average	≤ .92 lb/d	all year	001
1,2-Dichloropropane	daily maximum	≤ 3.18 lb/d	all year	001
trans-1,2-Dichloroethylene	daily average	≤ .12 lb/d	all year	001
trans-1,2-Dichloroethylene	daily maximum	≤ .31 lb/d	all year	001
1,2,4-Trichlorobenzene	daily average	≤ .8 lb/d	all year	001
1,2,4-Trichlorobenzene	daily maximum	≤ 3.05 lb/d	all year	001
1,3-Dichlorobenzene	daily average	≤ .55 lb/d	all year	001
1,3-Dichlorobenzene	daily maximum	≤ 1.43 lb/d	all year	001
1,4-Dichlorobenzene	daily average	≤ .53 lb/d	all year	001
1,4-Dichlorobenzene	daily maximum	≤ 1.4 lb/d	all year	001
2-Chlorophenol	daily average	≤ .16 lb/d	all year	001
2-Chlorophenol	daily maximum	≤ .49 lb/d	all year	001
2-Nitrophenol	daily average	≤ .29 lb/d	all year	001
2-Nitrophenol	daily maximum	≤ .93 lb/d	all year	001
2,4-Dichlorophenol	daily average	≤ .2 lb/d	all year	001
2,4-Dichlorophenol	daily maximum	≤ .56 lb/d	all year	001
2,4-Dimethylphenol	daily average	≤ .09 lb/d	all year	001
2,4-Dimethylphenol	daily maximum	≤ .22 lb/d	all year	001
2,4-Dinitrotoluene	daily average	≤ .57 lb/d	all year	001
2,4-Dinitrotoluene	daily maximum	≤ 1.43 lb/d	all year	001
2,4-Dinitrophenol	daily average	≤ 4.43 lb/d	all year	001
2,4-Dinitrophenol	daily maximum	≤ 15.6 lb/d	all year	001
2,6-Dinitrotoluene	daily average	≤ 1.28 lb/d	all year	001
2,6-Dinitrotoluene	daily maximum	≤ 3.21 lb/d	all year	001
4-Nitrophenol	daily average	≤ .68 lb/d	all year	001
4-Nitrophenol	daily maximum	≤ 2.24 lb/d	all year	001
4,6-Dinitro-o-cresol	daily average	≤ .39 lb/d	all year	001
4,6-Dinitro-o-cresol	daily maximum	≤ 1.39 lb/d	all year	001
Phenol	daily average	≤ .09 lb/d	all year	001
Phenol	daily maximum	≤ .21 lb/d	all year	001
Naphthalene	daily average	≤ .1 lb/d	all year	001
Naphthalene	daily maximum	≤ .25 lb/d	all year	001
Di[2-ethylhexyl] phthalate [DEHP]	daily average	≤ .49 lb/d	all year	001
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ 1.32 lb/d	all year	001
Di-n-butyl phthalate	daily average	≤ .11 lb/d	all year	001
Di-n-butyl phthalate	daily maximum	≤ .24 lb/d	all year	001
Vinyl chloride	daily average	≤ .5 lb/d	all year	001
Vinyl chloride	daily maximum	≤ 1 lb/d	all year	001
Trichloroethylene	daily average	≤ .12 lb/d	all year	001
Trichloroethylene	daily maximum	≤ .32 lb/d	all year	001
Hexachlorobenzene	daily average	≤ .013 lb/d	all year	001
Hexachlorobenzene	daily maximum	≤ .028 lb/d	all year	001
Flow, in conduit or thru treatment plant	daily average	≤ 9.99 MGD	all year	001
Flow, in conduit or thru treatment plant	daily maximum	≤ 39 MGD	all year	001
1,3-Dichloropropylene	daily average	≤ .74 lb/d	all year	001
1,3-Dichloropropylene	daily maximum	≤ 2.91 lb/d	all year	001
Mercury, total [as Hg]	daily average	≤ .071 lb/d	all year	001
Mercury, total [as Hg]	daily maximum	≤ .151 lb/d	all year	001
3,4-Benzofluoranthene	daily average	≤ .1 lb/d	all year	001
3,4-Benzofluoranthene	daily maximum	≤ .26 lb/d	all year	001
Chloroethane	daily average	≤ .54 lb/d	all year	001
Chloroethane	daily maximum	≤ 1.44 lb/d	all year	001
pH	minimum	≥ 6 SU	all year	002
pH	maximum	≤ 9 SU	all year	002
Oil & Grease	daily maximum	≤ 15 mg/L	all year	002
Carbon, tot organic [TOC]	daily maximum	≤ 55 mg/L	all year	002
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	002
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	002
pH	minimum	≥ 6 SU	all year	004
pH	maximum	≤ 9 SU	all year	004
Carbon, tot organic [TOC]	daily maximum	≤ 55 mg/L	all year	004
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	004
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	004
pH	minimum	≥ 6 SU	all year	005
pH	maximum	≤ 9 SU	all year	005
Oil & Grease	daily maximum	≤ 15 mg/L	all year	005
Carbon, tot organic [TOC]	daily maximum	≤ 55 mg/L	all year	005
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	005
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	005
pH	minimum	≥ 6 SU	all year	008
pH	maximum	≤ 9 SU	all year	008
Oil & Grease	daily maximum	≤ 15 mg/L	all year	008
Carbon, tot organic [TOC]	daily maximum	≤ 55 mg/L	all year	008
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	008
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	008
pH	minimum	≥ 6 SU	all year	011
pH	maximum	≤ 9 SU	all year	011
Oil & Grease	daily maximum	≤ 15 mg/L	all year	011
Carbon, tot organic [TOC]	daily maximum	≤ 55 mg/L	all year	011
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	011
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	011
pH	minimum	≥ 6 SU	all year	015
pH	maximum	≤ 9 SU	all year	015
Oil & Grease	daily maximum	≤ 15 mg/L	all year	015
Carbon, tot organic [TOC]	daily maximum	≤ 55 mg/L	all year	015
Carbon tetrachloride	daily maximum	report only (mg/L)	all year	015
Chloroform	daily maximum	report only (mg/L)	all year	015
trans-1,2-Dichloroethylene	daily maximum	report only (mg/L)	all year	015
Vinyl chloride	daily maximum	report only (mg/L)	all year	015
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	015
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	015
pH	minimum	≥ 6 SU	all year	018
pH	maximum	≤ 9 SU	all year	018
Carbon, tot organic [TOC]	daily maximum	≤ 55 mg/L	all year	018
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	018
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	018
pH	minimum	≥ 6 SU	all year	020
pH	maximum	≤ 9 SU	all year	020
Carbon, tot organic [TOC]	daily maximum	≤ 55 mg/L	all year	020
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	020
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	020
pH	minimum	≥ 6 SU	all year	022
pH	maximum	≤ 9 SU	all year	022
Oil & Grease	daily maximum	≤ 15 mg/L	all year	022
Carbon, tot organic [TOC]	daily maximum	≤ 55 mg/L	all year	022
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	022
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	022
BOD, 5-day, 20 deg. C	daily maximum	≤ 65 mg/L	all year	101
pH	minimum	≥ 6 SU	all year	101
pH	maximum	≤ 9 SU	all year	101
Solids, total suspended	daily maximum	≤ 65 mg/L	all year	101
Cyanide, total [as CN]	daily maximum	≤ 1.2 mg/L	all year	101
Chromium, total [as Cr]	daily average	≤ 1.11 mg/L	all year	101
Chromium, total [as Cr]	daily maximum	≤ 2.77 mg/L	all year	101
Copper, total [as Cu]	daily average	≤ 1.45 mg/L	all year	101
Copper, total [as Cu]	daily maximum	≤ 3.38 mg/L	all year	101
Nickel, total [as Ni]	daily average	≤ 1.69 mL/L	all year	101
Nickel, total [as Ni]	daily maximum	≤ 3.98 mL/L	all year	101
Zinc, total [as Zn]	daily average	≤ 1.05 mg/L	all year	101
Zinc, total [as Zn]	daily maximum	≤ 2.61 mg/L	all year	101
Carbon tetrachloride	daily maximum	≤ .038 mg/L	all year	101
1,2-Dichloroethane	daily maximum	≤ .211 mg/L	all year	101
Chloroform	daily maximum	≤ .046 mg/L	all year	101
Benzene	daily maximum	≤ .136 mg/L	all year	101
Acrylonitrile	daily maximum	≤ .242 mg/L	all year	101
Nitrobenzene	daily maximum	≤ .068 mg/L	all year	101
Tetrachloroethylene	daily maximum	≤ .056 mg/L	all year	101
4-Nitrophenol	daily maximum	≤ .124 mg/L	all year	101
Phenol	daily maximum	≤ .026 mg/L	all year	101
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ .279 mg/L	all year	101
Vinyl chloride	daily maximum	≤ .268 mg/L	all year	101
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	101
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	101
Chlorine, total residual	monthly minimum	≥ .5 mg/L	all year	101
Chlorine, total residual	monthly maximum	report only (mg/L)	all year	101
Enterococci	daily average	≤ 35 CFU/100mL	all year	101
Enterococci	daily maximum	≤ 104 CFU/100mL	all year	101
BOD, 5-day, 20 deg. C	daily maximum	≤ 92 mg/L	all year	201
Solids, total suspended	daily maximum	≤ 159 mg/L	all year	201
Cyanide, total [as CN]	daily maximum	≤ 1.2 mg/L	all year	201
Chromium, total [as Cr]	daily maximum	≤ 2.77 mg/L	all year	201
Copper, total [as Cu]	daily maximum	≤ 3.38 mg/L	all year	201
Lead, total [as Pb]	daily maximum	≤ .69 mg/L	all year	201
Nickel, total [as Ni]	daily maximum	≤ 3.98 mL/L	all year	201
Zinc, total [as Zn]	daily maximum	≤ 2.61 mg/L	all year	201
Carbon tetrachloride	daily maximum	≤ .38 mg/L	all year	201
1,2-Dichloroethane	daily maximum	≤ .574 mg/L	all year	201
Chloroform	daily maximum	≤ .325 mg/L	all year	201
Benzene	daily maximum	≤ .134 mg/L	all year	201
Acrylonitrile	daily maximum	≤ .232 mg/L	all year	201
Nitrobenzene	daily maximum	≤ 6.402 mg/L	all year	201
Tetrachloroethylene	daily maximum	≤ .164 mg/L	all year	201
4-Nitrophenol	daily maximum	≤ .576 mg/L	all year	201
Phenol	daily maximum	≤ .47 mg/L	all year	201
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ .258 mg/L	all year	201
Vinyl chloride	daily maximum	≤ .172 mg/L	all year	201
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	201
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	201
BOD, 5-day, 20 deg. C	daily maximum	≤ 80 mg/L	all year	301
Solids, total suspended	daily maximum	≤ 149 mg/L	all year	301
Nitrogen, ammonia total [as N]	daily maximum	≤ 222 mg/L	all year	301
Chromium, total [as Cr]	daily maximum	≤ 2.77 mg/L	all year	301
Copper, total [as Cu]	daily maximum	≤ 3.38 mg/L	all year	301
Lead, total [as Pb]	daily maximum	≤ .69 mg/L	all year	301
Nickel, total [as Ni]	daily maximum	≤ 3.98 mL/L	all year	301
Zinc, total [as Zn]	daily maximum	≤ 2.61 mg/L	all year	301
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	301
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	301
BOD, 5-day, 20 deg. C	daily maximum	≤ 92 mg/L	all year	401
Solids, total suspended	daily maximum	≤ 159 mg/L	all year	401
Cyanide, total [as CN]	daily maximum	≤ 1.2 mg/L	all year	401
Chromium, total [as Cr]	daily maximum	≤ 2.77 mg/L	all year	401
Copper, total [as Cu]	daily maximum	≤ 3.38 mg/L	all year	401
Lead, total [as Pb]	daily maximum	≤ .69 mg/L	all year	401
Nickel, total [as Ni]	daily maximum	≤ 3.98 mL/L	all year	401
Zinc, total [as Zn]	daily maximum	≤ 2.61 mg/L	all year	401
Carbon tetrachloride	daily maximum	≤ .38 mg/L	all year	401
1,2-Dichloroethane	daily maximum	≤ .574 mg/L	all year	401
Chloroform	daily maximum	≤ .325 mg/L	all year	401
Benzene	daily maximum	≤ .134 mg/L	all year	401
Acrylonitrile	daily maximum	≤ .232 mg/L	all year	401
Nitrobenzene	daily maximum	≤ 6.402 mg/L	all year	401
Tetrachloroethylene	daily maximum	≤ .164 mg/L	all year	401
4-Nitrophenol	daily maximum	≤ .576 mg/L	all year	401
Phenol	daily maximum	≤ .47 mg/L	all year	401
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ .258 mg/L	all year	401
Vinyl chloride	daily maximum	≤ .172 mg/L	all year	401
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	401
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	401
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)	7-day minimum	report only (pass=0;fail=1)	all year	TX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina	7-day minimum	report only (pass=0;fail=1)	all year	TX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	7-day minimum	report only (%)	all year	TX1
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	monthly average minimum	report only (%)	all year	TX1
NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina	7-day minimum	report only (%)	all year	TX1
NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina	monthly average minimum	report only (%)	all year	TX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	7-day minimum	report only (%)	all year	TX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	monthly average minimum	report only (%)	all year	TX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina	7-day minimum	report only (%)	all year	TX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina	monthly average minimum	report only (%)	all year	TX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	7-day minimum	report only (pass=0;fail=1)	all year	TX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina	7-day minimum	report only (pass=0;fail=1)	all year	TX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	7-day minimum	report only (%)	all year	TX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	monthly average minimum	report only (%)	all year	TX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina	7-day minimum	report only (%)	all year	TX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina	monthly average minimum	report only (%)	all year	TX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)	7-day minimum	report only (%)	all year	TX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)	monthly average minimum	report only (%)	all year	TX1
LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina	7-day minimum	report only (%)	all year	TX1
LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina	monthly average minimum	report only (%)	all year	TX1
LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)	single sample	report only (pass=0;fail=1)	all year	TXA
LC50 Pass/Fail Static 24Hr Acute Menidia beryllina	single grab sample	report only (pass=0;fail=1)	all year	TXA

New limits from May 1, 2027

Parameter	New limit	New or tighter	Median, last 12 months	× new limit
Benzo[a]anthracene, daily average	0.071 lb/d	tighter	—	—
Benzo[a]anthracene, daily maximum	0.15 lb/d	tighter	—	—
Benzo[a]pyrene, daily average	0.0071 lb/d	tighter	—	—
Benzo[a]pyrene, daily maximum	0.015 lb/d	tighter	—	—
Hexachlorobenzene, daily average	0.002 lb/d	tighter	—	—
Hexachlorobenzene, daily maximum	0.004 lb/d	tighter	—	—

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/TX0004669 · MCP: https://passage-data.com/mcp