Texas cleanup levels

The Texas Commission on Environmental Quality publishes cleanup levels for 684 chemicals with a CAS number in its Texas Risk Reduction Program Tier 1 Protective Concentration Levels, last revised February 6, 2025. Each chemical below has a page showing its values as the agency prints them.

24 rows of the agency's table carry no valid CAS number and have no page here.

684Chemicals

3Tables

February 6, 2025Last revised

Table 1: Tier 1 Residential Soil PCLs
Table 2: Tier 1 Commercial/Industrial Soil PCLs
Table 3: Tier 1 Groundwater PCLs - Residential and Commercial/Industrial

Acenaphthene 83-32-9
Acenaphthylene 208-96-8
Acetaldehyde 75-07-0
Acetate, 2-ethoxyethanol 111-15-9
Acetate, isoamyl 123-92-2
Acetate, isobutyl 110-19-0
Acetate, sec-butyl 105-46-4
Acetic acid 64-19-7
Acetone (2-propanone) 67-64-1
Acetone cyanohydrin 75-86-5
Acetonitrile 75-05-8
Acetophenone 98-86-2
Acetylaminofluorene, 2- 53-96-3
Acifluorfen, sodium 62476-59-9
Acridine 260-94-6
Acrolein 107-02-8
Acrylamide 79-06-1
Acrylic acid 79-10-7
Acrylonitrile 107-13-1
Adipic acid (hexanedioic acid) 124-04-9
Alachlor 15972-60-8
Aldicarb 116-06-3
Aldicarb sulfone 1646-88-4
Aldrin 309-00-2
Allyl alcohol 107-18-6
Allyl chloride 107-05-1
Aluminum 7429-90-5
Ametryn 834-12-8
Amino-2,6-dinitrotoluene, 4- 19406-51-0
Amino-4,6-dinitrotoluene, 2- 35572-78-2
Aminobiphenyl, 4- (1,1-biphenyl-4-amine) 92-67-1
Aminopyridine, 4- 504-24-5
Ammonia 7664-41-7
Aniline 62-53-3
Anthracene 120-12-7
Anthraquinone, 9,10- 84-65-1
Antimony 7440-36-0
Aramite 140-57-8
Arsenic 7440-38-2
Arsine 7784-42-1
Atrazine 1912-24-9
Azinphos-methyl (guthion) 86-50-0
Azobenzene 103-33-3
Barium 7440-39-3
Bayleton 43121-43-3
Benefin (benfluralin) 1861-40-1
Benomyl 17804-35-2
Benz-a-anthracene 56-55-3
Benzaldehyde 100-52-7
Benzene 71-43-2
Benzenedicarbonitrile, 1,3- 626-17-5
Benzenedicarboxylic acid, 1,2-disodecyl ester 26761-40-0
Benzenethiol 108-98-5
Benzidine 92-87-5
Benzo-a-pyrene 50-32-8
Benzo-b-fluoranthene 205-99-2
Benzo-e-pyrene 192-97-2
Benzo-g,h,i-perylene 191-24-2
Benzo-j-fluoranthene 205-82-3
Benzo-k-fluoranthene 207-08-9
Benzoic acid 65-85-0
Benzophenone 119-61-9
Benzotrichloride 98-07-7
Benzoyl peroxide 94-36-0
Benzyl alcohol 100-51-6
Benzyl chloride 100-44-7
Benzyl dichloride 98-87-3
Beryllium 7440-41-7
Biphenyl, 1,1- 92-52-4
Biphenyl, 1,1'-, 2-phenoxy- 6738-04-1
Biquinoline, 2,2'- 119-91-5
Bis (2-chloro-1-methylethyl) ether 108-60-1
Bis (2-chloroethoxy) methane 111-91-1
Bis (2-chloroethyl) ether 111-44-4
Bis (2-chloromethyl) ether 542-88-1
Bis (2-ethyl-hexyl) phthalate 117-81-7
Bismuth 7440-69-9
Bisphenol A 80-05-7
Boron 7440-42-8
Bromacil 314-40-9
Bromo-2-chloroethane, 1- 107-04-0
Bromobenzene 108-86-1
Bromodichloromethane 75-27-4
Bromoform 75-25-2
Bromomethane 74-83-9
Bromophenyl phenylether, 4- 101-55-3
Butadiene, 1,3- 106-99-0
Butadiene, 2-methyl-1,3- (isoprene) 78-79-5
Butanal (butyraldehyde) 123-72-8
Butane, 2,3-dimethyl- 79-29-8
Butanoic acid (butyric acid) 107-92-6
Butanol, 2- 78-92-2
Butanol, 2-methyl-1- 137-32-6
Butanol, 2-methyl-2- 75-85-4
Butanol, n- 71-36-3
Butene, 1- 106-98-9
Butene, cis-2- 590-18-1
Butene, trans-2- 624-64-6
Butoxy ethanol, 2- (Ethylene glycol monobutyl ether; EGBE) 111-76-2
Butyl acetate 123-86-4
Butyl acrylate 141-32-2
Butyl benzyl phthalate 85-68-7
Butyl ether, n- (dibutyl ether) 142-96-1
Butyl methacrylate 97-88-1
Butylate 2008-41-5
Butylbenzene, n- 104-51-8
Butylbenzene, sec- 135-98-8
Butylbenzene, tert- 98-06-6
Cacodylic acid 75-60-5
Cadmium 7440-43-9
Calcium 7440-70-2
Caprolactam 105-60-2
Captan 133-06-2
Carbaryl 63-25-2
Carbazole 86-74-8
Carbofuran 1563-66-2
Carbon disulfide 75-15-0
Carbon tetrachloride 56-23-5
Carbophenothion 786-19-6
Carbosulfan 55285-14-8
Carboxin 5234-68-4
Chloral 75-87-6
Chloral hydrate (1,1-ethanediol, 2,2,2-trichloro-) 302-17-0
Chloramben (amiben; 3-amino-2,5-dichlorobenzoic acid) 133-90-4
Chlordane (technical) 12789-03-6
Chlordane, cis- (alpha chlordane) 5103-71-9
Chlordane, trans- (gamma chordane) 5103-74-2
Chlorfenvinphos 470-90-6
Chloride 16887-00-6
Chlorine 7782-50-5
Chloro-1,3-butadiene, 2- 126-99-8
Chloro-2-propanol, 1- 127-00-4
Chloro-3-methylphenol, 4- 59-50-7
Chloroaniline, p- 106-47-8
Chlorobenzene 108-90-7
Chlorobenzilate 510-15-6
Chlorobromomethane (bromochloromethane) 74-97-5
Chlorodifluoromethane 75-45-6
Chloroethane (ethyl chloride) 75-00-3
Chloroethanol, 2- 107-07-3
Chloroethoxy ethene, 2- (2-chloroethylvinylether) 110-75-8
Chloroform 67-66-3
Chlorohexane, 1- 544-10-5
Chloromethane (methyl chloride) 74-87-3
Chloronaphthalene, 1- (Chloronaphthalene, alpha-) 90-13-1
Chloronaphthalene, 2- (chloronaphthalene, beta) 91-58-7
Chloronitrobenzene, p- (1-chloro-4-nitrobenzene) 100-00-5
Chlorophenol, 2- 95-57-8
Chlorophenol, 3- 108-43-0
Chlorophenol, 4- 106-48-9
Chlorophenyl phenylether, 4- 7005-72-3
Chloropropane, 2- 75-29-6
Chlorothalonil 1897-45-6
Chlorotoluene, o- (2-chlorotoluene) 95-49-8
Chlorotoluene, p- (4-chlorotoluene) 106-43-4
Chlorpyrifos 2921-88-2
Chromium (III) 16065-83-1
Chromium (total) 7440-47-3
Chromium (VI) 18540-29-9
Chrysene 218-01-9
Cobalt 7440-48-4
Copolymer acrylamide 69418-26-4
Copper 7440-50-8
Coronene 191-07-1
Coumaphos 56-72-4
Cresol 1319-77-3
Cresol, m- (3-methylphenol) 108-39-4
Cresol, o- (2-methylphenol) 95-48-7
Cresol, p- (4-methylphenol) 106-44-5
Crotonaldehyde 123-73-9
Cumene (isopropylbenzene) 98-82-8
Cyanazine 21725-46-2
Cyanide 57-12-5
Cyanogen 460-19-5
Cycloate 1134-23-2
Cyclohexane 110-82-7
Cyclohexanol 108-93-0
Cyclohexanone 108-94-1
Cyclohexene, 1-methanol-3- 1679-51-2
Cyclohexene, 4-vinyl-1- 100-40-3
Cyclopentane 287-92-3
Cyclopentane, methyl- 96-37-7
Cyclopentene 142-29-0
Cyclotetramethylenetetranitramine (HMX) 2691-41-0
Cyclotrimethylenetrinitramine (RDX) 121-82-4
Cymene (isopropyltoluene) 99-87-6
Cymoxanil 57966-95-7
Dacthal (DCPA) 1861-32-1
Dalapon, sodium salt (2,2-dichloropropanoic acid) 75-99-0
DDD 72-54-8
DDE 72-55-9
DDT 50-29-3
Demeton 8065-48-3
Desethylatrazine 6190-65-4
Di-n-butyl phthalate 84-74-2
Di-n-octyl phthalate 117-84-0
Diacetone alcohol (4-hydroxy-4-methyl-2-pentanone) 123-42-2
Diallate 2303-16-4
Diazinon 333-41-5
Dibenz-a,h-anthracene 53-70-3
Dibenz(a,h)acridine 226-36-8
Dibenz(a,j)acridine 224-42-0
Dibenzo(a,e)pyrene 192-65-4
Dibenzo(a,h)pyrene 189-64-0
Dibenzo(a,i)pyrene 189-55-9
Dibenzofuran 132-64-9
Dibenzothiophene 132-65-0
Dibromo-3-chloropropane, 1,2- 96-12-8
Dibromochloromethane (chlorodibromomethane) 124-48-1
Dibromofluoromethane 1868-53-7
Dicamba 1918-00-9
Dichlormid 37764-25-3
Dichloro-2-butene, 1,4- 764-41-0
Dichloro-2-butene, 1,4- trans 110-57-6
Dichlorobenzene, 1,2- 95-50-1
Dichlorobenzene, 1,3- 541-73-1
Dichlorobenzene, 1,4- 106-46-7
Dichlorobenzidine, 3,3- 91-94-1
Dichlorobutane, 2,3- 7581-97-7
Dichlorodifluoromethane 75-71-8
Dichloroethane, 1,1- 75-34-3
Dichloroethane, 1,2- 107-06-2
Dichloroethylene, 1,1- 75-35-4
Dichloroethylene, cis-1,2- 156-59-2
Dichloroethylene, trans-1,2 156-60-5
Dichlorofluoromethane 75-43-4
Dichlorophenol, 2,3- 576-24-9
Dichlorophenol, 2,4- 120-83-2
Dichlorophenol, 2,5- 583-78-8
Dichlorophenol, 2,6- 87-65-0
Dichlorophenol, 3,4- 95-77-2
Dichlorophenol, 3,5- 591-35-5
Dichlorophenoxy, 2,4- butyric acid, 4- (2,4-DB) 94-82-6
Dichlorophenoxyacetic acid, 2,4- (2,4-D) 94-75-7
Dichloroprop (2-(2,4-dichlorophenoxy) propanoic acid) 120-36-5
Dichloropropane, 1,2- 78-87-5
Dichloropropane, 1,3- 142-28-9
Dichloropropane, 2,2- 594-20-7
Dichloropropanol, 2,3- 616-23-9
Dichloropropene, 1,1- 563-58-6
Dichloropropene, 1,3- (mixed isomers) 542-75-6
Dichloropropene, cis 1,3- 10061-01-5
Dichloropropene, trans 1,3- 10061-02-6
Dichlorvos 62-73-7
Dicrotophos (bidrin) 141-66-2
Dicyclopentadiene 77-73-6
Dieldrin 60-57-1
Diethanolamine 111-42-2
Diethyl phthalate 84-66-2
Diethyldithiocarbamate, sodium salt 148-18-5
Diethylene glycol 111-46-6
Diethylene glycol monobutyl ether 112-34-5
Diethylhexyl adipate 103-23-1
Diethylstilbestrol 56-53-1
Diisobutylene (trimethyl-1-pentene, 2,4,4-) 107-39-1
Diisopropyl ether (2,2'-oxybis-propane) 108-20-3
Diisopropylbenzene, p- 100-18-5
Dimethenamid 87674-68-8
Dimethoate 60-51-5
Dimethoxybenzidine, 3,3'- 119-90-4
Dimethyl phenol, 2,4- 105-67-9
Dimethyl-2-nitrobenzene, 1,3- 81-20-9
Dimethyl-3-nitrobenzene, 1,2- 83-41-0
Dimethyl-4-nitrobenzene, 1-2- 99-51-4
Dimethyl-5-nitrobenzene, 1,3- 99-12-7
Dimethylaminoazobenzene, p- 60-11-7
Dimethylbenz-a-anthracene, 7,12- 57-97-6
Dimethylbenzidine, 3,3'- 119-93-7
Dimethylformamide, N,N- 68-12-2
Dimethylnaphthalene, 1,3- 575-41-7
Dimethylphenethylamine, alpha, alpha- 122-09-8
Dimethylphthalate 131-11-3
Dinitro-2-methylphenol, 4,6- (dinitro-o-cresol, 4, 6-) 534-52-1
Dinitrobenzene, 1,3- (dinitrobenzene, 2,4-) 99-65-0
Dinitrobenzene, 1,4- 100-25-4
Dinitrophenol, 2,4- 51-28-5
Dinitrophenol, 2,5- 329-71-5
Dinitrotoluene, 2,4- 121-14-2
Dinitrotoluene, 2,6- 606-20-2
Dinoseb 88-85-7
Dioxane 1,4- 123-91-1
Dioxin (as 2,3,7,8-TCDD toxicity equivalent quotients (TEQs)) 1746-01-6
Diphenyl ether 101-84-8
Diphenylamine 122-39-4
Diphenylhydrazine, 1,2- 122-66-7
Dipropylene glycol 110-98-5
Diquat 85-00-7
Disodium iminodiacetate (iminodiacetic acid, disodium salt) 142-73-4
Disulfoton 298-04-4
Diuron 330-54-1
Dodecylphenol, 4- 104-43-8
Endosulfan 115-29-7
Endosulfan I 959-98-8
Endosulfan II 33213-65-9
Endosulfan sulfate 1031-07-8
Endothall 145-73-3
Endrin 72-20-8
Endrin aldehyde 7421-93-4
Endrin ketone 53494-70-5
Epichlorohydrin 106-89-8
EPN (o-ethyl o-(4-nitrophenyl)phenylphosphonothioate) 2104-64-5
Esfenvalerate 66230-04-4
Ethalfluralin (sonolan) 55283-68-6
Ethanol 64-17-5
Ethanol, 2-(2-aminoethoxy)- 929-06-6
Ethanol, 2-(2-ethoxyethoxy)- 111-90-0
Ethanol, 2-(methylamino)- 109-83-1
Ethanol, 2-amino- 141-43-5
Ethion 563-12-2
Ethoprop 13194-48-4
Ethoxy ethanol, 2- 110-80-5
Ethyl acetate 141-78-6
Ethyl acrylate 140-88-5
Ethyl benzene 100-41-4
Ethyl dipropylthiocarbamate, S- 759-94-4
Ethyl ether 60-29-7
Ethyl methacrylate 97-63-2
Ethyl methanesulfonate 62-50-0
Ethyl tert-butyl ether (2-ethyl-2-ethoxypropane) 637-92-3
Ethyl-1-hexanol, 2- 104-76-7
Ethyl-2-hexenal, 2- 645-62-5
Ethyl-2-methyl benzene, 1- 611-14-3
Ethyl-4-methyl benzene, 1- 622-96-8
Ethylene 74-85-1
Ethylene dibromide (dibromoethane, 1,2- ) 106-93-4
Ethylene glycol 107-21-1
Ethylene oxide 75-21-8
Ethylene thiourea 96-45-7
Ethylenediamine 107-15-3
Ethylenimine 151-56-4
Ethylhexyl acrylate, 2- 103-11-7
Famphur 52-85-7
Fensulfothion 115-90-2
Fenthion 55-38-9
Fenuron 101-42-8
Fluoranthene 206-44-0
Fluorene 86-73-7
Fluorine (soluble fluoride) 7782-41-4
Fluorochloridone 61213-25-0
Fonofos 944-22-9
Formaldehyde 50-00-0
Formic acid 64-18-6
Furan 110-00-9
Furfural 98-01-1
Glycidylaldehyde 765-34-4
Glyphosate 1071-83-6
Heptachlor 76-44-8
Heptachlor epoxide 1024-57-3
Heptane, n- 142-82-5
Heptanoic acid, n- 111-14-8
Hexachlorobenzene 118-74-1
Hexachlorobutadiene 87-68-3
Hexachlorocyclohexane, alpha (alpha-BHC) 319-84-6
Hexachlorocyclohexane, beta (beta-BHC) 319-85-7
Hexachlorocyclohexane, delta (delta-BHC) 319-86-8
Hexachlorocyclohexane, gamma (lindane; gamma-BHC) 58-89-9
Hexachlorocyclohexane, techn (technical-BHC) 608-73-1
Hexachlorocyclopentadiene 77-47-4
Hexachloroethane 67-72-1
Hexachlorophene 70-30-4
Hexachloropropylene 1888-71-7
Hexanal, 2-ethyl- 123-05-7
Hexane, n- 110-54-3
Hexanediamine, 1,6- 124-09-4
Hexanedinitrile 111-69-3
Hexanediol, 1,6- 629-11-8
Hexanoic acid 142-62-1
Hexanone, 2- 591-78-6
Hexazinone 51235-04-2
Hexene, 1- 592-41-6
Hexene, cis-2- 7688-21-3
Hexylene glycol (2-methyl-2,4-pentanediol) 107-41-5
Hydrazine 302-01-2
Hydrocaproic acid, 6- (6-hydroxyhexanoic acid) 1191-25-9
Hydrogen chloride (hydrochloric acid) 7647-01-0
Hydroquinone 123-31-9
Indene 95-13-6
Indeno-1,2,3-cd-pyrene 193-39-5
Iron 7439-89-6
Isoamyl alcohol 123-51-3
Isobutyl alcohol 78-83-1
Isobutylene (2-methyl-1-propene) 115-11-7
Isobutyric acid (2-methylpropanoic acid) 79-31-2
Isodecanol 25339-17-7
Isodrin 465-73-6
Isopentane 78-78-4
Isophorone 78-59-1
Isopropyl acetate 108-21-4
Isopropyl alcohol 67-63-0
Isosafrole 120-58-1
Kelthane (dicofol) 115-32-2
Kepone (chlordecone) 143-50-0
Lead (inorganic) 7439-92-1
Leptophos 21609-90-5
Limonene, d- 5989-27-5
Lithium 7439-93-2
Magnesium 7439-95-4
Malathion 121-75-5
Maleic anhydride 108-31-6
Maleic hydrazide 123-33-1
Malononitrile 109-77-3
Mancozeb 8018-01-7
Manganese 7439-96-5
MCPA (4-(chloro-2-methylphenoxy) acetic acid) 94-74-6
MCPP (2-(4-chloro-2-methylphenoxy) propanoic acid) 93-65-2
Mercury (pH = 4.9); Mercury (pH=6.8) 7439-97-6
Merphos 150-50-5
Methacrylic acid (2-methyl-2-propenoic acid) 79-41-4
Methacrylonitrile 126-98-7
Methanol 67-56-1
Methapyrilene 91-80-5
Methomyl 16752-77-5
Methoxychlor 72-43-5
Methoxyethanol, 2- 109-86-4
Methyl acetate (acetic acid, methyl ester) 79-20-9
Methyl acrylate 96-33-3
Methyl amyl ketone (2-heptanone) 110-43-0
Methyl chrysene, 1- 3351-28-8
Methyl chrysene, 2- 3351-32-4
Methyl chrysene, 6- 1705-85-7
Methyl cyclohexane 108-87-2
Methyl ethyl ketone (2-butanone) 78-93-3
Methyl iodide (iodomethane) 74-88-4
Methyl isobutyl ketone (4-methyl-2-pentanone) 108-10-1
Methyl mercury 22967-92-6
Methyl methacrylate 80-62-6
Methyl methanesulfonate 66-27-3
Methyl parathion 298-00-0
Methyl-1-butene, 2- 563-46-2
Methyl-1-propanal, 2- (isobutyraldehyde) 78-84-2
Methyl-2-butene, 2- 513-35-9
Methyl-2-pentenal, 2- 623-36-9
Methylcholanthrene, 3- 56-49-5
Methylene bromide (dibromomethane) 74-95-3
Methylene chloride (dichloromethane) 75-09-2
Methylene-bis (2-chloroaniline) 4,4'- 101-14-4
Methylmecury hydroxide 1184-57-2
Methylnaphthalene, 1- 90-12-0
Methylnaphthalene, 2- 91-57-6
Methylpyrrolidone, N- 872-50-4
Methylstyrene, alpha- 98-83-9
Methyltetrahydrofuran, 2- 96-47-9
Methyltetrahydropyran, 2- 10141-72-7
Metolachlor 51218-45-2
Metribuzin 21087-64-9
Mirex 2385-85-5
Molinate 2212-67-1
Molybdenum 7439-98-7
Monocrotophos 2157-98-4
Morpholine 110-91-8
Morpholine, N-butyl- 1005-67-0
MTBE (methyl tert-butyl ether) 1634-04-4
Naled 300-76-5
Naphthalene 91-20-3
Naphthoquinone, 1,4- 130-15-4
Naphthylamine, 1- 134-32-7
Naphthylamine, 2- 91-59-8
Napropamide 15299-99-7
Neopentyl glycol 126-30-7
Nickel and compounds 7440-02-0
Nitrate-N 14797-55-8
Nitrite-N 14797-65-0
Nitroaniline, 2- 88-74-4
Nitroaniline, 3- 99-09-2
Nitroaniline, 4- 100-01-6
Nitrobenzene 98-95-3
Nitroglycerin 55-63-0
Nitrophenol, 2- 88-75-5
Nitrophenol, 3- 554-84-7
Nitrophenol, 4- 100-02-7
Nitropropane, 2- 79-46-9
Nitroquinoline-N-oxide, 4- 56-57-5
Nitroso-methyl-ethyl-amine, n- 10595-95-6
Nitroso-n-ethylurea, n- 759-73-9
Nitrosodi-n-butylamine, n- 924-16-3
Nitrosodi-n-propylamine, n- 621-64-7
Nitrosodiethanolamine 1116-54-7
Nitrosodiethylamine, n- 55-18-5
Nitrosodimethylamine, n- 62-75-9
Nitrosodiphenylamine 86-30-6
Nitrosomorpholine, N- 59-89-2
Nitrosopiperidine, N- 100-75-4
Nitrosopyrrolidine, n- 930-55-2
Nitrotoluene, m- 99-08-1
Nitrotoluene, o- 88-72-2
Nitrotoluene, p- 99-99-0
Nonachlor, cis- 5103-73-1
Nonachlor, trans- 39765-80-5
Nonanal 124-19-6
Nonene, 1-n 124-11-8
Nonylphenol ethoxylate 9016-45-9
Nonylphenol, 4-n- 104-40-5
Octamethylpyrophosphoramide 152-16-9
Octanone 106-68-3
Oxamyl 23135-22-0
Oxychlordane 27304-13-8
Paraquat 1910-42-5
Parathion (ethyl parathion) 56-38-2
Pebulate 1114-71-2
Pendimethalin 40487-42-1
Pentachlorobenzene 608-93-5
Pentachloroethane 76-01-7
Pentachloronitrobenzene 82-68-8
Pentachlorophenol 87-86-5
Pentadiene, 1,3-cis- 1574-41-0
Pentadiene, 1,3-trans- 2004-70-8
Pentaerythritol tetranitrate (PETN) 78-11-5
Pentane 109-66-0
Pentane, 2-methyl- 107-83-5
Pentane, 3-methyl- 96-14-0
Pentanediol, 1,5- 111-29-5
Pentanol, 1- 71-41-0
Pentanol, 4-methyl-2- 108-11-2
Pentanone, 2- 107-87-9
Pentene, 2- 109-68-2
Pentyne, 1- 627-19-0
Perchlorate 14797-73-0
Perfluorobutane sulfonic acid (1-Butanesulfonic acid, nonafluoro-) [PFBS] 375-73-5
Perfluorobutyric acid (Butanoic acid, heptafluoro-) [PFBA] 375-22-4
Perfluorodecane sulfonic acid (1-Decanesulfonic acid, heneicosafluoro-) [PFDS] 335-77-3
Perfluorodecanoic acid (Decanoic acid, nonadecafluoro-) [PFDA] 335-76-2
Perfluorododecanoic acid (Dodecanoic acid, tricosafluoro-) [PFDoA] 307-55-1
Perfluoroheptanoic acid (Heptanoic acid, tridecafluoro-) [PFHpA] 375-85-9
Perfluorohexane sulfonic acid (1-Hexanesulfonic acid, triddecafluoro-) [PFHxS] 355-46-4
Perfluorohexanoic acid (Hexanoic acid, undecafluoro-) [PFHxA] 307-24-4
Perfluorononanoic acid (Nonanoic acid, heptadecafluoro-) [PFNA] 375-95-1
Perfluorooctane sulfonamide (1-Octanesulfonamide, heptadecafluoro-) [PFOSA] 754-91-6
Perfluorooctane sulfonic acid (1-Octanesulfonic acid, heptadecafluoro-1-) [PFOS] 1763-23-1
Perfluorooctanoic acid (Octanoic acid, pentadecafluoro-) [PFOA] 335-67-1
Perfluoropentanoic acid (Pentanoic acid, nonafluoro-) [PFPeA] 2706-90-3
Perfluorotetradecanoic acid (Tetradecanoic acid, heptacosafluoro-) [PFTeDA] 376-06-7
Perfluorotridecanoic acid (Tridecanoic acid, pentacosafluoro-) [PFTrDA] 72629-94-8
Perfluoroundecanoic acid (Undecanoic acid, uncosafluoro-) [PFUnDa] 2058-94-8
Perylene 198-55-0
Phenacetin 62-44-2
Phenanthrene 85-01-8
Phenanthridine 229-87-8
Phenol 108-95-2
Phenol, 4-tert-butyl- 98-54-4
Phenothiazine 92-84-2
Phenyl mercuric acetate 62-38-4
Phenylene diamine, m- 108-45-2
Phenylene diamine, p- 106-50-3
Phorate 298-02-2
Phosalone 2310-17-0
Phosdrin (mevinphos) 7786-34-7
Phosmet 732-11-6
Phosphine 7803-51-2
Phosphorotrithioic acid, S,S,S-tributyl ester 78-48-8
Phosphorus, total; Phosphorus, white 7723-14-0
Phthalic anhydride 85-44-9
Picloram 1918-02-1
Picoline, 2- (2-methylpyridine) 109-06-8
Polybrominated biphenyls (PBBs) 67774-32-7
Polychlorinated biphenyls (PCBs) 1336-36-3
Potassium 7440-09-7
Primene 68955-53-3
Prometon (pramitol) 1610-18-0
Prometryn 7287-19-6
Pronamide 23950-58-5
Propanal (propionaldehyde) 123-38-6
Propane, 1-bromo- 106-94-5
Propanil 709-98-8
Propanoic acid (propionic acid) 79-09-4
Propanol, 1- 71-23-8
Propargite 2312-35-8
Propargyl alcohol 107-19-7
Propazine 139-40-2
Propham 122-42-9
Propionitrile (propane nitrile) 107-12-0
Propyl acetate, n- 109-60-4
Propylbenzene, n- 103-65-1
Propylene glycol 57-55-6
Propylene glycol monomethyl ether 107-98-2
Propylene oxide 75-56-9
Propylene tetramer 6842-15-5
Prothiofos (Tokuthion) 34643-46-4
Pyrene 129-00-0
Pyridine 110-86-1
Quinoline 91-22-5
Ronnel 299-84-3
Safrole 94-59-7
Selenium 7782-49-2
Selenourea 630-10-4
Silver 7440-22-4
Simazine 122-34-9
Sodium 7440-23-5
Sodium hypochlorite 7681-52-9
Sodium polyacrylate 9003-04-7
Strontium 7440-24-6
Strychnine 57-24-9
Styrene 100-42-5
Sulfate 14808-79-8
Sulfide 18496-25-8
Sulfolane 126-33-0
Sulfur 7704-34-9
Sulprofos (Bolstar) 35400-43-2
Tebuconazole 107534-96-3
Tebuthiuron 34014-18-1
Terbufos 13071-79-9
Tert-amyl ethyl ether (TAEE) 919-94-8
Tert-amyl-methyl ether (TAME) 994-05-8
Tert-butyl alcohol (2-methyl-2-propanol) 75-65-0
Tetrachlorobenzene, 1,2,3,4- 634-66-2
Tetrachlorobenzene, 1,2,3,5- 634-90-2
Tetrachlorobenzene, 1,2,4,5- 95-94-3
Tetrachloroethane, 1,1,1,2- 630-20-6
Tetrachloroethane, 1,1,2,2- 79-34-5
Tetrachloroethylene [PCE] 127-18-4
Tetrachlorophenol, 2,3,4,5- 4901-51-3
Tetrachlorophenol, 2,3,4,6- 58-90-2
Tetrachlorophenol, 2,3,5,6- 935-95-5
Tetrachlorvinphos (Stirophos) 22248-79-9
Tetradifon 116-29-0
Tetraethyl dithiopyrophosphate (sulfotep) 3689-24-5
Tetraethyl lead 78-00-2
Tetraethyl pyrophosphate (TEPP) 107-49-3
Tetraethylene glycol 112-60-7
Tetrahydrofuran 109-99-9
Tetrahydropyran 142-68-7
Tetraoxadodecane, 2,5,8,11- 112-49-2
Thallium 7440-28-0
Thiofanox 39196-18-4
Thionazin 297-97-2
Thiophanate-methyl 23564-05-8
Thiram 137-26-8
Tin 7440-31-5
Titanium 7440-32-6
Toluene 108-88-3
Toluene diisocyanate, 2,4/2,6- 26471-62-5
Toluenediamine, 2,4- 95-80-7
Toluenediamine, 2,6- 823-40-5
Toluidine, o- 95-53-4
Toluidine, p- 106-49-0
Toxaphene 8001-35-2
TP Silvex, 2,4,5- 93-72-1
Triademenol 55219-65-3
Triallate 2303-17-5
Triaminotrinitrobenzene (TATB) 3058-38-6
Tributyltin oxide 56-35-9
Trichloro-1,2,2-trifluoroethane, 1,1,2- 76-13-1
Trichlorobenzene, 1,2,3- 87-61-6
Trichlorobenzene, 1,2,4- 120-82-1
Trichlorobenzene, 1,3,5- 108-70-3
Trichloroethane, 1,1,1- 71-55-6
Trichloroethane, 1,1,2- 79-00-5
Trichloroethylene [TCE] 79-01-6
Trichlorofluoromethane 75-69-4
Trichloronate 327-98-0
Trichlorophenol, 2,3,4- 15950-66-0
Trichlorophenol, 2,3,5- 933-78-8
Trichlorophenol, 2,3,6- 933-75-5
Trichlorophenol, 2,4,5- 95-95-4
Trichlorophenol, 2,4,6- 88-06-2
Trichlorophenol, 3,4,5- 609-19-8
Trichlorophenoxyacetic acid, 2,4,5- 93-76-5
Trichloropropane, 1,1,2- 598-77-6
Trichloropropane, 1,2,3- 96-18-4
Triethanolamine 102-71-6
Triethylamine 121-44-8
Triethylene glycol 112-27-6
Triethylphosphorothioate, O, O, O- 126-68-1
Trifluralin 1582-09-8
Trimethylamine 75-50-3
Trimethylbenzene, 1,2,3- 526-73-8
Trimethylbenzene, 1,2,4- 95-63-6
Trimethylbenzene, 1,3,5- 108-67-8
Trinitrobenzene, 1,3,5- 99-35-4
Trinitrophenylmethylnitramine (tetryl; nitramine) 479-45-8
Trinitrotoluene, 2,4,6- 118-96-7
Tungsten (as sodium tungstate dihydride) 7440-33-7
Uranium (soluble salts) 7440-61-1
Valeric acid (pentanoic acid) 109-52-4
Vanadium 7440-62-2
Vernam 1929-77-7
Vinyl acetate 108-05-4
Vinyl chloride 75-01-4
Vinylcyclohexane 695-12-5
Warfarin 81-81-2
Xylene, m- 108-38-3
Xylene, o- 95-47-6
Xylene, p- 106-42-3
Xylenes 1330-20-7
Zinc 7440-66-6

Source

Texas Commission on Environmental Quality, Texas Risk Reduction Program Tier 1 Protective Concentration Levels, last revised February 6, 2025. File read October 1, 2026.

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Texas environmental records