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Environmental Health Division
Comparison of State Water Guidance and Federal Drinking Water Standards
May 2024
The information below is intended to assist with evaluation of levels of drinking water contaminants. Definitions of different types of water guidance, shown below in the table, can be found on the Guidance Values and Standards for Contaminants in Drinking Water webpage.
An Excel table providing the Comparison of State Water Guidance and Federal Drinking Water Standards (Excel) is also available for download.
For questions or more information, please see the Links below about water guidance, or contact Health Risk Assessment Unit.
A | B | C | D | E | F | G | H | I | J | K | L
M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
Chemical Name CAS Number (if available) | EPA MCL (μg/L) | EPA MCLG (μg/L) | Lowest EPA Health Advisory (μg/L) | Type of HA value | Lowest MDH Value (μg/L) | Type and date of MDH value | Duration of Exposure |
---|---|---|---|---|---|---|---|
Acenaphthene 83-32-9 | 2000 | DWEL | 100 | HRL18 | Chronic | ||
Acetaminophen 103-90-2 | 200 | HRL15 | Acute | ||||
Acetochlor 34256-82-1 | 20 | HRL18 | Chronic | ||||
Acetochlor ESA 187022-11-3 | 300 | HRL18 | Chronic | ||||
Acetochlor OXA 184992-44-4 | 90 | HRL18 | Chronic | ||||
Acetone 67-64-1 | 3000 | HRL23 | Chronic | ||||
Acetyl-1,1,2,4,4,7 hexamethyltetraline (AHTN), 6- 21145-77-7 or 1506-02-1 | 20 | HRL13 | Chronic | ||||
Acifluorfen (sodium) 62476-59-9 | 100 | cancer | |||||
Acrylamide 79-06-1 | TT | zero | 70 | DWEL | 0.2 | HRL15 | Cancer |
Acrylonitrile 107-13-1 | 6 | cancer | |||||
Alachlor 15972-60-8 | 2 | zero | 40 | cancer | 9 | HRL18 | Chronic |
Alachlor ESA 142363-53-9 | 50 | RAA16 | Chronic | ||||
Alachlor OXA 171262-17-2 | 50 | RAA16 | Chronic | ||||
Aldicarb 116-06-3 | 3 | 1 | 7 | life-time | 1 | HRL93 | Chronic |
Aldicarb sulfone 1646-88-4 | 2 | 1 | 7 | life-time | |||
Aldicarb sulfoxide 1646-87-3 | 4 | 1 | 7 | life-time | |||
Aldrin 309-00-2 | 0.2 | cancer | |||||
Allyl Chloride 107-05-1 | 30 | HRL94 | Chronic | ||||
Ametryn 834-12-8 | 60 | life-time | |||||
Aminomethylphosphonic acid (AMPA) 1066-51-9 | 1000 | HRL23 | Chronic | ||||
Ammonia 7664-41-7 | 30000 | life-time | |||||
Ammonium sulfamate 7773-06-0 | 2000 | life-time | |||||
Anatoxin-a 64285-06-9 | 0.1 | RAA16 | Short-Term | ||||
Anthracene 120-12-7 | 10000 | DWEL | 2000 | HRL93 | Chronic | ||
Anthracene 120-12-7 | 10000 | DWEL | 600 | RAA19 | Chronic | ||
Antimony 7440-36-0 | 6 | 6 | 6 | life-time | 6 | HRL93 | Chronic |
Arsenic 7440-38-2 | 10 | zero | 2 | cancer | |||
Asbestos (fibers/l >10Fm length) 1332-21-4 | 7 MFL | 7 MFL | 700 MFL | cancer | |||
Atrazine 1912-24-9 | 3 | 3 | 700 | DWEL | 3 | HRLMCL | Chronic |
Barium 7440-39-3 | 2000 | 2000 | 700 | 1 day | 2000 | HRL93 | Chronic |
Baygon 114-26-1 | 3 | life-time | |||||
Bentazon 25057-89-0 | 200 | life-time | 30 | HRL15 | Chronic | ||
Benzene 71-43-2 | 5 | zero | 3 | life-time | 2 | HRL09 | Cancer |
Benzo[a]pyrene 50-32-8 | 0.2 | zero | 0.5 | cancer | 0.1 | HRL23 | Cancer |
Benzoic Acid 65-85-0 | 30000 | HRL93 | Chronic | ||||
Benzophenone 119-61-9 | 100 | HRL23 | Subchronic | ||||
Benzotriazole, -1H 95-14-7 | 20 | HRL23 | Short-Term | ||||
Benzotriazole, methyl-1H 29385-43-1 | 20 | RAA19 | Short-Term | ||||
Benzotriazole, 5-methyl-1H 136-85-6 | 20 | RAA19 | Short-Term | ||||
Beryllium 7440-41-7 | 4 | 4 | 70 | DWEL | 0.08 | HRL93 | Cancer |
Beta particle and photon activity (formerly man-made radionuclides) | 4 mrem/yr | zero | 4 mrem/yr | cancer | |||
Biphenyl 92-52-4 | 10 | HRL23 | Cancer | ||||
Bis(2-chloro-1-methylethyl) ether 108-60-1 | 300 | life-time | |||||
Bis(2-chloroethyl) ether 111-44-4 | 0.3 | HRL93 | Cancer | ||||
Bis(2-chloromethyl) ether 542-88-1 | 0.002 | HRL93 | Cancer | ||||
Bisphenol A 80-05-7 | 20 | HRL15 | Subchronic | ||||
Boron 7440-42-8 | 3000 | 1 day | 500 | RAA17 | Short-Term | ||
Bromacil 314-40-9 | 70 | life-time | |||||
Bromate 7789-38-0 | 10 | zero | 5 | cancer | |||
Bromobenzene 108-86-1 | 60 | life-time | |||||
Bromochloromethane 74-97-5 | 90 | life-time | |||||
Bromodichloromethane 75-27-4 | 80 | zero | 100 | cancer | 3 | HRL23 | Cancer |
Bromoform 75-25-2 | 80 | zero | 200 | 10 day | 40 | HRL93 | Cancer |
Bromomethane 74-83-9 | 10 | life-time | 10 | HRL93 | Chronic | ||
Butanol, 1- 71-36-3 | 700 | HRL93 | Chronic | ||||
Butyl benzyl phthalate 85-68-7 | 7000 | DWEL | 100 | HRL15 | Acute | ||
Butylate 2008-41-5 | 400 | life-time | |||||
Butylphthalyl butylglycolate 85-70-1 | 7000 | HRL93 | Chronic | ||||
Cadmium 7440-43-9 | 5 | 5 | 5 | life-time | 0.5 | HRL15 | Chronic |
Carbamazepine 298-46-4 | 40 | HRL13 | Acute | ||||
Carbaryl 63-25-2 | 400 | DWEL | |||||
Carbofuran 1563-66-2 | 40 | 40 | |||||
Carbon Disulfide 75-15-0 | 700 | HRL93 | Chronic | ||||
Carbon tetrachloride 56-23-5 | 5 | zero | 30 | life-time | 1 | HRL13 | Cancer |
Carboxin 5234-68-4 | 700 | life-time | |||||
Chloramben 133-90-4 | 100 | life-time | 100 | HRL94 | Chronic | ||
Chloramine 10599-90-3 | 4000 | 4000 | 3000 | life-time | |||
Chlordane 12798-03-6 | 2 | zero | 4 | life-time | |||
Chlorine 7782-50-5 | 4000 | 4000 | 3000 | 1 day | |||
Chlorine dioxide 10049-04-4 | 800 | 800 | 800 | 1 day | |||
Chlorite 7758-19-2 | 1000 | 800 | 800 | 1 day | |||
Chlorobenzene 108-90-7 | 100 | 100 | 100 | life-time | 100 | HRL93 | Chronic |
Chloroethane 75-00-3 | RAA16 | ||||||
Chloroform 67-66-3 | 80 | 70 | 70 | life-time | 20 | HRL18 | Short-Term |
Chloromethane 74-87-3 | 400 | 10 day | |||||
Chlorophenol, 2- 95-57-8 | 40 | life-time | 30 | HRL93 | Chronic | ||
Chlorothalonil 1897-45-6 | 150 | cancer | 30 | HRL94 | Cancer | ||
Chlorothalonil 1897-45-6 | 1 | HBV23 | Chronic | ||||
Chlorotoluene o- 95-49-8 | 100 | life-time | |||||
Chlorotoluene p- 106-43-4 | 100 | life-time | |||||
Chlorpyrifos 2921-88-2 | 2 | life-time | 0.6 | HBV13 | Short-Term | ||
Chlorpyrifos oxon 5598-15-2 | 0.4 | RAA13 | Short-Term | ||||
Chromium (total) 7440-47-3 | 100 | 100 | 100 | DWEL | |||
Chromium III 16065-83-1 | 20000 | HRL94 | Chronic | ||||
Chromium VI 18540-29-9 | 100 | HRL93 | Chronic | ||||
Clothianidin 210880-92-5 or 205510-53-8 | 200 | HRL18 | Short-Term | ||||
Copper (at tap) 7440-50-8 | TT - action level of 1.3 mg/L | 1300 | |||||
Cumene (Isopropyl benzene) 98-82-8 | 300 | HRL93 | Chronic | ||||
Cyanazine 21725-46-2 | 1 | life-time | 1 | HRL18 | Chronic | ||
Cyanazine acid (CAC) (degradate of Cyanazine) 36576-43-9 | 1 | RAA20 | Chronic | ||||
Cyanazine amide (CAM) (degradate of Cyanazine) 36576-42-8 | 1 | RAA20 | Chronic | ||||
Cyanide 143-33-9 | 200 | 200 | 200 | 1 day | |||
Cyanide, free 57-12-5 | 100 | HRL93 | Chronic | ||||
Cyanogen chloride 506-77-4 | 50 | 1 day | |||||
Cylindrospermopsin 143545-90-8 | 0.7 | 10 day | |||||
Dimethyl tetrachloroterephthalate (DCPA or Dacthal) 1861-32-1 | 70 | life-time | |||||
Dalapon (sodium salt) 75-99-0 | 200 | 200 | 200 | life-time | |||
Deethylatrazine (DEA) (degradate of Atrazine) 6190-65-4 | 3 | RAA20 | Chronic | ||||
Deethylcyanazine (DEC) (degradate of Cyanazine) 21725-40-6 | 1 | RAA20 | Chronic | ||||
Deethylcyanazine acid (DCAC) (degradate of Cyanazine) 36749-35-6 | 1 | RAA20 | Chronic | ||||
Deethylcyanazine amide (DCAM) (degradate of Cyanazine) 36556-77-1 | 1 | RAA20 | Chronic | ||||
Deethyldeisopropylatrazine (DACT, DEDI, DDA) (degradate of Atrazine and Cyanazine) 3397-62-4 | 1 | RAA20 | Chronic | ||||
Deisopropylatrazine (DIA) (degradate of Atrazine and Cyanazine) 1007-28-9 | 1 | RAA20 | Chronic | ||||
Desvenlafaxine 93413-62-8; 300827-87-6; 386750-22-7; 93414-04-1 | 20 | HBV15 | Short-Term | ||||
Desvenlafaxine - succinate salt 386750-22-7 | 20 | HBV15 | Short-Term | ||||
Di(2-ethylhexyl)adipate 103-23-1 | 400 | 400 | 400 | life-time | |||
Di(2-ethylhexyl)phthalate 117-81-7 | 6 | zero | 300 | cancer | 7 | HRL15 | Cancer |
Diazinon 333-41-5 | 1 | life-time | |||||
Dibromochloromethane 124-48-1 | 80 | 60 | 60 | life-time | 10 | HRL93 | Chronic |
Dibromochloropropane (DBCP) 96-12-8 | 0.2 | zero | 3 | cancer | |||
Dibromoethane, 1,2- (Ethylene dibromide (EDB)) 106-93-4 | 0.05 | zero | 2 | cancer | 0.004 | HRL93 | Cancer |
Dibromoethane, 1,2- (Ethylene dibromide (EDB)) 106-93-4 | 0.05 | zero | 2 | cancer | 0.03 | HBV23 | Cancer |
Dibutyl phthalate 84-74-2 | 4000 | DWEL | 20 | HRL15 | Acute | ||
Dicamba 1918-00-9 | 4000 | life-time | 200 | HRL93 | Chronic | ||
Dichloroacetic acid 79-43-6 | 60 | zero | 30 | life-time | |||
Dichlorobenzene 541-73-1 | 600 | life-time | |||||
Dichlorobenzene, 1,2- 95-50-1 | 600 | 600 | 600 | life-time | 600 | HRL93 | Chronic |
Dichlorobenzene, 1,4- 106-46-7 | 75 | 75 | 75 | life-time | 50 | HRL23 | Short-Term |
Dichlorobenzidine, 3,3'- 91-94-1 | 0.8 | HRL93 | Cancer | ||||
Dichlorodifluoromethane 75-71-8 | 1000 | life-time | 700 | HRL11 | Chronic | ||
Dichlorodifluoromethane 75-71-8 | 1000 | life-time | 500 | RAA17 | Chronic | ||
Dichlorodiphenyldichloroethane, p,p'- (DDD) 72-54-8 | 1 | HRL93 | Cancer | ||||
p,p'-Dichlorodiphenyldichloroethylene, (DDE) 72-55-9 | 1 | HRL93 | Cancer | ||||
Dichlorodiphenyltrichloroethane, p,p'-(DDT) 50-29-3 | 1 | HRL93 | Cancer | ||||
Dichloroethane, 1,1- 75-34-3 | 80 | RAA16 | Chronic | ||||
Dichloroethane (EDC), 1,2- 107-06-2 | 5 | zero | 40 | cancer | 1 | HRL13 | Cancer |
Dichloroethylene, 1,1- 75-35-4 | 7 | 7 | 6 | cancer | 200 | HRL23 | Subchronic |
Dichloroethylene (cis-1,2-) 156-59-2 | 70 | 70 | 10 | life-time | 6 | HRL18 | Chronic |
Dichloroethylene (trans-1,2-) 156-60-5 | 100 | 100 | 100 | life-time | 9 | HRL23 | Chronic |
Dichlorofluoromethane 75-43-4 | 20 | RAA17 | Short-Term | ||||
Dichloromethane 75-09-2 | 5 | zero | 200 | life-time | 5 | HRLMCL | Chronic |
Dichlorophenol, 2,4- 120-83-2 | 20 | life-time | 20 | HRL93 | Chronic | ||
Dichlorophenoxyacetic acid, 2,4- (2,4-D) 94-75-7 | 70 | 70 | 200 | DWEL | 30 | HRL18 | Chronic |
Dichloropropane, 1,2- 78-87-5 | 5 | zero | 60 | cancer | 3 | HRL23 | Cancer |
Dichloropropene, 1,3- 542-75-6 | 30 | 1 day | 2 | HRL94 | Cancer | ||
Dieldrin 60-57-1 | 0.2 | cancer | 0.006 | HRL18 | Cancer | ||
Diethyl phthalate 84-66-2 | 30000 | DWEL | 6000 | HRL93 | Chronic | ||
Diethyl-meta-toluamide (DEET), N,N- 134-62-3 | 200 | HRL13 | Short-Term | ||||
Diisopropylmethylphosphonate 1445-75-6 | 600 | life-time | |||||
Diketonitrile (DKN) 143701-75-1 | 7 | RAA24 | Chronic | ||||
Dimethenamid Ethanesulfonic acid (ESA) 205939-58-8 | 300 | RAA13 | Chronic | ||||
Dimethenamid Oxanilic acid (OXA) 380412-59-9 | 300 | RAA13 | Chronic | ||||
Dimethenamid-p 163515-14-8 | 300 | HRL15 | Chronic | ||||
Dimethrin 70-38-2 | 2000 | life-time | |||||
Dimethyl methylphosphonate 756-79-6 | 100 | life-time | |||||
Dimethyl phthalate 131-11-3 | 70000 | HRL94 | Chronic | ||||
Dimethyl tetrachloroterephthalate (DCPA or Dacthal) 1861-32-1 | 70 | life-time | |||||
Dimethylphenol, 2,4- 105-67-9 | 100 | HRL93 | Chronic | ||||
Dinitrobenzene,1,3- 99-65-0 | 1 | life-time | |||||
Dinitrophenol, 2,4- 51-28-5 | 10 | HRL93 | Chronic | ||||
Dinitrotoluene, 2,4- 121-14-2 | 5 | cancer | |||||
Dinitrotoluene, 2,6- 606-20-2 | 5 | cancer | |||||
Dinoseb 88-85-7 | 7 | 7 | 7 | life-time | 8 | HRL18 | Short-Term |
Dioxane, 1,4- 123-91-1 | 35 | cancer | 1 | HRL13 | Cancer | ||
Diphenamid 957-51-7 | 200 | life-time | |||||
Diquat 85-00-7 | 20 | 20 | 20 | DWEL | |||
Disulfoton 298-04-4 | 0.7 | life-time | 0.3 | HRL94 | Chronic | ||
Dithiane (1,4-) 505-29-3 | 80 | life-time | |||||
Diuron 330-54-1 | 100 | DWEL | |||||
Endothall 145-73-3 | 100 | 100 | 50 | life-time | |||
Endrin 72-20-8 | 2 | 2 | 2 | life-time | |||
Epichlorohydrin 106-89-8 | TT2 | zero | 70 | DWEL | |||
17α-Ethinylestradiol 57-63-6 | 0.0002 | HRL23 | Subchronic | ||||
Ethyl dipropylthiocarbamate, S-(EPTC) 759-94-4 | 40 | HRL18 | Chronic | ||||
Ethyl ether 60-29-7 | 200 | RAA16 | Chronic | ||||
Ethylbenzene 100-41-4 | 700 | 700 | 700 | life-time | 40 | HRL23 | Short-Term |
Ethylene glycol 107-21-1 | 6000 | 10 day | 2000 | HRL23 | Subchronic | ||
Ethylene Thiourea (ETU) 96-45-7 | 7 | DWEL | |||||
Fenamiphos 22224-92-6 | 0.7 | life-time | |||||
Fluometuron 2164-17-2 | 90 | life-time | |||||
Fluoranthene 206-44-0 | 70 | HRL18 | Chronic | ||||
Fluorene 86-73-7 | 1000 | DWEL | 80 | HRL23 | Chronic | ||
Fluoride 7681-49-4 | 4000 | 4000 | |||||
Fomesafen 72178-02-0 | 20 | HRL23 | Chronic | ||||
Fonofos 944-22-9 | 10 | life-time | |||||
Formaldehyde 50-00-0 | 1000 | life-time | 1000 | HRL94 | Chronic | ||
GenX Chemicals: Hexafluoropropylene Oxide (HFPO) dimer acid and HFPO dimer acid ammonium salt 13252-13-6, 62037-80-3 | 0.01 1 (unitless)7 | 0.01 1 (unitless)7 | 0.01 | life-time | |||
Glyphosate 1071-83-6 | 700 | 700 | 20000 | 1 day | 500 | HBV17 | Chronic |
Gross alpha particle activity | 15 pCi/L | zero | 15 pCi/L | cancer | |||
Heptachlor 76-44-8 | 0.4 | zero | 0.8 | cancer | 0.08 | HRL93 | Cancer |
Heptachlor epoxide 1024-57-3 | 0.2 | zero | 0.4 | cancer | 0.04 | HRL93 | Cancer |
Hexachlorobenzene 118-74-1 | 1 | zero | 2 | cancer | 0.2 | HRL93 | Cancer |
Hexachlorobutadiene 87-68-3 | 10 | DWEL | 1 | HRL93 | Chronic | ||
Hexachlorocyclopentadiene 77-47-4 | 50 | 50 | 200 | DWEL | |||
Hexachloroethane 67-72-1 | 1 | life-time | |||||
Hexane (n-hexane) 110-54-3 | 4000 | 10 day | 80 | RAA22 | Chronic | ||
Hexazinone 51235-04-2 | 400 | life-time | |||||
HMX 2691-41-0 | 400 | life-time | |||||
4-Hydroxychlorothalonil 28343-61-5 | 2 | RAA23 | Short-Term | ||||
Imidacloprid 138261-41-3 | 2 | HRL23 | Short-Term | ||||
Isobutanol 78-83-1 | 300 | HBV16 | Chronic | ||||
Isophorone 78-59-1 | 100 | life-time | 100 | HRL93 | Chronic | ||
Isopropyl methylphosphonate 1832-54-8 | 700 | life-time | |||||
Isopropylbenzene (cumene) 98-82-8 | 4000 | DWEL | 300 | HRL93 | Chronic | ||
Isoxaflutole 141112-29-0 | 7 | HBV24 | Chronic | ||||
Lead (at tap) 7439-92-1 | TT action level is 0.015 mg/L | zero | |||||
Lindane 58-89-9 | 0.2 | 0.2 | 200 | DWEL | |||
Linuron 330-55-2 | 1 | HRL93 | Chronic | ||||
Malathion 121-75-5 | 200 | 1 day | |||||
Maleic hydrazide 123-33-1 | 4000 | life-time | |||||
Manganese 7439-96-5 | 300 | life-time | 100 | HRL23 | Short-Term | ||
Mercury (inorganic) 7487-94-7 | 2 | 2 | 2 | 1 day | |||
Mestranol 72-33-3 | 0.0002 | RAA16 | Subchronic | ||||
MCPA (2-Methyl-4-chlorophenoxyacetic acid) 94-74-6 | 30 | life-time | 3 | HRL93 | Chronic | ||
Methanol 67-56-1 | 3000 | HRL94 | Chronic | ||||
Methomyl 16752-77-5 | 200 | life-time | |||||
Methoxychlor 72-43-5 | 40 | 40 | 40 | life-time | |||
Methyl ethyl ketone 78-93-3 | 4000 | life-time | 4000 | HRL94 | Chronic | ||
Methylene chloride (see Dichloromethane) 75-09-2 | |||||||
Methyl isobutyl ketone 108-10-1 | 300 | HRL94 | Chronic | ||||
Methyl parathion 298-00-0 | 1 | life-time | |||||
Methyl tertiary butyl ether (MTBE) 1634-04-4 | 60 | RAA13 | Cancer | ||||
Methylnaphthalene, 2- 91-57-6 | 8 | RAA13 | Chronic | ||||
Methylphenol, 2- 95-48-7 | 30 | HRL93 | Chronic | ||||
Methylphenol, 3- 108-39-4 | 30 | HRL93 | Chronic | ||||
Methylphenol, 4- 106-44-5 | 3 | HRL94 | Chronic | ||||
Metolachlor 51218-45-2 | 700 | life-time | 300 | HRL23 | Short-Term | ||
s-Metolachlor 87392-12-9 | 300 | HRL23 | Short-Term | ||||
Metolachlor ESA 171118-09-5 | 1,000 | HRL23 | Chronic | ||||
Metolachlor OXA 152019-73-3 | 1,000 | HRL23 | Chronic | ||||
Metribuzin 21087-64-9 | 70 | life-time | 10 | HRL13 | Short-Term | ||
Metribuzin DA 35045-02-4 | 10 | RAA12 | Short-Term | ||||
Metribuzin DADK 52236-30-3 | 10 | RAA12 | Short-Term | ||||
Metribuzin DK 56507-37-0 | 10 | RAA12 | Short-Term | ||||
Microcystin-LR 101043-37-2 | 0.3 | 10 day | 0.1 | HBV15 | Short-Term | ||
Molybdenum 7439-98-7 | 40 | life-time | |||||
Monochloroacetic acid 79-11-8 | 60 | 70 | 70 | life-time | |||
Naphthalene 91-20-3 | 100 | life-time | 70 | HRL13 | Acute | ||
Nickel 7440-02-0 | 100 | life-time | 100 | HRL93 | Chronic | ||
Nitrate (as N) 14797-55-8 | 10000 | 10000 | 10000 | 1 day | 10000 | HRLMCL | Acute |
Nitrite (as N) 14797-65-0 | 1000 | 1000 | 1000 | 1 day | |||
Nitroguanidine 556-88-7 | 700 | life-time | |||||
Nitrophenol p- 100-02-7 | 60 | life-time | |||||
N-Nitrosodimethylamine (NDMA) 62-75-9 | 0.005 | HBV17 | Cancer | ||||
Nitrosodiphenylamine, N- 86-30-6 | 70 | HRL93 | Cancer | ||||
Nonylphenol, p- 84852-15-3 | 20 | HRL23 | Chronic | ||||
Octylphenol, 4-tert 140-66-9 | 100 | HRL23 | Short-Term | ||||
Oxamyl (Vydate) 23135-22-0 | 200 | 200 | 10 | 1 day | |||
Paraquat 1910-42-5 | 30 | life-time | |||||
Pentachlorophenol 87-86-5 | 1 | zero | 9 | cancer | 0.3 | HRL15 | Cancer |
Perchlorate 14797-73-0 | 15 | life-time | |||||
Perfluorobutane sulfonate (PFBS) 45187-15-3; 375-73-5; 29420-49-3; 68259-10-9; 60453-92-1 | 1 (unitless)7 | 1 (unitless)7 | 2 | life-time | 0.1 | HRL23 | Short-Term |
Perfluorobutyrate (PFBA) 45048-62-2; 375-22-4 | 7 | HRL18 | Short-Term | ||||
Perfluorohexane sulfonate (PFHxS) 108427-53-8; 355-46-4; 3871-99-6 | 0.01 1 (unitless)7 | 0.01 1 (unitless)7 | 0.047 | HRL23 | Short-Term | ||
Perfluorohexanoate (PFHxA) 92612-52-7; 307-24-4; 21615-47-4; 2923-26-4 | 0.2 | HRL23 | Short-Term | ||||
Perfluorononanoic acid (PFNA) 72007-68-2 | 0.01 1 (unitless)7 | 0.01 1 (unitless)7 | |||||
Perfluorooctanoic Acid (PFOA) and salts 45285-51-6; 335-67-1; 335-66-0; 3825-26-1; 2395-00-8; 335-93-3; 335-95-5 | 0.07 | life-time | 0.035 | HRL18 | Short-Term | ||
Perfluorooctanoic Acid (PFOA) and salts 45285-51-6; 335-67-1; 3825-26-1; 2395-00-8; 335-95-5; 335-93-3 | 0.004 | 0 | 0.07 | life-time | 0.0000079 | HBV24 | Cancer |
Perfluorooctane Sulfonate (PFOS) and salts 45298-90-6; 1763-23-1; 29081-56-9; 70225-14-8; 2795-39-3; 29457-72-5 | 0.07 | life-time | 0.3 | HRL09 | Chronic | ||
Perfluorooctane Sulfonate (PFOS) and salts 45298-90-6; 1763-23-1; 29081-56-9; 70225-14-8; 2795-39-3; 29457-72-5 | 0.004 | 0 | 0.07 | life-time | 0.0023 | HBV24 | Short-Term |
Phenol 108-95-2 | 2000 | life-time | 4000 | HRL93 | Chronic | ||
Picloram 1918-02-1 | 500 | 500 | 700 | DWEL | 500 | HRL93 | Chronic |
Polychlorinated biphenyls (PCBs) 1336-36-3 | 0.5 | zero | 10 | cancer | 0.04 | HRL94 | Cancer |
Prometon 1610-18-0 | 200 | 1 day | 100 | HRL93 | Chronic | ||
Pronamide 23950-58-5 | 100 | cancer | |||||
Propachlor 1918-16-7 | 100 | cancer | 90 | HRL93 | Chronic | ||
Propazine 139-40-2 | 10 | life-time | |||||
Propham 122-42-9 | 100 | life-time | |||||
Pyraclostrobin 175013-18-0 | 100 | HBV16 | Short-Term | ||||
Pyrene 129-00-0 | 50 | HRL18 | Chronic | ||||
Quinoline 91-22-5 | 0.03 | HRL23 | Cancer | ||||
Radium 226 & 228 (combined) 7440-14-4 | 5 pCi/L | zero | |||||
RDX 21-82-4 | 2 | life-time | |||||
Selenium 7782-49-2 | 50 | 50 | 50 | life-time | 30 | HRL93 | Chronic |
Silver 7440-22-4 | 100 | life-time | 30 | HRL93 | Chronic | ||
Simazine 122-34-9 | 4 | 4 | 700 | DWEL | 4 | HRLMCL | Chronic |
Strontium 7440-24-6 | 4000 | life-time | 3000 | RAA19 | Short-Term | ||
Styrene 100-42-5 | 100 | 100 | 100 | life-time | |||
Sulfamethazine 57-68-1 | 100 | HRL15 | Short-Term | ||||
Sulfamethoxazole 723-46-6 | 100 | RAA13 | Short-Term | ||||
Sulfamethazine, sodium salt 1981-58-4 | 100 | HBV13 | Short-Term | ||||
TCDD, 2,3,7,8- (Dioxin) 1746-01-6 | 0.00003 | zero | 0.00002 | cancer | |||
Tebuthiuron 34014-18-1 | 500 | life-time | |||||
Terbacil 5902-51-2 | 90 | life-time | |||||
Terbufos 13071-79-9 | 0.4 | life-time | |||||
Tetrachloroethane, 1,1,1,2- 630-20-6 | 70 | life-time | 70 | HRL93 | Chronic | ||
Tetrachloroethane, 1,1,2,2- 79-34-5 | 40 | cancer | 2 | HRL94 | Cancer | ||
Tetrachloroethylene 127-18-4 | 5 | zero | 10 | life-time | 4 | HRL23 | Cancer |
Tetrachloroterephthalic acid 2136-79-0 | 100000 | 1 day | |||||
Tetrahydrofuran 109-99-9 | 600 | HRL18 | Short-Term | ||||
Thallium 7440-28-0 | 2 | 0.5 | 7 | 1 day | 0.6 | HRL94 | Chronic |
Thiamethoxam 153719-23-4 | 200 | HRL18 | Subchronic | ||||
Tin 7440-31-5 | 4000 | HRL94 | Chronic | ||||
Toluene 108-88-3 | 1000 | 1000 | 2000 | 10 day | 70 | HRL23 | Short-Term |
Toxaphene 8001-35-2 | 3 | zero | 3 | cancer | 0.3 | HRL93 | Cancer |
Trichloroacetic acid 76-03-9 | 60 | 20 | 20 | life-time | |||
Trichlorobenzene, 1,2,4- 120-82-1 | 70 | 70 | 70 | life-time | 4 | HRL13 | Cancer |
Trichlorobenzene, 1,3,5- 108-70-3 | 40 | life-time | 4 | RAA12 | Cancer | ||
Trichloroethane, 1,1,1- 71-55-6 | 200 | 200 | 40000 | 10 day | 5000 | HRL18 | Chronic |
Trichloroethane, 1,1,2- 79-00-5 | 5 | 3 | 3 | life-time | 3 | HRL93 | Chronic |
Trichloroethylene 79-01-6 | 5 | zero | 200 | DWEL | 0.4 | HRL15 | Short-Term |
Trichlorofluoromethane 75-69-4 | 2000 | life-time | 2000 | HRL93 | Chronic | ||
Trichlorophenol, 2,4,6- 88-06-2 | 10 | DWEL | 30 | HRL93 | Cancer | ||
Trichlorophenoxyacetic acid, 2,4,5- 93-76-5 | 70 | life-time | 70 | HRL93 | Chronic | ||
2(2,4,5-trichlorophenoxy) propionic acid , (2,4,5-TP or Silvex) 93-72-1 | 50 | 50 | 50 | life-time | 50 | HRLMCL | Chronic |
Trichloropropane,1,2,3- 96-18-4 | 100 | DWEL | 0.003 | HRL13 | Cancer | ||
Trichloro-1,2,2-trifluoroethane, 1,1,2- 76-13-1 | 200000 | HRL93 | Chronic | ||||
Triclocarban 101-20-2 | 100 | RAA13 | Chronic | ||||
Triclosan 3380-34-5 | 50 | HRL15 | Short-Term | ||||
Trifluralin 1582-09-8 | 10 | life-time | |||||
Trimethylbenzene, 1,2,3- 526-73-8 | 30 | HRL23 | Short-Term | ||||
Trimethylbenzene, 1,2,4- 95-63-6 | 30 | HRL23 | Short-Term | ||||
Trimethylbenzene, 1,3,5- 108-67-8 | 10000 | 1 day | 30 | HRL23 | Short-Term | ||
Trinitrobenzene, 1,3,5- 99-35-4 | 0.3 | HRL93 | Chronic | ||||
Trinitroglycerol 55-63-0 | 5 | 1 day | |||||
Trinitrotoluene, 2,4,6- 118-96-7 | 2 | life-time | |||||
Tris(2-butoxyethyl) phosphate (TBEP) 78-51-3 | 30 | HRL23 | Short-Term | ||||
Tris(2-chloroethyl) phosphate (TCEP) 115-96-8 | 5 | HRL13 | Cancer | ||||
Tris(1,3-dichloroisopropyl) phosphate (TDCPP) 13674-87-8 | 0.8 | HRL23 | Cancer | ||||
Uranium 7440-61-1 | 30 | zero | 20 | DWEL | |||
Vanadium 7440-62-2 | 50 | HRL94 | Chronic | ||||
Venlafaxine - free base 93413-69-5 | 10 | HRL23 | Short-Term | ||||
Venlafaxine - HCl salt 99300-78-4 | 10 | HRL23 | Short-Term | ||||
Vinyl chloride 75-01-4 | 2 | zero | 2 | cancer | 0.2 | HRL18 | Cancer |
White phosphorous 7723-14-0 | 0.1 | life-time | |||||
Xylenes 1330-20-7 | 10000 | 10000 | 7000 | DWEL | 300 | HRL23 | Short-Term |
Zinc 7440-66-6 | 2000 | life-time | 2000 | HRL94 | Chronic |
* The 30-day (Short-term duration) exceedance for the following contaminants are a special concern. Click on the links for more detail: Acrylamide; Benzene; Benzo[a]pyrene; Cadmium; Carbon tetrachloride; cis-1,2-Dichloroethylene; Di(2-ethylhexyl) phthalate; Pentachlorophenol.
1EPA's incremental cancer risk of 10-4 has been converted to MDH's risk of 10-5
2Treatment technology
3Total for trihalomethanes is 0.08 mg/L
4EPA MCL is for total chromium, using an RfD for Cr VI, MDH guidance is for chromium VI alone
5Secondary drinking water regulations
6 See guidance for Chloroethane
7 Hazard Index MCL for a PFAS mixture containing two or more of GenX, PFBS, PFHxS, and PFNA. See the EPA Fact Sheet Understanding the Final PFAS National Primary Drinking Water Regulation Hazard Index Maximum Contaminant Level for more information.
Abbreviations
EPA - Environmental Protection Agency
DWEL - EPA Drinking Water Equivalent Level
HBV- MDH Health-Based Value
HRL - MDH Health Risk Limit
MCL - Maximum Contaminant Level
MCL HRL - EPA's MCL adopted into MDH HRL rule
RAA - MDH Risk Assessment Advice
Links
- 2018 Edition of the Drinking Water Standards and Health Advisories (PDF)
Environmental Protection Agency - Guidance Values and Standards for Contaminants in Drinking Water
- Health-Based Guidance for Water
- Human Health-Based Water Guidance Table
Note: The table above and the accompanying spreadsheet are provided for convenience to compare Minnesota guidance with available federal standards or guidance. Though we update the table regularly, MDH does not guarantee that EPA values are current at any given time. Please reference National Primary Drinking Water Regulations for current EPA standards and guidance.