Comparison of State Water Guidance and Federal Drinking Water Standards
October 2019
The information below is intended to assist with evaluation of levels of drinking water contaminants.
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 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 |
4000 | HRL11 | Chronic | ||||
| Acetone 67-64-1 |
3000 | HBV17 | 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 | HBV17 | 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 | ||
| Benz[a]anthracene (PAH) 56-55-3 |
|||||||
| 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 | HBV18 | Cancer |
| Benzo[b]fluoranthene (PAH) 205-99-2 |
|||||||
| Benzo[g,h,i]perylene (PAH) 191-24-2 |
|||||||
| Benzo[k]fluoranthene (PAH) 207-08-9 |
|||||||
| Benzoic Acid 65-85-0 |
30000 | HRL93 | Chronic | ||||
| 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, 1,1- (Diphenyl) 92-52-4 |
300 | HRL93 | Chronic | ||||
| 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 | 6 | HRL93 | Cancer |
| Bromodichloromethane 75-27-4 |
80 | zero | 100 | cancer | 3 | HBV18 | 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 | ||
| 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 | ||||
| Chrysene (PAH) 218-01-9 |
|||||||
| 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 | ||
| 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 | |||||
| Dalapon (sodium salt) 75-99-0 |
200 | 200 | 200 | life-time | |||
| Dimethyl tetrachloroterephthalate (DCPA or Dacthal) 1861-32-1 |
70 | life-time | |||||
| Desvenlafaxine - free base 93413-62-8 |
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 |
| 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 | 10 | HRL94 | Cancer |
| Dichlorobenzene, 1,4- 106-46-7 |
75 | 75 | 75 | life-time | 50 | HBV19 | 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 | HRL11 | Subchronic |
| Dichloroethylene, 1,1- 75-35-4 |
7 | 7 | 6 | cancer | 200 | HBV18 | 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 | 40 | HRL13 | 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 | 5 | HRL94 | 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 | |||||
| Dimethenamid 87674-68-8 |
300 | HRL15 | 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 | HBV16 | 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 | 50 | HRL11 | Short Term |
| Ethylbenzene 100-41-4 |
700 | 700 | 700 | life-time | 40 | HBV18 | Short Term |
| Ethylene glycol 107-21-1 |
6000 | 10 day | 2000 | HRL11 | Subchronic | ||
| Ethylene glycol 107-21-1 |
6000 | 10 day | 2000 | HBV17 | 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 | 300 | HRL93 | Chronic | ||
| Fluorene 86-73-7 |
1000 | DWEL | 80 | HBV18 | Chronic | ||
| Fluoride 7681-49-4 |
4000 | 4000 | |||||
| Fonofos 944-22-9 |
10 | life-time | |||||
| Formaldehyde 50-00-0 |
1000 | life-time | 1000 | HRL94 | Chronic | ||
| 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- 110-54-3 |
4000 | 10 day | 400 | HRL94 | Chronic | ||
| Hexazinone 51235-04-2 |
400 | life-time | |||||
| HMX 2691-41-0 |
400 | life-time | |||||
| Imidacloprid 138261-41-3 |
3 | HBV19 | Short Term | ||||
| Indeno[1,2,3,-c,d]pyrene (PAH) 193-39-5 |
|||||||
| 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 | ||
| Lead (at tap) 7439-92-1 |
TT action level is 0.015 mg/L | zero | |||||
| Lead (at tap) 7439-92-1 |
0.1 for allergic dermatitis | 100 | |||||
| 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 | HRL93 | Chronic | ||
| Manganese 7439-96-5 |
300 | life-time | 100 | HBV18 | 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 | HRL11 | Subchronic | ||
| Metolachlor 51218-45-2 |
700 | life-time | 300 | HBV18 | Short Term | ||
| s-Metolachlor 87392-12-9 |
300 | HRL11 | Subchronic | ||||
| s-Metolachlor 87392-12-9 |
300 | HBV18 | Short Term | ||||
| Metolachlor ESA 171118-09-5 |
800 | HRL11 | Chronic | ||||
| Metolachlor ESA 171118-09-5 |
1,000 | HBV18 | Chronic | ||||
| Metolachlor OXA 152019-73-3 |
800 | HRL11 | Chronic | ||||
| Metolachlor OXA 152019-73-3 |
1,000 | HBV18 | 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 | HBV15 | Chronic | ||||
| Octylphenol, 4-tert 140-66-9 |
100 | HBV15 | 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) 375-73-5 |
7 | HRL11 | Chronic | ||||
| Perfluorobutane sulfonate (PFBS) 375-73-5 |
2 | HBV17 | Chronic | ||||
| Perfluorobutyrate (PFBA) 375-22-4 |
7 | HRL18 | Short Term | ||||
| Perfluorohexane sulfonate (PFHxS) 108427-53-8; 355-46-4; 3871-99-6 |
0.047 | HBV19 | Short Term | ||||
| Perfluorooctanoic Acid (PFOA) and salts 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 | ||
| Perfluorooctane Sulfonate (PFOS) and salts 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 1763-23-1; 29081-56-9; 70225-14-8; 2795-39-3; 29457-72-5 |
0.07 | life-time | 0.015 | HBV19 | Short Term | ||
| Phenanthrene (PAH) 85-01-8 |
|||||||
| 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 |
0.04 | HBV18 | 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 | 5 | HRLMCL | Chronic |
| Tetrachloroethylene 127-18-4 |
5 | zero | 10 | life-time | 4 | HBV14 | 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 | 200 | HRL11 | Short Term |
| Toluene 108-88-3 |
1000 | 1000 | 2000 | 10 day | 70 | HBV19 | Short Team |
| 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 | HBV18 | Short Term | ||||
| Trimethylbenzene, 1,2,4- 95-63-6 |
30 | HBV18 | Short Term | ||||
| Trimethylbenzene, 1,3,5- 108-67-8 |
10000 | 1 day | 100 | HRL09 | Short Term | ||
| Trimethylbenzene, 1,3,5- 108-67-8 |
10000 | 1 day | 30 | HBV18 | 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-chloroethyl) phosphate (TCEP) 115-96-8 |
5 | HRL13 | Cancer | ||||
| Tris(1,3-dichloroisopropyl) phosphate (TDCPP) 13674-87-8 |
0.8 | HBV13 | Cancer | ||||
| Uranium 7440-61-1 |
30 | zero | 20 | DWEL | |||
| Vanadium 7440-62-2 |
50 | HRL94 | Chronic | ||||
| Venlafaxine - free base 93413-69-5 |
10 | HBV15 | Short Term | ||||
| Venlafaxine - HCl salt 99300-78-4 |
10 | HBV15 | 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 | HRL11 | Short Term |
| Xylenes 1330-20-7 |
10000 | 10000 | 7000 | DWEL | 300 | HBV19 | 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
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 - Health-Based Guidance for Water
- Human Health-Based Water Guidance Table
