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Wisconsin Administrative Code (Last Updated: January 10, 2017) |
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Agency NR. Department of Natural Resources |
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Chapters 800-. Environmental Protection – Water Supply |
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Chapter 809. Safe Drinking Water |
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SubChapter I. Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants |
Section 809.07. Maximum contaminant level goals for primary contaminants.
Latest version.
- (1) Maximum contaminant level goals (MCLGs) are zero for the following contaminants:Giardia lambliaCryptosporidiumLegionellaEscherichia coliVirusesLeadArsenicChloroformBromodichloromethaneBromoformBromateDichloroacetic acidCombined radium-226 and radium-228Beta particle and photon radioactivityGross alpha particle activity (excluding radon and uranium)Uranium(2) Maximum contaminant level goals (MCLGs) which are less than the MCLs are as follows: - See PDF for tableAcrylamide 0.00001Alachlor 0.0004Benzene 0.001Benzo[a]pyrene 0.000002Carbon tetrachloride 0.0003Chlordane 0.00003Chlorite 0.8Dibromochoromethane 0.06Dibromochloropropane 0.00003Di(2-ethylhexyl)phthalate 0.0031,2-Dichloroethane 0.00041,2-Dichloropropane 0.0005Epichlorohydrin 0.004Ethylene Dibromide 0.0000004Heptachlor 0.000008Heptachlor Epoxide 0.000004Hexachlorobenzene 0.00002Pentachlorophenol 0.0003Polychlorinated biphenyls (PCBs) 0.0000052,3,7,8-TCDD (Dioxin) 2 x 10 -10Tetrachloroethylene 0.0007Thallium 0.0005Toxaphene 0.000031,1,2-Trichloroethane 0.003Trichloroethylene 0.003Vinyl chloride 0.000015Atrazine, (total chlorinated residue) 1 0.003Antimony 0.006Asbestos 7 Million fibers/L
(longer than 10
micrometers)Barium 2Beryllium 0.004Cadmium 0.005Carbofuran 0.04Chromium 0.1Copper 1.3Cyanide(as free Cyanide) 0.22,4-D 0.07Dalapon 0.2o-Dichlorobenzene 0.6para-Dichlorobenzene 0.0751,1-Dichloroethylene 0.007cis-1,2-Dichloroethylene 0.07trans-1,2-Dichloroethylene 0.1Dichloromethane 0.005Di(2-ethylhexyl)adipate 0.4Dinoseb 0.007Diquat 0.02Endothall 0.1Endrin 0.002Ethylbenzene 0.7Fluoride 4.0Glyphosate 0.7Hexachlorocyclopentadiene 0.05Lindane 0.0002Mercury 0.002Methoxychlor 0.04Monochlorobenzene 0.1Nickel 0.1Nitrate 10 (as Nitrogen)Nitrite 1 (as Nitrogen)Nitrate+Nitrite 10 (as Nitrogen)Oxamyl 0.2Picloram 0.5Selenium 0.05Simazine 0.004Styrene 0.1Toluene 11,2,4-Trichlorobenzene 0.071,1,1-Trichloroethane 0.21 Atrazine, total chlorinated residue includes atrazine and its metabolites, diaminoatrazine, diethylatrazine and deisopropylatrazine.(4) If a contaminant is not detected in a sample and if the limit of detection is higher than the MCLG, the MCLG shall be considered not to have been exceeded.(5) Notwithstanding any other provisions of this chapter, if a contaminant listed in sub. (2) is detected at a concentration above the MCLG but below the MCL for that contaminant, the following shall apply:(a) The water supplier shall collect a confirmation sample to verify the presence of the contaminant, unless collected by the department.(b) Based upon verified results and following a determination by the department on the need for further action as specified in par. (c) , the water supplier shall provide public information to its customers indicating the analytical results achieved and the health effects of ingesting the substance at the concentration found.(c) The department may require the water supplier to prepare and submit a report which does all of the following:1. Assesses the cause and significance of the problem.2. Analyzes the cost, effectiveness and feasibility of alternatives for treating the water or developing alternative water sources.(d) If, based on the conclusions of the report if required under par. (c) , the department determines that action is necessary to protect public health, it may require the water supplier to treat or replace the water source.
CR 09-073
: cr.
Register November 2010 No. 659
, eff. 12-1-10;
CR 15-049
: am. (1)
Register March 2016 No. 723
, eff. 4-1-16.