Appendix A-3 Groundwater Cleanup Levels The following chart indicates the minimum cleanup levels for ground water, in terms of amount of individual hazardous substance per unit volume, for the hazardous substances listed. These cleanup levels shall remain in effect until the Department amends them. The Department may also establish more stringent cleanup levels for a specific site, when, based on a site-specific evaluation, the Department determines that such levels are necessary to protect human health and the environment. For substances not listed below, refer to the Wisconsin Public Health Groundwater Quality Standards Table I Preventive Action Limits.SubstanceCAS NumberCleanup Levels (in μg/L) unless otherwise notedAcetochlor34256-82-17Acetochlor ethane sulfonic acid + oxanilic acid (Acetochlor - ESA + OXA)187022-11-3 (ESA) 184992-44-4 (OXA)230Acetone67-64-19 mg/lAlachlor15972-60-82Alachlor ethane sulfonic acid (Alachlor − ESA)142363-53-920Aldicarb116-06-310Aluminum7429-90-5200Ammonia (as N)7664-41-79.7 mg/lAntimony7440-36-06Anthracene120-12-73000Arsenic7440-38-25Asbestos1332-21-47 million fibers per liter (MFL)Atrazine, total chlorinated residues1912-24-93*Bacteria, Total Coliform0**Barium7440-39-32 milligrams/liter (mg/l)Bentazon25057-89-0300Benzene71-43-25Benzo(b)fluoranthene205-99-20.2Benzo(a)pyrene50-32-80.2Beryllium7440-41-74Boron7440-42-81000Bromodichloromethane75-27-40.6Bromoform75-25-24.4Bromomethane74-83-910Butylate2008-41-5400Cadmium7440-43-95Carbaryl63-25-240Carbofuran1563-66-240Carbon disulfide75-15-01000Carbon tetrachloride56-23-55Chloramben133-90-4150Chlordane57-74-92Chlorodifluoromethane75-45-67 mg/l 0.7 mg/lChloroethane75-00-3400Chloroform67-66-36Chlorpyrifos2921-88-22Chloromethane74-87-330Chromium (total)7440-47-350Chrysene218-01-90.2Cobalt7440-48-440Copper7440-50-81300Cyanazine21725-46-21Cyanide, free157-12-5200Dacthal1861-32-170Dichlorodiphenyltrichloroethane (DDT)50-29-30.11, 2−Dibromoethane (EDB)106-93-40.05Dibromochloromethane124-48-1601, 2−Dibromo−3−chloropropane (DBCP)96-12-80.2Dibutyl phthalate84-74-21000Dicamba1918-00-93001,2−Dichlorobenzene95-50-16001,3−Dichlorobenzene541-73-16001,4−Dichlorobenzene106-46-775Dichlorodifluoromethane75-71-810001,1−Dichloroethane75-34-38501,2−Dichloroethane107-06-251,1−Dichloroethylene75-35-471,2−Dichloroethylene (cis)540-59-0701,2−Dichloroethylene (trans)540-59-01002,4−Dichlorophenoxyacetic Acid (2,4−D)94-75-7701,2−Dichloropropane78-87-551,3−Dichloropropene (cis/trans)542-75-60.4Di (2−ethylhexyl) phthalate117-81-76Dimethenamid/Dimethenamid−P87674-68-850Dimethoate60-51-522,4−Dinitrotoluene121-14-20.052,6−Dinitrotoluene606-20-20.05Dinitrotoluene, Total Residues225321-14-60.05Dinoseb88-85-771,4−Dioxane123-91-13Dioxin (2, 3, 7, 8-TCDD)1746-01-60.00003Endrin72-20-82EPTC759-94-4250Ethylbenzene107-06-25Ethyl ether60-29-71000Ethylene glycol107-21-114 mg/lFluoranthene206-44-0400Ethylene dibromide106-93-40.01Fluorene86-73-7400Fluoride16984-48-84 mg/lFluorotrichloromethane75-69-4490Formaldehyde50-00-01000Gross Alpha Particle Activity15.0 pCi/lGross Beta Particle Activity4.0 mrem/yrHeptachlor76-44-80.4Heptachlor epoxide1024-57-30.2Hexachlorobenzene118-74-11N−Hexane110-54-3600Hydrogen sulfide7783-06-0430Lead7439-92-15Lindane58-89-90.2Manganese7439-96-5300Mercury7439-97-62Methanol67-56-15000Methoxychlor72-43-540Methylene chloride75-09-25Methyl ethyl ketone (MEK)78-93-34 mg/lMethyl isobutyl ketone (MIBK)108-10-1500Methyl tert−butyl ether (MTBE)1634-04-460Metolachlor/s−Metolachlor51218-45-2100Metolachlor ethane sulfonic acid + oxanilic acid (Metolachlor − ESA + OXA)947601-85-6; 152019-73-31.3 mg/lMetribuzin21087-64-970Molybdenum7439-98-740Monochlorobenzene108-90-7100Naphthalene91-20-3100Nickel7440-02-0100Nitrate (as N)14797-55-810 mg/lNitrate + Nitrite (as N)14797-55-810 mg/lNitrite (as N)14797-65-01 mg/1N−Nitrosodiphenylamine62-75-97Polycyclic Aromatic Hydrocarbons0.1Pentachlorophenol (PCP)87-86-51Perchlorate14797-73-01Phenol108-95-22 mg/lPicloram1918-02-01500Polychlorinated biphenyls (PCBs)53469-21-90.03Prometon1610-18-0100Propazine139-40-210Pyrene129-00-0250Pyridine110-86-110Radium 226 and 2287440-14-45.0 pCi/lRadium 22613982-63-33.0 pCi/lSelenium7782-49-250Silver7440-22-450Simazine122-34-94Styrene100-42-5100Tertiary Butyl Alcohol (TBA)75-65-0121,1,1,2−Tetrachloroethane630-20-6701,1,2,2−Tetrachloroethane79-34-50.2Tetrachloroethylene127-18-45Tetrahydrofuran109-99-950Thallium7440-28-02Toluene108-88-340Total Petroleum Hydrocarbons1000Toxaphene8001-35-231,2,4−Trichlorobenzene120-82-1701,1,1−Trichloroethane71-55-62001,1,2−Trichloroethane79-00-55Trichloroethylene (TCE)79-01-652,4,5−Trichlorophenoxy−propionic acid (2,4,5-TP)93-72-1501,2,3−Trichloropropane96-18-460Trifluralin1582-09-87.5Trimethylbenzenes (1,2,4- and 1,3,5-combined)95-63-6, 108-67-8480Vanadium1314-62-130Vinyl chloride75-01-40.2Xylene31330-20-720* Total chlorinated atrazine residues includes parent compound and the following metabolites of health concern: 2-chloro-4-amino-6-isopropylamino-s-tiazine (formally deethylatrazine), 2-chloro-4-amino-6- ethylamino-s-triazine (formally deisopropylatrazine) and 2-chloro-4,6-diamino-s-triazine (formally diaminoatrazine).** Total coliform bacteria may not be present in any 100 ml sample using either the membrane filter (MF) technique, the presence-absence (P-A) coliform test, the minimal medium ONPG-MUG (MMO- MUG) test or not present in any 10 ml portion of the 10-tube multiple tube fermentation (MTF) technique.1"Cyanide, free" refers to the simple cyanides (HCN, CN-) and/or readily dissociable metal-cyanide complexes. Free cyanide is regulatorily equivalent to cyanide quantified by approved analytical methods for "amendable cyanide" or "available cyanide".2Dinitrotoluene, Total Residues includes the dinitrotoluene (DNT) isomers: 2,3-DNT, 2,4-DNT, 2,5- DNT, 2,6-DNT, 3,4-DNT, and 3,5-DNT.3Xylene includes meta-, orth-, and para-xylene combined.
