LRP - Licenses

LRP - Regulations

LRP - Permits

Recreation - Statewide

Recreation - Trapping

Recreation - Fishing

Recreation - Hunting

Env. Protection - Management

Env. Protection - Emergency

Env. Protection - Resources

To sign up for updates or to access your subscriber preferences, please enter your contact information below.

the Permit Primer.
navigation tips for the Permit Primer.
applicable codes and statutes.
about pollution prevention.
Contact information
DNR Hazardous waste staff

Hazardous waste

Review all of your wastes to determine if they are toxic. If they are toxic, then check the "Hazardous Waste" box on your waste inventory sheets.

Is your waste toxic?

Toxicity is determined using a test called the toxicity characteristic leaching procedure (TCLP) which simulates how a chemical would act if deposited in a landfill. If your wastes contain an unknown concentration of any of the following contaminents you should review your records, contact similar businesses or contact the manufacturer to determine if TCLP data exists on the waste in question. If no data is available, you may need to have a TCLP test conducted by a laboratory.

Contaminant Regulatory level (mg/L) Contaminant Regulatory level (mg/L)
arsenic 5.0 barium 100.0
cadmium 1.0 chromium 5.0
lead 5.0 mercury 0.2
selenium 1.0 silver 5.0
chlordane 0.03 2,4-D 10.0
endrin 0.02 heptachlor (and its epoxide) 0.008
lindane 0.4 methoxychlor 10.0
toxaphene 0.5 2,4,5-TP (silvex) 1.0
o-cresol 200.0 m-cresol 200.0
p-cresol 200.0 cresol 200.0
1,4-dichlorobenzene 7.5 2,4-dinitrotoluene 0.13
hexachlorobenzene 0.13 hexachlorobutadiene 0.5
hexachloroethane 3.0 nitrobenzene 2.0
pentachlorophenol 100.0 pyridine 5.0
2,4,5-trichlorophenol 400.0 2,4,6-trichlorophenol 2.0
benzene 0.5 carbon tetrachloride 0.5
chlorobenzene 100.0 chloroform 6.0
1,2-dichloroethane 0.5 1,1-dichloroethylene 0.7
methyl ethyl ketone 200.0 tetrachloroethylene 0.7
trichloroethylene 0.5 vinyl chloride 0.2

If you do need laboratory services, please refer to the Wisconsin certified lab lists.

Continue - button

Last Revised: Tuesday August 20 2013