Health Risk Limits Rules, 2016/2017 Amendments - Contaminants - EH: Minnesota Department of Health

Health Risk Limits Rules for Groundwater
2016/2017 Amendments - Contaminants

February 2017:

MDH proposes amendments to the Health Risk Limits (HRLs) Rules approximately every two years. This allows new and updated human health-based water guidance values to be considered for adoption into rule.

Information about contaminants under consideration for the next amendments proposal is available below. As MDH continues to work on the chemicals under review, additional chemicals could be added to this list if the resulting water guidance is eligible for rule. Further, chemicals could be removed from the list if there is need to re-evaluate the existing guidance.

Chemical Abstract Service
(CAS) Number
Chemical Name
Previously adopted values in HRL Rule? (year adopted)
83-32-9 Acenaphthene Yes (1993)
(Formerly 205510-53-8)
Clothianidin No
159-59-2 cis-1,2-Dichloroethene Yes (2009)
94-75-7 2,4-Dichlorophenoxyacetic acid (2,4-D) Yes (1993)
88-85-7 Dinoseb No
759-94-4 S-Ethyl-N,N-dipropylthiocarbamate (EPTC) Yes (1993)
206-44-0 Fluoranthene Yes (1993)
78-83-1 Isobutanol No
129-00-0 Pyrene Yes (1993)
109-99-9 Tetrahydrofuran No
153719-23-4 Thiamethoxam No


Updated Tuesday, February 14, 2017 at 09:54AM