Monday, January 22, 2018

Changes To Minnesota Water Based Health Risk Limits

The Minnesota Department (MDH) is proposing amendments to the Health Risk Limits (HRLs) Rules and to adopt new and updated human health-based water guidance values into rule. The chemicals proposed for amendment include herbicides and other pesticides, polyaromatic hydrocarbons (PAH) and volatile organic compounds (VOC). Below is a listing of chemicals MDH is considering in its rule revision:

Chemical Name Previously adopted values in HRL Rule?
Acenaphthene Yes
Acetochlor Yes
Acetochlor ESA Yes
Acetochlor OXA Yes
Alachlor Yes
Chloroform Yes
Clothianidin No
Cyanazine Yes
cis-1,2-Dichloroethene Yes
2,4-Dichlorophenoxyacetic acid (2,4-D) Yes
Dieldrin Yes
Dinoseb No
S-Ethyl-N,N-dipropylthiocarbamate (EPTC) Yes
Fluoranthene Yes
Perfluorobutyrate (PFBA) Yes
Perfluorooctanoic Acid (PFOA) and Salts Yes
Perfluorooctane Sulfonate (PFOS) and Salts Yes
Pyrene Yes
Tetrahydrofuran No
Thiamethoxam No
1,1,1-Trichloroethane Yes
Vinyl Chloride Yes

MDH will accept written comments on the proposed rules amendments through Wednesday, February 21, 2018.