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.