Health Risk Limit Rules for Groundwater
2012/2013 Amendment - Chemicals with Guidance Values in Proposed Rules Amendments
Health-based guidance values (HBVs) for the twelve chemicals below are included in the current proposed amendments to the Health Risk Limit (HRL) Rules (Minnesota Rules Parts 4717.7860 and 4717.7500). (See Proposed Rules: (PDF: 281KB/38 pages).
The proposed HRL values are identical to the current HBVs. The current HBVs, in addition to a toxicological summary sheet, can be viewed for each chemical by clicking on the links below.
| Chemical Abstract Service (CAS) Number |
Chemical Name |
| 21145-77-7 or 1506-02-1 |
6-Acetyl-1,1,2,4,4,7 hexamethyltetraline (AHTN or Tonalide) |
| 298-46-4 |
Carbamazepine |
| 56-23-5 |
Carbon tetrachloride |
| 107-06-2 |
1,2 -Dichloroethane |
| 156-60-5 |
trans -1,2-Dichloroethene |
| 134-62-3 |
N,N-Diethyl-3-methylbenzamide or N,N-Diethyl-meta-toluamide (DEET) |
| 123-91-1 |
1,4-Dioxane |
| 21087-64-9 |
Metribuzin |
| 91-20-3 |
Naphthalene |
| 120-82-1 |
1,2,4-Trichlorobenzene |
| 96-18-4 |
1,2,3-Trichloropropane |
| 115-96-8 |
Tris (2-chloroethyl) phosphate |

