Health Risk Limits Rules for Groundwater
Statement of Need and Reasonableness

February 2023

The Statement of Need and Reasonableness (SONAR) contains detailed information on the Health Risk Limits proposed rule amendments.

Download a copy from the links below. If you need a paper copy mailed to you, please Contact Health Risk Assessment.

Health Risk Limits SONAR (full document with all appendices) (PDF)

Health Risk Limits SONAR (main body of document and Appendices A-D) (PDF)

Health Risk Limits SONAR (Appendices E and F only, Appendix E Includes Toxicological Summaries by chemical) (PDF)