Illinois · Regulations
Part 620 — GROUNDWATER QUALITY
28 sections
6 groups
2 sections filed directly here
- 35 Ill. Adm. Code 620.APPENDIX BB Procedures for Determining Hazard Indices for Class I: Potable Resource Groundwater for Mixtures of Similar-Acting Substances
- 35 Ill. Adm. Code 620.APPENDIX CC Guidelines for Determining When Dose Addition of Similar-Acting Substances in Class I: Potable Resource Groundwaters is Appropriate