Hexavalent Chromium MCL (SWRCB-DDW-21-003)
Hexavalent Chromium Information
Final Environmental Impact Report
Sections Affected
Sections Affected: California Code of Regulations, Title 22, sections 64415, 64431, 64432, 64447.2, 64463.4, 64465, and 64481.
Status of Proposal
This rulemaking is in progress.
Inquiries regarding the contents of this regulation may be directed to Bethany Robinson (Bethany.Robinson@waterboards.ca.gov) and Melissa Hall (Melissa.Hall@waterboards.ca.gov).
Summary of Rulemaking Proceedings
- Standardized Regulatory Impact Assessment (SRIA) Submitted to Department of Finance: 13 December 2022
- SRIA (see Initial Statement of Reasons, Attachment 2, for updated version following Department of Finance comments)
- DF-131
- Notice of Proposed Rulemaking Published: (English | Español) 16 June 2023
- Initial Statement of Reasons (ISOR)
- Text of Proposed Regulations
- Revised Notice of Proposed Rulemaking (English | Español): 21 July 2023
- Second Revised Notice of Proposed Rulemaking: 1 August 2023
- Administrative Procedure Act Public Hearing: 2 August 2023
- Third Revised Notice of Proposed Rulemaking: 4 August 2023
- Close of 45-Day Public Comment Period: 18 August 2023
- Notice of Public Availability of Changes to Proposed Rulemaking (English | Español): 22 November 2023
- Changes to Text of Proposed Regulations
- ISOR Addendum
- Close of 15-Day Public Comment Period: 15 December 2023
- Notice of Public Availability of Additional Documents Relied Upon (English | Español): 31 January 2024
- OEHHA. (2023). Public Review Draft of a Proposed Health-Protective Concentration for the Noncancer Effects of Hexavalent Chromium in Drinking Water. California Environmental Protection Agency, Office of Environmental Health Hazard Assessment.
- SWRCB.(2024). Consolidation and Alternatives Analysis. State Water Resources Control Board
- Revised Notice of Public Availability of Additional Documents Relied Upon (English | Español): 14 February 2024
- Attachment 1 to Consolidation and Alternatives Analysis
- Close of 15-Day Public Comment Period: 4 March 2024
- Board Adoption Meeting: 17 April 2024
- Agenda
- Draft Resolution
- Final Environmental Impact Report
- Appendix A – Revised Draft EIR Appendix A (Proposed Regulations)
- Appendix B – Notice of Preparation Comment Letters
- Appendix C – Revised Draft EIR Appendix C (CEQA Analysis Using SDWIS and GIS Data)
- Appendix D – Existing Treatment System Information
- Appendix E – Alternative MCL Source Maps
- Appendix F – Comment Letters and Public Meeting Transcript
- Draft Responsive Summary
- Board staff presentation slides (English | Español)
- Certified Resolution 2024-0015
- Date Filed with Office of Administrative Law: TBD
- Approved by Office of Administrative Law: TBD
- Filed with the Secretary of State: TBD
- Effective Date: TBD