On June 16, 2023 the Division of Drinking Water (DDW) posted a Notice of Proposed Rulemaking (NPRM) proposing a Maximum Contaminant Level (MCL) of 10 µg/L for hexavalent chromium (CrVI). The documents posted at that time were the NPRM, Title 22 regulatory text and the Initial Statement of Reasons (ISOR) along with a number of attachments to the ISOR. Yesterday, DDW posted an errata sheet for the ISOR (copy of the errata sheet is here (CrVI Proposed MCL_ISOR Errata Sheet_2023-07-31 )).
DDW will hold a public hearing on the proposed CrVI MCL on August 2, 2023, starting at 1:00 pm.
The original public comment period was 45-days, with a deadline of August 4, 2023 to submit written comments. Also enclosed is the Revised NPRM indicating that the deadline to submit written comments has been extended one week to August 11, 2023 (NPRM_Second Revised_notice_Cr6 MCL_080123 ).