At today’s State Water Resources Control Board (SWRCB) meeting Division of Drinking Water (DDW) staff presented the enclosed Regulatory Priorities for 2020. (DDW Reg Priorities_2020) The SWRCB adopted the Regulatory Priorities as presented.
Some highlights from the enclosed:
- Page 3, item 2b. Revised Lead DLR. DDW anticipates proposing in 2020 a revised Detection Limit for Purposes of Reporting (DLR) for lead (“….and several other metals”). The revised DLR for lead “may” be lowered from 5 parts per billion (ppb) to 1 ppb.
- Page 4, item 4. Revised Total Coliform Rule. DDW plans to publish the draft Revised Total Coliform Rule for public comment during “spring 2020.”
- Page 5, item 9. Revised Perchlorate DLR. DDW staff completed a survey of laboratory perchlorate capabilities. The results “demonstrated an ability to lower the DLR without sacrificing capacity, but not to a level equal to or less than the PHG at this time….The proposed revision to the DLR is slated for Board consideration in June 2020.” Background: The MCL for perchlorate is 6 ppb, the PHG is 1 ppb, and the DLR is 4 ppb.
With regard to dates for the three public workshops on DDW’s White Paper on “Economic Feasibility Analysis in Consideration of a Hexavalent Chromium MCL,” ACWA staff indicate the following information was reported at the Board’s meeting:
- April 15 – Diamond Bar
- April 17 – Rancho Cordova (Central Valley Water Board’s headquarters)
- April 20 – Fresno
The workshop dates and more detailed information on time and location have not yet been posted by DDW.
