On April 16, 2020, the Board adopted amendments to Illinois’ primary drinking water regulations in 35 Ill. Adm. Code 611. The amendments are “identical in substance” to rule amendments adopted by the United States Environmental Protection Agency (USEPA) during the second half of 2018. Specifically, USEPA adopted approximately 100 new methods for demonstrating compliance with the National Primary Drinking Water Regulations. Most were updated methods appearing in the recent 23rd edition of Standard Methods for Examination of Water and Wastewater.
Publications 
