On October 19, 2023, the Board adopted amendments to Illinois’ primary drinking water regulations at 35 Ill. Adm. Code 611. The amendments are “identical in substance” to amendments adopted by the United States Environmental Protection Agency (USEPA) under the federal Safe Drinking Water Act (SDWA) during the second half of 2020 and the first half of 2021. Among its amendments, USEPA revised standards for lead in plumbing fixtures and plumbing materials, adopted the Lead and Copper Rule Revisions (LCRR), and approved new alternative test procedures (ATPs) for demonstrating compliance with the National Primary Drinking Water Regulations.
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