Regulatory Update Library
Drinking water regulatory developments, explained.
Plain-language summaries of federal and state drinking water changes affecting public water systems.
EPA updates drinking water guidance Federal Drinking Water Program
EPA revised its drinking water program guidance page.
Who is affected: Community water systems in California
Important dates: Effective immediately
August 11, 2026
· Source
Want alerts only when a change affects
your water system?
Orevant monitoring matches every update against your system type, state, size, and source water.