Industrial wastewater; publicly owned treatment works.

Changed from self-reporting requirements to mandatory quarterly discharge monitoring for one year for facilities deemed potentially significant PFAS sources.

Extended reporting timeline from 90 days to 30 days after effective date for initial compliance, with quarterly monitoring required for one year.

Added new facility categories including those with PFAS contamination significantly impacting finished water levels, and expanded textile/tannery facility language.

Added specific laboratory testing requirements (Method 1633 or EPA-approved methods) and exemptions from environmental laboratory certification for PFAS monitoring.

Updated PFAS use definitions to include 'intentionally using' language and clarified what equipment use is excluded from reporting requirements.

Changed from requiring quarterly PFAS monitoring for specific facility types to requiring self-reporting of PFAS manufacture and use within 90 days of notification

Added confidentiality provisions allowing facilities to claim confidential treatment for certain report information under existing law

Removed quarterly monitoring requirements and method detection level provisions that were in the original introduced version

Established 90-day reporting deadline for industrial users to submit PFAS self-reports after notification from publicly owned treatment works

Clarified that PFAS use includes intentional use as product ingredients or production aids but excludes use of manufacturing equipment containing PFAS

Added requirement for publicly owned treatment works to forward facility reports to the Department within 30 days of receipt