Sea level rise and groundwater rise: contaminated sites: report.

Assembly Member Boerner's environmental assessment measure directs state regulators to catalog contaminated sites facing risks from rising sea and groundwater levels, requiring a comprehensive vulnerability report to the Legislature by January 2027.

The Department of Toxic Substances Control and State Water Resources Control Board must jointly evaluate contaminated sites under their oversight to identify locations susceptible to impacts from sea level rise and groundwater elevation changes. Their mandated report must detail both completed vulnerability assessments and timelines for pending evaluations across affected sites. The reporting requirement expires January 1, 2031, unless extended by future legislation.

The measure builds upon existing regulatory frameworks for hazardous substance management while adding specific requirements for agencies to examine how changing water conditions may affect contaminated sites. While the bill creates new reporting obligations for state agencies, it does not allocate additional funding, requiring departments to conduct assessments and produce the report using current resources.