SB 466: Drinking water: primary standard for hexavalent chromium: exemption.

This bill would prohibit a public water system from being determined in violation of the primary drinking water standard for hexavalent chromium if it meets the total chromium maximum contaminant level enforceable standard for drinking water in California while implementing a state-approved compliance plan or while the state board is reviewing the proposed plan. The bill aims to provide a temporary exemption for public water systems that are already meeting the chromium standard, allowing them to continue operating without immediate penalty. This would enable public water systems to implement compliance plans and allow the state board to review and approve these plans before imposing penalties.