Hazardous waste: underground storage tanks.

The California Assembly Committee on Environmental Safety and Toxic Materials proposes significant changes to hazardous waste management regulations through amendments that modify permit requirements, laboratory waste handling procedures, and underground storage tank definitions. The legislation establishes a framework allowing generators to treat specific hazardous wastes onsite without full permits, provided they follow prescribed safety protocols and volume limitations.

For laboratory settings, the bill creates a structured approach to hazardous waste treatment, permitting facilities to handle up to 55 gallons of standard laboratory waste or one quart of acutely hazardous materials without additional permits. Treatment must occur within 10 days of generation using procedures from the National Research Council, peer-reviewed journals, or manufacturer guidelines. The amendments require detailed recordkeeping, staff training, and prompt notification to regulatory authorities.

The legislation also revises underground storage tank regulations, expanding exemptions to include tanks containing hydraulic or dielectric fluids used in closed-loop mechanical systems for elevators, cooling systems, and similar applications. These changes align with existing environmental protection standards while acknowledging technological advances in industrial equipment. The amendments maintain strict requirements for leak detection, containment, and regulatory oversight through Certified Unified Program Agencies.

Generators must submit notifications 60 days before beginning treatment activities and maintain comprehensive records of waste management practices. The Department of Toxic Substances Control retains authority to revoke authorizations if operations endanger public health or the environment. These modifications aim to streamline regulatory compliance while preserving environmental safeguards through enhanced monitoring and reporting requirements.