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AB-1031

AB-1031: Changes to Rules for Geothermal Waste

Last scannedAug 24, 2026, 7:05 AM

In one sentence

This law removes certain limits on the exemption from hazardous waste rules for geothermal energy projects and sets a maximum fee of $10 per ton for any remaining fees.

Removes current time and storage limits that restrict when geothermal waste is exempt from hazardous waste laws, such as requirements about piping systems or how long waste can stay in lined surface impoundments.
Sets a cap on the generation and handling fee at no more than $10 per ton for geothermal waste not covered by the exemption.
Expands the scope of the existing exemption so it applies to geothermal waste in situations where limits previously applied.

Companies or individuals who generate, explore for, develop, or produce geothermal energy resources.
The Department of Toxic Substances Control regarding its regulation duties.
The California Department of Tax and Fee Administration regarding fee collection.
The Board of Environmental Safety regarding the establishment of fee rates.

The text does not state a specific date when these changes will take effect.
The bill removes limits related to piping systems and storage times but does not list other potential conditions for the exemption that might exist outside those examples.
The source material does not explain how much money this change might save or cost.

Plain language

Geothermal waste: Waste created during the exploration, development, or production of geothermal energy that does not come from drilling for resources.
Generation and handling fee: A payment required by law for each site where hazardous waste is produced.
Surface impoundment: An area on the ground, often lined, used to hold or store liquid waste.

Official record

Source attached

Hazardous waste control laws: exemption: geothermal resources.

Official activity