"Improvement" means any activity that is necessary or incidental to the prevention, mitigation, abatement, or control of a geologic hazard, including, but not limited to, all of the following:
Ca. Pub. Res. Code § 26505
"Improvement" means any activity that is necessary or incidental to the prevention, mitigation, abatement, or control of a geologic hazard, including, but not limited to, all of the following:
Ca. Pub. Res. Code § 26505