Cal. Pub. Resources Code § 3232
The supervisor or the district deputy shall, within 10 days after the receipt of a written report of abandonment, furnish the owner or operator with a written final approval of abandonment, or a written disapproval of abandonment, setting forth the conditions upon which the disapproval is based.
Failure to abandon in accordance with the approved method of abandonment, or failure to notify the supervisor or the district deputy of any test required by the final approval of abandonment to be witnessed by the supervisor, the district deputy, or his or her inspector, or failure to furnish the supervisor or the district deputy, at his or her request, with any information regarding the condition of the well, shall constitute sufficient grounds for disapproval of the abandonment.
Ca. Pub. Res. Code § 3232