Cal. Health & Saf. Code § 2861
Before complying with the requirements of the notice, the owner or party in possession may appear at a hearing before the board at a time and place fixed by the board and stated in the notice. At the hearing the district board shall determine whether the initial finding as set forth in the notice is correct and shall permit the owner or party in possession to present testimony in his behalf. If, after hearing all the facts, the board makes a determination that a nuisance exists on the property, the board shall order compliance with the requirements of the notice or with alternate instructions issued by the board.
Any failure to comply with any such order of the board issued pursuant to this section shall subject the owner or party in possession, if other than the owner of record, to civil penalties of not to exceed five hundred dollars ($500) per day for each day such order is not complied with.
Ca. Health and Saf. Code § 2861