California Code, Health and Safety Code - HSC § 79490

(c)(1) If any material or substance that is generated from a site other than the Stringfellow Quarry, other than those necessary to implement the ongoing cleanup of the Stringfellow Quarry Class I Hazardous Waste Disposal Site, is treated, stored, transferred to, or disposed of at the Stringfellow Class I Hazardous Waste Site, then the department shall, no later than three business days before the treatment, storage, transfer, or disposal is scheduled to occur, notify the City of Jurupa Valley, the Riverside County Board of Supervisors, and the Secretary for Environmental Protection, and post a notification on its internet website.

(2) If the treatment, storage, transfer, or disposal of any material or substance pursuant to paragraph (1) does not occur on the time and date indicated in the notification provided by the department, the department shall provide the City of Jurupa Valley, the Riverside County Board of Supervisors, and the Secretary for Environmental Protection with subsequent notification of the new time and date, and post a notification on its internet website.