California Code, Health and Safety Code - HSC § 25515.2

(a) Notwithstanding Section 25515, a business that violates this article is liable to a unified program agency for an administrative penalty not greater than two thousand dollars ($2,000) for each day in which the violation occurs. If the violation results in, or significantly contributes to, an emergency, including a fire or health or medical problem requiring toxicological, health, or medical consultation, the business shall also be assessed the full cost of the county, city, fire district, local EMS agency designated pursuant to Section 1797.200, or poison control center as defined by Section 1797.97, emergency response, as well as the cost of cleaning up and disposing of the hazardous materials.

(b) Notwithstanding Section 25515, a business that knowingly violates this article after reasonable notice of the violation is liable for an administrative penalty, not greater than five thousand dollars ($5,000) for each day in which the violation occurs.

(c) When a unified program agency issues an enforcement order or assesses an administrative penalty, or both, for a violation of this article, the unified program agency shall utilize the administrative enforcement procedures, including the hearing procedures, specified in Sections 25404.1.1 and 25404.1.2.