California Code, Health and Safety Code - HSC § 78305

(1) To provide the state share of a removal or remedial action pursuant to Section 104(c)(3) of the federal act (42 U.S.C. Sec. 9604(c)(3)) if the site is the subject of a final remedial action plan issued pursuant to Article 12 (commencing with Section 79195) of Chapter 5.

(2) To pay all costs of a removal or remedial action incurred by the state, or by any local agency with the approval of the director, in response to a release or threatened release of a hazardous substance at a site that is listed in the priority ranking of sites pursuant to Article 5 (commencing with Section 78760) of Chapter 4 and is the subject of a final remedial action plan issued pursuant to Article 12 (commencing with Section 79195) of Chapter 5, to the extent that the costs are not paid by responsible parties or are reimbursed by the federal act.

(3) To pay for site characterization of a release of hazardous substances, even if a remedial action plan has not been prepared, approved, adopted, or made final for that site.