Cal. Health & Safety Code § 25400.20
(c) If the local health officer determines that the property is not contaminated, within three working days after making that determination, the local health officer shall remove all notices posted pursuant to Section 25400.18 and prepare a written documentation of this determination, which shall include all of the following:
(e) In the case of a property specified in paragraph (2) of subdivision (v) of Section 25400.11, the local health officer shall, upon completing the inspection pursuant to Section 25400.19, determine the responsibility for the remediation required pursuant to this chapter in accordance with the following: