Health & Saf. Code, § 25400.20

(a) Upon completing an inspection pursuant to Section 25400.19, the local health officer shall immediately determine whether the property is contaminated.

(b) If the local health officer determines the property is contaminated, the local health officer shall take the actions specified in Section 25400.22.

(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:

(1) Findings and conclusions.

(2) Name of the property owner, and, if applicable, mailing and street address or space number of the property or vehicle identification number of the recreational vehicle.

(3) Parcel identification number, if applicable.

(d) Within 10 working days after preparing a written documentation of the determination made pursuant to subdivision (c) that the property is not contaminated, the local health officer shall send a copy of the documentation to the property owner, and to the local agency responsible for enforcement of the State Housing Law (Part 1.5 (commencing with Section 17910) of Division 13).

(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:

(1) Except as provided in paragraph (3), if the land on which the mobilehome, manufactured home, or recreational vehicle is located is contaminated, the owner of the mobilehome park or special occupancy park shall be held responsible for compliance with this chapter.

(2) Except as provided in paragraph (3), if the mobilehome, manufactured home, or recreational vehicle is contaminated, the registered owner of the mobilehome, manufactured home, or recreational vehicle shall be held responsible for compliance with this chapter.

(3) If both the land on which the mobilehome, manufactured home, or recreational vehicle is located is contaminated and the mobilehome, manufactured home, or recreational vehicle itself is contaminated, the local health officer shall determine, based on the local health officer’s findings and determinations, whether the owner of the mobilehome park or special occupancy park or the registered owner of the mobilehome, manufactured home, or recreational vehicle, or both, shall be held responsible for compliance with this chapter. The local health officer shall submit a notice to each owner determined to be responsible for remediation, as to the owner’s individual responsibility pursuant to this chapter.

(4) If the local health officer makes the determination specified in paragraph (2) or (3), the mobilehome park or special occupancy park manager and the owner of the land on which the mobilehome, manufactured home, or recreational vehicle is located shall also receive a copy of any notice served on the registered owner, lessee, renter, or occupant of the mobilehome, manufactured home, or recreational vehicle.