If the city takes any corrective action which, in the judgement of either the fire chief or his appointed officer, is reasonably necessary to remedy or prevent an imminent substantial danger to public health, domestic livestock, wildlife or the environment arising out of any unauthorized disposal or release of any hazardous waste or substance, the following described persons shall be jointly and severally liable to the city for the cost incurred by it in taking such corrective action:

(a) The person or persons whose negligent or wilful act or omission proximately caused such disposal or release;

(b) The person or persons who owned or had custody or control of the hazardous waste or substance at the time of such disposal or release, without regard to fault or causation; and

(c) The person or persons who owned or had custody or control of the container which held such hazardous waste or substance at the time of or immediately prior to such disposal, or release, without regard to fault or causation. (Ord. No. 1588, § 1 (part).)