(a) Notwithstanding any other provision of this chapter, the costs incurred by a state agency to take a hazardous substance response action at the BKK Landfills Site in the City of West Covina shall be deemed to be a contribution towards any potential liability for response costs or damages imposed pursuant to state law upon a state agency that arranged for the disposal or treatment of a hazardous substance at that site.
(b) The Legislature declares its intent that the costs incurred by a state agency to take action in response to a hazardous substance release at the BKK Landfills Site in the City of West Covina shall be deemed to be a contribution towards any potential liability for response costs or damages imposed pursuant to the federal act upon a state agency that arranged for the disposal or treatment of a hazardous substance at that site.