California Code, Public Resources Code - PRC § 48023

(a) If the board expends any funds pursuant to this article, the board shall, to the extent feasible, seek repayment from responsible parties in an amount equal to the amount expended, a reasonable amount for the board's cost of contract administration, and an amount equal to the interest that would have been earned on the expended funds.

(b) In implementing this article, the board is vested, in addition to its other powers, with all the powers of an enforcement agency under this division.

(c) The amount of any cost incurred by the board pursuant to this article shall be recoverable from responsible parties in a civil action brought by the board or, upon the request of the board, by the Attorney General pursuant to Section 40432.