(1) The attorney general, or appropriate city or county prosecuting attorney may bring appropriate action to enjoin any violation of the:

(a) Prohibition on the sale or distribution of on-site sewage disposal system additives; or

(b) Conditions of RCW 70.118.080 Additives—Unfair practices, and WAC 246-273-060 (1) through (4).

(2) The department may rescind approval of an on-site sewage disposal system additive in response to:

(a) Demonstrated link to on-site sewage disposal system failure resulting from use (consistent with the manufacturer’s product-use instructions) of an approved additive; or

(b) Documentation that ingredients or formulation of an approved on-site sewage system additive differs from the ingredients or formulation information submitted for review, and upon which departmental approval was granted.