The department may evaluate annually a number of the property decontamination projects performed by licensed contractors to determine the adequacy of the decontamination work, using the services of an independent environmental contractor or state or local agency. If a project fails the evaluation and inspection, the contractor is subject to a civil penalty and license suspension, pursuant to RCW
64.44.060 (4) and (5); and the contractor is prohibited from performing additional work until deficiencies have been corrected.