Wash. Rev. Code § 39.30.020
In addition to any other remedies or penalties contained in any law, municipal charter, ordinance, resolution or other enactment, any municipal officer by or through whom or under whose supervision, in whole or in part, any contract is made in willful and intentional violation of any law, municipal charter, ordinance, resolution or other enactment requiring competitive bidding or procurement procedures for consulting, architectural, engineering, or other services, upon such contract shall be held liable to a civil penalty of not less than three hundred dollars and may be held liable, jointly and severally with any other such municipal officer, for all consequential damages to the municipal corporation. If, as a result of a criminal action, the violation is found to have been intentional, the municipal officer shall immediately forfeit his or her office. For purposes of this section, "municipal officer" means an "officer" or "municipal officer" as those terms are defined in RCW 42.23.020(2).
RCW 39.30.020
Contracts by cities or towns, bidding requirements: RCW 35.23.352.