Wash. Rev. Code § 72.23.060
The superintendent is authorized to accept and receive from any person or organization gifts of money or personal property on behalf of the state hospital under his or her charge, or on behalf of the patients therein. The superintendent is authorized to use such money or personal property for the purposes specified by the donor where such purpose is consistent with law. In the absence of a specified use the superintendent may use such money or personal property for the benefit of the state hospital under his or her charge or for the general benefit of the patients therein. The superintendent shall keep an accurate record of the amount or kind of gift, the date received, and the name and address of the donor. The superintendent may deposit any money received as he or she sees fit upon the giving of adequate security. Any increase resulting from such gift may be used for the same purpose as the original gift. Gratuities received for services rendered by a state hospital staff in their official capacity shall be used for the purposes specified in this section.
RCW 72.23.060