(1) The department shall develop, and shall update at least once every five years, a state hazardous waste management plan. The plan shall include, but shall not be limited to, the following elements:
(a) A state inventory and assessment of the capacity of existing facilities to treat, store, dispose, or otherwise manage hazardous waste;
(b) A forecast of future hazardous waste generation;
(c) A description of the plan or program required by RCW
70A.300.270 to promote the waste management priorities established in RCW
70A.300.260;
(d) Siting criteria as appropriate for hazardous waste management facilities, including such criteria as may be appropriate for the designation of eligible zones for designated zone facilities. However, these criteria shall not prevent the continued operation, at or below the present level of waste management activity, of existing facilities on the basis of their location in areas other than those designated as eligible zones pursuant to RCW
70A.300.370;
(e) Siting policies as deemed appropriate by the department; and
(f) A plan or program to provide appropriate public information and education relating to hazardous waste management. The department shall ensure to the maximum degree practical that these plans or programs are coordinated with public education programs carried out by local government under RCW
70A.300.350.
(2) The department shall seek, encourage, and assist participation in the development, revision, and implementation of the state hazardous waste management plan by interested citizens, local government, business and industry, environmental groups, and other entities as appropriate.
(3) Siting criteria shall be completed by December 31, 1986. Other plan components listed in subsection (1) of this section shall be completed by June 30, 1987.
(4) The department shall incorporate into the state hazardous waste management plan those elements of the local hazardous waste management plans that it deems necessary to assure effective and coordinated programs throughout the state.