(2) Disposal site permits shall be issued for a period not to exceed 10 years, to be determined by the department and specified in the permit.
(3) Subject to the provisions of ORS chapter 183, the department may refuse to renew a permit unless the disposal site meets the requirements of subsection (1) of this section.
(4) The department may, consistent with applicable federal law, authorize in a disposal site permit the addition at a disposal site of liquid waste or water in a controlled fashion to enhance the decomposition of solid waste if the disposal site otherwise meets the requirements of ORS 459.005 to 459.105 and 459.205 to 459.385 and rules of the commission adopted pursuant thereto. For purposes of this subsection, "liquid waste" means any waste that, by using a paint filter liquids test method adopted by the commission, is determined to contain free liquids. [1971 c.648 §10; 1973 c.835 §142; 1979 c.773 §8; 1991 c.735 §26; 1993 c.560 §26; 2003 c.649 §2]