Wash. Rev. Code § 90.48.531
The department shall identify the leaching tests utilized for evaluating the potential impacts to water quality in situations where fill material is imported. The tests may include those identified in the soil clean-up rules adopted by the department under chapter 70A.305 RCW. Within existing resources, the department shall assess whether this list of leaching tests provides appropriate methods for analyzing water quality impacts for all types of projects and in all circumstances where fill material is imported. The department shall also identify any gaps in leaching test methodology. The department shall report both the leaching test list and the list of test methodology gaps to the appropriate committees of the legislature by December 31, 2003.
RCW 90.48.531
Effective date-2003 c 210: See note following RCW 90.48.530.