Washington Administrative Code
Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508)
Chapter 173-200 - Water quality standards for groundwaters of the state of Washington
Section 173-200-080 - Evaluation
Current through Register Vol. 24-06, March 15, 2024
(1) The purpose of this section is to establish minimum requirements for evaluating the impacts of an activity on the groundwater quality to determine compliance with this chapter.
(2) If the department determines a potential to pollute the groundwater exists, the department shall request a permit holder or responsible person to prepare and submit for departmental approval a groundwater quality evaluation program for its activity. Each evaluation program shall be based on soil and hydrogeologic characteristics and be capable of assessing impacts on groundwater at the point of compliance.
(3) A groundwater evaluation program approved by the department may include, but not be limited to, any of the following:
(4) In the evaluation program the permit holder or responsible person shall include information on the following:
(5) When it is impractical to evaluate the impact of an activity at the designated point of compliance, for example when a criterion is less than the practical quantification limit, evaluation shall be designed and performed at an alternate location to provide a realistic estimate of conditions in the groundwater at a point of compliance.
(6) These evaluation requirements pertain to activities that are not already covered by state regulation which have specific monitoring requirements such as chapter 173-303 WAC, Dangerous waste regulations, chapter 173-304 WAC, Minimum functional standards for solid waste handling, and chapter 402-52 WAC, Uranium and/or thorium mill operation and stabilization of mill tailing piles.
(7) For those activities for which the department has not issued permits and that have the potential to pollute the groundwater, evaluation shall be conducted according to the following:
Statutory Authority: RCW 90.48.035. 90-22-023, § 173-200-080, filed 10/31/90, effective 12/1/90.