8.34.050 Underground Storage Tank Removals.
A. The Director shall be present at the facility during any or all of the tank and contamination removal process.
B. The operator shall provide safe access in accordance with Washington State Department of Labor and Industry standards to all areas of the facility necessary for inspection of the tank's removal.
C. The operator of the facility shall demonstrate to the satisfaction of the Director that no contamination has occurred. The Director shall inspect for signs of current or historical contaminant release, such as, but not limited to: holes, punctures, or cracks in the tank, soil staining, discoloration, or sheen. Soil samples shall be taken by the operator upon the direction of the Director, and shall be analyzed for all constituents of the previously-stored hazardous materials and their transformation or breakdown products.
D. If the Director finds the facility to be:
1. Free of contaminants, the operator shall backfill the tank hole with clean fill material as defined by the Department.
2. Unacceptable, due to contamination, the operator shall be responsible for additional soil and/or water testing, the removal of contaminated soil and its proper disposal, and the treatment of contaminated groundwater, as required by the Director.