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KITTITAS COUNTY SOLID WASTE ON-CALL <br />CLE ELUM TRANSFER STATION TANK REPLACEMENT <br /> SEPTEMBER 2025 Underground Storage Tank Removal <br /> 026500 - 2 <br /> <br />SECTION 026500 <br />UNDERGROUND STORAGE TANK REMOVAL <br />PART 1 GENERAL <br />1.01 SECTION INCLUDES <br />A. Removal and disposal of underground storage tanks, anchors and connected piping. <br />B. Testing soils for contamination. <br />C. Disposal of contaminated soil. <br />D. Backfilling. <br />1.02 RELATED REQUIREMENTS <br />A. Section 312316: Excavation. <br />B. Section 015713: Temporary Erosion and Sediment Control. <br />1.03 REFERENCE STANDARDS <br />A. 29 CFR 1910 - Occupational Safety and Health Standards; Current Edition. <br />1.04 QUALITY ASSURANCE <br />A. Perform work in accordance with local, state, and federal regulations and 40 CFR 280. <br />PART 2 PRODUCTS - NOT USED <br />PART 3 EXECUTION <br />3.01 PREPARATION FOR TANK REMOVAL AND DISPOSAL <br />A. Site Safety And Health Plan (SSHP): Furnish safety, health, and accident prevention provisions <br />and develop a Site Safety and Health Plan (SSHP). <br />B. Personnel Protection: Furnish appropriate personal safety equipment and protective clothing to <br />personnel. <br />1. Ensure that safety equipment and protective clothing is kept clean and well maintained. <br />C. Unforeseen Hazards: Notify the Engineer or Property Owner of any unforeseen hazard or <br />condition that becomes evident during work. <br />3.02 EXCAVATION <br />A. Notify Engineer at least 48 hours prior to start of tank removal work. <br />1. Stage operations to minimize the time that tank excavation is open and the time that soil is <br />exposed to the weather. <br />2. Provide protection measures around the excavation area to prevent water runoff and to <br />contain the soil within the excavation area. <br />3. Geotechnical Engineer shall be onsite during excavation around existing tank to look for <br />signs of contamination. <br />B. Excavation: Excavate as required to remove tanks and piping. <br />1. Geotechnical Engineer to be onsite during excavation of existing tank to look for signs of <br />contamination and test soil if necessary. <br />2. If contaminated soil is found, dispose of unacceptable soil in accordance with federal, <br />state, and local regulations. <br />3. All non-contaminated soil may be used as backfill for replacement tank and piping. <br />C. Excavation Methods: Select methods and equipment to remove soil to minimize disturbance to <br />areas beyond the limits of the excavation area. <br />3.03 TESTING <br />A. Geotechnical Engineer to test soil around and below tank if signs of contamination are visually <br />present.