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X 0 0 9400 Ward Parkway Kansas City, Missouri 64114-3319 Tel. 816 333-9400 fax: 816 333-3690 http://www.burnsmcd.com April 13, 2009 Mr. Michael Olsen Sears Holdings Corporation 3333 Beverly Road, 135-362A Hoffman Estates, Illinois 60179 Assessment Report & Certification Waste Oil Storage Tank Installation Sears Automotive Center #6791 5110 Pacific Avenue Stockton, California 95207 BMcD Project: 51440 Dear Mr. Olsen: RE� E�1/ED APR 2 3 2009 ENVIRONMENT HEALTH PERMITISERVICES Burns & McDonnell has been asked to perform an independent assessment of the used oil storage tank at the above facility in accordance with Title 22 CCR 66265.192(h)(1). The tank is a 500 -gallon steel tank located in the automotive service area and labeled "USED OIL ONLY." Afforda-Test was contracted to perform the on-site inspection and testing. Their report is included as Attachment 1 (Report dated 01-26-09). A summary of our assessment is as follows: Title 22 CCR 66265.192(k) Assessment Considerations (1) The rated capacity of the tank is 500 gallons and is fabricated from 10 gauge carbon steel. A diagram of the tank is included as Attachment 2. (2) The tank is a double-wall carbon steel vertical -cylindrical tank 48 inches in diameter and 65 inches tall and is model No. A60341 as manufactured by Dunn Industries, Inc. The tank is supported from a concrete floor slab which is more that adequate to support a fully loaded tank. The tank is secured to the floor with steel bolts to assist in resisting seismic forces or the unlikely event of floatation due to high water. The space is heated and is not susceptible to frost heave. (3) The tank is approximately 2 to 3 years old. (4) There is no leak detection equipment installed. The facility conducts daily visual inspections of the tank for evidence of leaks. (5) There is no corrosion protection equipment or devices installed. The painted surfaces have no corrosion on the carbon steel. (6) The tank is located inside the building and a trench drain that drains to an oil water separator prevents any spills from leaving the premises. (7) The tank is a double-wall tank. The facility relies on visual inspections of the area around the tank and through the open grating above the trench drain. (8) Piping and hoses are visually inspected daily by facility personnel and therefore meets the requirements of 22 CCR 66265.1920)(1) through 0)(3) and 66265.193(f). (9) There is a fill level gauge on the tank and pressured piping connected to the tank is equipped with an automatic air shut off valve to prevent overfill pursuant to the requirements under 22 CCR 66265.193(f)(4).