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C OOK NVIRONMENTAL S Ii CONTIRACT93P 092 13197 ceived January 21, 2022 Re3/31/2022EHD Virginia Jones Environmental Protection Manager USA Waste of California, Inc. 8491 Fruitridge Road Sacramento, CA 95826 Subject: Hazardous Waste Tank Assessment Central Valley Waste Services 1333 E. Turner Road, Lodi, CA 95241 Dear Ms. Jones: Cook Environmental Services, Inc. (CES)was retained by USA Waste of California,Inc.to assess one above ground storage tank (AST)that contains used oil at the Central Valley Waste Services transfer facility located at 1333 E. Turner Road in Lodi, California. The AST has a volume of 1,000 gallons and is stored next to the vehicle maintenance facility. An inspection of the AST was conducted by Tian Cook of CES on January 19,2022. The purpose of the inspection was to assess the current physical condition of the AST system and to gather information required for a Hazardous Waste Tank Assessment pursuant to 22 CCR §66265.192(k). For ease of review, the Assessment is organized in the same order as the checklist provided in 22CCR §66265.192(k). • Tank description, configuration, and gross capacity 122 CCR §66265.192(k)(1)): The AST is a shop-fabricated box type tank manufactured by Containment Solutions and is a Lube Cube model LCAA 101 MDSOOO. The outside dimensions are 130" L x 35" W x 66" H. Tank dimensions are also shown on the design drawing in Attachment A. The tank is in the wash bay next to the vehicle maintenance facility. The wash bay is a covered structure that prevents rainfall from contacting the AST. The AST is UL 142 listed and meets the NFPA 30 Standard. The double-wall steel AST has an operating capacity of 1,400-gallons. • Design standard if available to which tank and ancillary equipment was designed (22 CCR §66265.192(k)(2)) The AST is constructed and listed in accordance with Underwriters Laboratories, Inc., UL 142, utilizing steel inner and outer tanks. ■ Material of construction f 22 CCR §66265.192(k)(2)(a)I Primary and secondary tanks are constructed of mild steel. • Material thickness and method used to determine thickness f2 CCR§66265.192(k)(2)(b)) Primary and secondary tanks are 10 gauge (0,1345 inches). Measurements specified by manufacturer. • Description of tank system piping (material,diameter) {22 CCR §66265.192(k)(2)(c)l: The tank is filled through a 2" fill port on top of the tank. The fill port is connected to a