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RECEIVEL) JAN 26 2015 ENVIRONMENTAL SECTION 3—TANK SYSTEM ASSESSMENT WPAITu n=40r"ACAIT Facilities which generate more than 270 gallons of hazardous waste per month and store the hazardous waste (in this case used oil) in a tank are required to have a written assessment of the hazardous waste storage tank. The hazardous waste storage tank assessment must be reviewed and certified by a State of California registered professional engineer (P.E.). Furthermore, the hazardous waste storage tank must be reassessed and recertified every five years. This assessment serves as an initial assessment and certification. 3.1 Tank Summary [CCR§66265.192(k)(1)] The double wall tank is in a horizontal configuration and has a stamped name plate identifying it as a 750 gallon Lube Cube tank, serial number 463403. Lube Cube tanks are manufactured by Containment Solutions, Inc. and listed in accordance with Underwriters Laboratories, Inc.Standard UL 142. The tank is constructed of A36 carbon steel or ASTM A-569 according to the manufacturer's specifications. The tank is located in the southeast corner of the service pit level of the building, located at 500 E. Kettleman Lane in Lodi, California. The tank is free standing and is seismically braced to limit lateral displacement of the tank. Refer to Figure 2 Site Plan for the service pit layout and tank location. 3.2 Tank Design [CCR§66265.192(k)(2) & 192(a)(1)] The tank is constructed in accordance with UL 142,a recognized standard for construction of aboveground tanks storing flammable or combustible liquids.Tank design and construction details are presented below. 3.2.1 Containment Solutions (Lube Cube) 3.2.1.1 Material of Construction The primary tank is constructed of A36 carbon steel or ASTM A-569 according to manufacturer's specifications. 3.2.1.2 Material Thickness and Method Used to Determine Thickness The tank was manufactured by Containment Solutions with a ten(10)gauge thickness for the primary and secondary tank walls.Typical design schematics are provided in Attachment 1. 3.2.1.3 Description of Tank System Piping Used oil is pumped into the tank system from each of the three (3) servicing bays. Drain pans (sumps) are positioned to collect used oil from serviced vehicles and are emptied by a Graco Husky 1040 pump system. The used oil is piped through '/z inch metal pipes.Each of the servicing bays must be manually connected to the pump system to direct the accumulated used oil into the storage tank in the southeast corner. The oil filter crusher, located in the bay 3, drains into a five (5) gallon bucket which is manually emptied into one of the drain sumps. Oil is transferred through the 'h piping system to the 750 gallon double walled tank. Hazardous Waste Tank System Assessment and Certification Page 5 of 8 NES,Inc. Broadbase,Inc. NESJob#276.EC/957.00 Lodi,California