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0 <br /> .m <br /> N <br /> CO <br /> Table 1 -Assessment of Used Oil Tank System / Xd/H W <br /> Jiffy Lube Store #2497, Stockton, CA 41 <br /> OTHER INFORMATION <br /> r <br /> Tank Information-The aboveground storage tank(AST)has process ID"USED OIL". On August 22, 2014,AECOM placed an NFPA 704 placard above on the m <br /> wall. The AST is a UL 142 AST(Attachment 6). There is no record in the file of the installation date, or if the tank system was Installed with a building permit. a <br /> See Figure 7 for a drawing of the AST. <br /> Tank Tightness-On April 9, 2014, AECOM tightness tested the AST primary tank and interstitial space: the AST passed(Attachment 2).Tightness testing was • <br /> conducted per NFPA 30,2008 Edition, Section 21.5.2 (Attachment 6). <br /> Used Oil Collection and Transfer-Used oil drains from the collection pans by gravity through a rubber hose,which connects to steel piping leading to the tank.A <br /> separate pipe drains each of the two collection pans, and the two pipes combine at a fitting connected to the tank. <br /> Tank Emptying-Suction hose is lowered to the tank by a licensed waste contractor to remove accumulated used oil from the tank. <br /> Spill Prevention- In August 2014, AECOM installed a Sentry Tank Monitor high liquid level sensor and audible alarm(Attachment 4). This sensor is mounted in <br /> a4"0 NPT-F port on the top of the AST. The sensor activates at approximately 90%of tank capacity. The alarm is battery operated. <br /> Leak Detection-Tightness testing on April 9,2014 demonstrates that the primary tank is liquid tight. The basement(is., secondary containment liner) is also <br /> monitored daily for leaks(Attachment 3). <br /> SecondaryContainment-Secondary containment is provided by the basement of the store,which has no drains or other outlets. This will be sufficient to prevent <br /> any migration of wastes or accumulated liquid to leak out of the system to the soil, groundwater,or surface water. <br /> Emergency Venting-Per the tank's UL 142 nameplate, the primary tank requires 94,800 standard cubic feet per hour(CFH)of emergency vent capacity at <br /> 2.6 prig(Attachment 6). On August 22, 2014,AECOM installed the following emergency vent device on the primary tank: Morrison Bros. Co. Model FIG. —O <br /> 244OMS0100AV(UL-Listed), 40 NPT-M, powder-coated cast-iron lid,aluminum body, Viton A seat, 0.5 psig operating paint, 105,400 CFH at operating point;. •o <br /> (Attachment 4). <br /> rn <br /> Seismic/Uplift Restraint-The AST is supported by a seismic restraint system that was installed by AECOM in August 2014. AECOM calculations and permitting ° <br /> documents are included in Attachment 5. <br /> [ll M <br /> z7— r <br /> nG <br /> 0 0 <br /> rn <br /> rr <br /> in u <br /> - 14 • PM rn <br /> t"- <br />