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Tank and Secondary Containment Assessment Irerracon <br /> Lustre-Cal Facility Lodi, CA <br /> April 22, 2019 Terracon Project No. NA197014 <br /> S'de View of Secondary Conwioment Tap View of Secondary Containmenx <br /> ---------------------- 6"Thickness <br /> 60'1D. <br /> ]S" <br /> Sump Pump <br /> ---------------------J <br /> Figure 3— Diagram showing the in-ground waste water capture tank secondary containment design. <br /> Spill Prevention and Overflow: <br /> The entire system is located within a tertiary containment system which pumps back to the initial <br /> holding tanks T1 and T2. Tanks T1 and T2 are held within secondary containment vault <br /> chambers. If overflow occurs, the liquid would spill into the secondary containment vault. A <br /> sump-pump and check/float valve will then automatically engage and pump the liquid back into <br /> the system or alternate tank. Each tank also has a check/float valve that will automatically turn <br /> on causing water to pump to the secondary tank should one of them become filled to this point. <br /> Furthermore, the system is only in operation when the plant is running and personal are onsite. <br /> Should any overflow become an issue, the automated alarm would give personal warning and <br /> they could then shut down the inflow to the system. <br /> Age of the System: <br /> The estimated age of the system is 15 years. It was installed in January of 2004 during initial <br /> construction of the facility. <br /> Hazardous Waste Characteristics of Waste: <br /> The waste that is being handled is waste water from the processing performed at the plant and <br /> consists of water with pH levels outside of the regulatory limits for disposal to the storm drain <br /> system. The water is treated through this system to be of an appropriate pH for said disposal. <br /> No other constituents of concern are reported to be of issue in the system. <br /> Responsive ■ Resourceful ■ Reliable <br />