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Irerracon <br /> April 22, 2019 <br /> Lustre-Cal <br /> P.O Box 439 <br /> Lodi, CA 95240 <br /> Attn: Mr. Chris Colbert, Vice President of Operations <br /> P: (209) 570-2515 <br /> E: ccolbert lustrecal.com <br /> Subject: Tank and Secondary Containment Assessment <br /> Lustre-Cal Facility <br /> 715 South Guild Avenue <br /> Lodi, California 95240 <br /> Terracon Project Number: NA197014 <br /> Dear Mr. Colbert: <br /> We are pleased to provide you with tank assessment for the waste water treatment system at <br /> the subject site. It is our understanding that the facility was inspected by the San Joaquin <br /> County Environmental Health Department (SJCEHD). The county determined that the site <br /> contingency plan required an update. As part of the update, Lustre-Cal was required to obtain <br /> a written tank assessment of the waste water treatment units at the facility. The county has <br /> also required an assessment of the secondary containment for the waste water treatment unit, <br /> as well as for the three hazardous waste storage tanks. This report addresses those <br /> requirements and assessments, and has be reviewed and certified by independent, qualified, <br /> professional engineers, registered in California in general compliance with the standards listed <br /> in California Code of Regulations (CCR) Title 22, 66265.192. The tanks and containments <br /> systems appear to be in good working order without any apparent signs which would may affect <br /> their structural integrity. <br /> In total, the following tasks have been performed for each of the two (2) onsite waste water <br /> capture/holding tanks and their secondary containment, and three (3) hazardous waste storage <br /> tank assessments: <br /> ■ Tank Construction Assessment <br /> ■ Piping and Ancillary Equipment Inspection <br /> ■ Material Storage Assessment <br /> ■ Visual Inspection of Tanks and Surrounding Equipment <br /> ■ Seismic Calculations <br /> Limitations <br /> Our professional services were performed, our findings obtained, and our conclusions proposed <br /> in accordance with generally accepted principles and practices for the area. This warranty is in <br /> lieu of all other warranties either expressed or implied. Test findings and statements of <br /> professional opinion do not constitute a guarantee or warranty, expressed or implied. <br /> Responsive ■ Resourceful ■ Reliable i <br />