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• Nor-Cal Beverage Company <br /> Project No. 150005.01 <br /> Page 2 <br /> Two 4:1 composite samples were also collected on July 16, 1993 from the soil stockpiled from <br /> previous excavation activity. The samples were analyzed by Zymax Envirotechnology for TPHG <br /> and BTEX. No analytes were detected. Soil sample results are presented in Table 3. <br /> Laboratory data sheets are included in Attachment 2. <br /> The concentrations of toluene, ethylbenzene and xylenes reported in the most recent groundwater <br /> sample from well MW-1 are three orders of magnitude below Primary Maximum Contaminant <br /> Levels (MCLs) that are derived from health-based criteria, and at least one order of magnitude <br /> below the Secondary (taste and odor considerations) MCLs. No analytes were detected in <br /> groundwater collected from the hydropunch boring located in the assumed downgradient <br /> direction from MW-1. Therefore, it is RESNA's conclusion that there has been no degradation <br /> of groundwater beneath this site and the potential for future degradation by migration through <br /> contaminated soils has been removed. Based on this, RESNA, on behalf of Nor-Cal Beverage <br /> Co., respectfully requests closure of this site and the authority to destroy well MW-1. <br /> If you have any questions regarding this report, please contact the undersigned at your earliest <br /> convenience. <br /> • Respectfully, <br /> RESNA Industries, Inc. <br /> KTI aAA�c c <br /> Marcie R. McCabe <br /> Staff Geologist <br /> Gregory P. Stahl <br /> CA Registered Geologist No. 5023 <br /> Attachments <br /> PC: Mr. Peter Ruhkala, Nor-Cal Beverage <br /> Ms. Beth Thayer, CRWQCB <br /> _Mr. .Pat.Riddle <br /> MRM/ggk <br /> L072893.FNL <br />