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Ms.Lori Duncan <br /> March 27,2008 <br /> CONESTOGA"ROVERS <br /> &ASSOCIATES' <br /> from boring SB-2 at 5-foot intervals for soil description, possible chemical analyses, and organic vapor <br /> screening with a photo-ionization detector (PID). CRA will prep are an exploratory boring log for the <br /> boring an&will record PID measurements on the'boring log. <br /> CRA will retain soil samples designated for chemical analyses in stainless steel or brass sample tubes: . <br /> CRA will cover the tubes:`on both ends wit h'Teflon sheets and plastic end caps. CRA will collect <br /> groundwater samples from the boring using Hydropunch sampling equipment. The groundwatersamples <br /> will be retained in appropriate sampling containers.- CRA will label the soil and groundwater samples, <br /> enter them''onto a chain-of-custody record, and place them into a cooler with ice for.transport to a State <br /> of California certified laboratory for analyses. -The soil and groundwater samples from the boring will be <br /> analyzed for the constituents listed in the Work Plan. We will request a standard 2-week tum-around" <br /> time for laboratory results. <br /> Permitting"other field activities, and reporting will be performed in accordance with the scope of work - - <br /> presented in the Work Plan. <br /> CLOSING 1p <br /> If you have <br /> any 9 g questions regarding the contents of this document,` please call Mike Murphy, at <br /> (707) 933-2367. <br /> 4 <br /> Sincerely, j <br /> Conestoga-Rovers &Associates <br /> Mike Murphy <br /> P ject Manager <br /> 4Q y�pH W.N <br /> Joe W.Neely,PG No. 6927 :. <br /> mr c <br /> CF CALI _ <br /> 1661 - 2 - <br /> Worldwide Engineering,Environmental, Construction,and IT Services <br />