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California Regiunuf Water quality Control guard <br /> pace 5 <br /> WELL SURVEY METHODS <br /> all Contrast with a <br /> censecl surveying company to survey <br /> location and vertical elevation a the topoofeach well wsig The homomal becoming will bersu surveyed <br /> d <br /> relative to the North American Datum of 1983, and the elevation will be surveyed relative to the North <br /> American Vertical Datum of 1988. <br /> WELL SAMPLING METHODS <br /> Foll <br /> at oced in each welf <br /> e mi installationof the depth interval where CCaM1Cs wlere detected, a Passive ' in the grab asion Ng 'I l be sf samples, retrieval and <br /> sampling during the next quarterly groundwater Hindu event for the Site. <br /> Reporting and Schedule <br /> Hal" & Aldrich Moposes to conduct the Held imenfortion and well installztion in April 2020, timed to <br /> concide with the spring holidays for Wo and R¢ (Le., when the nuM1ools are closed). Within 60 days of <br /> UONAA Of final laboratory data, Haley&Aldrich will prepare a report documentig the field methods <br /> tl resufts of the additional investigation, including tables, figures, and buring/we <br /> also <br /> de an <br /> anglewill <br /> r monrt monitoring area, Pp prate and reammenaawnx Poradd'¢ionalrems. The edhinn <br /> Please contact either of the murmured you move y questions or need additional information. <br /> Sincerely yours, <br /> VAS- P. 2, <br /> Michael Calhoun, PG, CHG Peter Bennett, PG, CHG <br /> Senior Protect <br /> ist <br /> Cr REAR 2 Manager5, CACllc 9as CA PDpn29oai yzrcne L cLDD #921 <br /> Enclosures <br /> Claim 1—Site red ion Map <br /> Figure 2- llavestiggotmn Loations - North area <br /> C: NestI6UK Inc.; Attn: Sven Vetter <br /> pride <br /> ny�, Anne <br /> ublk l ubrice Attn: Melinda Armstrongnstma ng Kopp <br /> San Joaquin County Public Health services; Attu: Adrienne Elkaesar, R.E.H.s. <br /> Attn:City of Ripon;Fishers, Attn: RonFisherr Werner <br /> Hp��y <br /> MICH <br />