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�r <br /> Soil Boring Installation <br /> ` On September 22, 1999, one soil boring was installed at the Joe Da Silva dairy facility <br /> (Figure IIIB). The purpose of this work was to evaluate the suitability of the subsurface <br /> soils for use as low permeability lining materials in the proposed lagoons and settling <br /> ponds at the site. All soil borings were drilled by Frontier Drilling of Turlock, California, <br /> r a contractor licensed in the State of California-to conduct such activities. The work was <br /> conducted under the direct supervision of AGS personnel who logged and collected the <br /> samples for analysis. <br /> The borings were advanced using six inch outside diameter, continuous flight, solid-stem <br /> augers. During drilling, the project geologist logged all drive samples and cuttings <br /> continuously using the Unified Soil Classification System. Soil boring logs are contained <br /> within Appendix Section III. <br /> The soil boring was advanced to depth 41 feet below the ground surface. Ground water I' <br /> was not encountered in the soil boring. After completion, the soil boring was backfilled <br /> Fit with a neat cement slurry to existing grade and covered with native soil. <br /> j <br /> I <br /> �x <br /> F�" <br /> ®Western Design/David Avila 2000 30 <br /> i <br />