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Work Plan Evaluation of Soil and Ground Water December 4, 1989 <br /> Unocal Station No. 6981, Stockton, California AGS 38032-3W <br /> 1489. This pinn describes the basic safety requirements for the subsurface investigation and <br /> the drilling of soil borings at the work site. The Site Safety Plan is applicable to personnel <br /> actors of Applied GeoSystems. The Applied <br /> of Applied GeoSystems and to subcontr <br /> GeoSystems geologist will be the Site Safety Officer onsite. Personnel at the site will be <br /> e'.t briefed on the contents of the Site Safety Plan before work begins. A copy of the Site <br /> Safety Plan is included in the Appendix of this work plan and will be kept at the work site <br /> and will be available for reference by appropriate parties during the work. <br /> { <br /> SOIL BORING AND SAMPLING . <br /> Applied GeoSystems will contact Underground ,Scrvices Alert to delineate public utility � <br /> lines at the site before we begin drilling. The soil borings will be drilled using 8- to 10- <br /> inch-diameter, continuous slight, hollow-stem augers and a CME 55 (or similar) drill rig. <br /> The auger flights will be steam-cleaned prior to use to minimize the possibility of cross- : <br /> contamination. The drilling will be performed under the observation of a field geologist <br /> anu the earth materials in the boring will be logged as drilled using the Unified Soil <br /> Classification System. <br /> The borings will be completed as monitoring weals. and will be drilled to depths <br /> approximately 15 feet below the uppermost zone of saturation or 5 feet.into any saturated <br /> clay layer(aquitard)encountered below the first water-bearing zone. If an aquita:d or Iow- <br /> 16 <br /> AR,alied GeoSystems <br />