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3.0 Well Installation Activities <br />' The methods and procedures used to complete the field activities are described in the following <br /> sections <br /> 3.1 Work Plan and Permitting <br /> Prior to initiating field activities, a work plan was submitted to the SJCEHD to outline <br /> procedures for the well installation activities A well installation pernut was obtained from the <br /> SJCEHD Upon receipt of the permit, a representative of the SJCEHD was scheduled to observe <br /> the field activities A copy of the pernut is included in Appendix A <br /> 3.2 Health and Safety and Underground Utility Location <br /> Underground Service Alert (USA) was contacted and notified of the anticipated drilling location <br /> and date of field activities A site-specific tailgate safety meeting was also conducted in order to <br /> outline procedures to minimize the potential for exposure to hazardous work conditions <br />' 3.3 Soil Borings <br /> On July 18, 2003, Gregg Drilling &Testing, Inc (Gregg Drilling)of Martinez, California <br /> advanced three soil borings (labeled PB-1, PB-2, and PB-3) at the site Boring PB-1 was initially <br /> hand-augered to S feet bsg to evaluate for the presence of underground utilities Borings PB-2 <br /> and PB-3 were not hand augered due to the presence of pea gravel Gregg Drilling completed the <br /> soil bonngs using a B-61 drill rig equipped with an 8-Inch hollow stern auger Drilling <br />' equipment was steam cleaned between borings to reduce the potential for contaminant <br /> introduction and sample cross-contamination Two of the borings were placed in the asphalt <br />' pavement near the former 2,000-gallon diesel tank excavation and one was placed in the <br /> landscaped area in the inferred hydraulically down-gradient location Figure 3 depicts the <br /> locations of the soil bonngs <br /> The borings were each advanced to a depth of 23 feet bsg Soil samples were collected from <br />' each boring at five-foot intervals for the purpose of lithological evaluation, field screening for <br /> organic vapors, and laboratory analysis Upon retrieval of the three sample tubes, the middle <br /> sample tube was retained for potential laboratory analysis These select samples were sealed <br /> with teflon tape and plastic endcaps, labeled, and placed in an insulated chest with ice, pending <br /> transport to the laboratory Sample collection, handling, and transport were documented using <br /> chain of custody procedures <br />' CNCD/08-11 03/0 SHARFIUST/03-0096 doc 3 <br />