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26 May 1995 <br /> i AGE-NC-95-0130 <br /> Page 2 of 4 <br /> The proposed locations of the soil borings ate illustrated on Figure 3 one ground water <br /> monitoring well will be installed north of N1W-1 near the northwest corner of the site, one <br /> ground water well will be installed south of MW-1 near the xest side of the garage, one <br /> ground water well will be installed south of MW-2 near the southeast corner of the site This <br /> third proposed well may be placed in the sidewalk If this NN ell is placed in the City of <br /> Stockton i iglit-of-way, an encroachment pei mit will be obtained <br /> Each boring will be dulled to a total depth of appiovimatel_v 73 feet and sampled at 5 foot <br /> intervals <br /> An underground storage tank of unkno"n volume was disco\ered during the initial phase <br /> of investigation The PHS-EHD has requested submittal of a tank removal plan by 2 July <br /> 1995 A plan for iemoval of the unknown UST is presently being ie\iewed by <br /> representatives of Top Filling Station Upon appioval, a plan mill be submitted to the PHS- <br /> EHD <br />. 4 0. PROCEDURES <br /> To meet the pioject objectives, the follo%\ing procedures NNill be perfoimed <br /> 1) Piepaie a Site Health and Safety Plan sir accordance \%rtli the Occupatiornal Safety <br /> and Health Guidance Manual toi Hazardous Waste Site Acti\itres - Piepared by <br /> National Institute for Occupational Safety and Health Occup;itional Safety and <br /> Health Administration, U S Coast Guard and U S Environmental Protection <br /> Agency, October 1955 <br /> 2) Notify the PHS-EHD at least 48 houis prior to commencement of any «oik <br /> 3) A total of five (5) borings will be diilled The borings will be drilled using a tiuck- <br /> niournted dull rig equipped with continuous-flight, S-inch dianietei hollow-stens <br /> augers Thiee borings will be drilled to a depth of appiommately 73 feet using 8-inch <br /> diameter augers and competed as 2-inch diameter giound water riionrtoiing wells <br /> Two borings will dialled to depths of approximately 60 feet and completed as 4-inch ,/ <br /> diameter vadose zone remediation wells The proposed boring locations are <br /> illustiated on Figure 2 <br /> 4) Obtain soil samples at five-foot intervals using a split-tube sampler loaded with three <br /> pre-cleaned bi ass sleeves <br /> t` �� 1 Deserve soil in the lead biass sleeve by covering both ends with Teflon sheets, <br />