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!� June 1, 2000 r <br /> Mr Ed Ralston <br /> Page 2 <br /> using a HydroPunch groundwater sampler consistent with methods presented in <br /> the May 18, 2000 Additional Site Assessment Work Plan <br /> • Groundwater Analysis. One groundwater sample from GP-4 will be submitted to <br /> a California state-certified laboratory for analysis Groundwater samples will be <br /> analyzed for the presence of TPH-g, BTEX, and MtBE using EPA Methods 8015 <br /> Modified and 8020 If MtBE is reported it will be confirmed using EPA Method <br /> 8260 <br /> The sampling and analytical methods are consistent with those proposed in the May 18, 2000 <br /> Additional Site Assessment Workplan The boring will be sealed with cement grout upon <br /> completion The grout will be placed through a tremae pipe from the base of the boring to ground <br /> surface <br /> If there are any questions regarding the contents of this work plan, please call us at (916) 928- <br /> 3300 <br /> Sincerely, <br /> IT Corporation <br /> r <br /> i <br /> V <br /> Kathleen A Waldo <br /> Staff Engineer <br /> Mark Capps <br /> Project Geologist <br /> RG 6561 <br /> Attachments Figure 1 —Proposed Sall Boring Locations <br /> cc Mr Michael Infurna, San Joaquin County Public Health Services Environmental <br /> Health Department <br /> Mr Warren Hartzell, Regional Water Quality Control Board, Central Valley Region <br /> N Vancfpl\Projects\Projects1911101111A10102\WP2adden doc <br />