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GR <br /> Yoa r a rffi,r <br /> January 12, 2010 <br /> Mr. Steve Dunn <br /> Preston Pipelines <br /> 12833 South Manthey Road <br /> Lathrop, CA 95330 <br /> RE: Proposal and Work Plan for Groundwater Testing <br /> Delta Water Intake Project <br /> Dear Mr. Dunn, <br /> This work plan has been prepared by WGR Southwest, Inc. (WGR) on behalf of Preston Pipelines <br /> (Preston). The work plan proposes the advancement of one subsurface soil boring to collect "grab" <br /> groundwater samples for the purpose of meeting the pre-discharge screening requirements contained <br /> in the Limited Threat Waste Discharge Requirements (Order No. R5-2008-0082) and to facilitate the <br /> specification of the groundwater treatment system. <br /> Field activities will be performed along the eastern side of the San Joaquin River at Empire Tract <br /> south of the western end of Eight Mile Road in Stockton, California. The direct push boring will be <br /> located in the vicinity of the proposed excavation and dewatering activities within the project <br /> boundaries of the intake facility for the Stockton Delta Water Supply Project. Samples will be <br /> collected and submitted to State-certified analytical laboratories under the oversight of a registered <br /> California Geologist. <br /> The following activities will be performed during the above-described activities: <br /> Health and Safety Plan: A site specific Health and Safety Plan detailing known or potential <br /> hazards and emergency response procedures will be present on site and a "tailgate" safety <br /> meeting will be conducted prior to starting field activities. The plan will be maintained on- <br /> site throughout the duration of field activities. <br /> Permitting: The direct push boring will be permitted with the San Joaquin County <br /> Environmental Health Department (SJCEHD). Communications will be maintained with the <br /> SJCEHD throughout the duration of the project. <br /> Drill Site Clearance: Prior to field operations, the drilling location will be marked in white <br /> and Underground Service Alert (USA) will be contacted to identify any potential subsurface <br /> obstructions and/or conflicts. <br /> 315 W.Pine Street,Suite 8 •Lodi,CA 95240•(209)334-5363 •Fax(209)334-5374 <br /> Los Alamitos,CA • Lodi,CA• San Antonio,TX• Charlotte,NC <br />