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are <br /> =_ <br /> Geotechnical and Environmental Sciences Consultants <br /> August 17, 2010 <br /> Project No. 401478012 <br /> Mr. Pradip Desai <br /> Environmental Analyst INECE's FED <br /> Office of Court Construction and Management <br /> Judicial Council of California-Administrative Office of the Courts AUG 1 8 iWO <br /> Southern Region ENVIRUNIVIENT HEALTH <br /> 2255 N. Ontario Street, Suite#200 PERMIT/SERVICES <br /> Burbank, California 91504 <br /> Subject: Work plan for Phase Il Environmental Site Assessment <br /> Proposed Stockton Courthouse (AOC Ref. #RFP 366) <br /> 33 Hunter Square <br /> Stockton, California <br /> Dear Mr. Desai: <br /> As per your request, Ninyo & Moore is pleased to provide this Work Plan for the field activities <br /> that will be conducted during the Phase 11 Environmental Site Assessment (ESA) at the above- <br /> referenced site. The Phase II ESA activities are being completed prior to a property transaction be- <br /> tween the Judicial Council of California and the current site owner(100 Oak Street Corporation). <br /> BORING ADVANCEMENT <br /> The soil borings will be advanced by a truck or track-mounted direct push rig. Prior to the invasive <br /> field activities, we will meet with our utility locating subcontractor to clear the location of each <br /> boring. The locations of the borings may change slightly in the event utility lines are located at <br /> or near the proposed locations. <br /> The fieldwork planned for this project will consist of the advancement of three borings (B-1 <br /> through B-3) to a depth of 30 to 35 feet below ground surface (ft bgs) and the advancement of <br /> three soil vapor borings (SV-1 through SV-3) to a depth of approximately 5.5 ft bgs. The approxi- <br /> mate locations of the borings are depicted on the attached figure. The total number of borings and <br /> depth may change to accommodate actual site conditions such as site lithology or availability of <br /> groundwater for sampling. <br /> 1956 Webster Street - Suite 400 - Oakland, California 94612 - Phone(510)633-5640 - Fax(510)633-5646 <br /> Ontario - Irvine - San Diego - Los Angeles - Oakland ■ Las Vegas - Salt Lake City - Phoenix <br />