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Ift.. %W' <br /> 1WHF1 WHF Environmental Consultants, Inc. <br /> Post Office Box 6729 <br /> Modesto, CA 95355-6729 <br /> (209) 579-8138 <br /> 31 May 1991 <br /> 117 <br /> Mike Infurna <br /> San Joaquin County Environmental Health ENVIRONMENTAL NEALTF4 <br /> PO Box 2009 PERMIT/SERVICES <br /> Stockton, CA 95202 <br /> RE: Addendum to Phase II Remedial Work Plan Dated April 22, 1991 <br /> Site Located at 140 West Harding Avenue, Stockton, California <br /> Dear Mike: <br /> This letter addendum is regarding changes to the Phase II Remedial Work Plan <br /> for the Blockbuster Video/Yellow Submarine site located at 140 W. Harding Avenue, <br /> Stockton, California. <br /> The three ground water monitoring wells will be changed to three inch (3") <br /> wells instead of four inch (4") wells, in order to stay within the budget and to install <br /> these wells in a timely manner. The drilling company, Osterberg & Stewart, were <br /> originally contacted to perform the drilling, but are being delayed on a current project <br /> and will not be available for another month. Pierson Drilling, which is located in <br /> Modesto, does not have the equipment to drill four inch (4") wells, but have the <br /> equipment to install three inch Q') wells and will be used on this site for drilling the <br /> three monitoring wells. They will be installed using a mobile mounted drilling rig <br /> employing the use of a hollow stem flight auger no less than 4-1/4 inch i.d. and 8-7/8 ef <br /> The well which is to be installed in the sidewalk on the northwest corner will be 6 <br /> moved onto the property. This is due to the overhead lines in that area. A site map with <br /> the proposed well locations is enclosed. <br />