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Addendum to Work Plan <br /> Libbey-Owens-Pard Co. <br /> October 22, 1993 <br /> Page -2- <br /> (5) All efforts will be made to place the large-diameter (6- <br /> inch or larger) wells in the center of the groundwater <br /> contaminate plume . <br /> ( 6) A hydropunch borehole will be placed adjacent to the <br /> above-ground tank used for sump #2 . <br /> ( 7) Successive hydropunch boreholes will be placed radially <br /> outward from the source area until a "zero line" has been <br /> defined. <br /> ( 8) In addition to the soil samples collected at the <br /> specified intervals in the hydropunch boreholes, soil <br /> san;pies will also be collected at any significant <br /> lithological changes . <br /> If you have any questions, please do not hesitate to call me <br /> at (209 ) 668-9234 or Jon Weiss with LOF at (209 ) 858-6202 . <br /> Respectfully submitted, <br /> R. David Meade <br /> Managing Geologist <br /> cc: Chuck Baumgartner, LOF <br /> Jon Weiss, LOF <br /> /Diane Hinson, San Joaquin County <br /> LA2;LOFwp.add <br /> CONDOR <br />