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r- <br /> Mr. Kevin Krause <br /> Addendum to Work Plan for.Excavation and Soil Sampling <br /> Bulk Transportation Facility, Stockton, California <br /> Soil Sampling <br /> When field evidence indicates impacted soil has been removed, Hygienetics will collect soil samples <br /> from the sidewalls and bases of the two excavated areas. Samples will be collected using a grid <br /> pattern with each grid cell encompassing a maximum 10-foot horizontal by 10-foot vertical (100- <br /> square-foot)area. One soil sample will be collected per grid cell or fraction thereof and samples will <br /> be taken from the approximate center of each cell. Soil sampling and analytical procedures will be <br /> those described in Hygienetics5 January 20,2003 work plan. <br /> Please call if you have any questions. \S��RED GEO` <br /> Sincerely, G� �R C. h1 Obi <br /> Hygieneties Environmental Services,Inc. �T�9 <br /> CERTIFIED�j N° EG1566 <br /> ENGINEERING <br /> uT GEOLOGIST \Q <br /> Rodger C. Witham, R.G., C.E.G. qTF OF CAV\\F ' � <br /> Project Manager <br /> HEyggienetics® <br /> Aronmental <br />