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16 <br /> 1117 Lone Palm Avenue, Suite B <br /> ..,/ Modesto, CA 95351 <br /> www.atc-enviro.com <br /> (VkTc209.579.2221 <br /> Fax 209.579.2225 <br /> A S 8 0 C I A T E S I N C <br /> D <br /> v C IUJ <br /> FEB 0 5 2004 <br /> January 27, 2004 ENVIRONMENT HEALTH <br /> 14885 HEALTH <br /> Ms. Margaret Lagorio <br /> San Joaquin County Environmental Health Department <br /> 304 E. Weber Street, Third Floor <br /> Stockton, CA 95202 <br /> Subject: Addendum to the Workplan for Additional Subsurface Investigation at Three <br /> Palms Grocery located at 6732 East Highway 88, Stockton, California <br /> Dear Ms. Lagorio: <br /> In response to the telephone conversation on January 23, 2004, between Ms. Margaret Lagorio of <br /> the San Joaquin County Environmental Health Department and ATC Associates Inc. (ATC), ATC <br /> has prepared this addendum to the Workplan for Additional Subsurface Investigation at Three <br /> Palms Grocery located at 6732 East Highway 88, .Stockton, California dated January 8, 2004. <br /> Per our conversation, one additional CPT soil boring will be located between monitoring well <br /> MW3 and the domestic well to further evaluate the vertical extent of impacted groundwater and <br /> subsurface soil lithology. The proposed boring location is shown on the attached Figure 2. <br /> If you have any questions or require additional information regarding this workplan addendum, <br /> please contact us at (209) 579-2221. <br /> Respectfully submitted, <br /> ATC Associates Inc. <br /> Nathan Christman <br /> Staff Geologist <br /> Ie Hornsey, P.E. <br /> Registered Engineer No. C47410 <br /> Attachments <br /> cc: Ms. Leanne Scannavino <br /> Mr. Jim Barton, CA Regional Water Quality Control Board, Central Valley Region <br /> w:\14885\reports\sum.doc I <br /> ENVIRONMENTAL, GEOTECHNICAL AND MATERIALS PROFESSIONALS <br />