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Advanced. <br /> GeoEnvironmental, In = - <br /> 1 <br /> 01 March 2001 <br /> AGE-NC Project No. 98-0520 <br /> Ms. Lori Duncan <br /> SAN JOAQUIN COUNTY PHS-EHD <br /> 304 East Weber Avenue, 3`d Floor <br /> Stockton, CA 95201 <br /> Subject: Modified Additional Site Assessment Work Plan Addendum-November 2000 <br /> BOB'S MUFFLER SHOP <br /> 466 Moffat Road,Manteca, California <br /> Dear Ms. Duncan: <br /> Results of the quarterly ground water monitoring events to date indicate that the ground water gradient is <br /> relatively flat and that ground water flow direction apparently varies, flowing either easterly or westerly. <br /> Pursuant to your letter dated 22 December 2001, the original.Additional Site Assessment Work Plan <br /> Addendum,dated November 2000,has been modified to include the installation of two additional monitoring <br /> wells(labeled PMW-9 and PMW-10)north and east of the project site(Figure 1)along with the monitoring <br /> wells in the original plan. Methodology for monitoring well installation and sampling is described in the <br /> work plan prepared by Advanced GeoEnvironmental, Inc. (AGE) titled Preliminary Site Assessment Work <br /> Plan, dated 30 November 1998. <br /> If you have any questions or require further information,please contact bur office at(209)467-1006. <br /> Sincerely, <br /> Advanced GeoEnvironmental,Inc. <br /> J <br /> Calvin F. Lee <br /> Project Geologist , <br /> cc: Mr. Tom Barbour-Bob's Muffler Shop <br /> Mr. Mark List-CVRWQCB <br /> 837 Shaw Road,Stockton, California 95215 <br /> Telephone (209) 467-1006 FAX(209)467-1118 <br /> r <br />