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0 <br /> Curtiss Pontiac-Cadillac Page 2 <br /> 2450 Toste Road July 10,2008 <br /> Tracy, CA <br /> The addendum is Ove. for U:s bmittal to the EHD no later than August 1, 20.08.. <br /> -7- <br /> In the Report AGEstatesthat:they consider the dissolved contamination at this site to be <br /> undefined., and recommend installation of additional groundwater monitoring wells. The <br /> EHD does notagreewith this determination,or recommendation. The vertical extent of <br /> the g rou ndwater.contamination has been defined by monitoring.wells MW 1A;Which hasa <br /> screen interval..frorn 23-28and MW- , with a screen interval from .3 feet <br /> bsg, 7 <br /> The lateral extent Of the.shallow <br /> ow:groundwater contamination is defined by Wells:NW.442A,... <br /> :WlWw6 and In the early phases of the site . sti <br /> MW 33. 5inve gation direct <br /> d t samples tor <br /> push. oil. boring were advanced onsite to collect soil and grWgroun. waar. <br /> .......... :dissolved� contamination <br /> analysis. Results of the groundwater analysis indicate the: <br /> ex-tonded beyond the area::-ofthe�MW-1A, MW-1 B and MW-T cl..Uster, but not.:as f.ar:as.:the <br /> .lateral well locations: The::EHD considers the sum of the site investigation results already , <br /> .available to be sufficient tor planning.the groundwater remediati6n. <br /> you have:any questions .please call` ON Duncan at(209)468-033 . <br /> Sincerely,.: <br /> Lori Duncan, REH$ Margar Lagori R S <br /> SeNor Registered ErWitonmental Heatth:'Specialist Program Coordinator <br /> c: James Barton, CVRWQCB,.l 1020 Sun Center Drive#200, Rancho Cordova,CA 95670 <br /> Lauren Cardinelli, AGE, 837 Shaw Avenue, Stockton CA 9521,51 <br />