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* Well Survey—Elevation (a k a Geo Z) <br /> ' o October 27, 2004 <br /> * Site Map (a k a Geo Map) <br /> ' o October 4, 2004 <br /> The next monitoring event as scheduled for January 2005 The former consultant for CHP Tracy <br /> I� is under contract to perform the sampling event Therefore, the consultant will provide sampling <br /> and reporting services Klemfelder will be responsible for electronic submittal of the analytical <br /> results and water levels The January 2005 sampling event will mark four consecutive quarterly <br /> sampling events at the site Based on Klelnfelder's experience with similar sites, four <br /> consecutive quarterly events have been sufficient to evaluate If the plume is sufficiently defined <br /> and stabilized Following the January 2005 sampling event, and if supported by the data, <br /> Klemfelder will request that the site be considered for closure <br /> LIMITATIONS <br /> This report was prepared in general accordance with accepted standards of care which exist In <br /> Northern California at the time the investigation was performed The scope of work was limited <br /> to sampling 4 groundwater monitoring wells, performing a Sensitive Receptor Survey, and <br /> submitting electronic data to the SWRCB through Geotracker Conclusions are based on <br /> information obtained from analytical results provided by Kiff Analytical and survey data <br /> provided by Morrow Surveying It should be recognized that definition and evaluation of <br /> geologic and chemical subsurface conditions are difficult Judgments leading to conclusions and <br /> recommendations are generally made with an incomplete knowledge of the subsurface and/or <br /> historical conditions applicable to the site If further refinement of data and interpretation should <br /> become necessary, additional characterization can be performed No warranty, expressed or <br /> implied, is made <br /> ' Sincerely, <br /> KLEINFELDER, INC <br /> Steven C Dalton mdlay, R G <br /> Staff Geologist Senior Geologist <br /> SCD ESF aak <br /> i <br /> 49014-11SAC4R482 Page 5 of 6 November 18,2004 <br /> Copynght 2004 Klemfelder Inc <br /> KLEINFELDER 3077 Fite Circle, Sacramento, CA 95827-1815 (916)366-1701 (916)366-7013 fax <br />