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Project No 034-98081 Page No 3 addition, the December 1999 analysis of fuel oxygenates, methanol, and ethanol did not detect these constituents In light of these observations, Krazan recommends that semi-annual monitoring be ' conducted without further analyses of fuel oxygenates, methanol, and ethanol As noted in Krazan's August 28, 1998 report, PHC contamination trends increasing toward the property boundary appear to ' imply an off-site source for the contaminants noted in groundwater LIMITATIONS i The findings of this report were based upon the results of our field and laboratory investigations, coupled with the interpretation of subsurface conditions associated with groundwater samples AIso incorporated ' was the interpretation of previous investigations in the vicinity Therefore, the data are accurate only to the degree implied by review of the data obtained and by professional interpretation ' Chemical testing was done by a laboratory approved by the State of California Department of Health Services The results of the chemical testing are accurate only to the degree of care of ensunng the testing accuracy and the representative nature of the soil samples obtained The findings presented herewith are based on professional interpretation using state of the art methods and equipment and a degree of conservatism deemed proper as of this report date It is not warranted that ' such data cannot be superseded by future geotechnical, environmental, or technical developments ' If you have any questions or if we may be of further assistance, please do not hesitate to contact our Environmental Division Office at(559) 348-2200 ' Respectfully submitted, KRAZAN&ASSOCIATES, INC Jeffrey R Noel Project Manager Arthur H Morrill Registered Geologist No 5383 JRN/AHM/lj k ` I ' lc Mr Michael J Infurna, SJCEHD I c Mr Doug Reynolds, H&H Engineering KRA7 AN&ASSOCIATES,INC Offices Serving the Western United States 3498081 499