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Union Ice Company �' July 3, 1996 <br /> Mr. Brett Larson 953-7001 <br /> J <br /> Comment; The table summarizing the historic groundwater analytical results contained a number of <br /> errors including the dates of sample collection and the analytical results from samples <br /> collected on May 5, 1995 from MW9 and MW1I <br /> Response: The e table summarizing the historic groundwater analytical results was revised <br /> accordingly. Where known,the data were revisedto include the day of sampling <br /> as requested by the SJCEHD. 4 <br /> Comment: The volume of remaining soil contamination was not estimated nor the effect which the <br /> average concentration of residual soil contamination may have on groundwater in the <br /> future, !� <br /> Response: As discussed with the SJCEHD, it is not reasonable to attempt to estimate the <br /> mass of residual petroleum hydrocarbon at the site. However,the text in Sections <br /> 3 and 4 have been expanded to address the SJCEHD concerns. The residual <br /> - contamination is minor. The concentrations"of TPHg and BTEX detected in <br /> groundwater is below or very near MCL levels for(hese substances. <br /> If you have any further questions,please do not hesitate to call. <br /> Sincerely, p <br /> i� <br /> GOLDER ASSOCIATES INC. <br /> Diane L. armiento,P.E. ;� # <br /> Senior En e ' <br /> David C. Dobson, <br /> Ph.D. 3 ;r <br /> Managing Associate <br /> JJ/DLS/ea <br /> cc: Ms. Mary Meays, SJCEDH <br />� 1 <br />[ It <br /> �i <br /> 953700I.LO3 Golder Associates <br />