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f Leolgf�fccaI?ecFrizics Inc. 2 <br /> ' McGranahan(Gawne Rd.) <br /> Project No.; 251.3 <br /> January 26, 1998 <br /> 3. volume of soil contaminated by the chemicals <br /> 4. contaminant concentrations <br /> 5. soil pore vapor contaminant concentration <br /> 6. unit conversion <br /> We now believe the actual number was closer to 200 gallons with a possible factor of 2x that i <br /> amount_ - This means that since the vapor extraction system has removed approximately 85 <br /> gallons, or 45% of the estimated volume of gasoline, which allows us to accelerate <br /> recommendation for closure of this site. <br /> With the new information, along with the remedial work to date,'we now know that removal of <br /> the risk to human health and the environment should be complete. Therefore we can safely make �. <br /> the following recommendations` <br /> 1. The VETS system should be shutdownpermanently. <br /> 2 A flnal'report will"tie submitted'outlinih—P tha ok id test results: <br /> 3. The site should then be considered for a low risk closure. <br /> Respectfully, <br /> (T <br /> GEOLOGICgL TECHNICS 2NC. <br /> Raynold 1. Kablanow H, Ph.D. <br /> RG/HG/REA <br /> cc: Ron Rowe - SJC PHS/EHD <br /> Diane Bufalacchi - SJVUAPCD <br /> USTCFP- <br /> r <br /> I <br /> g:lfa6slmrgfrn 2KI1(ar9B12S1 r�rn(u 9dlydae _ ,Y <br /> Y <br /> i <br /> I <br /> i <br /> i <br /> I <br />