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i 46 <br /> Memo From the Desk of LINDA TURKATTE <br /> SENIOR REHS <br /> To: Margaret Lagorio <br /> Date: February 26, 1997 <br /> Subject: 3736 S HWY 99 <br /> UGT file review <br /> I had a conversation with Don Roek about this site and he said that he had <br /> been told in 1987 that he was done with the tanks at this site. I told him <br /> that I would review the file, which I did today. <br /> Two tanks were removed from the site on 3-18-87. One tank was <br /> nondetect and the other tank, a diesel, showed the following results: <br /> Ss. a <br /> TANK#2 3300ppm 0.6ppm 11ppm 1 89ppm 840ppm <br /> On 5-13-87 the tank pit was over excavated to 14.5' bgs. One sample was <br /> obtained but I could find no results in the file. <br /> On 6-12-87 the tank pit was over excavated to 18' bgs. One sample was <br /> obtained showing the following results: <br /> 01 MOW 111 <br /> _. <br /> TANK#2 13ppm <0.2ppm 1.2ppm 5.4ppm <br /> RESAMPLE 18' <br /> On 8-7-87 Doug Wilson told them verbally that "no further action was <br /> needed at this time". <br /> It is my opinion that this site should be closed with no further action due to <br /> the very low levels of contamination noted at the site, because <br /> approximately 40 feet of vadose zone exists between the last sample <br /> depth and groundwater, and because the bulk of the contaminated soil has <br /> already been removed from the site. <br /> Please let me know what you think. <br />