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5 <br /> KEI-P91-0202 .QR1 <br /> May 4 , 1992 <br /> Page 5 <br /> All of the wells were developed on December 26 through 31, 1991. <br /> Wells MW1, MW2 , and MW3 were redeveloped as previously recommended <br /> by KEI . All of the wells were sampled on January 3, 1992 . <br /> Water samples from all of the wells, and selected soil samples from <br /> the borings of MW4 through MW9 and exploratory borings EB1 and EB2 , <br /> were analyzed at Sequoia Analytical Laboratory in Concord, <br /> California. The samples were analyzed for TPH as gasoline and <br /> BTX&E. In addition, the soil samples collected from EBI and EB2 <br /> were analyzed for TPH as diesel, TOG, and for EPA method 8010 <br /> constituents. <br /> Analytical results of the s'o _l :,sa'm l collected from borings MW4 <br /> through MW9 indicated non-detectable levels of TPH as gasoline and <br /> BTX&E in all analyzed samples, except inn -"a 1`e -MW5 (74 which had <br /> f A �saatasol �ne eve of 5 p m `w t a en•z e" ~neve ofZ?: 6 <br /> ` �. <br /> MW6` 6.0 wfh 'chLS'hawedZawk r�z a level=of�4.016 -. In <br /> exploratory borings EBI and EB2, TPH as diesel, TOG, and EPA method <br /> 8010 constituents were non-detectable in all samples. Analytical <br /> results of thewat' r }sa-m' `lees collected from MW1 and MW3 through MW9 <br /> indicated non-detectable levels of TPH as gasoline and BTX&E. <br /> Analytical results of the water samples collected from ?p <br /> 'gin si"ca •e �a_Tev�l.��f✓2.4.O�ppb-o':�:TE .�as.:,...gaso� n �'-an• :''a- eve- of1,: <br /> o f beneri Results of the soil analyses are summariz d n <br /> Tables 3 and 3a, and results of the water analyses are summarized <br /> in Table 2 . <br /> Documentation of the exploratory boring and monitoring well <br /> installation procedures, sample collection techniques, and the <br /> analytical results are presented in KEI ' s report (KEI-P91-0202 .R6) <br /> dated January 23, 1992 . Based on the analytical results, KEI <br /> recommended that no further work related to contamination delinea- <br /> tion was warranted at the subject site. However, KEI recommended <br /> the continuation of the current monitoring and sampling program for <br /> all nine existing wells in order to verify the residual to non- <br /> detectable levels of ground water contamination detected. <br /> RECENT FIELD ACTIVITIES <br /> The nine wells (14W1 through MW9) were monitored three times and <br /> were sampled once during the quarter. During monitoring, the wells <br /> were checked for depth to water and the presence of free product. <br /> During sampling, the wells were also checked for the presence of <br /> sheen. No free product or sheen was noted in any of the wells <br /> during the quarter. Monitoring data are summarized in Table 1. <br /> Water samples were collected from the wells on April 7 , 1992 . <br /> Prior to sampling, the wells were each purged of between 4 and 10 <br />