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4 <br />a <br />s t <br />lieF <br />IE <br />II <br />option for the vadose zone. Based <br />upon the test resu.' <br />vapor extraction was selected as the rem <br />�,iation option i <br />71remediation <br />hydrocarbon impacted soils at this site, <br />oil conditions, 1 <br />results of the vapor extraction test, and th3 <br />remediation sysl <br />design are addressed in RESNA's report dated Pay <br />31, 1991 entit] <br />4S(mrmary of Soil lnvestlgation\Soil Remediation <br />1Property, 141 North <br />Plan For Weber Poi <br />RI Dorado Street, Stockton, <br />California. The E <br />is presently undergoing agency review. <br />I. <br />.Table 1. Laboratory Analytical Results - Scil <br />in mg/kg (ppm) <br />7[7VYL-a�sys <br />Y LD. - tq[K.aJ1Ji TO'.YAf� <br />arm � an <br />CLami ; (Z) <br />ND No ND <br />NDNDND <br />WI <br />MD <br />ND ND ND <br />MD ND <br />ND ND MD <br />ND ND <br />MR4-35.5' MD ND ND <br />ND MD <br />ND NO ND <br />ND ND <br />MRS-35.5' MD- ND NO <br />ND MD <br />i VPI -15' ND -X83.-. •"45' <br />..:270.... -3300-1 <br />4vP1-31_ s... 0.076'.h, 0.15, 0.007.x:, <br />. <br />:j�VP3-1a' ND -0.008 -0:006., •:..0.030 <br />sn ND <br />IVP2-30.5' ND ND ND <br />MD ND <br />3W]=15:� ro:a10 ND ND <br />"so:00a ND <br />ND <br />0030 - ND <br />hIVP3-30.5' <br />IDZTECTIOM LIMIT 0,005 0,005 6.005 <br />0.005 1,0 <br />NOTES: - .---- - <br />ZPA Method 5030/8020/602 <br />(1) CPA Method 5030 and Modified CPA Method 8015 <br />I(D Compounds Not Detected below Method Detection Limtte <br />Following monitoring well. installaticn and <br />development, al. <br />.ionitoring wells on site were sampled. All <br />water samples were <br />laboratory analyzed for BTEX using EPA method 602 <br />and TPH as gasoline <br />sling modified EPA method 8G15. Laboratory analyses <br />indicates well; <br />41, MW2, MW3, and MW4 contain3d gasoline hydrocarbons <br />ietection limits. <br />above methoc <br />Analyses of water samples from <br />wells MWl, MW2 ane <br />IW3 recorded benzene concentrations above state <br />:ontaminant Levels <br />mandated Maximun <br />(MCLs). Table 2. summarizes laboratory <br />;tie laboratory end chain -of -custody reports are <br />results and <br />in <br />presented <br />41. <br />Appendix <br />E <br />ober Point Property - 475 <br />!UR71P74t 4 <br />.7LP <br />:1 <br />f� <br />li <br />I <br />4 <br />a <br />i <br />t$ <br />r <br />or <br />G� <br />he <br />a <br />nt <br />RP <br />-4 9. <br />. <br />f <br />jg-w <br />r <br />, ,N r. •t i• <br />. r <br />