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i RESULTS 4,1 5011,SAMPLING - As discussed In Section 3,Site Investigation,seven sal]borings IT85,T86,T87, i TGG,739,}614 and NW5)were installed,representative soil samples obta lned,and i anal sea perforned for both 8T%5E and TPN as gasoline. Results from the sold samples are presented in Table 1. i r As lilustrated 1n Tah1e 1, only soil samples.06ialned from boring TB5 I's fl + significant petroleum hydrocarbon c0ntamfnetion. All other samples Collected 1,1 from 166,TB 7, 156 TB9,MW4, and HWS showed trace or non-detectable levels of both BT85E and TPH as gasoline, Hydracard0n levels in TB5 increased with depth i to a maximum concentration at a depth of 15 Feet and then decreased raptiddy to J non-detectable levels at a depth mf 70 feet, 4.2 GROUNDWATER SAMPLING As ion III "1 MW3,discussed HW4,sandl HW6ett Analyses wereo-Perform dsford 8T%es Er and TP}I as bOihMgaso7Mne J and diesel. Results from the groundwater sampling are pres nted an_Tahle 2, - "�.. As illustrated in Table 2,samples obtained from al love monitoring wells show J,. detectable levels of petroleum hydrocarbon constituents,with MW2 and MW5 showing significantly higher levels. Nd phase separated hydrocarbons were found 1n any _. monitoring well. - �J 4.3 GROUNDWATER FLOW rr .Lj The depths to water in the five munftoring wells were easured on several slope,most recently on Oecemher 27,1989 to deuraiine the general dl rection and gradient of groundwater flow,' Orcuudwater level data from this Investl9aticn L ` are tabulated below, _ _ I Groundwater Levels I veil�,. RE231evation Iftt Reath to Water(fit jJ,gya�,tq�'/(itl ffl i� MWI16,11 52.06 -75.65 MW3 16.54 52,09 .35.99 HW4 14.72 52.48 --35.80 - :i 16,90 52,94 -36.04 Top of cos Ing reference point elevation, as determined by Till" surveyor .. Elevat len of water surface,Occembar 27, 1989 .J l -16-