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depth to water was approx. 82.7' to 85.4' bgs with flow direction to the south east. MW#2, <br /> MW#3, and MW#5 showed contamination and MW#1, MW#4, and MW#6 did not detect <br /> any contamination. <br /> Of the four soil samples obtained from approx. 2a' bgs from the bottom of the former tank <br /> pit, only the south west sample showed elevated levels of contamination. None of the four <br /> sidewall samples showed contamination. The piping run soil samples did not show <br /> contamination. It should be noted, however, that the majority of the samples were <br /> analyzed using a freon extraction method used for diesel or heavier hydrocarbon <br /> fuels and the quality control/assurance data from the confirmatory lab was <br /> questionable, therefore the results may be unrepresentative of actual conditions. <br /> �W�. `•; � TRIZATTdK PROJECT <br /> y {Major ruler:Site 4 <br /> Alpine Way and West Lane,Stockton,CA j <br /> TGG Project?920916C <br /> E <br /> aTEX(EPA 8 1&TPH-GAS;EPA 015modf ANALYSES OF SOILS <br /> i SAMPLE OATS GATE _J TPH GAS 9ENZENE T-CLUENE ErHVUe< XYLENES ' <br /> 1 NUMBER .REC9VED ANALYZED IMwKgl 1MWXgl (-gAtgl 1MkVXg1 1'Mq/K41 <br /> i <br /> PL-1 9116192 9/16/92 NO NO NO NO NO <br /> PL-2 9116192 9116192 ND No NO NO NO i <br /> PL-3 9116192 9116/92 NO NO NO NO NO ! <br /> PL-4 9116/92 9/16192 NO NO NO NO NO <br /> PE.-5 9/16192 9/16192 NO NO NO NO NO I <br /> II N-1 9116192 9/16/92 ND NO NO NO NO <br /> N-2 9116192 9116192 NO NO NO NO NO ' <br /> i NW-! 9/16!92 9116/92 NO NO NO NO NO <br /> NW-2 9116/92 9116i92 NO NO NO NO NO <br /> S-1 9116192 9116192 NO NO NO NO NO <br /> 1 S-2 91i6i92 9116192 1490.5 NO 6.410 13.39e- 52.521 <br /> SW-2 9/16192 9116/92 NO NO NO NO NO <br /> SP-1 9/16192 9/16/92 NO NO NO 1\10 NO <br /> SP-2 9116/92 9116192 NO NO NO NO NO <br /> SP-3 9116192 9/16192 NO NO NO NO NO <br /> ! SP-4 9116192 9/16i92 NO NO NO NO NO <br /> SP-5 9/16/92 9/16192 NO NO NO NO NO <br /> SP-6 9116192 9/16192 NO NO NO NO NO <br /> SP-7 9116192 9/16/92 NO NO NO ND NO <br /> DETECTION LIMITS 1.0 0.005 0.005 0.005 0.015 <br /> I <br /> ND" INDICATES NOT DETECTMAT USMED OE-IEC-,ION UMrrS ! <br /> ANALYSES PERFORMED IN TEG'S OHS CZATIFIEO M08ILE LAB{16711 <br /> ANALYSES PERFORMED BY: Mr.Lot Jonsson&Mr_Henry Ar&nson i <br /> DATA REVIEWED BY: Mr.Mark JeMbak �J./t 1! <br /> The soil samples obtained from the installation of MW#4 through MW#6 did not show any <br /> contamination. However, soil contamination was observed in MW#4 from 25' bgs to <br /> 30' bgs as discolored and odorous soil. Leach rock was observed in this boring <br /> from 0' to 25' bgs and it appears to be a former septic leach pit. The soil sample <br /> collected at 30' bgs did not appear to have discoloration or odors. The 25' sample <br />