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r n <br /> x t <br /> 1 � <br /> ATCAssQe xtes SrU SAFETY PLAN <br /> FACTS MCICGRO <br /> €lne unleaded aline `uisderground storage tank (UST) of unknown alae, and all <br /> associated piping atnd dispensing equipment were removed and transported.:offl;-site. <br /> Labors" analysis of soil samples collected from beneath the farmer UST locaatiow <br /> indicated the presence of detectable 'concentrations total petroleum hydrocarrbons. After <br /> the tank was removed,the area of the former tank was backrdled. <br /> Fiwr SA liftfigs (3B-1 through SB-4) were advanced at the site. Analytical results of awil <br /> unpin indicated the presence of petroleum impacted soil to a deptkoff approximately 28 <br /> feet below ground suaf�e( ) <br /> On J* 20,11"S,Advanced GeoEnvironmentol advanced one roil bearing to-a depth of 65 <br /> feet`bgs. The boring was completed as groundwater monitoring well MW-1. Analytical <br /> results indicated the presence of TPRg, toluene, ;ethyl benzene, and xylenes in the sample <br /> collected at 20 fed bgs. Leer levels of TPHg,;MTBE, benzene,toluene, and/or xylenes were <br /> detected in the samples collected at 35 and 'SO feet bgs. Well MW-1 was developed and <br /> sampled. Analytical results indicated that TPHg, MTBE, and BTEX were detected in the <br /> groundwater. <br /> WORKPLAN <br /> Aid <br /> Supervise the advancement of two soil boriags to 50 fact bgs and complete the <br /> bo4ugs as groundwater monitoring wells. At least two-soil<samples will be collected <br /> from each soil boring and one groundwater'sample will be collected from each well <br /> after well development. Samples will be analyzed for TPHg (EPA Method $015 <br /> ModilleA..BTEX PA Method 8020). and oxygenate find additives (EP:rA► Method <br /> 8260 <br /> PAGE <br />