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SII A-1 ;.13 GFtOiFNO Wr':. .Afd? , P; c Fi OAP[ G 'RQDU 1 Yr -P-M UEi`ERMINAI ON A waterlpetroleum prodcxt t t'serf$ct; s w rs te5 de!�rm'ne i,t�r: product thickness,if present,and n water level indicator sins use;': gw� .t w:,t; de�)r1t in monitoring we1 1s that do not contain free product Depth to groun4 ,;':er wa's Mease+red fron�tete tap pf the��^nifaring well casing,which has to the City ; ..t.Eli h nark with an elevation 51.70 feet above been saw@�to within JAI-foot relative mean sem lever(p; re Z). The tip of the water lev6 indicota7 way subjectively analyzed for prod=sheen. All mmurements and physical observations were recorded in the Geld on separate data sheet.4 presented in Enclosure R.0 SUIt s[ 1I AAI:tE,�iSES OF CRt3VN9kV.kT R Prior to purging a water sample w.s coIlected from the monitoring well:fur subjective analysis. The sample y retrieved by gently lowering a cleats,dispassble bailer to approximately one-half the bailer length past %23 the air/Uquid interfact' 'The bailer was than retrieved,and the sample contained within the bailer was examined for floating product and the appearance of a pat,aleum product sheen. MONITORING WELL p OPMFN I' pi1RGIPt ANDSAR3PI SAMPLING lume of water using a centrifugal pump or bailer. Monitoring wells were purged of three to four well vo Ground water removed from the wells vas stored in 55-gallon barrels at the site, 'The barrels were labeled with corresponding monitoring well numbers and the date of purging. Atte:purging,ground water levels were allrrn-ed to stabilize A water sample was then removed form each of the wells using a disposable bailer. If the well was purged dry, it was aliowed to sufficiently recharge and a sample was collected Samples were colicc-ted in air-tight vials,appropriately labeled,and stored on ice from the time of collection through the time of delivery to the laboratory. A chain-of-custody form was completed to ensure sample ry and analyzed within the EPA-specifiedintegrity. Ground water samples were transported to the laborato holding times for the requested analyses. Purge water will be c xllected from tEte storage hanr s in a vacuum truck and transported to an approp late facility for treatment and/or disposal.