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Ripona Market <br /> Vertical Groundwater Investigation II Report <br /> Page 3 <br /> The water samples collected from the three wells contained petroleum compounds The <br /> highest concentrations were found in MW-2 and the lowest in MW-1 <br />' Table of Laboratory Water Sample Results (July 31, 2000) <br /> Sample I D Gasoline I Benzene I Toluene I E-Benzene I Xylenes Oxygenates <br /> MW-1 008 ND 13 22 85 ND <br />' MW-2 068 33 19 15 71 6300 mtbe, 1000 t-Btl , <br /> 2 3 tame <br /> MW-3 Oil ND 20 25 12 3 2 mtbe <br /> ND=Non Detect NA=Not Analyzed, Gasoline reported in Mg/L BTEX and Oxygenates in pglL <br />' The wells were surveyed for elevation so that a gradient can be determined <br /> Groundwater flow direction is from the WSW direction with a gradient of 0 009 ft/ft <br /> 1 A survey of nearby well receptors was conducted within a 2000-foot radius of the <br /> site The nearest down gradient well to the east is located slightly over 2000 feet <br /> away <br /> On November 18, 2002 M J Kloberdanz &Associates, using a Geoprobe (direct push <br /> technology) provided by V&W Drilling, advanced a soil boring to a depth of 60 feet <br />' to collect soil and water samples north of the former UST excavation (B-2) Soil <br /> samples were collected every five feet to a depth of 55 feet for geological <br /> interpretation A 60-foot soil sample was not collected due to refusal at a depth of 59 <br /> feet However, a laboratory groundwater sample was collected between depths of 55 <br /> and 59 along with a sample from medium grained unconsolidated course sand at 45 <br /> feet in depth The Geoprobe was relocated adjacent to boring B-2 and a second <br />' attempt to collect at soil sample at 60-feet attempted The Geoprobe was unable to <br /> penetrate below 38 feet in depth in the second boring Several soil samples, collected <br /> from boring B-2, were submitted for laboratory analysis due to the close proximity of <br />' this boring to the original release All soil and groundwater laboratory samples were <br /> reported below detection limits for the compounds analyzed with the exception of 0 5 <br /> µg/L of Toluene in the 60-foot water sample <br />' Boring B-3 was located east of the original UST excavation on November 19, 2002 <br /> Uncertain that the Geoprobe could penetrate the soil below 38 feet in depth an <br />' attempt to drill, without soil sampling, directly to 60 feet in depth was made The <br /> Geoprobe was unable to penetrate below 38 feet in depth A water sample was <br /> collected at 38 feet and the hole abandoned The water sample contained 1 1 µg/L <br />' Toluene Soil samples for laboratory or geological interpretation were not collected <br /> Since the Geoprobe was not able to penetrate the consolidated sandy clays, the <br /> remainder of the work was rescheduled with a hollow stem auger and Simulprobe <br />' sampling device <br /> On January 21, 2003 M J Kloberdanz & Associates, using a hollow stem augur and <br />' Simulprobe sampling device provided by V&W Drilling, advanced a soil boring to a <br /> depth of 60 feet to collect soil and water samples west of the former UST excavation <br /> (B-4) Soil samples were successfully collected every five feet for geological <br /> 1 <br /> 1 <br />