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RiF ona Market Subsurface Soil and Groundwater Investigation III Report ' Page 3 The water samples collected from the three wells contained petroleum t compounds The highest concentrations were found in MW-2 and the lowest in MW-1 Table of Laboratory Water Sample Results (Jul 31, 2000) .Sample I D I Gasoline I Benzene I Toluene I E-Benzene I Xylenes Oxygenates ' MW-1 008 ND 1 3 22 85 ND MW-2 068 3 3 19 15 71 6300 mtbe, 1000 t-Btl , 2 3 tame ' MW-3 0 11 ND 20 25 12 3 2 mtbe ND=Non Detect NA=Not Analyzed, Gasoline reported in Mg/L BTEX and Oxygenates inµg/L The wells were surveyed for elevation so that a gradient can be determined Groundwater flow direction is from the WSW direction with a gradient of 0 009 ft/ft A survey of nearby well receptors was conducted within a 2000-foot radius of the site The nearest down gradient well to the east is slightly over 2000 feet away 2.0 SCOPE OF WORK �. On November 18, 2002 M J Kloberdanz & Associates, using a Geoprobe (direct push technology) provided by V&W Drilling, advanced a soil boring to a depth of 60 feet to collect soil and water samples north of the former UST excavation (B-2) Soil samples were collected every five feet to a depth of 55 feet for geological interpretation A 60- foot soil sample was not collected due to refusal at a depth of 59 feet However, a laboratory groundwater sample was collected between depths of 55 and 59 along with a sample from medium grained unconsolidated course sand at 45 feet in depth The Geoprobe was relocated adjacent to boring B-2 and a second attempt to collect at soil Isample at 60-feet attempted The Geoprobe was unable to penetrate below 38 feet in depth in the second boring Several soil samples, collected from boring B-2, were submitted for laboratory analysis due to the close proximity of this boring to the original release All soil and groundwater laboratory samples were reported below detection limits for the compounds analyzed with the exception of 0 5 pg/L of Toluene in the 60- foot water sample Boring B-3 was located east of the original UST excavation on November 19, 2002 Uncertain that the Geoprobe could penetrate the soil below 38 feet in depth an attempt to drill, without soil sampling, directly to 60 feet in depth was made The Geoprobe was unable to penetrate below 38 feet in depth A water sample was collected at 38 feet and the hole abandoned The water sample contained 1 1 µg/L Toluene Soil samples for laboratory or geological interpretation were not collected E