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r Ripona Market October 28,2004 Corrective Action Plan rThe water samples collected from the three wells contained petroleum compounds The highest concentrations were found in MW-2 and the lowest to ' MW-1 ' Table of Laboratory Water Sam le Results (July 31, 2000) Sam le I D Gasoline I Benzene I Toluene I E-Benzene I Xylenes. Oxygenates MW-1 008 ND 13 22 85 ND ' MW-2 068 33 19 15 71 6300 mtbe, 1000 t-Btl , 2 3 tame MW-3 Oil ND 20 25 12 3 2 mtbe ND=Non Detect NA=Not Analyzed, Gasoline reported in Mg/L BTEX and Oxygenates in pg/L r The wells were surveyed for elevation and groundwater calculated to flow to the west south west with a gradient of 0 009 ft/ft A survey of nearby well receptors within a 2000-foot radius of the site determined that the nearest down gradient well was to the east, slightly over 2000 feet away On November 18, 2002 M J Kloberdanz & Associates, using a Geoprobe (direct push technology) provided by V&W Drilling, advanced a soil boring (B-2) located north of the former UST excavation to refusal at a depth of 59 feet Soil samples were collected every five feet to a depth of 55 feet for geological interpretation However, a groundwater samples were collected at 55 to 59 and at 45 feet in depth The Geoprobe was relocated adjacent to boring B-2 in an attempt to collect"60 foot soil sample at 60/feet attempted The Geoprobe was unable to penetrate below 38 feet in depth in the second boring Several soil samples, collected from bonng 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 I analyzed with the exception of 0 5 µg/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 1n depth I 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 Since the Geoprobe was not able to penetrate the consolidated sandy clays, the remainder of the work was rescheduled with a hollow stem auger and Simulprobe sampling device On January 21, 2003 M J Kloberdanz & Associates, using a hollow stem augur and Simulprobe sampling device provided by V&W Drilling, advanced a soil bonng to a depth of 60 feet to collect soil and water samples west of the former UST excavation (B-4) Soil samples were successfully collected every five feet for geological interpretation with selected samples submitted for laboratory analysis Laboratory groundwater samples were collected at 45 and 60 feet in depth with use of the Simulprobe sampling device All laboratory soil 3