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i <br /> 45 feet bsg from pilot boring MW-8 Analytes of concern were not detected in the soil samples <br /> collected and analyzed from pilot borings MW-6 and MW-7 <br /> October 1999 - Seven soil borings (B-10 through B-16) were advanced to collect and analyze soil <br /> samples, in addition, one soil sample collected from boring B-11 was analyzed for permeability, <br /> I porosity, total organic content and specific gravity Petroleum hydrocarbon-impacted soil was <br /> detected in soil samples collected trom all sod borings except B-13,the highest concentrations were <br /> detected in soil samples collected from boring B-10, located adjacent to the former UST No 3 <br /> Iexcavation <br /> July 2001 - An 8-hour step draw-down ground water extraction pilot test was conducted at the site <br /> IHigh concentrations of petroleum hydrocarbons were detected in extracted ground water samples <br /> November 2004 - Based on the results of the July 2001 pilot test, a 24-hour constant rate ground <br /> water extraction feasibility test was performed at the site Detected concentrations of target analytes <br /> in extracted ground water samples were significantly lower than those reported for the July 2001 <br /> pilot test <br /> IGround Water Monitoring <br /> Based on analytical results of ground water samples collected during quarterly monitoring and site <br /> • assessment activities,the lateral extent of impacted soil has been defined to the north,east and west <br /> However, the vertical extent of the contamination plume, as well as the lateral extent to the south, <br /> is not well defined <br /> Cluster UST Area (North Area) <br /> IDecember 1998 - Two 10,000-gallon USTs and one 6,000-gallon UST were removed from a <br /> common excavation at the site <br /> October 1999-AGE advanced one sod boringB-9 for collection of soil and round water samples <br /> ( ) g P <br /> Significant concentrations of petroleum hydrocarbons were detected in samples collected from the <br /> boring Based on the findings from boring B-9,monitoring wells MW-9 and MW-10 were installed <br /> near the farmer UST excavation area <br /> July 2000 - Nine pilot borings were advanced at the site for installation of monitoring wells <br /> MW-I IA/B through MW-13A/B, air-sparging well AS-1 and ground water extraction wells EW-1 <br /> and EW-2 Petroleum hydrocarbons were detected in soil samples collected from pilot bonngs EW-I <br /> and MW-13B <br /> I November 2002 - Four pilot borings were advanced at the site for installation of monitoring wells <br /> MW-14A/B and MW-15A/B Target analytes were not detected above laboratory reporting limits <br /> in the soil samples submitted for analyses <br />