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r <br /> The only compound detected in groundwater samples collected from <br /> boring CPT-19 was 22 ppb TBA in the sample collected from 15-feet bgs <br /> No compounds were detected in the groundwater samples collected from <br /> 41-feet bgs. No deeper zones of high permeability were found in this <br /> boring <br /> The only compounds detected in groundwater samples collected from <br /> boring CPT-22 were 051 ppb 1,2-DCA and 097 ppb 1,2-DCP in the sample <br /> collected from 158-feet bgs No compounds were detected in <br /> groundwater samples collected from 15-feet bgs, 40-feet bgs, 51-feet bgs, <br /> and 98-feet bgs in this boring In addition, no compounds were detected <br /> in any of the groundwater samples collected from boring CPT-25, also <br /> drilled on the 17793 Airport Way property <br /> The only compound detected in groundwater samples collected from <br /> boring CPT-23 was 1 2 ppb 1,2-DCA in the groundwater sample collected <br /> from a depth of 83-feet bgs No compounds were detected in <br /> groundwater samples collected from 15-feet bgs, 28-feet bgs, 43-feet bgs, <br /> and 73-feet bgs in this boring In addition, no compounds were detected <br /> in groundwater samples collected from any depth sampled in boring <br /> CPT-24, also located on the 17717 Airport Way property, or in boring <br /> CPT-20, northeast of the 17717 Airport Way property <br /> 2.21 January 20101 .,,Qn-Site Geonrobe Drilling <br /> In January 2001, ASE drilled soil borings BH-A through BH-C at the site <br /> using a Geoprobe hydraulic sampling rig (Figure 6) These borings were <br /> drilled east and west of the line of recovery wells on the northern portion <br /> of the site to define the extent of contamination west of RW-1 and east of <br /> RW-5 Groundwater samples collected from boring BH-A contained 9, 100 <br /> ppb TPH-G, 4,400 ppb TPH-D, 10 ppb ethyl benzene, and 27 ppb total <br /> xylenes The groundwater sample collected from boring BH-B contained <br /> 150,000 ppb TPH-G, 36,000 ppb TPH-D, 420 ppb benzene, 5,900 p p b <br /> toluene, 4,700 ppb ethyl benzene, 25,000 ppb total xylenes and 120 p p b <br /> MTBE The groundwater sample collected from boring BH-C contained <br /> 0 57 ethyl benzene, 3 1 ppb total xylenes and 0 55 ppb MTBE These <br /> results indicate that there is significant contamination beyond t h e <br /> calculated capture zone west of the recovery wells <br /> 2 .22 Eebluary_ 2001 Groundwater Samnlin� <br /> In February 2001, ASE collected groundwater samples from t h e <br /> monitoring wells on the north shoulder of West Yosemite Avenue <br /> Frank's One Stop Remedial Action Plan — August 2001 <br /> -10- <br />