Laserfiche WebLink
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 <br /> sample 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 CPT- <br /> 24, also located on the 17717 Airport Way property, or in boring CPT-20, <br /> northeast of the 17717 Airport Way property <br /> 10-3 Analytic I Results from Mowtoring Wells on North Shoulder of <br /> The groundwater samples collected from the borings on the north <br /> shoulder of West Yosemite Avenue were analyzed by Kiff Analytical f o r <br /> TPH-D by modified EPA Method 3550/8015 and TPH-G, BTEX, fuel <br /> oxygenates, lead scavengers, alcohols and 1,2-DCP by EPA Method 8260 <br /> The analytical results are tabulated in Tables Four and Five, which <br /> contains an update of all site monitoring well analytical data to date <br /> Copies of the certified analytical report and chain of custody form are <br /> included in Appendix J <br /> Groundwater samples collected from monitoring well MW-13 contained <br /> 9,100 ppb TPH-G, 690 ppb benzene, 41 ppb toluene, 560 ppb ethyl <br /> benzene, 8 6 ppb total xylenes, 1,500 ppb MTBE, 7 6 ppb TAME, and <br /> 1,000 ppb TBA In general, the concentrations decreased slightly from <br /> the previous sampling with the exception of TBA, which has been <br /> increasing steadily from the initial sampling of this well This increase in <br /> TBA may be related to the breakdown of MTBE <br /> Groundwater samples collected from monitoring well MW-14 contained <br /> 24 ppb MTBE and 5 2 ppb TBA These results show a continued <br /> decreasing trend in concentrations since the start of groundwater <br /> remediation <br /> • <br /> Franks One Stop Report — March 2001 <br /> -17- <br />