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10101, <br /> *: AM B P. I A <br /> Chemical Analyses: Selected soil samples from well boring MW-10-117 were <br /> analyzed for TPHg, and benzene, toluene, ethylbenzene, and <br /> xylenes (BTEX)by EPA Method 8260B Soil samples from the <br /> remaining well borings were not collected for laboratory <br /> analysis as these drilling locations are at or near the locations of <br /> previous borings where soil sample analysis was already <br /> performed Soil analytical reports are included in Appendix C <br /> Groundwater samples collected from the monitoring wells were <br /> analyzed for the above, and total petroleum hydrocarbons as <br /> diesel (TPHd)by EPA Method 8015M, and methyl tertiary butyl <br /> ether (MTBE), di-isopropyl ether (DIPE), ethyl tertiary butyl <br /> ether(ETBE), tertiary amyl methyl ether(TAME),tertiary butyl <br /> alcohol(TBA),and ethanol by EPA Method 8260B <br /> Sort Disposal- Soil generated during field activities was temporarily stored <br /> onsite(either in a roll-off bin or in steel drums), and sampled for <br />• disposal The soil is currently being profiled for disposal and <br /> will be removed from the site and transferred to an approved <br /> disposal facility as soon as possible The soil disposal <br /> laboratory analytical report is included in Appendix C <br /> Well Materials Wells MW-3-79 and MW-10-81 were constructed using 2-inch <br /> diameter, Schedule 40 PVC, and wells MW-3-119 and <br /> MW-10-117 were constructed using 4-inch diameter, Schedule <br /> 40 PVC casing The wells were screened with Circum-Slot <br /> screen sized 0 010-inch, and #2/12 Monterey sand was used as <br /> filter pack. <br /> Screened Interval• Well MW-3-79 is screened from 69 to 79 fbg,well MW-3-119 is <br /> screened from 109 to 119 fbg, well MW-10-81 is screened from <br /> 71 to 81 fbg, and well MW-10-117 is screened from 112 to <br /> 117 fbg Monitoring well construction details are presented on <br /> Table 1 and on the exploratory boring logs (Appendix B) <br /> Well Development: Blaine Tech Services, Inc (Blaine) of San Jose, California <br /> developed and purged wells MW-3-79, MW-10-81, and <br />• MW-10-117 on November 2, 2005 Well MW-3-119 could not <br /> 1399 5 <br />