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'f <br /> The samples were delivered to Sequoia Analytical and analyzed for Total Petroleum <br />' Hydrocarbons as gasoline (TPH-g) and as diesel (TPH-d) by Cal EPA-modified EPA Method <br /> 8015 and for benzene, toluene, ethylbenzene, and xylenes (BTEX) and MTBE by EPA Method <br /> 8020 Table I lists the analytical results for this quarter (in boldface type) and for all previous <br /> quarterly samplings TPH-g was detected in the samples collected from MW3, MW5, and MW7, <br />' at concentrations of 110, 85, and 56µg/L, respectively However, the laboratory reported <br /> unidentified hydrocarbons in the less than C7 or less than C8 range in each of these samples <br /> TPH-d was detected in the samples collected from MW3, MW5, and MW7, at concentrations of <br /> 66, 140, and 51 <br /> ,ug/L However, the laboratory reported unidentified hydrocarbons in the <br /> C9—C24 range in each of these samples Benzene was detected in the sample from MW6, at <br /> 1 2 µg/L, and MTBE was detected in the samples from MW3 and MW5, at concentrations of <br /> 21 and 11 ug/L, respectively The results are shown in Figure 1 Laboratory data sheets and <br /> chain-of-custody documentation are presented as Appendix B <br /> 3. WORK PROPOSED FOR NEXT QUARTER <br /> The seven groundwater monitoring wells and two vapor extraction wells will be monitored for <br /> g g P <br /> the presence of LPH The seven groundwater monitoring wells will be sampled, and samples <br /> will be analyzed for petroleum hydrocarbons and MTBE <br /> 1 <br />' WP61 70137Q795 TX 2 2 <br />