Laserfiche WebLink
... Site Characterization:Clover)bvddle School,51 East Beverly Place, Tracy, CA. Page 7 <br /> 3.2.5 Grouting of Probe Holes <br /> Following measurement of depths to groundwater, both of the probe holes <br /> were grouted to the surface using a Portland cement grout. This work was <br /> performed under the direct observation of the SJCPHS representative. <br /> 3.3 Laboratory Analysis <br /> .. <br /> After receipt at Chromalab's laboratory, each of the soil samples recovered <br /> from the borings were analyzed for the following suite of analytes: <br /> Analyte Method of Analysis <br /> Total Petroleum Hydrocarbons EPA Method 8015M <br /> (quantified as Gasoline) <br /> Benzene EPA Method 8020 <br /> Toluene EPA Method 8020 <br /> Ethyl Benzene EPA Method 8020 <br /> Total Xylene Isomers EPA Method 8020 <br /> In addition, to the above suite of analytes, each groundwater sample recovered <br /> from the borings was analyzed for Ethylene Dibromide (EDB) and Fuel <br /> Oxygenates by EPA Method 8260B. The oxygenates for which analyses were <br /> made including methyl tertiary butyl ether (MTBE), tertiary butyl alcohol <br /> (TBA), di-isopropyl ether (DIPE), ethyl tertiary butyl ether (ETBE), and <br /> tertiary amyl methyl ether(TAME). <br /> Chromalab's laboratory is certified by the California Department of Health <br /> Services(DHS)to perform all of the analyses listed above. <br /> 3.4 Results of Analyses of Samples of Soil and Groundwater <br /> The results of the analyses performed on the samples of soil and groundwater <br /> recovered from the subsurface beneath the site are presented in Tables 2 and 3, <br /> respectively. Copies of the Certificates of Analysis issued by the laboratory, <br /> together with associated chain-of-custody documentation are compiled in <br /> Appendix D. <br /> As can be seen by inspection of the tables, no gasoline, or benzene, toluene, <br /> ethyl-benzene, xylene isomers (the BTEX compounds), EDB, MTBE, or any <br /> sic <br />