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collected from 8 5-feet bgs in borings P-5 and MW-15 were submitted to Kiff Analytical This depth represented the highest OVM concentrations in boring P-5 All of the samples were analyzed for TPH-D by modified FPA Method 8015 and TPH-G, BTEX, HVOCs, oxygenates and alcohols by FPA Method 8260 The analytical results are tabulated in Table One A copy of the certified analytical reports and chain of custody forms are included ' in Appendix D The soil sample from P-3 11 0-feet bgs contained 0 080 ppm MTBE a n d ' 0 071 ppm tert-butanol (TBA) The soil sample from P-4 11 0-feet b g s contained 1 4 ppm TPH-G, 320 ppm TPH-D, 0 0073 ppm toluene, 0 01 1 ppm ethyl benzene, 0 092 ppm total xylenes, 0 033 ppm MTBE and 0 3 1 ' ppm TBA The soil sample collected from P-5 8 5-feet bgs contained 670 ppm TPH-G, 320 ppm TPH-D, 12 ppm toluene, 7 9 ppm ethyl benzene, 5 6 ppm total xylenes and 0 20 ppm MTBE No hydrocarbons were detected i n Isoil samples analyzed from borings P-1, P-2, MW-13, MW-14 and MW-15 No HVOCs were detected in any of the soil samples analyzed 7 . 0 MONITORING WELL INSTALLATION, DEVELOPMENT A N D SAMPLING MOD110ring Well Installation Groundwater monitoring wells MW-13 through MW-15 were installed in borings MW-13 through MW-15, respectively Piezometers P-1 through P-5 were constructed in borings P-1 through P-5, respectively All of these monitoring wells and piezometers were constructed with 2-inch diameter, 0 020-inch factory slotted, flush-threaded, Schedule 40 PVC well screen I and blank casing Each of these well are screened between 9-feet bgs and the total depth of the boring of 19-feet bgs Lonestar #2/12 Monterey sand occupies the annular space between the borehole and the casing from the bottom of the boring to approximately 1 -foot above the screen A 1-foot thick hydrated bentonite layer separates the sand from the overlying cement surface seal The cement surface seal in these shallow wells/piezometers was placed by gravity free-fall Monitoring wells MW-11 and MW-12 were constructed using 2-inch diameter, 0020-inch factoiy slotted, flush-threaded, Schedule 80 PVC well screen and blank casing Monitoring wells MW-11 is screened between 55-feet bgs and the total depth of the well of 70-feet bgs Monitoring well MW-12 is screened between 57-feet bgs and the total depth of the well of 72-feet bgs Lonestar #2112 Monterey sand occupies the annular space between the borehole and the casing in each of these wells from t h e ' Franks One Stop Report -- May 2000 -9-