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1 <br />' 28 July 2005 <br /> . AGE-NC Project No 01-0886 <br /> Page 4 of 6 <br />' • TPH-g and TPH-d in accordance with EPA Method 8015M, and <br /> • BTEX and fuel oxygenates DIPS, ETBE, MTBE, TAME, TBA, 1,2-DCA, and EDB In <br /> accordance with EPA Method 8260B <br /> ' 23 WELL HEAD SURVEY <br /> On 07 June 2005, a California state-licensed surveying engineer from Morrow Surveying surveyed <br /> ' the location and elevation of monitoring wells MW-1 through MW-3,the global positioning system <br /> (GPS) location was surveyed to the nearest 0 1-foot relative to coordinate datum NAD 83 (1986),` <br /> and the elevation at the notch in the tops of the well casings was surveyed to the nearest 0 01-foot <br /> ' relative to vertical datum NAVD 88 from GPS observations The elevations of wells MWA through <br /> MW-3 were determined to be 30 07 feet, 30 86 feet, and 30 29 feet above mean sea level (MSL), <br /> respectively The results of the monitoring well survey are recorded In Table 1 The surveying report <br /> ' is presented in Appendix E <br /> ' . 3.0. FINDINGS <br /> ' Soil stratigraphy and ground water elevation,flow direction,and gradient were determined from field <br /> data The contaminant Impact to soil and ground water was quantified from laboratory analysis <br /> 31 STRATIGRAPHY <br /> ' In general, silt and clayey silt were encountered from surface grade to 50 feet bsg In MW-1, 67 feet <br /> bsg In MW-2, and 77 feet in MW-3,underlain by alternating layers of silty sand, sandy silt, sand, <br /> silt,and clayey silt to the total depths of the borings(80 feet to 85 feet bsg) Boring logs are provided <br /> In Appendix B`Geologic cross-sections of the site are Illustrated on Figures 3 and 4 <br /> ' 32 ANALYTICAL RESULTS OF SOIL SAMPLES <br /> A total of thirteen soil samples were analyzed for the constituents listed in Section 2 1 1 No analytes <br /> ' - - were detected at or above laboratory detection limits In the soil samples analyzed Analytical results <br /> of soil samples are summarized In Table 2 The laboratory report (CTEL Project No CT214- <br /> 0505045), quality assurance and quality control (QA/QC) report, and chain of custody forms are <br /> ' Included In Appendix F � <br /> 1 Advanced GeoEnvironmentel,Inc <br />