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h <br /> 5 <br /> Exxon Company [ISA <br /> 202/225-2745.02 <br /> August 21 . 1987 <br /> TABLE 1 <br /> GROUNDWATER MONITORING SUMMARY <br /> Wellhead <br /> Well Elevation Depth to <br /> Date I .D. ft Elevation <br /> — �_ Water ft <br /> z Water ft1 Com__ mks_ <br /> r 06/26/87 MWl <br /> 100. 0047-79 52.21 <br /> MW2 99. 86 47.82 <br /> 52.04 i <br /> MW3 99.35 47. 28 <br /> 52.07 Sheen. <br /> Moderate , <br /> r MW4 <br /> 99. 66 47.5352. gas odor. <br /> 13 ,' <br /> MW5 <br /> 100. 41 48.31 i <br /> 52. 10 { <br /> SUBSURFACE CONDITIONS <br /> During the driIlin of boring the <br /> g g for monitoring <br /> S. . no product odors were noted. Water was first encountered wells 4 and <br /> `i <br /> depth of. 48 feet below ountered at a <br /> T � grade . The lack of odors iu �• <br /> corresponded with the photo-Ionization detector readings gen' <br /> from the collected soil sam l taken <br /> p es which ranged from 0 to 1 . 7 parts { <br /> T <br /> per million (Ppm) (see Appendix.,..I-, . <br /> _ :--._ - ri.11__..D _ .... <br /> D <br /> o gs). - .. <br /> j <br /> I.aboratary analyses of soils from the <br /> drilled by Groundwate Teehno Previous soil borings { <br /> lo�Y:. In. January and December of 1986 <br /> f did< not indicate the presence of hydrocarbon components in either .j <br /> Rs� > flP mon laoring wells 1 or 2 . << <br /> Monitoring well 3 encountered a <br /> relatively Tow level of hydrocarbon contamination w <br /> with de th hich decreased <br /> P (see Report. `Subsurface Hydrocarbon ipn <br /> nvestigati <br /> j Former, Exxon Service cite <br /> titin, 909 West Hammer .Lane. 5tackton;. <br /> £ _ California, December 22, 1988 <br /> w' ) Soil samples taken during the <br /> 12 <br /> OMEN, 1=11511 Elm <br /> • <br /> S :, <br />