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1 Libbey Owens Ford Co.-Preliminary Soil and Groundwater Investigation Report <br /> Standby Generator Diesel Supply Line <br /> January 20. 1997 <br /> Page-7- <br /> clay, clay, or clayey silt. The borings were either terminated in these finer textured materials or <br /> encountered additional fine grained sand before termination. <br /> OVA-PID measurements of soil samples from GP2, GP3, GP7, GP8, GP9, GP 10, and GPI I <br /> ' were at or below the instrument detection limit of 1.0 part per million (ppm). No hydrocarbon odors <br /> were noted in the soil samples from these borings. OVA-PID measurements of soil samples from GPI <br /> ' ranged from 6 to 41 ppm, GP4 from less than 1.0 ppm to 68 ppm, GPS from less than .1.0 ppm to 203 <br /> ppm, and from GP6 from less than 1.0 ppm to 210 ppm. Hydrocarbon odor was noted in soil samples <br /> ' from borings GPI and GP4 through GP6. In these borings, hydrocarbon odor in the vadose zone soil <br /> increased with depth. <br /> No petroleum hydrocarbon odor was noted in groundwater samples collected from borings <br /> ' GP2, GP 7, GP8, or GP 11. Slight petroleum hydrocarbon odor was noted in groundwater samples <br /> from borings GP3, GP9, and GP 10. Strong petroleum hydrocarbon odor and undissolved petroleum <br /> 1 (free) product were noted in groundwater samples collected from borings GP 1, GP4, GP5, and GP6. <br /> The groundwater sample from GPI was submitted for laboratory analyses even though it contained a <br /> ' small amount of free product. The groundwater samples collected from GP4, GP5, and GP6 contained <br /> substantial free product and were not submitted for laboratory analyses. Field observations for each <br /> ' boring and the estimated extent of free product on the groundwater table are shown in Figure 4, <br /> Appendix A. <br /> Prior to backfilling with cement/bentonite mix, floating product thickness was measured in <br /> ' borings GP5 and GP6. A temporary one-inch diameter piezometer was installed in GP5 and GP6 after <br /> the collection of a groundwater sample. Borings GPI and GP4 experienced caving and therefore, <br /> piezometer installation was not possible. Approximately two (2) inches and approximately seven (7) <br /> inches of floating product were measured in borings GP5 and GP6, respectively, using a transparent <br /> ' bailer. <br /> ' �� CONDOR <br />