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Greer Property ' 15634 Steinegul Road September 9, 2000 Escalon, California Page. 4 Report of Findings rother arrangements are made The wells will be allowed to stabilize for twenty- four (24) hours prior to sampling. ' All soil and groundwater samples were properly labeled with date collected, protect number, sample coordinator, and sample identification. Field records ' documented the above information and other significant data, such as names of on-site personnel, sampling methods, date and time of sampling, the number of well volumes removed before sampling, preservatives added (if any), and any rfiltration performed on samples. Table 4 and Appendix F provides a summary of the field data collected on July 24 and 25, 2000 during the groundwater ' sampling event. The samples were carefully poured from a Teflon bailer into clean glass vials ' with Teflon-luted screw caps and half gallon glass containers provided by the laboratory Care was taken to ensure that no air space existed in the vials by inverting to check for bubbles and re-sampling if necessary The groundwater ' samples were analyzed or extracted within 14 days according to their EPA methods Water samples collected for analysis were analyzed by EPA method 5030/LLFT for total Petroleum Hydrocarbons as Gasoline, EPA method 8021B lie for BTX&E, and EPA method 8260B for oxygenates (MTBE, Ethanol, tertiary Butanol, DIPE, ETBE, and TAME) Analyses were conducted by the State- certified laboratory GeoAnalytical Laboratories, Inc , in Modesto, California. The samples were refrigerated immediately for delivery to the laboratory and under no circumstances were opened by anyone other than laboratory personnel. Charm of Custody records were maintained at all times (Appendix Q. 4n August 10, 2000, WBF surveyed the well collar elevations of all wells on site, both existing and new monitoring wells to ensure consistency in measurements. Table 3 of this report provides the summary of the groundwater elevations Appendix G provides the survey notes for flus event. 3.4 Soil Sampling All soil sampling equipment was thoroughly steam-cleaned before and between sampling to prevent cross contamination. Relatively undisturbed soil samples were taken at intervals of not more than 5 feet in order to evaluate the subsurface materials.