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1 <br /> Greer Property <br />' <br /> 15634 Steinegul Road September 9, 2000 <br /> Escalon, California Page: 3 <br /> Report of Findings <br />' All dulling equipment was thoroughly cleaned before drilling began, to prevent <br /> the introduction of contamination from off site, and between borings to prevent <br />' cross contamination. <br />' The borings were logged under the direct supervision of a registered <br /> professional using the Unified Soil Classification System (Appendices A & D) <br /> The color, texture, moisture, plasticity (if applicable), consistency of the earth <br />' materials, pertinent soil or bedrock characteristics, and any evidence of <br /> contamination was noted All water-bearing zones and the depths at which they <br /> were encountered was also noted on these logs. <br />' The cuttings from the drilling operation were containerized in 55 gallon drums, <br /> pending the results of laboratory data. <br /> 3.2 Well Construction (Monitoring and Extraction Wells) <br /> All materials used in well construction were thoroughly cleaned prior to <br /> . introduction into the boring A Bentonite or cement and Bentonite grout was <br /> lplaced at the bottom of the boring as necessary. A two inch diameter well <br /> casing (PVC) with end cap and factory perforations for placement in the <br /> I saturated zone (taking into account seasonal variation) was placed in the boring <br /> after the seal has been allowed to set long enough to support the weight of the <br /> casing. The screen and filter pack sizes is as noted in the well construction <br /> drawing. The casing and end caps were threaded or joined by stainless steel <br /> screws; no PVC cement was used. The filter packed extended at least two <br /> above the perforated zone A Bentonite seal 2- to 3-feet thick was placed in the <br /> annular space above the filter pack followed by a cement grout to the surface <br /> (Appendix A). <br /> Extraction wells, VE-1 and VE-2, were completed and screened between the <br /> interval 30' - 40' and 50' - 70', respectively. MW-7 is also identified as VE-3 <br /> and will be used during the extraction test to monitor the zone of influence <br /> MW-7 has a screened interval from 30' - 40'. <br /> 3.3 Well Development and Sampling <br /> The wells were developed on July 19, 2000. The water produced during well <br /> • development was containerized and left on-site in 55-gallon drums or other <br /> suitable containers for disposal as hazardous waste if deemed necessary upon <br /> receipt of laboratory results Disposal is the responsibility of the client unless <br />