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1 Geolagual Uch*cs lne Well Abandonment Report Page 4 Project No 989 2 August 10,2005 Category 2 wells were filled with grout via a trenue pipe followed by pressurizing the grout filled well Approximately 35 psi of pressure was applied to each well for approximately five ' minutes The pressure cap was removed and the process was repeated if there was more than three feet of headspace above the grout slurry The upper five feet of the borehole was drilled out using 8-inch hollow stem augers guided down the center of the well casing via a guide ' rod attachment on the drill bit The upper five feet was backfilled with clean material The surface was capped with the appropriate material (i e concrete or asphalt) to match the surrounding surface conditions ' Displaced water was captured and placed into properly labeled DOT approved containers The containers were temporarily stored on-site until disposal was arranged Soil cuttings from the well abandonment activities were stored in properly labeled DOT approved drums and temporarily stored on-site until disposal was arranged ' Approximately 59 3 cubic feet, or 443 9 gallons, of grout was required for the decomnussioning of the ten wells associated with VWDC The calculations used to estimate the volume of grout are attached as Table 2 of Appendix A 3.0 SOIL DISPOSAL On July 28, 2005, Del-Tech Geotechnical Support Services removed six (6) drums of soil cuttings from the VWDC property The drums were transported to Forward Incorporated ' Landfill at 9999 South Austin Road, Manteca, California for disposal The drums were accepted by the landfill under manifest # 75647 The scale ticket and manifest are included as Appendix B 4.0 SCHEDULE & REPORTING ' The information gathered during this phase of work is presented in this report in an effort to meet the requirements of obtaining a "No Further Action Letter" Dr Ray Kablanow, a ' registered professional geologist, will supervise the project Copies of the report will be forwarded to both the appropriate County and State regulatory agencies (SJCEHD and CRWQCB)