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' LFR Inc. On April 30, 2007, LFR submitted a Well Permit Application to the SJCEHD for destroying monitoring wells MW-8 and MW-9. The application was accepted by the SJCEHD on May 2, 2007, and permit No. 0050449 was granted. A copy of the ' SJCEHD destruction permit is included in Appendix B. 2.2 Well Destruction Methods and Procedures ' An LFR California Professional Geologist supervised WDC Exploration and Wells (WDC), a California-licensed well construction/destruction company, in destroying ' wells MW-8 and MW-9 on May 8, 2007. A representative from the CIWMB, DTSC, and SJCEHD were present on site during well destruction activities. Copies of the field notes that were recorded during well destruction activities are provided in Appendix C. To destroy monitoring wells MW-8 and MW-9 in accordance with California Well Standards Bulletin (74-90: DWR 1991), Part III, Section 19, WDC personnel first evaluated each well by lowering a threaded, 1.5-inch-diameter, polyvinyl chloride (PVC) casing ("tremie pipe") to the bottom of the well to ensure that no obstructions were present that would interfere with the sealing procedures. At each well, a flexible, 2-inch-diameter hose was connected to the tremie pipe with a pressure fitting. The flexible hose was attached to a grout pump, which was placed ' inside a 55-gallon drum that contained approximately 40 gallons of freshly mixed neat cement grout. The neat cement grout comprised approximately 5.5 gallons of water per 90 pound sack of Type I-H Portland cement. The neat cement grout was pumped through the flexible hose and tremie pipe until the grout level reached the top of each well casing. Ten-foot sections of the tremie pipe were removed, while the bottom of the tremie pipe was kept submerged in grout, and grout was pumped into the well ' casing until the tremie pipe was completely removed from the well casing. After each well casing was completely filled with neat cement grout, a PVC end-cap ' fitted with a valve was cemented to the top of the well casing, creating an air-tight seal. The pressurized steam-wash nozzle was connected to the end-cap valve and was then used to apply approximately 100 pounds per square inch of pressure inside the ' casing. The pressure was applied to each well casing in an attempt to force the cement grout into the surrounding formation along the screened interval of the well. After it was determined that the grout level had stabilized, WDC overdrilled the top 5 feet of subsurface well casing with an 8-inch-diameter, hollow-stem auger. WDC then removed the top 5 feet of well casing and poured in a quick-setting concrete plug. The ' remaining hole was covered with native soil and was slightly mounded to account for settling over time. ' Additionally, WDC personnel removed the concrete-filled steel bollards that had previously served to protect the wellheads from vehicular traffic. rpt-well_destmct-mw8&9-09025-vl.dm:LFR Page 3