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left the site at 12:00 was back on site to observe the majority of the abandonment operation of MW-1. The inspector left the site shortly after ' 15:00. The Halliburton field engineer arrived back on site at approximately 15:00 with the overshot tool and sub (see photograph #6, Figure 3). The overshot tool and sub were connected to the drill stem which, in turn, was lowered through the rod chuck and into the casing of MW-2. The overshot tool was positioned over the section of rod inside the casing and then pushed on, hydraulically, with the drill rig ram. The successful recovery of the drill stem is shown in photograph #7, Figure 3. After recovery of the drill stem, the jet ' bit and sub were removed, the broken section of stem replaced, and additional drill stem sections added in order to position the open-end rod at 35 feet below the top of the well casing. The partially set grout was then washed out to 35 feet using potable water under pressure. The drill stem was then pulled and the jet bit and sub were connected. The twin-bin dry grout mix truck was dispatched to Woodland shortly after 15:00 to re-supply. The BSK and Halliburton personnel left the site and locked the gates at 17:30. Photograph #8, Figure 3 shows the jet bit and sub and the erosion of the section near the jet nozzle after the first day of use. 3.2 June 2 Activities - The BSK and Halliburton personnel were on site at 07:45 ' along with the new supply of dry grout mix. Difficulties experienced in the operation from the previous day were discussed along with general safety issues until 08:15. At 08:15, the drill stem with the jet bit and sub attached was lowered to 35 feet where a perforation operation was conducted. The remainder of the perforations were completed at the intervals proposed in the Work Plan. Halliburton's Compupac (data acquisition system) was not ' functioning due to a faulty pressure sensor on the RCM® panel. After observing a very low viscous return grout mixture, BSK's field supervisor and project manager questioned Halliburton's field supervisor about this condition. ' The Halliburton field supervisor stated that the grout mix on the previous day had contained two percent by weight of bentonite gel, but the mix used on this day was the original 50:50 cement/Pozmix® A mix proposed in the Work Plan. Also observed in the overflow return was a black colored residue which floated on the free bleed water. The weight of the return grout was determined to be 13.7 pounds per gallon using a Mud Scale. The abandonment operations on MW-2 were completed at 09:15. The SJPHS inspector was not on site during the jet grouting operations for MW-2. Two containment pools were used to allow the overflow grout mixture to solidify. The set up was started over MW-3 at 9:40 and completed at 10:05. The Halliburton field engineer indicated that the problem with the pressure sensor had been solved and the Compupac would be recording pressure, density, and rate on this well (see photograph #9, Figure 4). As previously discussed in Section 2.2, the jet grouting procedure was modified to eliminate the bottom ' perforation. The drill stem with the jet bit and sub attached was lowered into 5 &Associates