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0 0 KS-7 and KI-7 Monitor Well Destruction 4502-04 Kearney-KPF Facility, Stockton CA Page2 inch(psi)of pressure was applied to push the neat cement into the filter pack. Pressure was applied for five minutes. The pneumatic packer was removed from the well casing and the MW was topped of with neat cement. After the MW was pressure grouted with neat cement, a cutting torch was used to cut the well casing and the conductor casing 1.5-feet bls. The existing asphalt road was cut 1-foot larger in diameter than the original borehole diameter. The MW vault, asphalt and road base were removed to approximately 1.5-feet bls. Neat cement was poured on top of the pressure grouted MW to form a 6-inch thick mushroom cap. Road base from the original excavation was used to back fill the excavation to 6-inches bls. On 07-Apr-06, a temporary 6-inch thick cold asphalt patch was placed and compacted to land surface in the excavation. On 14-Apr-06 Bonadonnas Asphalt Repairs, Inc. from Stockton, CA, removed the temporary cold asphalt patch and placed and compacted hot paving asphalt to land surface. The County of San Joaquin Department of Public Works inspected and approved the asphalt patch. Destruction of Groundwater Monitoring Well KI-7 On 06-Apr-06 WDC attempted to pull the submersible pump from MW KI-7. When the pump was pulled up to 9-feet bls,the pump became wedged within the well casing. The well casing at 9-feet bls transitions from 4-inch PVC SCH 40 to 4-inch mild steel (Appendix A). Within the well casing, a small lip approximately 1/16 of an inch was located at the transition from PVC to mild steel. After investigation the sounding tube wedged between the pump and the well casing. WDC pulled on the pump drop pipe until the PVC drop pipe snapped at the top of the pump. WDC removed the remaining pump wiring and sounding tube from the well casing by manufacturing a fishing tool on site. WDC was not able to remove the pump from the well casing. DUDEK requested approval from the San Joaquin County Environmental Health Department(SJCEHD) and the California Department of Toxic Services (DTSC)to push the pump to the bottom of the MW and pressure grout the pump in place. Harlen Knoll from SJCEHD was on site and observed the lodged pump and approved the variance of the MW destruction. Glenna McMahon with DUDEK received notification of approved variance in MW destruction from Kate Berger with the DTSC on 06-Apr-06 at 11:10 AM. WDC pushed the