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October 28.2003 <br /> borings (95 feet deep) will be 10 inches. The monitoring wells will be constructed with 2- <br /> inch-diameter PVC casing and backfill materials as described in the attached Workplan. <br /> The aquifer test well will be constructed with 6-inch-diameter PVC casing. The annulus of <br /> each well above the sand pack will be backfilled to the ground surface using neat cement <br /> with approximately 5 percent bentonite powder. The wells will be completed at the surface <br /> using traffic-rated well boxes. <br /> Work for this project is scheduled to begin on November 3, 2003 and will be completed by <br /> December 12, 2003. <br /> We trust that the information provided in this letter is sufficient for processing the addendum <br /> to the well installation permit. If you have any questions or comments regarding this letter, <br /> please contact the undersigned at (661) 831-6906. <br /> Respectfully Submitted <br /> EzC Remediation <br /> �' �� /�✓ C64t'r� <br /> Mark W. Clardy, R.G. #7(95 <br /> Senior Geologist <br /> Attachments <br /> EZC Remediation 2 <br />