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Monitoring Well Installation Preliminary Report and Monitoring Well Destruction Work Plan <br /> 730 E.Channel Street,Stockton <br /> October 12,2004 <br /> Page 2 <br /> auger. The well was constructed with two-inch schedule 40 PVC piping to a depth of approximately 47 <br /> feet bgs. MW-3 was screened with 0.020 machine-slotted FVC from approximately 32 to 47 feet bgs. <br /> Monitor well MW-3 will be destroyed by over drilling the well to approximately 52 feet bgs, removing <br /> all well materials, and backfilling the boring with cement bentonite (three to five percent) grout. The <br /> grout will be injected into the boring through a tremie pipe that will be inserted to the bottom of the <br /> boring. The traffic box and any other refuse will be removed from the site. <br /> In your letter dated August 25, 2004, approving the Monitoring Well Installation Work Plan, you directed <br /> that the well installation, development, surveying, and initial monitoring be completed by October 25, <br /> 2004, and that a monitoring well installation report be submitted by December 10, 2004. On behalf of <br /> Raymond Investment Corporation, Condor respectfully requests a 30-day extension for both of these <br /> requirements to allow sufficient time for the destruction of MW-3 and the installation of the replacement <br /> monitoring well. If you have any questions or need additional information,please-call Lee Morse at(209) <br /> 234-0518. <br /> Sincerely, <br /> CONDOR EARTH TECHNOLOGIES, INC. <br /> SO Gto <br /> 41 LEE H. RRORSE ttp <br /> Lee H.Morse,R.G. cc —t Donald F. Kresse,R.G., C.Hg.,R.E.A. <br /> Associate Geologist 0 Senior Environmental Hydrogeologist <br /> a No.7654. ��- <br /> _ <br /> Attachments: - <br /> Figure 1 Vicinity Map <br /> Figure 2 Monitoring Well Locations <br /> Geologic Log for MW-3 <br /> cc: Beverly Garcia,Raymond Investment Corporation <br /> James L. L. Barton, California Regional Water Quality Control Board <br /> Pa3000_p j\3849 Raymond Investment Beverly Garcia13849E Raymond investments Groundwater Monitoring\Reports\Letter Report 10-12-04 <br /> 2-doc <br /> ti <br /> 4M <br /> �� CONDOR <br />