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• <br /> sand placement to eliminate bridging & voids Fall depths will <br /> be monitored constantly as the auger flights are slowly with- <br /> drawn When sand fill has stabilized, (a minimum of 2 ' above the <br /> top of the slots, ) a bentonite seal will be placed, and the <br /> annular space filled to the surface with a cement/bentonite <br /> slurry. Refer to PLATE II for a schematic of the proposed well <br /> completion. <br /> 9 . Each well will be fitted with a precast Christy-type box, <br /> with the PVC extending into the box far enough to allow placement <br /> of a locking casing cover The casing & box will be thoroughly <br /> grouted into place to ensure the integrity of the seal <br /> 10 Within 18-24 after completion, each well will be developed <br /> by use of a hard rubber cup or suitable device Purge fluids <br /> will be placed in suitably marked sealed containers & stored on <br /> location pending results of laboratory analyzes . <br /> 11 . As soon as practical after development, each well will be <br /> purged, water levels determined, and water samples taken per <br /> standard San Joaquin County EHD field protocol <br /> . 12 . Wellhead elevations & distances between wells will be <br /> determined by a licensed surveyor <br /> After receipt and analysis of all of the data, a report will be <br /> prepared and submitted to the San Joaquin County EHD staff for <br /> review & comment . <br /> Pending written approval of this workplan, we will begin <br /> soliciting bids from qualified vendors . When all the required <br /> documents have been received, we will prepare a package for <br /> client to submit to the State Cleanup Fund staff for pre-approval <br /> of the work. When the expenditure of those funds has been <br /> approved, we will proceed with scheduling the work. We will keep <br /> your office informed of the status of this project . <br /> Wtruunter & Associates A" GE�[� <br /> F14 , 1996calentine W}LLAMJ HUNTER <br /> F�l�9 <br /> NO 860 <br />