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r� <br />While it was being processed, the first core barrel was cleaned <br />with Alconox & clean water, filled with clean metal tubes, and <br />set aside until needed. The same field procedure described above <br />was used for preserving, describing, and screening all cored <br />material <br />Additional cores were taken at 5' intervals from 10' to 40' as <br />described above, unused core material and drill cuttings were <br />placed in metal drums for later disposal The core taken from <br />301-31'611 contained wet, sticky, sandy gray clay. An interface <br />probe was run and located fluid at 30' bgl No odors or other <br />evidence of contamination were noted. However, the core taken <br />from 351-36'611 had a very faint petroleum odor, and a reading of <br />2 3 ppm was recorded by the PID meter when inserted in the <br />plastic bag containing a portion of the core The augers were <br />advanced to 391, and a final core was taken from 391-40161" it <br />consisted of wet, sticky blue clay A faint petroleum odor was <br />noted in some portions of the core, but no visible discoloration <br />or contamina- tion was noted Drilling ceased at that depth, and <br />the crew prepared to run casing & complete the well Refer to <br />PLATE XI for details of lithology, blow counts, recovery, and <br />other information <br />2" blank & slotted flush screw- oin <br />and run to 401; the bottom 20, consistedeofle020"40 PhorizontVC was aal up <br />shop -made slots with a screw -thread cap on the bottom The <br />remainder of the casing was blank After placing a cap on the <br />top of the casing, the annular space between the auger flights & <br />casing was filled with #3 washed sand by pouring down the annulus <br />from the surface The pipe was intermittently vibrated, and sand <br />fill was continually checked with a weighted line. Auger flights <br />were removed as sand fill increased An interface probe was run <br />inside the casing and located water at 25.71 bgl After verifying <br />the top of the sand, (it was at 181, 2 feet above the top of the <br />perforations,) a bucket of bentonite pellets was poured down the <br />annulus & wetted with clean water The top of the seal was <br />located at 16' bgl. After removing all of the auger flights, the <br />top of the well was covered with a metal drum and the flights <br />decontaminated prior to moving to the next well Refer to PLATE <br />XI -A for a schematic diagram of the well completion <br />After decontamination of all equipment, the rig was mobilized on <br />the site marked for monitoring well #3, as shown on PLATE X <br />Cores were taken at 5 foot intervals from 5' bgl to 311611 using <br />the same field procedures described for MW -4. No odors or PID <br />readings were detected in any of the cores, or the sediments on <br />the auger flights Refer to PLATE XII for details of lithology, <br />blow counts, core recovery, & other data <br />0 <br />