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To: Brandon Beggs <br /> October 31, 2017 <br /> Page 2 <br /> period had elapsed, the pressure was checked and found to still be 75 psi. This was an <br /> acceptable test result and the line was determined to be leak-free and ready for use. <br /> For well MLEX-4, the procedure was similar, but the details were somewhat different because the <br /> line was connected to the existing discharge line for wells MLEX-1 through -3. The line from <br /> MLEX-4 was tested on October 19, 2017. When MLEX-3 was constructed a tee with a 4-inch <br /> butterfly valve was installed in the vault for future connection to other wells (MLEX-4 in particular). <br /> The valve held pressure well, so it was possible to test only the pipeline section from well MLEX- <br /> 4 to MLEX-3. A similar procedure to what is described above was performed: the 4-inch line was <br /> filled with water and pressurized to between 85 and 90 psi for a 4 hour period. Wheeler personnel <br /> then went to the site to witness the 1-hour hold period. The line pressure was reduced from 85 <br /> psi to 75 psi and held for 1 hour without adding any water. At the end of the 1-hour hold period, <br /> the line pressure was measured at 75 psi. Again, this was an acceptable test result and the line <br /> was determined to be leak-free and ready for use. <br /> Both of the new well (MLEX-4 and-5) pipelines were therefore determined to be well constructed, <br /> leak free, and ready for operation. <br /> R:\1300\1333\1333.01\1333.01.07(Extraction We11s)\DOCUMENTS\2017 Seepage Wells-EPF Certification.docx <br />