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Natural Soda, Inc. <br />Daub &Associates, lac <br />Well Abandonment Diagram <br />?may :,�3i�i3 �1e f �• <br />NATURAL SODA <br />Well: 90 -2 <br />Well Type: DS Aquifer Monitoring Well <br />Cement <br />Section: 26 <br />Hole Type: <br />Rotary Hole <br />IQQQQ Hole Plug and/or Cement <br />Township: 1S <br />Ground Elevation, ft: <br />6691.5 <br />(" -77� Bentonite Plug 1 Seal <br />Range: 98W WL Measurement <br />Elevation, ft: <br />6693.6 <br />Sand Plug /Sand Pack <br />Latitude: 39.927657952 <br />Diagram Date: <br />10125120`13 <br />Bridge Plug <br />Longitude: 108.363117979 <br />Total Depth, ft: 1874.0 <br />® Pump <br />® Transducer <br />0 <br />1... <br />1 <br />7F <br />2W — <br />300 — <br />500 — <br />am — <br />700 <br />am — <br />wo — <br />1000 - <br />Me - <br />1200 - <br />y.p - <br />1400 - <br />150D - <br />1000 - <br />1700 - <br />1000 - <br />1000 - <br />2000 <br />DRILLING and COMPLETION SUMMARY <br />0.19.0: conductor drill hole, 12.250" dia. (ast) <br />0.19.0: conductor casing, 9.625" OD <br />19.0 -1850: Intermediate drill hole, 6.250" dia. <br />0-1850.0: Intermediate casing, 4.500" OD <br />300.0. 1850.0: intermediate casing cement <br />1850.0- 1874.0: driliout, 3.875" dia. <br />1849.0- 1865.0: sand plug back <br />1865.0- 1866.0: bentonite plug back <br />1866.0- 1874.0: sand plug back <br />ABANDONMENT <br />1800.0: remove fish (sampling pump and tubing) <br />1800.0- 1830.0: video Inspection of casing revels <br />casing damage 1815.1817 <br />1800.0: set bridge plug <br />550: perforate (four V2" holes, 90 degree phasing) <br />275: perforate (four 112" holes, 90 degree phasing) <br />0. 1800.0: cement to surface <br />