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TABLE A <br />ADDENDUM REPORT <br />ABANDONMENT OF SOIL EXPLORATION DR1LL HOLES <br />[n compliance with Section 4.07.3 (3), the following information is provided to the Colorado Division of Mining <br />and Geology (CDMG): <br />Total number of drill holes: 22 <br />Start of Drilling July IS 1996 Completion of drilling: July 19 1996 <br />Completion of Permanent Sealine• lulu 23 1996 <br />Name of Dnlline Contractor Lambert and Associates Montrose. Colorado <br />License Number otDrill and Rig: Unavailable <br />Tune oCCement/Sealant Used Readi-min Concrete (all holes/ <br />Description of how holes were worked: All holes mere drilled usine a 4" OD continuous Flight auger, which <br /> was removed ceriodically to allow split spoon samQlingat different <br /> depths. The number of split spoon samples per hole and the total <br /> depth of drilling varied. (See Table I1. Aficr drilling was completed, <br /> each hole was backfilled by the driller with cuttings to 10 feet below <br /> Grade. Mountain Coal Comoanv emolovees came in aRenvards. <br /> {generally within 24 hours), mined attd poured concrete plugs to <br /> within at least 3 feet below grade (a minimum 7 foot plug or minimum <br /> 0.G CF of concrete cer hotel, and filled the remainder of the hole with <br /> additional cuttines Surface disturbances due to the track mounted <br /> drill rig were hand graded and mulched with straw. <br />Hole Number' Surface Elevation Dulled Depth Dulled Diameter Water Table Depth <br />DH.I 621 L5' 17' 1" dry <br />DH.2 6338.7 1' 4" drv <br />DH.3 6340.2' 258" ~" dry <br />DH.4 6385.1' 23' 4" 12' <br />DH.S 6369.4' 26.5' 1" drv <br />DH.6 <br />DH.7 <br />DH.8 <br />DH.9 <br />DH.10 <br />DH.11 <br />DH.12 <br />DH. l3 <br />DH. I1 <br />DH. I S <br />DH.16 <br />DH.17 <br />DH.18 <br />6418.1' <br />6441.0' <br />6459.7' <br />6472.8' <br />6195.6' <br />6578.1' <br />6598.5' <br />6613.2' <br />6616.2' <br />6681.3' <br />6710.7' <br />6727.1' <br />6612.6' <br />155' 4" dry <br />9~ ~~~ dry <br />25.5' 4" 17' <br />~5' 1" 16' <br />17' 4" dry <br />IS' 1" drv <br />13.5' 1" dry <br />258' 3" 25.5. <br />~5' 1" 22' <br />25' 1" 19.5' <br />~~. 1.. dry <br />16' 4" dry <br />15.5' ~" 11' <br />208'- 4" 24' <br />15.5' 1" dry <br />20' 1" dry <br />39.5' 1" dry <br />DH.19 6693.5' <br />DH.21 6751.7' <br />DH.24 6794.8' <br />DH.25 6859.1' <br />• SEE ATTACHED LOCATION MAP <br />MountainCoal Company <br />8/19/96 <br />