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III IIIIIIIIIIIIIIII <br />STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />DepanmerN of Natural Resources <br />1 J 13 Sherman St.. Room ' I, 5 l+tl~~ <br />Denver, Colorado 80201 II <br />Phone: POJI 8661567 <br />FAX: U0J) BJ?8106 <br />DEPARTMENT OF <br />DATE: May 22, 1995 RESOLUJRRCES <br />Roy Romer <br />TO: Susan McCannon Governor <br />lames 5. Lochhead <br />,I Enecotrve Director <br />~r Michael B. Long <br />FROM: Jim Pendleton -~^-'-~"~-" D.°~,~°°Dheci°r <br />RE: Second Exdininat' of Tatum Residence <br />At your request, Randy Price and I accompanied Kewal K. Kohli, PhD. and Mike <br />Rosenthal of the OSM to examine the Tatum residence near Weston, Colorado on <br />May 5, 1995. Dr. Kohli is a member of the staff of the OSM Pittsburgh Eastern <br />Support Center, with expertise in the prediction of subsidence ground movement. <br />Our examination consisted of a walk through with Carl Gerity, consultant to the <br />Tatums. Ralph Lopez and Larry Bennett, representatives of Basin Resources <br />accompanied the tour. Our walk through toured the main floor, the second floor <br />and concluded with the partial basement. We then examined the exterior of the <br />structure. Finally, we examined the adjoining pastures and the railroad right-of- <br />way. <br />I specifically refrained from participating aggressively in the discussion, in order to <br />allow Kewal to formulate his own independent opinion. Dr. Kohli had examined <br />the earlier OSM/Tatum correspondence, the Woodward-Clyde Allen mine report, <br />and an additional pillar strength report prepared by Michael Beniawski for the OSM. <br />Dr. Beniawski, a researcher noted for his research in mine working mechanics and <br />ground control, recently completed a research project in pillar stability funded by <br />the OSM. I dedicated the majority of my time to observing exterior deterioration of <br />the adobe walls. <br />The extensive rains of the past three weeks have exacerbated the condition of the <br />deterioration of the southern wall of the two story section of the structure. The <br />exterior plaster skin is buckling on the second story of the south-facing wall. The <br />buckling is severe enough that the plaster coat may be in danger of separating <br />from the adobe wall and falling to the ground. Small silt deltas were obvious in <br />several locations, such as on the window sill of the south-facing <br />