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D3LA 96-90, 96-91 that cmiclusion on his. observations of the fau~dation of the horse. He stated at page 3 of his report: I entered the crawl space beneath the Hein floor from the partial basen=nt. ! * * I examined the crawl space faur7ation walls by flashlighC * * *. The foundation crmsisCs of field rock and mortar walls famded in excavated trench[e]s. Ztao to three causes of unfinished adobe blocks are placed cm tap of the field stone wall as a leveling course. Finally, wooden blocks support the floor joists. 'Ihe crawl space is excavated as much as 2 ~ feet into shale bedrock. + * + No crac]kiaxJ or disaggrEgation of the grout was observed at any location in the field rock walls or the adobe leveling cause. While props and shims had been installed at several locations beneath the joists, * * * rw moveme'nt appeared evident at any of these supporter} locations. Nome of these shimred supports had been unloaded or dislodged... ~ ' Howev2.r, in a subsequent metroratrhan to Susan McCann, Coal Program Supervisor, LNG, dated June 2, 1995, Pendleton admitted that he was unable to enter the crawl space beneath the eastern two-story portikm of the house or to make any observations regarding the.caridition of the founda- ticn there. In an undated "Trip Report," prepared by Mike Rosenthal, Chief, Physical Sciences Branch, CISSM, who took part in the E~bruary 1, 1995, investigation, Rosenthal concluded at page 2 that "there is little lilke- lihood that there has been subsidence associated with the first north operation of the Golden Fagle Mine that waild have affected the Tatum bane." In a FebxuaLy 16, 1995, mstioras~un to the Tatum file acca[ganying hie Trip Report, Rosenthal stated: I have reviewed the subject [LNG] report and agree with the conclusions made by Jim Pendleton. I have never observed actual subsidence damage to a structure where there has been no foundation inwlvs~nt. The observation of no drastic faur3ation failure by Jim Pendleton, in conjuncCian with worst case subsidence. modeling, done.by myself, world indicate that subsidence is not ttie cause of the cracking of"the Tatum hate. By letter dated February 23, 1995, LNG notified OSNI tYtat it had oan- pleted its investigation into the subsidence questicm and that "the Tatum residence is not within an area where mine subsidence related to the 1st North Main of the Golden Eagle Mine is ocn,n-inQ or has occurred. 'ittere- fore the T~ttan residence is not subject to mine subsidence impacts." By letter of the satre date, it informed the 7htwns of its ccinclusion. Five days later, the Acting Regional Director, Western Region Coordinating Center, CASM, sent informatiaz to the Thtvttn, which he stated had been . ` 151' IBLA' 292`' .