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[ ~ -2 Rule 2.05.6(6)(b) requims a description of the worst possible consequences which subsidence could have for structures and renewable resource ]ands, if subsidence were predicted to Q~,cur. As subsidence was strictly prohibited within the Purgatoire River AVF, subsidence was not predicted to occur beneath Mr. Tatum's property. For the purposes of even further assuring that the room and pillar operations would not create surface subsidence effects, compliance with Rule 2.05.6(6)(b)(ii) and 7.05.6(6)(1) was specifically requimd under Stipulation 29 as part of the 1984 permit approval, to verify the permittee's conclusion that significant subsidence would not occur over the room-and-pillar areas. This stipulation required the applicant to submit a pillar strength calwlation demonstrating that subsidence would not occur as predicted. (This stipulation was later satisfed on August 28, 1984.) As a further method of ensuring the protection of the AVF, the original permit required the Golden Eagle Mine to demonstrate compliance with Rule 2.05.6(6)(c) and monitor five adobe houses situated within the AVF that would overlie the areas of less than 5096 extraction. These five houses, originally planned to be room-and-pillar undermined per the 1984 approved permit by the First North Main, were required to be monitored per Rule 2.05.6(~(c)(i)(D), requiring quarterly monitoring to commence one month prior to the initiation of mining beneath the houses. Constmction of First North Main ceased in 1988 before reaching the house closest. to the Main. Of these five strurxures, none have been undermined. As such, surveys of these five structures have not bar=n conducted. When the mine operator ceased development of First North Main, it began developing plans for the constn-dion of its Third North Main, which would parallel First North Main, but which would be situated to the Southeast of First North Main by about 7500 feet. These plans were approved by the Division in May of 1988. Because monitoring of surface monuments had yet to begin over First North Main, the Division required monitoring of the room and pillar operalion over Third North Main, for the purposes of demonstrating proof of the permittee's conclusions regarding surface subsidence effects (Rule 2.05.6(6)(b)(ii)). Eight monitoring points were established along a line perpendicular to the direction of advancement of Third North Main. This line of monuments existed within the Purgatoire River AVF. Surveying of these monuments occurred during the 1st, 2nd and 3rd quarters of 1988, per 2.05.6(6)(c)(i)(D). On August 25, 1988, We Division reviewed the results of the three surveys and concurred with the operator that significant settlement over the Third North Main had not been observed. This Division determination concurred with the operator's original predictions regarding protection of the AVF from material damages and diminution of reasonably foreseeable use, as described in Rule 2.05.6(6)(b)(ii).