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2.05.6 (6)(f)(ii)(c)-1, Sheet 1 of 2, delineates subsidence monuments installed in the field above the underground workings. A typical monument installation is depicted on Map 2.05.6 (6)(f)(ii)(c)-1, Sheet 2 of 2 of the application; the surveyed locations, orientations, and elevations of the 11 delineated structures are also provided. In addition to the required monitoring structures, survey monuments and water table elevations, the operator has provided a photographic record of all potentially affected structures. Finally, the applicant commits to the rehabilitation or reconstruction of any affected structure. Subsidence monitoring is currently in cessation, following approval of Technical Revision 2 on January 13, 1987. The applicant has committed to initiating monitoring six months prior to mining. This monitoring will continue quarterly for at least two years after mining into the projected area of influence. The results of the subsidence monument monitoring program will be submitted to the Division semi-annually. The results of the geohydrological monitoring will be submitted annually following the end of the water year. XV. Concurrent Surface and Underground Mining A. This section does not apply to the Red Canyon Mine. XVI. Operations on Alluvial Vallev Floors A. The applicant has identified several areas of unconsolidated streamlaid deposits. The majority of this material occurs as mudflow fans, shown ae Qaf on Map 7 of the addendum. The fan deposits are integrated both hydrologically and agriculturally with the modern stream terraces, and should, therefore, be considered in the alluvial valley floor determination. The applicant has also identified four distinct river terraces south of the area which are covered by alluvial mudflow deposits (see Map 7 of Volume 8). Trie uppermost terrace (Qt4) appears to be part of a dissected pediment which occupies the geographic highs between the stream valleys. The remaining terraces are topographically lower, and are part of the valley bottom complex. Flood irrigation ie very prolific in the Ward and Williams Creek valleys. Eleven major irrigation ditches were identified in the Ward Creek valley, and six major ditches were identified in the Williams Creek valley (See Map 8 of Volume 8). In addition to the main ditches identified, numerous lateral ditches exist to distribute the water from the major ditches. Water for these irrigation systems ie provided, in part, by the Granby Ditch, which transports irrigation water from reservoirs on Grand Mesa. The applicant has indicated that the agricultural practices along the two valleys are predominantly native pasture and hay for stock. There are also some apple orchards in the area, and some fields in small grains (e.g. wheat, oats, and barley). The applicant has provided no specific information concerning the agricultural significance of the alluvial valley floor to farming. Therefore, the areas designated ae alluvial valley floor are assumed to be agri- culturally significant, and the Division will make all three alluvial valley floor findings for the Ward Creek-Williams Creek alluvial valley floor. Based on the information provided by the applicant, the areas designated ae Qaf, Qtl, Qt2 and Qt3 along the Ward Creek and Williams Creek valleys are designated as alluvial valley floors because of flood irrigation capability. 22