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rights in the Dry Creek Basin, and projected depletions to Sage Creek stream flow due to <br />pumpage from Peabody's Seneca II-W Well No. 1. Exhibit 16-1 presents the "Referee's <br />Ruling" document which contains specific information such as structures to be augmented <br />(i.e., Seneca II-W Mine Pond 006), water rights to be used for augmentation, and the <br />statement of plan for augmentation. <br />In order to comply with is decreed plan for augmentation, Peabody has entered into two <br />water leasing agreements with the owners of significant righted water sources (J.C. Temple <br />Reservoir No. 1, Emrich Reservoir, and Stagecoach Reservoir). Details related to the <br />amounts of water leased from these owners can be found in Appendix 16-1 (see Water Lease <br />Agreement - Camilletti, and Agreement - Upper Yampa Water Conservancy District). Finally, <br />Peabody has constructed a table that lists monitoring sites, instrumentation, parameters, <br />and frequencies associated with the accounting of depletions and credits as required by <br />the approved plan for augmentation (see Appendix 16-1, Monitoring Plan for Compliance with <br />the Plan for Augmentation). This monitoring plan has been reviewed and approved by the <br />Division Engineer, Division 6, Water District 57. <br />• Alluvial Valley Floors <br />Introduction. An alluvial valley floor (AVF) analysis was performed by Keammerer <br />Ecological Consultants and Golder Associates, Inc. during the late summer and fall of 1990 <br />for Peabody Coal Company. The purpose of the study was [o evaluate the drainages in the <br />vicinity of the Seneca II-W Mine relative to their potential as alluvial valley floors. <br />The drainages that were evaluated include Dry Creek, Sage Creek, and Grassy Creek. Grassy <br />Creek will not be specifically addressed in this discussion as it is not in hydraulic <br />communication with the Seneca II-W property. The study area included the length of Dry <br />Creek from upstream of the Seneca II-W Mine to the town of Hayden and [he length of Sage <br />Creek from upstream of the Seneca II-W 1•line to the railroad embankment up drains ge of the <br />confluence of Sage Creek and the Yampa River. The lateral extent of the study area was <br />defined by the extent of valley fill and alluvial deposits. Color aerial photographs <br />(1"=1,000' scale), false color infrared photographs (1"=34,000' scale), and USGS surficial <br />geology maps were utilized in addition to extensive field checking. <br />Geomorphology. A geologic deposits map (Exhibit 16-21 was constructed as part of the <br />geomorphic analysis. Six types of geologic deposits vre re identified along the stream <br />courses. These were anthropo quoit fill, alluvium, valley fill deposits, fan Jeposits, <br />13 <br />