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TR-50 5th ADEQUACY REVIEW Rule 2.04.6 Geologv Description and Rule 4.14.3 Acid and Toxic Forming Spoils 8. Text in final paragraph of page 3, Tab 21, was amended as requested. Item Resolved. 23. Text on pages 13-8-1 and 13-8-2 was amended as requested. item Resolved. 2.05.4(2)(e) Revegetation Plan 41. Text on page 47, Tab 22 was amended as requested. Item Resolved. 2.06.8 Alluvial Vallev Floors 46. Amended mapping, description, and assessment of the Dry Creek parcels in the vicinity of John C. Temple Reservoir #2 and the former Olsen Ranch buildings was provided as requested. These parcels were originally determined to meet alluvial valley floor (AVF) criteria. However, based on the information presented, the Division now concludes that the parcels do not meet AVF criteria. Native wetlands dominated by species that are not agriculturally useful comprise the major portion of the northern parcel in the vicinity of the reservoir embankment. Meadow grass vegetation types potentially enhanced by subirrigation occur in the southern parcel and as a minor type in the northern parcel. The grass meadows may have been managed for hay production in the past, but the report indicates that there is no evidence of management for hay production in recent years. Further, the largest contiguous acreage of potentially subirrigated grass meadow owned by a single landowner is 1.1 acres. Estimated production from the 1.1 acre field would support less than 3 AUM's. The Division concludes that the grass meadow parcels, based on current management, split ownership, small size and limited production potential, do not play a significant role in support of an economically viable ranching or farming operation, nor do they serve a special role in agricultural land use in the region. For these reasons, we are prepared to make a negative alluvial valley floor determination for the segment of the Dry Creek valley depicted on the "Map 1 Attachment to Exhibit 16-3 (Sheet 2 of 2)". We have only one additional request. Please re-submit the narrative section of David Buckner's report in a format that can be directly inserted into the permit application, as amended text or a supplemental appendix.