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Reservoir Operating Studies targets used call for a total drawdown of 10,000 of from full pool by the end of March each year. An "environmental release" is modeled below Stagecoach as required by the Stagecoach FERC license agreement. The minimum flow below the reservoir is either 20 or 40 cfs, depending on the season, or reservoir inflow; the 20 cfs is a hard minimum regardless of inflow. Releases from Stagecoach to satisfy this requirement are not counted against the annual storage decree limits if these releases are determined to be discretionary bypasses of free water, i.e., they are made in months when there was not a call against Stagecoach (this is usually the case in most model scenarios). In some model runs that represented the enlargement of-Elkhead Reservoir, the 9,000 of industrial pool at Stagecoach was assumed to be transferred to Elkhead for industrial purposes thus freeing 9,000 of in Stagecoach for other municipal and industrial use. This assumed transfer was justified based on growth projections that showed increases in industrial water use occurring primarily in the Craig area and increases in municipal water uses occurring primarily in the Steamboat Springs area. Steamboat Lake Steamboat Lake is modeled as having two storage pools: a 5,000 of industrial pool that serves as a backup water supply for the Hayden Station and an 18,068 of recreation pool. The only demand that can access storage in Steamboat Lake is the Hayden Station. Under temporary contracts over the past few years, water releases up to 2,000 of per year have been made out of Steamboat Lake to benefit the endangered fish in the Yampa River. This water has been stored by inserting stop logs in the spillway of the dam and has been released only when there was water stored above the spillway crest. However, the final operating studies do not reflect this operation because necessary decree changes and formal arrangements between the U.S. Fish and Wildlife Service and the Colorado Division of Parks have not been finalized. Elkhead Reservoir The existing Elkhead Reservoir is modeled as having two storage pools: a 8,310 of industrial pool accessible only by the Craig Station and a 1,668 of municipal pool accessible only by the City of Craig. The remaining 3,722 of of existing storage is dead storage. There are no minimum releases or winter drawdowns modeled at the existing Elkhead Reservoir. The enlarged Elkhead Reservoir is modeled as having three storage pools: a 1,668 of municipal pool accessible to the City of Craig, a 17,310 of industrial pool (8,310 original plus 9,000 transferred from Stagecoach) accessible only to the Craig Station, and a 22,200 of enlargement pool. In the final operations studies for the enlarged reservoir, the enlargement pool was used only for Yampa River mainstem instream flow enhancement. A minimum release of 10 cfs or inflow, whichever is less, is also represented for the enlarged Elkhead Reservoir. 2-8