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. 002323 , . . 3 Concurrent to work on the three automated databases described above, work pro- ceeded on the development of a catalog of proposed water and energy development projects in the UCRB. This effort was originally envisioned as support for the hydrologic modeling effort, but because of the slow progress of the modeling effort the catalog was restructured as a reference manual for the field. The catalog contains descriptions of project features, identifies the project spon- sor, location and status with a map locating the project within the basin. The catalog contains descriptions of 11 existing thermoelectric powerplants, 8 pro- posed, g existing major hydroelectric powerplants, 5 proposed, g proposed tar sands projects, 24 proposed oil shale projects, 5 proposed coal gasification .projects, 23 proposed water resource projects, and 8 salinity control projects. ~ ~'!he catalog was recently compiled in final form and a limited number of copies --- ~re available from the Regional Office, FWS, Denver, Colorado. TASK II - Develop an Aquatic Resouce/Habitat Simulation Model (AR/HSM) for the UCRB Progress on the development of the AR/HSM has been slow having been hampered by several false starts due to the uncertainty of. funding committed to the effort. The original project goal of developing a completely new, transferable hydrologic model with a flexible network structure which could have been easily changed to accommodate to the addition or removal of tributaries was abandoned due to the loss of EPA funding. Instead, WELUT and Region 6 hydrologists selected the HYDROSS model, which is an existing, documented model developed by the U.S. Bureau of Reclamation in Billings, Montana. HYDROSS has many of the features of the originally proposed model plus it has a record of being accepted by water resource planners. HYDROSS has now been structured to accommodate 50 node points in the UCRB and data. input files have been created using the same hydrologic data files created for the Colorado River System Simulation (CRSS) model by the Bureau of Reclamation. Currently, work is underway to render HYDROSS fully operational for the UCRB by FWS Regional Office staff. Work is also underway at WELUT in Fort Collins to develop programs to link the hydrologic output of HYDROSS with temperature and biologic models used to predict and quantify stream habitat values. The models referred to above are the Physical Habitat Simulation Model (PHABSIM) and the Stream Network Temperature Model (SNTM). PHABSII1 projects fishery 'habitat over a representative or critical river reach based upon flow, velocity, depth, and substrate. The temperature model tracks stream temperatures throughout the stream network and predicts temperatures at given control points. The temperature model is currently in final development with documentation being prepared. The goal of the AR/HSM effort is to interface the biological and temperature modeling effort with the hydrologic model to quantify the effect of changes in flow regimes and channel morphology on aquatic habitat. When the models are \ \ \