BOARD00968

• Board Meeting Date: 1/26/2000
• Description: CF Section - Non-Reimbursable Projects - Northwest Colorado Council of Governments
• Board Meetings - Doc Type: Memo

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Nbrthwest Colorado Council of Governments
January 26-27.2000

Agenda Item 12d.

The group also has received in-kind assistance from the financial sponsors and from the State
Engineer's Office, the Water Quality Control Division, the Colorado Water Conservation Board,
the Bureau of Rec1amation, and the Colorado Division of Wildlife.

Study in Proaress
Hydrosphere Resource Consultants is completing the project study in accordance with the Scope
of Work, which includes:

1. Define Locations of Interest: Specific locations for which hydrologic and water quality
information are desired will be identified.

2. Set Up Water Resources Database: A database management system for the Upper
Colorado River Basin will be set up using an appropriate commercial database product that
is consistent with Study needs and Study participants' preferences.

3. Develop Natural Flows: Natural flows for 1947-1991 period of record will be developed
based on PACSM natural flows and other existing studies.

4. Compile Water Quality Data: Existing and readily available water quality data for the basin
will be compiled, focusing on identified locations of interest.

5. Update In-Basin Water User Data: Water resources data will be compiled for in-basin
water users including existing and projected future water demands, water rights/water
supply portfolios, diversion, storage and return flow facilities.

6. Review PACSM West Slope Operations: Three half-day meetings will be held with Denver
Water staff to review and understand the operational, water rights and hydrologic
assumptions in the West Slope portion of Denver's PACSM model.

7. Specify PACSM Modeling Scenarios: A number of hydrologic scenarios will be explored
in this Study, including today's conditions and future scenarios.

8. Analytical Tools and Map-Based Interface: Changes in stream flows and reservoir levels
resulting from various water development scenarios will be estimated with reasonable
accuracy at the specified locations in the study area locations.

9. Water Quality Assessment: Develop a basic analytical framework for water quality
assessment on a Basin-wide level.

10. Report on Specified Scenarios: The scenarios developed and explored in Phase II of the
Study will be described in a memo report, focusing on major assumptions and graphical
portrayal of results. The report will be designed to complement the basic illustrative
capabilities of the modeling tool and user interface rather than be a stand-alone document.

11. Deliverables: All database files developed for the project, a report documenting the findings
of the water quality assessment, and a report on specified scenarios and their outcomes.

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