CDSS_2004_Annual_Report

• Title: CDSS 2004 Annual Report
• Description: A recap of the work done for and by the Colorado Decision Support Systems.
• Decision Support - Doc Type: Publication
• Date: 2/1/2005
• DSS: All
• Basin: Statewide
• Prepared By: CWCB

contractor to implement the InStream Flow DSS.
The ISFDSS is another set of tools that build on the
existing datasets and GIS coverages of the DSS,
but focuses on tools that will help the Stream and
Lake Protection Section of the CWCB more
efficiently process and analyze information for
instream flow protection efforts.
including data, tools and models, for the Colorado
(green) and Rio Grande (blue) basins. Work
continues on the South Platte basin (red) system.
Long range plans of both the CWCB and DWR are
to eventually complete a DSS system for the entire
state (Republican River basin (gray), and the
Arkansas River basin (white)).
2004 CDSS Legislative Actions, Decision
Items, and Funding
SPDSS Legislative History
2004 saw the passage of the CWCB Construction
Fund Bill, House Bill 04-1221, which included
Bill Title Section DSS
System Amount Notes
SB 01-212 RGDSS $180,458/ 1.0
FTE DWR
SB 01-157 8 SPDSS $2,000,000 Data collection &
Design
HB 02-1152 12 SPDSS $2,000,000 Development
HB 04-1221 12 SPDSS $2,500,000 Development
additional funding for SPDSS. The additional $2.5
million will be used to implement Phase 3 of
SPDSS.
2004 Accomplishments
Statewide
This past year's emphasis has been on completion of
the groundwater modeling effort in the Rio Grande
basin and the collection, compilation and analysis of
data for SPDSS. Work associated with the original
CRDSS effort centered around the continuation of
the ongoing maintenance and operation of this effort,
which includes modeling updates, GIS mapping, and
refinement of modeling tools.
Rio Grande Basin
Development on RGDSS components is complete,
with the exception of the surface water model.
The surface water contract is close to completion;
the only tasks remaining include updating
modeling and documentation with revised unit
response functions, which will be obtained from
the final groundwater model.
The RGDSS surface water model is in the final
phase of calibration and will be completed by the
end of 2005.
During 2004, the Division of Water Resources
completed the RGDSS groundwater model. It was
used by the State Engineer in drafting the proposed
rules and regulations for the Confined Aquifer in
the San Luis Valley.
The CWCB, in cooperation with various entities in
the San Luis Valley, participated in updating the
irrigated land coverage in the San Luis Valley for
2002, which is available online at our CDSS
web site.
Colorado River Basin
As with last year, there have been numerous
activities using the CDSS tools. The State Water
Supply Initiative (SWSI) was completed in 2004.
The CWCB undertook an 18-month study to
explore basin-by-basin, existing water supplies and
existing and projected demands through the year
2030. Within the Colorado River Basin, SWSI
relied extensively on the work that was done under
the CRDSS, which provided the data and tools
needed to carry out SWSI objectives and goals.
The San Juan River basin water resource planning
model continues to be used in conjunction with the
USBR's RiverWare model to help better understand
the impacts of the re-operation of Navajo Reservoir.
Riverside Technology, Inc. was selected as the