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

South Platte River Basin
Extensive data collection was continued in 2004
The work effort on the SPDSS is going full steam
ahead. Data collection under Phase 1 has been
completed and loaded into HydroBase for access by
existing CDSS tools. Technical memoranda
associated with those Phase 1 data collection efforts
are available for download at our CDSS website.
Phase 2 is also winding down with that effort being
completed by all contractors by early 2005. The
following are the Phase 1 and 2 products available
on the CD S S web site.
• Water District Administration Memoranda for
WD's 1,2,3, 5 & 64
• Division 1 Ditch Operation Memoranda for
several major ditch systems
• Technical Task Memorandum on the Denver
Basin Bedrock Aquifer configuration
• Technical Task Memorandum on the Denver
Basin Bedrock Aquifer properties
• Technical Task Memorandum on the South
Platte Alluvial Aquifer configuration
• Technical Task Memorandum on the South
Platte Alluvial Aquifer properties
• GIS coverage of the Denver Basin Bedrock
Aquifer configuration
• GIS coverage of the Denver Basin Bedrock
Aquifer properties
• GIS coverage of the South Platte Alluvial
Aquifer configuration
• GIS coverage of the South Platte Alluvial
Aquifer properties
• Historical water level data for Denver Bedrock
and South Platte Alluvium
• GIS coverage for irrigated lands in Water
Districts, 1, 2,3 & 64
• Standard GIS coverages for all of Division 1
Phase 3 contracts will be finalized in the early part
of 2005, which will wrap up the data collection
phase of SPDSS and start the modeling process for
both the Denver Bedrock and South Platte Alluvial
Aquifers.
We have had success in obtaining cooperative
agreements with farmers to conduct well pump tests
and collect water level data. We also had a
cooperative agreement with the USGS for the
drilling and testing of several wells. This provided a
cost savings to SPDSS and provided the USGS with
data they were not otherwise able to obtain.
The consumptive use contractor continues to meet
with water commissioners to better understand the
administration of the river in their particular water
districts.
2005 Goals
This coming year, 2005, will be devoted to getting
all West Slope river basin models updated using the
new StateDMI input generating tool as well as using
the latest version of StateMod. As part of this
update, all documentation will be modified to reflect
any changes made.
It is has been 5 years since the last irrigated refresh
for the Western Slope was done. In 2005, ground
truthing of certain irrigated parcels will be
performed to obtain the actual crop type irrigated.
This will be used to assign correct crop types to
other irrigated parcels, using Landsat imagery. The
same techniques used in the SPDSS will be
implemented with this update.
Groundwater modeling will be started in mid to late
2005 for both the Denver Basin Bedrock and the
South Platte Alluvium. The Denver Basin Bedrock
modeling will be done in cooperation with the
USGS, with the USGS being the lead agency. The
South Platte Alluvial model will be done by our
groundwater contractor, CDM and will encompass
the alluvial systems of the mainstem of the South
Platte, and those areas overlying the Denver Basin.
This will be a multi-year effort.
It is envisioned that the ISFDSS will be
implemented and completed by the end of 2005 or
very early 2006, depending on when the contract is
finalized. The CDSS team will also continue to
support the SWSI effort, as well as other
interagency activities where CDSS can be of
assistance.
Visit the CD55 on the web!
htt p://cd 55.5tate. co. u 5