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SPDSS
<br />Colorado Water Conservation board, Colorado Division of Water Kesources
<br />More Information Available from SPDSS
<br />Completion of Phase 3 brings more
<br />completed datasets and refined tools.
<br />The information and tools: available from SPDSS are
<br />changing and improving as the system continues toward
<br />completion. The following information is currently
<br />available for the South Platte Basin.
<br />• GIS mapping tool
<br />• HydroBase data
<br />• Structures, water rights, climate,, stations
<br />• Diversions and real time calls
<br />• Groundwater and aquifer data (groundwater levels,
<br />aquifer properties, aquifer configuration)
<br />• StateCU consumptive use model
<br />• Crop cover for 2001
<br />* Straightline diagrams
<br />• Irrigated acreage
<br />Most of the datasets are at your fingertips, available
<br />on the DSS website using a data management interface
<br />that allows the data to be used in the administrative
<br />and planning tools developed for SPDSS. To request
<br />information not available on line, please contact Ray
<br />Alvarado (303 - 866 -3517 or ray. alvarado @state. co.us).
<br />identify and rank areas for underground water storage, as
<br />requested under Senate Bill 06 -193.
<br />• Water users are using SPDSS datasets to analyze
<br />potential exchanges for alternate points of diversion
<br />and water rights transfers.
<br />SPDSS information Vail know...
<br />supports Roundtable Real time call data
<br />discussions. is available on the
<br />The data available through DSS website?
<br />the SPDSS project has been
<br />used for House Bill 05- 1177,. commonly known as the
<br />"Colorado Water for the 21st Century Act" This bill
<br />created the Interbasin Compact. Committee and the Basin
<br />Roundtables for ongoing discussions about needs within
<br />each basin and interaction among basins. For instance,
<br />part of the Interbasin Compact. Committee focus includes
<br />determining consumptive and non- consumptive use in each
<br />basin, including the South Platte Basin. Much of the work
<br />on irrigated acreages and consumptive use that is available
<br />from the SPDSS project is very useful to the Roundtables.
<br />SPDSS information is also helpful for Senate Bill 06 -179,
<br />which authorizes the Interbasin Compact Committee, .
<br />through the Colorado Water Conservation Board, to fund
<br />projects that promote and encourage sound natural resource
<br />planning, management and development of water and
<br />other natural resources.
<br />Variety of Proven Uses for SPDSS
<br />Water users are integrating available
<br />information into decision making process.
<br />Work by the SPDSS team (CWCB, DWR, and consultants)
<br />has led to the collection of large amounts of data and
<br />information. The SPDSS team has focused on developing
<br />comprehensive and accurate datasets that are being used
<br />to develop a groundwater model of the alluvial aquifer
<br />system, irrigated acreage, and GIS coverages. These
<br />datasets are ready to use to make water use decisions,
<br />whether you want to determine the current calls on the
<br />river or get data to model a water rights transfer.
<br />Water rights owners are using the datasets for modeling
<br />water rights transfers and estimating stream
<br />depletions,
<br />' Ditch companies and water districts are using the
<br />datasets to develop augmentation plans.
<br />• Scientists . and engineers are using the aquifer data to
<br />understand how groundwater pumping is affecting
<br />the aquifer and other water rights. It is also used to
<br />Displaying data spatially with GIS enhances
<br />data analysis.
<br />CIS coverages have been developed for the entire basin to
<br />easily view large amounts of information, including ditches,
<br />diversion structures, wells, groundwater aquifer data, and
<br />more.
<br />• View aquifer characteristics and consumptive use by
<br />crops, as shown on opposite page.
<br />• Ditch companies use diversion structure coverages to
<br />identify possible water rights transfers from one headgate
<br />to another.
<br />• Irrigated parcel data is newer addition to the
<br />information available through SPDSS. Snapshots of
<br />irrigated lands from 1956, 1976, 1987, 2001 and 2005 are
<br />available. The irrigated parcels are being mapped and put
<br />in GIS, and the irrigated lands are then linked with the
<br />ditches and wells that provide the irrigation water.
<br />H— —y- use the imgated panxl. data2
<br />• Ditch share owners and ditch companies determine
<br />visually what lands are irrigated by their ditch.
<br />C olorado Water Conservation j_joarci, ✓ olorado Division or Water Kesources
<br />Use GIS to overlay groundwater wells with aquifer characteristics, providing
<br />information needed to develop augmentation plans for wells.
<br />• Consultants use the irrigated lands coverage as
<br />a starting point to do change of use analysis to
<br />determine a baseline or average ditch share yield
<br />for the ditch. This information can be used in the
<br />future as prospective . buyers look to quantify the
<br />consumptive use yield of a ditch share.
<br />• Platte Valley Irrigation Company performed ditchwide
<br />analyses to define average ditch share yield using
<br />SPDSS irrigated parcel data. The availability of the
<br />data saved money for the ditch company in their
<br />analysis. Otherwise they would have had to interview
<br />farmers to find out what area they irrigate, etc.
<br />• The Northern Colorado Water Conservancy District
<br />has used the 2001 irrigated parcel boundaries and crop
<br />types developed by the South Platte DSS team to help
<br />them in setting up a system for monitoring crops and
<br />irrigated lands on an annual basis.
<br />SPDSS Tools Refined
<br />Up to date tools specific to the South Platte Basin
<br />have not always been available to help in planning and
<br />administering water within the basin. The SPDSS team
<br />is focusing on building and refining tools to serve the
<br />needs of users in the South Platte Basin, as expressed
<br />in initial public meetings and interviews with users
<br />throughout the basin.
<br />DSS website was refined to improve
<br />search features and access to tools.
<br />SPDSS, through the la rge r CDSS effort, provides a
<br />searchable website that is an easy way for anyone to access
<br />information. The website not only gives background about
<br />SPDSS, but also provides all final products and a map
<br />viewer tool. You can
<br />Use the pulldown menus on the home page to search for
<br />tools and information by basin or by type of information
<br />or tool.
<br />• Access HydroBase data (water rights, structures,
<br />groundwater, streamflow, climate) from the View Data
<br />pulldown menu on the home. page.
<br />• View real time call data from the View Data pulldown
<br />menu on the home page.
<br />• Review reports, data, memos, and other information
<br />related to each SPDSS effort including consumptive use,
<br />GIS and groundwater modeling, by using the Products
<br />pulldown menu on the home page.
<br />• View and build your own GIS map by clicking Map
<br />Viewer on the home page.
<br />Interactive Map Viewer allows users to
<br />tailor GIS maps to their needs.
<br />Map Viewer is an interactive tool available to you on the
<br />SPDSS website for viewing GIS layers. You don't: have to
<br />have CIS software or know how to use GIS.
<br />The map provides relevant water administration and
<br />modeling information for the South Platte Basin. By
<br />outlining an area of interest, the user can zoom in and view
<br />layers by checking or unchecking boxes next to the layers .
<br />listed at the left of the screen (shown on page 4). You can
<br />see where wells or structures or parcels, etc., are in relation
<br />to one another.
<br />Pace 2 rape 3
<br />Use GIS to evaluate the consumptive use of crops by crop type.
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