Water in the Upper Gunnison Basin
Introduction by: Julie Nania, Water Program Director- High Country Conservation Advocates
In the West, water is life. We live in the Upper Gunnison Basin, an area that includes the headwaters of the mighty Colorado River that are above Blue Mesa. On an average year, the Gunnison River flow at 2.4 million acre feet. Approximately 90 percent of the streamflow in our basin is derived from snowpack above 8,000 feet – the Elk Mountains, Cochetopa and the Continental Divide that frame our alluvial valleys all contribute to Gunnison River flows. The rest of our precipitation primarily comes during our “summer monsoon” season from thunderstorms. While most of this water is delivered to the Colorado River in Grand Junction, a portion of this water is used consumptively and does not return to the river.
Water law in Colorado has its origins in the common water use practices that developed in early mining camps. The miner that was the first to divert water and apply it to a beneficial use had the first right to use that water. Evolving from frontier practices, this principle of “first in time, first in right” became the basis for the prior appropriation doctrine. When there is not enough water in a stream to satisfy all uses, those that had appropriated water at a later date (junior users) were unable to divert water until senior uses filed earlier in time had been satisfied. The prior appropriation doctrine still forms the basis of water administration in the Upper Gunnison Basin, in Colorado, and across most of the West.Click Here to Read More
Water uses in our community are diverse. Irrigators have been diverting water for agriculture since the 1870s, primarily for stock grazing and hay production. A small percentage of water in our basin is used for domestic and municipal uses, including drinking water for our communities, water for fire safety, landscaping and parks. We also have a ski industry that relies on water for snowmaking. These agricultural, municipal, industrial and domestic uses are typically considered “consumptive” uses because a portion of that water does not return to the stream system.
Our basin also hosts a range of “non-consumptive” uses- uses where water can be left in the stream or returns in its full quantity to the stream. These uses include environmental and recreational uses. Across our basin we have instream flow protections that provide minimum flows for fisheries. In addition to environmental flow needs, we also have recreational use needs for users that float and fish on our creeks and rivers (both recreational and commercial guiding outfitters). The Upper Gunnison River Water Conservancy District holds a water right for the Gunnison River Whitewater Park. This recreational in channel diversion right is junior to many other rights in the basin, but does protect flows for boating in priority.
Our community has united to face many past water resource challenges. We’ve successfully advocated against trans-basin diversions to keep water on the Western Slope. Community coalitions have worked together in water quality hearings to advocate for molybdenum standards that protect our ranching community and to establish stream temperature and heavy metal standards that are protective of our aquatic communities. We’ve secured water rights for the Black Canyon of the Gunnison National Park and have initiated a watershed management planning process to address future water needs.
Presently, we’re facing hydrologic changes in our basin that will alter the way that we use water resources. Climate change will impact our basin by changing the timing of runoff, reducing overall precipitation, and increasing evaporative loss with warmer temperatures. We can expect to see more sublimation where snowfall never makes it to the river because wind and solar affects turn to a gas state. As we face these new challenges, we will need to work together creatively to protect our existing water uses and watershed health in the Upper Gunnison Basin.
Please click a title to see a description, preview, or to download the document. The files are shown in the order they are added to our library by default. If you would like to sort them in alpha order or reverse alpha order, click on the “Name” title heading once for A-Z or twice for Z-A.
>Back to Document and Materials Index
SEARCH THIS CATEGORY
Title | Summary | Categories | Link |
---|
>Back to Document and Materials Index