Releases from Ruedi Dam to the Fryingpan River are scheduled to decrease from 350 to 300 cubic feet per second on Monday, September 24 at 8 a.m.
This release rate maintains “fish water” deliveries to the 15-mile Reach for endangered fish species. Routine updates to follow. Feel free to contact me with any questions at firstname.lastname@example.org or by phone at 970-962-4326.
A state-imposed mandatory curtailment of water in the Colorado River Basin within Colorado was discussed as a looming possibility during a meeting of the Colorado Water Conservation Board on September 19 in Steamboat Springs.
Representatives from the Western Slope told the statewide water-planning board that while they favor creating a new legally protected pool of water in Lake Powell and other upstream federal reservoirs to help prevent a compact call on the river, they have significant concerns about the pool being filled outside of a program that is “voluntary, temporary and compensated.”
However, Front Range water users told the board that a voluntary program may not get the job done and that a mandatory curtailment program, based on either the prior appropriation doctrine or some method yet to be articulated, may be necessary to keep Lake Powell and Glen Canyon Dam functioning so Colorado, Utah and Wyoming can deliver enough water to California, Arizona and Nevada to meet the terms of the 1922 Colorado River Compact.
“With the repeat of historic hydrology beginning in the year 2000, Lake Powell will be dry, and when I say dry I mean empty, within about three years,” Jim Lochhead, CEO and manager of Denver Water told the CWCB board.
Lochhead said that while a voluntary demand management program might help bolster water levels in Lake Powell, “it doesn’t necessarily solve the problem.”
“So we may need — I know we don’t want to implement — but we may need other mechanisms to accelerate the creation of water into Lake Powell in the event of an emergency,” Lochhead said. “This is not something that Denver Water wants, or is asking for. What we are asking for is that the contingency plans be put into place. We need to have those plans in place before the system collapses.”
On Wednesday, Brent Newman, the chief of CWCB’s Interstate, Federal, & Water Information Section emphasized that neither they, nor the state attorney general’s office, is at this point “assessing, pursuing or recommending to the CWCB board any type of involuntary or ‘anticipatory’ curtailment scenario.”
And yet, such scenarios are on a lot of people’s minds.
(Please see related memo, slides and audio from the meeting. The audio is via YouTube, as provided by CWCB. The file opens well into the discussion, so click back to the beginning of the file, which opens just after the agenda item began, with brief introductory comments from CWCB Director Becky Mitchell. It’s well worth listening to. Also please see related story from Sept.18.).
Lochhead said Denver Water wants to see a voluntary, temporary and compensated program created as a “first priority,” but also said “I also don’t think that by not talking about mandatory curtailment we can pretend the problem will go away. We need to be thinking about it, and we need to be thinking about it proactively.”
However, Western Slope water interests as represented by the Colorado River Water Conservation District and the Southwestern Water Conservation District are concerned that if a new storage pool is created in Lake Powell, and a mandatory curtailment program is used to fill it, it could have dire consequences for agriculture on the Western Slope.
“This is our livelihood,” Kathleen Curry, a rancher in Gunnison who serves on the Gunnison River Basin Roundtable, told the CWCB. “This water is what we depend on. If we move in the direction of mandatory curtailment, and it isn’t equitable, you are going to have significant impacts to the water users in the state of Colorado, especially on the Western Slope.”
The two regional Western Slope water conservation districts had drafted a resolution they wanted the CWCB to adopt Wednesday, which did not happen, as the CWCB declined to vote on it.
The resolution stated that any mandatory curtailment program would be developed on a “consensus basis” with the two districts at the table, and not just be a directive of the state.
However, Bennett Raley, the general counsel for the Northern Water Conservancy District, which provides water to nearly a million people in northeastern Colorado, said the state, as a sovereign entity, should not be constrained by consensus.
He also said that mandatory curtailment may well be necessary in Colorado.
“If the drought continues, there are two paths,” he told the CWCB board. “If there is an infinite source of money, then voluntary works. Great, we’re all happy. If the drought continues and there is not an infinite source of money, then the state will go to mandatory. The Supreme Court will ensure that, sooner or later, it’s not a question.”
Part of the fear of such a mandatory program is that hardly anyone, outside of perhaps the state engineer, knows what it would look like.
“Ultimately it’s a state decision, it’s a decision of the state engineer as to how water rights would be curtailed to meet the state’s obligations under the Colorado River Compact,” said Lochhead, when asked after the meeting how mandatory curtailment would work. “The short answer is, I don’t know. There are a lot of questions and viewpoints.”
Lochhead did say Denver Water is willing to “work with the state and with the West Slope to ensure that any curtailment doesn’t disproportionally impact any region of the state, whether it’s on the West Slope or the Front Range, and that essentially the same rules apply to everybody.”
Editor’s note: Aspen Journalism is collaborating with The Aspen Times and other newspapers in the Swift Communications group in Colorado on the coverage of rivers and water. The Times published this story on Thursday, September 20, 2018. The Glenwood Springs Post Independent also published it on Sept. 20, as did the Vail Daily.
Due to revised demands, releases from Olympus Dam to the Big Thompson River are scheduled to rise from 83 to 101 cubic feet per second (cfs) tonight at midnight (cusp between Thursday and Friday), 21 September. Earlier this week I announced releases from Olympus Dam were planned to rise to 225 cfs and that figure has since changed significantly.
At this point in our forecast, we do not anticipate releases to the Big Thompson River rising above 150 cfs as we use the river to deliver C-BT Project water. On that subject, use of the Big Thompson to make project water deliveries is slated to run through October 12, and those deliveries vary frequently. I will of course continue to provide updates while keeping in mind the old adage: “Plans are disposable. Planning is indispensable.”
From email from Reclamation (James Bishop):
Yesterday, I messaged you that we at Reclamation no longer planned to increase releases to 400 cubic feet per second (cfs) from Ruedi Dam to the Fryingpan River but would instead be maintaining releases at 355 cfs. That change holds, but I wanted to further explain this.
Due to the persistence of very low river flow conditions in the Colorado River, the U.S. Fish and Wildlife Service, in coordination with Reclamation engineers and other Program partners, has decided to reduce the rate of release of Endangered Fish Recovery Program water stored in Ruedi Reservoir to allow these releases to be extended further into October. The reduced rate of release will enable a longer duration of “fish water” to be delivered to the 15-Mile Reach over the upcoming weeks, optimizing its benefits to the endangered fish.
…we are excited to share with you some of the topics that will be explored at the conference:
Women in Water
Conflict Resolution in the South Platte Basin
5 Year Anniversary – 2013 Flood Recovery Update
South Platte River Basin via Wikipedia
The upper South Platte River, above the confluence with the North Fork of the South Platte. Photo: Brent Gardner-Smith/Aspen Journalism
The South Platte River runs by a utility plant near I-25 in Denver. A group of Front Range water providers are working on a plan that includes up to 175,000 acre-feet of new water storage along the river.
Irrigation sprinklers run over a farm in Longmont in the South Platte River basin. One goal of an emerging storage project on the South Platte is make it easier to temporarily use water from agriculture to meet the growing needs of the Front Range metro area.
The Platte River is formed in western Nebraska east of the city of North Platte, Nebraska by the confluence of the North Platte and the South Platte Rivers, which both arise from snowmelt in the eastern Rockies east of the Continental Divide. Map via Wikimedia.
The South Platte River typically all but vanishes as it passes through Denver’s industrial neighborhood north of downtown, downstream of the Burlington Ditch diversion, near the Cherokee power plant. Photo/Allen Best
Flooded confluence of Cherry Creek and the South Platte River June 2015 photo via Andy Cross, Getty Images and The Denver Post
South Platte River Basin via the Colorado Geological Survey
Lower South Platte River
South Platte River near Kersey September 13, 2009.
Metropolitan Wastewater Reclamation District Hite plant outfall via South Platte Coalition for Urban River Evaluation
The Blue Mesa Reservoir, which feeds into the Colorado River, is at 39 percent capacity, according to the Bureau of Land Reclamation. The last time the reservoir west of Gunnison was at a similar level was in 1987, said Sandra Snell-Dobert, a spokeswoman for the Black Canyon of the Gunnison National Park and Curecanti National Recreation Area.
Soon, water levels are expected to drop to the point where launching and operating boats at most ramps won’t be possible, Snell-Dobert said
Low water levels and rising temperatures also have allowed for blue-green algae blooms. Although no direct environmental impacts have not been observed, some species of this algae can produce toxins that are harmful to dogs.
The Gunnison River Basin varied between 50 percent and 80 percent of its average snowpack this winter, hitting a low of 51.6 percent Dec. 20 and a peak of 79.81 percent April 20.
Other Colorado River reservoirs are facing similar shortages.
Lake Powell and Lake Mead in Arizona dropped to dangerous levels this week because of what scientists are calling the effects of the Colorado River’s worsening “structural deficit,” The Associated Press reported.
Lake Powell and Lake Mead hit 48 percent and 38 percent capacity, respectively.
The Colorado River basin, which feeds lakes Mead and Powell, has been drying out over the last two decades, scientists said. With the demands from farms and cities exceeding the available water supply, the strains on the river and reservoirs are being compounded by growing population, drought and climate change.
The Colorado Division of Water Resources reports the basins were 50 percent full at the end of August, in contrast to last year’s 120 percent average capacity. The average for this time of year is about 82 percent.
The Yampa-White, San Juan-Dolores, Rio Grande, Gunnison and Colorado river basins are classified as being in either “moderate” or “severe drought.”
The Blue Mesa Reservoir near Gunnison on the Curecanti National Recreation Area, is near historic lows — it’s 39 percent full — and has closed almost all its boat ramps. Iola closed Thursday night, the Lake Fork ramp closes Monday. That will leave only the Elk Creek ramp on the reservoir’s north shore along Hwy. 50 open, said recreation area spokeswoman Sandra Snell-Dobert. “Elk Creek, the ramp will remain open as long as we can keep it open.”
The last time water levels were this low on the reservoir was in 1987, Snell-Dobert said. Blue Mesa usually only closes if there’s not enough staff or if the reservoir freezes. The reservoir levels now have also caused some abnormal boating hazards.
“Mostly it’s rocks that are becoming exposed as the water level decreases. There are a lot of rock promontories and islands, and those kinds of things that we haven’t seen in a long time,” she said. But despite the boating restrictions, Snell-Dobert said shoreline fishing, kayaking, canoeing and other hand-launched, non-motorized boating are still allowed at the reservoir.
Staff at Frisco Bay Marina are trying to keep up with water levels that are dropping about one inch per day.
“And so an inch a day going down means the water line is moving 10 feet out every day, so we have to keep chasing it and moving the docks, which is definitely a lot of work,” said Tom Hogeman, the marina’s general manager…
Hogeman said he hasn’t seen the water this low since 2012 and it will only continue to go down as we head into the fall. The marina is typically open for rentals through mid-October but this year the season could end early.
The release from Ruedi will be increased Tuesday morning by approximately 45 cfs. After this change, the flow at the Fryingpan River gage below Ruedi Reservoir will increase from 178 cfs to approximately 223 cfs.
This flow increase was requested by the USFWS to support fish recovery efforts in the 15-Mile reach of the Colorado River.
This release rate will continue until further notice.