#Colorado’s #Snowpack Was Almost Normal This Winter, But It May Not Be Enough Water For The Year — Colorado Public Radio

From Colorado Public Radio (Miguel Otárola):

The blizzard that dumped snow along the Front Range in March helped Colorado nearly reach its average snowpack for the winter, federal data shows.

But last year’s historically dry weather means that streams are likely to run lower than normal, potentially restricting the amount of water some consumers can use, experts said Thursday…

State snowpack levels were at 93 percent of the average for the state as of April 1, according to the Natural Resources Conservation Service…

That figure was higher in 2020 when the snowpack was above average for the same date. Still, a dry spring and hot summer made it one of the driest years on record and created drought conditions that sparked some of the worst fires in state history.

The outlook for snowfall at the beginning of the year looked dismal. But a string of strong snowstorms, including March’s blizzard, pushed state numbers back on track. Areas east of the Continental Divide had above average snowpack, but the Colorado River Basin on the west was below average.

Scientists can use the snowpack to predict the amount of water that will run through streams and river channels, said Ben Livneh, an assistant professor in civil engineering at CU Boulder. Although the snow will help with the drought, those streams are still expected to run below average, he said.

A major factor of this is the soil, he said, which has remained dry since last year. As the snow melts down the mountains, the water will first have to replenish the soil before it continues toward the reservoirs…

Forecasts don’t predict substantial precipitation before most of the snow melts this summer, Livneh said. But there is still the potential for recovery.

“The next couple of weeks is really critical,” he said. “If we can build more substantial snowpack, a longer lasting snowpack, that would actually help us a lot.”

Westwide SNOTEL basin-filled map April 4, 2021 via the NRCS.

Judge tosses challenge from environmental groups to halt #DenverWater reservoir expansion — Colorado Politics

Gross Reservoir — The Gross Reservoir Expansion Project will raise the height of the existing dam by 131 feet, which will allow the capacity of the reservoir, pictured, to increase by 77,000 acre-feet. The additional water storage will help prevent future shortfalls during droughts and helps offset an imbalance in Denver Water’s collection system. With this project, Denver Water will provide water to current and future customers while providing environmental benefits to Colorado’s rivers and streams. Photo credit: Denver Water

From Colorado Politics (Michael Karlik):

A federal judge has thrown out a legal action from multiple environmental organizations seeking to halt the expansion of a key Denver Water storage facility, citing no legal authority to address the challenge.

“This decision is an important step,” said Todd Hartman, a spokesperson for Denver Water. “We will continue working earnestly through Boulder’s land-use process and look forward to beginning work on a project critical to water security for 1½ million people and to our many partners on the West Slope and Front Range.”

The expansion of Gross Reservoir in Boulder County is intended to provide additional water storage and safeguard against future shortfalls during droughts. The utility currently serves customers in Denver, Jefferson, Arapahoe, Douglas and Adams counties. In July 2020, the Federal Energy Regulatory Commission gave its approval for the design and construction of the reservoir’s expansion. The project would add 77,000 acre-feet of water storage and 131 feet to the dam’s height for the utility’s “North System” of water delivery.

FERC’s approval was necessary because Denver Water has a hydropower license through the agency, and it provided the utility with a two-year window to start construction.

A coalition of environmental groups filed a petition in U.S. District Court for Colorado against the U.S. Army Corps of Engineers and the U.S. Fish and Wildlife Service, seeking to rescind those agencies’ previous authorizations for the project. They argued the agencies inadequately considered the environmental impact of expansion…

…Denver Water pointed out that under federal law, appellate courts, not district-level trial courts, are responsible for hearing challenges to FERC approvals. By challenging the environmental review process that led to the project’s go-ahead, the government argued, the environmental organizations raised issues “inescapably intertwined with FERC’s licensing process.”

On Wednesday, U.S. District Court Judge Christine M. Arguello agreed that the groups’ challenge was indeed wrapped up in the FERC approval.

“[W]here a party does not challenge a FERC order itself, but challenges another agency order that is inextricably linked to the FERC order, the FPA’s exclusive-jurisdiction provision applies and precludes this Court from exercising jurisdiction,” she wrote in dismissing the case.

The Daily Camera reports that Boulder County’s approval is the final step for the expansion project.

1.2M acre-foot #Greeley #water project to move forward after referendum effort falls short — The Greeley Tribune

Water treatment process in Greeley. Graphic via Greeley Water

From The Greeley Tribune (Trevor Reid):

The city of Greeley is clear to move ahead with the acquisition of an aquifer containing 1.2 million acre-feet of water as a new source of raw water after opponents of the project fell short of the required number of signatures to force a special election.

Save Greeley’s Water, which formed in opposition to the Terry Ranch Aquifer Storage and Recovery project, needed to collect 2,192 signatures by Thursday to require city council to reconsider an ordinance change that was required to make the Terry Ranch deal viable, or turn it over to a citywide referendum. On Thursday afternoon, they turned in just 2,028 signatures, falling at least 164 signatures short, according to City Clerk Anissa Hollingshead.

With the referendum effort’s failure, the city will move ahead on the purchase, which will supplement Greeley’s existing water resources…

City leaders and water experts have promoted the deal as a way to secure Greeley’s water future, meeting the needs of more than 260,000 people by the year 2065, according to projections from the state demographer. In drought years, city leaders plan to draw from the aquifer, allowing them to build wells as necessary and preventing steep water rate hikes. In wet years, the city plans to inject water into the aquifer for future use, not only saving the water for when it’s needed, but preventing evaporation…

The city’s next steps are to complete the purchase and refine the infrastructure design and phased implementation plan of Terry Ranch.