The #snowpack this winter is ‘pretty ugly’ but still not the worst #Colorado climatologists have ever seen — The #Aspen Times

Colorado’s snowpack has remained at the zeroth percentile since about Jan. 15, 2026. While this snow telemetry data shows a record-low snowpack, longer term snow course measurements show the years of 1976-77 and 1980-81 may have been worse. Credit: NRCS

Click the link to read the article on The Aspen Times website (Ryan Spencer). Here’s an excerpt:

February 6, 2026

At some long-term snow measurement sites, the winters of 1976-77 and 1980-81 were worse than this year, but not by much

Across Colorado, the state’s array of snow telemetry, or SNOTEL systems, have documented record-low snowpack conditions in numerous river basins and on a statewide level several times this winter. Since about Jan. 15, the snow telemetry system has had Colorado’s snowpack statewide sitting at the zeroth percentile, or the worst on record compared to the 30-year period from 1991 to 2020…

“We’ve been stuck for the most part in this warm and dry pattern across the West, going back really to the fall,” Colorado Climatologist Russ Schumacher said. “The snowpack numbers pretty much everywhere in Colorado are pretty ugly right now.”

Denver Water crews use a special tube [Federal Sampler] to gather snow samples near Winter Park as part of pre-set snow courses. Photo credit: Denver Water.

But going back in Colorado’s history, 1976-77 and 1980-81 are two winters often considered “the worst” for snow. Schumacher noted that the state’s snow telemetry system only began to be built out in the 1980s, so comparison can be difficult. That’s where snow course measurements come in. Snow course measurements, which have been taken by hand about once a month at some sites in Colorado since the 1930s, allow for more direct comparisons to those historically bad snow years.

“That allows you to actually make some comparisons to those really, really awful years from the 76-77, 80-81 that the longtimers there in the mountains will remember,” he said. “This year’s not as bad as those, but in a lot of places, it’s the second or third worst when you include those years.”

At Independence Pass, one site where snow course measurements have been taken for well over half a century, this is the second-worst snowpack on record, according to the data. The only year when Independence Pass had a worse snowpack was the winter of 1976-77. At a snow course measurement site in Blue River in Summit County that has about 70 years of data, this year was also the second-lowest snowpack on record, behind only the winter of 1980-81…Yet, at a snow course measurement site at Berthoud Pass, this year is only the 12th worst on record. The worst February snowpack on record at Berthoud Pass was, once again, during the winter of 1980-81.

Westwide SNOTEL basin-filled map February 5, 2026.

#Drought, #ClimateChange affect quality of well water: Study shows 15-25% of private #groundwater wells used for drinking water in the #SanLuisValley contain elevated levels of arsenic, uranium and other heavy metals — AlamosaCitizen.com

Kathy James talks at the 2026 Southern Rocky Mountain Ag Conference. Credit: The Citizen

Click the link to read the article on the Alamosa Citizen website:

February 3, 2026

There is another emerging issue that decades of drought and the warming climate is causing in the San Luis Valley – elevated levels of heavy metals in drinking wells that can cause health issues for households that rely on them.

It’s a topic Kathy James, Ph.D., and associate professor with the Colorado School of Public Health, knows well after spending the past three years working with families in the Valley that rely on private drinking wells.

James provided an update to the work during Tuesday’s opening day of the 2026 Southern Rocky Mountain Ag Conference. She reported that 15 to 25 percent of the private groundwater wells used for drinking water in the San Luis Valley contain elevated levels of arsenic, uranium and other heavy metals.

Her confidence in the findings is bolstered by the fact that 850 households in the different counties of the Valley participated in the study and provided samples to help James and her team evaluate the effect drought is having on water quantity and water quality.

“The comprehensive information that we have about distribution of metals across the Valley is by far one of the best we’ve seen in most western states that do experience elevated metals,” James said.

She noted how low snowpack impacts the age of water underground and ultimately the quality of water people are drinking from a private well.

The Upper Rio Grande Basin, like the Colorado River, is suffering from snow droughtsin the high elevations of the west and below-normal spring runoff levels.

Less snow, less spring runoff for recharge of the aquifers, and higher levels of arsenic, uranium and other heavy metals is the emerging issue. James talks more about the study and the team’s findings in the next episode of The Valley Pod, which streams Wednesday on AlamosaCitizen.com

Typical water well

Reclaiming water from contaminated brine can increase water supply and reduce environmental harm

The Hyperion Water Reclamation Plant in Los Angeles handles a massive amount of sewage and wastewater. Dean Musgrove/MediaNews Group/Los Angeles Daily News via Getty Images

Mervin XuYang Lim, University of Arizona

The world is looking for more clean water. Intense storms and warmer weather have worsened droughts and reduced the amount of clean water underground and in rivers and lakes on the surface.

Under pressure to provide water for drinking and irrigation, people around the globe are trying to figure out how to save, conserve and reuse water in a variety of ways, including reusing treated sewage wastewater and removing valuable salts from seawater.

But for all the clean water they may produce, those processes, as well as water-intensive industries like mining, manufacturing and energy production, inevitably leave behind a type of liquid called brine: water that contains high concentrations of salt, metals and other contaminants. I’m working on getting the water out of that potential source, too.

The most recent available assessment of global brine production found that it is 25.2 billion gallons a day, enough to fill nearly 60,000 Olympic-sized swimming pools each day. That’s about one-twelfth of daily household water use in the U.S. However, that brine estimate is from 2019; in the years since, brine production is estimated to have increased due to the continued expansion of desalination plants.

That’s a lot of water, if it could be cleaned and made usable. https://www.youtube.com/embed/4RDA_B_dRQ0?wmode=transparent&start=0 A short explanation of reverse osmosis, the leftover dirty water is known as brine.

How is brine disposed?

Today, most brine produced along the coastline is released into the ocean. Inland cities without this option typically leave brine in ponds to evaporate, blend it with other wastewater, or inject it into deep wells for disposal.

However, most of these methods require strict environmental protections and monitoring strategies to reduce harm to the environment.

For instance, the extremely high salt content in brine from desalination plants can kill fish or drive them away, as has happened increasingly since the 1980s off the coast of Bahrain.

Evaporation ponds require specialized liners to prevent the brine from leaching into the ground and polluting groundwater. And when all the water has evaporated, the remaining solids must be promptly removed to prevent them from blowing away as dust in the wind. This happens in nature, too: As the Great Salt Lake in Utah dries up, salty windblown dust has already contributed to significant air pollution, as recorded by the Utah Division of Air Quality.

Brine injected into the earth in Oklahoma, including into wells used for hydraulic fracking of oil and natural gas, was one of several factors that led to a 40-fold increase in earthquake activity in the five-year period from 2008 to 2013, as compared to the preceding 31 years. And wastewater has been documented to leak from the underground wells up to the surface as well.

A short video clip shows dust blowing over an area.
Plumes of dust rise from the bed of the Great Salt Lake in Utah in January 2025. Utah Division of Air Quality

Emerging treatment technologies

Researchers like me are increasingly exploring brine’s potential not as waste but as a source of water – and of valuable materials, such as sodium, lithium, magnesium and calcium.

Currently, the most effective brine reclamation methods use heat and pressure to boil the water out of brine, capturing the water as vapor and leaving the metals and salts behind as solids. But those systems are expensive to build, energy-intensive to run and physically large.

Other treatment methods come with unique trade-offs. Electrodialysis uses electricity to pull salt and charged particles out of water through special membranes, separating cleaner water from a more concentrated salty stream. This process works best when the water is already relatively clean, because dirt, oils and minerals can quickly clog or damage the membranes, reducing the performance of the equipment.

Membrane distillation, in contrast, heats water so that only water vapor passes through a water-repelling membrane, leaving salts and other contaminants behind. While effective in principle, this approach can be slow, energy-intensive and expensive, limiting its use at larger scale.

A trailer containing a small water reclamation system. Mervin XuYang Lim, CC BY-SA

A look at smaller, decentralized systems

Smaller systems can be effective, with lower initial costs and quicker start-up processes.

At the University of Arizona, I am leading the testing of a six-step brine reclamation system known as STREAM – for Separation, Treatment, Recovery via Electrochemistry and Membrane – to continuously reclaim municipal brine, which is salty water left over from sewage treatment.

The system combines conventional methods such as ultrafiltration, which removes particles and microbes using fine filters, and reverse osmosis, which removes dissolved salts by forcing water through a dense membrane, alongside an electrolytic cell – a method not typically employed in water treatment.

Our previous study showed that we can recover usable quantities of chemicals such as sodium hydroxide and hydrochloric acid at one-sixth the cost of purchasing them commercially. And our initial calculations indicated the integrated system can reclaim as much as 90% of the water, greatly reducing the volume of what remains to be disposed. The cleaned water in turn is suitable for drinking after final disinfection using ultraviolet or chlorine.

We are currently building a larger pilot system in Tucson for further study by researchers. We hope to learn if we can use this system to reclaim other sources of brine and study its efficacy in eliminating viruses and bacteria for human consumption.

We have partnered with other researchers from the University of Nevada Reno, the University of Southern California and the U.S. Army Corps of Engineers to help communities in the Southwest secure reliable water supplies by safely reusing municipal wastewater to serve everyday water use.

Mervin XuYang Lim, Ph.D. Student in Chemical Engineering, University of Arizona

This article is republished from The Conversation under a Creative Commons license. Read the original article.