The U.S. Geological Survey has released a new report detailing changes of groundwater levels in the High Plains aquifer. The report presents water-level change data in the aquifer for two separate periods: from 1950 – the time prior to significant groundwater irrigation development – to 2015, and from 2013 to 2015.
“Change in storage for the 2013 to 2015 comparison period was a decline of 10.7 million acre-feet, which is about 30 percent of the change in recoverable water in storage calculated for the 2011 to 2013 comparison period,” said Virginia McGuire, USGS scientist and lead author of the study. “The smaller decline for the 2013 to 2015 comparison period is likely related to reduced groundwater pumping.”
In 2015, total recoverable water in storage in the aquifer was about 2.91 billion acre-feet, which is an overall decline of about 273.2 million acre-feet, or 9 percent, since predevelopment. Average area-weighted water-level change in the aquifer was a decline of 15.8 feet from predevelopment to 2015 and a decline of 0.6 feet from 2013 to 2015.
The USGS study used water-level measurements from 3,164 wells for predevelopment to 2015 and 7,524 wells for the 2013 to 2015 study period.
The High Plains aquifer, also known as the Ogallala aquifer, underlies about 112 million acres, or 175,000 square miles, in parts of eight states, including: Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas and Wyoming. The USGS, at the request of the U.S. Congress and in cooperation with numerous state, local, and federal entities, has published reports on water-level changes in the High Plains aquifer since 1988 in response to substantial water-level declines in large areas of the aquifer.
“This multi-state, groundwater-level monitoring study tracks water-level changes in wells screened in the High Plains aquifer and located in all eight states that overlie the aquifer. The study has provided data critical to evaluating different options for groundwater management,” said McGuire. “This level of coordinated groundwater-level monitoring is unique among major, multi-state regional aquifers in the country.”
From email from the Uncompahgre Watershed Partnershiip Coalition:
10th Annual Ridgway RiverFest 20 years in the making
In 1997, when the town of Ridway applied for its first grant to restore the Uncompahgre River in town limits, a group of visionaries imagined the area becoming a river recreation attraction for the community. Little did they know that the restored length of river and the 11-acre park on its west bank would become the site of a major watershed celebration, attracting about 500 people each year for 10-plus years.
The town is celebrating the 10th annual Ridgway RiverFest, a free community festival at Rollans Park (next to the Highway 62 bridge), on Saturday, June 24.
The first riverside celebration was organized by the town government in July 2003 when a Great Outdoors Colorado grant was awarded to the town for major river restoration. But, the official Ridgway River Festival was started by a local nonprofit, the Mosaic Community Project, in 2008. The nonprofit was formed by local mothers hoping to establish a charter elementary school in Ridgway. Though they were unsuccessful, they had lots of energy and wanted to give back to the community so they raised funds through various events and awarded grants to service projects proposed by local students.
The group funded the installation of a bench by local artist Lisa Issenberg next to the river, and a bike rack by Jeff Skoloda by the pedestrian bridge in Rollans Park. The river festival became its signature event from 2008 to 2013. In addition to a watershed education area and nonprofit booths, the festivals featured live music, food vendors, Colorado beers and margaritas, including frozen ones created by Glenda the Blenda bike. The bike had been created by the Mosaic Community Project as a way of raising funds at local events.
Since 2008 until today, the festival has also featured on-river activities and races including hard shell and inflatable boats as well as standup paddleboards. The highlight is the “Junk of the Unc” where competitors race on home-made river-crafts made of all kinds of repurposed materials.
In 2011, the Uncompahgre Watershed Partnership, a local group that aims to protect and restore local water resources through collaborative projects, joined in the festival organization. The group was created in 2007 to bring stakeholders together to monitor and improve the water quality in the Uncompahgre River and surrounding watershed, and became a nonprofit in 2013.
The partnership took over the organization of the entire festival in 2014. About half the proceeds from sponsorships, silent auction purchases and drink sales at the festival pay for the entertainment and other expenses, and the other half of the proceeds funds future water monitoring, mine remediation and other related projects.
Part-time staff and volunteer board members have kept it going by enlisting the support of dozens of volunteers and nearly a hundred sponsors each year. Ouray Mountain Rescue Team and local resident Chris Haaland have kept the river races going every year and still volunteer their time to ensure the river activities are safe and fun.
While the same popular festival activities like live music from bluesman Kipori Woods and friends are repeated each year, some special additions have been made to the 10th annual event. The silent auction area, which was initiated a few years ago, has been dubbed the River Rat Marketplace and will offer more great deals than ever on donated products, services and certificates from nearly 50 companies. A Ute flute player will join Ute elder Roland McCook to share their traditional culture. Youth areas will include a River Fairy Forest with four activity stations and a bug science demonstration. Plus, a commemorative mural will be colored by the community, and drinks will be served in reusable, collectible festival cups.
The 10th Annual Ridgway RiverFest will be Saturday, June 24, from 10 a.m. to 6 p.m. For the festival schedule and information, visit http://ridgwayriverfest.org.
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From The Arizona Republic (Brandon Loomis):
Exotic beetles released by the U.S. government to kill exotic trees along the upper Colorado River have munched a destructive path into central Arizona, officials have confirmed, proving to be more mobile and resilient than predicted.
The tamarisk leaf beetle now threatens the endangered southwestern willow flycatcher and other birds that have adapted to the non-native tamarisk that grows so thick along some of the region’s rivers. The beetles can strip a tree of its leaves, ruining it as a home for the birds.
Arizona environmentalists and biologists worry the beetle’s June 8 discovery in Wickenburg dooms many of the remaining flycatchers. Salt River Project has invested millions of dollars and 2,400 acres in mandated habitat protections throughout the Gila River drainage as a condition of raising Lake Roosevelt and displacing old nesting areas.
Some people, like suburban Buckeye’s mayor, are cheering the prospect of a natural thinner for the shrubby tamarisks crowding the Gila River, where thickets of the trees are blamed for flood and fire risks.
But no one knows how much farther the beetles will spread if they find new paths into the Gila River drainage area, which stretches north and east on the Verde and Salt Rivers and south on the Santa Cruz and San Pedro rivers.
An Arizona biologist found beetles and their larvae living in tamarisks on the Hassayampa River, a Gila tributary west of metro Phoenix. The insects had previously moved south from Utah’s Virgin River to Lake Mead and then down the lower Colorado. From there they moved east along the Bill Williams River and its tributaries.
Now they’re within striking distance of the heart of what remains of flycatcher country.