By Lourdes Medrano for Yes! Media.
Broadcast version by Suzanne Potter for California News Service reporting for the YES! Media-Public News Service Collaboration

SACRAMENTO, Calif. -- In late spring, Antonia Torres González' tears rolled freely at the rare sight before her: the Colorado River flowed again in what is usually a parched delta.

Torres González, a member of the Cucapá tribe who grew up in the river delta, couldn't help but relive memories of childhood romps in the once-lush waterway in northwestern Mexico. "It was like seeing the river come back to life," she says.

On May 1, 2021, the river once again flowed in its delta thanks to an agreement between the United States and Mexico dubbed Minute 323. Through Oct. 11, a total of 35,000 acre-feet of water (11.4 billion gallons) will be released downstream from Morelos Dam on the U.S.-Mexico border to quench the thirst of this long-withered ecosystem.

The mammoth endeavor to rejuvenate the river delta was years in the making and involved dozens of people, including water managers, policymakers, scientists, conservationists, and nonprofits from both sides of the border.

"We provide a lot of brainpower and blood, sweat, and tears, and commitment to this," says Nancy Smith, Colorado River Program conservation director at the Nature Conservancy.


A History Dried Up

The decadeslong deterioration of the Colorado River Delta began with the diversion of most of its water to farms and growing city populations in the United States, and by the early 1960s, very little flow made it to the river's lower reaches. Under a 1944 treaty, 1.5 million acre-feet of water-about 10% of the river's annual flow-was required to reach Mexico each year, though most of that drenches farmland in the valley of Mexicali, Baja California, without ever reaching the delta that should reconnect the river to the Gulf of California, also known as the Sea of Cortez.

Recent agreements between the countries, including this year's pulse as well as another eight-week pulse of water back in 2014, ensure collaboration in restoring the delta and managing river water, sharing surpluses and shortages.

The restoration work that grassroots organizers jump-started in the delta region some two decades ago-including the removal of nonnative vegetation and reforestation of thousands of acres of willow, cottonwood, and mesquite trees-would in time become a key factor in the cross-border undertaking. "We had a vision that someday the Colorado River could be connected again to the sea and to local communities," says Francisco Zamora of the Sonoran Institute in Tucson, Arizona. The nonprofit, which also has offices in Mexicali, works with communities to revive dying ecosystems.

To see the river flowing into the delta today, albeit temporarily, gives him hope that local communities may one day again rely on it for sustenance and recreation. Over the years, restoration work not only has provided local residents with jobs, but also inspired them to believe that the delta can flourish again. Zamora says seeing the river flowing has reinforced that notion, even for young people who had never seen it happen before.

"It's not only about wildlife, or birds and trees," he says. "It's also about the people."


People-Centered Conservation

Torres González remembers the Colorado River delta as an abundant source of water that sustained multiple generations of Cucapá families living on its banks. "When I was a child, the river was still flowing," she says. "We bathed in it, we played games, we fished there. We used to drink water from the river, and most of our families used the water to do the wash and for other household chores."

Gradually, the fish and the water flows diminished, as did the lush, native trees, and other vegetation that families traditionally used for food and medicine, recalls the tribal elder who now lives in a Mexicali neighborhood. "We no longer consume what grew naturally in the wetlands that were there," Torres González says.

This year's water delivery will allow nearby communities to enjoy the river again for five months, and directly benefits about 700 acres of restored landscape, Zamora says. "This is an area where you can find many species of birds and some are what we call target species, like the yellow-billed cuckoo." To thrive, target species require mature cottonwood and willow forest, so their presence in the delta is a good indicator that the habitat is improving and suitable for such birds, he says.

The Sonoran Institute and the Nature Conservancy are part of Raise the River, a coalition of environmental groups from Mexico and the U.S. working to restore the river delta. "The Colorado River Delta used to cover 2 million acres," Smith says. "It was this vast, watery landscape teeming with birds-really quite extraordinary."

Smith has no doubt the delta can make a comeback. "One of the really wonderful things we learned from the 2014 pulse flow is that with water, the ecosystem responds," she says. "The birds return, the cottonwoods and willow trees return, the local and migratory birds have increased-many of which are endangered."

The 2014 pulse flow released downstream, known as Minute 319, was roughly 105,000 acre-feet of water (about 1% of the river's annual flow) and transformed the dry delta into a river again for eight weeks. Subsequent scientific studies showed the water release was a boost to vegetation, greening restoration areas and increasing certain bird species-at least for a while. Even though the abundance of birds later diminished, levels remained higher than before 2014, according to a 2018 report from the International Boundary and Water Commission.

Lessons learned from the first water surge helped design the current water delivery to maximize benefits to the delta, Smith says. To keep the water from seeping into the ground early on, which happened in 2014, existing irrigation canals are being used to direct the flow toward restoration sites. Nonprofits and grassroots groups also fund on-the-ground projects in the delta and contribute donor resources to match those of the U.S. and Mexico governments.

"We work hand in hand with the government to do all the science necessary to make sure that we keep making progress and to make sure that whatever environmental water comes across the border is put to the best use," Smith says.

A Hopefully Wetter Future

For Torres González, seeing the river flowing again, if only briefly, restores her hope in the delta's resiliency-just like it did her mother, Inocencia González, before she died in June 2021.

"It would benefit us a lot if the water reaches the delta regularly again," she says. "In this water flow we saw that there were a lot of small fish that could have grown in this river, and it would've meant good fishing for the Cucapá."

As drought and climate change further strain a dwindling Colorado River and other natural resources around the globe, Smith says, international agreements may become more important. She hopes the U.S.-Mexico collaboration will bring about similar arrangements elsewhere.

"If we can restore the river, it will benefit a lot of people, but it also shows that we can protect nature, we can restore nature," she says. "And if we can do it in the Colorado River, we can do it in other parts of the world."

Lourdes Medrano wrote this article for YES! Magazine. Follow her on Twitter @_LourdesMedrano


get more stories like this via email

A new, high-tech wastewater treatment incinerator, used in only a few states, is on the wish list for one Michigan city.

Former state Representative - now Mayor of Warren - Lori Stone is asking her former colleagues in the Environment, Great Lakes and Energy Subcommittee for up to $100 million to upgrade her city's wastewater treatment system.

Warren's current plant was built in 1957 and serves over 137,000 residents. The new incinerator would oxidize organic matter contained in the sludge.

Warren Wastewater Treatment Plant Director Donna Dordeski said the old system is failing.

"One of the hearths of the furnace collapsed and failed, and we couldn't use it any longer until repairs had been completed," said Dordeski. "So, from the beginning - and all the waiting, getting the contractors and repairs completed - it took four months."

Dordeski said they're approaching the final steps of getting permits for the project. And they're still seeking funds, at the state and federal levels - including infrastructure grants that may be available.

The city has around 500 miles of sanitary sewer pipes to ensure its wastewater is treated and disposed of properly. Dordeski said when the current system breaks down, it affects local residents. Trucks have to pick up and carry sludge back and forth through their neighborhoods to nearby landfills.

"That's a 24-hour operation," said Dordeski. "We usually have several trucks. Its a continuous process, five days a week, where we process the sludge and those trucks have to be nearby, available, be loaded, exchanged for a new one. So, that's what has to happen when our incinerator is not operational."

Michigan has 95 wastewater treatment plants.

Warren's mayor believes if the new incinerator is approved, the city will have the opportunity to be the proving ground as a pilot program for this technology.




get more stories like this via email

As Wyoming and other states grapple with shrinking Colorado River water levels - new research pinpoints how much water is being diverted to feed cattle, to sprawling desert cities, and the river's 40 million other stakeholders.

The stakes are high in a time of persistent and widespread drought.

Brian Richter - president of Sustainable Waters - said if Upper Basin states can't deliver the volume of water required under a century-old agreement, Lower Basin states could force the issue with what's known as a compact call.

"The likely result would be that the Upper Basin states, including Wyoming, would be forced to use less water," said Richter, "so that more water could be flowing into Lake Powell and downstream into the Lower Basin."

Researchers found that in Upper Basin states, cattle-feed crops soak up 90% of all irrigation water - which is three times the amount that goes to all cities, towns, commercial and industrial uses combined.

Just 19% of the Colorado River feeds the wetlands and riparian areas wildlife depend on.

Richter noted that cities in Utah and along Colorado's Front Range are at risk because they have very low priority for accessing water under the 1922 Colorado River Compact.

Despite calls for closing off spigots used exclusively for cattle feed, Richter said blaming any single user is counter-productive.

"Farmers and ranchers are growing the things that people want, and are willing to pay a necessary price for," said Richter. "So they are just responding to consumer demands."

He said he believes the new data could be an important tool for Colorado River stakeholders as they work to build a long term plan to bring the total use of water back in balance with what nature provides.

Richter said right now, water use is at least 10% to 15% over that limit.

"We need a long range plan that says how much water do we want to use in the cities? How much water do we want to use on the irrigated farms? How much are the industries going to need?" said Richter. "And until we do that long range plan, we are just going to be reacting to these water shortages on a year-by-year basis."




get more stories like this via email

Colorado lawmakers are considering legislation to restore protections to key waters and wetlands struck down by the U.S. Supreme Court last year in a decision leaving more than half of the nation's water supply at risk of industrial pollution.

Margaret Kran-Annexstein, director of the Colorado chapter of the Sierra Club, said House Bill 1379 is in sync with Colorado voters, pointing to a recent survey which found nearly nine in 10 voters want to limit damage and pollution from development, industry and mining on wetlands and streams.

"Recent polling has found that massive majorities of Coloradans, whether they are Democrat, Republican or Independent, really support common sense water protections that would happen under this bill," Kran-Annexstein reported. "I think we can all agree that clean water is a necessity."

A coalition of conservation groups support the measure to create a permitting program for responsible development through the Colorado Department of Health and Environment.

Last month, Sen. Barb Kirkmeyer, R-Brighton, introduced an alternative proposal supported by the homebuilding industry, which would require a new division and staffing in the Department of Natural Resources.

Kran-Annexstein stressed clean, reliable water resources drive the economy and are vital for the health of communities. She believes the high court's ruling, claiming some waterways do not have significant connections to watersheds, was a win for corporate polluters who want to avoid permitting.

"In Colorado we know that there are a lot of streams and rivers and wetlands that run dry for certain parts of the year," Kran-Annexstein pointed out. "This ruling said that those waterways don't deserve protections and they don't count, just because they are seasonal."

Mountain states like Colorado are the source of drinking water for some 40 million Americans living in downslope states and Kran-Annexstein said the House bill is an opportunity to pass important and necessary protections after last year's Supreme Court decision.

"This decision left half of the waters across the United States unprotected by the Clean Water Act," Kran-Annexstein emphasized. "And really left it to states to make their own laws to protect state waters. And now it is the responsibility of states to step up and close that gap."