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."
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A new study by the Oregon Department of Environmental Quality found nitrate levels have continued to rise across the Lower Umatilla Basin Groundwater Management Area.
The report found about 40% of the wells tested exceed the limit of safe nitrate levels for drinking water. Exposure to nitrates can lead to blue baby syndrome, birth defects, thyroid problems and cancer, among other things.
Kaleb Lay, director of policy and research for the advocacy group Oregon Rural Action, said the state has known about the high levels of nitrate in the area for decades but has not done enough to address the issue.
"The state's approach has been basically just voluntary measures to reduce groundwater pollution," Lay explained. "Unsurprisingly, what we've seen ever since is nitrate levels continue to go up."
Lay pointed out synthetic fertilizer, liquefied manure and wastewater are the main sources of nitrate pollution in groundwater. Factory farms, including a major dairy supplying the brand Tillamook, spread their waste on Oregon fields. Lay added the contamination disproportionately impacts low-income Hispanic communities, many of whom work on the polluting farms.
Oregon Rural Action started testing wells in 2022, Lay noted, and has found disturbing levels of contamination.
"Hundreds of people were drinking water that was polluted by nitrates and had no idea," Lay reported. "They hadn't been warned about it."
A good place to start reining in the problem, according to Lay, is to collect more data. Senate Bill 747 would require farms 200 acres or larger to report how much fertilizer they use. It would allow the state to identify overuse and advise where farmers could use less fertilizer.
In written testimony, Oregon farmers opposed to the bill said they do not overuse fertilizer and are burdened by too many regulations.
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Legal action continues in efforts at cleaning up a portion of Ohio's waterways.
The Ohio EPA has been added as a defendant, along with the U.S. EPA, in a lawsuit filed by the Board of Lucas County Commissioners, the City of Toledo, and the Environmental Law and Policy Center, arguing the two agencies failed to have an effective plan to prevent dangerous amounts of phosphorus from occupying Lake Erie. Phosphorus produces cyanobacteria which appears in water as blue-green or brownish algae.
Sandy Bihn, executive director of the nonprofit Lake Erie waterkeeper, calls the EPA's control plan ineffective.
"We've got now, just in the last two years, an increase of 100,000 cattle coming into the Maumee watershed, most of it unpermitted, piles of manure on the ground here, there, and everywhere," Bihn pointed out. "You can actually physically see the manure running off into the streams."
Bihn noted commercial fertilizer phosphorus use has decreased by almost 40% but livestock is increasing and with that comes more manure runoff. She stressed the agencies being sued are more focused on the phosphorus in farmers' chemical fertilizers.
With the reduction in phosphorus, farmers are still having good yields. However, the number of livestock increases, which creates more untreated manure that seeps into nearby land and water. Excessive phosphorus pollution is joined by E. coli bacteria, pathogens, and other harmful pollutants in Ohio waterways and streams.
"About 90% of it is from runoff from the fields; agricultural runoff, and the two major sources of that are commercial fertilizer and manure," Bihn explained. "The path to reducing those harmful algal blooms is simply to reduce the sources, which is not something the programs are focusing on."
The Centers for Disease Control and Prevention said swallowing water, eating fish or blue-green algae supplements contaminated with cyanobacteria can damage a person's liver and central nervous system or cause death.
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The Eastern hellbender, North America's largest salamander and Pennsylvania's state amphibian, is one step closer to receiving federal protection.
The U.S. Fish and Wildlife Service is proposing listing the species as endangered under the Endangered Species Act.
Kassie Fenn, Pennsylvania student leadership and education coordinator for the Chesapeake Bay Foundation, said their student leadership program's research and advocacy efforts led to the Eastern hellbender becoming Pennsylvania's state amphibian in 2019. She added protecting ecosystems and habitat for the hellbender will also protect habitat for other organisms.
"It's really important for the Eastern hellbender to make it on the endangered species list," Fenn emphasized. "Not only will it draw attention to the hellbender habitat, but it will also draw attention to fresh water habitats in general, and the importance of clean water and the impact it has on ecosystems."
Fenn pointed out the public has until Feb. 11 to submit comments. She noted the Chesapeake Bay Foundation recommends people sign onto its online letter, while high school students can draft their own. Comments can be submitted online.
Fenn highlighted the strong link between the Eastern hellbender and water quality, especially in relation to outdoor recreation.
"A lot of anglers in Pennsylvania love to fish for trout, either through fly-fishing or with their spinning rods," Fenn observed. "Trout really need those clean waterways and healthy waterways to survive and thrive, just like our Eastern hellbender. "
Eastern hellbenders can grow up to 29 inches and have been known to live 30 years. Fenn said evidence shows the Eastern hellbender inhabits certain streams, particularly in western Pennsylvania, although its historical range is much broader, extending into the southeastern United States.
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