Water experts will gather next week in Nashville to talk about the state of stream restoration, at the first national stream restoration conference.
Tennessee's heavy agricultural economy means the state's waterways are at risk for increased sediment.
Ken White, chair of the stream restoration nonprofit Resource Institute, said implementing strategies to reduce sediment and restore natural flow to streams improves water quality, wildlife habitat and outdoor recreation.
"More sediment in the rivers is not good," White explained. "Because every city and county or municipal organization that supplies clean water to a community, they have to pay for more chemicals, it's harder to clean the water for everybody to use for cooking, drinking, bathing."
Experts will discuss urban and rural restoration, dam removal, construction, flood plain reconnection, and habitat improvement.
Adam Williams, president of Brushy Fork Environmental Consulting, said residents are increasingly aware of the link between healthy water and reducing erosion and sedimentation, and are feeling the effects of climate-related flooding and extreme weather on local waterways.
"Meeting landowners, knocking on doors and finding willing landowners to participate in grant-funded work," Williams outlined. "Putting in riparian buffers, explaining to residential, commercial, agricultural landowners in ways to use best management practices to stabilize their creeks."
White added stream restoration can improve community health, increase property values and spur local economic activity.
"We don't even hesitate to buy sunscreen before we go to the beach, or we're out in the sun," White noted. "The more we can educate water professionals, in order to have quality water for decades to come, we're gonna have to do a better job of being good stewards and managing what we have now."
According to the Environmental Protection Agency, more than half of rivers and streams in Tennessee are considered impaired.
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Both water quantity and quality are important in the dry climate of Nevada. Now, a proposal from the Environmental Protection Agency could roll back protections for the state's water resources.
EPA administrator Lee Zeldin said he wants to reduce protections granted under the Clean Water Act in an effort to undo "unfair burdens" on farmers and landowners. The 1972 federal law aims to maintain and restore the nation's waters.
Natasha Majewski, climate and energy consultant for the Nevada Wildlife Federation, said the waters covered by the act have changed over the years, but it is all an interconnected system.
"Lincoln County doesn't have the same amount of resources as Clark County, and yet water is still flowing from that county into tributaries such as the Muddy River," Majewski pointed out. "That goes into the Colorado River. That will end up being drinking water."
In 2023, the Supreme Court narrowed the definition of "waters of the United States." It determined only wetlands physically connected to other federally-recognized waters qualify for protection.
Majewski noted while Nevada has its own water laws, federal regulation is needed to maintain a baseline for all states. This week, listening sessions about the proposal will be held for government agencies and Native American tribes.
The Trump administration has said it wants to reduce "red tape" for business and industry but conservationists fear loosening restrictions will cause more pollution in Nevada's wetlands and ephemeral streams. Majewski argued water should not be a partisan issue.
"It is important that all Nevadans, whatever kind of political side they are on, are able to understand these issues more," Majewski stressed. "Because water, it surpasses the administration that it's currently in."
Majewski added changing water protections could affect the quality of the Colorado River and would cause complications due to the amount of agencies managing the river.
"The Colorado River and its different tributaries that come in, it is such a patchwork of people that manage those water sources," Majewski explained.
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Montana officials have denied a petition asking the state to designate the Big Hole River as "impaired" by pollution.
Two conservation groups collected data over five years and found levels of nutrients in the Big Hole River exceeded thresholds, in some parts, by twofold or threefold, which could harm aquatic habitats, contaminate drinking water and affect fishing and other tourism business. The Montana Department of Environmental Quality said the petitioners used the wrong metrics.
Guy Alsentzer, executive director of the conservation group Upper Missouri Waterkeeper, said it is an example of politics "undermining good science."
"At minimum, we feel that the state owes us a written explanation, with some detail, about exactly why it believes it can deny a petition that has clearly satisfied the scientific basis for developing a pollution cleanup plan," Alsentzer explained.
The Montana Department of Environmental Quality argued the petition's data does not abide by a state law passed in 2021. The federal Environmental Protection Agency, however, officially disapproved of the law.
Alsentzer has requested the EPA weigh in, adding once high nutrient levels are proven, it is up to the Department of Environmental Quality to determine the causes.
"In the case of most Montana rivers, it's going to be a combination of human land use patterns," Alsentzer noted. "Sometimes it's subdivisions, sometimes it's septics, sometimes it's a municipality and sometimes it's farm fields or big cattle feeding lots."
Alsentzer stressed keeping waterways healthy is both "good common sense" and "good economics." According to the Bureau of Business and Economic Research, Beaverhead County's hunting and angling economy adds an estimated $74 million to area households annually and $167 million to businesses and organizations.
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A new report found 122 million Americans drink water with high levels of cancer-causing chemicals, frequently from runoff at livestock factory farms.
Researchers at the Environmental Working Group looked at water systems from 2019 to 2023. They found 6,000 water systems at some point had unsafe levels of "trihalomethane," which disinfects water contaminated with manure. The city of Baltimore and the Washington Suburban Sanitary Commission tested above the Environmental Protection Agency limit for the chemical a combined 255 times.
Anne Schechinger, agricultural economist and Midwest director of the Environmental Working Group, said the pollution affects everyone in the state.
"You can live miles and miles from ag, but still have ag pollutants in your drinking water," Schechinger pointed out. "You might see this report and think, 'Well I live in a city. I'm not anywhere near ag.' That doesn't mean that livestock manure is not impacting your drinking water."
Higher trihalomethane levels in drinking water can cause colon or bladder cancer, heart defects and stillbirths.
Schechinger argued President Donald Trump could reduce pollution by unfreezing funds helping farmers use healthier agricultural practices. Funds are currently frozen as Trump's Department of Government Efficiency tries to cut spending it views as wasteful.
"We can be putting more conservation practices on farm fields, like stream buffers or grass waterways, that really stop the flow of manure into water," Schechinger recommended. "That's something that was intended for this year, but the Trump administration has frozen the majority of agricultural conservation funding."
Schechinger added consumers can protect themselves by getting a water filter. Filters can help take chemical runoff out of drinking water.
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