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Tennessee Wetlands

The Importance of Tennessee's Wetlands

Wetlands play a critical role in maintaining a healthy and robust way-of-life for all Tennesseans. Among their many benefits, protected wetlands:

Reduce the devastating impacts of flooding
Recharge aquifers in West Tennessee, providing drinking water for thousands of residents
Filter pollution from our beloved rivers and streams
Provide healthy habitat for Tennessee’s globally unique biodiversity
Ensure beautiful outdoor spaces for recreation and enjoyment

Having already lost up to 60% of our state’s wetlands, we cannot afford to lose any more of these wonderful and productive ecosystems.

What's going on?

Harpeth Conservancy is working with communities and partners across the state to secure statewide protections for wetlands and improve the regulatory/permitting process. Right now, our team is gearing up for the 2025 session of the Tennessee State Legislature, which begins in January 2025.

Interested in learning more? Join us on January 7 for our “Legislative Session 101 Webinar” or email Marie at mariecampbell@harpethriver.org.

Keep reading for a timeline of what’s going on with Tennessee’s wetlands!

News Articles (2023-Present)

January 31, 2024 - Tennessee Lookout

By Anita Wadhwani, Tennessee Lookout

“State lawmakers are considering a rollback of protections for nearly half a million acres of wetlands in Tennessee, a proposal that is raising concerns over its potential to worsen flooding, deplete and degrade drinking water…”

February 8, 2024 - WPLN News

By WPLN Staff, WPLN News

“If the bill passes, experts say a small number of people will make short-term profits while causing long-lasting harm to communities and ecosystems. ‘The legislature is in this position, when this bill is in front of them…’

February 28, 2024 - Tennessee Lookout

By Tennessee Lookout Staff

“Developers linked to a building boom near the new Ford plant in Tennessee are advocating for less stringent wetland rules, potentially impacting the local ecosystem and water quality…”

February 28, 2024 - Tennessee Lookout (Connecting the Dots)


By Tennessee Lookout Staff

“An analysis of Tennessee’s home building industry reveals a concerted effort to weaken regulations on wetland construction, drawing connections between key industry players and proposed deregulations…”

March 7, 2024 - NewsChannel5

By NewsChannel5 Staff

“A proposed bill in Tennessee could remove legal protections from thousands of acres of wetlands, drawing criticism from environmentalists and residents who worry about increased flooding and loss of biodiversity…”

March 7, 2024 - Tennessee Lookout

By Tennessee Lookout Staff

“The Tennessee Senate decided to defer a developer-backed bill that would have ended protections for thousands of acres of wetlands, putting the measure on hold for further study…”

March 8, 2024 - WKMS

By WKMS News Staff, WKMS

“A controversial bill to roll back protections on more than 430,000 acres of wetlands in Tennessee has been effectively defeated, with a senate committee voting Wednesday to send the measure to a legislative study session over the summer…”

March 21, 2024 - Tennessee Lookout

By Anita Wadhwani, Tennessee Lookout

“A controversial measure to strip Tennessee’s wetlands of protections cleared another legislative hurdle Tuesday as the state House Agriculture and Natural Resources Committee advanced the bill sponsored by Rep. Kevin Vaughan…”

September 23, 2024 - Tennessee Lookout

By Tennessee Lookout Staff

“Tennessee lawmakers are revisiting a proposal to lift protections for thousands of acres of wetlands, sparking renewed debate on the impact on flood prevention and water quality…”

Media Resources

Press Releases
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Press Material
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Wetlands play a vital role in maintaining ecological balance and supporting biodiversity, and Tennessee is no exception to the significance of these precious ecosystems. “Wetlands are among the most productive ecosystems in the world, comparable to rain forests and coral reefs. An immense variety of species of microbes, plants, insects, amphibians, reptiles, birds, fish and mammals can be part of a wetland ecosystem.”1Wetlands, often regarded as nature’s kidneys, provide essential ecosystem services that contribute to the health of our environment. “Wetlands provide values that no other ecosystem can. These include natural water quality improvement, flood protection, shoreline erosion control, opportunities for recreation and aesthetic appreciation and natural products for our use at no cost. Protecting wetlands can protect our safety and welfare.”2
Duck River Bottoms, Duck River Unit, Tennessee National Wildlife Refuge, Tennessee
Photo by: Tim Lumley
CC Usage
Wetlands act as crucial buffers against floods and storm surges. A one-acre wetland can typically store about one million gallons of water, so when developers and industry destroy wetlands, communities lose flood protection.4 Constant removal of these natural buffers, leaves communities vulnerable to flooding and other environmental disasters, many of which Middle Tennessee has been a firsthand witness to over the last decade.

Wetlands also remove pollutants like PFAS, microplastics, heavy metals, and bacteria. These valuable ecosystems essentially act as natural filters, trapping and purifying water by removing pollutants and excess nutrients. In Tennessee, where various waterways crisscross the landscape, wetlands play a crucial role in maintaining water quality and preventing downstream contamination of rivers and aquifers.

Across the state, approximately 66% of Tennesseans get drinking water from a public utility that uses surface water (rivers and lakes) as a source; 26% of people get there drinking water from a public utility that uses groundwater (aquifers); and another 8% of people have private wells.7 Keeping wetlands, our natural filters, in place is crucial for maintaining our clean water supply. Wetlands contribute to the availability of clean water, a resource essential for both human consumption and agriculture.

The destruction of wetlands could disrupt the natural flow of water, negatively impacting fish populations and, would ultimately lead to the loss of biodiversity disrupting the delicate balance of ecosystems, impacting the overall health of Tennessee’s environment.

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From an ecological standpoint, the interconnectedness of wetlands with rivers and aquifers is inseparable. With some of the most biodiverse waterways in the world being found right here in Tennessee, it is vitally important to highlight the interdependence of other water bodies upon wetlands to understand why we must work to maintain a delicate balance within the overall ecosystem. In Tennessee, wetland forests are not just an environmental asset, but they impact our economy as well. Valued at $7.8 Billion, our wetland forests not only provide billions in protection from extreme events and water flow regulation, but also billions in water supply, waste treatment, food, tourism, and recreation–just to name a few services we receive from this ecosystem.9

In conclusion, the importance of wetlands in Tennessee cannot be emphasized enough. These ecosystems are integral to maintaining water quality, supporting biodiversity, and providing essential ecosystem services. Keep an eye on legislation such as HB1054/SB0631, which could pose a significant threat to the future of wetlands and the rivers they support across Tennessee. Lawmakers and the public must recognize the value of wetlands and work together towards policies that prioritize their conservation, ensuring a sustainable and healthy future for Tennessee’s environment and ALL of its residents.

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Join us to learn the basics about the Tennessee legislature and get a preview of upcoming bills to follow related to our mission – protecting clean water and rivers in Tennessee!

For more information on wetlands, we've listed our sources below:

1. Environmental Protection Agency. (n.d.). Why are Wetlands Important?. EPA

2. Id.

4. EPA, Wetlands: Protecting Life and Property from Flooding, 2006 at https://www.epa.gov/sites/default/files/2016-02/documents/flooding.pdf

6. Water quality rules, reports & publications. Water Quality Rules, Reports & Publications. https://www.tn.gov/environment/program-areas/wr-water-resources/water-quality/water-quality-reports—publications.html

8. U.S. Department of the Interior. (n.d.). Why are wetlands important?. National Parks Service. https://www.nps.gov/subjects/wetlands/why.htm

9. The Dogwood Alliance. (n.d.). Tennessee State Fact Sheet https://www.dogwoodalliance.org/esr/Tennessee-State-Fact-Sheet.pdf