Right to Know

Join the Right to Know movement and help support the Florida Safe Waterways Act by writing or calling your legislators and expressing your support.

Act Now

An Evening with Calusa Waterkeeper

Enjoy Drinks & Dialogue and a Documentary with Calusa Waterkeeper on March 2, 2022 at the Collaboratory in Fort Myers.

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Water Quality Status

Finding information about current water quality conditions can be confusing. Visit our dashboard for links to some of the key monitoring sites.

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Fighting for Drinkable, Fishable, Swimmable Water

Since 1995

Calusa Waterkeeper is a non-profit organization dedicated to the protection of the Caloosahatchee River & Estuary in Southwest Florida. This includes Lake Okeechobee & Estero Bay, plus the near-shore waterways of Lee County. We strive to achieve this mission through education and promotion of responsible use and enjoyment by all people.

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Thank you for all that you’re doing to improve our water quality and to educate us on changes we ourselves can make to help.

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Vicky C.
Cape Coral

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I have come to value the work of the Calusa Waterkeeper and its important voice in our community advocating for cleaner water. Keep up with the good work!

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Stephen B.
Clewiston

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We appreciate all that you do for our community and water quality. Great Job! Thank you, The Jensens.

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Jensen’s Marina
Captiva

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Thank you Calusa Waterkeeper and John Cassani for all you do to educate the public about the water quality crisis we are facing in SWFL.

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Denny S.
Fort Myers

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Thanks to CWK for relentlessly using science and public outreach to fight for clean water in SW Florida! We all benefit.

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Gerri R.
Fort Myers

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I have learned so much as a volunteer Ranger with Calusa Waterkeeper. Excited to continue!

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Mark D.
North Fort Myers

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Happy to renew our membership and keep you on the front lines. Thank you for all you do.

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Scott & Christine M.
Cape Coral

Explore the Issues

Waterways around the world are under attack by pollution and mismanagement. Southwest Florida is no different.

Calusa Waterkeeper is focused on several local action items as well as regional and national issues affecting our water policy and quality of lives.

We think you’ll agree, these are causes worth fighting for.

Learn the Issues

Recent News

‘Look at the Water for Evidence’: Data Proves Florida Pollution Prevention not Working

Jan 5, 2022

Available water sampling data proves – for the first time – that Florida’s flagship program to reduce water pollution isn’t working. And that pollution is contaminating waterways and sparking toxic algal blooms in the St. Lucie and Caloosahatchee rivers.

Words from the Waterkeeper Episode 31

Dec 29, 2021

For the last Words from the Waterkeeper for 2021, Calusa Waterkeeper John Cassani invites friends Dr. Win Everham, an ecology professor at Florida Gulf Coast University, and board president of Calusa Waterkeeper Jim Watkins. They cover water quality in the area,...

What Lies Beneath? Study Aims to Learn What’s in Lake O’s Sediment

Dec 15, 2021

A study is underway to find out what’s below the surface of Lake Okeechobee. Think of our water quality and the lake as a puzzle. There are many different pieces that contribute to the big picture. Understanding all those pieces gets us closer to cleaner water.