Lake Okeechobee DischargesSOUTH FLORIDA'S
WATER QUALITY CRISIS

OUR WATERS NEED LONG-TERM RELIEF

There’s an ongoing water-quality crisis in South Florida, plaguing us with a recurring nightmare, threatening our livelihoods, and killing our economies.

When water levels in Lake Okeechobee—at the heart of the state—get too high, water managers discharge massive amounts of polluted lake water to the east and west coasts through manmade canals. This wreaks havoc on the coastal estuaries, wiping out critical habitat, threatening human health, supercharging red tide, killing marine life, and crippling our economy for months.

The good news: there IS a solution through EVERGLADES RESTORATION, but we need YOUR help to get it done.

Damaging Discharges from Lake O' ongoing as of Feb. 17th!!

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Start at the source...

LAKE O LEVELS

In its natural state, Lake Okeechobee’s southern banks would overflow from summer rains, providing a critical flow of freshwater into America’s Everglades. 100 years ago, the lake was dammed, ditched, and diked, cutting off that flow south. Now, when summer rains fill the lake to levels that threaten the structural integrity of the dike, manmade canals to the east and west coasts become the primary relief outlets. This deprives the Everglades of beneficial freshwater and can result in damaging, high-volume discharges to the Caloosahatchee and St. Lucie rivers.

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What we fight to prevent...

HARMFUL COASTAL DISCHARGES

The ideal water level in Lake Okeechobee is between 12-15 feet. When it rises above 16 feet, water managers begin considering discharging at volumes that can damage the ecology of the coastal estuaries. High-volume coastal discharges for extended periods of time can create catastrophic salinity imbalances, destroy foundational seagrasses and oysters, transport toxic blue-green algae downstream, and exacerbate red tide blooms on the coast. In 2016 and 2018, that’s exactly what happened, decimating critical habitat, killing thousands of tons of marine life, and costing hundreds of millions of dollars to the economy of south Florida.

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Negative side effects...

RED TIDE + BLUE-GREEN ALGAE

Red tide and blue-green algae are Harmful Algal Blooms (HABs). They’re harmful because they both produce toxins that can kills animals and affect humans, and they’re harmful because they can create major negative economic impacts. Red tide forms offshore in the Gulf of Mexico and blooms in near-shore saltwater, and blue-green algae thrives in warm freshwater. But when high-volume discharges from Lake Okeechobee push toxic blue-green algae out into coastal red tide blooms, that’s when the perfect storm of water-quality conditions creates a statewide crisis. A recent study from UF showed that high-volume discharges from Lake O can intensify existing red tide blooms.

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Economic impacts...

BAD WATER COSTS BILLIONS

In South Florida, our way of life, our livelihoods, and our economy all depend on clean water and healthy coasts. Without clean water, our communities suffer. In fact, a 2024 study found that harmful water-quality events have MULTI-BILLION-DOLLAR impacts. The study found that in the event of a future major Harmful Algal Bloom event, southwest Florida would would lose over $460 million in commercial and recreational fishing, over 43,000 jobs, $5.2 billion in local economic output, $17.8 billion in property values, and $8.1 billion in the value of outdoor recreation.

WATER QUALITY RESOURCES

The Florida Department of Health Poison Hotline 800-222-1222 is available to answer any questions related to Red Tide health impacts or concerns. 

SIGHTS SET ON THE SOLUTION

The long-term solution to reduce the harmful discharges from Lake Okeechobee and stop compounding the issues that impact our coasts is Everglades restoration.

Through critical infrastructure projects like the EAA Reservoir, Everglades restoration is a science-based effort that will send more beneficial water south from the lake to the Everglades, thereby significantly reducing the harmful discharges to the coasts. The Everglades and Florida Bay desperately need the water the EAA Reservoir will convey.

Everglades restoration will provide relief, but it’s a massive, long-term project that will still take years more to complete. We need as many people as possible involved in this fight to ensure these solutions reach the finish line ASAP without delays or bureaucratic holdups. 

HOW YOU CAN HELP

Awareness

Spread the word! Help us generate more awareness around Florida’s water issues.

Education

Learn more about the problems and solutions so you can be empowered to take action.

Advocacy

There will come a time when your voice is CRITICAL, we’ll ask you to join us in making a difference. 

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What you can do TODAY to help...

DONATE TO SUPPORT THE CRITICAL WORK WE DO TO SAFEGUARD WATER QUALITY

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OUR PROGRAMS CREATING PROGRESS

Through our AwarenessEducation, and Advocacy programs, we engage our supporters to advance science-based solutions that solve Florida’s water mismanagement and safeguard our way of life for future generations.

AWARENESS

By generating more awareness around the issues impacting Florida’s water quality, we’re pulling the curtain back on the status quo, shining a light on special interest favoritism, and bringing more people into the fold to champion long-term solutions.

EDUCATION

Through speaking engagements, discussions with key stakeholders, relationships with science partners, and digital education campaigns, we empower people with the knowledge to be strong advocates for our waters.

ADVOCACY

In order to make progress in restoring and protecting our waters for generations to come, we must be bold advocates and we must rally together to take action during critical moments. Moving the needle on Everglades Restoration is a collective effort—it requires an army of empowered advocates.

HAVE QUESTIONS?

Click each FAQ to get answers.
Why does water get released form Lake Okeechobee to the Caloosahatchee and St. Lucie Rivers?

In its natural state, Lake Okeechobee’s southern banks would overflow from summer rains, providing a critical flow of freshwater into America’s Everglades. 100 years ago, the lake was dammed, ditched, and diked, cutting off that flow south. Now, when summer rains fill the lake to levels that threaten the structural integrity of the dike, manmade canals to the east and west coasts become the primary relief outlets. This deprives the Everglades of beneficial fresh water and can result in damaging, high-volume discharges to the Caloosahatchee and St. Lucie rivers.

We can’t have another crisis like we saw in 2016 and 2018. How do we stop the harmful discharges?

We need to restore the historical flow of Lake O water, sending it south to be stored, cleaned, and flowed to the Everglades and Florida Bay where it’s desperately needed.

Why can’t we send the water south now?

There are barriers to flow, such as roads and dams, a need for improved infrastructure, such as reservoirs and stormwater treatment areas, and political challenges to conquer. There is a plan (Everglades Restoration), but it requires completion of decades-long projects to store, clean, and send excess Lake O water south to the Everglades—and there are special interests that fight tooth and nail to delay progress and maintain the self-benefitting status quo.

How do we send the water south, then? What’s the solution?

The solution is called Everglades restoration, as approved by Congress in the Comprehensive Everglades Restoration Plan (CERP) in 2000. CERP is a framework for restoring, protecting and preserving the greater Everglades ecosystem (Orlando to the Florida Keys) through a suite of infrastructure projects that store, clean, and send excess Lake O water south through the Everglades. The plan is a 50-50 partnership between the State of Florida and the federal government.

What is the current status of Everglades restoration?

Everglades restoration progress is happening at record pace! Momentum has continued thanks to public engagement on water issues and the leadership of Governor DeSantis. The cornerstone project, the EAA Reservoir, just broke ground in February 2023 and will be the single most effective project for reducing harmful discharges and sending water south. Learn the latest on Everglades restoration progress in the 2023 South Florida Environmental Report (SFER) by the South Water Management District (SFWMD).

What is the current status of the new lake operations manual (LOSOM)? When will we see benefits?

LOSOM is expected to be implemented in the summer of 2024, however, it will take a full water year before we begin to see the benefits of the new plan.

What is blue - green algae (Microsystis)?

Microcystis is a type of toxic cyanobacteria, also known as blue-green algae, that lives in freshwater bodies. It is commonly found in Lake Okeechobee, and in the water discharged into the Caloosahatchee and St. Lucie Rivers. Blooms occur when the water is warm, stagnant, and rich in nutrients. Lake Okeechobee has high nutrient levels, so when the water warms up, it creates the perfect environment for blooms.

Is blue - green algae harmful? Does it affect human health?
Microcystis algae produces Microcystin—a potent liver toxin and possible human carcinogen.These toxins can be absorbed through ingestion, direct contact, or by breathing in contaminated air. Research has shown cyanobacteria particles aerosolize and travel miles from blooms.Blooms in Lake Okeechobee regularly reach concentrations that are over 100 times more toxic than what the EPA says is safe for human contact.
What is the current status of algae blooms in Lake O?

Visit DEP’s website https://floridadep.gov/algalbloom to see updated information on algae blooms on Lake O and other waterbodies in Florida.

What causes red tide?

When large concentrations of Florida red tide (Karenia Brevis) form blooms, it can discolor the water to appear red or brown, creating what is referred to as ‘red tide.’ Red tide is a marine dinoflagellate that feeds on nutrients like nitrogen, and can take advantage of excess nutrients in the water to multiply. Typically, blooms develop offshore, but can be brought inshore by currents and winds. When blooms are transported inshore, human-generated nutrient pollution can intensify them, like throwing fuel on a fire.

Why is red tide harmful?

Karenia Brevis produces neurotoxins that can sicken or kill fish, seabirds, turtles and marine mammals. Toxins can also affect humans, causing respiratory irritation if toxins are inhaled, and skin and/or eye irritation by contact. It can also cause shellfish poisoning if shellfish contaminated with toxins are consumed.

Do humans make red tide worse?

Once inshore, red tide blooms can feed on human-generated nutrient pollution to fuel their growth. These excess nutrients can come from nutrient-loaded Lake Okeechobee discharges, stormwater runoff, agricultural runoff, fertilizer entering the waterways, inadequate sewage/wastewater infrastructure, and other contributors.

How do Lake Okeechobee discharges affect red tide?

Scientists from Sanibel-Captiva Conservation Foundation and University of Florida’s Center for Coastal Solutions recently published a study confirming that Lake O discharges intensify coastal red tide blooms. These high-volume discharges inundate the Caloosahatchee estuary with nitrogen-loaded freshwater and toxic cyanobacteria (blue-green algae) that supercharges red tide blooms to unnatural intensity and duration

What’s being done to fix the red tide problem?

The SCCF/UF study serves as a valuable step forward by providing the scientific evidence needed to pursue opportunities to reduce coastal bloom intensity, duration, and, perhaps, frequency through strategic watershed nutrient management and Lake discharge operations. However, such strategies cannot be expected to eliminate blooms altogether, since offshore initiation and shoreward transport of blooms is well documented (e.g., Weisberg et al., 2019). Further investigation and modeling will be needed to quantify the extent to which policy and management interventions within the watershed can be expected to provide relief. (source: SCCF/UF study)

How can we get relief from red tide blooms?
We must send Lake O water south instead of to the coasts. High volume discharges are one of the most significant nutrient contributors to the estuary and are scientifically found to make red tide worse. Instead of discharging polluted lake water to the coasts, especially when red tide is present, Everglades restoration allows us to send the water south where it can be stored, cleaned, and conveyed south to the Everglades and Florida Bay where it’s desperately needed.
The second factor to sending water south is improved lake operations which will go into effect with the new lake operations manual, LOSOM, in Fall 2023.
What is Captains For Clean Water doing to fix these water problems?

Captains For Clean Water is primarily focused on expediting Everglades restoration in order to reduce harmful Lake O discharges and send the water south to the Everglades where it’s needed. With our powerful army of supporters, we advocate for state and federal funding to expedite Everglades restoration progress, advance effective water policy, and ensure policy makers keep water quality a priority by creating public pressure to hold them accountable

What can I do to help?

Get involved. There is no silver bullet solution to red tide or water quality issues which is why it’s critical to complete Everglades restoration as quickly as possible. That requires involvement from people like yourself who care about the state of our water, getting involved and speaking up when we have the opportunity to influence progress or water policy outcomes.

Sign up for our “Action Alerts” to be notified of action opportunities where your voice is needed – Email Alerts.

Donate to support our mission to continue fighting to restore and protect our waters.

What you can do TODAY to help...

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LOST SUMMER—A YEAR OF COASTAL CATASTROPHE

These water woes have devastated us before
Hurricane Ian
High volume discharges from Lake O devastate Floridas coasts
Special interests attempt to reconfigure Lake O
Chris Wittman observing a blue green algae bloom on Floridas coast
Florida plagued by toxic blue green algae blooms in 2018
Red tide: Dead Goliath grouper on beach
Red tide: Dead whale shark on Fort Myers Beach
Blue Green Red Tide
Tyler Tucker, left, and his father Toliver Tucker collect dead fish from nets into their shrimp boat while Jessica Toliver steers the trawler through the intracoastal waterway where Red Tide is decimating fish populations off Treasure Island, Fla., on Thursday, July 22, 2021. (Douglas R. Clifford /Tampa Bay Times via AP)

June 1, 2018 – High volume, toxic discharges began from Lake Okeechobee at volumes more than DOUBLE the harm threshold for the coastal estuaries.

Toxic blue-green algae was present on the Lake at this time. 

The 2018 Aftermath – The management of Lake O in 2018 had a devastating impact on Southwest Florida’s tourism economy and fishery – University of Florida reported $184 million in direct losses to the tourism industry in FL. Local businesses from boat captains to restauranteurs to hoteliers suffered, some having to close their doors for good. Irreversible environmental damage meant a slow recovery for the species impacted in 2018.

Sept. 2017 – Hurricane Irma rainfall increased Lake Okeechobee water levels by 6ft.

By October red tide was present off the West coast of Florida – a presence that persisted a lengthy 17 months.

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The Solution – Everglades Restoration is the science-based solution to never repeating our devastating history of 2018. Restoring the flow of water from Lake O south to the Everglades versus dumping East and West will restore balance to all 3 estuaries. Your involvement is critical. Use your voice and encourage others to get involved in the fight.

May 2018 – Florida received above average rainfall of approximately 12.77″ versus the normal seasonal rainfall of 2.64″ significantly contributing to the already increased Lake O water levels.

Red Tide Super Bloom – That summer, a red tide bloom intensified, killing thousands of tons of baitfish, game fish, sea turtles, manatees, dolphins, even a whale shark. Since this devastating collapse, scientists from SCCF and UF’s Center for Coastal Solutions published a study confirming that Lake O discharges intensify coastal red tide blooms leading to what has been referred to as a ‘super bloom’.

Sept. 2017 – Hurricane Irma rainfall increased Lake Okeechobee water levels by 6ft.

By October red tide was present off the West coast of Florida – a presence that persisted a lengthy 17 months.

May 2018 – Florida received above average rainfall of approximately 12.77″ versus the normal seasonal rainfall of 2.64″ significantly contributing to the already increased Lake O water levels.

June 1, 2018 – High volume, toxic discharges began from Lake Okeechobee at volumes more than DOUBLE the harm threshold for the coastal estuaries.

Toxic blue-green algae was present on the Lake at this time. 

Red Tide Super Bloom – That summer, a red tide bloom intensified, killing thousands of tons of baitfish, game fish, sea turtles, manatees, dolphins, even a whale shark. Since this devastating collapse, scientists from SCCF and UF’s Center for Coastal Solutions published a study confirming that Lake O discharges intensify coastal red tide blooms. These high-volume discharges inundate the Caloosahatchee estuary with nitrogen-loaded freshwater and toxic cyanobacteria (blue-green algae) supercharging red tide blooms to unnatural intensity and duration.

The 2018 Aftermath – The management of Lake O in 2018 had a devastating impact on Southwest Florida’s tourism economy and fishery – University of Florida reported $184 million in direct losses to the tourism industry in FL. Local businesses from boat captains to restauranteurs to hoteliers suffered, some having to close their doors for good. Irreversible environmental damage meant a slow recovery for the species impacted in 2018.

The Solution – Everglades Restoration is the science-based solution to never repeating our devastating history of 2018. Restoring the flow of water from Lake O south to the Everglades versus dumping East and West will restore balance to all 3 estuaries. Your involvement is critical. Use your voice and encourage others to get involved in the fight.