News - Seminole.WaterAtlas.org

A majority of Florida waterways are polluted. But environmental enforcement is lacking

WaterAtlas.org — Mon, 10 Aug 2026 00:00:00 GMT

A majority of Florida waterways are failing water quality standards, even as the state’s pollution enforcement remains near historic lows, according to a new report.

The report was published by Public Employees for Environmental Responsibility, or PEER, and Waterkeepers Florida, a coalition that is part of the international Waterkeeper Alliance. It is based on 37 years of environmental enforcement data, plus data from the Florida Department of Environmental Protection’s latest statewide, comprehensive water quality analysis.

Data takeaways

Of more than 4,200 water bodies assessed by FDEP, just over 52% are not meeting water quality standards, according to the state’s comprehensive analysis released earlier this year. For another 15% of assessed water bodies, there isn’t enough data to determine whether or not standards are being met.

In Central Florida, some water bodies failing to meet water quality standards include Lake Jesup (impaired by nutrients), portions of Lake Apopka (impaired by nutrients, plus pesticides found in fish tissue) and parts of the Econlockhatchee River (impaired by e-coli and nutrients), according to FDEP.

Statewide, most water body impairments are driven by high concentrations of nutrients and fecal bacteria, as well as low levels of dissolved oxygen, according to FDEP.

PEER’s analysis of state enforcement data reveals that “a steady decline” in enforcement actions began once former Governor Rick Scott took office in 2011.

The report states that “the Scott administration favored development interests at the expense of environmental protections.”

Between 1988 and 1995, FDEP took action to enforce protective environmental laws in an average 1,048 cases per year. That number plummeted to 431 cases a year, on average, between 2011 and 2018, Scott’s last full year in office.

When Governor Ron DeSantis took over in 2019, he was more publicly supportive of protective environmental programs than Scott had been, according to the PEER report. In DeSantis’ first year in office, the number of environmental enforcement actions temporarily rose, from 371 actions taken in 2018 to 742 in 2020.

After 2020, though, FDEP enforcement actions declined again. They’ve since ticked back up slightly, rising from 579 actions taken in 2023 to 755 in 2025.

Still, “enforcement actions initiated under Governor DeSantis are still less than half of what they were in 2010,” according to the report.

Florida’s pollution protections ‘don’t go far enough’

Lisa Rinaman is the riverkeeper, or chief advocate, at St. Johns Riverkeeper, one of 15 member groups making up Waterkeepers Florida. Rinaman said the findings in the report co-published with PEER are a “significant concern.”

“It's alarming for a state like Florida, where everything depends on clean water, from an economic perspective,” Rinaman said. “Our tourism, our growth; just our quality of life, agriculture.”

Although state rules and protections enacted to reduce nutrient pollution in water bodies like the St. Johns River have worked “to some degree,” Rinaman said, they don’t go far enough — especially because enforcement is lacking.

“This [report] just demonstrates that, those protections that have been in place, they're too lax. They don't go far enough,” Rinaman said. “And then, if you're not enforcing it to ensure that what the model is telling you is what's happening in reality …. then it's really not as good as the paper it's written on.”

Looking forward

The report by PEER and Waterkeepers Florida finds “a growing number of Florida’s water bodies, including estuaries and lakes, fail to meet water quality standards.” However, “the quality of coastal waters and streams has improved somewhat.”

Another piece of good news, Rinaman said, is a provision in Florida’s farm bill, approved by lawmakers earlier this year, that will outlaw the land application of Class B biosolids by 2028. Those Class B biosolids are made up of sewage sludge that’s been treated to reduce (not eliminate) pathogens and toxic chemicals.

However, DeSantis vetoed another bill that would have created protective regulations for Class AA biosolids, which is sewage sludge that’s been treated to a higher level than Class B biosolids.

“That's just going to continue to add to our nutrient pollution problems that we're seeing throughout the state of Florida,” Rinaman said.

After this story published, FDEP shared a statement which reads in part: "The Department disagrees with PEER's 2025 Florida Enforcement Report as it leaves out important context, overly focuses on historical metrics and ignores the significant strides Florida has made in restoring and protecting Florida's waterways."

DOH-Seminole Issues Blue Green Algae Health Alert for Lake Howell

WaterAtlas.org — Mon, 10 Aug 2026 00:00:00 GMT

Sanford, Fla. — The Florida Department of Health in Seminole County (DOH-Seminole) has issued a health alert for the presence of harmful blue-green algae toxins in Lake Howell. The alert is in response to a water sample taken on August 5, 2026. The public should exercise caution in and around Lake Howell.
Residents and visitors are advised to take the following precautions:
• Do not drink, swim, wade, use personal watercrafts, or come into contact with waters where there is a visible bloom.
• Wash your skin and clothing with soap and water if you have any contact with algae, or discolored or water that smells unpleasant.
• Keep pets and livestock away from the area to avoid any contact with water. Waters where algae blooms are present are not safe for animals. Pets and livestock should use an alternative source of water when algae blooms are present.
• Do not cook or clean dishes with water contaminated by algae blooms. Boiling the water will not eliminate toxins.
• Eating fillets from healthy fish caught in freshwater lakes experiencing blooms is safe. Rinse fish fillets with tap or bottled water, throw out the guts, and cook fish thoroughly.
• Do not eat shellfish in waters with algae blooms.
The Florida Department of Environmental Protection (DEP) and partners collect algae samples from reported bloom locations. After samples are analyzed at their laboratory, the toxin results can be viewed on the Protecting Florida Together or on DEP’s Algal Bloom Dashboard.
What is Blue-Green Algae?
Blue-green algae are a type of bacteria that is common in Florida’s freshwater environments. A bloom occurs when rapid growth of algae leads to an accumulation of individual cells that discolor water and often produce floating mats that emit unpleasant odors.
Blue-green algae blooms can also appear as scum, foam, or paint on the surface of the water in various colors. To learn more about the appearance of algae blooms, visit Protecting Florida Together.
Some environmental factors that contribute to blue-green algae blooms are sunny days, warm water temperatures, still water conditions, and excess nutrients. Blooms can appear year-round but are more frequent in summer and fall. Many types of blue-green algae can produce toxins. Blue-green algae may not always be visible as a bloom, but it can still be present in the water.
Is Blue-Green Algae Harmful?
Blue-green algae can produce toxins, which can be harmful to human and pets as well as ecosystems, including fish and other aquatic animals. Sensitive individuals (e.g., children, the elderly and those who are immunocompromised) may still be at risk even at low concentrations and should avoid any exposure.
For additional information on potential health effects of algae blooms, visit the Florida Department of Health's harmful algae blooms webpage.
Where Can I Find Current Water Status Information?
Current information about Florida’s water quality status and public health notifications for harmful algae blooms and beach conditions is available at Protecting Florida Together.
You can subscribe to receive notifications when water quality changes in your area. Where Can I Report Issues Related to Algae Blooms?
• Algae Blooms: DEP monitors algae blooms and collects samples for analysis. Blooms can be reported to DEP online or by calling toll-free at 1-855-305-3903.
• Human Health: Report symptoms from exposure to a harmful algae bloom or any aquatic toxin to the Florida Poison Information Center by calling 800-222-1222 to speak to a poison specialist.
• Animal Health: Contact your veterinarian if you believe your pet has become ill after consuming or having contact with blue-green algae contaminated water.
•
Fish Kills: Dead, diseased, or abnormally behaving fish or wildlife should be reported to the Florida Fish and Wildlife Conservation Commission online or at 800-636-0511.
If you have other health questions or concerns about blue-green algae, please call DOH-Seminole Environmental Public Health Program at 407-665-3604 or visit Seminole.FloridaHealth.gov.
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About the Florida Department of Health The Department, nationally accredited by the Public Health Accreditation Board, works to protect, promote, and improve the health of all people in Florida through integrated state, county, and community efforts. Follow us on X at @HealthyFla and on Facebook. For more information about the Florida Department of Health, visit FloridaHealth.gov.

FAU awarded US EPA grant for AI-driven technology to combat harmful algal blooms

WaterAtlas.org — Mon, 10 Aug 2026 00:00:00 GMT

Harmful algal blooms (HABs) have become an increasingly common threat to lakes, rivers and coastal waters across the United States, endangering drinking water supplies, aquatic ecosystems, public health and local economies. Now, researchers at Florida Atlantic University are developing an innovative technology that could help stop these blooms before they spread.

FAU’s College of Engineering and Computer Science has received an $800,475 grant from the Gulf of America Division of the U.S. Environmental Protection Agency to develop an artificial intelligence-guided system that removes excess phosphorus – one of the primary drivers of HABs – from freshwater systems. The three-year project began July 1.

The project, titled “AI-Guided Use of 3D-Printed Adsorbents for Phosphate Removal,” is led by principal investigator Masoud Jahandar Lashaki, Ph.D., an associate professor in FAU’s Department of Civil, Environmental and Geomatics Engineering. Co-principal investigators are Yalan Liu, Ph.D., an assistant professor, and Mohammed Abdellatef, Ph.D., an assistant professor both from FAU’s Department of Civil, Environmental and Geomatics Engineering. Huichun (Judy) Zhang, Ph.D., of Case Western Reserve University, will serve as the project’s sub-awardee.

Excess phosphorus entering lakes and waterways from agricultural runoff, wastewater, failing septic systems and urban stormwater fuels explosive algal growth. These HABs can cloud waterways, deplete oxygen needed by fish and other aquatic life, produce toxins dangerous to people, pets and wildlife, and cause significant economic losses for communities that depend on clean water for tourism, recreation and fishing.

Lake Okeechobee, one of Florida’s most important freshwater resources, has experienced recurring HABs fueled by elevated nutrient levels. Because the lake sits at the headwaters of the Gulf of America watershed, phosphorus flowing downstream affects numerous rivers, estuaries and coastal ecosystems, making nutrient reduction in the lake critical to improving water quality throughout the region.

Current methods for removing phosphorus often are costly, produce waste or present environmental challenges when used on a large scale. Some chemical treatments generate large amounts of sludge, while biological approaches require tightly controlled conditions that are difficult to maintain outside treatment facilities. For example, although lanthanum-based materials are highly effective at capturing phosphorus, they typically are applied as fine powders that settle into lake sediments, where they can slowly release lanthanum back into the environment. The FAU-led team aims to overcome these limitations by combining advanced manufacturing with AI.

Researchers will develop durable, retrievable 3D-printed structures made from sargassum, a naturally abundant seaweed, which are modified with lanthanum to capture phosphorus from both the water column and lake sediments. Unlike conventional powdered materials, the 3D-printed structures can be deployed, retrieved, regenerated and reused, significantly reducing waste and minimizing the potential for lanthanum to enter the environment.

“This award provides an exciting opportunity to transform how we manage one of the most persistent causes of harmful algal blooms,” said Lashaki. “By combining sustainable 3D-printed materials with the power of AI, we can develop a smarter, more effective and environmentally responsible solution for removing phosphorus from our waterways. This funding allows us to accelerate the development and field testing of this technology while creating a model that can ultimately benefit freshwater ecosystems far beyond Florida.”

AI and machine learning will play a central role throughout the project. Researchers will use AI to rapidly identify the most effective adsorbent formulations, determine the optimal locations for deploying the structures and predict where phosphorus removal will have the greatest impact on preventing HABs. By integrating environmental monitoring data with information on land use, weather patterns, fertilizer applications, livestock operations and septic systems, the technology will help guide more precise nutrient management strategies.

The project also will demonstrate the technology in Lake Okeechobee under real-world conditions. Researchers will monitor improvements in water quality, water clarity and reductions in HABs using field sampling, publicly available environmental data and unmanned aerial vehicles. The resulting dataset will be shared through the U.S. EPA’s Water Quality Exchange to help other communities adopt similar approaches.

Beyond improving water quality in Lake Okeechobee, the technology is designed to be scalable and transferable to lakes, reservoirs and watersheds throughout the U.S. and around the world facing similar nutrient pollution challenges. The project is expected to reduce phosphorus levels in Lake Okeechobee, improve water quality and clarity, decrease the frequency and severity of HABs, reduce downstream nutrient pollution throughout the Gulf of America watershed, and demonstrate a reusable technology that can be adapted for watersheds worldwide.

“This award exemplifies the innovative, interdisciplinary research taking place in our college to address some of society’s most pressing environmental challenges,” said Stella Batalama, Ph.D., dean of FAU’s College of Engineering and Computer Science. “Professor Lashaki and his collaborators are developing a solution that combines advanced manufacturing, AI and environmental engineering to protect one of Florida’s most important natural resources. The impact of this work extends well beyond our state, offering a scalable approach that has the potential to improve water quality and protect ecosystems in communities around the globe.”

District seeks public input on updated Middle St. Johns River Basin Plan

WaterAtlas.org — Mon, 10 Aug 2026 00:00:00 GMT

The St. Johns River Water Management District has opened the public comment period for the draft 2026 Middle St. Johns River Basin Plan.

The draft plan updates priorities and projects to improve water quality, support ongoing restoration efforts and guide water resource management across the basin. Public input is an important part of the planning process and will help ensure the final plan reflects community needs, local knowledge and regional priorities. The District held a public meeting on July 16 to provide an overview of the draft plan and answer questions from attendees.

The draft plan and an online public comment form are available on the District’s website at sjrwmd.com/documents/plans/#basin.

Public comments will be accepted through Aug. 13, and feedback received during this period will help inform revisions before the plan is finalized.

Residents, community partners and interested parties are encouraged to review the draft and share their input.

For more information about the District’s efforts in the Middle St. Johns River Basin, visit www.sjrwmd.com/waterways/st-johns-river/middle.

B-roll and high-resolution images of the Middle St. Johns River Basin are available in the District’s media library.

Nearly 3 feet of rainfall deficit remains as drought recovery continues

WaterAtlas.org — Mon, 10 Aug 2026 00:00:00 GMT

While recent rainfall has brought welcome relief to portions of northeast and central Florida, the St. Johns River Water Management District (District) is reminding residents, businesses and large water users that drought recovery will take time.

Although many areas have received frequent rainfall in recent weeks, the District remains nearly 3 feet below its normal rainfall totals. It will take sustained, above-average rainfall over an extended period to replenish groundwater supplies, restore river flows and recover from months of accumulated rainfall deficits.

Recent rainfall has helped improve conditions in some areas, but summer conditions also influence how much water reaches the aquifer. In July, an average of 5.17 inches of water is lost through the natural processes of evaporation and plant use. With 6.84 inches of rainfall during the month, only a small amount of that rainfall remains available to help recharge groundwater supplies. Above-average rainfall over an extended period is needed for water resources to fully recover.

The District’s Phase III Extreme Water Shortage declaration remains in effect throughout the affected areas. The declaration was issued in response to prolonged drought conditions, declining groundwater levels and reduced surface water flows.

Mandatory restrictions remain in place, including:

Residential and commercial properties are limited to one day per week of landscape irrigation.
Landscape irrigation is prohibited between 8 a.m. and 6 p.m. daily.
Commercial and industrial users must suspend certain non-essential water uses.
Golf course fairway irrigation is limited to one day per week.
Aesthetic water use, such as decorative fountains, is prohibited.
Street and pressure washing activities face additional restrictions.
Irrigation restrictions for new plantings, including sod, have been tightened.

Outdoor irrigation continues to represent one of the greatest demands on potable water supplies. Residents are encouraged to verify that irrigation timers are set correctly to ensure that irrigation occurs only on their designated watering day and only during allowable hours. Irrigation systems should also be checked for leaks, and sprinklers should only water landscaped areas, not streets, sidewalks or driveways.

District staff continue to monitor rainfall totals, groundwater levels, river flows and other drought indicators to evaluate recovery and determine when water shortage restrictions can be modified or lifted.

To view the complete water shortage order, including detailed requirements for each water use category and water conservation tips, visit sjrwmd.com/wateringrestrictions.

Residents may occasionally see irrigation systems operating in public spaces such as parks, medians and common areas during the water shortage. In many cases, these systems use reclaimed water, which is a highly treated recycled water source that helps reduce demand on potable groundwater supplies. While conservation remains important across all water sources, some reclaimed water systems must continue operating to maintain system function or manage storage capacity.

To learn more about reclaimed water and its beneficial uses, visit https://floridadep.gov/water/domestic-wastewater/content/floridas-reuse-program.

Blue School Grants bring hands-on science to local classrooms

WaterAtlas.org — Mon, 10 Aug 2026 00:00:00 GMT

Students across the St. Johns River Water Management District (District) will have new opportunities to explore Florida’s waterways, conduct scientific research and connect with the environment through the Blue School Grant program. The District is offering up to $60,000 in funding for the 2026-2027 school year to support hands-on learning in K-12 public and charter schools throughout the District, helping teachers bring water-focused science lessons beyond the textbook.

Individual awards of up to $3,000 per teacher or school are available to fund water-focused STEAM curriculum or projects such as water quality testing, aquaponics, conservation gardens and watershed studies. The program helps students connect classroom learning to real world environmental concepts, while inspiring them to explore and protect Florida’s water resources.

“Teachers have incredible ideas for bringing science to life, and Blue School Grants help turn those ideas into meaningful learning experiences,” said Ali Pressel, education and outreach coordinator for the District. “The best science lessons happen when students can ask questions, explore and make discoveries for themselves. This funding helps make those experiences possible.”

Applications for the 2026-2027 Blue School Grant cycle open Aug. 1 and close at 11:59 p.m. on Sept. 15. Teachers and schools interested in bringing hands-on water science to their students are encouraged to apply. For a full list of application requirements, instructions and key dates, visit www.sjrwmd.com/education/blue-school.

Since 2016, the Blue School Grant program has funded 141 projects at more than 135 schools, supporting more than 22,000 students. These authentic learning experiences give students the opportunity to apply science skills while increasing their knowledge of how their actions impact natural systems.

High-resolution photos and B-roll footage of students participating in Blue School Grant projects are available through the District’s media library.

DOH-Seminole Issues Blue Green Algae Health Alert for Lake Jesup and Lake Howell 7/24/2026

WaterAtlas.org — Fri, 24 Jul 2026 00:00:00 GMT

Sanford, Fla. — The Florida Department of Health in Seminole County (DOH-Seminole) has issued a health alert for the presence of harmful blue-green algae toxins in Lake Jesup and Lake Howell. The alert is in response to water samples
taken on July 21, 2026. The public should exercise caution in and around Lake Jesup and Lake Howell.

Residents and visitors are advised to take the following precautions:

Do not drink, swim, wade, use personal watercrafts, or come into contact with waters where there is a visible bloom.
Wash your skin and clothing with soap and water if you have any contact with algae, or discolored or water that smells unpleasant.
Keep pets and livestock away from the area to avoid any contact with water. Waters where algae blooms are present are not safe for animals. Pets and livestock should use an alternative source of water when algae blooms are present.
Do not cook or clean dishes with water contaminated by algae blooms. Boiling the water will not eliminate toxins.

Eating fillets from healthy fish caught in freshwater lakes experiencing blooms is safe. Rinse fish fillets with tap or bottled water, throw out the guts, and cook fish thoroughly.
Do not eat shellfish in waters with algae blooms.

The Florida Department of Environmental Protection (DEP) and partners collect algae samples from reported bloom locations. After samples are analyzed at their laboratory, the toxin results can be viewed on the Protecting Florida Together or on DEP’s Algal Bloom Dashboard.

What is Blue-Green Algae?

Blue-green algae are a type of bacteria that is common in Florida’s freshwater environments. A bloom occurs when rapid growth of algae leads to an accumulation of individual cells that discolor water and often produce floating mats that emit unpleasant odors.

Blue-green algae blooms can also appear as scum, foam, or paint on the surface of the water in various colors. To learn more about the appearance of algae blooms, visit Protecting Florida Together.

Some environmental factors that contribute to blue-green algae blooms are sunny days, warm water temperatures, still water conditions, and excess nutrients. Blooms can appear year-round but are more frequent in summer and fall. Many types of blue-green algae can produce toxins. Blue-green algae may not always be visible as a bloom, but it can still be present in the water.

Is Blue-Green Algae Harmful?

Blue-green algae can produce toxins, which can be harmful to human and pets as well as ecosystems, including fish and other aquatic animals. Sensitive individuals (e.g., children, the elderly and those who are immunocompromised) may still be at risk even at low concentrations and should avoid any exposure.

For additional information on potential health effects of algae blooms, visit the Florida Department of Health's harmful algae blooms webpage.

Where Can I Find Current Water Status Information?

Current information about Florida’s water quality status and public health notifications for harmful algae blooms and beach conditions is available at Protecting Florida Together.

You can subscribe to receive notifications when water quality changes in your area.

Where Can I Report Issues Related to Algae Blooms?

Algae Blooms: DEP monitors algae blooms and collects samples for analysis. Blooms can be reported to DEP online or by calling toll-free at 1-855-305-3903.
Human Health: Report symptoms from exposure to a harmful algae bloom or any aquatic toxin to the Florida Poison Information Center by calling 800-222-1222 to speak to a poison specialist.
Animal Health: Contact your veterinarian if you believe your pet has become ill after consuming or having contact with blue-green algae contaminated water.
Fish Kills: Dead, diseased, or abnormally behaving fish or wildlife should be reported to the Florida Fish and Wildlife Conservation Commission online or at 800-636-0511.

If you have other health questions or concerns about blue-green algae, please call DOH-Seminole Environmental Public Health Program at 407-665-3604 or visit Seminole.FloridaHealth.gov.

DOH-Seminole Issues Blue Green Algae Health Alert for Lake Jesup and Lake Howell 7/24/2026

WaterAtlas.org — Fri, 24 Jul 2026 00:00:00 GMT

Residents and visitors are advised to take the following precautions:

Do not drink, swim, wade, use personal watercrafts, or come into contact with waters where there is a visible bloom.
Wash your skin and clothing with soap and water if you have any contact with algae, or discolored or water that smells unpleasant.
Keep pets and livestock away from the area to avoid any contact with water. Waters where algae blooms are present are not safe for animals. Pets and livestock should use an alternative source of water when algae blooms are present.
Do not cook or clean dishes with water contaminated by algae blooms. Boiling the water will not eliminate toxins.

Eating fillets from healthy fish caught in freshwater lakes experiencing blooms is safe. Rinse fish fillets with tap or bottled water, throw out the guts, and cook fish thoroughly.
Do not eat shellfish in waters with algae blooms.

What is Blue-Green Algae?

Blue-green algae blooms can also appear as scum, foam, or paint on the surface of the water in various colors. To learn more about the appearance of algae blooms, visit Protecting Florida Together.

Is Blue-Green Algae Harmful?

For additional information on potential health effects of algae blooms, visit the Florida Department of Health's harmful algae blooms webpage.

Where Can I Find Current Water Status Information?

Current information about Florida’s water quality status and public health notifications for harmful algae blooms and beach conditions is available at Protecting Florida Together.

You can subscribe to receive notifications when water quality changes in your area.

Where Can I Report Issues Related to Algae Blooms?

Algae Blooms: DEP monitors algae blooms and collects samples for analysis. Blooms can be reported to DEP online or by calling toll-free at 1-855-305-3903.
Human Health: Report symptoms from exposure to a harmful algae bloom or any aquatic toxin to the Florida Poison Information Center by calling 800-222-1222 to speak to a poison specialist.
Animal Health: Contact your veterinarian if you believe your pet has become ill after consuming or having contact with blue-green algae contaminated water.
Fish Kills: Dead, diseased, or abnormally behaving fish or wildlife should be reported to the Florida Fish and Wildlife Conservation Commission online or at 800-636-0511.

If you have other health questions or concerns about blue-green algae, please call DOH-Seminole Environmental Public Health Program at 407-665-3604 or visit Seminole.FloridaHealth.gov.