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Springs – Your Questions Answered »
April 2025Q: What is a spring?A: A spring occurs when groundwater that is under pressure flows through natural cracks in the aquifer and creates a natural opening in the ground. The pressure causes the water to flow from the aquifer to the earth’s surface. Our groundwater is the result of seasonal rainfall that soaks into the ground and into the aquifer. Springs can occur as an individual vent but more often as many…
Minimum Flows and Levels (MFLs) »
Florida law requires establishment of minimum flows and levels of water bodies to prevent significant harm associated with water withdrawals.Program overviewFlorida law (Chapter 373.042, Florida Statutes) requires the state water management…
Springs – Your Questions Answered »
March 2024Q:  What is a spring?A:  A spring occurs when groundwater that is under pressure flows through natural cracks in the aquifer and creates a natural opening in the ground. The pressure causes the water to flow from the aquifer to the earth’s surface. Our groundwater is the result of seasonal rainfall that soaks into the ground and into the aquifer. Springs can occur as an individual vent but more often as many…
Crystal River to Duke Energy Reclaimed Water Project »
This reclaimed water project reduces groundwater pumping and wastewater nutrient loading in the Crystal River/Kings Bay springshed. Project Overview The project provides highly treated wastewater, known as reclaimed water, from the City of Crystal River to the Duke Energy power plant in Citrus County. Infrastructure was built to transport all reclaimed water from the City of Crystal River’s wastewater sprayfield to the Duke Energy power generation complex, located west…
Minimum Flows and Minimum Water Levels Frequently Asked Questions »
What are minimum flows and minimum water levels (MFLs)?In short, an MFL sets a limit on how much water can be withdrawn from various water resources to prevent significant harm occurring to those resources or the ecology of the area.What does “significant harm” mean?The Florida legislature did not define the term ‘significant harm.’ However, the District has developed criteria for significant harm to various types of water resources. The…
Springs Coast Steering, Management and Technical Committees »
There are more than 200 documented springs throughout the District. However, most individual springs cluster around 16 groups of springs, five of which are classified as first-magnitude groups based on the amount of water they discharge. While recognizing the need to manage all springs, the District places a priority on the five first-magnitude spring groups: Rainbow, Crystal River/Kings Bay, Homosassa, Chassahowitzka, and Weeki Wachee. These spring groups, located in…
Lake Thonotosassa »
 Highlights
  • Largest natural lake in Hillsborough County with a surface area of greater than 800 acres
  • Popular for recreational use as it is one of the few natural lakes in the area with public access
  • Discharges into the Hillsborough River which is used for municipal water supply for the City of Tampa
ChallengesFour main challenges exist in the Lake Thonotosassa watershed:
  • Nutrient loadings from the watershed have caused extreme…
Springs Frequently Asked Questions »
What springs are located within our District? There are more than 200 springs within the District. There are five first-magnitude spring groups in the District. First-magnitude springs, which are the largest springs by volume of water discharged, release 64.6 million gallons per day or more. The five springs are: Rainbow River, Crystal River/Kings Bay, Homosassa River, Chassahowitzka River and Weeki Wachee River. Together, they discharge more than one…
Springs »
April 2023 Q:  What is a spring? A:  A spring occurs when groundwater that is under pressure flows through natural cracks in the aquifer and creates a natural opening in the ground. The pressure causes the water to flow from the aquifer to the earth’s surface. Our groundwater is the result of seasonal rainfall that soaks into the ground and into the aquifer. Springs can occur as an individual vent but more often as…
Springs »
Your Questions Answered  April 2022 Q:  What is a spring? A:  A spring occurs when groundwater that is under pressure flows through natural cracks in the aquifer and creates a natural opening in the ground. The pressure causes the water to flow from the aquifer to the earth’s surface. Our groundwater is the result of seasonal rainfall that soaks into the ground and into the aquifer. Springs can occur as an…
Rainbow Farms Project will prevent erosion, improve water quality »
The Southwest Florida Water Management District recently amended an agreement with the City of Safety Harbor to move forward on a project that will reduce erosion near the Rainbow Farms subdivision.Rainbow Farms is located within the Bishop Creek Watershed. The goal of this project is to stabilize Bishop Creek to prevent further erosion. In the past 25 years the creek has eroded beyond the established easement and is encroaching onto the adjoining residential properties.…
Springs »
Your Questions Answered  April 2020 April is Springs Protection Awareness Month, and the Southwest Florida Water Management District is committed to protecting the more than 200 springs within the District. To raise awareness about the importance of these natural treasures, Springs Scientist Dr. Madison Trowbridge answers some commonly asked questions about our springs. Q:  What is a spring? A:  A spring occurs when…
Crystal River/Kings Bay »
 Highlights
  • Tidally influenced Kings Bay is the headwater of Crystal River
  • Hydrologically unique springs system comprised of more than 30 springs
  • Designated an Outstanding Florida Water
  • Located in Citrus County
  • 364-square-mile watershed
  • Kings Bay forms the largest, natural warm-water refuge for the Florida Manatee in the United States.
ChallengesTwo main challenges exist in the Crystal River/Kings Bay watershed:…
Weeki Wachee Springs, Hernando County »
Weeki Wachee Springs has an extensive underwater cave system and is known for its world-famous mermaids. About the SpringsThe Weeki Wachee River is a first-magnitude spring system originating in Hernando County. The headspring is home to …
Springs »
Your Questions Answered April 2019 April is Springs Protection Awareness Month, and the Southwest Florida Water Management District is committed to protecting the more than 200 springs within the District. To raise awareness about the importance of these natural treasures, Chief Environmental Scientist Dr. Chris Anastasiou answers some commonly asked questions about our springs. Q:  What is a spring? A:…