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The Southwest Florida Water Management District will be treating hydrilla on the Rainbow River July 10-13. Infestations of water lettuce along the river in Marion County will be treated.Treatment involves the application of the aquatic herbicide Aquathol Super K. Treatment areas will be posted with warning signs displaying treatment dates and applicable restrictions. River water should not be used for irrigation or domestic purposes for seven days following treatment.… Read more
The Southwest Florida Water Management District will be treating hydrilla on the Rainbow River Jan. 17-19. Infestations of hydrilla immediately upriver of KP Hole Park to the Withlacoochee River in Marion County will be treated.Treatment involves the application of the aquatic herbicide Aquathol Super K. Treatment areas will be posted with warning signs displaying treatment dates and applicable restrictions. River water should not be used for irrigation or domestic… Read more
The Southwest Florida Water Management District will be treating hydrilla in Marion County August 22-25. Infestations of hydrilla will be treated on the Rainbow River from County Road 484 to where the river meets the Withlacoochee River.Treatment involves the application of the aquatic herbicide Aquathol Super K. Treatment areas will be posted with warning signs displaying treatment dates and applicable restrictions. River water should not be used for irrigation or… Read more
Due to unfavorable weather conditions, the Southwest Florida Water Management District (District) has rescheduled the treating of the invasive aquatic plant hydrilla on the Rainbow River in Marion County to the week of Feb. 22.District workers will treat scattered infestations on the river from the Rainbow River State Park boundary downstream to the Withlacoochee River.The aquatic herbicide Aquathol Super K will be applied and informational signs will be posted in the… Read more
The Southwest Florida Water Management District's (District) Governing Board has approved a contract for the purchase of a significant portion of the eastern bank of the Rainbow River. The parcel proposed for acquisition consists of nearly 115 acres and includes nearly a half mile of river frontage. The contract also contains provisions to protect an additional 620 feet of shoreline associated with existing private landholdings.Rainbow Springs is the largest first magnitude… Read more
The Southwest Florida Water Management District will be treating infestations of hydrilla on the Rainbow River in Marion County Nov. 12-14. The section of the river to be treated is the upper portion of the river from the Blue Cove area to just upstream of KP Hole ParkTreatment involves the application of the aquatic herbicide Aquathol Super K. Treatment areas will be posted with warning signs displaying treatment dates and applicable restrictions. Water from the treated… Read more
The Southwest Florida Water Management District will be treating hydrilla in Marion County March 6-9. Infestations of hydrilla will be treated on the Rainbow River from the County Road 484 bridge to where the river meets the Withlacoochee River.Treatment involves the application of the aquatic herbicide Aquathol Super K. Treatment areas will be posted with warning signs displaying treatment dates and applicable water use restrictions. River water should not be used for… Read more
The Southwest Florida Water Management District will be treating hydrilla in Marion County Oct. 17-20. Infestations of hydrilla will be treated on the Rainbow River from the County Road 484 bridge to where the river meets the Withlacoochee River.Treatment involves the application of the aquatic herbicide Aquathol Super K. Treatment areas will be posted with warning signs displaying treatment dates and applicable water use restrictions restrictions. River water should not… Read more
The "Southwest Florida Water Management District(Southwest Florida Water Management District)":/ will be treating hydrilla on the Rainbow River during the week of Feb. 21–25.District workers will treat scattered infestations on the river from upstream of KP Hole Park to the Withlacoochee River.Workers will apply the aquatic herbicide Aquathol Super K and post warning signs in the treatment areas noting treatment dates and water use restrictions. Treated river water should… Read more
The "Southwest Florida Water Management District(Southwest Florida Water Management District)":http://watermatters.org will be treating hydrilla on the Rainbow River from the head spring to the Withlacoochee River during the week of April 19–23.Treatment involves the spot application of the aquatic herbicide Aquathol Super K to scattered infestations. Treatment areas will be posted with warning signs displaying treatment dates and applicable "water use restrictions(Aquatic… Read more
The "Southwest Florida Water Management District(Southwest Florida Water Management District)":/ will be treating hydrilla on the Rainbow River during the week of March 7–10.District workers will treat scattered infestations on the river from upstream of KP Hole Park to the CR 484 bridge.Workers will apply the aquatic herbicide Aquathol Super K and post warning signs in the treatment areas noting treatment dates and water use restrictions. Treated river water should not be… Read more
The "Southwest Florida Water Management District":http://www.swfwmd.state.fl.us/ (District) will be treating the invasive aquatic plant hydrilla on the Rainbow River in Marion County during the period of March 9-12. District workers will treat scattered infestations on the portion of the river upstream of the Rio-Vista area.Workers will apply the aquatic herbicide Aquathol Super K and post informational signs in the treated areas noting treatment dates and applicable water… Read more
The "Southwest Florida Water Management District":http://www.swfwmd.state.fl.us/ (District) will be treating the invasive aquatic plant hydrilla on the Rainbow River in Marion County during the period of November 2-5.District workers will treat scattered infestations on the lower portion of the river downstream of the CR 484 bridge.Workers will apply the aquatic herbicide Aquathol Super K and post informational signs in the treated areas noting treatment dates and applicable… Read more
The Southwest Florida Water Management District will be treating water lettuce on the Rainbow River Dec. 12Dec 15. Infestations of water lettuce along the river in Marion County will be treated.Treatment involves using the aquatic herbicide Reward. Treatment areas will be posted with warning signs displaying treatment dates and applicable restrictions. Restrictions on Reward include no livestock watering for one day, no irrigation of crops for five days and treated river… Read more
What is a spring? A spring is a natural opening in the ground where water flows directly from the aquifer to the earth’s surface. The source of this fresh water is from seasonal rainfall that soaks into the ground, which is referred to as groundwater. Springs form when groundwater is under pressure and flows up through an opening called a spring vent, supplying flow to a river or other water body. A spring can occur individually or as a group of many springs. The most… Read more
The Southwest Florida Water Management District will be treating hydrilla on the Rainbow River in Marion County during the week of March 4-7.District workers will treat scattered infestations on the river from upstream of K.P. Hole Park to the Withlacoochee River.Workers will apply the aquatic herbicide Aquathol Super K and post informational signs in the treatment areas noting treatment dates and applicable water use restrictions.There are no restrictions on the use of… Read more
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.… Read more
The Southwest Florida Water Management District will be treating infestations of water lettuce on the Rainbow River in Marion County Jan. 14-17. The treatment area is from the Rio Vista area to the Withlacoochee River.Treatment involves the spot application of the aquatic herbicide Reward to scattered infestations. Treatment areas will be posted with warning signs displaying treatment dates and applicable restrictions. Treated river water should not be used for drinking,… Read more
The Southwest Florida Water Management District will be treating water lettuce on the Rainbow River in Marion County Dec. 4-7. Water lettuce infestations will be treated from the headspring to the Withlacoochee River.Water lettuce will be spot treated with the aquatic herbicide Reward. Treatment areas will be posted with warning signs displaying treatment dates and applicable water use restrictions. Water use restrictions in areas treated with Reward include no livestock… Read more
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… Read more