Video: Water Pollution Control In Indian River County
This video highlights County efforts to clean drainage canals and stormwater runoff before the water reaches the Indian River Lagoon. Featured are tours and details by County staff of the various existing and planned projects.
Egret Marsh Stormwater Park and Wildlife Sanctuary
Egret Marsh removes dissolved nutrients from canal water before the water enters the Indian River Lagoon. Egret Marsh began operation in April 2010 and it cost $7.3 million to construct, including improvements. It removes dissolved nitrogen and phosphorus from eight million to ten million gallons of canal water each day. Egret Marsh’s treatment system includes a 4.6 acre algae farm that removes much of the water’s nitrogen and phosphorus load. Additional nutrient quantities are removed when the water flows through a large downstream polishing pond system and a created wetland before reentering the canal system. Egret Marsh is also a dedicated wildlife sanctuary and is home to many reptile, mammal, and bird species. Egret Marsh Presentation and Photos
PC Main Screening System
PC Main removes floating and suspended material from the Indian River Farms Water Control District’s Main Relief Canal, preventing the material from entering the Indian River Lagoon. PC Main began operation in August 2008 and it cost $5.3 million to construct. Using a series of self-cleaning bar screens, PC Main removes particles from the water that are as small as 1/16th inch in diameter, about the thickness of the wire in a paperclip. Along with huge quantities of trash and debris that harms the Lagoon’s wildlife, PC Main removes thousands of tons of aquatic plants from the canal water each year. If these plants reach the Lagoon they will die and create muck deposits on the Lagoon’s bottom, and release nitrogen and phosphorus that they assimilated into their tissue from the canal water. By preventing debris, trash, and freshwater aquatic plants from entering the Lagoon, PC Main provides significant benefit to the Lagoon’s ecosystem. PC Main also has two sedimentation basins in the canal bottom just upstream of the screening system. These basins can remove thousands of cubic yards of sediment and mucky material from the water each year. PC Main Presentation and Photos
Osprey Marsh Stormwater Park
Osprey Marsh removes dissolved nutrients from canal water and from the South County Water Treatment Plant’s reverse osmosis brine discharge, before the water flows into the Indian River Lagoon. Osprey Marsh began operation in the spring of 2015. Each day, it removes dissolved nitrogen and phosphorus from ten million gallons of canal water and from up to 1.5 million gallons of reverse osmosis brine discharge. Osprey Marsh’s treatment train includes a 4.6 acre algae farm that removes much of the water’s nitrogen and phosphorus. Additional nutrients are removed in a polishing pond and a created wetland. Osprey Marsh was designed by Public Works Stormwater Division but it is operated by The County Division of Utility Services due to the reverse osmosis brine input.
TO REPORT FLOODING AND OTHER STORMWATER CONCERNS
Please do not call this office - Please call the Road and Bridge Division at 772-770-5095