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Performance of Ten Mile Canal Filter Marsh Project Anura Karuna-Muni, P.E., Lee County Roland Ottolini, P.E., Lee County Tim Denison, Johnson Engineering,

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Presentation on theme: "Performance of Ten Mile Canal Filter Marsh Project Anura Karuna-Muni, P.E., Lee County Roland Ottolini, P.E., Lee County Tim Denison, Johnson Engineering,"— Presentation transcript:

1 Performance of Ten Mile Canal Filter Marsh Project Anura Karuna-Muni, P.E., Lee County Roland Ottolini, P.E., Lee County Tim Denison, Johnson Engineering, Inc. Lee County Division of Natural Resources

2 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources Presentation Outline: Layout of the filter marsh Monitoring of water quality and flow Data analysis and trends, assuming the filter marsh as a blackbox Maintenance of the marsh Summary

3 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources

4 Ten Mile and Six Mile Watersheds (approximate area = 43,000 acres) Ten Mile Canal Watershed (Approx. 13 square miles)

5 Performance of Ten Mile Canal Filter Marsh Project Filter Marsh Cell Orientation and Operation North Settling Cell/ Filter Marsh North Filter Marsh South Settling Cell/ Filter Marsh South Filter Marsh Lee County Division of Natural Resources

6 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources

7 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources

8 Performance of Ten Mile Canal Filter Marsh Project Water Quality Monitoring Locations Lee County Division of Natural Resources

9 Performance of Ten Mile Canal Filter Marsh Project Water Level Monitoring Locations Lee County Division of Natural Resources

10 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources

11 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources

12 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources

13 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources Water Quality and Level Monitoring Equipments Avalanche® Multi-bottle, Multi-function Sampler

14 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources

15 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources

16 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources 2008 Total Load Reduction = 68% (1920 kg)

17 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources 2008 Total Load Reduction = 82% (78.9 kg)

18 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources Maintenance Activities 4/15/2008Aquatic Plant Removal7 cy mixed 4/15/2008Aquatic Plant Removal1 cy chara 5/15/2008Harvest Cell No. 48 cy native 8/6/2008Aquatic Plant Removal45 cy mixed 11/17/2008Aquatic Plant Removal40 cy mixed

19 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources

20 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources

21 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources 2008 Filter Marsh Performance Summary: Upper limit (considering the filter marsh as a blackbox) Total Nitrogen Removed 1920 kg Nitrogen Removal Efficiency 68% Total Phosphorus Removed 78.9 kg Phosphorus Removal Efficiency 82%

22 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources 2008 Filter Marsh Performance Summary: Upper limit (considering the filter marsh as a blackbox) Lower limit (considering the inflow to be equal to discharge – no losses) Total Nitrogen Removed 1920 kg 506 kg Nitrogen Removal Efficiency 68%36% Total Phosphorus Removed 78.9 kg 33 kg Phosphorus Removal Efficiency 82%65%

23 Performance of Ten Mile Canal Filter Marsh Project Lee County Division of Natural Resources Observations and Recommendations: The efficiency can be determined in different ways. This study focuses on efficiency based on load in the water column. Efficiency and load reduction depends on a number of factors such as loading rate, amount of discharge, residence time, maintenance, volume loss due to seepage, ET, leaks, etc. Focus on removing nutrient loads during the wet season Coordinate monitoring of water quality and flow Stay on top of maintenance schedule Develop a simple design that is easy to operate and maintain Make aware of factors influencing the efficiency

24 Web Site : Contact Information Questions & Comments


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