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Comprehensive Study of Fall Creek Pond: Water Quality, Sedimentation, and Trophic States

This study, conducted by Esau Casetta, Austin Denzine, and Brett Lewallen, explores the health of Fall Creek Pond over the last five years. The researchers focused on sedimentation issues, water quality, and trophic states, employing maps and calculations to assess changes. Key components include the assessment of flushing rates, which indicate water turnover, and the classification of the pond’s trophic state into oligotrophic, mesotrophic, or eutrophic categories. The findings aim to highlight the importance of monitoring natural water bodies for environmental conservation and resource management.

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Comprehensive Study of Fall Creek Pond: Water Quality, Sedimentation, and Trophic States

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Presentation Transcript

  1. 2011 – 2012 Fall Creek Pond Study By: Esau Casetta, Austin Denzine, and Brett Lewallen

  2. Purposes and Ideas Behind the Project • Esau – I have a interest in a career that involves natural resources. • Austin – I am a new student at Wildlands this year. This project sounded like a great way to start the year. • Brett – I also have an interest in a career in natural resources.

  3. The Issues • Sedimentation Issues and Mapping • Water Quality Issues and Trophic State • Flushing Rate

  4. Sedimentation/Mapping… • Background/Problem • How has the pond changed over the last 5 years?

  5. 2006 Fall Creek Pond Depth Map

  6. 2011 Fall Creek Pond Depth Map

  7. Trophic State… • What is it? • Why is it important? • How is it calculated?

  8. These are the three main Trophic States... • Oligotrophic • Mesotrophic • Eutrophic

  9. Oligotrophic

  10. Mesotrophic

  11. Eutrophic

  12. How We Converted Our Data Raw Data Data averages converted to Trophic State Index values Trophic State numbers derived visually from Carlson’s Trophic State Index graphic from EPA’s Lake and Reservoir Restoration Guidance Manual.

  13. Carlson’s Trophic State Index

  14. Where is the Fall Creek Pond on this scale?

  15. Flushing Rate… • What is it? • Why is it important? • How is it calculated?

  16. Flushing Rate Calculations… • To Determine Flow Rate • Inflow and Outflow • Inflow = .2562 meters cubed/second = 22,135.68 meters cubed/day • Outflow = .2246 meters cubed/second = 19,405.44 meters cubed/day • Averaged = .2404 meters cubed/second = 20,770.56 meters cubed/day • Volume of the pond = 95,780 meters cubed • 95,780 meters cubed/20,770.56 meters cubed/day = 4.6 days of hydraulic residence time

  17. Conclusion… Tying it all together • New Map • Flushing Rate • Sedimentation Rate • Trophic State

  18. Questions or Comments?

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