Sedimentation Loop

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Photographs of sedimentation problems and development in the Catawba River basin

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  • Sedimentation Loop

    1. 2. <ul><li>Catawba River below Lake Hickory Dam. </li></ul><ul><li>Photo by J. Wes Bobbitt. Flight by Southwings. </li></ul>
    2. 3. McCrary Creek, Mooresville, Lake Norman. Photo by J. Wes Bobbitt.
    3. 4. Gaston County, South Fork of the Catawba. Photo by J. Wes Bobbitt
    4. 5. I-77, Lake Norman. Photo by J. Wes Bobbitt
    5. 6. Hwy. 49, Lake Wylie. Photo by J. Wes Bobbitt
    6. 7. <ul><li>Sun City, Indian Lands, SC </li></ul>Photo by J. Wes Bobbitt
    7. 8. <ul><li>Lowes Headquarters, Mooresville, NC </li></ul><ul><li>Lake Norman </li></ul>Photo by J. Wes Bobbitt
    8. 9. Buffer zone destruction
    9. 12. Landfill near Catawba in Alexander County. Photo by J. Wes Bobbitt.
    10. 13. Photo by J. Wes Bobbitt
    11. 14. Polluted Surface Waters Over the past 20 years, non-point source pollution sources have increased by over 55% in our region due to the change in land cover. Lake Wylie Dam
    12. 15. Water Quality Issues <ul><li>Too many nutrients, </li></ul><ul><li>leading to </li></ul><ul><li>eutrophication and </li></ul><ul><li>too little dissolved oxygen </li></ul><ul><li>Acid rain </li></ul><ul><li>Mercury </li></ul><ul><li>Fecal coliform (improper sewage treatment, sewage spills, line leakage, and boat discharges) </li></ul><ul><li>Sedimentation </li></ul>
    13. 16. <ul><li>1 inch rainfall on an acre of woods produces no runoff. </li></ul><ul><li>The same one inch of rainfall on one acre of asphalt will produce approximately 26,000 gallons of runoff. </li></ul>
    14. 17. Development (continued) <ul><li>A one-acre parking lot produces 25,806 gallons of stormwater for every inch of rain compared with 1,630 gallons from a one-acre meadow. </li></ul><ul><li>Two thirds of the nation's polluted runoff comes from highways and roads. </li></ul>
    15. 18. <ul><li>Pollution from development </li></ul>Sediment Bacteria Metals Pesticides Fertilizers Petroleum Non-Point Source Pollutants
    16. 19. Regional Land Cover Change 1984 to 2003 Provided by American Forests 1984
    17. 20. Volume + Velocity Change in Natural Stream Flow =
    18. 21. 14 feet
    19. 22. Polluted, Sediment Filled Streams and Lakes
    20. 23. More People = More Pollution Uses Lost
    21. 24. The Charlotte Observer-Layne Bailey
    22. 27. Photo by J. Wes Bobbitt
    23. 28. Who must obtain the permit? <ul><li>Easy: </li></ul><ul><li>The “operator.” </li></ul>
    24. 29. Who is the “operator?” <ul><li>Not so easy. </li></ul>
    25. 30. Operator: <ul><li>(1) operational control over the site specifications </li></ul><ul><li>(2) day-to-day operational control of those activities at the site necessary to ensure compliance. </li></ul>
    26. 32. Normandy Rd., Mooresville, Lake Norman
    27. 33. Normandy Rd., Mooresville, Lake Norman
    28. 34. Normandy Rd., Mooresville, Lake Norman
    29. 35. Norman Point Subdivision, Denver, Lake Norman
    30. 36. Norman Point Subdivision, Denver, Lake Norman

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