#7 - Comp Plan - Lakes

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#7 - Comp Plan - Lakes

  1. 1. Lakes
  2. 2. Review Of Current Chapter <ul><li>2 Lakes: Crooked & Ham (Netta is small) </li></ul><ul><li>Lakes are noted to be in ‘acceptable resource condition’ </li></ul><ul><li>Only Eurasian Water Milfoil is cited as problem </li></ul>
  3. 3. TREND ANALYSIS Lake Levels
  4. 4. TREND ANALYSIS Water Quality Grade B B+ B+ A A B Netta A B B B B C Ham B B B B B B B Crooked '09 '08 '07 '06 '05 '04 '03 '02 '01
  5. 5. TREND ANALYSIS <ul><li>Crooked Lake </li></ul><ul><ul><li>Water quality has significantly improved from 1983 to 2009 </li></ul></ul><ul><ul><li>Secchi transparency has an improving trend since 1993 </li></ul></ul><ul><ul><li>Total Phosphorus and Chlorophyll-a are statistically unchanged </li></ul></ul>
  6. 6. TREND ANALYSIS <ul><li>Ham Lake </li></ul><ul><ul><li>There is no long term trend in TP, Cl-a, and Clarity </li></ul></ul><ul><li>Netta </li></ul><ul><ul><li>There is no long term trend in TP, Cl-a </li></ul></ul><ul><ul><li>Clarity appears to be improving over the last 10 years </li></ul></ul>
  7. 7. Implications <ul><li>Declines in water level is the most significant trend and threat to lakes within the watershed </li></ul><ul><li>Declines in water level will probably lead to increased concentrations of TP & Cl-a </li></ul><ul><li>As water levels drop </li></ul><ul><ul><li>fishing will improve </li></ul></ul><ul><ul><li>mean temperatures could rise and DO levels could fall placing the fishery at risk </li></ul></ul>
  8. 8. Expectations <ul><li>Water levels will continue to drop </li></ul><ul><li>Greater occurrence of EWM & CLP </li></ul>
  9. 9. Questions? Thank You Coon Creek Watershed District

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