1. Crooked Lake
2014-18 Management Plan
Public Input Workshop

2. Outline
1. Why we are here
2. Where are we at?
3. Review
– Laws & Management
– The Resource
– Uses
– Changes and Implications
4. Brainstorm Needs
5. I.D. Issues and Concerns

3. 1. Introductions
1. Name
2. Connection with Crooked Lake
3. Biggest thing you like about Crooked Lake
4. Biggest concern you have about Crooked
Lake

4. 2. Why Are We Here?
Current Comprehensive Lake Management Plan
is coming to an end.
Other?

5. Where are we at?
Current Plan: 2008 – 2013

6. Issues Identified on 3/25/08
1. Milfoil, weeds, invasives
2. Water Clarity
3. Muck
4. Water Quality/Nonpoint
pollution
5. Water Level
6. Garbage & Trash

7. MILFOIL, WEEDS, INVASIV
E SPECIES

8. Invasive Species Strategy
Annual
Treatment
Plant
Survey
Assess Plant
Restoration
Capability
Yes
Treatment
Variance
Treat 15%–
20%
No
Treatment
Variance
Treat >20%
Boat
Inspection

9. 2013 Lake Vegetation Management
Plan

10. Treatment Trends

11. Thoughts
Significance of Trends? Implications for Future?

12. STILL AN ISSUE?

13. Needs

14. WATER CLARITY

15. Trends in Clarity

16. STILL AN ISSUE?

17. Thoughts
Significance Implications

18. Needs

19. 3. MUCK

20. Muck

21. Muck
Nature of shallow lake
Boat channel excavated
2008
Requires permit from
state & is contrary to
fishery objectives

22. STILL AN ISSUE?

23. Thoughts
Significance Implications

24. Needs

25. WATER QUALITY & NONPOINT
POLLUTION

26. Nonpoint Source Pollution/
Storm Water Management
Objective Goal 1990-2006
Avg
2008-2012
Avg
Total Phosphorus
(TP)
40 ug/L 30 ug/L 27.9 ug/L
Chlorophyll-a <15 ug/L 11.6 ug/L 6.6 ug/L
Secchi Disk
Transparency
> 6 ft 5.3 ft 8.4 ft
Dissolved Oxygen
(DO)
5 mg/L daily avg 8.5 mg/L daily 6.9 mg/L
Treatment of
32% of direct
discharge
1 – 2 Buffer strips
established each
year
< 1 0

27. 4. Water Quality

28. STILL AN ISSUE?

29. Thoughts
Significance Implications

30. Needs

31. GARBAGE & TRASH

32. 5. Garbage & Trash
Activity 2009 2010 2011 2012
Enforcement Blitz * * * *
Increase Garbage
Pick up
* * * *
More Garbage Cans * * * *

33. Trend in Performance

34. STILL AN ISSUE?

35. Thoughts
Significance Implications

36. Needs

37. WATER LEVELS

38. 6. Water Level Trends

39. STILL AN ISSUE?

40. Thoughts
Significance Implications

41. Needs

43. CONCLUSIONS

44. Conclusions
1. Water quality is very good
Noticeable improvements in water quality occurred
in both 2011 and 2012

45. Conclusions
2. Invasive aquatic plants continue to be a
challenge

46. Conclusions
3. Effects of groundwater on Lake levels
continues to be a concern

47. CCWD Plans & Actions
Annually
Monitor
• Lake Level
• Lake Water Quality
• Lake Vegetation Management
Inspect
• Lake Outlet & Dam
Grants
• Demonstration
• Education

48. Plans
2013
Lake Vegetation Management Plan
Update Lake Management Plan
Develop Aquatic Invasive Species Plan
2014
Groundwater x Surface Water Study
Update Stormwater Management Plan
Watershed Restoration Assessment and Plan (TMDL)
2015
Assess Dam for Repairs