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2013 winter meeting crooked lake management plan
 

2013 winter meeting crooked lake management plan

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    2013 winter meeting crooked lake management plan 2013 winter meeting crooked lake management plan Presentation Transcript

    • 2008 to 2013
    • AgendaReview Planning & Management ApproachReview the Issues and What’s Been DoneReview the Current IssuesThings in the worksQuestions
    • Identified Issues on 3/25/08 Milfoil, weeds, invasive spp. Water Clarity Muck Water Quality/Nonpoint pollution Water Level Garbage & Trash
    • 2007ConcernShallow Lake ‘Switches’Clearwater State Turbid StateLarge aquatic plant community Low aquatic plant productivityLow algal productivity High algal productivityLarge grazer population Low grazer productivity (zooplankton)
    • Clear scientific understanding of switch into turbid state Unclear understanding of reverse switch back to healthy water quality
    • 1. Invasive Species Strategy
    • 2. Trends in Water Clarity
    • 3. MuckNot an Issue that can be addressed
    • MuckNature of shallow lakeBoat channel excavatedin 2008Requires permit fromstate – contrary tofishery objectives
    • 4. Non-Point Source PollutionActivity 2009 2010 2011 2012Water QualityMonitoring (9.16) * * *Buffer Strips(9.05) 2 ? ?Rain Gardens 3(9.06)Inspect Ponds(9.12) * *
    • 4. Water Quality
    • Nonpoint Source Pollution/Stormwater Management Objective Goal 1990-2006 2008-2012 Avg AvgTotal Phosphorus 40 ug/L 30 ug/L 27.9 ug/L(TP)Chlorophyll-a <15 ug/L 11.6 ug/L 6.6 ug/LSecchi Disk > 6 ft 5.3 ft 8.4 ftTransparencyDissolved Oxygen 5 mg/L daily avg 8.5 mg/L daily 6.9 mg/L(DO)Treatment of 1 – 2 Buffer strips <1 032% of direct established eachdischarge year
    • 5. Garbage & TrashActivity 2009 2010 2011 2012Enforcement Blitz * * * *Increase Garbage * * * *Pick upMore Garbage Cans * * * *
    • 6. Water Level Trends
    • 6. Water Level NeedsKnow groundwater issuesFollow development of County Geologic AtlasFollow City and State groundwater appropriationto the Northeast of the Lake (Supply side)Conserve waterINFILTRATE! Soak It In!
    • ConclusionsWater quality is very good Noticeable improvements occurred in 2011 and 2012 Invasive aquatic plants continue to be a challenge Effects of groundwater on Lake levels is a concern
    • CCWD Plans & Actions Annual Monitoring Lake Level Lake Water Quality Lake Vegetation Management Inspections Lake Outlet & Dam Grant availability Demonstration Education
    • Next 3 Years Lake Vegetation Management Plan2013 Update Lake Management Plan Develop Aquatic Invasive Species Plan Groundwater - Surface Water Study2014 Update Stormwater Management Plan Watershed Restoration and Protection Plan (TMDL)2015 Assess berm for Repairs