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Clear Lake Watershed Project

About the Clear Lake Enhancement and Restoration Project

  • What's the problem with Clear Lake?
  • What's being done to help Clear Lake?
  • What can I do to help?
  • What is the future of Clear Lake?
  • Meet the project coordinator

    What's the problem with Clear Lake?
    Clear Lake was placed on Iowa's list of impaired waters due to its excessive levels of nutrients, phytoplankton and indicator bacteria. Phytoplankton, commonly known as algae, are microscopic plants that require sunlight, water and nutrients for growth.

    High nutrient levels, primarily phosphorous, cause annual algal blooms. These blooms, which sustain throughout the spring, summer and fall, reduce water quality to less than a foot and impair lake recreation, fish and wildlife habitat, and the local economy.

    The primary cause of Clear Lake's declining water quality is nutrient loading, followed by a secondary concern of sediment loading. Clear Lake has battled excess nutrients for many years, which over time has caused the lake to become nutrient rich.

    Countering these threatening problems, the Clear Lake Enhancement and Restoration Project (CLEAR) has been focusing on implementing watershed improvements in both agricultural and developed areas.
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    What's being done to help Clear Lake?
    In 2006, the CLEAR project assisted a large scale effort by local leaders whom secured a total of $13 million in state, local government and private funding to dredge the west end of Clear Lake because of the high levels of nutrients. With all but $2.5 million secure, the Clear Lake dredging project is slated to begin in the spring of 2008.

    CLEAR has helped facilitate a partnership between the Iowa DNR and the U.S. Army Corps of Engineers to perform restoration work on Ventura Marsh, west of Clear Lake. The restoration is set to begin in the fall of 2008.
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    What can I do to help?
    Landowners in the Clear Lake watershed can improve the lake by partnering with the Clear Lake Enhancement and Restoration Project.

    David Knoll, watershed project coordinator, can work with you to evaluate your property and identify practices that can help both the lake and your property. Knoll can also help find financial assistance to install those practices. Landowners participating in the watershed project can generally get improved financial assistance opportunities.

    Those interested in helping preserve one of north central Iowa's most important natural resources are encouraged to join the Association for the Preservation of Clear Lake. Citizens can also join Friends of Clear Lake, whose goal is to secure funds to clean up Clear Lake.

    The Clear Lake Enhancement and Restoration Project has also taken the time to educate students in the Clear Lake school district. Seventh-grade students at Clear Lake Middle School help each year by holding a special clean up day at the lake. The CLEAR project also gives class presentations and tips to students on the importance of keeping the environment clean.

    The CLEAR project also encourages local citizens to use zero phosphorous lawn fertilizers, eliminate pet waste and to not mow grass clippings into the street, which eventually find their way to the lake through the storm water system.
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    What is the future of Clear Lake?
    The future of Clear Lake is bright if conservation practices are maintained. An Iowa State University analysis suggests that a 60 percent reduction in total phosphorous loading to Clear Lake should bring water clarity to the 2.5 - 4 foot level, once lake conditions equal out. It is likely that such a management scenario could bring water clarity in Clear Lake back to the pre-1970 levels, a highly desirable outcome for everyone.

    Clear Lake holds annual celebrations each year that attract people from all over the state, including the July 4 celebration and Christmas by the Lake. With many of these water quality projects slated to be completed soon, it will only continue to improve tourism and local businesses.
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    Knoll was hired as the full-time project coordinator in June 2001.

    Meet the project coordinator
    David Knoll grew up in New Hampton, Iowa and attended Northeast Iowa Area Community College in Calmar before transferring to Iowa State University and majoring in animal ecology. Knoll earned a Bachelor's Degree in science biology.

    Knoll worked under John Downing, a professor in the Department of Ecology Evolution Organismal Biology. Knoll graduated from ISU in 1999 and in March 2000 was hired as the project coordinator at Clear Lake.

    Knoll enjoys working on the variety of conservation projects going on around Clear Lake and loves seeing measurable results. Knoll enjoys the ability to work with people who are interested in improving water quality.

  • For other ways you can get involved with the Clear Lake Watershed Project, contact David Knoll watershed coordinator, at (641) 923-2837, ext. 3 or David.Knoll@ia.nacdnet.net

    Project partners

    For More Information
    Local:
    David Knoll
    Clear Lake Watershed Project Coordinator
    (641) 923-2837 ext. 3
    David.Knoll@ia.nacdnet.net
    Hancock County NRCS Office

    Statewide:
    Steve Hopkins
    DNR Nonpoint Source Program Coordinator
    (515) 281-6402
    Stephen.Hopkins@dnr.iowa.gov

     

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