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  • 08 Apr 2025 2:08 PM | Maggie Sullivan (Administrator)

    July is Lakes Appreciation Month! The Indiana Lakes Management Society (ILMS) wants to help you celebrate. Lakes appreciation month is an international effort by the North American Lake Management Society (NALMS) to highlight the value and importance of lakes and reservoirs. The goal is to encourage people to appreciate and protect these vital resources.

    ILMS is providing funds for events intended to educate or celebrate our valuable water resources. The Lakes Appreciation Event Sponsorship is intended to reduce the cost of holding educational events in or around Lakes Appreciation Month, July.  ILMS will also provide support in the form of event promotion through our network (newsletter, social media, email blast, etc.)

    A limited number of sponsorships will be awarded to lake organizations and watershed groups that organize an educational event in June, July, or August 2025.     

    Funds can be used to cover materials, speaker fees, space rental, or event promotion.  Some example events include water quality monitoring trainings, shoreline protection workshops, aquatic plant identification workshops, field days, or educational displays at social events. Check out https://www.nalms.org/lakes-appreciation-month/ for ideas about past events. Sponsorships are anticipated to be in the range of $100-$200.  

    Fill out a sponsorship application by April 30th to be considered.  Awards will be announced by May 27, 2025.


  • 08 Apr 2025 2:00 PM | Maggie Sullivan (Administrator)

    Thank you to everyone that attended the 36th Annual Indiana Lakes Management Conference on March 20th and 21st at the Embassy Suites in Noblesville, IN.  One of the highlights of the conference is handing out our annual awards.

    Bob Evans of Simonton Lake received the Volunteer of the Year Award.  Bob was instrumental in the founding of the Simonton Lake Area Homeowners Association and the Simonton Lake Conservancy District.  He has been involved with Simonton Lake since the 1990's and has supported multiple improvement projects including wastewater services, construction of a weir to regulate water levels, and dredging initiatives.  Thank you Bob!

    The Outstanding Project Award went to Lake George Conservancy District (LGCD) and Lake George Cottagers Association (LGCA) for their efforts in the reconstruction of the Lake George dam.  Lake George straddles the Indiana and Michigan border with a dam on the Indiana side that was originally constructed in 1930.  The LGCD and the LGCA worked with the Lake George Legal Lake Level District in Michigan to secure grants, loans, and other funding for the needed rebuild.  Despite many funding and permitting difficulties, the project was completed in October, 2024 for $1.4 million.  Great job!

    The Lake Gage - Lime Lake Association received the Outstanding Lake Association Award for their efforts in water quality monitoring including eDNA testing, aquatic weed control, lake safety, and outreach.  The lakes, located in Steuben County, have  a volunteer 69% participation rate with their residents and host a wide variety of events and activities that range from water quality monitoring projects to luminary display events to a monthly newsletter during the summer.  It is always wonderful to see so much participation from lake residents!


  • 07 Apr 2025 3:00 PM | Maggie Sullivan (Administrator)

    I recently had the opportunity to attend the 2025 Indiana Lakes Management Society (ILMS) conference, which focused on a wide range of pressing water quality issues in Indiana. As a college student with an interest in environmental and water resources, this conference provided valuable insights into the challenges and solutions in managing lakes, rivers, and watersheds.


    The opening session, “Strategies for Solving Regional Water Problems,” by Jill Hoffmann of the White River Alliance, set the tone for the rest of the conference. Her talk focused on the importance of collaboration across sectors and jurisdictions, especially since water issues rarely stay within one county or community. I appreciated how she emphasized that regional cooperation—not just individual projects—is critical to long-term success. It reminded me that solutions to water problems must match the scale of the problems themselves.

    Another session that stood out was "14 Years of Microcystin Monitoring in Kosciusko County Lakes" by Matt Burlingame from the Lilly Center. Microcystin, a harmful algal bloom toxin, has been a significant concern in Indiana's lakes. Matt shared data from over a decade of monitoring efforts, which showed how microcystin levels fluctuate over time and the conditions that contribute to these fluctuations. This session emphasized the ongoing need for regular water quality monitoring and the importance of early detection in preventing health risks associated with harmful algal blooms. It was particularly enlightening to see the importance of consistent monitoring and how data over time is key for understanding and managing lake health.

    I also attended “Lead in Muncie’s Water Supply,” presented by Damilola Olabiyi from Ball State. Her study on lead contamination in Muncie’s drinking water was both alarming and informative. She shared insights into not only the presence of lead in pipes but also how community awareness (or the lack of it) impacts public health responses. The session reinforced how environmental issues often intersect with public communication and equity—something I hadn’t thought about much before.


    In addition to these technical sessions, I also gained insight into the role of nature-based solutions in water quality management. The session on “Nature-Based Lake Sediment & Water Quality Solutions” by Landon Vine and Ted Blahnik (V3 Companies) introduced innovative approaches using natural systems—like restored wetlands and vegetative buffers—to reduce sediment and nutrient runoff. This nature-based focus was echoed in another session I found especially relevant: “Protecting Our Waters: Policy Updates and Nature-Based Solutions for Indiana’s Water Resources” by Maria Iturbide-Chang of the Hoosier Environmental Council. She discussed recent legislative efforts, as well as opportunities to incorporate ecological approaches into statewide policy. It was encouraging to hear about efforts being made to integrate science and sustainability into government decision-making.

    In terms of land and watershed management, I really enjoyed “Identifying, Assessing, and Prioritizing Streambank Erosion Concerns,” by Ross St. Clair and Jenna Meert. They walked us through real-life examples of erosion assessment and restoration projects, which made it feel very applicable. Streambank erosion is a major issue in many Indiana watersheds, contributing to sedimentation and water quality degradation. This session reminded me that effective watershed management requires an understanding of the interconnectedness of all factors affecting water health, from erosion to land use practices. Speaking of land use practices, “The Importance of Farmer Outreach in National Water Quality Initiative Watershed Projects” by Sarah Reilly also helped me understand how critical it is to work with agricultural communities if we want to improve water quality on a broad scale.

    On the more technical side, “Using Drones as a Tool in the Ecological Restoration Process” by Clay Kusbach and Jacob Peters showed how drone imagery is becoming a powerful tool in planning and monitoring restoration work. I hadn’t realized drones could be used so effectively in this field, and I left the session really interested in learning more about how these technologies can be applied.

    The volunteer engagement sessions were inspiring, too. In “Snapshot Water Quality Monitoring Day,” Caitlin Yoder explained how everyday citizens can get involved in water quality testing across multiple lakes and streams. Similarly, “The River Assessment Field Teams (RAFT)” presentation by Kelly Brown highlighted how structured, volunteer-based sampling can generate useful data while also building community awareness.

    Finally, “A Wake-Up Call—Wakesurfing and Indiana Law” by Lyn Crighton was definitely a wake-up call. I was already aware that wakesurfing can contribute to shoreline erosion, but this talk deepened my understanding of how serious the impacts can be, especially on smaller lakes. Lyn explained the science behind wave energy and the lack of regulation, highlighting the need for more awareness and policy around this growing issue. What I appreciated most was how she approached the issue from both an ecological and community standpoint, stressing the need for balance between recreation and lake preservation. It made me think about how policy and public education could better support sustainable use of our waterways.


    Overall, the 2025 ILMS conference was a great experience that deepened my understanding of the complexities surrounding water quality management. It was also a great opportunity to be able to hear directly from scientists, consultants, policy advocates, and community leaders working to protect Indiana’s water resources. It helped connect classroom learning to real-world application and gave me a deeper appreciation for the broad range of expertise involved in managing our lakes and watersheds. I left feeling both more informed and more motivated to be part of this work in the future. And I can't wait for next year!

  • 07 Apr 2025 10:17 AM | Maggie Sullivan (Administrator)

    July has been Lakes Appreciation Month for the past 27 years; to celebrate, the North American Lake Management Society (NALMS) is inviting elementary, middle, and high school students to submit posters reflecting on how important lakes are to all of us. Submitted artwork will be a big part of NALMS’ celebrations through July across North America. Show us your love for lakes by sending us your artwork!

    This year's contest theme is "Why Are Lakes Special?" and the deadline is June 20th.  Three posters will win a $300 cash prize!

    Posters will be judged by grade range, with a winning poster in each division - elementary (grades K-4), middle (grades 5-8), and high school (9-12):

    • A $250 cash prize will be awarded to the three winning artists’ schools! Schools are encouraged to utilize these funds for STEM or lake ecology curriculum/materials, activities, and/or field trips.
    • A $50 cash prize will be awarded to the three winning student artists!
    • Winning submissions will be featured on the NALMS website, e-newsletter, and social media channels.

    Find more details and apply online at:  https://www.nalms.org/lakes-appreciation-month/poster-contest/


  • 03 May 2024 4:11 PM | Maggie Sullivan (Administrator)

    Interested in the water quality of your lake but there is no data out there? Join the Indiana Volunteer Lake Monitoring Program! Volunteers like you donate about one hour of their time every two weeks to collect the necessary data. Your efforts provide a number of benefits:  

    • As a volunteer you will learn more about lake science (limnology)
    • You’ll be able to take Secchi disk transparency readings, qualitative water assessments, and possibly collect total nitrogen, total phosphorous, and chlorophyll-a samples.
    • By analyzing your samples and summarizing the information that you collect, we will be able to assess the changes in water quality at your lake.
    • You will be able to compare the water quality of your lake to lakes around the state.
    • After collecting several seasons’ worth of data for a particular lake, we can begin to assess the long-term trends in the lake and determine if the lake’s water quality is being degraded, is improving, or staying the same.
    • This assessment can identify which lakes should receive more intensive management and/or monitoring.

    For more information on the Volunteer Lake Monitoring Program: Sign up for our May 29th webinar, visit the Indiana Clean Lakes Program website or email inclp@indiana.edu.

  • 18 Apr 2024 4:01 PM | Maggie Sullivan (Administrator)

    Thank you to everyone that attended the 35th Annual Indiana Lakes Management Conference on March 21st and 22nd at Potawatomi Inn at Pokagon State Park in Angola, IN.  One of the highlights of the conference is handing out our annual awards.

    Congratulations to Volunteer of the Year Ronald Vaughn of the Pretty Lake Conservation Club in Lagrange County for his multi-year volunteer efforts to improve the water quality of Pretty Lake.


    The Outstanding Project Award was given to LaGrange County Strategic Water Quality Monitoring Program for their coordination with multiple lake associations, local government, and nonprofits to develop a county-wide strategic water quality monitoring program.


    And congratulations to Outstanding Lake Association Steuben County Lakes Council for their lake testing efforts as well as their multiple efforts and collaborations with the community at large including Trine University, the Steuben County Community Foundation, and the Angola library.


    Other conference highlights include plenary speakers Matt Meersman of St. Joesph River Basin Commission and Dr. Indra Frank of Hoosier Environmental Council.  We also had the opportunity to wish Indra a happy retirement.  She will be missed!

    It was great to see people mingle with the exhibitors and learn about topics such as mute swan management, various case studies around our great state, how water quality effects our herpetofauna, and many other great presentations surrounding our Indiana waters. On Friday, attendees partook in a Limnology 101 workshop with opportunities to learn more about aquatic plant ID, algal and macroinvertebrate ID, and how to use various forms of water sampling equipment.

    Thank you to everyone that participated in the conference and we are looking forward to seeing you next year in Indianapolis!

  • 19 Jan 2024 4:35 PM | Maggie Sullivan (Administrator)

    Help us celebrate 35 years of Indiana Lakes Management Society! The Indiana Lakes Management Society will be hosting the 35th Annual Indiana Lakes Management Conference March 21st and 22nd, 2024 at the Potawatomi Inn at Pokagon State Park in Angola, IN.

    Find more information on our conference page.


    ILMS Lake Leaders Scholarships Now Available

    Indiana Lakes Management Society provides scholarships to assist in building the capacity of our state’s lake leaders to learn about protecting our valuable water resources. The Lake Leaders Scholarship is intended to reduce the cost of registration, meals and lodging for attendance at our annual conference.

    A limited number of scholarships will be awarded to staff, board members and active volunteers who hold a leadership role in lake organizations or watershed groups. Scholarships will be provided to cover a portion of the cost of attending the conference to those best-qualified applicants who are in need of assistance to enable their participation. Preference will be given to those individuals who have not attended an ILMS conference in the last 3 years.

    Those interested in receiving a scholarship must:

    • Be affiliated with a lake organization 
    • Commit to attend the entire conference
    • Express a financial need 
    • Pay for their own costs above and beyond what is reimbursed 
     Apply here:  Lake Leader Scholarship Form


  • 02 Oct 2023 9:45 AM | ILMS Administrator (Administrator)



    Bathymetry is the measurement of the depth of water in oceans, seas, lakes, or ponds. Bathymetric maps look a lot like topographic maps, which use lines to show the shape and elevation of land features. On topographic maps, the lines connect points of equal elevation. On bathymetric maps, they connect points of equal depth. 

    Bathymetry has been used in many forms for hundreds of years. In ancient times, scientists would conduct bathymetric measurements by throwing a heavy rope of the side of a ship and recording the length of rope it took to each the seafloor. These were highly inaccurate measurements and needed thousands of measurements to make a map. 

    Today, sonar or echo sounders are used to make bathymetric measurements. These devices sends out a sound pulse from a ship's hull, or bottom, to the bottom of the water body. The sound wave bounces back to the ship. The time it takes for the pulse to leave and return to the ship determines the topography of the seafloor. The longer it takes, the deeper the water. 

    Sonar based mapping technology is extremely useful for lake management.

    These management tactics are as follows:

    • Sonar-based mapping technology has the capability of developing aquatic vegetation maps of a lake or pond. These maps can be incredibly helpful in developing plans, budgeting, and permitting. 
    • Mapping can help identify opportunities to enhance your fishery. Assessing depth can help identify fish habitat needs within the water body. 
    • Lake mapping can be useful in identifying the water volume of a water body.  This knowledge can be used for historical data and also resource management for municipal water resources. 
    • Mapping of sediments on a water body can help identify effective strategies for dredging, sediment phosphorus management, or tracking sedimentation accumulation over time due to erosion. 

    While there are many ways to manage a waterbody, bathymetry can be a management tactic to add to our toolboxes for lake management. Having knowledge of what is going on both at the top and bottom of a water body can inform and improve overall management.


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