2025 Weed Treatment Fund Raising Push
We're excited to report that throughout the month of March, the total amount raised for Lake Shirley's 2025 weed treatment is $53,744! We could not have done this without the support and advocacy of all of you, and for that, we are sincerely grateful. Your generous contributions enable us to proceed with the application of Sonar (fluridone) this summer to treat for invasive weeds. Treatment will begin in April, with additional treatments in May and June. Notice will be posted in advance of treatment accordingly. You may click the "Donate" button above to make a contribution via PayPal.
Updated weekly - last update Friday, March 28, 2025
The Official Website of Lake Shirley and the Lake Shirley Improvement Corporation
Welcome to the Lake Shirley Improvement Corporation website. This website is for members and non-members alike who have a vested interest in the well being of our beloved Lake Shirley.
On this website you’ll find up-to-date information on monthly Board of Directors meetings, Lake news, upcoming events, links to important information, and how your membership benefits us all.
Facts About Lake Shirley
354
Surface Area
(in Acres)
27
Shoreline Miles
14
Average Depth
(in Feet)
32
Deepest Point
(in Feet)
120+
LSIC
Members
Latest Lake News
2024 ANNUAL REPORT AND TREATMENT REPORT NOW AVAILABLE
NEW - 2025-04-28 - The 2024 - Lake Shirley Annual Report - PDF and the 2024 - Lake Shirley End-of-Year Treatment Report - PDF are now available.
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NOTICE OF INITIAL FLURIDONE HERBICIDE TREATMENT
NEW - 2025-04-17 - Attached is the notice of the initial fluridone (Sonar) herbicide treatment at Lake Shirley. The initial treatment is scheduled for Tuesday, April 29 using the liquid (Sonar Genesis) and granular (Sonar ONE) formulations of the fluridone herbicide. This will be followed up with multiple inspections/herbicide concentration testing and at least two follow-up applications, tentatively scheduled for May 22 and June 12. Notice (PDF) | Poster (PDF)​
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2025 SPRING NEWSLETTER
NEW - 2025-04-28 - The 2025 Lake Shirley Improvement Corporation Spring 2025 Newsletter is now available - (PDF)
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LSIC ANNUAL MEMBERSHIP MEETING
Please join us for the annual LSIC Membership meeting on Wednesday May 7th at 6pm at St Anthony's Hall in Shirley. Looking forward to seeing you all there!
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SUPPORT FOR TREATMENT PLAN AGAINST INVASIVE VEGETATION AND ALGAE GROWTH
2025-02-24 - For nearly 20 years, the Lake Shirley Improvement Corporation has spearheaded the treatment of Lake Shirley for invasive vegetation and algae growth. The stewardship of Lake Shirley is the LSIC’s primary mission and goal, contributing to the enjoyment and health of the lake for generations to come.
The cost of this full-lake, long-term treatment is $224,600. While the LSIC has funds in reserve, we will need to quickly raise an additional $50,000 for this treatment, by the end of March. Treatment must begin in April to be effective for 2025. For that reason, we are reaching out to every lake resident with an urgent plea for contributions to fund this battle against invasive weeds.
We kindly ask for your support through a donation to help fund this vital project. Every contribution, no matter the size, brings us closer to restoring and protecting our beloved lake. Donation Letter (PDF) | Donate Now​
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2025 PROPOSED WEED TREATMENT FILES
NEW - 2025-02-21 - Below are the PDF files for the 2025 Proposed Weed Treatment. These files can be found linked below as well as on the Resources page.
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Support for Treatment Plan Against Invasive Vegetation and Algae Growth - PDF
Lake Shirley 2020 Plant Analysis - PDF
Lake Shirley Lake Management Annual Report 2023-2024 - PDF
LSIC 2025 Treatment Contract - PDF