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
Resources
LSIC IMPORTANT DOCUMENTS
Lake Shirley Improvement Corporation By Laws - web | PDF
Welcome Letter - New Neighbors / Homeowners - PDF
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MOST RECENT ANNUAL NEWSLETTER
2025 - Spring Newsletter - PDF
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2025 PROPOSED WEED TREATMENT
2020 - Lake Shirley 2020 Plant Analysis - PDF
2024 - Lake Shirley Lake Management Annual Report 2023-2024 - PDF
2025 - LSIC 2025 Treatment Contract - PDF
2025 - Support for Treatment Plan Against Invasive Vegetation and Algae Growth - PDF
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LAKE MANAGEMENT
2024 - Lake Shirley Annual Report - PDF
2024 - Lake Shirley End-of-Year Treatment Report - PDF
2024 - Lake Shirley Weed Treatment Map - PDF
2023 - Lake Shirley Annual Report - PDF
2023 - End of Year Treatment Report - PDF
2022 - Lake Shirley Annual Report - PDF
2021 - Lake Shirley Annual Report - PDF
2020 - Lake Shirley Long Term Macrophyte Monitoring Assessment Report – 2002-2019 - PDF
2019 - Year-End Report for the Aquatic Management Program - PDF
2019 - Lake Shirley Drawdown 5-Year Permit - PDF
2019 - Lake Shirley Management Plan - PDF
2018 - Lake Shirley Annual Report - PDF
2017 - Diagnostic Assessment - PDF
2017 - Managing Aquatic Invasive Plants - MA DCR - PDF
2017 - Massachusetts Lake and Pond Guide - PDF
2017 - 2015-2017 Lake Shirley Diagnostic Study - PDF
2016 - Pre-Treatment Report - PDF
2016 - Lake Shirley Management Plan - PDF
2015 - Year-End Report for the Aquatic Management Program - PDF
2015 - Aquatic Treatment Proposal - PDF
2014 - Year-End Report for the Aquatic Management Program - PDF
2014 - Notification of Aquatic Treatment - PDF
2014 - Aquatic Treatment Proposal - PDF
2013 - Lake Shirley Aquatic Vegetation Survey - PDF
2013 - Year-End Report for the Aquatic Management Program - PDF
2013 - Lake Management Report - PDF
2013 - Lake Shirley Plant Survey/Inspections - PDF
2012 - Lake Shirley Aquatic Vegetation Survey - PDF
2012 - Post-Treatment Inspection/Project Completion Report - PDF
2012 - Report on Weed Inspection - September - PDF
2012 - Aquatic Plant Survey - PDF
2012 - Aquatic Treatment Proposal - PDF
2011 - Lake Shirley Aquatic Vegetation Survey - PDF
2011 - Post-Treatment Inspection/Project Completion Report - PDF
2011 - Aquatic Treatment Proposal - PDF
2010 - Post-Treatment Inspection/Project Completion Report - PDF
2010 - Aquatic Vegetation Survey - PDF
EMERGENCY ACTION PLANS
2023 - Lake Shirley Dam Emergency Action Plan - PDF
2014 - Lake Shirley Dam Emergency Action Plan - PDF
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LAKE SHIRLEY MAPS
Topographic Map - PDF
Water Depth Map - PDF
Lake Shirley Bathymetric Map (Water Depth) - PDF
BSC FIGS - PDF
2008 Treatment Area Map - PDF
2009 Treatment Area Map - PDF
2011 Treatment Area Map - PDF
2012 Treatment Area Map - PDF
2013 Treatment Area Map - PDF
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LUNENBURG ORDER OF CONDITIONS
2022 Order of Conditions Extention # 284-0474 - PDF
2020 Order of Conditions DEP # 284-0474 - PDF
2019 Order of Conditions DEP # 208-1168 - PDF - Expires 10/21/2024
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ADDITIONAL RESOURCES
Water Quality Criteria for Nitrogen and Phosphorus Pollution
US EPA: National Lakes Assessment
US EPA: Wadeable Stream Assessment
USGS Circular 1350: Nutrients in the Nation’s Streams and Groundwater