Lake Zoar Treatment Notice:
Herbicide Application
Rescheduled: 8/4/21

Lake Zoar Treatment Notice:
Herbicide Application
Rescheduled: 8/4/21

THE JULY 2021 TREATMENT WAS CONTINUOUSLY CANCELLED DUE TO EXCEEDINGLY HIGH WATER LEVELS. THE TREATMENT WILL NOW BE CONDUCTED ON WEDNESDAY 8/4/21.

NOTIFICATION OF AQUATIC TREATMENT SCHEDULING LAKE ZOAR

MONROE, NEWTOWN, OXFORD, SOUTHBURY

Updated 7/29/2021 6:23 PM

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In accordance with CT DEEP, Pesticide Division notification requirements, selected areas of Lake Zoar will be chemically treated with Reward (Diquat) herbicide and Copper Sulfate, targeting control the aquatic nuisance plants Eurasian watermilfoil and curlyleaf pondweed. The first annual treatment is scheduled for Wednesday, August 4, 2021, with a rain date of Thursday, August 5, 2021. Prior to treatment, the lake shoreline (in the treatment areas and at public access sites) will be posted with printed signs in accordance with DEEP requirements.

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The shorelines of treated areas will be posted with signs that list the following temporary water use restrictions to be imposed in treated areas: swimming, boating, and fishing, no restrictions; no use of treated lake water for drinking purposes for 3 days, no use of treated lake water for livestock consumption for 1 day, no use of treated lake water for irrigation for 3 days. These temporary water use restrictions apply only to the areas treated and affected by treatment. The chemical application is being conducted by the State licensed firm, SOLitude Lake Management, of 590 Lake Street, Shrewsbury, MA 01545, Tel. (508) 865-1000.

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The EPA’s Diquat Dibromide TRED Fact Sheet is available here

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The EPA’s Copper Sulfate Fact sheet is available here

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Details of a recent presentation made by Certified Lake Manager & Limnologist, Dr. George Knoecklein, on the Lake Zoar Aquatic Plant Management Plan is available in the April 2021 minutes here