Lake Zoar Authority | Water Quality Results
The Lake Zoar Authority is a multi-town organization consisting of representatives from the four towns that border the lake - Monroe, Newtown, Oxford, and Southbury. The Lake Zoar Authority is tasked with the goals of improving water quality and promoting safe boating on the lake.
Lake Zoar Authority, Lake Zoar, CT, Connecticut, Newtown, Southbury, Oxford, Monroe
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Water Quality Results

Lake Zoar Treatment Notice:
Second Herbicide
Application Scheduled:
September 27, 2022

NOTIFICATION OF AQUATIC TREATMENT SCHEDULING LAKE ZOAR MONROE, NEWTOWN, OXFORD, SOUTHBURY Last Updated 9/21/2021 2:40 PM est In accordance with CT DEEP, Pesticide Division notification requirements, selected areas of Lake Zoar will be chemically treated with Reward (Diquat) herbicide targeting control of the aquatic nuisance plants Eurasian watermilfoil...

Lake Zoar
Treatment Survey

Results for Survey Conducted on September 7th, 2022 Pre-treatment Survey: survey conducted on June 3rd, 2022 Treatment Date:  June 28th, 2022 Post-Treatment Survey: To be conducted after treatment to evaluate success. Treatment Areas (shown in Map 1): AreaSize (acres)Treatment Requirement1B0.7Treatment needed. Minor coverage of Eurasian milfoil and brittle naiad.16.6Treatment needed....

Microcystin Report for
August 4, 2022

"Here are this week’s assay results for Microcystin levels at tested public beach sites. Samples were collected August 3rd, 2022. Results meet the assay kit’s QC criteria.   The U.S. EPA and CT DPH currently advise a Microcystin threshold of 8.0 parts per billion (ppb; µg/L) for recreational waters.  Thank you for...