Pefferlaw Dam


The Pefferlaw Dam and Pefferlaw River are just two of the unique features that gives this area its distinct charm and character.

The Town of Georgina has assumed ownership of the Pefferlaw Dam. Council has endorsed the decision that saw the ownership of the dam transition from the Lake Simcoe Region Conservation Authority to the Town, effective June 30, 2022. Read the media release for more information.  

Further details including background information and the Pefferlaw dam report can be found on the Conservation Authority's dedicated Pefferlaw Dam page.

Engineering assessment

Town staff worked in collaboration with the Conservation Authority to complete a technical assessment of the existing conditions of the Pefferlaw Dam. Field crews were on site to undertake these assessments.

The Town retained D.M. Wills Associates Ltd. an Engineering Consultant, to complete field studies that included:

  • Visual inspections
  • Topographic surveys
  • Drill boreholes to investigate current soil conditions
Town staff updated the Town Council on April 27, 2022. The briefing note is available below. The stop log installation was completed in early May 2022.

A letter outlining this assessment was sent to nearby residents, you can view a copy of this letter below. 

Photos and videos


The Pefferlaw Dam in the fall with trees and mist on the water

Public engagement

The Town and LSRCA understand the importance of the Pefferlaw dam to residents and the entire community. Once potential options for the dam are known, residents will be informed what the next steps look like for this popular area.


Letter to residents

Council reports

Briefing Note

April 27, 2022 - Briefing note to council

Stop Log Notice

April 19, 2022 - Stop Log Notice

Council Closed Session - reporting out Nov. 17, 2021

That staff move forward as directed, including with regard to the Pefferlaw Dam Conservation Area that:

  1. In collaboration with the Lake Simcoe Region Conservation Authority, commission additional technical analysis to assess the full scope of repairs and costs of the Town assuming ownership of the Dam structure and adjacent parcels;
  2. Enter into an Operations Agreement with the Lake Simcoe Region Conservation Authority until such time as a final determination is made on the transfer of ownership of the Dam structure, wherein the Town agrees to assume responsibility of the installation/removal of the stop logs/flashboards, subject to a satisfactory inspection of the Dam by a third-party expert, and perform regular inspections of the Dam; and
  3. Staff provide an update to Council no later than spring 2022 (Town staff is expecting this update to be April 27,2022)

Council motion – Jan. 27, 2021

Town of Georgina Council approved a motion from the LSRCA and referred it to the Chief Administrative Officer for follow up and reporting back to Council. The motion includes a recommendation the LSRCA work with the Town in 2021 as a transition period for the operation of the dam. This includes developing funding opportunities with the Town for LSRCA staff and Town staff to install the stop logs together in the spring of this year, and providing the Town with the equipment required for the operation of the dam and provide training as required. Read the motion.

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