Tuesday, January 26 – Status Update on Peninsula Harbour
Posted on: January 14, 2021
Map showing the Peninsula Harbour Area of Concern (AOC)

For those of you who are new or need a reminder, Peninsula Harbour is located on the north shore of Lake Superior approximately 290 km east of Thunder Bay and includes the Town of Marathon. The Area of Concern (AOC) encompasses both Peninsula Harbour and a portion of open Lake Superior. Peninsula Harbour has been deemed an AOC due to problems associated with bacterial contamination, aesthetic impairment, degraded fish and benthic communities, and high levels of toxic contamination such as mercury and PCBs that have been found in the fish and bottom sediments.

In the summer of 2012, a thin-layer sediment capping project was completed in Jellicoe Cove. Past industry activity from a pulp and paper mill and a chlor-alkali plant resulted in elevated levels of mercury and PCBs. To help create a clean habitat for organisms to thrive, Environment Canada and Ontario Ministry of the Environment funded this capping project to help accelerate natural recovery. The integrity of this project will be monitored for 20 years past its inception. This was one of the last major actions required to address environmental concerns in Peninsula Harbour.


Join us on Tuesday, January 26, 2021, from 10:00 AM to noon for a status update on the capping project, and review of beneficial use impairments (BUIs) in Peninsula Harbour. Presentations will cover the evidence for redesignating several of these impairments as “not impaired”. There are two ways to attend the meeting:

OPTION 1: Join the meeting from your computer, tablet or smartphone. (Recommended)


OPTION 2: Dial-in using your phone (long-distance charges may apply)
(For supported devices, tap the one-touch number below to join instantly.)

   Canada: +1 (647) 497-9391
   – One-touch: tel:+16474979373,,391157373#

   Access Code: 391-157-373

New to GoToMeeting? Get the app now and be ready when your first meeting starts:  https://global.gotomeeting.com/install/391157373

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