Lake Superior Water Quality and Fish Habitat Improvements Lead to Removal of Nipigon Bay as an Area of Concern
NIPIGON, Ont. — Nearly four decades of environmental restoration have resulted in Nipigon Bay being officially removed from the list of Great Lakes Areas of Concern, marking a major milestone for governments, Indigenous communities and local organizations working to restore the Lake Superior ecosystem.
The governments of Ontario and Canada announced the achievement after years of investments in wastewater infrastructure, industrial pollution controls and habitat rehabilitation. Officials say the work has improved water quality, strengthened fish populations and restored important fish and wildlife habitat along the north shore of Lake Superior.
“Returning Nipigon Bay in northern Ontario to a vibrant, healthy ecosystem is a major victory made possible through the dedicated efforts of our two governments, along with the many Great Lakes partners and local residents who supported this conservation work,” said Todd McCarthy, Minister of the Environment, Conservation and Parks. “By working together to restore the health of the Great Lakes, we are delivering on our promise to protect Ontario and support the resilience of our communities and local economies for generations to come.”
Decades of Pollution and Environmental Damage Addressed
Nipigon Bay was designated an Area of Concern in 1987 after human activity significantly damaged water quality and aquatic habitat.
Environmental pressures included hydroelectric development on the Nipigon River, discharges from the former Red Rock pulp and paper mill and municipal wastewater. The affected area covers nearly 50,000 acres, or approximately 20,000 hectares, and includes much of western Nipigon Bay as well as part of the Nipigon River, the largest river flowing into Lake Superior.
Delisting confirms that the ecosystem functions identified as impaired have been restored or improved to the standards required under the Great Lakes restoration process.
Wastewater, Industrial Standards and Habitat Restoration Drive Recovery
Major improvements included bringing secondary wastewater treatment facilities online in the townships of Nipigon and Red Rock. Industrial practices were also changed to comply with stricter provincial and federal pulp and paper regulations, helping reduce pollution entering the watershed.
Restoration projects targeted former wetlands, historic spawning areas and waterways in the lower Nipigon River. Work also improved natural river flows, rehabilitated creeks and rivers affected by severe degradation of brook trout habitat, and created additional fish and wildlife habitat at the Township of Red Rock marina.
“Today is a great day for Nipigon Bay, the Great Lakes, and freshwater in Canada. The delisting of Nipigon Bay as an Area of Concern reflects decades of dedicated work by our government and partners to restore water quality, habitats, and ecosystem health,” said the Honourable Julie Dabrusin, Minister of Environment, Climate Change and Nature and Minister responsible for the Canada Water Agency. “By working together, we have transformed a once-degraded area into a healthier ecosystem that will benefit local communities, Indigenous people and future generations. It shows that environmental restoration is possible when governments and communities work toward common goals.”
Governments and Partners Invest Millions in Nipigon Bay
The restoration was coordinated under the Canada-Ontario Agreement on Great Lakes Water Quality and Ecosystem Health and involved Indigenous and community partners, municipalities, researchers, businesses and residents.
Since 2018, Ontario has invested more than $17 million in the Nipigon Bay restoration effort and nearly $25.5 million since the late 1980s. The federal government has invested more than $12 million since 2012, while total partner investments since collaborative restoration efforts began have reached $68 million.
Partners have included Red Rock Indian Band, the Township of Nipigon, residents of Nipigon and Red Rock, Lakehead University, Nipigon Historical Museum and other community organizations and businesses.
“The delisting of Nipigon Bay as an Area of Concern is a major milestone that reflects decades of hard work and collaboration among local partners and First Nations to improve ecosystem health, restore fish habitat and protect the natural resources our communities depend on,” said Mike Harris, Minister of Natural Resources. “It shows what’s possible when we work together with a shared commitment to keeping Ontario’s fisheries and waterways healthy, resilient and thriving for future generations.”
Northern Ontario Leaders Welcome Environmental Milestone
Kevin Holland, MPP for Thunder Bay—Atikokan, said the restoration demonstrates the long-term value of collaboration across Northern Ontario.
“Today’s delisting of Nipigon Bay is a tremendous achievement for Northern Ontario and a testament to what can be accomplished when governments, Indigenous communities, local partners and residents work together toward a shared goal. For decades, people across the Nipigon region have been committed to restoring this important ecosystem, and we are now seeing the results in cleaner water, healthier fish populations and revitalized habitat. As Minister of Forestry and MPP for Thunder Bay—Atikokan, I’m proud to celebrate this milestone and the lasting benefits it will bring to the lands, waters and communities of Northwestern Ontario for generations to come.”
Chief Allan Odawa Jr. of Red Rock Indian Band stressed that environmental stewardship will continue beyond the formal delisting.
“Since time immemorial, the lands and waters of Nipigon Bay have sustained my people and remain an important part of who we are. After nearly four decades of work to restore the bay and address the impacts of industry, we are seeing the results through cleaner water, restored habitat, and stronger, healthier fish communities. Today is an important milestone, but our responsibility to these lands and waters does not end with the removal of this designation. Red Rock Indian Band will continue to protect and care for Nipigon Bay, ensuring these lands and waters remain clean, healthy, and capable of sustaining our people for generations to come.”
Robert Stewart, associate professor in Lakehead University’s Department of Geography and the Environment, also highlighted the role of community participation.
“On behalf of Lakehead University, we are pleased to support the delisting of the Nipigon Bay Area of Concern. Over 30 years of commitment by regular citizens of the Nipigon Bay is a testament to the power of community action and local resolve to remediate the most serious legacy pollution issues in Lake Superior.”
Nipigon Bay Joins Restored Great Lakes Areas
Canada and the United States formally identified 43 Great Lakes Areas of Concern in 1987. In Canada, four of the 17 designated areas have now been restored, while two are considered to be in recovery.
The Nipigon Bay milestone underscores the scale of long-term investment required to reverse legacy pollution while protecting fisheries, freshwater resources and communities that depend on the Great Lakes.
Ontario says continued preservation, restoration and conservation of the Great Lakes will remain part of its broader effort to support communities, tourism, natural resources and economic activity across the province.