This is the story of a creek
An aerial view of Blackbird Creek cutting through the boreal forest
that became a polluted canal for a pulp mill's wastewater
Two men bend down taking samples at the shore of Blackbird Creek, next to a black pipe pouring into the water where foam and bubbles coat the surface
and poured into Lake Superior
A slick of brownish foam and bumbles on the surface of water
ON-Terrace Bay-DJackson17

The life and death of Blackbird Creek

For a half-century, a pulp mill in Terrace Bay, Ont., has used a tributary of Lake Superior to dispose of its wastewater. With the mill shuttered, the polluted creek is bouncing back, but it’s been through this before

On a windless, warm fall day along the north shore of Lake Superior, a group of Lakehead University students were listening closely to their professor, until one of them broke down in tears. The professor, Robert Stewart, had been studying this area of Jackfish Bay, where Blackbird Creek pours into the greatest of the Great Lakes, since 2008. After all those years, he was used to the noxious mix of eggy sulphur and the steamy mist that stifles the air. But the students were getting queasy, so he paused his lecture. 

Between the smell and the wine-stained plume on the shore of a lake known to be pristine, the weight of industry was bearing down. On that day, Blackbird Creek wasn’t as it sounds. It’s a lovely name for the effluent canal of a pulp mill. 

A pulp and paper mill has operated intermittently since 1947 in Terrace Bay, Ont., under various owners.
Smokes pours out of stacks on the roof of a pulp mill in Terrace Bay, Ont.
Most recently, under Aditya Birla Group as the AV Terrace Bay pulp mill, seen here in October 2023.
The view down a road that ends at smoke stacks at a pulp mill in Terrace Bay, Ont.
The view down a road that ends at smoke stacks at a pulp mill in Terrace Bay, Ont.
About two months later, in January 2024, the mill shut down, and the company walked workers off the site.
A car drives down a wet roadway towards the shuttered pulp mill in Terrace Bay, Ont., under grey skies
A car drives down a wet roadway towards the shuttered pulp mill in Terrace Bay, Ont., under grey skies

In January 2024, the AV Terrace Bay pulp mill that had long pumped effluent through Blackbird Creek, en route to Lake Superior, closed. Just a few months later, Stewart along with Tim Hollinger, his former master’s student and now a remedial action plan coordinator, returned to the creek mouth and found the water teeming with oxygen — trout fry were jumping in the pools. Blackbird Creek was clear, cold and alive. 

Stewart and Hollinger were back in October 2024, collecting samples from various sites, and stopped for a moment to relax in the sunshine at the creek’s mouth on Jackfish Bay to reminisce. Hollinger remembers the people he brought to the creek over the years from scientists to students, paddlers to government officials, recalling the horror on their faces upon viewing the hot, foamy sludge: “People didn’t think it was possible in this day and age in Canada.” 

Map showing the north shore of Lake Superior including an Area of Concern at Jackfish Bay
The Jackfish Bay Area of Concern, on the north shore of Lake Superior, extends along Blackbird Creek, which has long been used as a canal for effluent from a pulp and paper mill in Terrace Bay, Ont. Map: Shawn Parkinson / The Narwhal

The weather was serene on that fall day. The plume that had left a brown slick across Jackfish Bay had all but disappeared into the iridescent turquoise the lake is famous for, and the noxious smell was replaced by the earthy notes of fall in northwestern Ontario. It had been nearly 10 months since the AV Terrace Bay Pulp Mill walked employees off site, shuttering the mill that first opened in 1947. The resilience of nature was overcoming an industrial legacy of nearly 70 years. 

Aerial view of a lake along a creek, running through boreal forest
Blackbird Creek enters Lake Superior after winding 14 kilometres downstream from the pulp mill in Terrace Bay. When the mill is operating, the creek normally contains more wastewater effluent than flows of natural water.
A man wearing a life jacket drives a zodiac boat on Lake Superior with islands in the background
Robert Stewart, a professor of geography and the environment at Lakehead University, began studying the Jackfish Bay area in 2008. Born and raised in Thunder Bay, Ont., on the north shore of Lake Superior, Stewart has spent his life surrounded by the impacts of extractive industries, and has devoted much of his career to remediating the contaminated environment he loves.

When the Terrace Bay pulp mill opened, an effluent canal was built to connect with Blackbird Creek — a convenient way to send its liquid waste into Lake Superior. It wasn’t until the Great Lakes Water Quality Agreement was signed in 1972 that researchers started to focus on the impact industry was having on the Great Lakes. Following that agreement, in 1987 Jackfish Bay and 42 other sites across the Great Lakes in Canada and the U.S. were officially listed as areas of concern. New guidelines were created for discharging effluent into the Great Lakes and their tributaries, and remedial action plans were proposed. 

But the use of Blackbird Creek as an effluent canal was grandfathered into the Terrace Bay mill’s operations. When it first opened, the mill owner was entitled to choose where to monitor the receiving environment for its effluent. They chose Moberly Bay, the smaller bay at the mouth of Blackbird Creek, on Jackfish Bay. That means Ontario’s Environment Ministry regulates the mill’s wastewater up to the end of the pipe that pours into Blackbird Creek, requiring that it’s cleaned to current effluent standards, while Environment and Climate Change Canada monitors the effluent’s impact on the environment in Moberly Bay.

The creek is caught in between and left unregulated, monitored only by researchers like Stewart and Hollinger — who are hoping someone else starts paying attention.

Two men look into the open door of a low quonset hut surrounded by brush
Stewart, left, along with remedial action plan coordinator Tim Hollinger, prepare to take water quality readings inside a hut constructed over a section of Blackbird Creek. The hut was built to reduce the amount of mist from hot effluent discharge that causes nearby Highway 17 to ice over during frigid winter months.
Treated effluent from the Terrace Bay mill is discharged from a pipe into Blackbird Creek, a natural body of what that is not monitored by the federal or provincial governments. Video: Tom Hollinger
Three black pipes stick out of the ground, aimed at a creek with trees behind it
A pipe carries effluent from the mill, when in operation, and releases it into Blackbird Creek alongside culverts that run under Highway 17. Terrace Bay locals recall a story where a family, returning from a holiday in the Rockies, assumed the steamy creek was a sulphurous hot spring, similar to those out west. They were bathing in the creek when a mill worker noticed them from the highway and warned them to get out. According to various people who share the story around town, the family experienced rashes across their bodies.

Creating pulp, a fibrous cardboard-like material, begins with logging trees. At the mill, the tree bark is removed and turned into hog fuel, a form of biomass that is used to help heat or power the mill itself. The barkless trees pass through a chipper. Those chips are put into a giant pressure-cooker-like machine called a digester, where the white liquors are added to break down the fibres. The remaining wood product is washed and bleached, pressed into sheets and shipped to manufacturers around North America — and sometimes overseas — to use in toilet paper, diapers and greeting cards. In short, pulp is the first stage of creating paper products, and effluent is what’s left behind. 

Locals of Terrace Bay and nearby Schreiber, Ont., refer to Blackbird Creek as the  “liquor line” because of the liquors used and produced through the pulp refining process.

At a mill 200 kilometres down the road in Thunder Bay, Ont., treated effluent is piped straight into the Kaministiquia River, which flows into Lake Superior. But instead of the wastewater hitting the river at surface level, as is the case with Blackbird Creek, this effluent pipe is 4.5 metres underwater, so the effluent cools instantly and disperses, where it’s less impactful. The much larger river can absorb the effluent with far fewer environmental impacts. It’s not perfect, but it is the best practice to satisfy a wood-fibre hungry market.

The reality is, if the Terrace Bay mill reopens, Blackbird Creek will likely die. If it doesn’t reopen, the town itself is in a tough spot.

A man walks in front of a wall with various fish and animal heads and antlers mounted on it
Jon MacDonald, a Métis hunter and angler, was raised in Terrace Bay and wants to see Blackbird Creek healthy. He’d love to see the environment clean in the next 30 years. He’d love to see trout swim in the pools again, but people need jobs and young people shouldn’t have to leave the region to find them, he says.
A picture of a mountain lion hangs on a white wall with hide tassels and feathers hanging from a ceremonial pipe above it
“It’s a double-edged sword,” MacDonald says of saving the mill and the environment. His own father moved to Terrace Bay to work in the pulp mill.

With sideways rain and an easterly gale pounding on the Terrace Bay Community Centre walls, Marianne Whitton and Kim St. Louis are putting together a 1,000-piece puzzle and are stumped by the intricacies. 

The two are helping run a $280,000 government-funded action centre to retool, train and help unemployed mill workers access jobs in and out of the region. Turnout has been low. Some skilled labourers were quick to snatch up available jobs, others were willing to collect employment insurance benefits and hope for the mill to reopen. As employment insurance nears its deadline for collection — just over 10 months in Ontario — former employees are starting to collect their severance pay from the mill, forfeiting their seniority and losing hope of finding employment in their hometown.

A woman looks back from a table where another woman sits working on a puzzle in an office
Kim St. Louis, left, is one of three employees at the action centre for former pulp mill workers to find new employment. St. Louis worked at the Terrace Bay pulp mill for 35 years, 25 of which she spent mainly in the sale of pulp. The price of pulp is strong right now, she says, about US$1,700 per ton (current as of January 2025), and she misses the excitement of selling the town’s mainstay product.
A woman sits at a chair in front of a desk in an office where other people sit at a table behind her
Taylor Paulsen, a former pulp foreman and environmental technologist with the AV Terrace Bay mill, is currently working at the action centre. She wants the mill to reopen. She doesn’t want to move away but knows she’ll have to if things don’t change for her hometown. “The company is not communicating. That’s what is so frustrating for people, no one can move on. Now they brought in a package boiler and everyone thinks there’s hope; people are grasping at straws for rumours.”

Rumours circulate about new investors — there’s a boiler being installed to keep the mill warm through the winter — but Aditya Birla Group, the India-based owner of the Terrace Bay mill, has offered no word to anyone, seemingly not even the township. The company did not respond to The Narwhal’s questions about plans to reopen or whether an alternate plan for discharging effluent would be in place if it did. 

The few visitors to the action centre look at the puzzle and try to help. “This is 1,000 pieces of hell,” St. Louis says, finally standing up to take a break. She worked in pulp sales, finding a home for the town’s staple product in the broad North American market. “At least I’m getting paid to work on this puzzle, but I’d rather be at work selling pulp.” Others in the action centre nod their heads.

Houses line a street in Terrace Bay, at the shore of Lake Superior, with pilons on the road marking off potholes
The town of Terrace Bay, with a population of about 1,500, sits at the shore of Lake Superior. About 400 people lost their jobs when the mill closed.

People who worked in the mill aren’t shy about its condition before it finally closed. They describe concrete falling from the ceilings, cracks in the floor and the lime kiln that was broken, creating a mountain of untreated lime they were hastily cleaning up.

In 2011, TJ Berthelot lost his life when a blow tank exploded, creating a nine-metre hole in the mill roof. AV Terrace Bay was fined $275,000 under the Occupational Health and Safety Act for the incident. Following a June 25, 2019, incident, the mill was fined $80,000 for not installing proper guards after a worker was pulled into the rollers that press the fibre sheets together. The worker was saved when another employee hit the emergency shutoff. 

The mill has also seen its share of environmental infractions. In 2015, AV Terrace Bay was fined $250,000 for not properly treating effluent discharged via Blackbird Creek into Lake Superior. In December 2020, AV Terrace Bay was fined $400,000 for releasing high levels of sulphur. The emissions were detected by two air monitoring stations in the community.

A man stands at the back of his garage with tools and equipment surrounding him and a large fluffy dog watching him
After many years trapping, Shaun Andrews of Schreiber, Ont., has observed that beavers from the “liquor line” would have a red tinge to their furs. Without effluent pumping daily into the creek, he says the beavers pelts have returned to a much more natural black colour.
Andrews recently trapped eight beavers that were damming the pulp mill’s tailings pond discharge canal. It was threatening to wash out Highway 17 if it burst. He stored them in his freezer to later sell.

The Jackfish Bay Area of Concern, which includes Blackbird Creek, was designated as “in recovery” in 2011. This recognized improvements made by the mill in the late 1980s and early 1990s, including installing a secondary treatment system for effluent and moving to chlorine-free pulp production. 

Importantly, the mill was shuttered when the area was deemed “in recovery,” and the plan was to revisit the designation should it reopen. The mill did reopen three years later, but the designation remained.

The review committee, along with several government bodies, acknowledged in the remedial action plan status report that some of the area “may not recover while industrial effluent is discharged,” but concluded “further remedial actions are not practical or feasible at this time.” 

What “in recovery” status means, practically, is that environmental monitoring will continue, but no interventions to help the environment are being explored or considered. And the designation could still be reviewed.

The mill will either reopen or it won’t, and the chips will fall where they may.

Known as the Jackfish Bend, the Canadian Pacific Railway makes a tight arc around the northern edge of Jackfish Bay, where Blackbird Creek flows into Lake Superior.
Aerial view of Jackfish Bay on Lake Superior with a railway wrapping around the shore bend and silty water flowing into turquoise
Aerial view of Jackfish Bay on Lake Superior with a railway wrapping around the shore bend and silty water flowing into turquoise
Much of the creek is only accessible by foot, so Stewart and Hollinger boat and hike in to take samples.
A golden tamarack in the fore ground with two men walking through the bush behind it

As nature continues to rebound, clean sediments will wash down Blackbird Creek and cap the contamination. And it would remain there if not for hundred-year storms, for floods, for beaver dams and the power of nature that upends even its own remedies. 

Stewart and Hollinger will be back to monitor any shifts in the environment, and to introduce a new group of students to the history of sanctioned pollution in these waters, with its future still uncertain.

All that is known right now is in northwestern Ontario, an industry is dying, a town is suffering — and Blackbird Creek has a new lease on life. 

Water pools on the ground under cloudy grey skies outside a building with a sign for "Terrace Bay"
The pulp mill has long been the economic driver of Terrace Bay, but the small northwestern Ontario town now faces a future in the wake of industry, as nature slowly erases that past. Maybe the industry will return — or maybe not.

Another year of keeping a close watch
Here at The Narwhal, we don’t use profit, awards or pageviews to measure success. The thing that matters most is real-world impact — evidence that our reporting influenced citizens to hold power to account and pushed policymakers to do better.

And in 2024, our stories were raised in parliaments across the country and cited by citizens in their petitions and letters to politicians.

In Alberta, our reporting revealed Premier Danielle Smith made false statements about the controversial renewables pause. In Manitoba, we proved that officials failed to formally inspect a leaky pipeline for years. And our investigations on a leaked recording of TC Energy executives were called “the most important Canadian political story of the year.”

We’d like to thank you for paying attention. And if you’re able to donate anything at all to help us keep doing this work in 2025 — which will bring a whole lot we can’t predict — thank you so very much.

Will you help us hold the powerful accountable in the year to come by giving what you can today?
Another year of keeping a close watch
Here at The Narwhal, we don’t use profit, awards or pageviews to measure success. The thing that matters most is real-world impact — evidence that our reporting influenced citizens to hold power to account and pushed policymakers to do better.

And in 2024, our stories were raised in parliaments across the country and cited by citizens in their petitions and letters to politicians.

In Alberta, our reporting revealed Premier Danielle Smith made false statements about the controversial renewables pause. In Manitoba, we proved that officials failed to formally inspect a leaky pipeline for years. And our investigations on a leaked recording of TC Energy executives were called “the most important Canadian political story of the year.”

We’d like to thank you for paying attention. And if you’re able to donate anything at all to help us keep doing this work in 2025 — which will bring a whole lot we can’t predict — thank you so very much.

Will you help us hold the powerful accountable in the year to come by giving what you can today?

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