Winnipeg’s Wastewater Treatment & the Red River: What You Should Know (Fall 2025)
Introduction

If you live in Winnipeg, you already know the Red River isn’t just “that body of water running through town” — it’s part of the city’s identity. People fish along it, skate near it in winter, and it all eventually flows into Lake Winnipeg. Well, this week (late September 2025) there’s some news about wastewater treatment that’s going to affect the river, and it’s worth paying attention to. Think of this as the heads-up you might get from a neighbor over coffee, not a polished press release.

How Winnipeg Treats Wastewater (Quick Version)

Here’s the deal in plain language:

The North End Wastewater Plant (NEWPCC) handles a huge chunk of the city’s sewage.

Usually, after solids are pulled out and microbes do their cleanup job, the water gets a final blast of UV light — like a giant bug zapper for germs — before heading into the Red River.

That UV doesn’t catch everything (like phosphorus or nitrogen), but it does a solid job cutting back the nasties.

That last step is the safety net, and right now, it’s about to go offline.

What’s Changing This Fall

Starting October 1, 2025, the UV system is being shut down for several months — likely until March 2026.

Why?

The plant’s getting some much-needed upgrades.

The UV gear needs to be swapped out and tested, so they can’t run it while construction’s happening.

Chlorine was considered, but nobody wanted the risk of extra chemicals ending up in the river.

What’s still happening

The rest of the plant will keep doing its thing — so it’s not a total shutdown.

Drinking water is safe. Winnipeg pulls its tap water from Shoal Lake, not the Red River.

What This Means for the River

No UV means more germs slip through. City estimates say bacteria in the outflow could triple. That’s not a small bump.

Here’s how it could play out:

People & pets: More bacteria means higher chances of tummy bugs if anyone ends up in the water. Best bet? Don’t swim, don’t splash, and don’t let the dog lap it up.

The ecosystem: Fish aren’t expected to just keel over, but extra bacteria can throw off the balance in the river and stress things out.

Adding to what’s already there: The Red River isn’t pristine to begin with — farm runoff, storm drains, even wildlife all add to the mix. This just piles on.

Heads-up signs: Expect to see warning signs along access points, about 3 km up and down from where the plant discharges.

One small silver lining: this is all happening in the colder months when fewer folks are in the river and bacteria slow down anyway.

Why the Upgrades Are Worth It

This pause is annoying now, but it’s part of something bigger. Winnipeg’s wastewater system is due for a facelift, and these upgrades should make things better in the long run.

This is just Phase 1 at the North End plant.

Once the upgrades are done, the UV system should handle germs better, even when the river’s high or weather throws curveballs.

So, short-term pain for long-term gain.

Tips for the Next Few Months

In the meantime, here are some common-sense moves:

Stay out of the river water, especially downstream from the plant.

Wash up if you or your gear touch the water.

Don’t let pets drink or swim — dogs aren’t picky, and this is not the time to let them explore.

Handle fish carefully — clean them well and cook them fully.

Watch for posted signs and actually pay attention to them.

Keep tabs on updates from the city or province.

Back the upgrades — it’s money well spent for healthier rivers down the road.

Wrapping It Up

The Red River is part of Winnipeg’s story, and right now it’s carrying a bit of extra baggage thanks to this wastewater change. It’s not the end of the world, but it does mean being smart and cautious for a few months.

So, if you’re out walking the dog along the riverbanks or thinking about casting a line before freeze-up, just remember: things are different this fall. The good news? Once the upgrades are done, the river — and everyone who relies on it — should be better off.