Martensville Water Is Very Hard — Here's What It Costs You Each Year

Why Is Martensville Water So Hard?

Martensville doesn’t draw a drop from its own wells. The city buys treated water from SaskWater’s Saskatoon North Potable Water Supply System, which pulls from the South Saskatchewan River. That’s surface water, not groundwater, and it changes the whole hardness story.

Here’s what happens. Rain and snowmelt run across the Canadian Prairies and into the South Saskatchewan River system. The river’s watershed cuts through sedimentary rock, glacial till, and ancient lakebed deposits left behind after the last ice age. Those deposits are loaded with calcium and magnesium compounds, mostly from limestone and dolomite that got ground up and scattered by glaciers thousands of years ago. As the water travels, it dissolves those minerals. The longer the contact and the more mineral-rich the terrain, the harder the water gets by the time it reaches the treatment plant.

The South Saskatchewan is a classic prairie river in that regard. It’s not like a mountain stream running over granite, which barely dissolves anything. This river picks up dissolved solids from the vast agricultural and glacial plains it drains. By the time Saskatoon treats and distributes it, the water measures about 10.53 GPG, or 180 ppm. That puts Martensville squarely in the “very hard” category, which the USGS defines as anything above 10.5 GPG.

Now, the treatment process itself doesn’t remove hardness. SaskWater and the City of Saskatoon focus on making the water safe, clear, and disinfected. They’re not running it through a softening process before it hits your pipes. So the calcium and magnesium that the river picked up hundreds of miles upstream are still there when the water comes out of your tap in Martensville. That’s the whole story: prairie surface water, mineral-rich glacial deposits, and no softening step in the treatment chain.

The EPA doesn’t regulate hardness as a health hazard. It’s purely an aesthetic and nuisance issue, covered under Secondary Maximum Contaminant Levels. But at 10.53 GPG, you’re not imagining the scale on your faucets or the film on your glassware. That’s hard water doing exactly what hard water does.

How Martensville Compares to Nearby Cities

Martensville sits just a few miles north of Saskatoon, and that proximity shows up in the water. Both cities draw from the same source: the South Saskatchewan River, treated and distributed through the Saskatoon North system. If you live in Martensville and have family in Saskatoon, your water is coming from the same river and going through essentially the same treatment. The hardness will be comparable, and you’d be hard-pressed to tell the difference in a blind taste test or a soap-suds test.

The bigger contrast is with towns that rely on groundwater. Communities across Saskatchewan that pump from deep aquifers often see wildly different hardness levels, depending on what formation they’re tapping. Some glacial aquifers in the region are even harder than the river water, while others, particularly those in sandier deposits, can be noticeably softer. But that’s not Martensville’s situation. You’re on the river system, and that gives you a consistent, predictable water profile year-round.

One thing worth understanding: river water hardness can shift with the seasons. Spring runoff from snowmelt can dilute mineral content, while low-flow summer months can concentrate it. Saskatoon’s treatment plant manages for safe drinking water, not for consistent hardness, so you might notice minor swings through the year. But those swings are small compared to the gap between Martensville’s very hard water and the relatively soft water some nearby communities get from different sources.

If you’re comparing Martensville to a town like Warman or Dalmeny, both of which are also in the Saskatoon orbit, the source matters more than the map. Any community hooked into the Saskatoon North system is drinking the same river water. A town on its own well, even one five miles down the road, could be a completely different hardness story. That’s the reality of prairie water supplies: the source dictates the hardness, not the distance between town limits.

How does Martensville stack up against the rest of Saskatchewan? It's very hard at 10.53 GPG — White City, Edenwold, and Emerald Park sit nearby with different numbers. See the full hardest-water ranking for context.

See where Martensville sits on the Saskatchewan water hardness map →

Want the broader explainer on what hardness actually is and how it behaves? Read hard water vs. soft water, explained.