Private wells in Oshawa
Homes in Raglan, Columbus and the rural north of Oshawa draw their own groundwater. Nobody tests that water but you, and municipal treatment rules don't apply.
North of the lakeshore, Oshawa sits on glacial and moraine deposits. Wells here commonly bring up hard water and iron, and shallow or older wells are at higher risk of bacteria.
Free bacteria testing in Durham
Durham Region Health Department tests private well water for bacteria for free. Pick up a sample bottle and drop it off at a Region service location, including Regional Headquarters at 605 Rossland Rd. E. in Whitby and the North Office at 181 Perry St. in Port Perry. Test at least once a year, and after flooding or any change in taste, colour or smell.
That test covers bacteria only. Our free in-home test covers what it doesn't: iron, hardness, pH, dissolved solids and more.
Match the problem to the system
| What you see | Likely cause | System |
|---|---|---|
| Orange or black stains, metallic taste | Iron or manganese | Iron & Manganese Filter |
| Rotten-egg smell | Hydrogen sulphide | Iron & Manganese Filter |
| Tea-coloured water, yellow stains | Tannins | Tannin Eliminator |
| Scale, spotty dishes, dry skin | Hardness | SoftBlu softener |
| Positive bacteria test | Bacteria | UV Pro |
Well water systems for Oshawa
Iron & Manganese Filter
Birm media removes iron, manganese and the orange or black stains they leave.
See Iron & Manganese Filter
SoftBlu Water Softener
High-capacity softener that stops scale on fixtures, kettles and appliances.
See SoftBlu Water Softener
UV Pro
Ultraviolet disinfection for well water: bacteria, viruses and cysts.
See UV Pro
Tannin Eliminator
Clears tea-coloured water and yellow stains caused by tannins.
See Tannin EliminatorMost well homes need two or three of these working together. We size them from your test results and install them in the order that protects each one.
Source: Region of Durham, Oshawa/Whitby/Ajax Drinking Water System 2025 Annual Report · Durham Region private wells.
Well water treatment nearby
Questions
How often should I test my well in Oshawa?
For bacteria, at least once a year (free through Durham Region Health Department), and after flooding or any change in the water.
Do I need UV if my water looks clear?
Bacteria don't change how water looks. If your well isn't disinfected, UV is the simplest protection.
Can you treat iron and hardness together?
Yes. We usually install an iron filter ahead of the softener so the softener isn't fouled by iron.
Free in-home water test
Find out what's in your Oshawa water
We test your water at your home, show you what's in it, and recommend the system that fits.
- Free
- About 30 minutes
- No obligation