What's in Pickering's drinking water?
Most of Pickering gets Lake Ontario water from the Ajax Water Supply Plant, part of the connected Oshawa/Whitby/Ajax system.
- Chlorine: free chlorine in the distribution system ranged 0.16 to 5.00 mg/L (Ajax system) in 2025. That's what keeps the water safe in the pipes, and what most people taste.
- Fluoride: added (0.12 to 0.85 mg/L at the Ajax plant in 2025). If you'd rather drink unfluoridated water, reverse osmosis removes most of it.
- Sodium: 16.7 to 20.9 mg/L (Ajax plant).
- Lead: Ajax-system plumbing samples ranged from non-detect to 0.0018 mg/L in 2025, under the 0.01 mg/L limit.
Source: Region of Durham, Oshawa/Whitby/Ajax Drinking Water System 2025 Annual Report.
Why reverse osmosis
A reverse osmosis system under your kitchen sink removes chlorine taste, most dissolved solids, lead, fluoride and sodium from drinking and cooking water. It's bottled-quality water from its own faucet, without carrying cases home.
- Better-tasting water, coffee, tea and ice
- Removes most dissolved solids, lead and fluoride
- Fits under the sink with its own faucet
- Usually costs less than buying bottled water
Spending on bottled water? Our bottled water cost calculator shows your yearly cost.
Reverse osmosis systems for Pickering homes

Standard RO
2, 4 or 5-stage drinking water systems, with a bonus alkaline cartridge on the 5-stage.
See Standard RO
Big Flow RO
Tankless 400 GPD reverse osmosis with a 1:1 waste ratio for bigger households.
See Big Flow ROOn a private well? RO makes great drinking water from well water too, but pair it with UV disinfection if your well isn't treated. See well water treatment in Pickering.
Reverse osmosis in nearby towns
Questions
Is Pickering tap water safe to drink?
Yes. It's treated and tested under Ontario's drinking water standards. People add reverse osmosis for taste, chlorine, fluoride or sodium, not because the water is unsafe.
Does reverse osmosis remove fluoride?
Yes, reverse osmosis removes most fluoride along with other dissolved solids.
What warranty comes with RO?
Our reverse osmosis systems carry a 3-year warranty, with free installation.
Free in-home water test
Find out what's in your Pickering 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
