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Woburn Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

lake

pH Level

7.4

neutral = 7.0

Lead

0.003 mg/L

✓ Below action level

TDS

215.1 mg/L

Est. Daily Cost

$0.40

energy & soap waste

Source: Health Canada Water Quality · Updated 2026

hard~120–179 mg/LHard · est.

0–60

mg/L

Soft

61–120

mg/L

Moderately Hard

121–180

mg/L

Hard

180+

mg/L

Very Hard

Appliance Damage Report

In Woburn, your appliances are currently losing 20% efficiency due to mineral buildup.

ApplianceIn WoburnSoft Water CityEfficiency Loss
Kettle
6.8 yrs
8.5 yrs-20%
Washing Machine
9.6 yrs
12 yrs-20%
Water Heater
12 yrs
15 yrs-20%

Regional Water Comparison

How Woburn compares to its nearest neighbours

CityHardnessMineralizationRisk
Woburn, Ontario≈ 120–179 mg/LHigh🟠 Hard
Bendale, Ontario≈ 120–179 mg/LHigh🟠 Hard
Scarborough Village, Ontario≈ 120–179 mg/LHigh🟠 Hard
Morningside, Ontario≈ 180+ mg/LVery High🔴 Very Hard
Eglinton East, Ontario≈ 60–120 mg/LHigh🟡 Moderately Hard

National Benchmark

How Woburn compares to the Canada average

BenchmarkHardnessAppliance Risk
Woburn≈ 120–179 mg/L🟠 Moderate
Canada National Avg140 mg/L🟠 Moderate
Vancouver Top Rated3 mg/L🟢 None

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What Makes Woburn's Water Unique?

Local geology and source profile

Source: LakeTDS: 215.1 mg/LpH: 7.4

Woburn, Ontario's water supply comes from a mix of groundwater wells and treated surface water, likely from Lake Ontario or regional reservoirs, depending on the specific service provider which could be the Township of Woburn or a regional authority like the Region of Waterloo or Halton Region. Water undergoes treatment at facilities such as the Woburn Water Treatment Plant or shared regional plants. These processes involve filtration, chlorination, and fluoridation to meet provincial drinking water standards, drawing from the Lake Ontario watershed and aquifers along the Niagara Escarpment.

The region's water originates from the Georgian Bay and Lindsay Formations, which are part of the Ordovician and Silurian periods. These underground layers consist of limestone and dolomite, rocks rich in calcium and magnesium. As groundwater flows through these carbonate formations, these minerals dissolve, making the water naturally hard. Surface water runoff from the Niagara Escarpment, which also features limestone, contributes further mineral content to the supply before it reaches treatment facilities.

Homeowners in Woburn often notice limescale buildup in appliances like kettles, water heaters, and dishwashers, which can decrease their efficiency and shorten their lifespan. Soap scum can make laundry feel less clean and affect your skin. To combat these issues, regular descaling with vinegar, installing scale-inhibiting filters, or investing in a whole-house water softener are practical solutions for protecting your plumbing and improving daily water use. Despite the hardness, the treated water consistently meets provincial safety standards, with typical pH levels between 7.2 and 8.0.

Geology & Source: Southern Ontario Paleozoic bedrock; Ordovician and Silurian limestone and dolomite formations; carbonate-rich rocks cause high hardness

Other Ontario Water Reports

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Frequently Asked Questions

Is Woburn's water safe to drink?
Yes. Woburn's water meets all federal safety standards. The hardness is ≈ 120–179 mg/L (Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Woburn?
At ≈ 120–179 mg/L (Hard), Woburn's water will cause significant limescale on kettles, washing machines, and water heaters. A water softener or descaler is strongly recommended to extend appliance lifespan and reduce energy bills by up to 20%.
How does Woburn compare to the Canada average?
The Canada national average is 140 mg/L. Woburn (≈ 120–179 mg/L) is 10 mg/L above the national average. The softest major city is Vancouver at just 3 mg/L.