Port Hope Water Hardness & Quality Report (2026)
Water Hardness
Source
lake
pH Level
8.4
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
704.3 mg/L
Est. Daily Cost
$0.69
energy & soap waste
Source: Health Canada Water Quality · Updated 2026
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 Port Hope, your appliances are currently losing 34% efficiency due to mineral buildup.
| Appliance | In Port Hope | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 4.1 yrs | 12 yrs | -66% |
| Water Heater | 5.3 yrs | 15 yrs | -65% |
Regional Water Comparison
How Port Hope compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Port Hope, Ontario | 258 mg/L | Very High | 🔴 Very Hard |
| Cobourg, Ontario | 183.5 mg/L | High | 🔴 Very Hard |
| Peterborough, Ontario | 95 mg/L | Medium | 🟡 Moderately Hard |
| Bowmanville, Ontario | 201 mg/L | Very High | 🔴 Very Hard |
| Oshawa, Ontario | 115 mg/L | Medium | 🟡 Moderately Hard |
National Benchmark
How Port Hope compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Port Hope | 258 mg/L | 🔴 High |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
Bring Vancouver-quality water to your Port Hope home
Shop water softeners on Amazon.com →
What Makes Port Hope's Water Unique?
Local geology and source profile
Port Hope's drinking water is managed by the Municipality of Port Hope, drawing from Lake Ontario via a local shoreline intake at the mouth of the Ganaraska River — Port Hope is a spectacularly well-preserved 19th-century heritage town on Lake Ontario in Northumberland County, the 'Crown Jewel of Heritage Conservation in Canada' with one of the best-preserved Victorian main streets in North America on Walton Street, the Gothic Revival Trinity United Church, and the Capitol Theatre on Queen Street; also the site of the Port Hope radioactive waste cleanup (the Port Hope Area Initiative) remediating former Radium and uranium refining waste from the historic Eldorado Nuclear plant (now Cameco Corporation). Water undergoes coagulation, sedimentation, filtration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) requirements. Hardness measures 258 mg/L (15.1 gpg) — classified as very hard by Health Canada, with TDS of 704.3 mg/L — notably harder than the typical eastern Lake Ontario supply range (169–213 mg/L from reference data).
Port Hope's 258 mg/L with TDS 704.3 mg/L reflects the locally higher dissolved mineral content at the Northumberland County Lake Ontario shoreline near the Ganaraska River mouth — the Ganaraska River drains the Northumberland Hills through Ordovician limestone and dolostone terrain (the Lindsay and Trenton Formations), carrying dissolved carbonate into Lake Ontario near the Port Hope intake and elevating the local hardness above the broader eastern Lake Ontario range. The notably elevated TDS confirms significant calcium, magnesium, and sulphate mineral loading at this specific Lake Ontario intake location.
At 258 mg/L, Port Hope homeowners face persistent scale challenges in the heritage town's Victorian and Edwardian housing stock — monthly to bimonthly kettle and showerhead descaling is typical. The elevated lead level (0.006 mg/L) warrants particular attention in Port Hope's pre-war residential heritage buildings. The Municipality of Port Hope provides water quality information at porthope.ca. Health Canada lead service line precautionary guidance strongly applies to pre-1975 properties in the historic downtown Walton Street and hill-district heritage homes.
Geology & Source: Supplied by the Municipality of Port Hope from Lake Ontario via a local shoreline intake on the Northumberland County Lake Ontario shore — the Port Hope supply records very hard water at 258 mg/L (15.1 gpg), with TDS of 704.3 mg/L, notably harder than the typical eastern Lake Ontario municipal supply range.