Markland Wood Water Hardness & Quality Report (2026)
Water Hardness
Source
lake
pH Level
7.9
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
452.6 mg/L
Est. Daily Cost
$0.53
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 Markland Wood, your appliances are currently losing 27% efficiency due to mineral buildup.
| Appliance | In Markland Wood | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3 yrs | 8.5 yrs | -65% |
| Washing Machine | 6.2 yrs | 12 yrs | -48% |
| Water Heater | 7.6 yrs | 15 yrs | -49% |
Regional Water Comparison
How Markland Wood compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Markland Wood, Ontario | 199 mg/L | Very High | 🔴 Very Hard |
| Etobicoke, Ontario | 190 mg/L | Very High | 🔴 Very Hard |
| Etobicoke West Mall, Ontario | 190 mg/L | Very High | 🔴 Very Hard |
| Eringate-Centennial-West Deane, Ontario | 238 mg/L | Very High | 🔴 Very Hard |
| Islington-City Centre West, Ontario | 238.5 mg/L | Very High | 🔴 Very Hard |
National Benchmark
How Markland Wood compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Markland Wood | 199 mg/L | 🔴 High |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Markland Wood's Water Unique?
Local geology and source profile
Markland Wood (a prestigious southwest Etobicoke residential neighbourhood of 1950s–1960s mid-century modern homes — the Markland Drive and Aukland Road corridor in southwest Etobicoke, one of Etobicoke's most desirable post-war residential enclaves featuring ranch-style bungalows and split-levels on large lots adjacent to the Islington Golf Club, the Markland Wood Golf and Country Club, and the protected ravine and creek corridors of the Etobicoke Creek watershed, a community of large properties and mature trees in the southwest Etobicoke residential park landscape) receives its drinking water from the City of Toronto, drawing from Lake Ontario via the F.J. Horgan Water Treatment Plant. Water is treated using ozonation, biofiltration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) standards. Hardness is 199 mg/L (11.6 gpg) — classified as very hard by Health Canada, in the anomalously softer southwest Etobicoke sub-zone range.
Markland Wood is in the southwest Etobicoke anomalously softer zone — at 199 mg/L, it is essentially identical to Alderwood (200 mg/L from batch 32) in the same southwest Etobicoke corridor, where a specific F.J. Horgan distribution pipeline branch consistently delivers softer supply than the standard Toronto range (229–246 mg/L). This is consistent with the broader southwest Etobicoke anomaly (Etobicoke West Mall 190 mg/L, Alderwood 200 mg/L, Humber Summit 173 mg/L from batches 32 and 31), reflecting a distinct distribution supply branch in the southwest Etobicoke distribution network.
At 199 mg/L, Markland Wood homeowners still face persistent scale challenges — monthly to bimonthly kettle and showerhead descaling is typical. The City of Toronto provides water quality information at toronto.ca/water. Health Canada lead service line precautionary guidance applies to the neighbourhood's 1950s–1960s mid-century housing stock for pre-1975 properties in the established Markland Wood residential area.
Geology & Source: Supplied by City of Toronto from Lake Ontario via the F.J. Horgan Water Treatment Plant — the Markland Wood southwest Etobicoke distribution zone carries very hard water at 199 mg/L (11.6 gpg), in the anomalously softer southwest Etobicoke sub-zone range.