Greenfield Park Water Hardness & Quality Report (2026)
Water Hardness
Source
river
pH Level
7.5
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
174.2 mg/L
Est. Daily Cost
$0.24
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 Greenfield Park, your appliances are currently losing 12% efficiency due to mineral buildup.
| Appliance | In Greenfield Park | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.6 yrs | 8.5 yrs | -22% |
| Washing Machine | 10.3 yrs | 12 yrs | -14% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Greenfield Park compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Greenfield Park, Quebec | 90.5 mg/L | Medium | 🟡 Moderately Hard |
| Laflèche, Quebec | 70.5 mg/L | Medium | 🟡 Moderately Hard |
| Longueuil, Quebec | 115 mg/L | Medium | 🟡 Moderately Hard |
| Brossard, Quebec | 99.5 mg/L | Medium | 🟡 Moderately Hard |
| Saint-Hubert, Quebec | 75.5 mg/L | Medium | 🟡 Moderately Hard |
National Benchmark
How Greenfield Park compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Greenfield Park | 90.5 mg/L | 🟡 Low |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
Bring Vancouver-quality water to your Greenfield Park home
Shop water softeners on Amazon.com →
What Makes Greenfield Park's Water Unique?
Local geology and source profile
Greenfield Park's drinking water is managed through the Ville de Longueuil agglomeration, drawing from a local river or St. Lawrence tributary source on the south shore of the Montreal Island — Greenfield Park is a predominantly English-speaking community within the Longueuil agglomeration (technically part of the city of Saint-Lambert until amalgamation), on the south shore of the St. Lawrence east of the Victoria Bridge, a historic anglophone enclave in the broader Montérégie suburb corridor. Water undergoes coagulation, sedimentation, filtration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) requirements. Hardness measures 90.5 mg/L (5.3 gpg) — classified as moderately hard by Health Canada, consistent with the moderately hard character of the eastern Longueuil–south shore Montérégie supply.
Greenfield Park's 90.5 mg/L is on the moderate end of the Montérégie south shore supply range (84–125 mg/L) — softer than Sainte-Catherine (128 mg/L) but harder than the DesBaillets-supplied Montréal west zones (65–73 mg/L). The specific river or local source supplying the Greenfield Park sub-zone within the Longueuil agglomeration draws from the mixed Ordovician–Devonian carbonate and Champlain Sea clay terrain of the south St. Lawrence shore, producing the moderately hard 90.5 mg/L supply.
At 90.5 mg/L, Greenfield Park homes experience light to moderate scale deposits — cleaning every two months is adequate. Hot water tanks have a reliable operational lifespan. Water quality information is published following Ministère de l'Environnement standards. Health Canada lead precautionary guidance applies to older pre-1975 residential properties in the established Greenfield Park anglophone residential streets.
Geology & Source: Supplied by the Ville de Longueuil agglomeration from a local south shore Montérégie river or St. Lawrence source — the Greenfield Park supply from the eastern Longueuil corridor produces moderately hard water at 90.5 mg/L (5.3 gpg).