Water hardness in Loyalist
Loyalist, Ontario tap water is moderately hard, drawn from lake ontario (fairfield and bath drinking water systems). Here is what it means at home, and the source.
What this means at home
Some kettle and showerhead scale over time, but most homes get by without a softener.
Loyalist Township operates two Lake Ontario surface water systems. The 2023 annual report lists hardness values of 116, 117 and 118 mg/L as CaCO3; the midpoint is used as a representative value.
You likely do not need a softener. A quick test kit confirms it for your own tap.
New to this? Read hard water, explained, including whether it is safe to drink and how to test your tap.
The number, in real terms
At 116-118 mg/L as CaCO3 mg/L (6.8 to 6.9 grains per gallon), a four-person Loyalist household puts only about 2,053 grains of hardness a day through its plumbing (industry sizing convention: about 300 US gallons a day). That is a light enough load that most homes skip the softener and just descale the kettle now and then.
Scale ceiling: every 1,000 litres heated can leave at most 117 grams of scale, because that is the total mineral carried at 116-118 mg/L as CaCO3 mg/L. Real kettles and water heaters precipitate a fraction of that, but the ceiling scales with the number: Loyalist's moderately hard water leaves little behind.
How this is calculated: grains per gallon = mg/L divided by 17.1; daily grain load = gpg x 300 US gallons (the softener trade sizes in US gallons, four-person household); regeneration interval = 32,000 grains divided by the daily load; scale ceiling = mg/L carried per 1,000 L. The input figure is Loyalist Township - Drinking Water Systems 2023 Annual Report's own published number, checked 2026-07-03. Full method on the methodology page.
Loyalist water hardness questions
How hard is the water in Loyalist?
Loyalist's tap water is moderately hard, about 116-118 mg/L as CaCO3 mg/L as calcium carbonate (6.8 to 6.9 grains per gallon), drawn from lake ontario (fairfield and bath drinking water systems). Figure from Loyalist Township - Drinking Water Systems 2023 Annual Report, last checked 2026-07-03.
Do I need a water softener in Loyalist?
Probably not. Loyalist water is moderately hard, so most homes get by without one. A simple test kit settles it if you are unsure.
How does Loyalist compare with nearby towns?
Closest verified figures: St. Thomas at 116 mg/L as CaCO3 mg/L, Greater Napanee at about 120 mg/L as CaCO3 mg/L, Hamilton at about 120 mg/L. Loyalist sits at 116-118 mg/L as CaCO3 mg/L, all measured as calcium carbonate.
Source
Source: Loyalist Township - Drinking Water Systems 2023 Annual Report, last checked 2026-07-03. Hardness varies by neighbourhood, season, and which well or plant serves your street, especially on groundwater systems. These are the municipal published figures as of the verified date, good for planning, not a substitute for a home test or your utility's current report.
Compare nearby verified figures: St. Thomas (116 mg/L as CaCO3 mg/L), Greater Napanee (about 120 mg/L as CaCO3 mg/L), Hamilton (about 120 mg/L). Or see every municipality.