Water Hardness Atlas ZIP / postcode

Water hardness in Lyndon

7.6 gpg hard

Tap water in Lyndon is hard: 7.6 gpg (130 mg/L · 7.3 °dH · 13 °fH).

<6060–120120–180>180 mg/L

Source: City of Lyndon 2026 Consumer Confidence Report (calendar year 2025 data) (2025) · data checked 2026-11-03

Lyndon does not treat its own water. It buys finished water from Public Wholesale WSD 12, so the 130 mg/L (7.6 gpg) in its 2025 report describes the wholesale supply, not a measurement taken in the city's own system. The water is hard but not very hard. Pipes inside homes can add small differences the report does not capture.

USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.

Water data

Total hardness7.6 gpg
UtilityCity of Lyndon (buys finished water from PUBLIC WHOLESALE WSD 12)

How Lyndon compares

Ranking of the hardest and softest water in the United States →

What it means at home

How much salt will you use for softening?

Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.

Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).

Estimates for planning, not a quote. Check your appliance manual for exact settings.

Dishwasher setting in Lyndon

BrandSetting for this water
BoschH01
Miele7 °dH
AEG / Electrolux2
Beko2nd
HooverS1
LGH2

From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →

FAQ

Is Lyndon water hard or soft?

It is hard: 130 mg/L as CaCO₃ (7.6 gpg, 7.3 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.

Is tap water in Lyndon safe to drink?

Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.

How many grains per gallon is Lyndon water?

7.6 gpg, equal to 7.3 °dH, 13 °fH or 130 mg/L calcium carbonate.

What dishwasher salt setting should I use in Lyndon?

For 130 mg/L (7.3 °dH) check your manufacturer's table: level 4–5.

Do I need a water softener in Lyndon?

Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.

Source

Source: City of Lyndon 2026 Consumer Confidence Report (calendar year 2025 data) (2025). Method: figure published by the water supplier. City of Lyndon 2026 Consumer Confidence Report (calendar year 2025 data) · Outdated figure? Tell us

Report an outdated or wrong figure