Water hardness by state
How hard is the water in Utah?
Tap water in Utah averages 18.2 grains per gallon (312 ppm calcium carbonate). That number determines how fast limescale coats your water heater, shower glass and appliances.
Com base em 499 medições de 313 pontos de monitoramento, 2018-03 → 2023-10.
Dureza da água por condado — Utah
Medianas das medições registradas em cada área. A dureza varia muito mais dentro de um estado do que entre estados vizinhos — é daí que vem o seu valor real.
| Condado | gpg | mg/L | Intervalo (mg/L) | Classificação |
|---|---|---|---|---|
| Washington County | 17.5 | 299 | 154–498 | Hard water |
| Salt Lake County | 28.2 | 482 | 165–657 | Very hard water |
| Wasatch County | 15.2 | 260 | 214–422 | Hard water |
| Iron County | 14.7 | 251 | 138–662 | Hard water |
| Millard County | 22.5 | 385 | 134–1140 | Very hard water |
| Tooele County | 21.2 | 362 | 134–589 | Very hard water |
| Beaver County | 15.3 | 262 | 51–547 | Hard water |
| Box Elder County | 26.6 | 455 | 196–756 | Very hard water |
| Utah County | 18.8 | 321 | 143–621 | Hard water |
| Sevier County | 20.5 | 350 | 40–505 | Very hard water |
| Cache County | 13.5 | 231 | 162–353 | Moderately hard water |
| Grand County | 15.4 | 263 | 142–604 | Hard water |
O intervalo corresponde aos percentis 10-90 das medições locais. Áreas com menos de cinco medições são omitidas em vez de estimadas.
What 18.2 gpg means in Utah
This is hard water: visible scale on fixtures within weeks, clogged shower heads, stiff laundry and a water heater working overtime. Anti-scale protection is strongly recommended.
What it does to your home
Water heater: even a thin layer of scale insulates the heating element and drives energy use up.
Appliances: dishwashers, washing machines and coffee makers scale up and fail years early.
Fixtures and skin: white spots on faucets and glass, dry skin and dull hair after every shower.
Como este valor foi obtido
Median of the site-level medians at 313 groundwater monitoring sites (wells and springs — the sources most US public systems draw from) in the USGS National Water Information System (499 individual measurements, 2018-03 → 2023-10). Each site is collapsed to one value first so that a heavily sampled location cannot skew the state figure; the range shown is the 10th-90th percentile across sites. This describes the raw water resource, not a specific municipal tap after treatment.
Water Quality Portal — USGS National Water Information System (NWIS), characteristic "Hardness, Ca, Mg"Statewide average — hardness varies by utility and season. Always verify with your local water quality report.
Frequently asked questions — Utah
Is 18.2 gpg considered hard water?
On the US scale, 0–3.5 gpg is soft, 3.5–7 gpg moderately hard, 7–10.5 gpg hard and above 10.5 gpg very hard. At 18.2 gpg (312 ppm), water in Utah is classified as Hard water.
Does Utah have a limescale problem?
Water in Utah averages 18.2 gpg — Hard water. The harder the water, the faster calcium carbonate deposits build up in water heaters, appliances and pipes. Below 3.5 gpg the risk is minimal; above 7 gpg scale becomes a running cost.
How do I find the exact water hardness at my address in Utah?
Check your utility's annual water quality report (Consumer Confidence Report) or your water bill, or use our free interactive hardness map. Hardness can vary widely between neighboring utilities in Utah.
Do I need a salt-based water softener at 18.2 gpg?
Not necessarily. Salt softeners add sodium to your water and need constant refills. LIMPEO treats limescale with an electromagnetic field — no salt, no chemicals, no maintenance — and keeps healthy minerals in your drinking water.