Water hardness in West Valley City
10.3 gpg hard
Tap water in West Valley City is hard: 10.3 gpg (176 mg/L · 9.9 °dH · 17.6 °fH).
Source: Granger-Hunter Improvement District Annual Water Quality Report (2025 data) (2025) · data checked 2026-10-23
Most of West Valley City is served by the Granger-Hunter Improvement District, which buys about three-quarters of its water from Jordan Valley Water Conservancy District (Provo River reservoirs) and pumps the rest from its own wells. Valley groundwater is hard, and the blend is 176 mg/L CaCO₃. Other districts serve parts of the city, so check your own provider.
USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
Water data
| Total hardness | 10.3 gpg |
|---|---|
| Utility | Granger-Hunter Improvement District (GHID) |
How West Valley City compares
- Tap water in West Valley City is 14 % harder than the median of the 1372 cities we track in the United States (9.1 gpg).
- By hardness it ranks 607 of 1372 in the United States (1 = hardest); 56 % of these cities have softer water.
- In Utah it is number 9 of 14 cities; the regional median is 10.9 gpg.
- Nearest city with clearly harder water: Herriman, 22 km away (37.5 gpg).
Ranking of the hardest and softest water in the United States →
What it means at home
- Fast scale on taps, shower screens and kettle; white spots on glassware.
- Water heater: efficiency loss and element failures within years if unprotected.
- Dry skin and dull hair after showering are common.
- Softener recommended; jug or reverse osmosis for drinking.
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 West Valley City
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 10 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S2 |
| LG | H2 |
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 West Valley City water hard or soft?
It is hard: 176 mg/L as CaCO₃ (10.3 gpg, 9.9 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in West Valley City 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 West Valley City water?
10.3 gpg, equal to 9.9 °dH, 17.6 °fH or 176 mg/L calcium carbonate.
What dishwasher salt setting should I use in West Valley City?
For 176 mg/L (9.9 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in West Valley City?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Granger-Hunter Improvement District Annual Water Quality Report (2025 data) (2025). Method: figure published by the water supplier. Granger-Hunter Improvement District Annual Water Quality Report (2025 data) · Outdated figure? Tell us