Water hardness in Jurupa Valley
9.5 gpg hard
Tap water in Jurupa Valley is hard: 9.5 gpg (162 mg/L · 9.1 °dH · 16.2 °fH).
Source: JCSD 2025 Annual Water Quality Report (CCR) (2025) · data checked 2026-10-19
Range across supply zones: 25–220 mg/L.
The figure is for the Jurupa Community Services District, which serves part of Jurupa Valley while other agencies serve the rest. Its 2025 report lists total hardness (CaCO3) at an average of 162 mg/L (9.5 gpg), with a range of 25 to 220 mg/L. We did not check for zone differences. That is hard on average, so expect visible scale on kettles and heaters.
USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
Water data
| Total hardness | 9.5 gpg |
|---|---|
| Utility | Jurupa Community Services District (JCSD) |
How Jurupa Valley compares
- Tap water in Jurupa Valley is close to the median of the 1372 cities we track in the United States (9.1 gpg).
- By hardness it ranks 653 of 1372 in the United States (1 = hardest); 52 % of these cities have softer water.
- In California it is number 167 of 336 cities; the regional median is 9.5 gpg.
- Nearest city with clearly softer water: Rancho Cucamonga, 17 km away (7.3 gpg).
- Nearest city with clearly harder water: Norco, 10 km away (12.3 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 Jurupa Valley
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 9 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S1 |
| 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 Jurupa Valley water hard or soft?
It is hard: 162 mg/L as CaCO₃ (9.5 gpg, 9.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Jurupa Valley 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 Jurupa Valley water?
9.5 gpg, equal to 9.1 °dH, 16.2 °fH or 162 mg/L calcium carbonate.
What dishwasher salt setting should I use in Jurupa Valley?
For 162 mg/L (9.1 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Jurupa Valley?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: JCSD 2025 Annual Water Quality Report (CCR) (2025). Method: figure published by the water supplier. JCSD 2025 Annual Water Quality Report (CCR) · Outdated figure? Tell us