Water hardness in East Palo Alto
2 gpg soft
Tap water in East Palo Alto is soft: 2 gpg (34 mg/L · 1.9 °dH · 3.4 °fH).
Source: City of East Palo Alto 2021 Annual Water Quality Report (2021) · data checked 2026-11-02
Range across supply zones: 8–60 mg/L.
This figure is over 3 years old; hardness may have changed.
East Palo Alto's water comes from the SFPUC and is operated by Veolia. The city's 2021 report gives a median of 34 mg/L as CaCO₃, ranging from 7.7 to 60 mg/L. That is soft water, but the report is several years old, so check for a newer one. Scale is minimal.
USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
Water data
| Total hardness | 2 gpg |
|---|---|
| Utility | City of East Palo Alto Water (SFPUC supply, Veolia operated) |
How East Palo Alto compares
- Tap water in East Palo Alto is 78 % softer than the median of the 1372 cities we track in the United States (9.1 gpg).
- By hardness it ranks 1259 of 1372 in the United States (1 = hardest); 8 % of these cities have softer water.
- In California it is number 311 of 336 cities; the regional median is 9.5 gpg.
Ranking of the hardest and softest water in the United States →
What it means at home
- Little or no limescale in kettles, water heaters or washing machines.
- Soap lathers easily; water does not dry skin or hair.
- Dishwasher: salt setting at minimum or off.
- No softener needed; a jug filter only changes taste.
How much salt will you use for softening?
No. Water this soft does not need softening.
Descale a coffee machine or kettle about every 6 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in East Palo Alto
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 2 °dH |
| AEG / Electrolux | 1 |
| Beko | 1st |
| Hoover | S0 |
| LG | H0 |
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 East Palo Alto water hard or soft?
It is soft: 34 mg/L as CaCO₃ (2 gpg, 1.9 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in East Palo Alto 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 East Palo Alto water?
2 gpg, equal to 1.9 °dH, 3.4 °fH or 34 mg/L calcium carbonate.
What dishwasher salt setting should I use in East Palo Alto?
For 34 mg/L (1.9 °dH) check your manufacturer's table: level 0–1, usually no salt.
Do I need a water softener in East Palo Alto?
No. With soft water a softener adds nothing.
Source
Source: City of East Palo Alto 2021 Annual Water Quality Report (2021). Method: figure published by the water supplier. City of East Palo Alto 2021 Annual Water Quality Report · Outdated figure? Tell us