Water hardness in Culver City
11.9 gpg very hard
Tap water in Culver City is very hard: 11.9 gpg (203 mg/L · 11.4 °dH · 20.3 °fH).
Source: Golden State Water – Culver City 2025 CCR (Spanish) (2025) · data checked 2026-11-02
Range across supply zones: 137–280 mg/L.
Culver City is served by Golden State Water Company. The 2025 report gives an average of 203 mg/L as CaCO3, ranging from 137 to 280 mg/L, which is very hard on average. Scale on kettles, showerheads and water heaters is common. The range means results vary with the source blend.
USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
Water data
| Total hardness | 11.9 gpg |
|---|---|
| Utility | Golden State Water Company – Culver City system |
How Culver City compares
- Tap water in Culver City is 31 % harder than the median of the 1372 cities we track in the United States (9.1 gpg).
- By hardness it ranks 519 of 1372 in the United States (1 = hardest); 62 % of these cities have softer water.
- In California it is number 120 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
- Severe scale: heater elements and washing-machine heaters fail early.
- Detergent use is very high; taps and screens coat within days.
- Dishwasher at maximum salt setting.
- An ion-exchange softener is practically essential; RO for drinking water.
How much salt will you use for softening?
Yes. At this hardness a softener pays for itself through appliance life and detergent.
Descale a coffee machine or kettle about every 1 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Culver City
| Brand | Setting for this water |
|---|---|
| Bosch | H03 |
| Miele | 11 °dH |
| AEG / Electrolux | 3 |
| 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 Culver City water hard or soft?
It is very hard: 203 mg/L as CaCO₃ (11.9 gpg, 11.4 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Culver 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 Culver City water?
11.9 gpg, equal to 11.4 °dH, 20.3 °fH or 203 mg/L calcium carbonate.
What dishwasher salt setting should I use in Culver City?
For 203 mg/L (11.4 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Culver City?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Golden State Water – Culver City 2025 CCR (Spanish) (2025). Method: figure published by the water supplier. Golden State Water – Culver City 2025 CCR (Spanish) · Outdated figure? Tell us