Water hardness in Little Elm
7 gpg hard
Tap water in Little Elm is hard: 7 gpg (120 mg/L · 6.7 °dH · 12 °fH).
Source: North Texas Municipal Water District, 2025 Water Quality Report (Consumer Confidence Report) (2025) · data checked 2026-10-23
Range across supply zones: 96–144 mg/L.
2 supply zones — hardness varies by neighbourhood; the figure above is the median.
Little Elm buys treated surface water from North Texas Municipal Water District, which draws on reservoirs such as Lavon Lake and Lake Texoma. The town reports 2 supply zones, from 96 to 144 mg/L CaCO₃, with a median of 120 mg/L. Moderate scale in kettles and heaters.
USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
Water data
| Total hardness | 7 gpg |
|---|---|
| Utility | Town of Little Elm (buys treated surface water from North Texas Municipal Water District) |
How Little Elm compares
- Tap water in Little Elm is 23 % softer than the median of the 1372 cities we track in the United States (9.1 gpg).
- By hardness it ranks 884 of 1372 in the United States (1 = hardest); 34 % of these cities have softer water.
- In Texas it is number 44 of 60 cities; the regional median is 8.6 gpg.
- Nearest city with clearly harder water: Grand Prairie, 47 km away (9.9 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 Little Elm
| Brand | Setting for this water |
|---|---|
| Bosch | H01 |
| Miele | 7 °dH |
| AEG / Electrolux | 2 |
| Beko | 2nd |
| Hoover | S1 |
| LG | H1 |
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 Little Elm water hard or soft?
It is hard: 120 mg/L as CaCO₃ (7 gpg, 6.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Little Elm 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 Little Elm water?
7 gpg, equal to 6.7 °dH, 12 °fH or 120 mg/L calcium carbonate.
What dishwasher salt setting should I use in Little Elm?
For 120 mg/L (6.7 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Little Elm?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: North Texas Municipal Water District, 2025 Water Quality Report (Consumer Confidence Report) (2025). Method: computed from supplier's calcium and magnesium. North Texas Municipal Water District, 2025 Water Quality Report (Consumer Confidence Report) · Outdated figure? Tell us