Water hardness in Ozark
0.5 gpg soft
Tap water in Ozark is soft: 0.5 gpg (9 mg/L · 0.5 °dH · 0.9 °fH).
Source: Alabama Drinking Water Watch, chemical sample results, system AL0000441 (2025-12) · data checked 2026-10-19
Range across supply zones: 6–15 mg/L.
The figure is for the Ozark Utilities Board, from Alabama's Drinking Water Watch portal. The median of 8 samples taken in 2025 is 9.3 mg/L as CaCO3 (0.5 gpg), with a range of 6.4 to 14.7 mg/L. This is very soft water. Scale is negligible, and a softener adds nothing for hardness.
USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
Water data
| Total hardness | 0.5 gpg |
|---|---|
| Utility | Ozark Utilities Board |
How Ozark compares
- Tap water in Ozark is 94 % softer than the median of the 1372 cities we track in the United States (9.1 gpg).
- By hardness it ranks 1364 of 1372 in the United States (1 = hardest); 1 % of these cities have softer water.
- In Alabama it is number 16 of 17 cities; the regional median is 4.6 gpg.
- Nearest city with clearly harder water: Montgomery, 119 km away (2.4 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 Ozark
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 1 °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 Ozark water hard or soft?
It is soft: 9 mg/L as CaCO₃ (0.5 gpg, 0.5 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Ozark 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 Ozark water?
0.5 gpg, equal to 0.5 °dH, 0.9 °fH or 9 mg/L calcium carbonate.
What dishwasher salt setting should I use in Ozark?
For 9 mg/L (0.5 °dH) check your manufacturer's table: level 0–1, usually no salt.
Do I need a water softener in Ozark?
No. With soft water a softener adds nothing.
Source
Source: Alabama Drinking Water Watch, chemical sample results, system AL0000441 (2025-12). Method: own measurement. Alabama Drinking Water Watch, chemical sample results, system AL0000441 · Outdated figure? Tell us