Water hardness in Springfield
8 gpg hard
Tap water in Springfield is hard: 8 gpg (137 mg/L · 7.7 °dH · 13.7 °fH).
Source: City Utilities of Springfield 2025 Water Quality Report (2025) · data checked 2026-10-19
Range across supply zones: 74–206 mg/L.
City Utilities of Springfield reports an average hardness of 137.3 mg/L (8.0 gpg) in its 2025 report, with a range of 73.8 to 205.8 mg/L. The table is citywide and is not split by treatment plant. The water is hard, and the wide range means scale will vary through the year.
USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
Water data
| Total hardness | 8 gpg |
|---|---|
| Utility | City Utilities of Springfield |
How Springfield compares
- Tap water in Springfield is 11 % softer than the median of the 1372 cities we track in the United States (9.1 gpg).
- By hardness it ranks 790 of 1372 in the United States (1 = hardest); 42 % of these cities have softer water.
- In Missouri it is number 23 of 32 cities; the regional median is 10.3 gpg.
- Nearest city with clearly softer water: Rogers, 122 km away (4.4 gpg).
- Nearest city with clearly harder water: Saddlebrooke, 43 km away (13.4 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 Springfield
| Brand | Setting for this water |
|---|---|
| Bosch | H01 |
| Miele | 8 °dH |
| AEG / Electrolux | 2 |
| Beko | 2nd |
| 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 Springfield water hard or soft?
It is hard: 137 mg/L as CaCO₃ (8 gpg, 7.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Springfield 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 Springfield water?
8 gpg, equal to 7.7 °dH, 13.7 °fH or 137 mg/L calcium carbonate.
What dishwasher salt setting should I use in Springfield?
For 137 mg/L (7.7 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Springfield?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: City Utilities of Springfield 2025 Water Quality Report (2025). Method: figure published by the water supplier. City Utilities of Springfield 2025 Water Quality Report · Outdated figure? Tell us