Hard water in Pueblo West, CO
Reported by Pueblo West MD · March 2025
- CO typical
- 97 mg/L
- EPA health violations since 2016
- 3
- Softener for 3 people
- 24k grain
- Data
- Utility report
The water in Pueblo West carries roughly 169 mg/L of dissolved calcium and magnesium, or 9.9 grains per gallon. That is hard water. The number comes from Pueblo West MD, dated March 2025.
At 169 mg/L, Pueblo West is 72 mg/L above the typical Colorado figure of 97. Of the 10 nearest cities we track, 7 have softer water and 3 have harder. The range nearby runs from 36 mg/L in Cimarron Hills to 335 in Fort Carson.
What 169 mg/L means at home
Expect white crust on faucets and showerheads, plus spots on dishes that come out of the dishwasher.
Kettles collect scale quickly. Water heaters build up sediment at the bottom of the tank, which makes them work harder over time.
Soap and detergent need a little more to lather, and soap scum shows up in the tub.
Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.
What to do about it
At 169 mg/L most of the trouble is scale, and only a few things deal with it.
Ion-exchange water softener
The standard whole-house fix. It swaps calcium and magnesium for sodium or potassium and needs salt plus a drain. Size it with the calculator below.
Salt-free conditioner
No salt and no drain line. It changes how minerals form scale instead of removing them, so water still tests hard.
Reverse osmosis or carbon filter
Under-sink reverse osmosis removes minerals from drinking water only. Plain carbon filters improve taste but do not soften.
3 people × 75 gallons a day × 9.9 gpg = 2,223 grains a day. A 24,000-grain unit regenerates about every 10 days.
EPA record for Pueblo West's water system
3 health-based violations since 2016
Serves about 30,000 people from surface water.
- Health-based
- 3
- Monitoring or reporting
- 28
- Open now
- 0
| Contaminant or rule | Violations | Period | Status |
|---|---|---|---|
| Total trihalomethanes (TTHM)a disinfection byproduct | 1 | 2023 | Resolved |
| Surface Water Treatment Rulefiltration and disinfection | 2 | 2016 | Resolved |
Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.
Questions
Is Pueblo West water hard?
Yes. It measures about 169 mg/L (9.9 grains per gallon), which the USGS classes as hard.
What is the water hardness in Pueblo West in grains per gallon?
About 9.9 gpg. One grain per gallon equals 17.1 mg/L, so 169 mg/L divided by 17.1 gives 9.9.
What size water softener do I need in Pueblo West?
For 3 people using 75 gallons each per day, 9.9 gpg works out to about 2,223 grains a day. A 24,000-grain softener covers that with a regeneration about every 10 days.
Has the Pueblo West water system had EPA violations?
EPA records show 3 health-based violations for Pueblo West MD since 2016, involving Total trihalomethanes (TTHM), Surface Water Treatment Rule. There were also 28 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Pueblo139 mg/LHard
- Cañon City132 mg/LHard
- Fort Carson335 mg/LVery hard
- Fountain335 mg/LVery hard
- Security-Widefield335 mg/LVery hard
- Stratmoor50 mg/LSoft
- Cimarron Hills36 mg/LSoft
- Colorado Springs36 mg/LSoft
- Salida143 mg/LHard
- Meridian96 mg/LModerately hard
Hardness data: TapWaterData US Water Hardness (utility report, March 1, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.