Water Hardness in 81623
Marble, Colorado · Garfield County
Dataset updated March 9, 2026Matched to 24 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 24 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.
Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.
Water Systems Serving 81623
These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.
| Water System | Source | Hardness | Pop. Served |
|---|---|---|---|
Carbondale Town Of CO0123167 | surface water | 206 PPM Hard | |
Battlement Mesa Md CO0123133 | surface water | 410 PPM Very Hard | |
El Jebel Mhp CO0119246 | surface water | 206 PPM Hard | |
Roaring Fork Wsd CO0123125 | groundwater | 410 PPM Very Hard | |
Mitchell Cooper Ditch Pipeline CO0123510 | surface water | 410 PPM Very Hard |
Nearby Zip Codes
What This Means For You
Recommendations are based on the displayed ZIP hardness reading. Confirm your tap reading before sizing or buying treatment equipment.
Very Hard Water - Treatment Strongly Recommended
Your water is very hard. Without treatment, you can expect significant scale buildup in pipes and appliances, higher energy bills from reduced water heater efficiency, and persistent issues with skin and hair dryness.
Recommended Products
Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | How to Test Your Water
Know your water hardness?
If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Marble, CO (81623).
Frequently Asked Questions
Is the water hard in Marble, CO (81623)?
The average water hardness in 81623 is 289 PPM (16.9 GPG), which is classified as very hard.
Do I need a water softener in 81623?
With hardness of 289 PPM, a water softener is recommended for homes in 81623.
Is hard water in 81623 safe to drink?
Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.
How many water systems serve 81623?
Zip code 81623 in Marble, Colorado is served by 24 water systems.
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