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Water Hardness in 81435

Telluride, Colorado · San Miguel County

223 PPM
13 GPG
Hard
0Soft60120180300+
Estimated — Nearby Data

Dataset updated March 9, 2026Matched to 5 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 5 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.

Source basis
5 estimated sources
This ZIP reading needs local confirmation before equipment sizing or purchase decisions.
Water source profile
Primarily surface water
Surface-water hardness can shift with reservoirs, runoff, season, and treatment. This profile is weighted by known population served across matched systems.
Data recency
March 9, 2026
Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

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 81435

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.

5 water systems
PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.
Telluride Town Of
CO0157800
Moderately Hard
174 PPMsurface water7,900 servedEstimated — Nearby Data
Aldasoro Ranch Hoc
CO0157011
Very Hard
849 PPMgroundwater412 servedEstimated — Nearby Data
Wilson Mesa
CO0157950
Moderately Hard
174 PPMsurface water290 servedEstimated — Nearby Data
San Bernardo Hoa
CO0157701
Very Hard
849 PPMgroundwater132 servedEstimated — Nearby Data
Last Dollar Pud
CO0157300
Very Hard
849 PPMgroundwater96 servedEstimated — Nearby Data

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.

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 Telluride, CO (81435).

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Frequently Asked Questions

Is the water hard in Telluride, CO (81435)?

Our estimate for 81435 is 223 PPM (13 GPG), but it is based on nearby, county, or state-level data rather than a direct treated tap-water report for this exact location. Confirm with your utility or a home test.

Do I need a water softener in 81435?

Do not size a softener from this estimate alone. Confirm the actual tap-water hardness before choosing treatment equipment.

Is hard water in 81435 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 81435?

Zip code 81435 in Telluride, Colorado is served by 5 water systems.

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