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City water profile

Water hardness in Ouray

Find official utility reports, understand hardness, and check the water system serving your home in Ouray, Colorado.

Utility-reported hardness

Not yet available

Check your provider and source →
State comparison
Unavailable
Evidence comparison rank
—
Matched utilities
1
Active health records
0

Your tap water

What does the utility report?

Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.

Utility hardness unavailable in this index

Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.

Find an official utility report →
Convert a hardness result →Test your tap →

Match the name on your water bill

Your utility’s measurements and compliance records

These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.

EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.

Ouray City Of

CO0146588 · Groundwater influenced by surface water · 1,460 people served system-wide

A municipal system, in-state city, and served county all agree with this Census ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level
Reported level
0.0013 mg/L
Action level
0.015 mg/L

9% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (37)
Imported violation history for Ouray City Of
RuleStatusPeriod
Surface Water Treatment RuleHealth-basedArchivedApr 1, 2026 to Apr 30, 2026
Surface Water Treatment RuleResolvedMar 1, 2026 to Mar 31, 2026
Interim Enhanced Surface Water Treatment RuleResolvedMar 1, 2026 to Mar 31, 2026
Public NoticeResolvedFeb 5, 2026 to Mar 2, 2026
LEAD AND COPPER RULE REVISIONSResolvedJul 2, 2025 to Jul 9, 2025
Surface Water Treatment RuleResolvedJul 1, 2024 to Jul 31, 2024
cis-1,2-DichloroethyleneResolvedJan 1, 2024 to Dec 31, 2024
o-DichlorobenzeneResolvedJan 1, 2024 to Dec 31, 2024
DICHLOROMETHANEResolvedJan 1, 2024 to Dec 31, 2024
Vinyl chlorideResolvedJan 1, 2024 to Dec 31, 2024
1,1-DichloroethyleneResolvedJan 1, 2024 to Dec 31, 2024
1,2-DichloroethaneResolvedJan 1, 2024 to Dec 31, 2024
1,1,1-TrichloroethaneResolvedJan 1, 2024 to Dec 31, 2024
1,2-DichloropropaneResolvedJan 1, 2024 to Dec 31, 2024
TrichloroethyleneResolvedJan 1, 2024 to Dec 31, 2024
TetrachloroethyleneResolvedJan 1, 2024 to Dec 31, 2024
CHLOROBENZENEResolvedJan 1, 2024 to Dec 31, 2024
BenzeneResolvedJan 1, 2024 to Dec 31, 2024
1,1,2-TrichloroethaneResolvedJan 1, 2024 to Dec 31, 2024
Xylenes, TotalResolvedJan 1, 2024 to Dec 31, 2024
trans-1,2-DichloroethyleneResolvedJan 1, 2024 to Dec 31, 2024
Carbon tetrachlorideResolvedJan 1, 2024 to Dec 31, 2024
StyreneResolvedJan 1, 2024 to Dec 31, 2024
1,2,4-TrichlorobenzeneResolvedJan 1, 2024 to Dec 31, 2024
p-DichlorobenzeneResolvedJan 1, 2024 to Dec 31, 2024
EthylbenzeneResolvedJan 1, 2024 to Dec 31, 2024
TolueneResolvedJan 1, 2024 to Dec 31, 2024
Surface Water Treatment RuleResolvedAug 1, 2023 to Aug 31, 2023
ChlorineResolvedJul 1, 2023 to Sep 11, 2023
Surface Water Treatment RuleHealth-basedResolvedOct 2, 2022 to Sep 23, 2024
TTHMResolvedOct 1, 2021 to Dec 31, 2021
Total Haloacetic Acids (HAA5)ResolvedOct 1, 2021 to Dec 31, 2021
Public NoticeResolvedJul 22, 2021 to Oct 21, 2021
Public NoticeResolvedApr 22, 2021 to Oct 21, 2021
TTHMResolvedApr 1, 2021 to Jun 30, 2021
Total Haloacetic Acids (HAA5)ResolvedApr 1, 2021 to Jun 30, 2021
Public NoticeResolvedJan 22, 2021 to Oct 21, 2021

City summary

What the indexed records say

Ouray has 1 published ZIP profile across Ouray County. The regional-evidence median is 577 PPM. The city does not meet the stricter comparison standard.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard1 ZIP

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
3.6 miles
Profiles with evidence
1/1

Confidence labels

High: 1Moderate: 0Low: 0

Observation window: Jun 28, 2017 to Sep 5, 2024.

ZIP directory

Water reports in Ouray

Open a ZIP for site-level provenance and measurements.

ZIP code

81427

Very Hard

576.5 PPM

Nearest site
3.6 mi
Confidence
High

View full ZIP evidence →

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Ouray

Is the water hard?

Check the utility-reported result above when available. Nearby environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.