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City water profile

Cheyenne water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Cheyenne, Wyoming.

Median indexed hardness

10PPM

2 indexed ZIPs

Range 6.7–13.3 PPM

State comparison
225 PPM below
State hardness rank
#83 of 86
Matched utilities
10
Active health records
0

City summary

What the indexed records say

Cheyenne has 2 published ZIP profiles across Laramie County. The indexed median is 10 PPM, compared with 235 PPM across Wyoming.

Among the 86 Wyomingcities with an indexed median, Cheyenne ranks #83from highest to lowest. Across all 97 state ZIP profiles, available estimates run from 3.2to 1905 PPM.

The 6.7–13.3 PPM range shows how much the available ZIP estimates vary within the city label. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft2 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
39.8 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 0Low: 2

Observation window: Jan 5, 2016 to Jun 2, 2026.

ZIP directory

Water reports in Cheyenne

Open a ZIP for site-level provenance and measurements.

ZIP code

82001

Soft

6.7 PPM

Nearest site
36.2 mi
Confidence
Low

View full ZIP evidence →

ZIP code

82007

Soft

13.3 PPM

Nearest site
39.8 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Cheyenne Board Of Public Utilities

PWSID WY5600011

Surface water
System population served
64,165
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

South Cheyenne Water & Sewer District

PWSID WY5600239

Surface water
System population served
10,000
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Usaf F.e. Warren Afb

PWSID WY5680122

Surface water
System population served
5,500
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Winchester Hills

PWSID WY5600779

Groundwater
System population served
1,078
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

West Winds

PWSID WY5601619

Surface water
System population served
663
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Big Country Estates

PWSID WY5601271

Surface water
System population served
615
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Cimmaron Village

PWSID WY5601315

Surface water
System population served
327
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Orchard Valley Water Company

PWSID WY5600012

Groundwater
System population served
260
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Englewood Village Mhp

PWSID WY5601304

Surface water
System population served
152
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Highland Ranch Estates

PWSID WY5600260

Groundwater
System population served
128
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Nitrate-NitriteWY5601292Oct 1, 2025Resolved
Consumer Confidence RuleWY5600021Oct 1, 2025Unaddressed
Revised Total Coliform RuleWY5601292Aug 1, 2025Resolved · health-based
Consumer Confidence RuleWY5600021Jul 1, 2025Unaddressed
Total Haloacetic Acids (HAA5)WY5600021Jan 1, 2025Archived
TTHMWY5600021Jan 1, 2025Archived
ChlorineWY5600021Sep 1, 2024Resolved
Consumer Confidence RuleWY5600239Jul 1, 2024Resolved
Nitrate-NitriteWY5600021Jan 1, 2024Resolved
Total Haloacetic Acids (HAA5)WY5600021Jan 1, 2024Archived

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. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Cheyenne

Is the water hard?

The indexed city median is 10 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

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.