Hardness
Soft
13.3 PPM · 0.8 GPG
Local water dashboard
Official source aggregationWater quality in Cheyenne, WY 82007
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Laramie County.
1 reported benchmark flag
- Primary matched system
- Cheyenne Board Of Public Utilities
- Source water
- Surface water + Groundwater
- County
- Laramie County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.015 mg/L
100% of action level
Utility match
10 systems
Serves 64,165 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
13.3 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
13.3
mg/L as CaCO₃ equivalent
Grains per gallon
0.8
1 GPG ≈ 17.1 PPM
What this means at home
At 13.3 PPM, mineral scale can build up on fixtures and heating elements, reduce soap lather, and leave visible spotting. Hardness is primarily an aesthetic and appliance concern—not itself a tap-water safety rating.
USGS sites used
35
Nearest site
39.8 mi
Observation range
Jan 5, 2016–Jun 2, 2026
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: CACHE LA POUDRE RIVER AT FORT COLLINS, CO (Stream).USGS source documentation ↗
Regional context
Is 82007 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Cheyenne median
10 PPM
About the same2 indexed ZIP readings · Range 6.7–13.3 PPM
Wyoming median
235 PPM
222 PPM lower93 indexed ZIP readings · Range 3.2–1905 PPM
EPA benchmark screen
Contaminant snapshot
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
1 pass1 fail
Lead (PB90)
0.015 mg/L
Reported Dec 31, 2025
Copper (CU90)
1.4 mg/L
Reported Dec 31, 2002
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.015
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 1.4
EPA limit 1.3
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 103
- Health-based
- 4
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Nitrate-Nitrite | WY5601292 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Consumer Confidence Rule | WY5600021 | Unaddressed | Oct 1, 2025 |
| Revised Total Coliform RuleHealth-based | WY5601292 | Resolved | Aug 1, 2025through Aug 31, 2025 |
| Consumer Confidence Rule | WY5600021 | Unaddressed | Jul 1, 2025 |
| Total Haloacetic Acids (HAA5) | WY5600021 | Archived | Jan 1, 2025through Dec 31, 2025 |
| TTHM | WY5600021 | Archived | Jan 1, 2025through Dec 31, 2025 |
| Chlorine | WY5600021 | Resolved | Sep 1, 2024through Sep 30, 2024 |
| Consumer Confidence Rule | WY5600239 | Resolved | Jul 1, 2024through Mar 3, 2025 |
| Nitrate-Nitrite | WY5600021 | Resolved | Jan 1, 2024through Mar 31, 2024 |
| Total Haloacetic Acids (HAA5) | WY5600021 | Archived | Jan 1, 2024through Dec 31, 2024 |
| TTHM | WY5600021 | Archived | Jan 1, 2024through Dec 31, 2024 |
| Lead and Copper Rule | WY5600021 | Unaddressed | Dec 30, 2023 |
| Nitrate-Nitrite | WY5600021 | Resolved | Jul 1, 2023through Sep 30, 2023 |
| Revised Total Coliform Rule | WY5680122 | Resolved | Apr 1, 2023through Apr 30, 2023 |
| Surface Water Treatment Rule | WY5680122 | Resolved | Apr 1, 2023through Apr 30, 2023 |
| TTHM | WY5680122 | Resolved | Jan 1, 2023through Mar 31, 2023 |
| Total Haloacetic Acids (HAA5) | WY5680122 | Resolved | Jan 1, 2023through Mar 31, 2023 |
| 1,2-DIBROMO-3-CHLOROPROPANE | WY5600012 | Archived | Jan 1, 2023through Dec 31, 2025 |
| ETHYLENE DIBROMIDE | WY5600012 | Archived | Jan 1, 2023through Dec 31, 2025 |
| Lead and Copper Rule | WY5600260 | Resolved | Jan 1, 2023through Feb 22, 2024 |
No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.
Solutions matcher
Your personalized water action plan
Matched to Cheyenne ZIP 82007 using 13.3 PPM nearby hardness and 2 reported measurement benchmarks.
Drinking water protection
Under-Sink Reverse Osmosis System
Copper (90th percentile) has a measured benchmark flag or active health-based SDWIS record in this profile.
A certified multi-stage RO system targets a broader range of dissolved contaminants at the kitchen tap.
Explore under-sink filtrationAffiliate disclosure: we may earn a commission from qualifying purchases, at no added cost to you. Product matching is educational and does not replace certified water testing.
Nearby indexed reports
Compare ZIPs in Cheyenne
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Cheyenne
Is tap water safe in Cheyenne?+
EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.
How hard is the water?+
Nearby USGS observations produce an estimate of 13.3 PPM, or 0.8 grains per gallon, classified as soft. This is not a household tap measurement.
Do I need a water softener?+
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.