Hardness
Very Hard
205 PPM · 12 GPG
Local water dashboard
Official source aggregationWater quality in Kemmerer, WY 83101
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Lincoln County.
2 reported benchmark flags
- Primary matched system
- Kemmerer-Diamondville Jpb
- Source water
- Surface water
- County
- Lincoln 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 mg/L
0% of action level
Utility match
2 systems
Serves 3,348 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
205 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
205
mg/L as CaCO₃ equivalent
Grains per gallon
12
1 GPG ≈ 17.1 PPM
What this means at home
At 205 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
11
Nearest site
24.7 mi
Observation range
Jan 6, 2016–Apr 28, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: GREEN RIVER NEAR LA BARGE, WY (Stream).USGS source documentation ↗
Regional context
Is 83101 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Kemmerer median
210 PPM
5 PPM lower3 indexed ZIP readings · Range 205–210 PPM
Wyoming median
235 PPM
30 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 pass2 fail
Lead (PB90)
0 mg/L
Reported Dec 31, 2025
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
3 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0
EPA limit 0.015
TTHM
Measured in MG/L
Local 0.082
EPA limit 0.08
Total Haloacetic Acids (HAA5)
Measured in MG/L
Local 0.064
EPA limit 0.06
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 39
- Health-based
- 10
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| TTHMHealth-basedReported 0.082 MG/L · MCL 0.08 | WY5600028 | Resolved | Jul 1, 2025through Sep 30, 2025 |
| TTHMHealth-basedReported 0.086 MG/L · MCL 0.08 | WY5600028 | Resolved | Jan 1, 2025through Mar 31, 2025 |
| Lead and Copper Rule | WY5601733 | Resolved | Jan 1, 2025through Nov 24, 2025 |
| TTHMHealth-basedReported 0.089 MG/L · MCL 0.08 | WY5600028 | Resolved | Oct 1, 2024through Dec 31, 2024 |
| Surface Water Treatment Rule | WY5601733 | Resolved | Aug 1, 2024through Aug 31, 2024 |
| Revised Total Coliform Rule | WY5601733 | Resolved | Aug 1, 2024through Aug 31, 2024 |
| TTHMHealth-basedReported 0.086 MG/L · MCL 0.08 | WY5600028 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| TTHMHealth-basedReported 0.09 MG/L · MCL 0.08 | WY5600028 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| Lead and Copper Rule | WY5601733 | Resolved | Jul 1, 2024through Nov 24, 2025 |
| Revised Total Coliform Rule | WY5601733 | Resolved | Jul 1, 2024through Jul 31, 2024 |
| Surface Water Treatment Rule | WY5601733 | Resolved | Jul 1, 2024through Jul 31, 2024 |
| Revised Total Coliform Rule | WY5601733 | Resolved | Jun 1, 2024through Jun 30, 2024 |
| Surface Water Treatment Rule | WY5601733 | Resolved | Jun 1, 2024through Jun 30, 2024 |
| Revised Total Coliform Rule | WY5601733 | Resolved | May 1, 2024through May 31, 2024 |
| Surface Water Treatment Rule | WY5601733 | Resolved | May 1, 2024through May 31, 2024 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.064 MG/L · MCL 0.06 | WY5600028 | Resolved | Apr 1, 2024through Jun 30, 2024 |
| TTHMHealth-basedReported 0.085 MG/L · MCL 0.08 | WY5600028 | Resolved | Apr 1, 2024through Jun 30, 2024 |
| TTHMHealth-basedReported 0.092 MG/L · MCL 0.08 | WY5600028 | Resolved | Apr 1, 2024through Jun 30, 2024 |
| Surface Water Treatment Rule | WY5601733 | Resolved | Apr 1, 2024through Apr 30, 2024 |
| Revised Total Coliform Rule | WY5601733 | Resolved | Apr 1, 2024through Apr 30, 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 Kemmerer ZIP 83101 using 205 PPM nearby hardness and 3 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
205 PPM is 2× the high-hardness trigger used by this matcher.
Designed to reduce scale on fixtures, water heaters, glassware, and plumbing throughout the home.
Compare whole-house systemsDrinking water protection
Under-Sink Reverse Osmosis System
TTHM, Total Haloacetic Acids (HAA5) have 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 Kemmerer
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Kemmerer
Is tap water safe in Kemmerer?+
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 205 PPM, or 12 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 205 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.