Hardness
Very Hard
207 PPM · 12.1 GPG
Local water dashboard
Official source aggregationWater quality in Fromberg, MT 59029
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Carbon County.
No active health-based violation reported
- Primary matched system
- Fromberg Town Of
- Source water
- Groundwater
- County
- Carbon 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
0.005 mg/L
33% of action level
Utility match
1 system
Serves 498 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
207 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
207
mg/L as CaCO₃ equivalent
Grains per gallon
12.1
1 GPG ≈ 17.1 PPM
What this means at home
At 207 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
15
Nearest site
34.3 mi
Observation range
Jan 13, 2016–Feb 28, 2025
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: BL-18 Medicine Creek Canyon in Bighorn Lake (Lake, Reservoir, Impoundment).USGS source documentation ↗
Regional context
Is 59029 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Fromberg median
207 PPM
About the same1 indexed ZIP readings · Range 207–207 PPM
Montana median
122 PPM
85 PPM higher129 indexed ZIP readings · Range 0.2–799.5 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 pass
Lead (PB90)
0.005 mg/L
Reported Jun 30, 2019
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
1 comparable result
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.005
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 15
- Health-based
- 2
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Lead and Copper Rule | MT0000222 | Unaddressed | Oct 1, 2025 |
| Revised Total Coliform Rule | MT0000222 | Resolved | Aug 1, 2025through Aug 31, 2025 |
| Consumer Confidence Rule | MT0000222 | Resolved | Jul 1, 2025through Jul 18, 2025 |
| Revised Total Coliform Rule | MT0000222 | Resolved | Jun 1, 2025through Jun 30, 2025 |
| Nitrate-Nitrite | MT0000222 | Resolved | Jan 1, 2024through Dec 31, 2024 |
| Consumer Confidence Rule | MT0000222 | Resolved | Oct 1, 2023through Jun 16, 2024 |
| Consumer Confidence Rule | MT0000222 | Resolved | Oct 1, 2022through Jun 16, 2024 |
| Revised Total Coliform Rule | MT0000222 | Resolved | Oct 1, 2022through Oct 31, 2022 |
| Consumer Confidence Rule | MT0000222 | Resolved | Jul 1, 2022through Jun 22, 2023 |
| Revised Total Coliform RuleHealth-based | MT0000222 | Resolved | Jun 1, 2022through Jun 30, 2022 |
| Revised Total Coliform RuleHealth-based | MT0000222 | Resolved | Mar 13, 2022through Jul 14, 2022 |
| TTHM | MT0000222 | Archived | Jan 1, 2022through Dec 31, 2024 |
| Total Haloacetic Acids (HAA5) | MT0000222 | Archived | Jan 1, 2022through Dec 31, 2024 |
| Consumer Confidence Rule | MT0000222 | Resolved | Jul 1, 2021through Jun 22, 2023 |
| Nitrate-Nitrite | MT0000222 | Resolved | Jan 1, 2021through Dec 31, 2021 |
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 Fromberg ZIP 59029 using 207 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
207 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 systemsAffiliate 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.
Frequently asked
Water questions for Fromberg
Is tap water safe in Fromberg?+
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 207 PPM, or 12.1 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 207 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.