Hardness
Very Hard
322 PPM · 18.8 GPG
Local water dashboard
Official source aggregationA source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Hamilton County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
322 PPM · 18.8 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0079 mg/L
53% of action level
Utility match
1 system
Serves 385 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
322 PPM
Parts per million
322
mg/L as CaCO₃ equivalent
Grains per gallon
18.8
1 GPG ≈ 17.1 PPM
What this means at home
At 322 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
77
Nearest site
1.5 mi
Observation range
Oct 27, 2016–Sep 9, 2025
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 11N 7W18CCCA1 (Well).USGS source documentation ↗
Regional context
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Phillips median
322 PPM
About the same1 indexed ZIP readings · Range 322–322 PPM
Nebraska median
309 PPM
13 PPM higher466 indexed ZIP readings · Range 72.3–1245 PPM
EPA benchmark screen
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
Lead (PB90)
0.0079 mg/L
Reported Dec 31, 2024
Copper (CU90)
2.24 mg/L
Reported Dec 31, 1993
Numerical coverage
3 comparable results
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0.0079
EPA limit 0.015
Measured in mg/L
Local 2.24
EPA limit 1.3
Measured in UG/L
Local 31
EPA limit 30
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Combined UraniumHealth-basedReported 31 UG/L · MCL 30 | NE3108106 | Archived | Jan 1, 2026through Mar 31, 2026 |
| Combined UraniumHealth-basedReported 37 UG/L · MCL 30 | NE3108106 | Archived | Jan 1, 2026through Mar 31, 2026 |
| Combined UraniumHealth-basedReported 38 UG/L · MCL 30 | NE3108106 | Archived | Oct 1, 2025through Dec 31, 2025 |
| Combined UraniumHealth-basedReported 31 UG/L · MCL 30 | NE3108106 | Archived | Oct 1, 2025through Dec 31, 2025 |
| Combined UraniumHealth-basedReported 38 UG/L · MCL 30 | NE3108106 | Archived | Jul 1, 2025through Sep 30, 2025 |
| Combined UraniumHealth-basedReported 31 UG/L · MCL 30 | NE3108106 | Archived | Jul 1, 2025through Sep 30, 2025 |
| Combined UraniumHealth-basedReported 40 UG/L · MCL 30 | NE3108106 | Archived | Apr 1, 2025through Jun 30, 2025 |
| Combined UraniumHealth-basedReported 34 UG/L · MCL 30 | NE3108106 | Archived | Apr 1, 2025through Jun 30, 2025 |
| Combined UraniumHealth-basedReported 41 UG/L · MCL 30 | NE3108106 | Archived | Jan 1, 2025through Mar 31, 2025 |
| Combined UraniumHealth-basedReported 36 UG/L · MCL 30 | NE3108106 | Archived | Jan 1, 2025through Mar 31, 2025 |
| Combined UraniumHealth-basedReported 36 UG/L · MCL 30 | NE3108106 | Archived | Oct 1, 2024through Dec 31, 2024 |
| Combined UraniumHealth-basedReported 41 UG/L · MCL 30 | NE3108106 | Archived | Oct 1, 2024through Dec 31, 2024 |
| Combined UraniumHealth-basedReported 42 UG/L · MCL 30 | NE3108106 | Archived | Jul 1, 2024through Sep 30, 2024 |
| Combined UraniumHealth-basedReported 36 UG/L · MCL 30 | NE3108106 | Archived | Jul 1, 2024through Sep 30, 2024 |
| Combined UraniumHealth-basedReported 41 UG/L · MCL 30 | NE3108106 | Archived | Apr 1, 2024through Jun 30, 2024 |
| Combined UraniumHealth-basedReported 35 UG/L · MCL 30 | NE3108106 | Archived | Apr 1, 2024through Jun 30, 2024 |
| Combined UraniumHealth-basedReported 32 UG/L · MCL 30 | NE3108106 | Archived | Jan 1, 2024through Mar 31, 2024 |
| Combined UraniumHealth-basedReported 41 UG/L · MCL 30 | NE3108106 | Archived | Jan 1, 2024through Mar 31, 2024 |
| Combined UraniumHealth-basedReported 39 UG/L · MCL 30 | NE3108106 | Archived | Oct 1, 2023through Dec 31, 2023 |
| Combined UraniumHealth-basedReported 33 UG/L · MCL 30 | NE3108106 | Archived | Oct 1, 2023through Dec 31, 2023 |
No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.
Solutions matcher
Matched to Phillips ZIP 68865 using 322 PPM nearby hardness and 3 reported measurement benchmarks.
Scale protection
322 PPM is 3× 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
Copper (90th percentile), Combined Uranium 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.
Frequently asked
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.
Nearby USGS observations produce an estimate of 322 PPM, or 18.8 grains per gallon, classified as very hard. This is not a household tap measurement.
At 322 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.