Hardness
Very Hard
332.5 PPM · 19.4 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 Burke County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
332.5 PPM · 19.4 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0027 mg/L
18% of action level
Utility match
1 system
Serves 66 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
332.5 PPM
Parts per million
332.5
mg/L as CaCO₃ equivalent
Grains per gallon
19.4
1 GPG ≈ 17.1 PPM
What this means at home
At 332.5 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
34
Nearest site
16.7 mi
Observation range
Aug 15, 2017–Jul 23, 2025
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 163-093-17DDD (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.
Flaxton median
333 PPM
About the same1 indexed ZIP readings · Range 332.5–332.5 PPM
North Dakota median
372 PPM
39 PPM lower226 indexed ZIP readings · Range 170.5–716 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)
0.0027 mg/L
Reported Dec 31, 2025
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.
Measured in mg/L
Local 0.0027
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Lead and Copper Rule | ND0700344 | Unaddressed | Feb 12, 2025 |
| Lead and Copper RuleHealth-based | ND0700344 | Resolved | Jul 1, 2024through Feb 4, 2025 |
| Lead and Copper RuleHealth-based | ND0700344 | Resolved | Mar 12, 2024through May 8, 2024 |
| Lead and Copper Rule | ND0700344 | Resolved | Nov 28, 2023through Apr 30, 2024 |
| Lead and Copper Rule | ND0700344 | Unaddressed | Nov 17, 2022 |
| Consumer Confidence Rule | ND0700344 | Resolved | Oct 2, 2022through Jul 19, 2023 |
| Lead and Copper Rule | ND0700344 | Resolved | Nov 21, 2021through Mar 29, 2022 |
| Revised Total Coliform Rule | ND0700344 | Resolved | Jul 1, 2021through Jul 31, 2021 |
| Chlorine | ND0700344 | Resolved | Jul 1, 2021through Sep 30, 2021 |
| Lead and Copper RuleHealth-based | ND0700344 | Resolved | May 14, 2021through Sep 15, 2021 |
| Lead and Copper Rule | ND0700344 | Resolved | Apr 1, 2021through Sep 15, 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
Matched to Flaxton ZIP 58737 using 332.5 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
332.5 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 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
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 332.5 PPM, or 19.4 grains per gallon, classified as very hard. This is not a household tap measurement.
At 332.5 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.