Hardness
Very Hard
185 PPM · 10.8 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 Columbus County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
185 PPM · 10.8 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0 mg/L
0% of action level
Utility match
1 system
Serves 668 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
185 PPM
Parts per million
185
mg/L as CaCO₃ equivalent
Grains per gallon
10.8
1 GPG ≈ 17.1 PPM
What this means at home
At 185 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
80
Nearest site
14.2 mi
Observation range
May 8, 2017–Aug 28, 2024
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: BR-148 MACO FT O-5 SANDY CREEK, NC SURFICIAL (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.
Bolton median
185 PPM
About the same1 indexed ZIP readings · Range 185–185 PPM
North Carolina median
41 PPM
144 PPM higher519 indexed ZIP readings · Range 4.7–267.5 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 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
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Revised Total Coliform Rule | NC0424050 | Resolved | Nov 1, 2024through Nov 30, 2024 |
| Chlorine | NC0424050 | Resolved | Nov 1, 2024through Nov 30, 2024 |
| LEAD AND COPPER RULE REVISIONSHealth-based | NC0424050 | Resolved | Oct 17, 2024through Feb 24, 2025 |
| LEAD AND COPPER RULE REVISIONS | NC0424050 | Resolved | Oct 17, 2024through Feb 24, 2025 |
| Lead and Copper Rule | NC0424050 | Addressed | Oct 1, 2024 |
| Lead and Copper Rule | NC0424050 | Resolved | Jan 1, 2022through Mar 21, 2022 |
| Lead and Copper Rule | NC0424050 | Unaddressed | Jul 1, 1993 |
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 Bolton ZIP 28423 using 185 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
185 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
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 185 PPM, or 10.8 grains per gallon, classified as very hard. This is not a household tap measurement.
At 185 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.