Hardness
Very Hard
184.8 PPM · 10.8 GPG
Local water dashboard
Official source aggregationWater quality in Rosman, NC 28772
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Transylvania County.
1 active health-based violation
- Primary matched system
- Rosman, Town Of
- Source water
- Groundwater
- County
- Transylvania County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
Review needed
1 active health-based record
Lead 90th percentile
0.006 mg/L
40% of action level
Utility match
3 systems
Serves 650 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
184.8 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
184.8
mg/L as CaCO₃ equivalent
Grains per gallon
10.8
1 GPG ≈ 17.1 PPM
What this means at home
At 184.8 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
2
Nearest site
57.4 mi
Observation range
Aug 9, 2022–Aug 17, 2022
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: Co:K-012 (Well).USGS source documentation ↗
Regional context
Is 28772 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Rosman median
185 PPM
About the same1 indexed ZIP readings · Range 184.8–184.8 PPM
North Carolina median
41 PPM
144 PPM higher519 indexed ZIP readings · Range 4.7–267.5 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 pass1 fail
Lead (PB90)
0.006 mg/L
Reported Dec 31, 2025
Copper (CU90)
1.538 mg/L
Reported Dec 31, 2025
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.006
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 1.538
EPA limit 1.3
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 77
- Health-based
- 4
- Active health-based
- 1
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Lead and Copper Rule | NC1088013 | Addressed | Oct 1, 2025 |
| Endrin | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| BHC-GAMMA | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Toxaphene | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Di(2-ethylhexyl) phthalate | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Dinoseb | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| LASSO | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Heptachlor | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Heptachlor epoxide | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| 2,4-D | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| HEXACHLOROBENZENE | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Pentachlorophenol | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Total Polychlorinated Biphenyls (PCB) | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| 1,2-DIBROMO-3-CHLOROPROPANE | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Chlordane | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| 2,4,5-TP | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| OXAMYL | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Hexachlorocyclopentadiene | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Simazine | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Picloram | NC1088013 | Resolved | Oct 1, 2025through Dec 31, 2025 |
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 Rosman ZIP 28772 using 184.8 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
184.8 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
Copper (90th percentile) has 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
Water questions for Rosman
Is tap water safe in Rosman?+
EPA ECHO reports 1 active health-based violation among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
How hard is the water?+
Nearby USGS observations produce an estimate of 184.8 PPM, or 10.8 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 184.8 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.