Hardness
Soft
37.7 PPM · 2.2 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 Iredell County.
At a glance
EPA quarter 2026Q2
Hardness
Soft
37.7 PPM · 2.2 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0 mg/L
0% of action level
Utility match
3 systems
Serves 9,562 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
37.7 PPM
Parts per million
37.7
mg/L as CaCO₃ equivalent
Grains per gallon
2.2
1 GPG ≈ 17.1 PPM
What this means at home
At 37.7 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
1
Nearest site
51.6 mi
Observation range
Jul 27, 2016–Apr 3, 2018
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: FISHING CREEK AT HWY 5 BELOW YORK, SC (Stream).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.
Troutman median
38 PPM
About the same1 indexed ZIP readings · Range 37.7–37.7 PPM
North Carolina median
41 PPM
About the same519 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 |
|---|---|---|---|
| LEAD AND COPPER RULE REVISIONS | NC0149030 | Resolved | Oct 17, 2024through Feb 25, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | NC0149030 | Resolved | Oct 17, 2024through Feb 25, 2025 |
| Consumer Confidence Rule | NC2049042 | Resolved | Jul 1, 2024through Dec 17, 2024 |
| Total Haloacetic Acids (HAA5) | NC0149030 | Resolved | Mar 1, 2023through May 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 Troutman ZIP 28166 using 37.7 PPM nearby hardness and 1 reported measurement benchmarks.
No urgent match
This profile does not trigger a treatment recommendation. Test at the tap before investing in equipment.
Affiliate 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 37.7 PPM, or 2.2 grains per gallon, classified as soft. This is not a household tap measurement.
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.