Hardness
Soft
39.2 PPM · 2.3 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 Coos County.
At a glance
EPA quarter 2026Q2
Hardness
Soft
39.2 PPM · 2.3 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
Not reported
Check the utility CCR or tap test
Utility match
1 system
Serves 1,640 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
39.2 PPM
Parts per million
39.2
mg/L as CaCO₃ equivalent
Grains per gallon
2.3
1 GPG ≈ 17.1 PPM
What this means at home
At 39.2 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
4.9 mi
Observation range
May 23, 2016–Jul 20, 2023
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: NH-BSW 44 (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.
Whitefield median
39 PPM
About the same1 indexed ZIP readings · Range 39.2–39.2 PPM
New Hampshire median
58 PPM
19 PPM lower90 indexed ZIP readings · Range 16–102 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)
Not available
No numerical 90th-percentile result
Copper (CU90)
2.17 mg/L
Reported Dec 31, 1993
Numerical coverage
1 comparable result
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 2.17
EPA limit 1.3
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Revised Total Coliform RuleHealth-based | NH2501010 | Resolved | Sep 1, 2022through Oct 1, 2022 |
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 Whitefield ZIP 03598 using 39.2 PPM nearby hardness and 1 reported measurement benchmarks.
Drinking water protection
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
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 39.2 PPM, or 2.3 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.