Hardness
Moderately Hard
61.8 PPM · 3.6 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 Garvin County.
At a glance
EPA quarter 2026Q2
Hardness
Moderately Hard
61.8 PPM · 3.6 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0022 mg/L
14% of action level
Utility match
1 system
Serves 1,575 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
61.8 PPM
Parts per million
61.8
mg/L as CaCO₃ equivalent
Grains per gallon
3.6
1 GPG ≈ 17.1 PPM
What this means at home
At 61.8 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
5
Nearest site
14.3 mi
Observation range
Dec 13, 2016–Aug 6, 2018
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 06N-04E-19 CCD 1 (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.
Stratford median
62 PPM
About the same1 indexed ZIP readings · Range 61.8–61.8 PPM
Oklahoma median
226 PPM
164 PPM lower148 indexed ZIP readings · Range 7–610 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)
0.0022 mg/L
Reported Dec 31, 2024
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 0.0022
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Asbestos | OK2002503 | Archived | Jan 1, 2025through Dec 31, 2025 |
| Revised Total Coliform RuleHealth-based | OK2002503 | Resolved | Dec 1, 2024through Dec 13, 2024 |
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 Stratford ZIP 74872 using 61.8 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 61.8 PPM, or 3.6 grains per gallon, classified as moderately hard. This is not a household tap measurement.
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.