Hardness
Moderately Hard
108 PPM · 6.3 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 Hunt County.
At a glance
EPA quarter 2026Q2
Hardness
Moderately Hard
108 PPM · 6.3 GPG
Compliance screen
Review needed
1 active health-based record
Lead 90th percentile
0 mg/L
0% of action level
Utility match
1 system
Serves 2,061 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
108 PPM
Parts per million
108
mg/L as CaCO₃ equivalent
Grains per gallon
6.3
1 GPG ≈ 17.1 PPM
What this means at home
At 108 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
84
Nearest site
3.2 mi
Observation range
Jan 5, 2016–Jun 4, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: Lk Tawakoni nr Caddo Ck Ramp nr Quinlan, TX (Lake, Reservoir, Impoundment).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.
West Tawakoni median
108 PPM
About the same1 indexed ZIP readings · Range 108–108 PPM
Texas median
111 PPM
About the same1019 indexed ZIP readings · Range 5.4–500.5 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 | TX1160012 | Unaddressed | Apr 1, 2026 |
| Lead and Copper Rule | TX1160012 | Unaddressed | Jan 1, 2026 |
| CARBON, TOTAL | TX1160012 | Resolved | Dec 1, 2025through Dec 31, 2025 |
| Interim Enhanced Surface Water Treatment Rule | TX1160012 | Archived | Dec 1, 2025through Dec 31, 2025 |
| Revised Total Coliform Rule | TX1160012 | Resolved | Nov 1, 2025through Nov 30, 2025 |
| Public Notice | TX1160012 | Unaddressed | Oct 31, 2025 |
| Lead and Copper Rule | TX1160012 | Unaddressed | Sep 29, 2025 |
| Interim Enhanced Surface Water Treatment Rule | TX1160012 | Archived | Aug 1, 2025through Aug 31, 2025 |
| CARBON, TOTAL | TX1160012 | Resolved | Aug 1, 2025through Aug 31, 2025 |
| Consumer Confidence Rule | TX1160012 | Unaddressed | Jul 1, 2025 |
| Lead and Copper Rule | TX1160012 | Resolved | Jan 1, 2025through Apr 17, 2025 |
| Public Notice | TX1160012 | Resolved | Dec 1, 2024through Apr 2, 2025 |
| LEAD AND COPPER RULE REVISIONS | TX1160012 | Addressed | Oct 17, 2024 |
| LEAD AND COPPER RULE REVISIONSHealth-based | TX1160012 | Addressed | Oct 17, 2024 |
| Total Haloacetic Acids (HAA5) | TX1160012 | Unaddressed | Sep 16, 2024 |
| Lead and Copper Rule | TX1160012 | Resolved | Jul 1, 2024through Apr 17, 2025 |
| Consumer Confidence Rule | TX1160012 | Resolved | Jul 1, 2024through Sep 16, 2024 |
| Public Notice | TX1160012 | Unaddressed | Nov 16, 2023 |
| Public Notice | TX1160012 | Unaddressed | Nov 16, 2023 |
| Lead and Copper Rule | TX1160012 | Resolved | Oct 1, 2023through Apr 17, 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
Matched to West Tawakoni ZIP 75474 using 108 PPM nearby hardness and 1 reported measurement benchmarks.
Drinking water protection
LEAD AND COPPER RULE REVISIONS 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.
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Frequently asked
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.
Nearby USGS observations produce an estimate of 108 PPM, or 6.3 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.