Hardness
Very Hard
206 PPM · 12 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 Hardeman County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
206 PPM · 12 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0 mg/L
0% of action level
Utility match
1 system
Serves 2,662 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
206 PPM
Parts per million
206
mg/L as CaCO₃ equivalent
Grains per gallon
12
1 GPG ≈ 17.1 PPM
What this means at home
At 206 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
3
Nearest site
52.9 mi
Observation range
Sep 14, 2016–Aug 31, 2020
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: Lk Kemp Site AC nr Mabelle, 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.
Quanah median
206 PPM
About the same1 indexed ZIP readings · Range 206–206 PPM
Texas median
111 PPM
95 PPM higher1019 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, 2023
Copper (CU90)
1.48 mg/L
Reported Dec 31, 1993
Numerical coverage
3 comparable results
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0
EPA limit 0.015
Measured in mg/L
Local 1.48
EPA limit 1.3
Measured in MG/L
Local 0.108
EPA limit 0.08
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | TX0990002 | Unaddressed | May 14, 2026 |
| Revised Total Coliform Rule | TX0990002 | Resolved | Jan 1, 2026through Jan 31, 2026 |
| TTHMHealth-basedReported 0.108 MG/L · MCL 0.08 | TX0990002 | Archived | Jan 1, 2026through Mar 31, 2026 |
| Chlorine | TX0990002 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Lead and Copper Rule | TX0990002 | Unaddressed | Oct 1, 2025 |
| TTHMHealth-basedReported 0.096 MG/L · MCL 0.08 | TX0990002 | Archived | Oct 1, 2025through Dec 31, 2025 |
| LEAD AND COPPER RULE REVISIONS | TX0990002 | Resolved | Jul 2, 2025through Mar 27, 2026 |
| TTHMHealth-basedReported 0.128 MG/L · MCL 0.08 | TX0990002 | Archived | Jul 1, 2025through Sep 30, 2025 |
| TTHM | TX0990002 | Resolved | Apr 4, 2025through Jul 10, 2025 |
| Public Notice | TX0990002 | Resolved | Jan 16, 2025through Jun 12, 2025 |
| Public Notice | TX0990002 | Resolved | Jan 16, 2025through Jun 12, 2025 |
| Chlorine | TX0990002 | Resolved | Jan 1, 2025through Mar 31, 2025 |
| Chlorine | TX0990002 | Resolved | Oct 1, 2024through Dec 31, 2024 |
| Revised Total Coliform Rule | TX0990002 | Resolved | Aug 1, 2024through Aug 31, 2024 |
| Chlorine | TX0990002 | Resolved | Apr 1, 2024through Jun 30, 2024 |
| Public Notice | TX0990002 | Resolved | Sep 1, 2023through May 6, 2025 |
| Lead and Copper Rule | TX0990002 | Resolved | Dec 30, 2022through May 5, 2025 |
| Revised Total Coliform Rule | TX0990002 | Resolved | Aug 1, 2022through Aug 31, 2022 |
| Revised Total Coliform Rule | TX0990002 | Resolved | Jun 1, 2022through Jun 30, 2022 |
| Public Notice | TX0990002 | Resolved | Jan 1, 2022through Aug 4, 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 Quanah ZIP 79252 using 206 PPM nearby hardness and 3 reported measurement benchmarks.
Scale protection
206 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
Copper (90th percentile), TTHM have 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 206 PPM, or 12 grains per gallon, classified as very hard. This is not a household tap measurement.
At 206 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.