Hardness
Very Hard
257 PPM · 15 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 Uvalde County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
257 PPM · 15 GPG
Compliance screen
Review needed
1 active health-based record
Lead 90th percentile
8.0e-4 mg/L
5% of action level
Utility match
1 system
Serves 2,301 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
257 PPM
Parts per million
257
mg/L as CaCO₃ equivalent
Grains per gallon
15
1 GPG ≈ 17.1 PPM
What this means at home
At 257 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
109
Nearest site
3.4 mi
Observation range
Jan 12, 2016–Jun 2, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: YP-69-36-804 (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.
Sabinal median
257 PPM
About the same1 indexed ZIP readings · Range 257–257 PPM
Texas median
111 PPM
146 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)
8.0e-4 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 8.0e-4
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Lead and Copper Rule | TX2320001 | Unaddressed | Dec 30, 2025 |
| Public Notice | TX2320001 | Unaddressed | Aug 3, 2025 |
| Consumer Confidence Rule | TX2320001 | Resolved | Jul 1, 2025through Feb 12, 2026 |
| Public Notice | TX2320001 | Resolved | Mar 10, 2025through Apr 23, 2025 |
| Lead and Copper Rule | TX2320001 | Resolved | Jan 1, 2025through Aug 13, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | TX2320001 | Unaddressed | Oct 17, 2024 |
| LEAD AND COPPER RULE REVISIONS | TX2320001 | Unaddressed | Oct 17, 2024 |
| Consumer Confidence Rule | TX2320001 | Resolved | Jul 2, 2024through Sep 19, 2024 |
| Revised Total Coliform Rule | TX2320001 | Resolved | Jun 1, 2024through Jun 30, 2024 |
| Lead and Copper Rule | TX2320001 | Resolved | Mar 31, 2024through Oct 29, 2024 |
| Lead and Copper Rule | TX2320001 | Resolved | Jan 1, 2024through Jul 10, 2024 |
| Chlorine | TX2320001 | Resolved | Jan 1, 2024through Mar 31, 2024 |
| Lead and Copper Rule | TX2320001 | Resolved | Sep 29, 2023through Oct 29, 2024 |
| Revised Total Coliform Rule | TX2320001 | Resolved | Jul 1, 2023through Jul 31, 2023 |
| Lead and Copper Rule | TX2320001 | Resolved | Jan 1, 2023through Jun 30, 2023 |
| Lead and Copper Rule | TX2320001 | Resolved | Jul 1, 2022through Jun 30, 2023 |
| Chlorine | TX2320001 | Resolved | Oct 1, 2021through Dec 31, 2021 |
| Lead and Copper Rule | TX2320001 | Resolved | Oct 1, 2021through Jun 30, 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 Sabinal ZIP 78881 using 257 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
257 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
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.
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 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 257 PPM, or 15 grains per gallon, classified as very hard. This is not a household tap measurement.
At 257 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.