Hardness
Very Hard
268.5 PPM · 15.7 GPG
Local water dashboard
Official source aggregationWater quality in Jourdanton, TX 78026
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Atascosa County.
1 active health-based violation
- Primary matched system
- City Of Jourdanton
- Source water
- Groundwater
- County
- Atascosa County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
Review needed
1 active health-based record
Lead 90th percentile
0.001 mg/L
7% of action level
Utility match
1 system
Serves 5,721 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
268.5 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
268.5
mg/L as CaCO₃ equivalent
Grains per gallon
15.7
1 GPG ≈ 17.1 PPM
What this means at home
At 268.5 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
104
Nearest site
14.8 mi
Observation range
Jan 14, 2016–Jun 2, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: PZ-78-22-702 (Well).USGS source documentation ↗
Regional context
Is 78026 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Jourdanton median
269 PPM
About the same1 indexed ZIP readings · Range 268.5–268.5 PPM
Texas median
111 PPM
158 PPM higher1019 indexed ZIP readings · Range 5.4–500.5 PPM
EPA benchmark screen
Contaminant snapshot
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
1 pass
Lead (PB90)
0.001 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.
Lead (90th percentile)
Measured in mg/L
Local 0.001
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 28
- Health-based
- 1
- Active health-based
- 1
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | TX0070002 | Resolved | Jan 4, 2026through Mar 25, 2026 |
| Public Notice | TX0070002 | Resolved | Sep 20, 2025through Nov 20, 2025 |
| Public Notice | TX0070002 | Resolved | May 1, 2025through Mar 25, 2026 |
| Public Notice | TX0070002 | Resolved | Jan 23, 2025through Mar 25, 2026 |
| LEAD AND COPPER RULE REVISIONSHealth-based | TX0070002 | Unaddressed | Oct 17, 2024 |
| LEAD AND COPPER RULE REVISIONS | TX0070002 | Unaddressed | Oct 17, 2024 |
| Lead and Copper Rule | TX0070002 | Resolved | Sep 29, 2024through Nov 19, 2024 |
| Chlorine | TX0070002 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| Chlorine | TX0070002 | Resolved | Apr 1, 2024through Jun 30, 2024 |
| E. COLI | TX0070002 | Resolved | Oct 25, 2023through Feb 5, 2024 |
| Lead and Copper Rule | TX0070002 | Resolved | Oct 1, 2023through Apr 16, 2024 |
| Consumer Confidence Rule | TX0070002 | Resolved | Jul 1, 2023through Nov 15, 2023 |
| Public Notice | TX0070002 | Resolved | Feb 1, 2023through Nov 30, 2023 |
| Revised Total Coliform Rule | TX0070002 | Resolved | Feb 1, 2023through Feb 28, 2023 |
| Public Notice | TX0070002 | Resolved | Jan 7, 2023through Dec 21, 2023 |
| Public Notice | TX0070002 | Resolved | Nov 3, 2022through Nov 30, 2023 |
| Public Notice | TX0070002 | Resolved | Oct 15, 2022through Jan 9, 2023 |
| Public Notice | TX0070002 | Resolved | Jun 25, 2022through Jan 9, 2023 |
| Public Notice | TX0070002 | Resolved | Apr 3, 2022through Jan 9, 2023 |
| Public Notice | TX0070002 | Resolved | Feb 1, 2022through Mar 28, 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
Your personalized water action plan
Matched to Jourdanton ZIP 78026 using 268.5 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
268.5 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
Under-Sink Reverse Osmosis System
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
Water questions for Jourdanton
Is tap water safe in Jourdanton?+
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.
How hard is the water?+
Nearby USGS observations produce an estimate of 268.5 PPM, or 15.7 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 268.5 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.