Hardness
Very Hard
316 PPM · 18.5 GPG
Local water dashboard
Official source aggregationWater quality in Flatonia, TX 78941
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Fayette County.
2 active health-based violations
- Primary matched system
- City Of Flatonia
- Source water
- Groundwater
- County
- Fayette County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
Review needed
2 active health-based records
Lead 90th percentile
0.005 mg/L
33% of action level
Utility match
1 system
Serves 1,969 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
316 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
316
mg/L as CaCO₃ equivalent
Grains per gallon
18.5
1 GPG ≈ 17.1 PPM
What this means at home
At 316 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
62
Nearest site
1.6 mi
Observation range
Jan 22, 2016–Jun 1, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: JT-67-23-6XX (Well).USGS source documentation ↗
Regional context
Is 78941 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Flatonia median
316 PPM
About the same1 indexed ZIP readings · Range 316–316 PPM
Texas median
111 PPM
205 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 pass1 fail
Lead (PB90)
0.005 mg/L
Reported Dec 31, 2023
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.005
EPA limit 0.015
Arsenic
Measured in MG/L
Local 0.011
EPA limit 0.01
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 10
- Health-based
- 2
- Active health-based
- 2
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | TX0750002 | Unaddressed | Apr 2, 2026 |
| ArsenicHealth-basedReported 0.011 MG/L · MCL 0.01 | TX0750002 | Unaddressed | Apr 1, 2026through Jun 30, 2026 |
| Chlorine | TX0750002 | Archived | Oct 1, 2025through Dec 31, 2025 |
| Consumer Confidence Rule | TX0750002 | Unaddressed | Jul 1, 2025 |
| Chlorine | TX0750002 | Archived | Jul 1, 2025through Sep 30, 2025 |
| Public Notice | TX0750002 | Unaddressed | Jun 30, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | TX0750002 | Unaddressed | Oct 17, 2024 |
| LEAD AND COPPER RULE REVISIONS | TX0750002 | Unaddressed | Oct 17, 2024 |
| Public Notice | TX0750002 | Resolved | Sep 1, 2023through Oct 6, 2023 |
| Revised Total Coliform Rule | TX0750002 | Resolved | Aug 1, 2022through Aug 31, 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 Flatonia ZIP 78941 using 316 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
316 PPM is 3× 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
Arsenic, LEAD AND COPPER RULE REVISIONS 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
Water questions for Flatonia
Is tap water safe in Flatonia?+
EPA ECHO reports 2 active health-based violations 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 316 PPM, or 18.5 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 316 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.