Hardness
Very Hard
248.5 PPM · 14.5 GPG
Local water dashboard
Official source aggregationWater quality in Hart, TX 79043
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Castro County.
1 reported benchmark flag
- Primary matched system
- Hart Municipal Water System
- Source water
- Groundwater
- County
- Castro County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
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 1,000 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
248.5 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
248.5
mg/L as CaCO₃ equivalent
Grains per gallon
14.5
1 GPG ≈ 17.1 PPM
What this means at home
At 248.5 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
54
Nearest site
25.1 mi
Observation range
May 23, 2016–Jun 17, 2022
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: KY-11-51-414 (Well).USGS source documentation ↗
Regional context
Is 79043 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Hart median
249 PPM
About the same1 indexed ZIP readings · Range 248.5–248.5 PPM
Texas median
111 PPM
138 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 mg/L
Reported Dec 31, 2022
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
EPA limit 0.015
Benzene
Measured in MG/L
Local 0.007
EPA limit 0.005
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 14
- Health-based
- 6
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Lead and Copper Rule | TX0350002 | Unaddressed | Oct 1, 2025 |
| Consumer Confidence Rule | TX0350002 | Resolved | Jul 1, 2025through May 19, 2026 |
| Public Notice | TX0350002 | Resolved | May 1, 2025through Jun 12, 2025 |
| Chlorine | TX0350002 | Resolved | Apr 1, 2025through Jun 30, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | TX0350002 | Resolved | Oct 17, 2024through May 6, 2026 |
| LEAD AND COPPER RULE REVISIONS | TX0350002 | Resolved | Oct 17, 2024through May 6, 2026 |
| Consumer Confidence Rule | TX0350002 | Resolved | Jul 2, 2024through Jun 27, 2025 |
| Public Notice | TX0350002 | Resolved | Feb 2, 2024through Mar 13, 2024 |
| BenzeneHealth-basedReported 0.007 MG/L · MCL 0.005 | TX0350002 | Resolved | Jan 1, 2024through Mar 31, 2024 |
| Public Notice | TX0350002 | Resolved | Nov 22, 2023through Mar 13, 2024 |
| BenzeneHealth-basedReported 0.008 MG/L · MCL 0.005 | TX0350002 | Resolved | Oct 1, 2023through Dec 31, 2023 |
| BenzeneHealth-basedReported 0.009 MG/L · MCL 0.005 | TX0350002 | Resolved | Jul 1, 2023through Sep 30, 2023 |
| BenzeneHealth-basedReported 0.009 MG/L · MCL 0.005 | TX0350002 | Resolved | Apr 1, 2023through Jun 30, 2023 |
| BenzeneHealth-basedReported 0.007 MG/L · MCL 0.005 | TX0350002 | Resolved | Jan 1, 2023through Mar 31, 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
Your personalized water action plan
Matched to Hart ZIP 79043 using 248.5 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
248.5 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
Benzene 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 Hart
Is tap water safe in Hart?+
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.
How hard is the water?+
Nearby USGS observations produce an estimate of 248.5 PPM, or 14.5 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 248.5 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.