Hardness
Soft
12.1 PPM · 0.7 GPG
Local water dashboard
Official source aggregationWater quality in Fairfield, TX 75840
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Freestone County.
2 active health-based violations
- Primary matched system
- City Of Fairfield
- Source water
- Groundwater
- County
- Freestone 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
0.0026 mg/L
17% of action level
Utility match
3 systems
Serves 3,005 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
12.1 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
12.1
mg/L as CaCO₃ equivalent
Grains per gallon
0.7
1 GPG ≈ 17.1 PPM
What this means at home
At 12.1 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
63.5 mi
Observation range
Dec 5, 2016–Dec 20, 2016
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: ST-40-40-105 (Well).USGS source documentation ↗
Regional context
Is 75840 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Fairfield median
12 PPM
About the same1 indexed ZIP readings · Range 12.1–12.1 PPM
Texas median
111 PPM
99 PPM lower1019 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)
0.0026 mg/L
Reported Jun 30, 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.
Lead (90th percentile)
Measured in mg/L
Local 0.0026
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 34
- Health-based
- 4
- Active health-based
- 2
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | TX0810024 | Unaddressed | Mar 5, 2026 |
| Public Notice | TX0810001 | Unaddressed | Jan 29, 2026 |
| Lead and Copper Rule | TX0810001 | Unaddressed | Jan 1, 2026 |
| Lead and Copper Rule | TX0810024 | Unaddressed | Jan 1, 2026 |
| Lead and Copper RuleHealth-based | TX0810001 | Unaddressed | Oct 1, 2025 |
| Lead and Copper Rule | TX0810001 | Unaddressed | Sep 29, 2025 |
| Lead and Copper Rule | TX0810024 | Unaddressed | Sep 29, 2025 |
| Public Notice | TX0810024 | Unaddressed | Aug 8, 2025 |
| Consumer Confidence Rule | TX0810001 | Unaddressed | Jul 1, 2025 |
| Lead and Copper Rule | TX0810001 | Archived | Jul 1, 2025through Dec 31, 2025 |
| Consumer Confidence Rule | TX0810024 | Unaddressed | Jul 1, 2025 |
| Public Notice | TX0810001 | Unaddressed | Jun 15, 2025 |
| Public Notice | TX0810001 | Unaddressed | Jun 15, 2025 |
| Lead and Copper RuleHealth-based | TX0810001 | Resolved | Apr 1, 2025through May 30, 2025 |
| Lead and Copper RuleHealth-based | TX0810001 | Unaddressed | Mar 31, 2025 |
| Chlorine | TX0810001 | Resolved | Jan 1, 2025through Mar 31, 2025 |
| Lead and Copper Rule | TX0810001 | Archived | Jan 1, 2025through Jun 30, 2025 |
| Chlorine | TX0810024 | Resolved | Jan 1, 2025through Mar 31, 2025 |
| Lead and Copper Rule | TX0810024 | Resolved | Jan 1, 2025through Jul 3, 2025 |
| Lead and Copper Rule | TX0810001 | Resolved | Dec 30, 2024through Mar 6, 2025 |
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 Fairfield ZIP 75840 using 12.1 PPM nearby hardness and 1 reported measurement benchmarks.
Drinking water protection
Under-Sink Reverse Osmosis System
Lead and Copper Rule 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 Fairfield
Is tap water safe in Fairfield?+
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 12.1 PPM, or 0.7 grains per gallon, classified as soft. This is not a household tap measurement.
Do I need a water softener?+
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.