Hardness
Moderately Hard
115 PPM · 6.7 GPG
Local water dashboard
Official source aggregationWater quality in Groesbeck, TX 76642
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Limestone County.
1 reported benchmark flag
- Primary matched system
- City Of Groesbeck
- Source water
- Surface water
- County
- Limestone 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 4,250 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
115 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
115
mg/L as CaCO₃ equivalent
Grains per gallon
6.7
1 GPG ≈ 17.1 PPM
What this means at home
At 115 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
10
Nearest site
27.9 mi
Observation range
Jan 28, 2016–Apr 16, 2026
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: Tehuacana Ck nr Streetman, TX (Stream).USGS source documentation ↗
Regional context
Is 76642 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Groesbeck median
115 PPM
About the same1 indexed ZIP readings · Range 115–115 PPM
Texas median
111 PPM
About the same1019 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, 2024
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
Total Haloacetic Acids (HAA5)
Measured in MG/L
Local 0.064
EPA limit 0.06
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 6
- Health-based
- 3
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Consumer Confidence Rule | TX1470002 | Resolved | Jul 1, 2025through Jan 21, 2026 |
| Long Term 2 Enhanced Surface Water Treatment Rule | TX1470002 | Resolved | Mar 1, 2025through Mar 31, 2025 |
| Long Term 2 Enhanced Surface Water Treatment RuleHealth-based | TX1470002 | Resolved | Mar 1, 2025through Mar 31, 2025 |
| Long Term 2 Enhanced Surface Water Treatment RuleHealth-based | TX1470002 | Resolved | Feb 1, 2025through Feb 28, 2025 |
| Long Term 2 Enhanced Surface Water Treatment Rule | TX1470002 | Resolved | Feb 1, 2025through Feb 28, 2025 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.064 MG/L · MCL 0.06 | TX1470002 | Resolved | Jan 1, 2021through Mar 31, 2021 |
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 Groesbeck ZIP 76642 using 115 PPM nearby hardness and 2 reported measurement benchmarks.
Drinking water protection
Under-Sink Reverse Osmosis System
Total Haloacetic Acids (HAA5) 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 Groesbeck
Is tap water safe in Groesbeck?+
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 115 PPM, or 6.7 grains per gallon, classified as moderately hard. 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.