Hardness
Moderately Hard
101 PPM · 5.9 GPG
Local water dashboard
Official source aggregationA source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Navarro County.
At a glance
EPA quarter 2026Q2
Hardness
Moderately Hard
101 PPM · 5.9 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0026 mg/L
18% of action level
Utility match
1 system
Serves 1,520 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
101 PPM
Parts per million
101
mg/L as CaCO₃ equivalent
Grains per gallon
5.9
1 GPG ≈ 17.1 PPM
What this means at home
At 101 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
49
Nearest site
18.6 mi
Observation range
Jan 5, 2016–Jun 4, 2026
Estimate confidence
Moderate
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
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Kerens median
101 PPM
About the same1 indexed ZIP readings · Range 101–101 PPM
Texas median
111 PPM
10 PPM lower1019 indexed ZIP readings · Range 5.4–500.5 PPM
EPA benchmark screen
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
Lead (PB90)
0.0026 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.
Measured in mg/L
Local 0.0026
EPA limit 0.015
Measured in MG/L
Local 0.089
EPA limit 0.08
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| LEAD AND COPPER RULE REVISIONS | TX1750005 | Resolved | Jul 2, 2025through May 29, 2026 |
| Public Notice | TX1750005 | Resolved | Aug 29, 2024through Oct 7, 2024 |
| TTHMHealth-basedReported 0.089 MG/L · MCL 0.08 | TX1750005 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| TTHMHealth-basedReported 0.091 MG/L · MCL 0.08 | TX1750005 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| TTHMHealth-basedReported 0.087 MG/L · MCL 0.08 | TX1750005 | Resolved | Apr 1, 2024through Jun 30, 2024 |
| TTHMHealth-basedReported 0.092 MG/L · MCL 0.08 | TX1750005 | Resolved | Jan 1, 2024through Mar 31, 2024 |
| TTHMHealth-basedReported 0.095 MG/L · MCL 0.08 | TX1750005 | Resolved | Oct 1, 2023through Dec 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
Matched to Kerens ZIP 75144 using 101 PPM nearby hardness and 2 reported measurement benchmarks.
Drinking water protection
TTHM 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.
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Frequently asked
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.
Nearby USGS observations produce an estimate of 101 PPM, or 5.9 grains per gallon, classified as moderately hard. This is not a household tap measurement.
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.