Hardness
Moderately Hard
100 PPM · 5.8 GPG
Local water dashboard
Official source aggregationWater quality in Trinidad, TX 75163
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Henderson County.
1 reported benchmark flag
- Primary matched system
- City Of Trinidad
- Source water
- Surface water
- County
- Henderson 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 1,482 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
100 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
100
mg/L as CaCO₃ equivalent
Grains per gallon
5.8
1 GPG ≈ 17.1 PPM
What this means at home
At 100 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
47
Nearest site
23.6 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: Chambers Ck nr Rice, TX (Stream).USGS source documentation ↗
Regional context
Is 75163 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Trinidad median
100 PPM
About the same1 indexed ZIP readings · Range 100–100 PPM
Texas median
111 PPM
11 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 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
TTHM
Measured in MG/L
Local 0.097
EPA limit 0.08
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 20
- Health-based
- 4
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Surface Water Treatment Rule | TX1070004 | Archived | Jan 1, 2026through Jan 31, 2026 |
| Interim Enhanced Surface Water Treatment Rule | TX1070004 | Archived | Jan 1, 2026through Jan 31, 2026 |
| Interim Enhanced Surface Water Treatment Rule | TX1070004 | Resolved | Nov 1, 2025through Nov 30, 2025 |
| Lead and Copper Rule | TX1070004 | Unaddressed | Oct 1, 2025 |
| Interim Enhanced Surface Water Treatment Rule | TX1070004 | Resolved | Sep 1, 2025through Sep 30, 2025 |
| Public Notice | TX1070004 | Resolved | Feb 26, 2024through Apr 8, 2024 |
| Public Notice | TX1070004 | Resolved | Jan 19, 2024through Apr 8, 2024 |
| TTHMHealth-basedReported 0.097 MG/L · MCL 0.08 | TX1070004 | Resolved | Jan 1, 2024through Mar 31, 2024 |
| TTHMHealth-basedReported 0.097 MG/L · MCL 0.08 | TX1070004 | Resolved | Oct 1, 2023through Dec 31, 2023 |
| Public Notice | TX1070004 | Resolved | Aug 17, 2023through Apr 8, 2024 |
| Public Notice | TX1070004 | Resolved | Jul 7, 2023through Dec 18, 2023 |
| TTHMHealth-basedReported 0.097 MG/L · MCL 0.08 | TX1070004 | Resolved | Jul 1, 2023through Sep 30, 2023 |
| Public Notice | TX1070004 | Resolved | May 5, 2023through Apr 8, 2024 |
| TTHMHealth-basedReported 0.096 MG/L · MCL 0.08 | TX1070004 | Resolved | Apr 1, 2023through Jun 30, 2023 |
| Public Notice | TX1070004 | Resolved | Jan 15, 2023through Apr 8, 2024 |
| Interim Enhanced Surface Water Treatment Rule | TX1070004 | Resolved | Nov 1, 2022through Nov 30, 2022 |
| CARBON, TOTAL | TX1070004 | Resolved | Oct 1, 2022through Dec 31, 2022 |
| Interim Enhanced Surface Water Treatment Rule | TX1070004 | Resolved | Mar 1, 2022through Mar 31, 2022 |
| Lead and Copper Rule | TX1070004 | Resolved | Jan 1, 2022through Jun 30, 2022 |
| Interim Enhanced Surface Water Treatment Rule | TX1070004 | Resolved | Oct 1, 2021through Oct 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 Trinidad ZIP 75163 using 100 PPM nearby hardness and 2 reported measurement benchmarks.
Drinking water protection
Under-Sink Reverse Osmosis System
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.
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 Trinidad
Is tap water safe in Trinidad?+
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 100 PPM, or 5.8 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.