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City water profile

Trinidad water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Trinidad, Texas.

Median indexed hardness

100PPM

One indexed ZIP

Range 100–100 PPM

State comparison
11 PPM below
State hardness rank
#394 of 523
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Trinidad has 1 published ZIP profile across Henderson County. The indexed median is 100 PPM, compared with 111 PPM across Texas.

Among the 523 Texascities with an indexed median, Trinidad ranks #394from highest to lowest. Across all 1,026 state ZIP profiles, available estimates run from 5.4to 500.5 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard1 ZIP
Hard0 ZIPs
Very hard0 ZIPs

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
23.6 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Jan 5, 2016 to Jun 4, 2026.

ZIP directory

Water reports in Trinidad

Open a ZIP for site-level provenance and measurements.

ZIP code

75163

Moderately Hard

100 PPM

Nearest site
23.6 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

City Of Trinidad

PWSID TX1070004

Surface water
System population served
1,482
Last reported
Jun 26, 2026

A municipal system, in-state city, and served county all agree with this Census ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Surface Water Treatment RuleTX1070004Jan 1, 2026Archived
Interim Enhanced Surface Water Treatment RuleTX1070004Jan 1, 2026Archived
Interim Enhanced Surface Water Treatment RuleTX1070004Nov 1, 2025Resolved
Lead and Copper RuleTX1070004Oct 1, 2025Unaddressed
Interim Enhanced Surface Water Treatment RuleTX1070004Sep 1, 2025Resolved
Public NoticeTX1070004Feb 26, 2024Resolved
Public NoticeTX1070004Jan 19, 2024Resolved
TTHMTX1070004Jan 1, 2024Resolved · health-based
TTHMTX1070004Oct 1, 2023Resolved · health-based
Public NoticeTX1070004Aug 17, 2023Resolved

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Trinidad

Is the water hard?

The indexed city median is 100 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.