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City water profile

Hamilton water quality

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

Median indexed hardness

226PPM

One indexed ZIP

Range 226–226 PPM

State comparison
115 PPM above
State hardness rank
#129 of 523
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Hamilton has 1 published ZIP profile across Hamilton County. The indexed median is 226 PPM, compared with 111 PPM across Texas.

Among the 523 Texascities with an indexed median, Hamilton ranks #129from 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. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard1 ZIP

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
41.7 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Aug 31, 2016 to Aug 26, 2020.

ZIP directory

Water reports in Hamilton

Open a ZIP for site-level provenance and measurements.

ZIP code

76531

Very Hard

226 PPM

Nearest site
41.7 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

City Of Hamilton

PWSID TX0970001

Surface water
System population served
2,895
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
Consumer Confidence RuleTX0970001Jul 1, 2025Unaddressed
Lead and Copper RuleTX0970001Dec 30, 2024Resolved
Public NoticeTX0970001Dec 17, 2024Resolved
TTHMTX0970001Jul 1, 2024Resolved · health-based
TTHMTX0970001Apr 1, 2024Resolved · health-based
Public NoticeTX0970001Mar 5, 2024Resolved
TTHMTX0970001Jan 1, 2024Resolved · health-based
TTHMTX0970001Oct 1, 2023Resolved · health-based
TTHMTX0970001Jul 1, 2023Resolved · health-based
TTHMTX0970001Apr 1, 2023Resolved · health-based

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 Hamilton

Is the water hard?

The indexed city median is 226 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.