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City water profile

Marlin water quality

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

Median indexed hardness

173PPM

One indexed ZIP

Range 173–173 PPM

State comparison
62 PPM above
State hardness rank
#243 of 523
Matched utilities
1
Active health records
1

City summary

What the indexed records say

Marlin has 1 published ZIP profile across Falls County. The indexed median is 173 PPM, compared with 111 PPM across Texas.

Among the 523 Texascities with an indexed median, Marlin ranks #243from 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
Hard1 ZIP
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
45.8 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Jan 28, 2016 to Aug 26, 2020.

ZIP directory

Water reports in Marlin

Open a ZIP for site-level provenance and measurements.

ZIP code

76661

Hard

173 PPM

Nearest site
45.8 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

City Of Marlin

PWSID TX0730002

Surface water
System population served
5,967
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

1 unique active health-based record appears among associated systems. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Total Haloacetic Acids (HAA5)TX0730002Apr 1, 2026Unaddressed · health-based
Total Haloacetic Acids (HAA5)TX0730002Jan 1, 2026Archived · health-based
TTHMTX0730002Jan 1, 2026Resolved · health-based
TTHMTX0730002Oct 1, 2025Resolved · health-based
Total Haloacetic Acids (HAA5)TX0730002Oct 1, 2025Archived · health-based
Public NoticeTX0730002Aug 25, 2025Unaddressed
Public NoticeTX0730002Aug 25, 2025Unaddressed
LEAD AND COPPER RULE REVISIONSTX0730002Jul 2, 2025Unaddressed
Total Haloacetic Acids (HAA5)TX0730002Jul 1, 2025Resolved · health-based
Consumer Confidence RuleTX0730002Jul 1, 2025Unaddressed

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 Marlin

Is the water hard?

The indexed city median is 173 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.