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City water profile

Laredo water quality

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

Median indexed hardness

277PPM

5 indexed ZIPs

Range 171–421 PPM

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

City summary

What the indexed records say

Laredo has 5 published ZIP profiles across Webb County. The indexed median is 277 PPM, compared with 111 PPM across Texas.

Among the 523 Texascities with an indexed median, Laredo ranks #90from highest to lowest. Across all 1,026 state ZIP profiles, available estimates run from 5.4to 500.5 PPM.

The 171–421 PPM range shows how much the available ZIP estimates vary within the city label. 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
Hard2 ZIPs
Very hard3 ZIPs

5 of 5 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
48.8 miles
Profiles with evidence
5/5

Confidence labels

High: 0Moderate: 0Low: 5

Observation window: Jan 11, 2016 to Feb 16, 2016.

ZIP directory

Water reports in Laredo

Open a ZIP for site-level provenance and measurements.

ZIP code

78040

Very Hard

277 PPM

Nearest site
52.2 mi
Confidence
Low

View full ZIP evidence →

ZIP code

78041

Hard

174 PPM

Nearest site
48.8 mi
Confidence
Low

View full ZIP evidence →

ZIP code

78043

Very Hard

277 PPM

Nearest site
48.2 mi
Confidence
Low

View full ZIP evidence →

ZIP code

78045

Hard

171 PPM

Nearest site
34.4 mi
Confidence
Low

View full ZIP evidence →

ZIP code

78046

Very Hard

421 PPM

Nearest site
60.6 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

City Of Laredo

PWSID TX2400001

Surface water
System population served
260,046
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
Revised Total Coliform RuleTX2400001May 1, 2026Archived · health-based
Public NoticeTX2400001May 15, 2025Resolved
LEAD AND COPPER RULE REVISIONSTX2400001Oct 17, 2024Resolved
LEAD AND COPPER RULE REVISIONSTX2400001Oct 17, 2024Resolved · health-based
Revised Total Coliform RuleTX2400001Oct 1, 2024Resolved · health-based
Interim Enhanced Surface Water Treatment RuleTX2400001Sep 1, 2024Resolved
Interim Enhanced Surface Water Treatment RuleTX2400001Sep 1, 2024Resolved
Interim Enhanced Surface Water Treatment RuleTX2400001Aug 1, 2024Resolved
Interim Enhanced Surface Water Treatment RuleTX2400001Aug 1, 2024Resolved
Public NoticeTX2400001Aug 1, 2021Resolved

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 Laredo

Is the water hard?

The indexed city median is 277 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.