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City water profile

Gonzales water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Gonzales, Louisiana.

Median indexed hardness

112PPM

One indexed ZIP

Range 112–112 PPM

State comparison
22 PPM above
State hardness rank
#27 of 52
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Gonzales has 1 published ZIP profile across Ascension Parish. The indexed median is 112 PPM, compared with 90 PPM across Louisiana.

Among the 52 Louisianacities with an indexed median, Gonzales ranks #27from highest to lowest. Across all 102 state ZIP profiles, available estimates run from 4.8to 314 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
3.1 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: May 18, 2016 to Jul 22, 2021.

ZIP directory

Water reports in Gonzales

Open a ZIP for site-level provenance and measurements.

ZIP code

70737

Moderately Hard

112 PPM

Nearest site
3.1 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

City Of Gonzales Water System

PWSID LA1005030

Groundwater
System population served
16,806
Last reported
Jun 23, 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 RuleLA1005030Jul 1, 2025Resolved

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 Gonzales

Is the water hard?

The indexed city median is 112 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.