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City water profile

Avenal water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Avenal, California.

Median indexed hardness

193PPM

2 indexed ZIPs

Range 188–197 PPM

State comparison
4 PPM above
State hardness rank
#95 of 242
Matched utilities
1
Active health records
1

City summary

What the indexed records say

Avenal has 2 published ZIP profiles across Kings County. The indexed median is 193 PPM, compared with 189 PPM across California.

Among the 242 Californiacities with an indexed median, Avenal ranks #95from highest to lowest. Across all 678 state ZIP profiles, available estimates run from 3.3to 728.5 PPM.

The 188–197 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
Hard0 ZIPs
Very hard2 ZIPs

2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
49.8 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 0Low: 2

Observation window: Apr 6, 2016 to Mar 2, 2023.

ZIP directory

Water reports in Avenal

Open a ZIP for site-level provenance and measurements.

ZIP code

93204

Very Hard

197 PPM

Nearest site
43.7 mi
Confidence
Low

View full ZIP evidence →

ZIP code

93239

Very Hard

188 PPM

Nearest site
49.8 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Avenal, City Of

PWSID CA1610002

Surface water
System population served
13,696
Last reported
Jun 22, 2026

The system names this served city; Census place overlap links the city to this 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
LEAD AND COPPER RULE REVISIONSCA1610002Oct 17, 2024Unaddressed
LEAD AND COPPER RULE REVISIONSCA1610002Oct 17, 2024Unaddressed · health-based
TTHMCA1610002Oct 1, 2022Archived · health-based
TTHMCA1610002Apr 1, 2022Archived · health-based
TTHMCA1610002Jan 1, 2022Archived · health-based
TTHMCA1610002Oct 1, 2021Archived · health-based
TTHMCA1610002Jul 1, 2021Archived · 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 Avenal

Is the water hard?

The indexed city median is 193 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.