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City water profile

Ceres water quality

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

Median indexed hardness

253PPM

One indexed ZIP

Range 253–253 PPM

State comparison
64 PPM above
State hardness rank
#49 of 242
Matched utilities
1
Active health records
1

City summary

What the indexed records say

Ceres has 1 published ZIP profile across Stanislaus County. The indexed median is 253 PPM, compared with 189 PPM across California.

Among the 242 Californiacities with an indexed median, Ceres ranks #49from highest to lowest. Across all 678 state ZIP profiles, available estimates run from 3.3to 728.5 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.

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
10.4 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Jan 13, 2016 to Jun 3, 2026.

ZIP directory

Water reports in Ceres

Open a ZIP for site-level provenance and measurements.

ZIP code

95307

Very Hard

253 PPM

Nearest site
10.4 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Ceres, City Of

PWSID CA5010028

Surface water
System population served
54,513
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 REVISIONSCA5010028Oct 17, 2024Unaddressed · health-based
LEAD AND COPPER RULE REVISIONSCA5010028Oct 17, 2024Unaddressed

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 Ceres

Is the water hard?

The indexed city median is 253 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.