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City water profile

Yreka water quality

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

Median indexed hardness

43PPM

One indexed ZIP

Range 42.6–42.6 PPM

State comparison
146 PPM below
State hardness rank
#239 of 242
Matched utilities
1
Active health records
1

City summary

What the indexed records say

Yreka has 1 published ZIP profile across Siskiyou County. The indexed median is 43 PPM, compared with 189 PPM across California.

Among the 242 Californiacities with an indexed median, Yreka ranks #239from 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

Soft1 ZIP
Moderately hard0 ZIPs
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
16.2 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Sep 26, 2019 to May 13, 2026.

ZIP directory

Water reports in Yreka

Open a ZIP for site-level provenance and measurements.

ZIP code

96097

Soft

42.6 PPM

Nearest site
16.2 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Yreka, City Of

PWSID CA4710011

Surface water
System population served
7,825
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 REVISIONSCA4710011Oct 17, 2024Unaddressed
LEAD AND COPPER RULE REVISIONSCA4710011Oct 17, 2024Unaddressed · 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 Yreka

Is the water hard?

The indexed city median is 43 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.