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City water profile

Peoria water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Peoria, Arizona.

Median indexed hardness

120PPM

4 indexed ZIPs

Range 120–128 PPM

State comparison
121 PPM below
State hardness rank
#123 of 133
Matched utilities
3
Active health records
2

City summary

What the indexed records say

Peoria has 4 published ZIP profiles across Maricopa County. The indexed median is 120 PPM, compared with 241 PPM across Arizona.

Among the 133 Arizonacities with an indexed median, Peoria ranks #123from highest to lowest. Across all 285 state ZIP profiles, available estimates run from 66.4to 1250 PPM.

The 120–128 PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard3 ZIPs
Hard1 ZIP
Very hard0 ZIPs

4 of 4 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
2.6 miles
Profiles with evidence
4/4

Confidence labels

High: 0Moderate: 4Low: 0

Observation window: Jan 4, 2016 to Mar 24, 2026.

ZIP directory

Water reports in Peoria

Open a ZIP for site-level provenance and measurements.

ZIP code

85345

Moderately Hard

120 PPM

Nearest site
2.6 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

85381

Moderately Hard

120 PPM

Nearest site
1.5 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

85382

Moderately Hard

120 PPM

Nearest site
2 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

85383

Hard

128 PPM

Nearest site
11.9 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Peoria City Of

PWSID AZ0407096

Surface water
System population served
187,676
Last reported
May 14, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Sunrise Water Company

PWSID AZ0407070

Groundwater
System population served
6,490
Last reported
May 14, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Epcor - Tierra Del Rio

PWSID AZ0407532

Groundwater
System population served
4,868
Last reported
May 14, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

2 unique active health-based records appear among associated systems. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Lead and Copper RuleAZ0407096Jan 1, 2026Unaddressed
Groundwater RuleAZ0407532Sep 17, 2025Unaddressed · health-based
Groundwater RuleAZ0407532Sep 17, 2025Unaddressed · health-based
CARBON, TOTALAZ0407096Mar 1, 2025Resolved
Long Term 2 Enhanced Surface Water Treatment RuleAZ0407096Oct 1, 2024Resolved
NitrateAZ0407096Jan 1, 2024Resolved
ChlorineAZ0407070Jan 1, 2024Resolved
CARBON, TOTALAZ0407096Jan 1, 2022Resolved
BromateAZ0407096Jan 1, 2022Resolved
ChlorineAZ0407070Jan 1, 2022Resolved

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 Peoria

Is the water hard?

The indexed city median is 120 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.