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City water profile

Phoenix water quality

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

Median indexed hardness

211PPM

47 indexed ZIPs

Range 97–295 PPM

State comparison
30 PPM below
State hardness rank
#106 of 133
Matched utilities
9
Active health records
1

City summary

What the indexed records say

Phoenix has 47 published ZIP profiles across Maricopa County. The indexed median is 211 PPM, compared with 241 PPM across Arizona.

Among the 133 Arizonacities with an indexed median, Phoenix ranks #106from highest to lowest. Across all 285 state ZIP profiles, available estimates run from 66.4to 1250 PPM.

The 97–295 PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard4 ZIPs
Hard1 ZIP
Very hard42 ZIPs

47 of 47 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
4.5 miles
Profiles with evidence
47/47

Confidence labels

High: 0Moderate: 47Low: 0

Observation window: Jan 4, 2016 to May 29, 2026.

ZIP directory

Water reports in Phoenix

Open a ZIP for site-level provenance and measurements.

ZIP code

85003

Very Hard

228 PPM

Nearest site
3.6 mi
Confidence
Moderate

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ZIP code

85004

Very Hard

228 PPM

Nearest site
4 mi
Confidence
Moderate

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ZIP code

85006

Very Hard

228 PPM

Nearest site
5.3 mi
Confidence
Moderate

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ZIP code

85007

Very Hard

181 PPM

Nearest site
3 mi
Confidence
Moderate

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ZIP code

85008

Very Hard

228 PPM

Nearest site
4.3 mi
Confidence
Moderate

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ZIP code

85009

Very Hard

181 PPM

Nearest site
2.6 mi
Confidence
Moderate

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ZIP code

85012

Very Hard

211 PPM

Nearest site
4.3 mi
Confidence
Moderate

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ZIP code

85013

Very Hard

211 PPM

Nearest site
4 mi
Confidence
Moderate

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ZIP code

85014

Very Hard

211 PPM

Nearest site
4.5 mi
Confidence
Moderate

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ZIP code

85015

Very Hard

187.5 PPM

Nearest site
4.3 mi
Confidence
Moderate

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ZIP code

85016

Very Hard

211 PPM

Nearest site
5 mi
Confidence
Moderate

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ZIP code

85017

Very Hard

181 PPM

Nearest site
4.8 mi
Confidence
Moderate

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ZIP code

85018

Very Hard

211 PPM

Nearest site
5.5 mi
Confidence
Moderate

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ZIP code

85019

Very Hard

181 PPM

Nearest site
5.2 mi
Confidence
Moderate

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ZIP code

85020

Very Hard

211 PPM

Nearest site
1.5 mi
Confidence
Moderate

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ZIP code

85021

Very Hard

211 PPM

Nearest site
0.9 mi
Confidence
Moderate

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ZIP code

85022

Very Hard

211 PPM

Nearest site
3.6 mi
Confidence
Moderate

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ZIP code

85023

Very Hard

211 PPM

Nearest site
4.6 mi
Confidence
Moderate

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ZIP code

85024

Very Hard

211 PPM

Nearest site
6.9 mi
Confidence
Moderate

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ZIP code

85026

Very Hard

228 PPM

Nearest site
3.4 mi
Confidence
Moderate

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ZIP code

85027

Very Hard

194 PPM

Nearest site
6.6 mi
Confidence
Moderate

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ZIP code

85028

Very Hard

211 PPM

Nearest site
1.4 mi
Confidence
Moderate

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ZIP code

85029

Very Hard

194 PPM

Nearest site
2.4 mi
Confidence
Moderate

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ZIP code

85031

Very Hard

181 PPM

Nearest site
5.5 mi
Confidence
Moderate

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ZIP code

85032

Very Hard

211 PPM

Nearest site
1.9 mi
Confidence
Moderate

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ZIP code

85033

Moderately Hard

120 PPM

Nearest site
5.2 mi
Confidence
Moderate

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ZIP code

85034

Very Hard

228 PPM

Nearest site
2.2 mi
Confidence
Moderate

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ZIP code

85035

Very Hard

238 PPM

Nearest site
4.6 mi
Confidence
Moderate

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ZIP code

85037

Moderately Hard

97 PPM

Nearest site
4 mi
Confidence
Moderate

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ZIP code

85040

Very Hard

228 PPM

Nearest site
1.7 mi
Confidence
Moderate

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ZIP code

85041

Very Hard

238 PPM

Nearest site
1.5 mi
Confidence
Moderate

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ZIP code

85042

Very Hard

295 PPM

Nearest site
4.6 mi
Confidence
Moderate

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ZIP code

85043

Hard

146.5 PPM

Nearest site
2.3 mi
Confidence
Moderate

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ZIP code

85044

Very Hard

261.5 PPM

Nearest site
4.5 mi
Confidence
Moderate

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ZIP code

85045

Very Hard

238 PPM

Nearest site
6.7 mi
Confidence
Moderate

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ZIP code

85048

Very Hard

295 PPM

Nearest site
7.2 mi
Confidence
Moderate

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ZIP code

85050

Very Hard

211 PPM

Nearest site
6.1 mi
Confidence
Moderate

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ZIP code

85051

Very Hard

187.5 PPM

Nearest site
3 mi
Confidence
Moderate

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ZIP code

85053

Very Hard

187.5 PPM

Nearest site
4.7 mi
Confidence
Moderate

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ZIP code

85054

Very Hard

228 PPM

Nearest site
6.4 mi
Confidence
Moderate

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ZIP code

85083

Very Hard

187.5 PPM

Nearest site
7.3 mi
Confidence
Moderate

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ZIP code

85085

Very Hard

211 PPM

Nearest site
10.2 mi
Confidence
Moderate

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ZIP code

85086

Very Hard

194 PPM

Nearest site
13.2 mi
Confidence
Moderate

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ZIP code

85254

Very Hard

228 PPM

Nearest site
2.9 mi
Confidence
Moderate

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ZIP code

85310

Very Hard

187.5 PPM

Nearest site
4.9 mi
Confidence
Moderate

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ZIP code

85339

Moderately Hard

97 PPM

Nearest site
10.5 mi
Confidence
Moderate

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ZIP code

85353

Moderately Hard

97 PPM

Nearest site
3 mi
Confidence
Moderate

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Public water systems

Utilities associated with this city

Phoenix City Of

PWSID AZ0407025

Surface water
System population served
1,695,000
Last reported
May 14, 2026

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

Epcor - North East Agua Fria

PWSID AZ0407531

Groundwater
System population served
14,723
Last reported
May 14, 2026

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

Rose Valley Water Company

PWSID AZ0407065

Groundwater
System population served
6,202
Last reported
May 14, 2026

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

Federal Correction Institution

PWSID AZ0407700

Groundwater
System population served
1,500
Last reported
May 14, 2026

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

Adjc Adobe Mountain School

PWSID AZ0407307

Groundwater
System population served
680
Last reported
May 14, 2026

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

Orangewood Mobile Home Park

PWSID AZ0407682

Groundwater
System population served
500
Last reported
May 14, 2026

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

Michigan Trailer Park

PWSID AZ0407621

Groundwater
System population served
400
Last reported
May 14, 2026

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

Beardsley Water Company 3

PWSID AZ0407511

Groundwater
System population served
96
Last reported
May 14, 2026

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

67 Ave Property Owners Association

PWSID AZ0407280

Groundwater
System population served
40
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

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 RuleAZ0407307Jan 1, 2026Unaddressed
ArsenicAZ0407682Jan 1, 2026Archived · health-based
Revised Total Coliform RuleAZ0407700Dec 1, 2025Archived
Public NoticeAZ0407280Nov 16, 2025Unaddressed
Revised Total Coliform RuleAZ0407621Nov 1, 2025Resolved
Groundwater RuleAZ0407280Oct 29, 2025Unaddressed · health-based
Consumer Confidence RuleAZ0407682Oct 2, 2025Resolved
Consumer Confidence RuleAZ0407280Oct 2, 2025Resolved
ChlorineAZ0407700Oct 1, 2025Archived
Revised Total Coliform RuleAZ0407621Aug 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 Phoenix

Is the water hard?

The indexed city median is 211 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.