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City water profile

Apache Junction water quality

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

Median indexed hardness

243PPM

2 indexed ZIPs

Range 243–243 PPM

State comparison
2 PPM above
State hardness rank
#83 of 133
Matched utilities
4
Active health records
0

City summary

What the indexed records say

Apache Junction has 2 published ZIP profiles across Pinal County. The indexed median is 243 PPM, compared with 241 PPM across Arizona.

Among the 133 Arizonacities with an indexed median, Apache Junction ranks #83from highest to lowest. Across all 285 state ZIP profiles, available estimates run from 66.4to 1250 PPM.

The 243–243 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
27.1 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 1Low: 1

Observation window: Feb 28, 2018 to Dec 18, 2024.

ZIP directory

Water reports in Apache Junction

Open a ZIP for site-level provenance and measurements.

ZIP code

85119

Very Hard

243 PPM

Nearest site
27.1 mi
Confidence
Low

View full ZIP evidence →

ZIP code

85120

Very Hard

243 PPM

Nearest site
24.2 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Arizona Water Co - Apache Junction

PWSID AZ0411004

Groundwater
System population served
62,055
Last reported
May 14, 2026

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

Apache Junction Water District

PWSID AZ0411039

Surface water
System population served
15,610
Last reported
May 14, 2026

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

Arizonian Rv Resort

PWSID AZ0411708

Groundwater
System population served
225
Last reported
May 14, 2026

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

Northern Section 4 Coop

PWSID AZ0411201

Groundwater
System population served
48
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

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
ChlorineAZ0411708Oct 1, 2025Resolved
Lead and Copper RuleAZ0411201Oct 1, 2025Unaddressed
ChloriteAZ0411039Sep 1, 2025Resolved
ChloriteAZ0411039Sep 1, 2025Resolved
Chlorine dioxideAZ0411039Sep 1, 2025Resolved
Chlorine dioxideAZ0411039Sep 1, 2025Resolved
Public NoticeAZ0411708Jul 25, 2025Unaddressed
Public NoticeAZ0411201Jul 25, 2025Unaddressed
ChloriteAZ0411039Jul 1, 2025Resolved
Surface Water Treatment RuleAZ0411039May 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 Apache Junction

Is the water hard?

The indexed city median is 243 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.