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City water profile

Eloy water quality

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

Median indexed hardness

297PPM

2 indexed ZIPs

Range 288–306.5 PPM

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

City summary

What the indexed records say

Eloy has 2 published ZIP profiles across Pinal County. The indexed median is 297 PPM, compared with 241 PPM across Arizona.

Among the 133 Arizonacities with an indexed median, Eloy ranks #24from highest to lowest. Across all 285 state ZIP profiles, available estimates run from 66.4to 1250 PPM.

The 288–306.5 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
42.2 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 0Low: 2

Observation window: Jan 11, 2016 to Dec 18, 2024.

ZIP directory

Water reports in Eloy

Open a ZIP for site-level provenance and measurements.

ZIP code

85123

Very Hard

288 PPM

Nearest site
42.2 mi
Confidence
Low

View full ZIP evidence →

ZIP code

85131

Very Hard

306.5 PPM

Nearest site
35.1 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Cca - Eloy Complex

PWSID AZ0411115

Groundwater
System population served
8,852
Last reported
May 14, 2026

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

Eloy City Of

PWSID AZ0411030

Groundwater
System population served
7,903
Last reported
May 14, 2026

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

Silverbell Irrigation & Drainage Dist

PWSID AZ0411005

Groundwater
System population served
375
Last reported
May 14, 2026

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

Villa Grande Dwid

PWSID AZ0411321

Groundwater
System population served
283
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
NitrateAZ0411030Jan 1, 2026Archived · health-based
NitrateAZ0411030Jan 1, 2026Archived · health-based
Lead and Copper RuleAZ0411005Jan 1, 2026Resolved
Revised Total Coliform RuleAZ0411030Dec 1, 2025Resolved
Consumer Confidence RuleAZ0411005Oct 2, 2025Resolved
Consumer Confidence RuleAZ0411321Oct 2, 2025Resolved
ArsenicAZ0411115Oct 1, 2025Resolved
Lead and Copper RuleAZ0411030Oct 1, 2025Resolved
ChlorineAZ0411005May 1, 2025Resolved
ChlorineAZ0411321May 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 Eloy

Is the water hard?

The indexed city median is 297 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.