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City water profile

Chandler water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Chandler, Oklahoma.

Median indexed hardness

380PPM

One indexed ZIP

Range 380–380 PPM

State comparison
154 PPM above
State hardness rank
#23 of 108
Matched utilities
1
Active health records
1

City summary

What the indexed records say

Chandler has 1 published ZIP profile across Lincoln County. The indexed median is 380 PPM, compared with 226 PPM across Oklahoma.

Among the 108 Oklahomacities with an indexed median, Chandler ranks #23from highest to lowest. Across all 148 state ZIP profiles, available estimates run from 7to 610 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

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard1 ZIP

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
22.3 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Jan 5, 2016 to May 21, 2026.

ZIP directory

Water reports in Chandler

Open a ZIP for site-level provenance and measurements.

ZIP code

74834

Very Hard

380 PPM

Nearest site
22.3 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Chandler

PWSID OK1020702

Surface water
System population served
3,142
Last reported
May 13, 2026

A municipal system, in-state city, and served county all agree with this Census 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
TTHMOK1020702Dec 30, 2025Unaddressed
TTHMOK1020702Apr 1, 2025Resolved
LEAD AND COPPER RULE REVISIONSOK1020702Oct 17, 2024Addressed · health-based
LEAD AND COPPER RULE REVISIONSOK1020702Oct 17, 2024Addressed
TTHMOK1020702Jan 1, 2023Resolved · health-based
TTHMOK1020702Jan 1, 2023Resolved · health-based
Lead and Copper RuleOK1020702Jan 1, 2023Resolved
TTHMOK1020702Oct 1, 2022Resolved · health-based
TTHMOK1020702Oct 1, 2022Resolved · health-based
Total Haloacetic Acids (HAA5)OK1020702Sep 29, 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 Chandler

Is the water hard?

The indexed city median is 380 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.