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City water profile

Commerce water quality

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

Median indexed hardness

180PPM

One indexed ZIP

Range 179.5–179.5 PPM

State comparison
46 PPM below
State hardness rank
#79 of 108
Matched utilities
1
Active health records
1

City summary

What the indexed records say

Commerce has 1 published ZIP profile across Ottawa County. The indexed median is 180 PPM, compared with 226 PPM across Oklahoma.

Among the 108 Oklahomacities with an indexed median, Commerce ranks #79from 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
Hard1 ZIP
Very hard0 ZIPs

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
8 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: May 4, 2016 to Sep 4, 2025.

ZIP directory

Water reports in Commerce

Open a ZIP for site-level provenance and measurements.

ZIP code

74339

Hard

179.5 PPM

Nearest site
8 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Commerce

PWSID OK2005810

Groundwater
System population served
2,645
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
Nitrate-NitriteOK2005810Jan 1, 2025Archived
BHC-GAMMAOK2005810Jan 1, 2025Archived
DiquatOK2005810Jan 1, 2025Archived
GlyphosateOK2005810Jan 1, 2025Archived
SimazineOK2005810Jan 1, 2025Archived
2,4-DOK2005810Jan 1, 2025Archived
MethoxychlorOK2005810Jan 1, 2025Archived
LEAD AND COPPER RULE REVISIONSOK2005810Oct 17, 2024Addressed · health-based
LEAD AND COPPER RULE REVISIONSOK2005810Oct 17, 2024Addressed
Total Haloacetic Acids (HAA5)OK2005810Jan 1, 2024Archived

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 Commerce

Is the water hard?

The indexed city median is 180 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.