City water profile

Water hardness in Commerce

Find official utility reports, understand hardness, and check the water system serving your home in Commerce, Oklahoma.

Utility-reported hardness

Not yet available

Check your provider and source →

State comparison: Unavailable
Evidence comparison rank: —
Matched utilities: 1
Active health records: 1

Your tap water

What does the utility report?

Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.

Utility hardness unavailable in this index

Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.

Find an official utility report →

Convert a hardness result →Test your tap →

Match the name on your water bill

Your utility’s measurements and compliance records

These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.

EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.

Commerce

OK2005810 · Groundwater · 2,645 people served system-wide

A municipal system, in-state city, and served county all agree with this Census ZCTA.

1 reported active health-based record(s) for this system

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.001 mg/L
Action level: 0.015 mg/L

7% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (35)

Imported violation history for Commerce
Rule	Status	Period
Nitrate-Nitrite	Archived	Jan 1, 2025 to Dec 31, 2025
BHC-GAMMA	Archived	Jan 1, 2025 to Dec 31, 2025
Diquat	Archived	Jan 1, 2025 to Dec 31, 2025
Glyphosate	Archived	Jan 1, 2025 to Dec 31, 2025
Simazine	Archived	Jan 1, 2025 to Dec 31, 2025
2,4-D	Archived	Jan 1, 2025 to Dec 31, 2025
Methoxychlor	Archived	Jan 1, 2025 to Dec 31, 2025
LEAD AND COPPER RULE REVISIONSHealth-based	Addressed	Oct 17, 2024
LEAD AND COPPER RULE REVISIONS	Addressed	Oct 17, 2024
Total Haloacetic Acids (HAA5)	Archived	Jan 1, 2024 to Dec 31, 2024
TTHM	Archived	Jan 1, 2024 to Dec 31, 2024
Arsenic	Archived	Jan 1, 2023 to Dec 31, 2025
Arsenic	Archived	Jan 1, 2023 to Dec 31, 2025
1,2,4-Trichlorobenzene	Archived	Jan 1, 2023 to Dec 31, 2025
cis-1,2-Dichloroethylene	Archived	Jan 1, 2023 to Dec 31, 2025
Xylenes, Total	Archived	Jan 1, 2023 to Dec 31, 2025
o-Dichlorobenzene	Archived	Jan 1, 2023 to Dec 31, 2025
Vinyl chloride	Archived	Jan 1, 2023 to Dec 31, 2025
1,2-Dichloropropane	Archived	Jan 1, 2023 to Dec 31, 2025
Trichloroethylene	Archived	Jan 1, 2023 to Dec 31, 2025
1,1,2-Trichloroethane	Archived	Jan 1, 2023 to Dec 31, 2025
Tetrachloroethylene	Archived	Jan 1, 2023 to Dec 31, 2025
CHLOROBENZENE	Archived	Jan 1, 2023 to Dec 31, 2025
Benzene	Archived	Jan 1, 2023 to Dec 31, 2025
Ethylbenzene	Archived	Jan 1, 2023 to Dec 31, 2025
Styrene	Archived	Jan 1, 2023 to Dec 31, 2025
1,1,1-Trichloroethane	Archived	Jan 1, 2023 to Dec 31, 2025
trans-1,2-Dichloroethylene	Archived	Jan 1, 2023 to Dec 31, 2025
Carbon tetrachloride	Archived	Jan 1, 2023 to Dec 31, 2025
Toluene	Archived	Jan 1, 2023 to Dec 31, 2025
DICHLOROMETHANE	Archived	Jan 1, 2023 to Dec 31, 2025
1,1-Dichloroethylene	Archived	Jan 1, 2023 to Dec 31, 2025
1,2-Dichloroethane	Archived	Jan 1, 2023 to Dec 31, 2025
p-Dichlorobenzene	Archived	Jan 1, 2023 to Dec 31, 2025
E. COLI	Resolved	Jul 15, 2021 to Nov 16, 2021

City summary

What the indexed records say

Commerce has 1 published ZIP profile across Ottawa County. The regional-evidence median is 143 PPM. The city does not meet the stricter comparison standard.

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. 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

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: 0Low: 1

Observation window: Jun 9, 2016 to Jun 13, 2017.

ZIP directory

Water reports in Commerce

Open a ZIP for site-level provenance and measurements.

ZIP code

74339

Hard

143 PPM

Nearest site: 8 mi
Confidence: Low

View full ZIP evidence →

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other Oklahoma communities

Miami

Ottawa County

143 PPM median

Woodward

Woodward County

140 PPM median

Mooreland

Woodward County

140 PPM median

Grove

Delaware County

148 PPM median

Cushing

Payne County

149 PPM median

Tonkawa

Kay County

130 PPM median

Search all 108 Oklahoma cities →

Questions people ask

About water in Commerce

Is the water hard?

Check the utility-reported result above when available. Nearby environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

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.