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Water Hardness in 74446

Okay, Oklahoma · Wagoner County

138 PPM
8.1 GPG
Moderately Hard
0Soft60120180300+
Verified — Annual Water Quality Report

Dataset updated March 9, 2026Matched to 5 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 5 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis
3 verified treated-water sources
5 matched systems total for this ZIP; treated-water reports are prioritized when available.
Water source profile
Primarily surface water
Surface-water hardness can shift with reservoirs, runoff, season, and treatment. This profile is weighted by known population served across matched systems.
Data recency
March 9, 2026
Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.

Water Systems Serving 74446

These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.

5 water systems
PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.
Wagoner Co. Rwd #4
OK1021529
Moderately Hard
140 PPMsurface water25,792 servedVerified — Annual Water Quality Report
Source water: 40 PPM
Wagoner
OK1021649
Moderately Hard
140 PPMsurface water7,982 servedVerified — Annual Water Quality Report
Source water: 110 PPM
Wagoner Co. Rwd #2
OK1021643
Moderately Hard
140 PPMsurface water2,000 servedVerified — Annual Water Quality Report
Source water: 110 PPM
Wagoner Co. Rwd #7 (New)
OK1221626
Slightly Hard
98 PPMsurface water1,110 servedEstimated — Nearby Data
Okay Pwa
OK3007351
Slightly Hard
98 PPMsurface water767 servedEstimated — Nearby Data

Nearby Zip Codes

What This Means For You

Recommendations are based on the displayed ZIP hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

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If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Okay, OK (74446).

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Frequently Asked Questions

Is the water hard in Okay, OK (74446)?

The average water hardness in 74446 is 138 PPM (8.1 GPG), which is classified as moderately hard.

Do I need a water softener in 74446?

With hardness of 138 PPM, a water softener is worth considering for homes in 74446.

Is hard water in 74446 safe to drink?

Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.

How many water systems serve 74446?

Zip code 74446 in Okay, Oklahoma is served by 5 water systems.

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