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Water Hardness in Spencer, OK

Oklahoma · 1 zip codes · 10 matched water systems

154 PPM
9 GPG
Moderately Hard
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 154 PPM

Dataset updated March 9, 202610 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
Oklahoma City
OK1020902
Water source: surface water
Serves: 644,000
USGS environmental estimate: 216 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 10 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
9 verified treated-water sources
10 matched systems total for this city; 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 in Spencer

These systems are matched to Spencer, OK. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

10 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.
Oklahoma City
OK1020902
Moderately Hard
154 PPMsurface water644,000 servedVerified — Annual Water Quality Report
Source water: 216 PPM
Edmond Pwa
OK1020723
Moderately Hard
154 PPMsurface water79,408 servedVerified — Annual Water Quality Report
Source water: 202 PPM
Midwest City
OK1020806
Moderately Hard
154 PPMsurface water55,935 servedVerified — Annual Water Quality Report
Source water: 216 PPM
Tinker Air Force Base
OK2005508
Moderately Hard
154 PPMgroundwater24,645 servedVerified — Annual Water Quality Report
Source water: 162 PPM
Del City
OK1020805
Moderately Hard
154 PPMsurface water22,128 servedVerified — Annual Water Quality Report
Source water: 216 PPM
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Spencer, OK

What This Means For You

Recommendations are based on the displayed 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 Spencer, OK.

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Frequently Asked Questions

How hard is the water in Spencer, OK?

The citywide weighted average water hardness in Spencer, OK is 154 PPM (9 GPG), classified as moderately hard. This is based on 10 matched water systems. The gauge highlights Oklahoma City, a verified treated-water system, because individual systems can differ from the citywide average.

Do I need a water softener in Spencer, OK?

With a citywide average hardness of 154 PPM, a water softener is worth considering for homes in Spencer. Confirm your tap reading before sizing equipment.

Is hard water in Spencer, OK 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 Spencer, OK?

Spencer, Oklahoma is served by 10 matched water systems across 1 zip code.

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