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Water Hardness in Selinsgrove, PA

Pennsylvania · 1 zip codes · 6 matched water systems

88 PPM
5.1 GPG
Slightly Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 20266 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

Source context

How this city reading is built

This city reading is a weighted rollup across 6 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
5 USGS-backed sources
6 matched systems total for this city; USGS monitoring is used where treated-water reports are unavailable.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. 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 Selinsgrove

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

6 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.
Selinsgrove Muni Auth
PA4550005
Slightly Hard
88 PPMgroundwater5,584 servedHigh Confidence — USGS Monitoring
Shamokin Dam Borough
PA4550022
Slightly Hard
79 PPMsurface water1,700 servedHigh Confidence — USGS Monitoring
Selinsgrove Center
PA4550800
Slightly Hard
105 PPMsurface water1,000 servedHigh Confidence — USGS Monitoring
Kreamer Mun Auth
PA4550014
Slightly Hard
88 PPMgroundwater980 servedEstimated — County Avg
Penn Township Municipal Auth
PA4550028
Slightly Hard
88 PPMgroundwater672 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Selinsgrove, PA

What This Means For You

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

Slightly Hard Water

Your water is slightly hard. You may notice minor spotting on dishes or a slight film on faucets. A water softener is optional but can improve water quality.

Recommended Products

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | How to Test Your Water

Know your water hardness?

If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Selinsgrove, PA.

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Frequently Asked Questions

How hard is the water in Selinsgrove, PA?

The citywide weighted average water hardness in Selinsgrove, PA is 88 PPM (5.1 GPG), classified as slightly hard. This is based on 6 matched water systems.

Do I need a water softener in Selinsgrove, PA?

At 88 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in Selinsgrove, PA 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 Selinsgrove, PA?

Selinsgrove, Pennsylvania is served by 6 matched water systems across 1 zip code.

Learn More About Your Water