Where does the water in 15680 come from?

Water for zip code 15680 in Salina, Pennsylvania is provided by 4 water systems. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 15680

Salina, Pennsylvania · Westmoreland County

100 PPM

5.9 GPG

Slightly Hard

0Soft60120180300+

High Confidence - USGS Monitoring

Dataset updated March 9, 2026Matched to 4 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 4 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

1 USGS-backed source

4 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.

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 15680

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.

4 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.

Water System	Source	Hardness	Pop. Served	Data Source
Mawc Sweeney Plant PA5650032	surface water	134 PPM Moderately Hard	143,000	Estimated - Nearby Data
New Kensington Muni Auth PA5650070	surface water	80 PPM Slightly Hard	47,800	High Confidence - USGS Monitoring
Latrobe Muni Auth PA5650060	surface water	16 PPM Soft	30,000	Estimated - Nearby Data
Highridge Water Auth PA5650069	surface water	16 PPM Soft	16,000	Estimated - Nearby Data

Mawc Sweeney Plant

PA5650032

Moderately Hard

134 PPMsurface water143,000 servedEstimated - Nearby Data

New Kensington Muni Auth

PA5650070

Slightly Hard

80 PPMsurface water47,800 servedHigh Confidence - USGS Monitoring

Latrobe Muni Auth

PA5650060

Soft

16 PPMsurface water30,000 servedEstimated - Nearby Data

Highridge Water Auth

PA5650069

Soft

16 PPMsurface water16,000 servedEstimated - Nearby Data

Nearby Zip Codes

15681139 15613100 15684100 15618100 15673130 15629100 15686130 15725139 15632100 15670100 15690100 15626100

What This Means For You

Use this ZIP reading as a local planning estimate, not a final treatment specification. Hardness can vary by utility zone, seasonal blend, private well, and building plumbing. Confirm your tap reading with a utility report or home hardness test before sizing equipment.

Methodology Data sources 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 Salina, PA (15680).

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Frequently Asked Questions

Is the water hard in Salina, PA (15680)?

The average water hardness in 15680 is 100 PPM (5.9 GPG), which is classified as slightly hard.

Do I need a water softener in 15680?

At 100 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 15680 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 15680?

Zip code 15680 in Salina, Pennsylvania is served by 4 water systems.