Water Hardness Atlas ZIP / postcode

Water hardness in Phoenixville

8.8 gpg hard

Tap water in Phoenixville is hard: 8.8 gpg (151 mg/L · 8.5 °dH · 15.1 °fH).

<6060–120120–180>180 mg/L

Source: Pennsylvania American Water, water quality report (Phoenixville) (2025) · data checked 2026-10-20

Range across supply zones: 120–220 mg/L.

Phoenixville lies in Chester County, where limestone valleys feed the local streams and wells. Pennsylvania American Water reports 151 mg/L CaCO₃, with 120–220 mg/L across the system. Hard water in many areas, with scale on glass and heaters.

USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.

Water data

Total hardness8.8 gpg
UtilityPennsylvania American Water

How Phoenixville compares

Ranking of the hardest and softest water in the United States →

What it means at home

How much salt will you use for softening?

Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.

Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).

Estimates for planning, not a quote. Check your appliance manual for exact settings.

Dishwasher setting in Phoenixville

BrandSetting for this water
BoschH02
Miele8 °dH
AEG / Electrolux2
Beko3rd
HooverS1
LGH2

From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →

FAQ

Is Phoenixville water hard or soft?

It is hard: 151 mg/L as CaCO₃ (8.8 gpg, 8.5 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.

Is tap water in Phoenixville safe to drink?

Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.

How many grains per gallon is Phoenixville water?

8.8 gpg, equal to 8.5 °dH, 15.1 °fH or 151 mg/L calcium carbonate.

What dishwasher salt setting should I use in Phoenixville?

For 151 mg/L (8.5 °dH) check your manufacturer's table: level 4–5.

Do I need a water softener in Phoenixville?

Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.

Source

Source: Pennsylvania American Water, water quality report (Phoenixville) (2025). Method: figure published by the water supplier. Pennsylvania American Water, water quality report (Phoenixville) · Outdated figure? Tell us

Nearby cities

Royersford9.1 gpgNorristown8.7 gpgPhiladelphia8.9 gpgCamden5.8 gpgWilmington3.5 gpgPenns Grove6.7 gpg
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