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Bryn Mawr, PA · 1,057,337 people served · EPA data 2021–2026

Tap water quality in Bryn Mawr, Pennsylvania

Bryn Mawr's water systems logged 3 health-based EPA violations in 2021–2026, most recently in 2025 — a modest record, with groundwater rule the issue found. For context, Pennsylvania's systems average 1.6 health-based violations each.

CFair
Bryn Mawr water grade: C
Fair — our A–F grade from this city's EPA compliance record, relative to Pennsylvania and the nation. How we grade →
Health-based violations, 2021–20263
Groundwater Rule3
Aqua Pa Main System822,600 served
Aqua Pa Bensalem59,001 served
Aqua Pa West Chester48,600 served
Aqua Pa Uwchlan35,518 served
Pennsylvania quality rank#50 / 51 (75.9/100)
Pennsylvania avg hardness120 PPM (moderately hard)
Want to know what's actually in your Bryn Mawr water?

Averages describe states, not your faucet. A certified home water test screens for lead, nitrates, bacteria and dozens of other contaminants — the same categories EPA regulates.

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Bryn Mawr tap water FAQ

Is tap water safe to drink in Bryn Mawr?

Bryn Mawr's systems logged 3 health-based violations in 2021–2026, most commonly groundwater rule. A violation is a red flag for a period of time, not a permanent condition — your utility's current Consumer Confidence Report shows today's status, and a certified home test shows what's at your tap.

Who supplies Bryn Mawr's water?

Aqua Pa Main System (serving about 822,600 people); Aqua Pa Bensalem (serving about 59,001 people); Aqua Pa West Chester (serving about 48,600 people); Aqua Pa Uwchlan (serving about 35,518 people). Data: EPA Safe Drinking Water Information System, July 2026.

How hard is the water in Bryn Mawr?

City-level hardness isn't published in a single federal dataset, but Pennsylvania averages 120 PPM — "moderately hard" on the USGS scale. Your utility's water quality report lists Bryn Mawr's exact hardness, or a $10 test strip tells you in a minute. If it comes back over 120 PPM, see our water softener guidance in the purification calculator.

Do I need a water filter in Bryn Mawr?

With 3 health-based violations on record in 2021–2026, a certified filter is reasonable insurance here: reverse osmosis ($150–$1,300 installed, Angi 2026) covers lead, nitrates and PFAS at the tap. Test first ($50–$200) so you buy for what's actually present.

Want to know what's actually in your Bryn Mawr water?

Averages describe states, not your faucet. A certified home water test screens for lead, nitrates, bacteria and dozens of other contaminants — the same categories EPA regulates.

Test your water at home

We may earn a commission if you request quotes through this link. It costs you nothing and never affects the data we publish.