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Greensburg, PA · 311,784 people served · EPA data 2021–2026

Tap water quality in Greensburg, Pennsylvania

Greensburg's water systems logged 2 health-based EPA violations in 2021–2026, most recently in 2022 — a modest record, with surface water treatment rule the issue found. For context, Pennsylvania's systems average 1.6 health-based violations each.

C-Fair
Greensburg 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, 2021–20262
Surface Water Treatment Rule1
Total Haloacetic Acids (Haa5)1
Mawc Sweeney Plant143,000 served
Mawc Yough Plant133,000 served
West Cnty Muni Auth-McKeesport32,644 served
Mawc Furnace Run3,100 served
Pennsylvania quality rank#50 / 51 (75.9/100)
Pennsylvania avg hardness120 PPM (moderately hard)
Want to know what's actually in your Greensburg 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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Greensburg tap water FAQ

Is tap water safe to drink in Greensburg?

Greensburg's systems logged 2 health-based violations in 2021–2026, most commonly surface water treatment 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 Greensburg's water?

Mawc Sweeney Plant (serving about 143,000 people); Mawc Yough Plant (serving about 133,000 people); West Cnty Muni Auth-McKeesport (serving about 32,644 people); Mawc Furnace Run (serving about 3,100 people). Data: EPA Safe Drinking Water Information System, July 2026.

How hard is the water in Greensburg?

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 Greensburg'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 Greensburg?

With 2 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 Greensburg 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.