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Durham, NC · 326,883 people served · EPA data 2021–2026

Tap water quality in Durham, North Carolina

Durham's water systems logged 1 health-based EPA violation in 2021–2026, most recently in 2024 — a modest record, with lead and copper rule revisions the issue found. For context, North Carolina's systems average 1.9 health-based violations each.

A-Excellent
Durham water grade: A-
Excellent — our A–F grade from this city's EPA compliance record, relative to North Carolina and the nation. How we grade →
Health-based violations, 2021–20261
Lead And Copper Rule Revisions1
Durham, City Of322,083 served
Hardscrabble S/D643 served
Greymoss S/D361 served
Willow Hill S/D329 served
North Carolina quality rank#2 / 51 (99.7/100)
North Carolina avg hardness120 PPM (moderately hard)
Want to know what's actually in your Durham 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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Durham tap water FAQ

Is tap water safe to drink in Durham?

Durham's systems logged 1 health-based violation in 2021–2026, most commonly lead and copper rule revisions. 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 Durham's water?

Durham, City Of (serving about 322,083 people); Hardscrabble S/D (serving about 643 people); Greymoss S/D (serving about 361 people); Willow Hill S/D (serving about 329 people). Data: EPA Safe Drinking Water Information System, July 2026.

How hard is the water in Durham?

City-level hardness isn't published in a single federal dataset, but North Carolina averages 120 PPM — "moderately hard" on the USGS scale. Your utility's water quality report lists Durham'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 Durham?

With 1 health-based violation 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 Durham 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.