Home / Tap Water Quality / New York / Hempstead (T)
Hempstead (T), NY · 640,531 people served · EPA data 2021–2026

Tap water quality in Hempstead (T), New York

Hempstead (T)'s water systems logged 6 health-based EPA violations in 2021–2026, most recently in 2024 — most often lead and copper rule. Health-based violations mean a federal limit or treatment standard was exceeded; check the systems below and your utility's annual report for specifics.

CFair
Hempstead (T) water grade: C
Fair — our A–F grade from this city's EPA compliance record, relative to New York and the nation. How we grade →
Health-based violations, 2021–20266
Lead And Copper Rule6
Liberty Utilities New York - Lynbrook220,000 served
Liberty Utilities New York - Merrick135,000 served
Wa Of Western Nassau120,000 served
Town Of Hempstead Water Department110,000 served
New York quality rank#28 / 51 (83.1/100)
New York avg hardness75 PPM (moderately hard)
Want to know what's actually in your Hempstead (T) 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.

Hempstead (T) tap water FAQ

Is tap water safe to drink in Hempstead (T)?

Hempstead (T)'s systems logged 6 health-based violations in 2021–2026, most commonly lead and copper 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 Hempstead (T)'s water?

Liberty Utilities New York - Lynbrook (serving about 220,000 people); Liberty Utilities New York - Merrick (serving about 135,000 people); Wa Of Western Nassau (serving about 120,000 people); Town Of Hempstead Water Department (serving about 110,000 people). Data: EPA Safe Drinking Water Information System, July 2026.

How hard is the water in Hempstead (T)?

City-level hardness isn't published in a single federal dataset, but New York averages 75 PPM — "moderately hard" on the USGS scale. Your utility's water quality report lists Hempstead (T)'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 Hempstead (T)?

With 6 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 Hempstead (T) 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.