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Burlingame, CA · 884,627 people served · EPA data 2021–2026

Tap water quality in Burlingame, California

Burlingame's water systems logged zero health-based EPA violations in 2021–2026 — water that met every federal health standard on record. Day-to-day quality still varies with pipes and plumbing, but the municipal record here is clean.

BGood
Burlingame water grade: B
Good — our A–F grade from this city's EPA compliance record, relative to California and the nation. How we grade →
Health-based violations, 2021–20260
Federal health standardsall met
Sfpuc City Distribution Division848,019 served
City Of Burlingame31,451 served
Treasure Island3,864 served
San Francisco Regional Water System600 served
California quality rank#25 / 51 (83.7/100)
California avg hardness200 PPM (very hard)
Want to know what's actually in your Burlingame 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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Burlingame tap water FAQ

Is tap water safe to drink in Burlingame?

Burlingame's community water systems reported no health-based EPA violations in 2021–2026, meaning the water met federal health standards throughout. Home plumbing (especially pre-1986 lead solder or service lines) can still affect what reaches your glass — a home test settles it.

Who supplies Burlingame's water?

Sfpuc City Distribution Division (serving about 848,019 people); City Of Burlingame (serving about 31,451 people); Treasure Island (serving about 3,864 people); San Francisco Regional Water System (serving about 600 people). Data: EPA Safe Drinking Water Information System, July 2026.

How hard is the water in Burlingame?

City-level hardness isn't published in a single federal dataset, but California averages 200 PPM — "very hard" on the USGS scale. Your utility's water quality report lists Burlingame'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 Burlingame?

The municipal record is clean, so filtering in Burlingame is about taste, hardness and your own plumbing rather than compliance. A carbon filter fixes chlorine taste; test first if your home predates 1986 (lead solder era).

Want to know what's actually in your Burlingame 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.