San Bernardino, CA water quality
San Bernardino, CA is served by 28 public water systems, serving 554,360 people combined. Across those systems, we count 41 health-based violations in the last 5 years. The worst Tap Grade among them is D.
Water systems serving San Bernardino
SAN BERNARDINO CITY
SAN BERNARDINO, CA · 214,665 served
SAN BERNARDINO VALLEY WD
SAN BERNARDINO, CA · 109,608 served
BIG BEAR ADMINISTRATION
SAN BERNARDINO, CA · 81,075 served
PARK MOABI
SAN BERNARDINO, CA · 64,267 served
CALICO GHOST TOWN
SAN BERNARDINO, CA · 24,648 served
SBDNO COUNTY SERVICE AREA 64
SAN BERNARDINO, CA · 14,911 served
MUSCOY MWC NO. 1
SAN BERNARDINO, CA · 13,000 served
SBDNO COUNTY SERVICE AREA 70J
SAN BERNARDINO, CA · 12,843 served
GLEN HELEN WATER SYSTEM
SAN BERNARDINO, CA · 5,900 served
GILBERT STREET COMPLEX
SAN BERNARDINO, CA · 3,833 served
CAL TRANS - C.V. KANE
SAN BERNARDINO, CA · 2,200 served
CAL TRANS - DESERT OASIS
SAN BERNARDINO, CA · 2,000 served
DEVORE WC
DEVORE, CA · 1,574 served
SBDNO COUNTY SERVICE AREA 70 CEDAR GLEN
SAN BERNARDINO, CA · 1,240 served
CSA 70 W-3 HACIENDA
SAN BERNARDINO, CA · 611 served
CSA 42 ORO GRANDE
SAN BERNARDINO, CA · 529 served
CSA 70 W-4 PIONEERTOWN
SAN BERNARDINO, CA · 470 served
CSA 70-F MORONGO
SAN BERNARDINO, CA · 300 served
LUCERNE VALLEY PARKS & RECREATION
SAN BERNARDINO, CA · 205 served
CALTRANS - MOUNTAIN PASS JPOE CVEF
SAN BERNARDINO, CA · 149 served
LYTLE CREEK ADMINISTRATION SITE
SAN BERNARDINO, CA · 100 served
RILEYS PLACE
SAN BERNARDINO, CA · 58 served
CAMP WATERMAN MWC
SAN BERNARDINO, CA · 55 served
CSA 29 MIDWAY PARK
SAN BERNARDINO, CA · 28 served
HINKLEY SENIOR REC CENTER
SAN BERNARDINO, CA · 26 served
CALI BURGER
SAN BERNARDINO, CA · 25 served
FALLS PICNIC WATER SYSTEM
SAN BERNARDINO, CA · 25 served
MOJAVE RIVER FORKS REGIONAL PARK
SAN BERNARDINO, CA · 15 served
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Is San Bernardino, CA tap water safe to drink?
28 public water systems serve San Bernardino, CA, with 41 health-based violations in the last 5 years across them. The worst Tap Grade among them is D. A Tap Grade summarizes public EPA compliance records; it is not a determination that water is safe or unsafe to drink.
Does San Bernardino's water have lead in it?
The most recent 90th-percentile lead sample is 12 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in San Bernardino's water?
Yes — at least one water system serving San Bernardino has detected PFAS under UCMR5.
Other cities in California
See all of California →Source: EPA SDWIS/ECHO · Data as of 2026Q2
TapGraded presents public EPA data for information only — it is not health advice and not a determination that any water is safe or unsafe to drink. For health concerns, contact your water utility or local health department.