San Dimas
Yes. Tap water in San Dimas is low risk across 7 water systems. Meets federal drinking water standards.
7 official water systems are listed for this town. Each keeps its own rating.
Is it safe?
East Biggs Water System
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 15,000 people.
Source water: surface water.
Is it safe?
Fort Bliss Main Post Area
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 28,000 people.
Source water: groundwater.
Is it safe?
Gswc - Calipatria
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 7,475 people.
Source water: surface water.
Is it safe?
Gswc - Claremont
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 39,776 people.
Source water: surface water.
Is it safe?
Gswc-san Dimas
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 56,564 people.
Source water: surface water.
Is it safe?
Gswc-south Arcadia
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 27,430 people.
Source water: groundwater.
Is it safe?
Gswc-south San Gabriel
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 26,451 people.
Source water: surface water.
Source
US EPA Safe Drinking Water Information System.
Period covered: October 2023 to September 2026.
Covers community water systems serving 3,300 people or more. The rating uses health-based violations of federal drinking-water standards in the last three years, and whether those violations have been fixed. Each system is placed at a town it serves, so positions are approximate.
Common questions
Can I drink the tap water in San Dimas, California?
Yes. Tap water in San Dimas is low risk across 7 water systems. Meets federal drinking water standards.
Where do these ratings come from?
US EPA Safe Drinking Water Information System. Period covered: October 2023 to September 2026.