Serving roughly 48,479 people in Orange County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for CITY OF BREA
1 water provider directly on file, serving roughly 48,479 people in Orange County, California.
Quick answer: CITY OF BREA has no violations on file and no single reading stands out against its peers (167 other providers in this area). It serves roughly 48,479 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
Lithium
Totalhaloaceticacids (HAA5)
TTHM
Bromoform
Dibromochloromethane
Chloroform
Bromodichloromethane
Dichloroaceticacid
Trichloroaceticacid
Dibromoaceticacid
Utility CITY OF BREAPopulation served 48,479Owner Local government
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2023
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 2.1 UG/L (ppb)
10/15/2025
TTHM
Detected: 1.1 UG/L (ppb)
10/15/2025
A group of disinfection byproducts formed when chlorine reacts with organic matter. Long-term exposure above the legal limit has been linked to increased cancer risk in some studies.
Bromoform
Detected: 2.2 UG/L (ppb)
10/15/2025
Dibromochloromethane
Detected: 1.1 UG/L (ppb)
10/15/2025
Chloroform
Detected: 1 UG/L (ppb)
10/15/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromodichloromethane
Detected: 1.1 UG/L (ppb)
10/15/2025
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
Lithium
Detected: 39.2 µg/L (ppb)
10/19/2023
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 2.1 UG/L (ppb)
10/15/2025
Trichloroaceticacid
Detected: 1.4 UG/L (ppb)
10/15/2025
Dibromoaceticacid
Detected: 1.1 UG/L (ppb)
10/15/2025
Filtration considerations: See the table below for how whole-house carbon, under-sink reverse osmosis, and under-sink carbon systems compare against what's actually on file here. These are general system types, not a specific product recommendation.