Serving roughly 63,118 people in Orange County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
🏠Local Expertise
Results for CITY OF LA HABRA
1 water provider directly on file, serving roughly 63,118 people in Orange County, California.
Quick answer: CITY OF LA HABRA has no violations on file. One reading is worth knowing about: TTHM was measured at 61.7UG/L, among the highest of the 167 providers on file in this area. It's the most notable figure in this system's record among its 167 local peers.
Lead Summary
Lithium
Carbon, Total
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Utility CITY OF LA HABRAPopulation served 63,118Owner Local government
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2024
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 8.3 UG/L (ppb)
5/8/2025
TTHM
Detected: 61.7 UG/L (ppb)
10/20/2025
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.
Chloroform
Detected: 2.1 UG/L (ppb)
2/17/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
Lithium
Detected: 18.9 µg/L (ppb)
7/28/2025
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
Carbon, Total
Detected: 0.55 MG/L (ppm)
3/3/2025
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.