Los Altos Hills Tap Water Quality Report
Los Altos Hills's water has 5 contaminants above EPA MCLGs. We recommend using a certified water filter.
Utilities
3 Utilities
People Served
76,997
MCL Violations
0
Last Updated
Is Los Altos Hills Tap Water Safe to Drink?
Los Altos Hills's water has 5 contaminants above EPA health-based guidelines. We strongly recommend using a certified water filter to reduce exposure to these contaminants. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Los Altos Hills's water.
The data below shows test results from 3 water utilities serving 76,997 people in the Los Altos Hills area. Water quality testing is conducted regularly and reported to the EPA. This report was last updated 2025-10-07.
Los Altos Hills Water Service Areas
Loading service area map...
Recommended Water Filters for Los Altos Hills
Based on Los Altos Hills's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.
Culligan
ZeroWater
NSF Certified:
Flow Rate
1.9 gpm
Daily Production
1 gpd
Removes 19 contaminants:
Nitrate, Copper, Zinc, Barium, Sulfate +14 more
AquaTru
Classic
NSF Certified:
Flow Rate
0.04 gpm
Daily Production
600 gpd
Removes 23 contaminants:
83+, Lead, Fluoride, Strontium, Uranium +18 more
AquaTru
Carafe
NSF Certified:
Flow Rate
0.3 gpm
Daily Production
4 gpd
Removes 17 contaminants:
PFOA, PFOS, Chlorine, Lead, Fluoride +12 more
Waterdrop
A1
NSF Certified:
Flow Rate
0.042 gpm
Daily Production
130 gpd
Removes 12 contaminants:
10+, 10+ contaminants, Fluoride, Uranium, Copper +7 more
Verify Your Water Quality with Independent Testing
With 5 contaminants above EPA health guidelines, independent laboratory testing provides a second opinion and can track changes over time.
SimpleLab
Advanced Home Water Test
$369
Most comprehensive home water test including all standard tests plus additional parameters for ultimate peace of mind.
SimpleLab
Standard Home Water Test
$232
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
Tap Score
Advanced Microplastics Test
$636
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
Frequently Asked Questions About Los Altos Hills Tap Water
Los Altos Hills's water has 5 contaminants above EPA MCLGs. We strongly recommend using a certified water filter to reduce exposure to these contaminants. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Los Altos Hills's water.
Stay Informed About Your Water Quality
Get EPA reports, filter recommendations, and safety alerts for your area.
Join 10,000+ people protecting their families. Unsubscribe anytime.