Houston Tap Water Quality Report
Houston's water quality meets all EPA MCLGs. All tested contaminants are within safe levels.
Utility
HOUSTON WATER SYSTEM
People Served
2,090
MCL Violations
0
Last Updated
Dec 14, 2020
Is Houston Tap Water Safe to Drink?
Houston's tap water currently meets all EPA Maximum Contaminant Level Goals (MCLGs). All 20+ contaminants tested are within safe levels according to health-based guidelines. The water is considered safe to drink, though some people may still prefer filtered water for taste or extra protection.
The data below shows test results from HOUSTON WATER SYSTEM, which serves 2,090 people in the Houston area. Water quality testing is conducted regularly and reported to the EPA. This report was last updated Dec 14, 2020.
Houston Water Quality Test Results
Key Water Quality Metrics
Contaminants Detected
Understanding the Data
This data comes from your local water utility testing. The bar charts compare detected levels against EPA's Maximum Contaminant Level Goal (MCLG). Contaminants above the MCLG are shown by default and may require filtration. All other tested contaminants are within safe levels and can be viewed by expanding the section above.
Recommended Water Filters for Houston
Based on Houston's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.
Pentair Residential Filtration, LLC
Everpure Residential H-300-NXT
NSF Certified:
Capacity
3001 gal
Filter Life
10 mo
Flow Rate
0.5 gpm
Removes 5 contaminants:
Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Cryptosporidium, Lead
Whirlpool Corporation
W11256135
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.7 gpm
Removes 19 contaminants:
1,2 Dichlorobenzene, 1,4 Dichlorobenzene, 2,4-D, Asbestos, Atrazine +14 more
Whirlpool Corporation
W11569861
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.52 gpm
Removes 22 contaminants:
1,2 Dichlorobenzene, 1,2,4 Trichlorobenzene, 1,4 Dichlorobenzene, 2,4-D, Asbestos +17 more
Frequently Asked Questions About Houston Tap Water
Houston's tap water currently meets all EPA MCLGs. All 20+ contaminants tested are within safe levels according to health-based guidelines. The water is considered safe to drink, though some people may still prefer filtered water for taste or extra protection.