Water Quality in Houston, TX (77042)
EPA violation data for public water systems serving ZIP code 77042.
Active Health Violations
13 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 98% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
38,721
Population
28
Water Systems
187
Violations (5yr)
13
Health-Based
Location
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Water Systems Serving This Area (28)
City Of Houston
1 health-basedCity Of Pasadena
County Line Country Store
National Oilwell
1 health-basedTomball Country Store
Foster Creek Country Store
Houston V & M Star
Timewise Food Store Fm 529
Rosehill Prairie Country Store
1 health-basedStop N Serv 25
Executive Days Inn-Well
Shell Country Store 17920 Fm 2920
Kms Kwik Stop 1
Vam-Pts Company
All resolvedWinter'S M. H. P.
Tractor Supply Clovis Road
1 health-basedKey Texas Manufacturing & Permian Cntr
1 health-basedRanger Energy Services
8 health-basedSecurity Lumber Co.-Back
Security Lumber Co.-Front
Dcp Midstream Linam Plant
All resolvedTrep Strang Owner
Loomis, Fargo ;Co.
K-D Management Inc
C&J Asherton
Market At Meyer Park
Tristream East Texas Eustace System
Ranch Country Store
All resolvedContaminants Found
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Used to disinfect water — generally safe at regulated levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Houston (77042) has more violations than 98% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 187.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.