Water Quality in San Antonio, TX (78238)
EPA violation data for public water systems serving ZIP code 78238.
No Health-Based Violations
None of the 9 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are44 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 89% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
26,032
Population
9
Water Systems
44
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (9)
San Antonio Water System
City Of Leon Valley
All resolvedSouthwest Research Inst
Leon Springs Elementary School
Rocky Point Retreat
Cavender Ford
San Antonio Police Vehicle Stg
Taco Villa
Grey Moss Inn
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2022
How Does This Compare?
San Antonio (78238) has more violations than 89% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 44, most of which are monitoring/reporting issues.
Water Filter Recommendations
No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.