Tap Water Quality in San Antonio, Texas (ZIP 78249)
Serving San Antonio, Texas
Is the Tap Water Safe in San Antonio, Texas?
Tap water in San Antonio, Texas (ZIP 78249) has 13 contaminants above EPA health-based guidelines (MCLGs) in at least one of the 1 city served. We recommend reviewing detailed city reports below and considering a certified water filter for additional protection.
ZIP 78249 is served by 7 water utilities providing water to San Antonio. Water quality varies by utility and city. Click on the cities below to see detailed reports for your specific area.
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Water Quality Report for ZIP 78249
7 contaminants above EPA health guidelines
These levels represent the worst case across all cities in this ZIP code. Check individual city reports for specific details.
Found in San Antonio
Found in San Antonio
Found in San Antonio
Found in San Antonio
Found in San Antonio
Found in San Antonio
Found in San Antonio
Water Utilities Serving ZIP 78249
SAN ANTONIO WATER SYSTEM
1,999,472
Water Source:
Surface water purchased
Contaminants Tested:
213
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Best Water Filters for San Antonio (ZIP 78249)
Based on the contaminants found in your area, we recommend NSF-certified water filters that can remove the specific contaminants above health guidelines.
Filter guides for the contaminants detected here:
Frequently Asked Questions about San Antonio Tap Water
Is the tap water safe in San Antonio, Texas (ZIP 78249)?
Which water utilities serve ZIP code 78249?
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What contaminants are in San Antonio water (ZIP 78249)?
Should I use a water filter in San Antonio (ZIP 78249)?
What cities are in ZIP code 78249?
How we built this page
Water-quality data on this page comes from public federal and state records for the 7 utilityies serving ZIP 78249. We refresh each utility's record whenever its underlying source publishes new data.
- Contaminants & violations: EPA Safe Drinking Water Information System (SDWIS) plus the Unregulated Contaminant Monitoring Rule (UCMR-5) for PFAS and emerging contaminants.
- Annual reports: the most recent published Consumer Confidence Report (CCR) from each utility serving this ZIP, where available.
- Service area & contact: EPA SDWIS plus the Texas Department of Environmental Protection / Drinking Water program.
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