Drinking water quality · 2024
What's in San Antonio Water System, TX tap water
1 contaminants were measured in the San Antonio Water System, TX water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 1
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- TX
Where your water comes from · EPA SDWIS
San Antonio Water System, TX's drinking water comes from ground water, drawn from 181 sources.
Source
- ASR · 29
- MISSION · 8
- NACO · 7
- BASIN · 6
- + 93 more
Treatment
- PLANT - FAC 1 / 411 CARLISLE (SOUTHSIDE)
- PLANT - FAC 5 6019 ZARZAMORA (SOUTHSIDE)
- PLANT - 3019 LA ROSA (SOUTHSIDE)
- + 61 more
Distribution
Also buys water from GBRA WESTERN CANYON WATER SUPPLY, WATER EXPLORATION STEIN ROGER WELL FIELD, and 4 more.
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based1 violation on record · most recent Dec 2005resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0.0016 mg/L90th percentileAt the tap | 0.015 mg/LAction level | Within the limit |
People also ask about San Antonio Water System, TX's water
+Is San Antonio Water System, TX tap water safe to drink in 2024?
Every one of the 1 contaminants measured in San Antonio Water System, TX's 2024 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in San Antonio Water System, TX tap water?
1 contaminants were measured in San Antonio Water System, TX's 2024 Consumer Confidence Report, spanning metals. 1 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Where does the data on this page come from?
Every value is transcribed from San Antonio Water System, TX's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is San Antonio Water System, TX's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2024 report; a new report will replace it once the utility publishes its next annual update.