Public water system record
San Antonio Water System
Serves San Antonio, Timberwood Park, Helotes and 12 more places, Bexar County, TX · 2,113,151 people served
Federal records show no health-based violations and no monitoring or reporting issues for San Antonio Water System in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- San Antonio Water System draws water from 181 wells (41 of them for emergency, seasonal or other part-time use).
- Record on file since 2005, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 346,335 unknown out of 604,957 service lines.
Check whether San Antonio Water System serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016, and no monitoring or reporting violations either.
Full record since 2005
EPA's records for San Antonio Water System go back to 2005. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 21 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 1 | 16 |
| 2010 to October 18, 2016 | 0 | 5 |
Most recent health-based violation before October 19, 2016: Total Coliform (acute), began December 2005, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform (acute)
Contaminant limit exceeded
|
Dec 1, 2005 | Resolved |
Where the water comes from
San Antonio Water System draws water from 181 wells (41 of them for emergency, seasonal or other part-time use). It also buys water from Gbra Western Canyon Water Supply, Water Exploration Stein Roger Well Field, Schertz Seguin Local Government Corporat, Central Texas Regional WSC, Crwa Lake Dunlap WTP and Crwa Wells Ranch. 6 other community water systems and 6 smaller public systems such as schools, businesses or campgrounds buy water from San Antonio Water System. 6 other public water systems have emergency, seasonal or other part-time connections to San Antonio Water System.
Buys water from
- Gbra Western Canyon Water Supply New Braunfels, TX
- Water Exploration Stein Roger Well Field Boerne, TX
- Schertz Seguin Local Government Corporat Seguin, TX
- Central Texas Regional WSC San Antonio, TX
- Crwa Lake Dunlap WTP New Braunfels, TX
- Crwa Wells Ranch New Braunfels, TX
Community systems that buy water from it
- Camp Stanley Storage Activity Boerne, TX
- City of Elmendorf Elmendorf, TX
- East Central SUD Palm Park Water Adkins, TX
- Kendall County WCID 3A Houston, TX
- Schertz Seguin Local Government Corporat Seguin, TX
- The Oaks WSC San Antonio, TX
Annual water quality report
San Antonio Water System must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Texas.
Certified drinking water labs by state EPA guidance for private wells