SAN ANTONIO, TX · Bexar County
SAN ANTONIO WATER SYSTEM Water System
Consumer Confidence Report status
SAN ANTONIO WATER SYSTEM must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for SAN ANTONIO WATER SYSTEM.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Texas’s official records. Always confirm current status with Texas before making decisions based on this information.
System facts
- System ID (PWSID)
- TX0150018
- System type
- Community Water System
- Population served
- 2,643,729
- Service connections
- 881,243
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
SAN ANTONIO WATER SYSTEM is the second largest community water system in Texas, serving 2,643,729 people from surface water.
As of August 1, 2026, its federal record holds 21 entries between 2008 and 2016, all of which EPA lists as closed. Nothing has been added since 2016.
Of the 21, 19 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals, the Public Notice Rule and Revised PN Rule, and the Total Coliform Rules.
Violation history
Public Notification Violation for NPDWR Violation
—Public Notice
June 10, 2016 – June 12, 2016
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
February 1, 2016 – February 29, 2016
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
April 10, 2013 – April 23, 2014
ResolvedMonitoring, Source Water (GWR)
—E. COLI
September 1, 2012 – January 9, 2013
ResolvedMonitoring, Regular
—Nitrate
January 1, 2010 – December 31, 2010
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Simazine
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Atrazine
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Chlordane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Endrin
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—LASSO
January 1, 2008 – December 31, 2010
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| June 10, 2016 – June 12, 2016 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| February 1, 2016 – February 29, 2016 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| April 10, 2013 – April 23, 2014 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| September 1, 2012 – January 9, 2013 | Monitoring, Source Water (GWR) | E. COLI | — | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Chlordane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | LASSO | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- June 16, 2026State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- June 12, 2026State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- May 27, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- May 20, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- December 20, 2021State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- December 17, 2021State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- June 12, 2017State Public Notification received1 linked violation
- December 6, 2016State Violation/Reminder Notice1 linked violation
- August 4, 2016State Compliance achieved1 linked violation
- June 14, 2016State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- June 12, 2016State Compliance achieved1 linked violation
- May 26, 2016State Violation/Reminder Notice1 linked violation
- May 26, 2016State Public Notification requested1 linked violation
- April 23, 2014State Public Notification received1 linked violation
- April 23, 2014State Compliance achieved1 linked violation
- March 5, 2014State Compliance achieved17 linked violations
- April 25, 2013State Violation/Reminder Notice1 linked violation
- January 9, 2013State Compliance achieved1 linked violation
- December 4, 2012State Public Notification requested1 linked violation
- December 4, 2012State Violation/Reminder Notice1 linked violation
Common questions
Is SAN ANTONIO WATER SYSTEM required to publish a Consumer Confidence Report?
- Yes. SAN ANTONIO WATER SYSTEM is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is SAN ANTONIO WATER SYSTEM’s next Consumer Confidence Report due?
- SAN ANTONIO WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SAN ANTONIO WATER SYSTEM have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for SAN ANTONIO WATER SYSTEM.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
HALTY, SCOTT, R
210-233-3536
SAN ANTONIO, TX 78298-2449