SAN ANTONIO, TX · Bexar County

SAN ANTONIO WATER SYSTEM Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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: 2,113,151
Service connections: 763,868
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
June 10, 2016 – June 12, 2016
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
February 1, 2016 – February 29, 2016
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 10, 2013 – April 23, 2014
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
September 1, 2012 – January 9, 2013
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Simazine
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Endrin
January 1, 2008 – December 31, 2010
Resolved
Monitoring, 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

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 Public Notification requested1 linked violation
May 26, 2016State Violation/Reminder Notice1 linked violation
April 23, 2014State Compliance achieved1 linked violation
April 23, 2014State Public Notification received1 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 Violation/Reminder Notice1 linked violation
December 4, 2012State Public Notification requested1 linked violation

Contact

HALTY, SCOTT, R

210-233-3536

SAN ANTONIO, TX 78298-2449