UPLAND, CA · San Bernardino County
SAN ANTONIO WATER COMPANY Water System
Consumer Confidence Report status
SAN ANTONIO WATER COMPANY 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 COMPANY.
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 California’s official records. Always confirm current status with California before making decisions based on this information.
System facts
- System ID (PWSID)
- CA3610085
- System type
- Community Water System
- Population served
- 3,441
- Service connections
- 1,223
- Ownership
- privately owned
- Water source
- groundwater (wells)
SAN ANTONIO WATER COMPANY is one of 278 community water systems in California in the 3,301 to 10,000 people size category, serving 3,441 people from groundwater.
As of August 1, 2026, its federal record holds 2 entries between 2004 and 2015, all of which EPA lists as closed. Nothing has been added since 2015.
None of the 2 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Total Coliform Rules.
Violation history
Maximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
November 1, 2015 – November 30, 2015
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
February 1, 2004 – February 29, 2004
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| November 1, 2015 – November 30, 2015 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| February 1, 2004 – February 29, 2004 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- February 12, 2016State Compliance achieved7 linked violations
Common questions
Is SAN ANTONIO WATER COMPANY required to publish a Consumer Confidence Report?
- Yes. SAN ANTONIO WATER COMPANY 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 COMPANY’s next Consumer Confidence Report due?
- SAN ANTONIO WATER COMPANY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SAN ANTONIO WATER COMPANY 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 COMPANY.
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
LEE, BRIAN
909-982-4107
UPLAND, CA 91786