Public water system record

San Antonio Water Company

Serves San Antonio Heights, San Bernardino County, CA · 3,441 people served

Federal records show no health-based violations and no monitoring or reporting issues for San Antonio Water Company in the last ten years.

  • CA3610085
  • UPLAND
  • CA
  • 3,441 served

System profile

Source water Groundwater
ZIP 91786
EPA system ID CA3610085

Verify this system on EPA ECHO →

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 Company draws water from 10 wells.
  • Record on file since 1993, with 3 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 1,219 service lines.

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Health-based violations

Since October 2016

Violation 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 1993

EPA's records for San Antonio Water Company go back to 1993. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 1 monitoring or reporting violation.

Violations that began in Health-based Monitoring and reporting
1990s 1 1
2000s 1 0
2010 to October 18, 2016 1 0

Most recent health-based violation before October 19, 2016: Total Coliform, began November 2015, Resolved.

Show all 3 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Nov 1, 2015 Resolved
Total Coliform
Contaminant limit exceeded
Feb 1, 2004 Resolved
Total Coliform
Contaminant limit exceeded
Feb 1, 1993 Resolved

Where the water comes from

San Antonio Water Company draws water from 10 wells. It also has an emergency connection to City of Upland. 2 other community water systems buy water from San Antonio Water Company.

Emergency or part-time connections to

Community systems that buy water from it

Annual water quality report

San Antonio Water Company 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.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

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 California.