Public water system record

San Antonio Canyon MSC

On record as serving San Bernardino County, CA · Serves 119 people

Federal records show no health-based violations and 2 monitoring/reporting issues for San Antonio Canyon MSC in the last ten years.

  • CA3610082
  • MT. BALDY
  • CA
  • 119 served

System profile

Source water Groundwater
ZIP 91759
EPA system ID CA3610082

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
2

Key facts

  • San Antonio Canyon MSC draws water from 2 springs.
  • Most recent formal enforcement: compliance order (no penalty) by California, April 2020.
  • Record on file since 1993, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 62 service lines.

Check whether San Antonio Canyon MSC serves your address

Address suggestions by Mapbox

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.

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2019 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2019 Resolved

Full record since 1993

EPA's records for San Antonio Canyon MSC go back to 1993. Before October 19, 2016 they list no health-based violations and 1 monitoring or reporting violation.

Violations that began in Health-based Monitoring and reporting
1990s 0 1
October 19, 2016 to 2019 0 2

Enforcement actions

California regulators took 1 formal enforcement action against San Antonio Canyon MSC in 2020. The most recent was a compliance order (no penalty) in April 2020.

Date By Action Violations covered
Apr 3, 2020 California Compliance order (no penalty) 2 violations: Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)

Where the water comes from

San Antonio Canyon MSC draws water from 2 springs.

Annual water quality report

San Antonio Canyon MSC 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 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask San Antonio Canyon MSC for a copy.

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.