Public water system record
Tesoro Viejo Master MWC, Inc.
Serves an area of Madera County, CA · 3,885 people served
Federal records show no health-based violations and no monitoring or reporting issues for Tesoro Viejo Master MWC, Inc. in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Tesoro Viejo Master MWC, Inc. draws water from 2 surface water intakes and 1 reservoir.
- Lead pipe inventory: 0 lead and 0 unknown out of 1,030 service lines.
Check whether Tesoro Viejo Master MWC, Inc. serves your address
Health-based violations
Since October 2016Violation 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.
Where the water comes from
Tesoro Viejo Master MWC, Inc. draws water from 2 surface water intakes and 1 reservoir.
Annual water quality report
Tesoro Viejo Master MWC, Inc. 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.
Certified drinking water labs by state EPA guidance for private wells