Public water system record
Santa Margarita Water District
Serves Rancho Mission Viejo, Mission Viejo, Rancho Santa Margarita and 4 more places, Orange County, CA · 168,289 people served
Federal records show no health-based violations and no monitoring or reporting issues for Santa Margarita Water District 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
- Santa Margarita Water District buys its water from Metropolitan Water Dist. of So. Cal., Trabuco Canyon Water District and Irvine Ranch Water District.
- Record on file since 2009, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 52,885 service lines.
Check whether Santa Margarita Water District 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.
Full record since 2009
EPA's records for Santa Margarita Water District go back to 2009. 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 |
|---|---|---|
| 2000s | 0 | 1 |
Where the water comes from
Santa Margarita Water District buys its water from Metropolitan Water Dist. of So. Cal., Trabuco Canyon Water District and Irvine Ranch Water District. It lists no wells or intakes of its own. It also has emergency connections to City of San Clemente, El Toro Water District and Moulton Niguel Water District. 1 smaller public system such as schools, businesses or campgrounds buys water from Santa Margarita Water District. 2 other public water systems have emergency connections to Santa Margarita Water District.
Buys water from
- Metropolitan Water Dist. of So. Cal. La Verne, CA
- Trabuco Canyon Water District Trabuco Canyon, CA
- Irvine Ranch Water District Irvine, CA
Emergency or part-time connections to
- City of San Clemente San Clemente, CA
- El Toro Water District Lake Forest, CA
- Moulton Niguel Water District Laguna Hills, CA
Annual water quality report
Santa Margarita Water District 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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