Public water system record
Joint Regional Water Supply System
Serves an area of Orange County, CA · 3,947 people served
Federal records show no health-based violations and no monitoring or reporting issues for Joint Regional Water Supply System 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
- Joint Regional Water Supply System buys its water from South Coast Water District and Metropolitan Water Dist. of So. Cal.
- Lead pipe inventory: 0 lead and 0 unknown out of 8 service lines.
Check whether Joint Regional Water Supply System 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
Joint Regional Water Supply System buys its water from South Coast Water District and Metropolitan Water Dist. of So. Cal. It lists no wells or intakes of its own. It also has an emergency connection to Irvine Ranch Water District. 4 other community water systems buy water from Joint Regional Water Supply System. 1 other public water system has an emergency connection to Joint Regional Water Supply System.
Buys water from
- South Coast Water District Laguna Beach, CA
- Metropolitan Water Dist. of So. Cal. La Verne, CA
Emergency or part-time connections to
- Irvine Ranch Water District Irvine, CA
Community systems that buy water from it
- Irvine Ranch Water District Irvine, CA
- Moulton Niguel Water District Laguna Hills, CA
- Santa Margarita Water District-ID9 Rancho Santa Margarita, CA
- South Coast Water District Laguna Beach, CA
Annual water quality report
Joint Regional Water Supply System 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