RANCHO SANTA MARGARITA, CA · Orange County
RANCHO MISSION VIEJO Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of January 6, 2020. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Orange County, CA.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.
System facts
- System ID (PWSID)
- CA3000852
- System type
- Community Water System
- Population served
- 0
- Service connections
- 17
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Monitoring, Source Water (GWR)
—E. COLI
May 3, 2019 – June 19, 2019
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1981 – September 30, 1982
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| May 3, 2019 – June 19, 2019 | Monitoring, Source Water (GWR) | E. COLI | — | Resolved |
| October 1, 1981 – September 30, 1982 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
No enforcement actions on record for this system.
Last known contact on file (system is inactive)
PETERSON, DANIEL
949-459-6594
RANCHO SANTA MARGARITA, CA 92688