RANCHO SANTA MARGARITA, CA · Orange County
SANTA MARGARITA WATER DISTRICT-ID9 Water System
Consumer Confidence Report status
SANTA MARGARITA WATER DISTRICT-ID9 must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for SANTA MARGARITA WATER DISTRICT-ID9.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
- CA3010030
- System type
- Community Water System
- Population served
- 39,684
- Service connections
- 11,013
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
SANTA MARGARITA WATER DISTRICT-ID9 is one of 376 community water systems in California in the 10,001 to 100,000 people size category, serving 39,684 people from surface water.
As of August 1, 2026, its federal record holds 6 entries between 1995 and 2020, all of which EPA lists as closed. Nothing has been added since 2020.
Of the 6, 5 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Stage 2 Disinfectants and Disinfection Byproducts Rule, the Lead and Copper Rule, and inorganic chemicals.
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2020 – July 21, 2021
ResolvedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
January 1, 2013 – March 31, 2013
ResolvedMonitoring, Routine (IDSE)
—TTHM
July 1, 2012 – September 30, 2012
ResolvedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
July 1, 2012 – September 30, 2012
ResolvedMonitoring, Regular
—Nitrate
January 1, 2011 – December 31, 2011
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
October 1, 1995 – October 31, 1995
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2020 – July 21, 2021 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| January 1, 2013 – March 31, 2013 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| July 1, 2012 – September 30, 2012 | Monitoring, Routine (IDSE) | TTHM | — | Resolved |
| July 1, 2012 – September 30, 2012 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2011 – December 31, 2011 | Monitoring, Regular | Nitrate | — | Resolved |
| October 1, 1995 – October 31, 1995 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- January 17, 2023State Formal Notice of Violation issued2 linked violations
- September 25, 2013State Violation/Reminder Notice14 linked violations
- August 14, 2013State Compliance achieved22 linked violations
- November 22, 1995State Compliance achieved3 linked violations
Common questions
Is SANTA MARGARITA WATER DISTRICT-ID9 required to publish a Consumer Confidence Report?
- Yes. SANTA MARGARITA WATER DISTRICT-ID9 is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is SANTA MARGARITA WATER DISTRICT-ID9’s next Consumer Confidence Report due?
- SANTA MARGARITA WATER DISTRICT-ID9’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SANTA MARGARITA WATER DISTRICT-ID9 have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for SANTA MARGARITA WATER DISTRICT-ID9.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
SMITH, ERIC
949-459-6522
RANCHO SANTA MARGARITA, CA 92688