EL MONTE, CA · Los Angeles County
SAN GABRIEL VALLEY WATER CO-MONTEBELLO 1 Water System
Consumer Confidence Report status
SAN GABRIEL VALLEY WATER CO-MONTEBELLO 1 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 SAN GABRIEL VALLEY WATER CO-MONTEBELLO 1.
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)
- CA1910189
- System type
- Community Water System
- Population served
- 9,630
- Service connections
- 1,623
- Ownership
- privately owned
- Water source
- groundwater (wells)
SAN GABRIEL VALLEY WATER CO-MONTEBELLO 1 is one of 278 community water systems in California in the 3,301 to 10,000 people size category, serving 9,630 people from groundwater.
As of August 1, 2026, its federal record holds 2 entries between 1987 and 2009, all of which EPA lists as closed. Nothing has been added since 2009.
Of the 2, 1 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 1 Disinfectants and Disinfection Byproducts Rule and the Miscellaneous Other Rules.
Violation history
Monitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2009 – September 30, 2009
ResolvedNotification, Public
—No contaminant on record
August 1, 1987 – August 31, 1987
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 |
|---|---|---|---|---|
| January 1, 2009 – September 30, 2009 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| August 1, 1987 – August 31, 1987 | Notification, Public | — | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- November 23, 2009State Compliance achieved4 linked violations
- December 15, 2008State Violation/Reminder Notice3 linked violations
Common questions
Is SAN GABRIEL VALLEY WATER CO-MONTEBELLO 1 required to publish a Consumer Confidence Report?
- Yes. SAN GABRIEL VALLEY WATER CO-MONTEBELLO 1 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 SAN GABRIEL VALLEY WATER CO-MONTEBELLO 1’s next Consumer Confidence Report due?
- SAN GABRIEL VALLEY WATER CO-MONTEBELLO 1’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SAN GABRIEL VALLEY WATER CO-MONTEBELLO 1 have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for SAN GABRIEL VALLEY WATER CO-MONTEBELLO 1.
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
NGUYEN, HAI-VAN
626-448-6183
EL MONTE, CA 91734-2010