EL MONTE, CA · Los Angeles County

SAN GABRIEL VALLEY WATER CO.-EL MONTE Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

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): CA1910039
System type: Community Water System
Population served: 248,000
Service connections: 46,952
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
September 1, 2018 – September 30, 2018
Resolved
Notification, 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
September 1, 2018 – September 30, 2018	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	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

September 11, 2023State Administrative/Compliance Order without penalty issued1 linked violation
August 31, 2019State Compliance achieved1 linked violation
November 30, 2018State Compliance achieved2 linked violations
October 22, 2018State Administrative/Compliance Order without penalty issued2 linked violations
December 20, 1995State Formal Notice of Violation issued1 linked violation
December 20, 1995State Compliance achieved1 linked violation

Contact

NGUYEN, HAI-VAN

626-448-6183

EL MONTE, CA 91734-2010