ADELANTO, CA · San Bernardino County

ADELANTO, CITY OF 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): CA3610001
System type: Community Water System
Population served: 39,930
Service connections: 8,318
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Nitrate
January 1, 2014 – December 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2011 – June 30, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2010 – September 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2010 – June 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2010 – March 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2009 – December 31, 2009
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1992 – October 31, 1992
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
July 1, 1988 – July 31, 1988
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, 2014 – December 31, 2014	Monitoring, Regular	Nitrate	—	Resolved
April 1, 2011 – June 30, 2011	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2010 – September 30, 2010	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 1992 – October 31, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 1988 – July 31, 1988	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

February 10, 2025State Administrative/Compliance Order with penalty issued3 linked violations
January 10, 2019State Public Notification requested35 linked violations
January 10, 2019State Violation/Reminder Notice1 linked violation
January 10, 2019State Public Notification requested3 linked violations
January 10, 2019State Violation/Reminder Notice1 linked violation
May 16, 2016State Formal Notice of Violation issued4 linked violations
June 2, 2015State Compliance achieved9 linked violations
October 9, 2003State Compliance achieved15 linked violations
August 30, 2001State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 10, 1992State Compliance achieved4 linked violations

Contact

FLORES, JESSE

760-246-2300

ADELANTO, CA 92301