ADELANTO, CA · San Bernardino County
ADELANTO, CITY OF Water System
Consumer Confidence Report status
ADELANTO, CITY OF 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 ADELANTO, CITY OF.
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)
- CA3610001
- System type
- Community Water System
- Population served
- 39,930
- Service connections
- 8,318
- Ownership
- local government
- Water source
- groundwater (wells)
ADELANTO, CITY OF is one of 376 community water systems in California in the 10,001 to 100,000 people size category, serving 39,930 people from groundwater.
As of August 1, 2026, its federal record holds 2 entries between 2011 and 2014, all of which EPA lists as closed. Nothing has been added since 2014.
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 Groundwater Rule and inorganic chemicals.
Violation history
Monitoring, Source Water (GWR)
—E. COLI
June 1, 2014 – July 31, 2014
ResolvedMaximum Contaminant Level Violation, Average
Health-basedArsenic
January 1, 2011 – March 31, 2011
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| June 1, 2014 – July 31, 2014 | Monitoring, Source Water (GWR) | E. COLI | — | Resolved |
| January 1, 2011 – March 31, 2011 | Maximum Contaminant Level Violation, Average | Arsenic | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- February 10, 2025State Administrative/Compliance Order with penalty issued3 linked violations
- January 29, 2019State Compliance achieved3 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, 2011State Administrative/Compliance Order without penalty issued8 linked violations
- August 30, 2001State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- April 28, 1995State Compliance achieved5 linked violations
Common questions
Is ADELANTO, CITY OF required to publish a Consumer Confidence Report?
- Yes. ADELANTO, CITY OF 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 ADELANTO, CITY OF’s next Consumer Confidence Report due?
- ADELANTO, CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does ADELANTO, CITY OF have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for ADELANTO, CITY OF.
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
FLORES, JESSE
760-246-2300
ADELANTO, CA 92301