Public water system record
City of Adelanto
Serves Adelanto and Victorville, San Bernardino County, CA · 39,930 people served
Federal records show no health-based violations and 2 monitoring/reporting issues for City of Adelanto in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 2
Key facts
- City of Adelanto draws water from 7 wells.
- Most recent formal enforcement: compliance order with a penalty by California, February 2025.
- Record on file since 1988, with 12 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 8,883 service lines.
Check whether City of Adelanto serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Nitrate
Monitoring and reporting
|
Jan 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Nitrate
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
Full record since 1988
EPA's records for City of Adelanto go back to 1988. Before October 19, 2016 they list 12 health-based violations (9 resolved, 3 archived by EPA without a recorded fix) and 6 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 2 | 0 |
| 1990s | 2 | 1 |
| 2000s | 2 | 0 |
| 2010 to October 18, 2016 | 6 | 5 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Arsenic, began April 2011, Resolved.
Show all 12 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.03 mg/L, federal limit 0.01 mg/L (3 times the limit)
|
Apr 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.032 mg/L, federal limit 0.01 mg/L (3.2 times the limit)
|
Jan 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.032 mg/L, federal limit 0.01 mg/L (3.2 times the limit)
|
Oct 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.032 mg/L, federal limit 0.01 mg/L (3.2 times the limit)
|
Jul 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.032 mg/L, federal limit 0.01 mg/L (3.2 times the limit)
|
Apr 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.032 mg/L, federal limit 0.01 mg/L (3.2 times the limit)
|
Jan 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.032 mg/L, federal limit 0.01 mg/L (3.2 times the limit)
|
Oct 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2003 | Resolved |
|
Fluoride
Contaminant limit exceeded
|
Mar 3, 1994 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1992 | Resolved |
|
Fluoride
Contaminant limit exceeded
|
Aug 1, 1988 | Archived |
|
Fluoride
Contaminant limit exceeded
|
Jul 1, 1988 | Archived |
Enforcement actions
California regulators took 3 formal enforcement actions against City of Adelanto between 2011 and 2025. The most recent was a compliance order with a penalty in February 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Feb 10, 2025 | California | Compliance order with a penalty | 1 violation: Nitrate |
| Feb 22, 2019 | California | Compliance order (no penalty) | 1 violation: Nitrate |
| Jun 2, 2011 | California | Compliance order (no penalty) | 7 violations (7 health-based): Arsenic |
Where the water comes from
City of Adelanto draws water from 7 wells. It also buys water from Mojave Water Agency. It also has an emergency connection to Victorville Water District. 1 other public water system has an emergency connection to City of Adelanto.
Buys water from
- Mojave Water Agency Apple Valley, CA
Emergency or part-time connections to
- Victorville Water District Victorville, CA
Annual water quality report
City of Adelanto must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by California.
Certified drinking water labs by state EPA guidance for private wells