Public water system record
City of Colton
Serves Colton, San Bernardino County, CA · 46,525 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for City of Colton 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
- 1
Key facts
- City of Colton draws water from 9 wells (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order (no penalty) by California, February 2023.
- Lead pipe inventory: 0 lead and 0 unknown out of 12,120 service lines.
Check whether City of Colton 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, 2022 | Resolved |
Enforcement actions
California regulators took 1 formal enforcement action against City of Colton in 2023. The most recent was a compliance order (no penalty) in February 2023.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Feb 8, 2023 | California | Compliance order (no penalty) | 1 violation: Nitrate |
Where the water comes from
City of Colton draws water from 9 wells (1 of them for emergency, seasonal or other part-time use). It also buys water from San Bernardino City and City of Rialto. It also has an emergency connection to Riverside Highland Water Company. 1 smaller public system such as schools, businesses or campgrounds buys water from City of Colton. 2 other public water systems have emergency connections to City of Colton.
Buys water from
- San Bernardino City San Bernardino, CA
- City of Rialto Rialto, CA
Emergency or part-time connections to
- Riverside Highland Water Company Grand Terrace, CA
Annual water quality report
City of Colton 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