Public water system record
City of Ukiah
Serves Ukiah, Mendocino County, CA · 16,607 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for City of Ukiah in the last ten years. At least one of these issues remains unresolved.
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 Ukiah draws water from 5 wells and 1 surface water intake.
- Record on file since 1986, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 5,106 service lines.
Check whether City of Ukiah 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 |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2022 | Active |
Full record since 1986
EPA's records for City of Ukiah go back to 1986. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 1 |
| 1990s | 1 | 0 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began February 1996, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 1996 | Resolved |
Where the water comes from
City of Ukiah draws water from 5 wells and 1 surface water intake. It also buys water from Millview County Water District and Willow County Water District. 2 other community water systems buy water from City of Ukiah.
Buys water from
- Millview County Water District Ukiah, CA
- Willow County Water District Ukiah, CA
Community systems that buy water from it
- Millview County Water District Ukiah, CA
- Willow County Water District Ukiah, CA
Annual water quality report
City of Ukiah 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