Public water system record
Colusa Co. Service Area #1-Century Ranch
Serves Colusa, Colusa County, CA · 246 people served
Federal records show no health-based violations and 4 monitoring/reporting issues for Colusa Co. Service Area #1-Century Ranch 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
- 4
Key facts
- Colusa Co. Service Area #1-Century Ranch draws water from 3 wells and 1 surface water intake.
- Most recent formal enforcement: compliance order (no penalty) by California, February 2020.
- Lead pipe inventory: 0 lead and 0 unknown out of 161 service lines.
Check whether Colusa Co. Service Area #1-Century Ranch 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 |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2019 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
Enforcement actions
California regulators took 1 formal enforcement action against Colusa Co. Service Area #1-Century Ranch in 2020. The most recent was a compliance order (no penalty) in February 2020.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Feb 19, 2020 | California | Compliance order (no penalty) | 1 violation: Consumer Confidence Rule |
Where the water comes from
Colusa Co. Service Area #1-Century Ranch draws water from 3 wells and 1 surface water intake.
Annual water quality report
Colusa Co. Service Area #1-Century Ranch 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 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Colusa Co. Service Area #1-Century Ranch for a copy.
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