Public water system record
Town of Windsor
Serves Windsor and Larkfield-Wikiup, Sonoma County, CA · 25,561 people served
Federal records show no health-based violations and no monitoring or reporting issues for Town of Windsor 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
- 0
Key facts
- Town of Windsor draws water from 6 wells.
- Most recent formal enforcement: compliance order (no penalty) by California, September 2001.
- Record on file since 2000, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 9,323 service lines.
Check whether Town of Windsor 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, and no monitoring or reporting violations either.
Full record since 2000
EPA's records for Town of Windsor go back to 2000. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 2 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began August 2001, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2001 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2000 | Resolved |
Enforcement actions
California regulators took 1 formal enforcement action against Town of Windsor in 2001. The most recent was a compliance order (no penalty) in September 2001.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 28, 2001 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
Where the water comes from
Town of Windsor draws water from 6 wells. It also buys water from Sonoma County Water Agency.
Buys water from
- Sonoma County Water Agency Santa Rosa, CA
Annual water quality report
Town of Windsor 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