Public water system record
Cole County PWSD 4
Serves an area of Cole County, MO that includes Taos and Jefferson City · 7,568 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Cole County PWSD 4 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
- Cole County PWSD 4 draws water from 4 wells.
- Record on file since 2000, with 11 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 782 unknown out of 1,490 service lines.
Check whether Cole County PWSD 4 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
|
Dec 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Full record since 2000
EPA's records for Cole County PWSD 4 go back to 2000. Before October 19, 2016 they list 11 health-based violations (11 resolved) and 2 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 11 | 2 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began September 2005, Resolved.
Show all 11 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2001 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2001 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2000 | Resolved |
Where the water comes from
Cole County PWSD 4 draws water from 4 wells.
Annual water quality report
Cole County PWSD 4 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.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
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 Missouri.
Certified drinking water labs by state EPA guidance for private wells