Public water system record
Dunklin County PWSD 1
Serves an area of Dunklin County, MO · 4,307 people served
Federal records show 1 health-based violation and 2 monitoring/reporting issues for Dunklin County PWSD 1 in the last ten years, including an unresolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 0
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 2
Key facts
- Dunklin County PWSD 1 draws water from 2 wells.
- Most recent formal enforcement: signed compliance agreement by Missouri, October 2005.
- Record on file since 1997, with 5 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 201 unknown out of 2,046 service lines.
Check whether Dunklin County PWSD 1 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.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | Dec 16, 2024 | Active | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Jul 2, 2025 | Active |
|
Public Notice
OTHER
|
Feb 6, 2025 | Resolved |
Full record since 1997
EPA's records for Dunklin County PWSD 1 go back to 1997. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 4 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 1 |
| 2000s | 3 | 1 |
| 2010 to October 18, 2016 | 2 | 2 |
| 2020s | 1 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform, began August 2013, Resolved.
Show all 5 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2013 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2005 | Resolved |
Enforcement actions
Missouri regulators took 1 formal enforcement action against Dunklin County PWSD 1 in 2005. The most recent was a signed compliance agreement in October 2005.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 4, 2005 | Missouri | Signed compliance agreement | 3 violations (3 health-based): Total Coliform |
What the violations mean
Groundwater Rule
1 incidentThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Dunklin County PWSD 1 draws water from 2 wells. 1 other public water system has an emergency connection to Dunklin County PWSD 1.
Annual water quality report
Dunklin County PWSD 1 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