Public water system record
Clarkton PWS
Serves Clarkton, Dunklin County, MO · 1,124 people served
Federal records show 4 health-based violations and 12 monitoring/reporting issues for Clarkton PWS in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 4
- Resolved
- 4
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 12
Key facts
- Clarkton PWS draws water from 2 wells.
- Most recent enforcement action: boil water order by Missouri, April 2015.
- Record on file since 1993, with 6 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 2 unknown out of 544 service lines.
Check whether Clarkton PWS 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 | Oct 1, 2022 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Apr 1, 2021 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jan 1, 2020 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 1, 2017 | Resolved | No |
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
|
Jun 1, 2025 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Dec 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2024 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2022 | Resolved |
|
Public Notice
OTHER
|
May 26, 2022 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
May 1, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Dec 1, 2019 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
Full record since 1993
EPA's records for Clarkton PWS go back to 1993. Before October 19, 2016 they list 6 health-based violations (6 resolved) and 16 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 6 |
| 2000s | 2 | 6 |
| 2010 to October 18, 2016 | 4 | 4 |
| October 19, 2016 to 2019 | 1 | 3 |
| 2020s | 3 | 9 |
Most recent health-based violation before October 19, 2016: Groundwater Rule, began April 2015, Resolved.
Show all 6 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
Apr 1, 2015 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 2015 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
May 1, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2001 | Resolved |
Enforcement actions
Missouri regulators issued 2 boil water orders to Clarkton PWS between 2012 and 2015. The most recent was a boil water order in April 2015.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Apr 29, 2015 | Missouri | Boil water order | 1 violation |
| Jun 1, 2012 | Missouri | Boil water order | 1 violation (1 health-based): Groundwater Rule |
What the violations mean
Groundwater Rule
4 incidentsThe 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 each of these violations.
Where the water comes from
Clarkton PWS draws water from 2 wells.
Annual water quality report
Clarkton PWS 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