Public water system record
Osage County PWSD 4
Serves an area of Osage County and Maries County, MO that includes Argyle · 357 people served
Federal records show no health-based violations and 12 monitoring/reporting issues for Osage County PWSD 4 in the last ten years. At least one of these issues remains unresolved.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 12
Key facts
- Osage County PWSD 4 draws water from 1 well.
- Most recent formal enforcement: signed compliance agreement by Missouri, September 1998.
- Record on file since 1980, with 8 health-based violations before October 20, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 130 service lines.
Check whether Osage 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 |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 30, 2025 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2024 | Resolved |
|
Public Notice
OTHER
|
May 30, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2018 | Resolved |
|
Public Notice
OTHER
|
Mar 3, 2017 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Apr 1, 2011 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
Full record since 1980
EPA's records for Osage County PWSD 4 go back to 1980. Before October 20, 2016 they list 8 health-based violations (8 resolved) and 10 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 2 |
| 1990s | 7 | 1 |
| 2000s | 1 | 1 |
| 2010 to October 19, 2016 | 0 | 6 |
| October 20, 2016 to 2019 | 0 | 3 |
| 2020s | 0 | 7 |
Most recent health-based violation before October 20, 2016: Total Coliform, began November 2005, Resolved.
Show all 8 health-based violations before October 20, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2005 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jul 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1998 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jun 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1997 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1997 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1997 | Resolved |
Enforcement actions
Missouri regulators took 1 formal enforcement action against Osage County PWSD 4 and issued 2 boil water orders in 1998. The most recent was a signed compliance agreement in September 1998.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 21, 1998 | Missouri | Signed compliance agreement | 7 violations (7 health-based): Total Coliform |
| Aug 3, 1998 | Missouri | Boil water order | 1 violation (1 health-based): Total Coliform |
| Jun 15, 1998 | Missouri | Boil water order | 1 violation (1 health-based): Total Coliform |
Where the water comes from
Osage County PWSD 4 draws water from 1 well.
Annual water quality report
Osage 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.
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 Osage County PWSD 4 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 Missouri.
Certified drinking water labs by state EPA guidance for private wells