Public water system record
Southwest City PWS
Serves Southwest City, McDonald County, MO · 976 people served
Federal records show 2 health-based violations and 4 monitoring/reporting issues for Southwest City PWS in the last ten years, including an unresolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 2
- Resolved
- 1
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 4
Key facts
- Southwest City PWS draws water from 2 wells.
- Most recent enforcement action: boil water order by Missouri, January 2000.
- Record on file since 1995, with 4 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 334 unknown out of 343 service lines.
Check whether Southwest City 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 | Sep 9, 2025 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Dec 1, 2020 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Dec 15, 2025 | Active |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Resolved |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Resolved |
Full record since 1995
EPA's records for Southwest City PWS go back to 1995. Before October 19, 2016 they list 4 health-based violations (2 resolved, 2 archived by EPA without a recorded fix) and 15 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 2 | 3 |
| 2000s | 2 | 10 |
| 2010 to October 18, 2016 | 0 | 2 |
| 2020s | 2 | 4 |
Most recent health-based violation before October 19, 2016: Total Coliform, began January 2000, Archived.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2000 | Archived |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jan 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1996 | Archived |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Oct 1, 1996 | Resolved |
Enforcement actions
Missouri regulators issued 2 boil water orders to Southwest City PWS between 1996 and 2000. The most recent was a boil water order in January 2000.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jan 27, 2000 | Missouri | Boil water order | 1 violation (1 health-based): Total Coliform |
| Oct 31, 1996 | Missouri | Boil water order | 1 violation (1 health-based): Total Coliform |
What the violations mean
Groundwater Rule
2 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
Southwest City PWS draws water from 2 wells.
Annual water quality report
Southwest City 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