Public water system record
St Mary PWS
Serves St. Mary, Ste. Genevieve County, MO · 350 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for St Mary PWS 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
- St Mary PWS buys its water from Ste Genevieve County PWSD 1 SC.
- Most recent formal enforcement: signed compliance agreement by Missouri, April 2012.
- Record on file since 1991, with 21 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 163 unknown out of 169 service lines.
Check whether St Mary 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.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Resolved |
Full record since 1991
EPA's records for St Mary PWS go back to 1991. Before October 19, 2016 they list 21 health-based violations (21 resolved) and 2 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 2 | 0 |
| 2000s | 3 | 1 |
| 2010 to October 18, 2016 | 16 | 1 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began August 2013, Resolved.
Show all 21 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
|
Jul 1, 2013 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2011 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Oct 1, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1991 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 1991 | Resolved |
Enforcement actions
Missouri regulators took 1 formal enforcement action against St Mary PWS and issued 1 boil water order between 2011 and 2012. The most recent was a signed compliance agreement in April 2012.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Apr 30, 2012 | Missouri | Signed compliance agreement | 15 violations (14 health-based): Total Coliform |
| Oct 28, 2011 | Missouri | Boil water order | 1 violation (1 health-based): Total Coliform |
Where the water comes from
St Mary PWS buys its water from Ste Genevieve County PWSD 1 SC. EPA also lists 1 well, all for emergency, seasonal or other part-time use.
Buys water from
- Ste Genevieve County PWSD 1 SC Ste Genevieve, MO
Annual water quality report
St Mary 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.
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 St Mary PWS 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