Public water system record
Leadwood PWS
Serves Leadwood, St. Francois County, MO · 1,200 people served
Federal records show 30 health-based violations and 5 monitoring/reporting issues for Leadwood PWS in the last ten years. The most serious issue in this window was a Combined Radium (-226 and -228) violation that EPA lists as archived, not resolved.
System profile
Source water
Groundwater
ZIP
63653
EPA system ID
MO4010456
- Health-based violations, last 10 years
- 30
- Resolved
- 26
- Unresolved
- 0
- Archived by EPA
- 4
- Any acute record
- No
- Monitoring issues, last 10 years
- 5
Key facts
- Leadwood PWS draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
- Highest measured level in the last 10 years: Combined Radium (-226 and -228), 11.73 pCi/L, federal limit 5 pCi/L (2.3 times the limit), 2016.
- Most recent formal enforcement: compliance order (no penalty) by Missouri, March 2025.
- Record on file since 1984, with 32 health-based violations before October 19, 2016.
- Lead pipe inventory: 445 lead and 0 unknown out of 445 service lines.
Check whether Leadwood 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 |
|---|---|---|---|---|
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.65 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
340 | Oct 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.5 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
340 | Jul 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.43 pCi/L, federal limit 5 pCi/L (1.9 times the limit)
|
340 | Apr 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.28 pCi/L, federal limit 5 pCi/L (1.5 times the limit)
|
340 | Jan 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.83 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Oct 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.2 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jul 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.65 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
340 | Apr 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.53 pCi/L, federal limit 5 pCi/L (1.9 times the limit)
|
340 | Jan 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.38 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
340 | Oct 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.53 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
340 | Jul 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.95 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
340 | Apr 1, 2018 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.55 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Apr 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.28 pCi/L, federal limit 5 pCi/L (2.3 times the limit)
|
340 | Jan 1, 2018 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.9 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
340 | Jan 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.2 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
340 | Oct 1, 2017 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.81 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
340 | Oct 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.18 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Jul 1, 2017 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.44 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Jul 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.05 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Apr 1, 2017 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.13 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Apr 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.6 pCi/L, federal limit 5 pCi/L (1.9 times the limit)
|
340 | Jan 1, 2017 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.27 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Jan 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.03 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Oct 1, 2016 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.68 pCi/L, federal limit 15 pCi/L (at or just above the limit)
|
340 | Oct 1, 2016 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.03 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
340 | Jul 1, 2016 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.71 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Jul 1, 2016 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.18 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
340 | Apr 1, 2016 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.06 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Apr 1, 2016 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.73 pCi/L, federal limit 5 pCi/L (2.3 times the limit)
|
340 | Jan 1, 2016 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.36 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Jan 1, 2016 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Groundwater Rule
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Groundwater Rule
Monitoring and reporting
|
Aug 1, 2024 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Aug 1, 2023 | Resolved |
|
Public Notice
OTHER
|
Aug 11, 2013 | Resolved |
Full record since 1984
EPA's records for Leadwood PWS go back to 1984. Before October 19, 2016 they list 32 health-based violations (30 resolved, 2 archived by EPA without a recorded fix) and 23 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 4 | 0 |
| 1990s | 0 | 4 |
| 2000s | 20 | 13 |
| 2010 to October 18, 2016 | 8 | 6 |
| October 19, 2016 to 2019 | 18 | 0 |
| 2020s | 4 | 4 |
Most recent health-based violation before October 19, 2016: Combined Radium (-226 and -228), began October 2016, Resolved.
Show all 32 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.03 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
Oct 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.68 pCi/L, federal limit 15 pCi/L (at or just above the limit)
|
Oct 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.03 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
Jul 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.71 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Jul 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.18 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
Apr 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.06 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Apr 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.73 pCi/L, federal limit 5 pCi/L (2.3 times the limit)
|
Jan 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.36 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
Jan 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.35 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
Oct 1, 2004 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Oct 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jul 1, 2004 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Jul 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Apr 1, 2004 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Apr 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jan 1, 2004 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Jan 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Oct 1, 2003 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Oct 1, 2003 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jul 1, 2003 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Jul 1, 2003 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Apr 1, 2003 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Apr 1, 2003 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jan 1, 2003 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Jan 1, 2003 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Apr 1, 2002 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Apr 1, 2002 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Sep 1, 2000 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Sep 1, 2000 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Dec 6, 1984 | Archived |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Dec 6, 1984 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Dec 6, 1984 | Archived |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Dec 6, 1984 | Resolved |
Enforcement actions
Missouri regulators took 3 formal enforcement actions against Leadwood PWS between 2005 and 2025. The most recent was a compliance order (no penalty) in March 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Mar 12, 2025 | Missouri | Compliance order (no penalty) | 4 violations (3 health-based): Combined Radium (-226 and -228), Groundwater Rule |
| Mar 15, 2019 | Missouri | Compliance order (no penalty) | 27 violations (26 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U, Groundwater Rule |
| Nov 22, 2005 | Missouri | Signed compliance agreement | 31 violations (22 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228) |
What the violations mean
Combined Radium (-226 and -228)
20 incidentsTest results for Combined Radium (-226 and -228) were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
Gross Alpha, Excl. Radon and U
10 incidentsTest results for Gross Alpha, Excl. Radon and U were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
Where the water comes from
Leadwood PWS draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
Leadwood 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