Public water system record
Wellsville PWS
Serves Wellsville, Montgomery County, MO · 1,210 people served
Federal records show no health-based violations and 8 monitoring/reporting issues for Wellsville PWS in the last ten years. At least one of these issues remains unresolved.
System profile
Source water
Purchased surface water
ZIP
63384
EPA system ID
MO6010848
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 8
Key facts
- Wellsville PWS buys its water from Clarence Cannon Wholesale Wtr Comm.
- Most recent formal enforcement: signed compliance agreement by Missouri, August 2006.
- Record on file since 1980, with 70 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 52 service lines.
Check whether Wellsville 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 |
|
Public Notice
OTHER
|
Nov 15, 2023 | Active |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2022 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2020 | Resolved |
Full record since 1980
EPA's records for Wellsville PWS go back to 1980. Before October 19, 2016 they list 70 health-based violations (70 resolved) and 20 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 8 |
| 1990s | 2 | 3 |
| 2000s | 54 | 5 |
| 2010 to October 18, 2016 | 14 | 4 |
| 2020s | 0 | 8 |
Most recent health-based violation before October 19, 2016: Haloacetic Acids (HAA5), began July 2011, Resolved.
Show all 70 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 62.26 µg/L, federal limit 60 µg/L (at or just above the limit)
|
Jul 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 109.01 µg/L, federal limit 80 µg/L (1.4 times the limit)
|
Jul 1, 2011 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 72.73 µg/L, federal limit 60 µg/L (1.2 times the limit)
|
Apr 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 122.26 µg/L, federal limit 80 µg/L (1.5 times the limit)
|
Apr 1, 2011 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 77.85 µg/L, federal limit 60 µg/L (1.3 times the limit)
|
Jan 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 117.93 µg/L, federal limit 80 µg/L (1.5 times the limit)
|
Jan 1, 2011 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 91.46 µg/L, federal limit 60 µg/L (1.5 times the limit)
|
Oct 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 118 µg/L, federal limit 80 µg/L (1.5 times the limit)
|
Oct 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 106.2 µg/L, federal limit 60 µg/L (1.8 times the limit)
|
Jul 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 118.75 µg/L, federal limit 80 µg/L (1.5 times the limit)
|
Jul 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 109 µg/L, federal limit 60 µg/L (1.8 times the limit)
|
Apr 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 123 µg/L, federal limit 80 µg/L (1.5 times the limit)
|
Apr 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 153.22 µg/L, federal limit 60 µg/L (2.6 times the limit)
|
Jan 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 141.6 µg/L, federal limit 80 µg/L (1.8 times the limit)
|
Jan 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 147.62 µg/L, federal limit 60 µg/L (2.5 times the limit)
|
Oct 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 140.75 µg/L, federal limit 80 µg/L (1.8 times the limit)
|
Oct 1, 2009 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jul 1, 2009 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 155.44 µg/L, federal limit 60 µg/L (2.6 times the limit)
|
Jul 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 136.54 µg/L, federal limit 80 µg/L (1.7 times the limit)
|
Jul 1, 2009 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Apr 1, 2009 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 153.99 µg/L, federal limit 60 µg/L (2.6 times the limit)
|
Apr 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 122.15 µg/L, federal limit 80 µg/L (1.5 times the limit)
|
Apr 1, 2009 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jan 1, 2009 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 128.74 µg/L, federal limit 60 µg/L (2.1 times the limit)
|
Jan 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 106.09 µg/L, federal limit 80 µg/L (1.3 times the limit)
|
Jan 1, 2009 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Oct 1, 2008 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 128.82 µg/L, federal limit 60 µg/L (2.1 times the limit)
|
Oct 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 105.4 µg/L, federal limit 80 µg/L (1.3 times the limit)
|
Oct 1, 2008 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jul 1, 2008 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 107.73 µg/L, federal limit 60 µg/L (1.8 times the limit)
|
Jul 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 106.68 µg/L, federal limit 80 µg/L (1.3 times the limit)
|
Jul 1, 2008 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Apr 1, 2008 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 99.58 µg/L, federal limit 60 µg/L (1.7 times the limit)
|
Apr 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 109.75 µg/L, federal limit 80 µg/L (1.4 times the limit)
|
Apr 1, 2008 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jan 1, 2008 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 87.95 µg/L, federal limit 60 µg/L (1.5 times the limit)
|
Jan 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 111.25 µg/L, federal limit 80 µg/L (1.4 times the limit)
|
Jan 1, 2008 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Oct 1, 2007 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 81.23 µg/L, federal limit 60 µg/L (1.4 times the limit)
|
Oct 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 104.7 µg/L, federal limit 80 µg/L (1.3 times the limit)
|
Oct 1, 2007 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jul 1, 2007 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 85.78 µg/L, federal limit 60 µg/L (1.4 times the limit)
|
Jul 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 99.01 µg/L, federal limit 80 µg/L (1.2 times the limit)
|
Jul 1, 2007 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Apr 1, 2007 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 103.89 µg/L, federal limit 60 µg/L (1.7 times the limit)
|
Apr 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 105.32 µg/L, federal limit 80 µg/L (1.3 times the limit)
|
Apr 1, 2007 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 106.7 µg/L, federal limit 60 µg/L (1.8 times the limit)
|
Jan 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 95.59 µg/L, federal limit 80 µg/L (1.2 times the limit)
|
Jan 1, 2007 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 107.79 µg/L, federal limit 60 µg/L (1.8 times the limit)
|
Oct 1, 2006 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 94.15 µg/L, federal limit 80 µg/L (1.2 times the limit)
|
Oct 1, 2006 | Resolved |
20 older violations are not listed here. EPA ECHO has the complete list.
Enforcement actions
Missouri regulators took 1 formal enforcement action against Wellsville PWS and issued 1 boil water order between 2001 and 2006. The most recent was a signed compliance agreement in August 2006.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Aug 10, 2006 | Missouri | Signed compliance agreement | 44 violations (44 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), CARBON, TOTAL |
| Feb 27, 2001 | Missouri | Boil water order | 1 violation (1 health-based): Surface Water Treatment Rule |
Where the water comes from
Wellsville PWS buys its water from Clarence Cannon Wholesale Wtr Comm. It lists no wells or intakes of its own.
Buys water from
- Clarence Cannon Wholesale Wtr Comm Stoutsville, MO
Annual water quality report
Wellsville 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