Public water system record
Seneca PWS
Serves Seneca, Newton County, MO · 2,390 people served
Federal records show no health-based violations and 2 monitoring/reporting issues for Seneca 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
- 2
Key facts
- Seneca PWS draws water from 3 wells.
- Most recent formal enforcement: signed compliance agreement by Missouri, May 2005.
- Record on file since 1991, with 9 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 1,060 unknown out of 1,060 service lines.
Check whether Seneca 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 |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2017 | Resolved |
Full record since 1991
EPA's records for Seneca PWS go back to 1991. Before October 19, 2016 they list 9 health-based violations (9 resolved) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 3 | 0 |
| 2000s | 6 | 3 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began December 2005, Resolved.
Show all 9 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2001 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
May 1, 1995 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 1995 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1991 | Resolved |
Enforcement actions
Missouri regulators took 1 formal enforcement action against Seneca PWS in 2005. The most recent was a signed compliance agreement in May 2005.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 23, 2005 | Missouri | Signed compliance agreement | 4 violations (3 health-based): Total Coliform |
Where the water comes from
Seneca PWS draws water from 3 wells.
Annual water quality report
Seneca 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