Public water system record
Knob Noster PWS
Serves Knob Noster, Johnson County, MO · 2,863 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Knob Noster 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
- Knob Noster PWS draws water from 3 wells.
- Record on file since 1994, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 1 lead and 1,060 unknown out of 1,273 service lines.
Check whether Knob Noster 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 |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2023 | Resolved |
Full record since 1994
EPA's records for Knob Noster PWS go back to 1994. Before October 19, 2016 they list 1 health-based violation (1 archived by EPA without a recorded fix) and 24 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 22 |
| 2000s | 0 | 2 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began June 1999, Archived.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1999 | Archived |
Where the water comes from
Knob Noster PWS draws water from 3 wells.
Annual water quality report
Knob Noster 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