Public water system record
Platte Co PWSD 9
Serves an area of Platte County and Buchanan County, MO that includes Dearborn · 1,860 people served
Federal records show no health-based violations and 3 monitoring/reporting issues for Platte Co PWSD 9 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
- 3
Key facts
- Platte Co PWSD 9 buys its water from Kansas City PWS.
- Record on file since 1994, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 371 unknown out of 622 service lines.
Check whether Platte Co PWSD 9 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 |
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 30, 2023 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2020 | Resolved |
Full record since 1994
EPA's records for Platte Co PWSD 9 go back to 1994. Before October 19, 2016 they list 1 health-based violation (1 archived by EPA without a recorded fix) and 10 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 2 |
| 2000s | 0 | 7 |
| 2010 to October 18, 2016 | 0 | 1 |
| 2020s | 0 | 3 |
Most recent health-based violation before October 19, 2016: Total Coliform, began August 1998, Archived.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1998 | Archived |
Where the water comes from
Platte Co PWSD 9 buys its water from Kansas City PWS. It lists no wells or intakes of its own. It also has an emergency connection to Platte Co PWSD 4. 1 other community water system buys water from Platte Co PWSD 9. 2 other public water systems have emergency connections to Platte Co PWSD 9.
Buys water from
- Kansas City PWS Kansas City, MO
Emergency or part-time connections to
- Platte Co PWSD 4 Platte City, MO
Community systems that buy water from it
- Tracy PWS Tracy, MO
Annual water quality report
Platte Co PWSD 9 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