Public water system record
Lyon Co RWD 4
Serves an area of Lyon County, KS that includes Neosho Rapids · 980 people served
Federal records show no health-based violations and 2 monitoring/reporting issues for Lyon Co RWD 4 in the last ten years. At least one of these issues remains unresolved.
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
- Lyon Co RWD 4 buys its water from City of Emporia.
- Record on file since 1993, with 0 health-based violations before October 19, 2016.
Check whether Lyon Co RWD 4 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
|
Jul 2, 2025 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 31, 2022 | Resolved |
Full record since 1993
EPA's records for Lyon Co RWD 4 go back to 1993. Before October 19, 2016 they list no health-based violations and 6 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 3 |
| 2000s | 0 | 3 |
| 2020s | 0 | 2 |
Where the water comes from
Lyon Co RWD 4 buys its water from City of Emporia. It lists no wells or intakes of its own.
Buys water from
- City of Emporia Emporia, KS
Annual water quality report
Lyon Co RWD 4 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 Kansas.
Certified drinking water labs by state EPA guidance for private wells