Public water system · KS2011110
ActiveLyon Co Rwd 4
Community water system in Lyon County, Kansas, drawing primarily on purchased surface water.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
980
Service connections
395
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2022-10-31 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2006-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2001-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2000-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1999-10-19 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1994-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
All 9 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Lyon Co Rwd 4: frequently asked questions
Is Lyon Co Rwd 4's water safe to drink?
Lyon Co Rwd 4 is an active community water system regulated under the Safe Drinking Water Act, overseen by the KS state drinking water program. EPA's SDWA data records violations for this system — the most recent are listed on this page; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Lyon Co Rwd 4?
Lyon Co Rwd 4 (PWSID KS2011110) is a local government-owned community water system, regulated by the KS state drinking water program.
How many people does Lyon Co Rwd 4 serve?
Lyon Co Rwd 4 reports serving 980 people through 395 service connections in Lyon County, Kansas.
Where does Lyon Co Rwd 4 get its water?
EPA SDWIS lists this system's primary water source as purchased surface water.
Other water systems in Lyon County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Emporia, City of | Lyon | 24,009 | Community | Surface water |
| Lyon Co Rwd 1 | Lyon | 1,595 | Community | Purchased surface water |
| Lyon Co Rwd 5 | Lyon | 1,310 | Community | Purchased surface water |
| Lyon Co Rwd 2 | Lyon | 750 | Community | Purchased surface water |
| Olpe, City of | Lyon | 513 | Community | Purchased surface water |
| Lyon Co Rwd 3 | Lyon | 479 | Community | Purchased surface water |
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