Public water system · KS2009115
ActiveOlathe, City of
Community water system in Johnson County, Kansas, drawing primarily on surface water.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
143,014
Service connections
34,455
Primary source
SW
Surface water
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-03-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorine dioxidecode 1008 | No | Resolved |
| 2022-05-13 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-05-13 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Carbon, totalcode 2920 | No | Resolved |
| 2020-12-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2020-12-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2011-03-01 | Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2011-02-01 | Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2003-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2003-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2003-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2002-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
The 12 most recent 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.
Olathe, City of: frequently asked questions
Is Olathe, City of's water safe to drink?
Olathe, City of 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, including health-based violations; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Olathe, City of?
Olathe, City of (PWSID KS2009115) is a local government-owned community water system, regulated by the KS state drinking water program.
How many people does Olathe, City of serve?
Olathe, City of reports serving 143,014 people through 34,455 service connections in Johnson County, Kansas.
Where does Olathe, City of get its water?
EPA SDWIS lists this system's primary water source as surface water.
Other water systems in Johnson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Water District 1 of Johnson Co | Johnson | 490,000 | Community | Surface water |
| Gardner, City of | Johnson | 23,942 | Community | Surface water |
| Johnson Co Rwd 7 | Johnson | 6,457 | Community | Purchased surface water |
| Desoto, City of | Johnson | 4,645 | Community | Groundwater |
| Edgerton, City of | Johnson | 1,741 | Community | Purchased surface water |
| New Century Air Center | Johnson | 500 | Non-transient non-community | Purchased surface water |
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