Public water system · KS2008718
ActiveOzawkie, City of
At a glance
City of Ozawkie (PWSID KS2008718) is an active community water system in Jefferson County, Kansas. It reports serving 636 people through 255 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; none is health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
636
Service connections
255
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Ozawkie compare with other water systems in Jefferson County?
By EPA's size categories, City of Ozawkie is a small system (501 to 3,300 people). Jefferson County has 19 active public water systems. Its population served is about 40% below the county average of 1,061 people per system, and accounts for 3.2% of the 20,164 people reported by systems filed under the county. Across Kansas, the 1,041 active systems average 2,800 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Ozawkie is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Kansas has 863 active community water systems, 83% of the state's 1,041 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 587 Kansas systems (56%) list groundwater as their primary source.
Who owns and regulates City of Ozawkie?
EPA lists City of Ozawkie as owned by a local government. The KS state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 17 of the 19 active systems in Jefferson County (89%) are also owned by a local government.
Does City of Ozawkie have drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in January 2026. The violations listed here began between January 1994 and January 2026. By type: 9 monitoring and reporting and 2 monitoring. The contaminant or rule involved most often is Lead and Copper Rule (6 of them). EPA lists 9 as resolved and 2 as unaddressed. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2024-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2022-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2022-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2022-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-12-31 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2017-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2007-02-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1994-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
All 11 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.
City of Ozawkie: frequently asked questions
Who runs City of Ozawkie?
City of Ozawkie (PWSID KS2008718) is a community water system owned by a local government. It is regulated by the KS state drinking water program.
How many people does City of Ozawkie serve?
City of Ozawkie reports serving 636 people through 255 service connections in Jefferson County, Kansas.
Where does City of Ozawkie get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does City of Ozawkie have any drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in January 2026. 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.
Is City of Ozawkie's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 11 violations for this system; none is health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the KS state drinking water program.
Where can I find City of Ozawkie's water quality report?
As a community water system, City of Ozawkie must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Jefferson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Jefferson Co Rwd 12 | Jefferson | 3,635 | Community | Purchased surface water |
| Jefferson Co Rwd 3 | Jefferson | 2,435 | Community | Groundwater |
| Jefferson Co Rwd 1 | Jefferson | 2,343 | Community | Groundwater |
| Jefferson Co Rwd 13 | Jefferson | 2,115 | Community | Groundwater |
| Jefferson Co Rwd 7 | Jefferson | 1,180 | Community | Groundwater |
| Oskaloosa, City of | Jefferson | 1,086 | Community | Purchased groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Ozawkie, City of, PWSID KS2008718, Kansas”, https://aquacensus.com/water-systems/kansas/ozawkie-city-of-ks2008718 (data as of October 1, 2026).