Public water system · KS2008717
ActiveJefferson Co Rwd 12
At a glance
Jefferson Co Rwd 12 (PWSID KS2008717) is an active community water system in Jefferson County, Kansas. It reports serving 3,635 people through 1,454 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in April 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,635
Service connections
1,454
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Jefferson Co Rwd 12 compare with other water systems in Jefferson County?
By EPA's size categories, Jefferson Co Rwd 12 is a medium system (3,301 to 10,000 people). Jefferson County has 19 active public water systems, and Jefferson Co Rwd 12 is the largest of them by population served. Its population served is about 3.4 times the county average of 1,061 people per system, and accounts for 18% 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 Jefferson Co Rwd 12 is about half of 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 278 Kansas systems (27%) list purchased surface water as their primary source.
Who owns and regulates Jefferson Co Rwd 12?
EPA lists Jefferson Co Rwd 12 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 Jefferson Co Rwd 12 have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in April 2018. The violations listed here began between July 1993 and April 2018. By type: 3 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminants or rules involved are Total trihalomethanes (TTHM), Haloacetic acids (HAA5), Consumer Confidence Rule and Lead and Copper Rule. EPA lists 4 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2018-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2018-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2000-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
All 4 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.
Jefferson Co Rwd 12: frequently asked questions
Who runs Jefferson Co Rwd 12?
Jefferson Co Rwd 12 (PWSID KS2008717) is a community water system owned by a local government. It is regulated by the KS state drinking water program.
How many people does Jefferson Co Rwd 12 serve?
Jefferson Co Rwd 12 reports serving 3,635 people through 1,454 service connections in Jefferson County, Kansas.
Where does Jefferson Co Rwd 12 get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Jefferson Co Rwd 12 have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in April 2018. 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 Jefferson Co Rwd 12'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 4 violations for this system; none is health-based, and the most recent began in April 2018. For current results, consult the system's annual water quality report, EPA ECHO, or the KS state drinking water program.
Where can I find Jefferson Co Rwd 12's water quality report?
As a community water system, Jefferson Co Rwd 12 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 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 |
| Valley Falls, City of | Jefferson | 1,086 | Community | Surface water |
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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, “Jefferson Co Rwd 12, PWSID KS2008717, Kansas”, https://aquacensus.com/water-systems/kansas/jefferson-co-rwd-12-ks2008717 (data as of October 1, 2026).