Public water system · KS2004509
ActiveDouglas Co Rwd 4
At a glance
Douglas Co Rwd 4 (PWSID KS2004509) is an active community water system in Douglas County, Kansas. It reports serving 3,000 people through 1,188 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in April 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,000
Service connections
1,188
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Douglas Co Rwd 4 compare with other water systems in Douglas County?
By EPA's size categories, Douglas Co Rwd 4 is a small system (501 to 3,300 people). Douglas County has 13 active public water systems, and Douglas Co Rwd 4 is the 6th-largest of them by population served. Its population served is well below the county average of 11,946 people per system, and accounts for 1.9% of the 155,291 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 Douglas Co Rwd 4 is about 55% 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. 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 Douglas Co Rwd 4?
EPA lists Douglas Co Rwd 4 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. 11 of the 13 active systems in Douglas County (85%) are also owned by a local government.
Does Douglas Co Rwd 4 have drinking water violations?
EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in April 2024. The violations listed here began between July 1993 and April 2024. By type: 6 monitoring and reporting, 4 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule (4 of them). EPA lists 11 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 |
|---|---|---|---|---|
| 2024-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2004-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2003-11-01 | 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 |
| 1994-05-01 | 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 | Public notice, recordkeeping or otherNotification, Public · code 06 | 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 |
| 1993-07-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | 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.
Douglas Co Rwd 4: frequently asked questions
Who runs Douglas Co Rwd 4?
Douglas Co Rwd 4 (PWSID KS2004509) is a community water system owned by a local government. It is regulated by the KS state drinking water program.
How many people does Douglas Co Rwd 4 serve?
Douglas Co Rwd 4 reports serving 3,000 people through 1,188 service connections in Douglas County, Kansas.
Where does Douglas Co Rwd 4 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 Douglas Co Rwd 4 have any drinking water violations?
EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in April 2024. 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 Douglas Co Rwd 4'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; 1 is health-based, and the most recent began in April 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the KS state drinking water program.
Where can I find Douglas Co Rwd 4's water quality report?
As a community water system, Douglas Co Rwd 4 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 Douglas County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lawrence, City of | Douglas | 95,256 | Community | Surface water |
| University of Kansas | Douglas | 35,000 | Community | Purchased surface water |
| Eudora, City of | Douglas | 6,449 | Community | Groundwater |
| Baldwin City, City of | Douglas | 4,882 | Community | Purchased surface water |
| Douglas Co Rwd 3 | Douglas | 4,663 | Community | Surface water |
| Douglas Co Rwd 5 | Douglas | 2,500 | Community | Purchased 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, “Douglas Co Rwd 4, PWSID KS2004509, Kansas”, https://aquacensus.com/water-systems/kansas/douglas-co-rwd-4-ks2004509 (data as of October 1, 2026).