Public water system · KS2004503
ActiveLawrence, City of
At a glance
City of Lawrence (PWSID KS2004503) is an active community water system in Douglas County, Kansas. It reports serving 95,256 people through 32,541 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; none is health-based, and the most recent began in April 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
95,256
Service connections
32,541
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does City of Lawrence compare with other water systems in Douglas County?
By EPA's size categories, City of Lawrence is a large system (10,001 to 100,000 people). Douglas County has 13 active public water systems, and City of Lawrence is the largest of them by population served. Its population served is about 8 times the county average of 11,946 people per system, and accounts for 61% 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 City of Lawrence is about 14 times 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 75 Kansas systems (7.2%) list surface water as their primary source.
Who owns and regulates City of Lawrence?
EPA lists City of Lawrence 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 City of Lawrence have drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in April 2019. The violations listed here began between July 2000 and April 2019. By type: 4 monitoring and reporting and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Interim Enhanced Surface Water Treatment Rule (2 of them). EPA lists 6 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 |
|---|---|---|---|---|
| 2019-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Carbon, totalcode 2920 | No | Resolved |
| 2017-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2002-09-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2002-08-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | 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 |
All 6 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 Lawrence: frequently asked questions
Who runs City of Lawrence?
City of Lawrence (PWSID KS2004503) 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 Lawrence serve?
City of Lawrence reports serving 95,256 people through 32,541 service connections in Douglas County, Kansas.
Where does City of Lawrence get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does City of Lawrence have any drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in April 2019. 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 Lawrence'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 6 violations for this system; none is health-based, and the most recent began in April 2019. 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 Lawrence's water quality report?
As a community water system, City of Lawrence 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 |
|---|---|---|---|---|
| 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 4 | Douglas | 3,000 | Community | Purchased 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, “Lawrence, City of, PWSID KS2004503, Kansas”, https://aquacensus.com/water-systems/kansas/lawrence-city-of-ks2004503 (data as of October 1, 2026).