Public water system · KS2000506

Active

Atchison, City of

At a glance

City of Atchison (PWSID KS2000506) is an active community water system in Atchison County, Kansas. It reports serving 10,694 people through 4,637 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in February 2024.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

10,694

Service connections

4,637

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDKS2000506

System typeCommunity water system

Activity statusActive

Population served10,694

Service connections4,637

Primary water sourceSurface water

Owner typeLocal government

Primacy agencyKS state drinking water program

City servedAtchison

StateKansas

ZIP—

CountyAtchison County

How does City of Atchison compare with other water systems in Atchison County?

By EPA's size categories, City of Atchison is a large system (10,001 to 100,000 people). Atchison County has 8 active public water systems, and City of Atchison is the largest of them by population served. Its population served is about 5.2 times the county average of 2,070 people per system, and accounts for 65% of the 16,560 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 Atchison is about 60% above 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 Atchison?

EPA lists City of Atchison 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. 8 of the 8 active systems in Atchison County (100%) are also owned by a local government.

Does City of Atchison have drinking water violations?

Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in February 2024. The violations listed here began between January 2015 and February 2024. By type: 5 monitoring and reporting, 5 required treatment not met and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Carbon, total (4 of them). EPA lists 11 as resolved and 1 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
2024-02-15	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Unaddressed
2023-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2020-05-13	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2019-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Bromatecode 1011	No	Resolved
2019-03-01	Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2018-12-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2018-12-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2017-12-30	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2015-10-01	Required treatment not metTreatment Technique Precursor Removal · code 46	Carbon, totalcode 2920	Yes	Resolved
2015-07-01	Required treatment not metTreatment Technique Precursor Removal · code 46	Carbon, totalcode 2920	Yes	Resolved
2015-04-01	Required treatment not metTreatment Technique Precursor Removal · code 46	Carbon, totalcode 2920	Yes	Resolved
2015-01-01	Required treatment not metTreatment Technique Precursor Removal · code 46	Carbon, totalcode 2920	Yes	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.

City of Atchison: frequently asked questions

Who runs City of Atchison?

City of Atchison (PWSID KS2000506) 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 Atchison serve?

City of Atchison reports serving 10,694 people through 4,637 service connections in Atchison County, Kansas.

Where does City of Atchison 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 Atchison have any drinking water violations?

Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in February 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 City of Atchison'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. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in February 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 City of Atchison's water quality report?

As a community water system, City of Atchison 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 Atchison County

Water system	County	Population served	Type	Source
Atchison Co Rwd 5c	Atchison	3,690	Community	Purchased surface water
Atchison Co Rwd 6	Atchison	670	Community	Purchased surface water
Effingham, City of	Atchison	500	Community	Groundwater
Atchison Co Rwd 1	Atchison	490	Community	Purchased surface water
Lancaster, City of	Atchison	248	Community	Purchased surface water
Muscotah, City of	Atchison	158	Community	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, “Atchison, City of, PWSID KS2000506, Kansas”, https://aquacensus.com/water-systems/kansas/atchison-city-of-ks2000506 (data as of October 1, 2026).