Public water system · KS2001517

Active

Latham, City of

At a glance

City of Latham (PWSID KS2001517) is an active community water system in Butler County, Kansas. It reports serving 101 people through 65 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2021.

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

Population served

101

Service connections

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDKS2001517

System typeCommunity water system

Activity statusActive

Population served101

Service connections65

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyKS state drinking water program

City servedLatham

StateKansas

ZIP—

CountyButler County

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

By EPA's size categories, City of Latham is a very small system (500 people or fewer). Butler County has 21 active public water systems. Its population served is well below the county average of 2,310 people per system, and accounts for 0.2% of the 48,500 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 Latham 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. 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 City of Latham?

EPA lists City of Latham 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. 20 of the 21 active systems in Butler County (95%) are also owned by a local government.

Does City of Latham have drinking water violations?

Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2021. The violations listed here began between October 2019 and December 2021. By type: 5 monitoring and reporting, 3 monitoring, 2 public notice, recordkeeping or other and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Revised Total Coliform Rule (3 of them). EPA lists 10 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
2021-12-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2021-10-31	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Unaddressed
2021-10-31	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Unaddressed
2021-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2020-11-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2020-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2020-08-01	MonitoringMonitoring, Additional Routine (RTCR) · code 3B	Revised Total Coliform Rulecode 8000	No	Resolved
2020-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2020-06-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2020-06-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2020-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Resolved
2019-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	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 Latham: frequently asked questions

Who runs City of Latham?

City of Latham (PWSID KS2001517) 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 Latham serve?

City of Latham reports serving 101 people through 65 service connections in Butler County, Kansas.

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

Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2021. 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 Latham'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, 2 are health-based, and the most recent began in December 2021. 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 Latham's water quality report?

As a community water system, City of Latham 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 Butler County

Water system	County	Population served	Type	Source
El Dorado, City of	Butler	12,810	Community	Surface water
Augusta, City of	Butler	9,267	Community	Surface water
Butler Co Rwd 5	Butler	6,457	Community	Purchased surface water
Rose Hill, City of	Butler	4,269	Community	Purchased surface water
Butler Co Rwd 6	Butler	2,655	Community	Purchased surface water
Butler Co Rwd 4	Butler	1,565	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, “Latham, City of, PWSID KS2001517, Kansas”, https://aquacensus.com/water-systems/kansas/latham-city-of-ks2001517 (data as of October 1, 2026).