Public water system · KS2011703

Active

Waterville, City of

At a glance

City of Waterville (PWSID KS2011703) is an active community water system in Marshall County, Kansas. It reports serving 656 people through 364 service connections. Its primary water source is groundwater, 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 July 2025.

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

Population served

656

Service connections

364

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDKS2011703

System typeCommunity water system

Activity statusActive

Population served656

Service connections364

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyKS state drinking water program

City servedWaterville

StateKansas

ZIP—

CountyMarshall County

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

By EPA's size categories, City of Waterville is a small system (501 to 3,300 people). Marshall County has 10 active public water systems, and City of Waterville is the 5th-largest of them by population served. Its population served is about 18% below the county average of 797 people per system, and accounts for 8.2% of the 7,965 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 Waterville 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 587 Kansas systems (56%) list groundwater as their primary source.

Who owns and regulates City of Waterville?

EPA lists City of Waterville 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. 10 of the 10 active systems in Marshall County (100%) are also owned by a local government.

Does City of Waterville have drinking water violations?

Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in July 2025. The violations listed here began between July 2000 and July 2025. By type: 5 contaminant level above the legal limit, 3 monitoring and reporting, 2 reporting and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Nitrate (5 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
2025-07-02	ReportingNotification, Known or Potential LSL · code 4H	Lead and Copper Rule Revisionscode 5200	No	Unaddressed
2024-10-17	ReportingLSL Reporting · code 4G	Lead and Copper Rule Revisionscode 5200	No	Resolved
2021-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01	Nitratecode 1040	Yes	Resolved
2021-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01	Nitratecode 1040	Yes	Resolved
2021-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01	Nitratecode 1040	Yes	Resolved
2020-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01	Nitratecode 1040	Yes	Resolved
2020-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01	Nitratecode 1040	Yes	Resolved
2017-04-01	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2016-09-29	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2005-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2002-02-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2000-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	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 Waterville: frequently asked questions

Who runs City of Waterville?

City of Waterville (PWSID KS2011703) 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 Waterville serve?

City of Waterville reports serving 656 people through 364 service connections in Marshall County, Kansas.

Where does City of Waterville get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does City of Waterville 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 July 2025. 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 Waterville'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 July 2025. 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 Waterville's water quality report?

As a community water system, City of Waterville 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 Marshall County

Water system	County	Population served	Type	Source
Marysville, City of	Marshall	3,417	Community	Groundwater
Marshall Co Rwd 3	Marshall	1,388	Community	Groundwater
Blue Rapids, City of	Marshall	921	Community	Groundwater
Frankfort, City of	Marshall	717	Community	Groundwater
Axtell, City of	Marshall	398	Community	Groundwater
Beattie, City of	Marshall	199	Community	Purchased 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, “Waterville, City of, PWSID KS2011703, Kansas”, https://aquacensus.com/water-systems/kansas/waterville-city-of-ks2011703 (data as of October 1, 2026).