Public water system · KS2008903
ActiveMankato, City of
At a glance
City of Mankato (PWSID KS2008903) is an active community water system in Jewell County, Kansas. It reports serving 848 people through 537 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in November 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
848
Service connections
537
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Mankato compare with other water systems in Jewell County?
By EPA's size categories, City of Mankato is a small system (501 to 3,300 people). Jewell County has 7 active public water systems, and City of Mankato is the 2nd-largest of them by population served. Its population served is about 132% above the county average of 365 people per system, and accounts for 33% of the 2,554 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 Mankato 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 Mankato?
EPA lists City of Mankato 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. 7 of the 7 active systems in Jewell County (100%) are also owned by a local government.
Does City of Mankato have drinking water violations?
EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in November 2024. The violations listed here began between October 1992 and November 2024. By type: 3 monitoring and reporting, 3 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Consumer Confidence Rule (3 of them). EPA lists 7 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 |
|---|---|---|---|---|
| 2024-11-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2023-10-02 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2023-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2019-07-02 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1992-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
All 7 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 Mankato: frequently asked questions
Who runs City of Mankato?
City of Mankato (PWSID KS2008903) 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 Mankato serve?
City of Mankato reports serving 848 people through 537 service connections in Jewell County, Kansas.
Where does City of Mankato 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 Mankato have any drinking water violations?
EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in November 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 Mankato'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 7 violations for this system; 1 is health-based, and the most recent began in November 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 Mankato's water quality report?
As a community water system, City of Mankato 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 Jewell County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Jewell Co Rwd 1 | Jewell | 959 | Community | Groundwater |
| Jewell, City of | Jewell | 365 | Community | Purchased surface water |
| Burr Oak, City of | Jewell | 142 | Community | Groundwater |
| Formoso, City of | Jewell | 92 | Community | Purchased groundwater |
| Randall, City of | Jewell | 80 | Community | Purchased surface water |
| Esbon, City of | Jewell | 68 | 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, “Mankato, City of, PWSID KS2008903, Kansas”, https://aquacensus.com/water-systems/kansas/mankato-city-of-ks2008903 (data as of October 1, 2026).