Public water system · KS2016112
ActiveManhattan, City of
At a glance
City of Manhattan (PWSID KS2016112) is an active community water system in Riley County, Kansas. It reports serving 54,763 people through 16,428 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in March 1994.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
54,763
Service connections
16,428
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Manhattan compare with other water systems in Riley County?
By EPA's size categories, City of Manhattan is a large system (10,001 to 100,000 people). Riley County has 13 active public water systems, and City of Manhattan is the largest of them by population served. Its population served is about 11 times the county average of 4,819 people per system, and accounts for 87% of the 62,651 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 Manhattan is about 8.2 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. 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 Manhattan?
EPA lists City of Manhattan 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 13 active systems in Riley County (54%) are also owned by a local government.
Does City of Manhattan have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in March 1994. The violations listed here began between September 1991 and March 1994. By type: 1 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 2 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 |
|---|---|---|---|---|
| 1994-03-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1991-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 2 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 Manhattan: frequently asked questions
Who runs City of Manhattan?
City of Manhattan (PWSID KS2016112) 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 Manhattan serve?
City of Manhattan reports serving 54,763 people through 16,428 service connections in Riley County, Kansas.
Where does City of Manhattan 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 Manhattan have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in March 1994. 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 Manhattan'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 2 violations for this system; 1 is health-based, and the most recent began in March 1994. 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 Manhattan's water quality report?
As a community water system, City of Manhattan 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 Riley County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Riley Co Rwd 1 | Riley | 2,108 | Community | Purchased groundwater |
| Ogden, City of | Riley | 1,721 | Community | Groundwater |
| Colonial Gardens Mobile Home Ct | Riley | 1,200 | Community | Purchased groundwater |
| Riley, City of | Riley | 977 | Community | Groundwater |
| Riverchase Mobile Home Park | Riley | 460 | Community | Groundwater |
| Leonardville, City of | Riley | 436 | 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, “Manhattan, City of, PWSID KS2016112, Kansas”, https://aquacensus.com/water-systems/kansas/manhattan-city-of-ks2016112 (data as of October 1, 2026).