Public water system · NE3111916
ActiveMadison, City of
At a glance
City of Madison (PWSID NE3111916) is an active community water system in Madison County, Nebraska. It reports serving 2,135 people through 986 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; 3 are health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,135
Service connections
986
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Madison compare with other water systems in Madison County?
By EPA's size categories, City of Madison is a small system (501 to 3,300 people). Madison County has 22 active public water systems, and City of Madison is the 2nd-largest of them by population served. Its population served is about 37% above the county average of 1,561 people per system, and accounts for 6.2% of the 34,336 people reported by systems filed under the county. Across Nebraska, the 1,226 active systems average 1,472 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Madison 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. Nebraska has 599 active community water systems, 49% of the state's 1,226 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,095 Nebraska systems (89%) list groundwater as their primary source.
Who owns and regulates City of Madison?
EPA lists City of Madison as owned by a local government. The NE state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 11 of the 22 active systems in Madison County (50%) are also owned by a local government.
Does City of Madison have drinking water violations?
EPA's records list 4 violations for this system; 3 are health-based, and the most recent began in January 2026. The violations listed here began between May 1978 and January 2026. By type: 3 contaminant level above the legal limit and 1 monitoring. The contaminant or rule involved most often is Selenium (2 of them). EPA lists 3 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2002-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1980-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Seleniumcode 1045 | Yes | Resolved |
| 1978-05-18 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Seleniumcode 1045 | Yes | Archived |
All 4 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 Madison: frequently asked questions
Who runs City of Madison?
City of Madison (PWSID NE3111916) is a community water system owned by a local government. It is regulated by the NE state drinking water program.
How many people does City of Madison serve?
City of Madison reports serving 2,135 people through 986 service connections in Madison County, Nebraska.
Where does City of Madison 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 Madison have any drinking water violations?
EPA's records list 4 violations for this system; 3 are health-based, and the most recent began in January 2026. 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 Madison'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 4 violations for this system; 3 are health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the NE state drinking water program.
Where can I find City of Madison's water quality report?
As a community water system, City of Madison 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 Madison County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Norfolk, City of | Madison | 26,147 | Community | Groundwater |
| Battle Creek, City of | Madison | 1,194 | Community | Groundwater |
| Tyson Fresh Meats Inc. Madison | Madison | 1,100 | Non-transient non-community | Groundwater |
| Tilden, City of | Madison | 957 | Community | Groundwater |
| Newman Grove, City of | Madison | 721 | Community | Groundwater |
| Northern Heights Baptist Church | Madison | 650 | Transient non-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, “Madison, City of, PWSID NE3111916, Nebraska”, https://aquacensus.com/water-systems/nebraska/madison-city-of-ne3111916 (data as of October 1, 2026).