Public water system · NE3114504
ActiveMccook, City of
At a glance
City of Mccook (PWSID NE3114504) is an active community water system in Red Willow County, Nebraska. It reports serving 7,450 people through 3,653 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, 11 are health-based, and the most recent began in October 2005.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
7,450
Service connections
3,653
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Mccook compare with other water systems in Red Willow County?
By EPA's size categories, City of Mccook is a medium system (3,301 to 10,000 people). Red Willow County has 6 active public water systems, and City of Mccook is the largest of them by population served. Its population served is about 5.2 times the county average of 1,432 people per system, and accounts for 87% of the 8,591 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 Mccook is about 11% above 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 Mccook?
EPA lists City of Mccook 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. 5 of the 6 active systems in Red Willow County (83%) are also owned by a local government.
Does City of Mccook have drinking water violations?
Of the 12 most recent violations in EPA's records, 11 are health-based, and the most recent began in October 2005. The violations listed here began between October 2003 and October 2005. By type: 11 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Nitrate-Nitrite (6 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2005-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Uraniumcode 4006 | Yes | Resolved |
| 2005-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitrate-Nitritecode 1038 | Yes | Resolved |
| 2005-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitrate-Nitritecode 1038 | Yes | Resolved |
| 2005-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Uraniumcode 4006 | Yes | Resolved |
| 2005-06-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2005-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Uraniumcode 4006 | Yes | Resolved |
| 2005-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Nitrate-Nitritecode 1038 | Yes | Resolved |
| 2004-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Uraniumcode 4006 | Yes | Resolved |
| 2004-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Nitrate-Nitritecode 1038 | Yes | Resolved |
| 2004-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Nitrate-Nitritecode 1038 | Yes | Resolved |
| 2004-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2003-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Nitrate-Nitritecode 1038 | 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 Mccook: frequently asked questions
Who runs City of Mccook?
City of Mccook (PWSID NE3114504) 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 Mccook serve?
City of Mccook reports serving 7,450 people through 3,653 service connections in Red Willow County, Nebraska.
Where does City of Mccook 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 Mccook have any drinking water violations?
Of the 12 most recent violations in EPA's records, 11 are health-based, and the most recent began in October 2005. 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 Mccook'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, 11 are health-based, and the most recent began in October 2005. 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 Mccook's water quality report?
As a community water system, City of Mccook 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 Red Willow County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Indianola, City of | Red Willow | 584 | Community | Purchased groundwater |
| Bartley, Village of | Red Willow | 355 | Community | Purchased groundwater |
| Danbury, Village of | Red Willow | 88 | Community | Groundwater |
| Lebanon, Village of | Red Willow | 58 | Community | Groundwater |
| Mccook Rest Area | Red Willow | 56 | 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, “Mccook, City of, PWSID NE3114504, Nebraska”, https://aquacensus.com/water-systems/nebraska/mccook-city-of-ne3114504 (data as of October 1, 2026).