Public water system · KS2003103
ActiveGridley, City of
At a glance
City of Gridley (PWSID KS2003103) is an active community water system in Coffey County, Kansas. It reports serving 312 people through 216 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
312
Service connections
216
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does City of Gridley compare with other water systems in Coffey County?
By EPA's size categories, City of Gridley is a very small system (500 people or fewer). Coffey County has 9 active public water systems. Its population served is well below the county average of 1,064 people per system, and accounts for 3.3% of the 9,572 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 Gridley 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 278 Kansas systems (27%) list purchased surface water as their primary source.
Who owns and regulates City of Gridley?
EPA lists City of Gridley 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. 9 of the 9 active systems in Coffey County (100%) are also owned by a local government.
Does City of Gridley have drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in July 2025. The violations listed here began between July 1993 and July 2025. By type: 3 monitoring and reporting, 1 reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 4 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 |
| 2019-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1997-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
All 5 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 Gridley: frequently asked questions
Who runs City of Gridley?
City of Gridley (PWSID KS2003103) 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 Gridley serve?
City of Gridley reports serving 312 people through 216 service connections in Coffey County, Kansas.
Where does City of Gridley get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does City of Gridley have any drinking water violations?
EPA's records list 5 violations for this system; 1 is 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 Gridley'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 5 violations for this system; 1 is 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 Gridley's water quality report?
As a community water system, City of Gridley 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 Coffey County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Burlington, City of | Coffey | 2,641 | Community | Surface water |
| Coffey Co Rwd 3 | Coffey | 1,903 | Community | Purchased surface water |
| Coffey Co Rwd 2e | Coffey | 1,254 | Community | Purchased surface water |
| Coffey Co Rwd 2 | Coffey | 1,146 | Community | Purchased surface water |
| Lebo, City of | Coffey | 883 | Community | Purchased surface water |
| Waverly, City of | Coffey | 574 | Community | Purchased surface water |
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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, “Gridley, City of, PWSID KS2003103, Kansas”, https://aquacensus.com/water-systems/kansas/gridley-city-of-ks2003103 (data as of October 1, 2026).