Public water system · MN1870005
ActiveHanley Falls
At a glance
Hanley Falls (PWSID MN1870005) is an active community water system in Yellow Medicine County, Minnesota. It reports serving 275 people through 123 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; 1 is health-based, and the most recent began in January 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
275
Service connections
123
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Hanley Falls compare with other water systems in Yellow Medicine County?
By EPA's size categories, Hanley Falls is a very small system (500 people or fewer). Yellow Medicine County has 13 active public water systems, and Hanley Falls is the 5th-largest of them by population served. Its population served is about half of the county average of 536 people per system, and accounts for 3.9% of the 6,968 people reported by systems filed under the county. Across Minnesota, the 6,465 active systems average 820 people each. Nationally, the average active community water system reports serving 6,703 people, so Hanley Falls 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. Minnesota has 987 active community water systems, 15% of the state's 6,465 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,261 Minnesota systems (97%) list groundwater as their primary source.
Who owns and regulates Hanley Falls?
EPA lists Hanley Falls as owned by a local government. The MN 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 13 active systems in Yellow Medicine County (69%) are also owned by a local government.
Does Hanley Falls have drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in January 2018. The violations listed here began between January 1994 and January 2018. By type: 3 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 4 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 |
|---|---|---|---|---|
| 2018-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
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.
Hanley Falls: frequently asked questions
Who runs Hanley Falls?
Hanley Falls (PWSID MN1870005) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Hanley Falls serve?
Hanley Falls reports serving 275 people through 123 service connections in Yellow Medicine County, Minnesota.
Where does Hanley Falls 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 Hanley Falls have any drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in January 2018. 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 Hanley Falls' 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; 1 is health-based, and the most recent began in January 2018. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Hanley Falls' water quality report?
As a community water system, Hanley Falls 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 Yellow Medicine County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Granite Falls | Yellow Medicine | 2,843 | Community | Groundwater |
| Canby | Yellow Medicine | 1,769 | Community | Groundwater |
| Clarkfield | Yellow Medicine | 841 | Community | Groundwater |
| Wood Lake | Yellow Medicine | 423 | Community | Groundwater |
| Echo | Yellow Medicine | 269 | Community | Purchased groundwater |
| Porter | Yellow Medicine | 180 | Community | Purchased 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, “Hanley Falls, PWSID MN1870005, Minnesota”, https://aquacensus.com/water-systems/minnesota/hanley-falls-mn1870005 (data as of October 1, 2026).