Public water system · MN1670003
ActiveHills
At a glance
Hills (PWSID MN1670003) is an active community water system in Rock County, Minnesota. It reports serving 685 people through 285 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
685
Service connections
285
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Hills compare with other water systems in Rock County?
By EPA's size categories, Hills is a small system (501 to 3,300 people). Rock County has 8 active public water systems, and Hills is the 3rd-largest of them by population served. Its population served is about 42% below the county average of 1,187 people per system, and accounts for 7.2% of the 9,495 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 Hills 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. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 89 Minnesota systems (1.4%) list purchased groundwater as their primary source.
Who owns and regulates Hills?
EPA lists Hills 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. 8 of the 8 active systems in Rock County (100%) are also owned by a local government.
Does Hills have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2016. By type: 1 monitoring and reporting. The contaminant or rule involved is Lead and Copper Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2016-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
The one violation in EPA's records.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.
Hills: frequently asked questions
Who runs Hills?
Hills (PWSID MN1670003) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Hills serve?
Hills reports serving 685 people through 285 service connections in Rock County, Minnesota.
Where does Hills get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Hills have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2016. 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 Hills' 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 one violation for this system; it is not health-based, and the most recent began in January 2016. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Hills' water quality report?
As a community water system, Hills 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 Rock County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Luverne | Rock | 4,946 | Community | Groundwater |
| Rock County Rural Water System | Rock | 2,919 | Community | Purchased surface water |
| Beaver Creek | Rock | 297 | Community | Purchased surface water |
| Magnolia | Rock | 214 | Community | Purchased surface water |
| Hardwick | Rock | 198 | Community | Purchased groundwater |
| Steen | Rock | 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, “Hills, PWSID MN1670003, Minnesota”, https://aquacensus.com/water-systems/minnesota/hills-mn1670003 (data as of October 1, 2026).