Public water system · MN1550004
ActiveDover
At a glance
Dover (PWSID MN1550004) is an active community water system in Olmsted County, Minnesota. It reports serving 792 people through 312 service connections. Its primary water source is 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 July 1995.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
792
Service connections
312
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Dover compare with other water systems in Olmsted County?
By EPA's size categories, Dover is a small system (501 to 3,300 people). Olmsted County has 81 active public water systems, and Dover is the 6th-largest of them by population served. Its population served is about 56% below the county average of 1,816 people per system, and accounts for 0.5% of the 147,054 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 Dover 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 Dover?
EPA lists Dover 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 81 active systems in Olmsted County (11%) are also owned by a local government.
Does Dover have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in July 1995. By type: 1 monitoring and reporting. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 as archived. 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 |
|---|---|---|---|---|
| 1995-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
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.
Dover: frequently asked questions
Who runs Dover?
Dover (PWSID MN1550004) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Dover serve?
Dover reports serving 792 people through 312 service connections in Olmsted County, Minnesota.
Where does Dover 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 Dover 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 July 1995. 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 Dover'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 one violation for this system; it is not health-based, and the most recent began in July 1995. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Dover's water quality report?
As a community water system, Dover 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 Olmsted County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Rochester | Olmsted | 123,624 | Community | Groundwater |
| Stewartville | Olmsted | 6,850 | Community | Groundwater |
| Byron | Olmsted | 6,809 | Community | Groundwater |
| Eyota | Olmsted | 2,043 | Community | Groundwater |
| Oronoco | Olmsted | 2,040 | Community | Groundwater |
| Crosswinds Church | Olmsted | 400 | 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, “Dover, PWSID MN1550004, Minnesota”, https://aquacensus.com/water-systems/minnesota/dover-mn1550004 (data as of October 1, 2026).