Public water system · MN1420006
ActiveMarshall
At a glance
Marshall (PWSID MN1420006) is an active community water system in Lyon County, Minnesota. It reports serving 13,890 people through 4,880 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
13,890
Service connections
4,880
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Marshall compare with other water systems in Lyon County?
By EPA's size categories, Marshall is a large system (10,001 to 100,000 people). Lyon County has 16 active public water systems, and Marshall is the largest of them by population served. Its population served is about 11 times the county average of 1,315 people per system, and accounts for 66% of the 21,039 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 Marshall is about twice 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 Marshall?
EPA lists Marshall 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. 13 of the 16 active systems in Lyon County (81%) are also owned by a local government.
Does Marshall have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Marshall. For the latest compliance status, check EPA ECHO for current compliance history.
Marshall: frequently asked questions
Who runs Marshall?
Marshall (PWSID MN1420006) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Marshall serve?
Marshall reports serving 13,890 people through 4,880 service connections in Lyon County, Minnesota.
Where does Marshall 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 Marshall have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Marshall'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 Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Marshall's water quality report?
As a community water system, Marshall 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 Lyon County
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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, “Marshall, PWSID MN1420006, Minnesota”, https://aquacensus.com/water-systems/minnesota/marshall-mn1420006 (data as of October 1, 2026).