Public water system · MN5500037
ActiveThe Old Mill, Inc..
At a glance
The Old Mill, Inc.. (PWSID MN5500037) is an active transient non-community water system in Mower County, Minnesota. It reports serving 115 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is health-based, and the most recent began in February 2005.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
115
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does The Old Mill, Inc.. compare with other water systems in Mower County?
By EPA's size categories, The Old Mill, Inc.. is a very small system (500 people or fewer). Mower County has 54 active public water systems. Its population served is well below the county average of 679 people per system, and accounts for 0.3% of the 36,656 people reported by systems filed under the county. Across Minnesota, the 6,465 active systems average 820 people each. Nationally, the average active transient non-community water system reports serving 144 people, so The Old Mill, Inc.. is about 20% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Minnesota has 5,008 active transient non-community water systems, 77% 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 The Old Mill, Inc..?
EPA lists The Old Mill, Inc.. as privately owned. 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. 37 of the 54 active systems in Mower County (69%) are also privately owned.
Does The Old Mill, Inc.. have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in February 2005. By type: 1 contaminant level above the legal limit. The contaminant or rule involved is Total coliform bacteria (TCR). 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 |
|---|---|---|---|---|
| 2005-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
The Old Mill, Inc..: frequently asked questions
Who runs The Old Mill, Inc..?
The Old Mill, Inc.. (PWSID MN5500037) is a transient non-community water system privately owned. It is regulated by the MN state drinking water program.
How many people does The Old Mill, Inc.. serve?
The Old Mill, Inc.. reports serving 115 people through 2 service connections in Mower County, Minnesota.
Where does The Old Mill, Inc.. 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 The Old Mill, Inc.. have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in February 2005. 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 The Old Mill, Inc..'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 health-based, and the most recent began in February 2005. For current results, consult EPA ECHO, or the MN state drinking water program.
Where can I find The Old Mill, Inc..'s water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. The Old Mill, Inc.. is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Mower County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Austin Utilities | Mower | 26,174 | Community | Groundwater |
| Grand Meadow | Mower | 1,154 | Community | Groundwater |
| High Forest Rest Area Mndot | Mower | 1,001 | Transient non-community | Groundwater |
| Leroy | Mower | 959 | Community | Groundwater |
| Beaver Trails Jellystone | Mower | 750 | Transient non-community | Groundwater |
| Brownsdale | Mower | 682 | 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, “The Old Mill, Inc.., PWSID MN5500037, Minnesota”, https://aquacensus.com/water-systems/minnesota/the-old-mill-inc-mn5500037 (data as of October 1, 2026).