Public water system · WI6420844
ActiveCotter Pin, LLC
At a glance
Cotter Pin, LLC (PWSID WI6420844) is an active transient non-community water system in Monroe County, Wisconsin. It reports serving 28 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
28
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Cotter Pin, LLC compare with other water systems in Monroe County?
By EPA's size categories, Cotter Pin, LLC is a very small system (500 people or fewer). Monroe County has 102 active public water systems. Its population served is well below the county average of 385 people per system, and accounts for less than 0.1% of the 39,274 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Cotter Pin, LLC is well 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. Wisconsin has 9,112 active transient non-community water systems, 82% of the state's 11,056 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 10,978 Wisconsin systems (99%) list groundwater as their primary source.
Who owns and regulates Cotter Pin, LLC?
EPA lists Cotter Pin, LLC as privately owned. The WI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 67 of the 102 active systems in Monroe County (66%) are also privately owned.
Does Cotter Pin, LLC 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 Cotter Pin, LLC. For the latest compliance status, check EPA ECHO for current compliance history.
Cotter Pin, LLC: frequently asked questions
Who runs Cotter Pin, LLC?
Cotter Pin, LLC (PWSID WI6420844) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Cotter Pin, LLC serve?
Cotter Pin, LLC reports serving 28 people through 1 service connection in Monroe County, Wisconsin.
Where does Cotter Pin, LLC 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 Cotter Pin, LLC have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Cotter Pin, LLC'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 EPA ECHO, or the WI state drinking water program.
Where can I find Cotter Pin, LLC's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Cotter Pin, LLC 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 Monroe County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Sparta Waterworks | Monroe | 10,025 | Community | Groundwater |
| Fort Mccoy North Post | Monroe | 10,000 | Community | Groundwater |
| Tomah Waterworks | Monroe | 9,192 | Community | Groundwater |
| Cashton Waterworks | Monroe | 1,120 | Community | Groundwater |
| Brookwood High School | Monroe | 700 | Non-transient non-community | Groundwater |
| Norwalk Waterworks | Monroe | 653 | 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, “Cotter Pin, LLC, PWSID WI6420844, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/cotter-pin-llc-wi6420844 (data as of October 1, 2026).