Public water system · WI8040285
ActiveBarnes Trading Post
At a glance
Barnes Trading Post (PWSID WI8040285) is an active transient non-community water system in Bayfield County, Wisconsin. It reports serving 25 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in October 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Barnes Trading Post compare with other water systems in Bayfield County?
By EPA's size categories, Barnes Trading Post is a very small system (500 people or fewer). Bayfield County has 194 active public water systems. Its population served is about half of the county average of 55 people per system, and accounts for 0.2% of the 10,732 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 Barnes Trading Post 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 Barnes Trading Post?
EPA lists Barnes Trading Post 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. 153 of the 194 active systems in Bayfield County (79%) are also privately owned.
Does Barnes Trading Post have drinking water violations?
EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in October 2014. The violations listed here began between January 1994 and October 2014. By type: 4 monitoring and reporting, 3 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 8 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 |
|---|---|---|---|---|
| 2014-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2013-04-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2013-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2012-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2012-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1998-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1994-01-17 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 8 violations in EPA's records, newest first.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.
Barnes Trading Post: frequently asked questions
Who runs Barnes Trading Post?
Barnes Trading Post (PWSID WI8040285) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Barnes Trading Post serve?
Barnes Trading Post reports serving 25 people through 1 service connection in Bayfield County, Wisconsin.
Where does Barnes Trading Post 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 Barnes Trading Post have any drinking water violations?
EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in October 2014. 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 Barnes Trading Post'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 8 violations for this system; 3 are health-based, and the most recent began in October 2014. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Barnes Trading Post's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Barnes Trading Post 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 Bayfield County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Washburn Waterworks | Bayfield | 2,280 | Community | Groundwater |
| Iron River Sanitary District | Bayfield | 600 | Community | Groundwater |
| Drummond Sanitary District | Bayfield | 500 | Community | Groundwater |
| Bayfield Waterworks | Bayfield | 488 | Community | Groundwater |
| Port Wing Sanitary District | Bayfield | 400 | Community | Groundwater |
| Mount Ashwabay | Bayfield | 220 | 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, “Barnes Trading Post, PWSID WI8040285, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/barnes-trading-post-wi8040285 (data as of October 1, 2026).