Public water system · WI8160188
ActiveBackyard on Amnicon Lake
At a glance
Backyard on Amnicon Lake (PWSID WI8160188) is an active transient non-community water system in Douglas 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 7 violations for this system; 2 are health-based, and the most recent began in May 2019.
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 Backyard on Amnicon Lake compare with other water systems in Douglas County?
By EPA's size categories, Backyard on Amnicon Lake is a very small system (500 people or fewer). Douglas County has 188 active public water systems. Its population served is well below the county average of 184 people per system, and accounts for less than 0.1% of the 34,606 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 Backyard on Amnicon Lake 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 Backyard on Amnicon Lake?
EPA lists Backyard on Amnicon Lake 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. 150 of the 188 active systems in Douglas County (80%) are also privately owned.
Does Backyard on Amnicon Lake have drinking water violations?
EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in May 2019. The violations listed here began between January 1995 and May 2019. By type: 3 monitoring and reporting, 2 contaminant level above the legal limit, 1 public notice, recordkeeping or other and 1 reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 7 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 |
|---|---|---|---|---|
| 2019-05-12 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-05-12 | ReportingReport Startup Procedures Cert Form (RTCR) · code 4C | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2009-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2006-08-01 | 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, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
All 7 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.
Backyard on Amnicon Lake: frequently asked questions
Who runs Backyard on Amnicon Lake?
Backyard on Amnicon Lake (PWSID WI8160188) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Backyard on Amnicon Lake serve?
Backyard on Amnicon Lake reports serving 25 people through 1 service connection in Douglas County, Wisconsin.
Where does Backyard on Amnicon Lake 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 Backyard on Amnicon Lake have any drinking water violations?
EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in May 2019. 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 Backyard on Amnicon Lake'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 7 violations for this system; 2 are health-based, and the most recent began in May 2019. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Backyard on Amnicon Lake's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Backyard on Amnicon Lake 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 Douglas County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Superior Water Light & Power Company | Douglas | 26,084 | Community | Surface water |
| Northwestern Elementary and Middle School | Douglas | 890 | Non-transient non-community | Groundwater |
| Northwestern High School | Douglas | 448 | Non-transient non-community | Groundwater |
| Solon Springs School | Douglas | 375 | Non-transient non-community | Groundwater |
| Four Corners Elementary School | Douglas | 300 | Non-transient non-community | Groundwater |
| Parkland Town Hall | Douglas | 230 | 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, “Backyard on Amnicon Lake, PWSID WI8160188, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/backyard-on-amnicon-lake-wi8160188 (data as of October 1, 2026).