Public water system · WI8580697
ActiveSunrise Bay Upper
At a glance
Sunrise Bay Upper (PWSID WI8580697) is an active transient non-community water system in Sawyer 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 2 violations for this system; none is health-based, and the most recent began in April 2008.
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 Sunrise Bay Upper compare with other water systems in Sawyer County?
By EPA's size categories, Sunrise Bay Upper is a very small system (500 people or fewer). Sawyer County has 191 active public water systems. Its population served is about 64% below the county average of 70 people per system, and accounts for 0.2% of the 13,417 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 Sunrise Bay Upper 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 Sunrise Bay Upper?
EPA lists Sunrise Bay Upper 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. 175 of the 191 active systems in Sawyer County (92%) are also privately owned.
Does Sunrise Bay Upper have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in April 2008. The violations listed here began between April 2008 and April 2008. By type: 2 monitoring and reporting. The contaminants or rules involved are Total coliform bacteria (TCR) and Nitrate. EPA lists 2 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 |
|---|---|---|---|---|
| 2008-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 2 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.
Sunrise Bay Upper: frequently asked questions
Who runs Sunrise Bay Upper?
Sunrise Bay Upper (PWSID WI8580697) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Sunrise Bay Upper serve?
Sunrise Bay Upper reports serving 25 people through 1 service connection in Sawyer County, Wisconsin.
Where does Sunrise Bay Upper 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 Sunrise Bay Upper have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in April 2008. 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 Sunrise Bay Upper'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 2 violations for this system; none is health-based, and the most recent began in April 2008. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Sunrise Bay Upper's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Sunrise Bay Upper 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 Sawyer County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Hayward Water Utility | Sawyer | 2,552 | Community | Groundwater |
| Winter Waterworks | Sawyer | 344 | Community | Groundwater |
| Grand Pines Motel | Sawyer | 300 | Transient non-community | Groundwater |
| Nelson Lake Lodge Office | Sawyer | 300 | Transient non-community | Groundwater |
| Big Bear Lodge | Sawyer | 250 | Transient non-community | Groundwater |
| Dock the | Sawyer | 250 | 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, “Sunrise Bay Upper, PWSID WI8580697, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/sunrise-bay-upper-wi8580697 (data as of October 1, 2026).