Public water system · WI7640331
ActiveWi Dnr Firefly Lk Cmpgd 61
At a glance
Wi Dnr Firefly Lk Cmpgd 61 (PWSID WI7640331) is an active transient non-community water system in Vilas County, Wisconsin. It reports serving 250 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
250
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Wi Dnr Firefly Lk Cmpgd 61 compare with other water systems in Vilas County?
By EPA's size categories, Wi Dnr Firefly Lk Cmpgd 61 is a very small system (500 people or fewer). Vilas County has 460 active public water systems. Its population served is about 174% above the county average of 91 people per system, and accounts for 0.6% of the 42,009 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 Wi Dnr Firefly Lk Cmpgd 61 is about 74% above 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 Wi Dnr Firefly Lk Cmpgd 61?
EPA lists Wi Dnr Firefly Lk Cmpgd 61 as owned by a state government. 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. 57 of the 460 active systems in Vilas County (12%) are also owned by a state government.
Does Wi Dnr Firefly Lk Cmpgd 61 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 Wi Dnr Firefly Lk Cmpgd 61. For the latest compliance status, check EPA ECHO for current compliance history.
Wi Dnr Firefly Lk Cmpgd 61: frequently asked questions
Who runs Wi Dnr Firefly Lk Cmpgd 61?
Wi Dnr Firefly Lk Cmpgd 61 (PWSID WI7640331) is a transient non-community water system owned by a state government. It is regulated by the WI state drinking water program.
How many people does Wi Dnr Firefly Lk Cmpgd 61 serve?
Wi Dnr Firefly Lk Cmpgd 61 reports serving 250 people through 1 service connection in Vilas County, Wisconsin.
Where does Wi Dnr Firefly Lk Cmpgd 61 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 Wi Dnr Firefly Lk Cmpgd 61 have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Wi Dnr Firefly Lk Cmpgd 61'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 Wi Dnr Firefly Lk Cmpgd 61's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Wi Dnr Firefly Lk Cmpgd 61 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 Vilas County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Eagle River Waterworks | Vilas | 1,530 | Community | Groundwater |
| Arbor Vitae Woodruff El Sch | Vilas | 575 | Non-transient non-community | Groundwater |
| Phelps Sanitary District | Vilas | 550 | Community | Groundwater |
| Wi Dnr Crystal Lk Shower | Vilas | 540 | Transient non-community | Groundwater |
| Land O Lakes Sanitary Dist | Vilas | 450 | Community | Groundwater |
| Camp Ramah Office | Vilas | 400 | 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, “Wi Dnr Firefly Lk Cmpgd 61, PWSID WI7640331, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/wi-dnr-firefly-lk-cmpgd-61-wi7640331 (data as of October 1, 2026).