Public water system · WI8660421
ActiveU S N P St Croix Nsr Earl Park
At a glance
U S N P St Croix Nsr Earl Park (PWSID WI8660421) is an active transient non-community water system in Washburn County, Wisconsin. It reports serving 25 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's Safe Drinking Water Act records list no violations for this system.
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 U S N P St Croix Nsr Earl Park compare with other water systems in Washburn County?
By EPA's size categories, U S N P St Croix Nsr Earl Park is a very small system (500 people or fewer). Washburn County has 128 active public water systems. Its population served is about 67% below the county average of 75 people per system, and accounts for 0.3% of the 9,565 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 U S N P St Croix Nsr Earl Park 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 U S N P St Croix Nsr Earl Park?
EPA lists U S N P St Croix Nsr Earl Park as owned by the federal 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. 4 of the 128 active systems in Washburn County (3.1%) are also owned by the federal government.
Does U S N P St Croix Nsr Earl Park 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 U S N P St Croix Nsr Earl Park. For the latest compliance status, check EPA ECHO for current compliance history.
U S N P St Croix Nsr Earl Park: frequently asked questions
Who runs U S N P St Croix Nsr Earl Park?
U S N P St Croix Nsr Earl Park (PWSID WI8660421) is a transient non-community water system owned by the federal government. It is regulated by the WI state drinking water program.
How many people does U S N P St Croix Nsr Earl Park serve?
U S N P St Croix Nsr Earl Park reports serving 25 people through 1 service connection in Washburn County, Wisconsin.
Where does U S N P St Croix Nsr Earl Park 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 U S N P St Croix Nsr Earl Park have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is U S N P St Croix Nsr Earl Park'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 U S N P St Croix Nsr Earl Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. U S N P St Croix Nsr Earl Park 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 Washburn County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Spooner Waterworks | Washburn | 2,653 | Community | Groundwater |
| Shell Lake Waterworks | Washburn | 950 | Community | Groundwater |
| Minong Waterworks | Washburn | 561 | Community | Groundwater |
| Birchwood Waterworks | Washburn | 442 | Community | Groundwater |
| Northwood School | Washburn | 350 | Non-transient non-community | Groundwater |
| Birch Trail Camp for Girls Main Well | Washburn | 300 | 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, “U S N P St Croix Nsr Earl Park, PWSID WI8660421, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/u-s-n-p-st-croix-nsr-earl-park-wi8660421 (data as of October 1, 2026).