Public water system · WI7350645
ActiveUw Stevens Pt Treehaven Field Station
At a glance
Uw Stevens Pt Treehaven Field Station (PWSID WI7350645) is an active transient non-community water system in Lincoln County, Wisconsin. It reports serving 133 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 1994.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
133
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Uw Stevens Pt Treehaven Field Station compare with other water systems in Lincoln County?
By EPA's size categories, Uw Stevens Pt Treehaven Field Station is a very small system (500 people or fewer). Lincoln County has 97 active public water systems. Its population served is about 32% below the county average of 196 people per system, and accounts for 0.7% of the 19,050 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 Uw Stevens Pt Treehaven Field Station is roughly in line with 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 Uw Stevens Pt Treehaven Field Station?
EPA lists Uw Stevens Pt Treehaven Field Station 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. 5 of the 97 active systems in Lincoln County (5.2%) are also owned by a state government.
Does Uw Stevens Pt Treehaven Field Station have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 1994. The violations listed here began between January 1994 and January 1994. By type: 2 monitoring and reporting. The contaminant or rule involved most often is Nitrate (2 of them). 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 |
|---|---|---|---|---|
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1994-01-01 | 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.
Uw Stevens Pt Treehaven Field Station: frequently asked questions
Who runs Uw Stevens Pt Treehaven Field Station?
Uw Stevens Pt Treehaven Field Station (PWSID WI7350645) 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 Uw Stevens Pt Treehaven Field Station serve?
Uw Stevens Pt Treehaven Field Station reports serving 133 people through 1 service connection in Lincoln County, Wisconsin.
Where does Uw Stevens Pt Treehaven Field Station 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 Uw Stevens Pt Treehaven Field Station have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 1994. 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 Uw Stevens Pt Treehaven Field Station'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 January 1994. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Uw Stevens Pt Treehaven Field Station's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Uw Stevens Pt Treehaven Field Station 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 Lincoln County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Merrill Waterworks | Lincoln | 9,661 | Community | Groundwater |
| Tomahawk Waterworks | Lincoln | 3,180 | Community | Groundwater |
| Hwy 51 Truckstop Site 4488 | Lincoln | 636 | Non-transient non-community | Groundwater |
| Olivia Telschow LLC | Lincoln | 612 | Transient non-community | Groundwater |
| Wi Dnr Council Grnds Entrance Office | Lincoln | 525 | Transient non-community | Groundwater |
| Lincoln Hills School | Lincoln | 316 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Uw Stevens Pt Treehaven Field Station, PWSID WI7350645, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/uw-stevens-pt-treehaven-field-station-wi7350645 (data as of October 1, 2026).