Public water system · WI4430187
ActiveU S F S Boulder Lk Cmpgd K26
At a glance
U S F S Boulder Lk Cmpgd K26 (PWSID WI4430187) is an active transient non-community water system in Oconto County, Wisconsin. It reports serving 25 people through 4 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list 3 violations for this system; none is health-based, and the most recent began in November 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
4
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does U S F S Boulder Lk Cmpgd K26 compare with other water systems in Oconto County?
By EPA's size categories, U S F S Boulder Lk Cmpgd K26 is a very small system (500 people or fewer). Oconto County has 202 active public water systems. Its population served is well below the county average of 101 people per system, and accounts for 0.1% of the 20,322 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 F S Boulder Lk Cmpgd K26 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 F S Boulder Lk Cmpgd K26?
EPA lists U S F S Boulder Lk Cmpgd K26 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. 12 of the 202 active systems in Oconto County (5.9%) are also owned by the federal government.
Does U S F S Boulder Lk Cmpgd K26 have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in November 2021. The violations listed here began between July 2019 and November 2021. By type: 1 public notice, recordkeeping or other, 1 monitoring and 1 monitoring and reporting. The contaminants or rules involved are Public Notice, Revised Total Coliform Rule and E. coli. EPA lists 2 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2021-11-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2021-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-07-06 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
All 3 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.
U S F S Boulder Lk Cmpgd K26: frequently asked questions
Who runs U S F S Boulder Lk Cmpgd K26?
U S F S Boulder Lk Cmpgd K26 (PWSID WI4430187) 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 F S Boulder Lk Cmpgd K26 serve?
U S F S Boulder Lk Cmpgd K26 reports serving 25 people through 4 service connections in Oconto County, Wisconsin.
Where does U S F S Boulder Lk Cmpgd K26 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 F S Boulder Lk Cmpgd K26 have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in November 2021. 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 U S F S Boulder Lk Cmpgd K26'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 3 violations for this system; none is health-based, and the most recent began in November 2021. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find U S F S Boulder Lk Cmpgd K26's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. U S F S Boulder Lk Cmpgd K26 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 Oconto County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Oconto Waterworks | Oconto | 4,583 | Community | Groundwater |
| Oconto Falls Waterworks | Oconto | 2,892 | Community | Groundwater |
| Gillett Waterworks | Oconto | 1,264 | Community | Groundwater |
| Lena Waterworks | Oconto | 585 | Community | Groundwater |
| Sunnyside Elementary Sch | Oconto | 575 | Non-transient non-community | Groundwater |
| Suring Waterworks | Oconto | 517 | 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 F S Boulder Lk Cmpgd K26, PWSID WI4430187, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/u-s-f-s-boulder-lk-cmpgd-k26-wi4430187 (data as of October 1, 2026).