Public water system · WI4150239
ActiveEphraim Anderson Dock
At a glance
Ephraim Anderson Dock (PWSID WI4150239) is an active transient non-community water system in Door County, Wisconsin. It reports serving 27 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
27
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Ephraim Anderson Dock compare with other water systems in Door County?
By EPA's size categories, Ephraim Anderson Dock is a very small system (500 people or fewer). Door County has 451 active public water systems. Its population served is about 65% below the county average of 77 people per system, and accounts for less than 0.1% of the 34,679 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 Ephraim Anderson Dock 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 Ephraim Anderson Dock?
EPA lists Ephraim Anderson Dock as owned by a local 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. 45 of the 451 active systems in Door County (10%) are also owned by a local government.
Does Ephraim Anderson Dock have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2020. The violations listed here began between October 2006 and October 2020. By type: 1 monitoring and 1 monitoring and reporting. The contaminants or rules involved are Revised Total Coliform Rule and Total coliform bacteria (TCR). 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 |
|---|---|---|---|---|
| 2020-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2006-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | 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.
Ephraim Anderson Dock: frequently asked questions
Who runs Ephraim Anderson Dock?
Ephraim Anderson Dock (PWSID WI4150239) is a transient non-community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Ephraim Anderson Dock serve?
Ephraim Anderson Dock reports serving 27 people through 1 service connection in Door County, Wisconsin.
Where does Ephraim Anderson Dock 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 Ephraim Anderson Dock have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2020. 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 Ephraim Anderson Dock'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 October 2020. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Ephraim Anderson Dock's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Ephraim Anderson Dock 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 Door County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Sturgeon Bay Waterworks | Door | 9,700 | Community | Groundwater |
| Southern Door Sch Dist | Door | 1,350 | Non-transient non-community | Groundwater |
| Sister Bay Waterworks | Door | 1,000 | Community | Groundwater |
| Sevastopol High Sch | Door | 715 | Non-transient non-community | Groundwater |
| Gibraltar High School | Door | 695 | Non-transient non-community | Groundwater |
| Loft | Door | 308 | 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, “Ephraim Anderson Dock, PWSID WI4150239, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/ephraim-anderson-dock-wi4150239 (data as of October 1, 2026).