Public water system · WI4151198
ActiveSouthern Door Sch Dist
At a glance
Southern Door Sch Dist (PWSID WI4151198) is an active non-transient non-community water system in Door County, Wisconsin. It reports serving 1,350 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 4 violations for this system; none is health-based, and the most recent began in January 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,350
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Southern Door Sch Dist compare with other water systems in Door County?
By EPA's size categories, Southern Door Sch Dist is a small system (501 to 3,300 people). Door County has 451 active public water systems, and Southern Door Sch Dist is the 2nd-largest of them by population served. Its population served is about 18 times the county average of 77 people per system, and accounts for 3.9% 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 non-transient non-community water system reports serving 430 people, so Southern Door Sch Dist is about 3.1 times that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Wisconsin has 891 active non-transient non-community water systems, 8.1% 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 Southern Door Sch Dist?
EPA lists Southern Door Sch Dist 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 Southern Door Sch Dist have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2013. The violations listed here began between November 1991 and January 2013. By type: 4 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 2 as resolved and 2 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2013-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1997-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1991-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1991-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 4 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.
Southern Door Sch Dist: frequently asked questions
Who runs Southern Door Sch Dist?
Southern Door Sch Dist (PWSID WI4151198) is a non-transient non-community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Southern Door Sch Dist serve?
Southern Door Sch Dist reports serving 1,350 people through 1 service connection in Door County, Wisconsin.
Where does Southern Door Sch Dist 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 Southern Door Sch Dist have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2013. 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 Southern Door Sch Dist'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 4 violations for this system; none is health-based, and the most recent began in January 2013. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Southern Door Sch Dist's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Southern Door Sch Dist is a non-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 |
| 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 |
| Culvers Town & Country C Store | Door | 265 | Transient non-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, “Southern Door Sch Dist, PWSID WI4151198, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/southern-door-sch-dist-wi4151198 (data as of October 1, 2026).