Public water system · WI4150248
ActiveRidges Sanctuary Range Light
At a glance
Ridges Sanctuary Range Light (PWSID WI4150248) is an active transient non-community water system in Door County, Wisconsin. It reports serving 30 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
30
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Ridges Sanctuary Range Light compare with other water systems in Door County?
By EPA's size categories, Ridges Sanctuary Range Light is a very small system (500 people or fewer). Door County has 451 active public water systems. Its population served is about 61% 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 Ridges Sanctuary Range Light 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 Ridges Sanctuary Range Light?
EPA lists Ridges Sanctuary Range Light as privately owned. 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. 377 of the 451 active systems in Door County (84%) are also privately owned.
Does Ridges Sanctuary Range Light have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2025. The violations listed here began between January 2017 and October 2025. By type: 8 monitoring and 4 public notice, recordkeeping or other. The contaminant or rule involved most often is Revised Total Coliform Rule (8 of them). EPA lists 11 as resolved and 1 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 |
|---|---|---|---|---|
| 2025-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2024-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-10-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-01-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-07-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-07-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2021-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
The 12 most recent 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.
Ridges Sanctuary Range Light: frequently asked questions
Who runs Ridges Sanctuary Range Light?
Ridges Sanctuary Range Light (PWSID WI4150248) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Ridges Sanctuary Range Light serve?
Ridges Sanctuary Range Light reports serving 30 people through 2 service connections in Door County, Wisconsin.
Where does Ridges Sanctuary Range Light 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 Ridges Sanctuary Range Light have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2025. 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 Ridges Sanctuary Range Light'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2025. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Ridges Sanctuary Range Light's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Ridges Sanctuary Range Light 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, “Ridges Sanctuary Range Light, PWSID WI4150248, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/ridges-sanctuary-range-light-wi4150248 (data as of October 1, 2026).