Public water system · WI8020248
ActiveRock House the
At a glance
Rock House the (PWSID WI8020248) is an active transient non-community water system in Ashland County, Wisconsin. It reports serving 25 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in June 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Rock House the compare with other water systems in Ashland County?
By EPA's size categories, Rock House the is a very small system (500 people or fewer). Ashland County has 82 active public water systems. Its population served is well below the county average of 151 people per system, and accounts for 0.2% of the 12,416 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 Rock House the 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 Rock House the?
EPA lists Rock House the 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. 56 of the 82 active systems in Ashland County (68%) are also privately owned.
Does Rock House the have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in June 2017. By type: 1 monitoring. The contaminant or rule involved is Revised Total Coliform Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2017-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
The one violation in EPA's records.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.
Rock House the: frequently asked questions
Who runs Rock House the?
Rock House the (PWSID WI8020248) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Rock House the serve?
Rock House the reports serving 25 people through 1 service connection in Ashland County, Wisconsin.
Where does Rock House the 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 Rock House the have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in June 2017. 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 Rock House the'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 one violation for this system; it is not health-based, and the most recent began in June 2017. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Rock House the's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Rock House the 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 Ashland County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Ashland Water Utility | Ashland | 8,000 | Community | Surface water |
| Glidden Sanitary District | Ashland | 750 | Community | Groundwater |
| Mellen Water Utility | Ashland | 731 | Community | Groundwater |
| Butternut Waterworks | Ashland | 283 | Community | Groundwater |
| Marengo Valley School | Ashland | 220 | Non-transient non-community | Groundwater |
| Hartzell Subdivision - Abbey Lane | Ashland | 115 | 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, “Rock House the, PWSID WI8020248, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/rock-house-the-wi8020248 (data as of October 1, 2026).