Public water system · WI6100348
ActiveCals Rock Dam Resort
At a glance
Cals Rock Dam Resort (PWSID WI6100348) is an active transient non-community water system in Clark County, Wisconsin. It reports serving 40 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in August 1996.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
40
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Cals Rock Dam Resort compare with other water systems in Clark County?
By EPA's size categories, Cals Rock Dam Resort is a very small system (500 people or fewer). Clark County has 94 active public water systems. Its population served is well below the county average of 149 people per system, and accounts for 0.3% of the 14,002 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 Cals Rock Dam Resort 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 Cals Rock Dam Resort?
EPA lists Cals Rock Dam Resort 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. 62 of the 94 active systems in Clark County (66%) are also privately owned.
Does Cals Rock Dam Resort have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in August 1996. The violations listed here began between January 1996 and August 1996. By type: 2 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). 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 |
|---|---|---|---|---|
| 1996-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1996-01-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | 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.
Cals Rock Dam Resort: frequently asked questions
Who runs Cals Rock Dam Resort?
Cals Rock Dam Resort (PWSID WI6100348) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Cals Rock Dam Resort serve?
Cals Rock Dam Resort reports serving 40 people through 1 service connection in Clark County, Wisconsin.
Where does Cals Rock Dam Resort 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 Cals Rock Dam Resort have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in August 1996. 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 Cals Rock Dam Resort'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 August 1996. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Cals Rock Dam Resort's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Cals Rock Dam Resort 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 Clark County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Neillsville Waterworks | Clark | 2,384 | Community | Groundwater |
| Thorp Waterworks | Clark | 1,636 | Community | Groundwater |
| Loyal Waterworks | Clark | 1,308 | Community | Groundwater |
| Greenwood Waterworks | Clark | 1,079 | Community | Groundwater |
| Owen Waterworks | Clark | 936 | Community | Groundwater |
| Dorchester Waterworks | Clark | 834 | 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, “Cals Rock Dam Resort, PWSID WI6100348, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/cals-rock-dam-resort-wi6100348 (data as of October 1, 2026).