Public water system · WI4080440
ActiveDvo Inc.
At a glance
Dvo Inc. (PWSID WI4080440) is an active non-transient non-community water system in Calumet County, Wisconsin. It reports serving 33 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 2012.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
33
Service connections
2
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Dvo Inc. compare with other water systems in Calumet County?
By EPA's size categories, Dvo Inc. is a very small system (500 people or fewer). Calumet County has 50 active public water systems. Its population served is well below the county average of 485 people per system, and accounts for 0.1% of the 24,253 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 Dvo Inc. is well below 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 Dvo Inc.?
EPA lists Dvo Inc. 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. 37 of the 50 active systems in Calumet County (74%) are also privately owned.
Does Dvo Inc. 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 2012. The violations listed here began between October 2012 and October 2012. By type: 12 monitoring and reporting. The contaminants or rules involved are 1,2-Dichloroethane, trans-1,2-Dichloroethylene, Vinyl chloride and p-Dichlorobenzene. EPA lists 12 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 |
|---|---|---|---|---|
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloroethanecode 2980 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlorobenzenecode 2989 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | 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.
Dvo Inc.: frequently asked questions
Who runs Dvo Inc.?
Dvo Inc. (PWSID WI4080440) is a non-transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Dvo Inc. serve?
Dvo Inc. reports serving 33 people through 2 service connections in Calumet County, Wisconsin.
Where does Dvo Inc. 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 Dvo Inc. 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 2012. 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 Dvo Inc.'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 2012. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Dvo Inc.'s water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Dvo Inc. 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 Calumet County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Harrison Utilities - Fka Waverly Sd | Calumet | 5,500 | Community | Purchased surface water |
| Chilton Waterworks | Calumet | 4,191 | Community | Groundwater |
| Brillion Waterworks | Calumet | 3,262 | Community | Groundwater |
| Sherwood Waterworks | Calumet | 3,114 | Community | Purchased surface water |
| New Holstein Waterworks | Calumet | 3,012 | Community | Groundwater |
| Hilbert Waterworks | Calumet | 1,176 | 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, “Dvo Inc., PWSID WI4080440, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/dvo-inc-wi4080440 (data as of October 1, 2026).