Public water system · WI6170445
ActiveShady Oaks MHP
At a glance
Shady Oaks MHP (PWSID WI6170445) is an active community water system in Dunn County, Wisconsin. It reports serving 40 people through 23 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 July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
40
Service connections
23
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Shady Oaks MHP compare with other water systems in Dunn County?
By EPA's size categories, Shady Oaks MHP is a very small system (500 people or fewer). Dunn County has 86 active public water systems. Its population served is well below the county average of 305 people per system, and accounts for 0.2% of the 26,187 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active community water system reports serving 6,703 people, so Shady Oaks MHP is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Wisconsin has 1,053 active community water systems, 9.5% 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 Shady Oaks MHP?
EPA lists Shady Oaks MHP 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. 68 of the 86 active systems in Dunn County (79%) are also privately owned.
Does Shady Oaks MHP have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2025. The violations listed here began between April 2019 and July 2025. By type: 5 public notice, recordkeeping or other, 5 monitoring and reporting, 1 reporting and 1 monitoring. The contaminant or rule involved most often is Public Notice (3 of them). EPA lists 4 as resolved, 4 as addressed and 4 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. Addressed means the violation is not resolved or archived and is covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2021-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-10-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2020-06-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Addressed |
| 2020-01-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Archived |
| 2019-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Addressed |
| 2019-07-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Addressed |
| 2019-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Addressed |
| 2019-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
| 2019-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Archived |
| 2019-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Archived |
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.
Shady Oaks MHP: frequently asked questions
Who runs Shady Oaks MHP?
Shady Oaks MHP (PWSID WI6170445) is a community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Shady Oaks MHP serve?
Shady Oaks MHP reports serving 40 people through 23 service connections in Dunn County, Wisconsin.
Where does Shady Oaks MHP 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 Shady Oaks MHP 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 July 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 Shady Oaks MHP'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 July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Shady Oaks MHP's water quality report?
As a community water system, Shady Oaks MHP must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Dunn County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Menomonie Waterworks | Dunn | 15,950 | Community | Groundwater |
| Colfax Waterworks | Dunn | 1,102 | Community | Groundwater |
| Boyceville Waterworks | Dunn | 1,043 | Community | Groundwater |
| Elk Mound Waterworks | Dunn | 895 | Community | Groundwater |
| Birch Terrace Mobile Home Community | Dunn | 700 | Community | Groundwater |
| Knapp Waterworks | Dunn | 486 | 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, “Shady Oaks MHP, PWSID WI6170445, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/shady-oaks-mhp-wi6170445 (data as of October 1, 2026).