Public water system · MN1850017
ActiveHidden Valley Mobile Home Park
At a glance
Hidden Valley Mobile Home Park (PWSID MN1850017) is an active community water system in Winona County, Minnesota. It reports serving 464 people through 265 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 April 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
464
Service connections
265
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Hidden Valley Mobile Home Park compare with other water systems in Winona County?
By EPA's size categories, Hidden Valley Mobile Home Park is a very small system (500 people or fewer). Winona County has 77 active public water systems. Its population served is about 30% below the county average of 666 people per system, and accounts for 0.9% of the 51,279 people reported by systems filed under the county. Across Minnesota, the 6,465 active systems average 820 people each. Nationally, the average active community water system reports serving 6,703 people, so Hidden Valley Mobile Home Park 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. Minnesota has 987 active community water systems, 15% of the state's 6,465 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,261 Minnesota systems (97%) list groundwater as their primary source.
Who owns and regulates Hidden Valley Mobile Home Park?
EPA lists Hidden Valley Mobile Home Park as privately owned. The MN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 55 of the 77 active systems in Winona County (71%) are also privately owned.
Does Hidden Valley Mobile Home Park have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2025. The violations listed here began between October 2014 and April 2025. By type: 9 monitoring and reporting and 3 monitoring. The contaminant or rule involved most often is Chlorine (5 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 |
|---|---|---|---|---|
| 2025-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Archived |
| 2025-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2024-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2015-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2015-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2015-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2014-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2014-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | 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.
Hidden Valley Mobile Home Park: frequently asked questions
Who runs Hidden Valley Mobile Home Park?
Hidden Valley Mobile Home Park (PWSID MN1850017) is a community water system privately owned. It is regulated by the MN state drinking water program.
How many people does Hidden Valley Mobile Home Park serve?
Hidden Valley Mobile Home Park reports serving 464 people through 265 service connections in Winona County, Minnesota.
Where does Hidden Valley Mobile Home Park 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 Hidden Valley Mobile Home Park 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 April 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 Hidden Valley Mobile Home Park'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 April 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Hidden Valley Mobile Home Park's water quality report?
As a community water system, Hidden Valley Mobile Home Park 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 Winona County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Winona | Winona | 27,782 | Community | Groundwater |
| Goodview | Winona | 4,158 | Community | Groundwater |
| Saint Charles | Winona | 3,825 | Community | Groundwater |
| Kwik Trip No. 497 | Winona | 1,600 | Transient non-community | Groundwater |
| Lewiston | Winona | 1,512 | Community | Groundwater |
| Enterprise Rest Area Mndot | Winona | 1,220 | 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, “Hidden Valley Mobile Home Park, PWSID MN1850017, Minnesota”, https://aquacensus.com/water-systems/minnesota/hidden-valley-mobile-home-park-mn1850017 (data as of October 1, 2026).