Public water system · OR4105213
ActiveMt Shadows Home Owners Assoc
At a glance
Mt Shadows Home Owners Assoc (PWSID OR4105213) is an active transient non-community water system in Hood River County, Oregon. It reports serving 50 people through 26 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
50
Service connections
26
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Mt Shadows Home Owners Assoc compare with other water systems in Hood River County?
By EPA's size categories, Mt Shadows Home Owners Assoc is a very small system (500 people or fewer). Hood River County has 22 active public water systems. Its population served is well below the county average of 1,265 people per system, and accounts for 0.2% of the 27,824 people reported by systems filed under the county. Across Oregon, the 2,536 active systems average 1,587 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Mt Shadows Home Owners Assoc is about 65% 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. Oregon has 1,250 active transient non-community water systems, 49% of the state's 2,536 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,175 Oregon systems (86%) list groundwater as their primary source.
Who owns and regulates Mt Shadows Home Owners Assoc?
EPA lists Mt Shadows Home Owners Assoc as privately owned. The OR state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 11 of the 22 active systems in Hood River County (50%) are also privately owned.
Does Mt Shadows Home Owners Assoc 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 January 2005 and July 2025. By type: 8 monitoring and reporting, 3 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). 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 |
|---|---|---|---|---|
| 2025-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2014-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2012-05-24 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2012-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2012-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | 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.
Mt Shadows Home Owners Assoc: frequently asked questions
Who runs Mt Shadows Home Owners Assoc?
Mt Shadows Home Owners Assoc (PWSID OR4105213) is a transient non-community water system privately owned. It is regulated by the OR state drinking water program.
How many people does Mt Shadows Home Owners Assoc serve?
Mt Shadows Home Owners Assoc reports serving 50 people through 26 service connections in Hood River County, Oregon.
Where does Mt Shadows Home Owners Assoc 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 Mt Shadows Home Owners Assoc 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 Mt Shadows Home Owners Assoc'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 EPA ECHO, or the OR state drinking water program.
Where can I find Mt Shadows Home Owners Assoc's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Mt Shadows Home Owners Assoc 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 Hood River County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Hood River, City of | Hood River | 8,577 | Community | Groundwater |
| Ice Fountain Water District | Hood River | 6,000 | Community | Groundwater |
| Crystal Springs Water District | Hood River | 5,973 | Community | Groundwater |
| Mt Hood Meadows Spring | Hood River | 1,400 | Non-transient non-community | Groundwater under influence of surface water |
| Cascade Locks, City of | Hood River | 1,398 | Community | Groundwater |
| Parkdale Water Company Inc. | Hood River | 867 | 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, “Mt Shadows Home Owners Assoc, PWSID OR4105213, Oregon”, https://aquacensus.com/water-systems/oregon/mt-shadows-home-owners-assoc-or4105213 (data as of October 1, 2026).