Public water system · OR4195004
ActiveHart Mountain Store
At a glance
Hart Mountain Store (PWSID OR4195004) is an active transient non-community water system in Lake County, Oregon. It reports serving 35 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 2005.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
35
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Hart Mountain Store compare with other water systems in Lake County?
By EPA's size categories, Hart Mountain Store is a very small system (500 people or fewer). Lake County has 19 active public water systems. Its population served is well below the county average of 250 people per system, and accounts for 0.7% of the 4,753 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 Hart Mountain Store 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. 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 Hart Mountain Store?
EPA lists Hart Mountain Store 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. 9 of the 19 active systems in Lake County (47%) are also privately owned.
Does Hart Mountain Store 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 2005. The violations listed here began between January 2002 and October 2005. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (11 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 |
|---|---|---|---|---|
| 2005-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2003-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-01-01 | 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.
Hart Mountain Store: frequently asked questions
Who runs Hart Mountain Store?
Hart Mountain Store (PWSID OR4195004) is a transient non-community water system privately owned. It is regulated by the OR state drinking water program.
How many people does Hart Mountain Store serve?
Hart Mountain Store reports serving 35 people through 2 service connections in Lake County, Oregon.
Where does Hart Mountain Store 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 Hart Mountain Store 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 2005. 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 Hart Mountain Store'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 2005. For current results, consult EPA ECHO, or the OR state drinking water program.
Where can I find Hart Mountain Store's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Hart Mountain Store 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 Lake County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lakeview, City of | Lake | 2,476 | Community | Groundwater |
| Christmas Valley Domestic Ws | Lake | 950 | Community | Groundwater |
| North Lake School Sd 14 | Lake | 260 | Non-transient non-community | Groundwater |
| Paisley, City of | Lake | 245 | Community | Groundwater |
| Oprd Goose Lake Recreation | Lake | 150 | Transient non-community | Groundwater |
| Westwind Mobile Home Park | Lake | 104 | Community | Surface water |
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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, “Hart Mountain Store, PWSID OR4195004, Oregon”, https://aquacensus.com/water-systems/oregon/hart-mountain-store-or4195004 (data as of October 1, 2026).