Public water system · NV0000907
ActiveLone Tree Mine
At a glance
Lone Tree Mine (PWSID NV0000907) is an active non-transient non-community water system in Humboldt County, Nevada. It reports serving 25 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 3 violations for this system; all are health-based, and the most recent began in July 2007.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
2
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Lone Tree Mine compare with other water systems in Humboldt County?
By EPA's size categories, Lone Tree Mine is a very small system (500 people or fewer). Humboldt County has 27 active public water systems. Its population served is well below the county average of 511 people per system, and accounts for 0.2% of the 13,801 people reported by systems filed under the county. Across Nevada, the 643 active systems average 5,508 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Lone Tree Mine 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. Nevada has 161 active non-transient non-community water systems, 25% of the state's 643 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 557 Nevada systems (87%) list groundwater as their primary source.
Who owns and regulates Lone Tree Mine?
EPA lists Lone Tree Mine as privately owned. The NV state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 17 of the 27 active systems in Humboldt County (63%) are also privately owned.
Does Lone Tree Mine have drinking water violations?
EPA's records list 3 violations for this system; all are health-based, and the most recent began in July 2007. The violations listed here began between July 2000 and July 2007. By type: 3 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 3 as archived. 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 |
|---|---|---|---|---|
| 2007-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2003-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2000-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 3 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.
Lone Tree Mine: frequently asked questions
Who runs Lone Tree Mine?
Lone Tree Mine (PWSID NV0000907) is a non-transient non-community water system privately owned. It is regulated by the NV state drinking water program.
How many people does Lone Tree Mine serve?
Lone Tree Mine reports serving 25 people through 2 service connections in Humboldt County, Nevada.
Where does Lone Tree Mine 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 Lone Tree Mine have any drinking water violations?
EPA's records list 3 violations for this system; all are health-based, and the most recent began in July 2007. 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 Lone Tree Mine'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. EPA's records list 3 violations for this system; all are health-based, and the most recent began in July 2007. For current results, consult EPA ECHO, or the NV state drinking water program.
Where can I find Lone Tree Mine's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lone Tree Mine 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 Humboldt County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Winnemucca City of | Humboldt | 8,518 | Community | Groundwater |
| Gold Country Estates | Humboldt | 1,695 | Community | Groundwater |
| Nevada Gold Mines Twin Creeks | Humboldt | 600 | Non-transient non-community | Groundwater |
| Nevada Gold Mines Turquoise Ridge | Humboldt | 480 | Non-transient non-community | Groundwater |
| Marigold Mine Potable Water System | Humboldt | 450 | Non-transient non-community | Groundwater |
| Ndot Valmy Roadside Park Rp809hu | Humboldt | 367 | 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, “Lone Tree Mine, PWSID NV0000907, Nevada”, https://aquacensus.com/water-systems/nevada/lone-tree-mine-nv0000907 (data as of October 1, 2026).