Public water system · NV0005021
ActiveLahontan Dam State Park Beach 7
At a glance
Lahontan Dam State Park Beach 7 (PWSID NV0005021) is an active transient non-community water system in Lyon County, Nevada. It reports serving 50 people through 9 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 2 violations for this system; all are health-based, and the most recent began in January 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
9
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Lahontan Dam State Park Beach 7 compare with other water systems in Lyon County?
By EPA's size categories, Lahontan Dam State Park Beach 7 is a very small system (500 people or fewer). Lyon County has 30 active public water systems. Its population served is well below the county average of 1,710 people per system, and accounts for less than 0.1% of the 51,309 people reported by systems filed under the county. Across Nevada, the 643 active systems average 5,508 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Lahontan Dam State Park Beach 7 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. Nevada has 258 active transient non-community water systems, 40% 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 Lahontan Dam State Park Beach 7?
EPA lists Lahontan Dam State Park Beach 7 as owned by a state government. 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. 4 of the 30 active systems in Lyon County (13%) are also owned by a state government.
Does Lahontan Dam State Park Beach 7 have drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in January 2017. The violations listed here began between August 2014 and January 2017. By type: 1 required treatment not met and 1 contaminant level above the legal limit. The contaminants or rules involved are Groundwater Rule and Total coliform bacteria (TCR). EPA lists 2 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 |
|---|---|---|---|---|
| 2017-01-17 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2014-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 2 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.
Lahontan Dam State Park Beach 7: frequently asked questions
Who runs Lahontan Dam State Park Beach 7?
Lahontan Dam State Park Beach 7 (PWSID NV0005021) is a transient non-community water system owned by a state government. It is regulated by the NV state drinking water program.
How many people does Lahontan Dam State Park Beach 7 serve?
Lahontan Dam State Park Beach 7 reports serving 50 people through 9 service connections in Lyon County, Nevada.
Where does Lahontan Dam State Park Beach 7 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 Lahontan Dam State Park Beach 7 have any drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in January 2017. 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 Lahontan Dam State Park Beach 7'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 2 violations for this system; all are health-based, and the most recent began in January 2017. For current results, consult EPA ECHO, or the NV state drinking water program.
Where can I find Lahontan Dam State Park Beach 7's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lahontan Dam State Park Beach 7 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 Lyon County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Fernley Public Works | Lyon | 23,064 | Community | Groundwater |
| Dayton Valley Water System | Lyon | 16,000 | Community | Groundwater |
| Yerington City of | Lyon | 5,050 | Community | Groundwater |
| Silver Springs Mutual Water Company | Lyon | 3,070 | Community | Groundwater |
| Stagecoach Gid | Lyon | 1,628 | Community | Groundwater |
| Smith Valley Baptist Church | Lyon | 500 | 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, “Lahontan Dam State Park Beach 7, PWSID NV0005021, Nevada”, https://aquacensus.com/water-systems/nevada/lahontan-dam-state-park-beach-7-nv0005021 (data as of October 1, 2026).