Public water system · NV0000793
ActiveWashoe Lake State Park
At a glance
Washoe Lake State Park (PWSID NV0000793) is an active transient non-community water system in Washoe County, Nevada. It reports serving 467 people through 35 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in January 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
467
Service connections
35
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Washoe Lake State Park compare with other water systems in Washoe County?
By EPA's size categories, Washoe Lake State Park is a very small system (500 people or fewer). Washoe County has 64 active public water systems. Its population served is well below the county average of 7,708 people per system, and accounts for less than 0.1% of the 493,331 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 Washoe Lake State Park is about 3.2 times 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 Washoe Lake State Park?
EPA lists Washoe Lake State Park as owned by a local 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. 19 of the 64 active systems in Washoe County (30%) are also owned by a local government.
Does Washoe Lake State Park have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in January 2017. The violations listed here began between October 2002 and January 2017. By type: 9 monitoring and reporting and 3 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (10 of them). EPA lists 10 as archived and 2 as resolved. 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. 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 |
|---|---|---|---|---|
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2008-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2007-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2007-09-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2006-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2006-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2006-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2003-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2003-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2002-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2002-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
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.
Washoe Lake State Park: frequently asked questions
Who runs Washoe Lake State Park?
Washoe Lake State Park (PWSID NV0000793) is a transient non-community water system owned by a local government. It is regulated by the NV state drinking water program.
How many people does Washoe Lake State Park serve?
Washoe Lake State Park reports serving 467 people through 35 service connections in Washoe County, Nevada.
Where does Washoe Lake State 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 Washoe Lake State Park have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 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 Washoe Lake State 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, 3 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 Washoe Lake State Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Washoe Lake State Park 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 Washoe County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Truckee Meadows Water Authority | Washoe | 442,000 | Community | Surface water |
| Sun Valley Gid | Washoe | 17,000 | Community | Purchased surface water |
| Great Basin Water Co Cold Springs | Washoe | 9,910 | Community | Groundwater |
| Incline Village Gid | Washoe | 9,313 | Community | Surface water |
| Great Basin Water Co Spanish Springs | Washoe | 1,450 | Community | Groundwater |
| Truckee Canyon | Washoe | 1,016 | Non-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, “Washoe Lake State Park, PWSID NV0000793, Nevada”, https://aquacensus.com/water-systems/nevada/washoe-lake-state-park-nv0000793 (data as of October 1, 2026).