Public water system · NV0000190
ActiveTruckee Meadows Water Authority
At a glance
Truckee Meadows Water Authority (PWSID NV0000190) is an active community water system in Washoe County, Nevada. It reports serving 442,000 people through 120,047 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is health-based, and the most recent began in January 1992.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
442,000
Service connections
120,047
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Truckee Meadows Water Authority compare with other water systems in Washoe County?
By EPA's size categories, Truckee Meadows Water Authority is a very large system (more than 100,000 people). Washoe County has 64 active public water systems, and Truckee Meadows Water Authority is the largest of them by population served. Its population served is about 57 times the county average of 7,708 people per system, and accounts for 90% 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 community water system reports serving 6,703 people, so Truckee Meadows Water Authority is about 66 times that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Nevada has 224 active community water systems, 35% of the state's 643 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 16 Nevada systems (2.5%) list surface water as their primary source.
Who owns and regulates Truckee Meadows Water Authority?
EPA lists Truckee Meadows Water Authority 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 Truckee Meadows Water Authority have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in January 1992. By type: 1 required treatment not met. The contaminant or rule involved is Surface Water Treatment Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 1992-01-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
The one violation in EPA's records.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.
Truckee Meadows Water Authority: frequently asked questions
Who runs Truckee Meadows Water Authority?
Truckee Meadows Water Authority (PWSID NV0000190) is a community water system owned by a local government. It is regulated by the NV state drinking water program.
How many people does Truckee Meadows Water Authority serve?
Truckee Meadows Water Authority reports serving 442,000 people through 120,047 service connections in Washoe County, Nevada.
Where does Truckee Meadows Water Authority get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Truckee Meadows Water Authority have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in January 1992. 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 Truckee Meadows Water Authority'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 one violation for this system; it is health-based, and the most recent began in January 1992. For current results, consult the system's annual water quality report, EPA ECHO, or the NV state drinking water program.
Where can I find Truckee Meadows Water Authority's water quality report?
As a community water system, Truckee Meadows Water Authority must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Washoe County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| 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 |
| Sand Harbor State Park | Washoe | 1,000 | 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, “Truckee Meadows Water Authority, PWSID NV0000190, Nevada”, https://aquacensus.com/water-systems/nevada/truckee-meadows-water-authority-nv0000190 (data as of October 1, 2026).