Public water system · NV0002216
ActiveDouglas County Carson Valley System
At a glance
Douglas County Carson Valley System (PWSID NV0002216) is an active community water system in Douglas County, Nevada. It reports serving 6,488 people through 3,133 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, 5 are health-based, and the most recent began in December 2010.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
6,488
Service connections
3,133
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Douglas County Carson Valley System compare with other water systems in Douglas County?
By EPA's size categories, Douglas County Carson Valley System is a medium system (3,301 to 10,000 people). Douglas County has 38 active public water systems, and Douglas County Carson Valley System is the 2nd-largest of them by population served. Its population served is about 4.4 times the county average of 1,479 people per system, and accounts for 12% of the 56,213 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 Douglas County Carson Valley System is roughly in line with 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. 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 Douglas County Carson Valley System?
EPA lists Douglas County Carson Valley System 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. 16 of the 38 active systems in Douglas County (42%) are also owned by a local government.
Does Douglas County Carson Valley System have drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in December 2010. The violations listed here began between November 2002 and December 2010. By type: 7 monitoring and reporting and 5 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 8 as resolved and 4 as archived. 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. 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 |
|---|---|---|---|---|
| 2010-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2008-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2008-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2007-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2007-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2006-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2005-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2002-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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 |
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.
Douglas County Carson Valley System: frequently asked questions
Who runs Douglas County Carson Valley System?
Douglas County Carson Valley System (PWSID NV0002216) is a community water system owned by a local government. It is regulated by the NV state drinking water program.
How many people does Douglas County Carson Valley System serve?
Douglas County Carson Valley System reports serving 6,488 people through 3,133 service connections in Douglas County, Nevada.
Where does Douglas County Carson Valley System 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 Douglas County Carson Valley System have any drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in December 2010. 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 Douglas County Carson Valley System'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, 5 are health-based, and the most recent began in December 2010. For current results, consult the system's annual water quality report, EPA ECHO, or the NV state drinking water program.
Where can I find Douglas County Carson Valley System's water quality report?
As a community water system, Douglas County Carson Valley System 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 Douglas County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Gardnerville Ranchos Gid | Douglas | 11,300 | Community | Groundwater |
| Indian Hills Gid | Douglas | 5,962 | Community | Groundwater |
| Gardnerville Water Company | Douglas | 5,800 | Community | Groundwater |
| Kingsbury Gid | Douglas | 3,839 | Community | Surface water |
| Edgewood Water Company | Douglas | 3,800 | Non-transient non-community | Surface water |
| Town of Minden | Douglas | 3,500 | 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, “Douglas County Carson Valley System, PWSID NV0002216, Nevada”, https://aquacensus.com/water-systems/nevada/douglas-county-carson-valley-system-nv0002216 (data as of October 1, 2026).