Public water system · CA3110019
ActiveOlympic Valley Mwc
At a glance
Olympic Valley Mwc (PWSID CA3110019) is an active community water system in Placer County, Nevada. It reports serving 756 people through 270 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 7 violations for this system; all are health-based, and the most recent began in November 2009.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
756
Service connections
270
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Olympic Valley Mwc compare with other water systems in Placer County?
By EPA's size categories, Olympic Valley Mwc is a small system (501 to 3,300 people). Placer County has 1 active public water system, and Olympic Valley Mwc is the largest of them by population served. Its population served is roughly in line with the county average of 756 people per system, and accounts for 100% of the 756 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 Olympic Valley Mwc is well below 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 Olympic Valley Mwc?
EPA lists Olympic Valley Mwc as privately owned. The CA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 1 of the 1 active systems in Placer County (100%) are also privately owned.
Does Olympic Valley Mwc have drinking water violations?
EPA's records list 7 violations for this system; all are health-based, and the most recent began in November 2009. The violations listed here began between August 2002 and November 2009. By type: 7 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (7 of them). EPA lists 7 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 |
|---|---|---|---|---|
| 2009-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2007-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2007-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2007-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2006-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2006-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 7 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.
Olympic Valley Mwc: frequently asked questions
Who runs Olympic Valley Mwc?
Olympic Valley Mwc (PWSID CA3110019) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Olympic Valley Mwc serve?
Olympic Valley Mwc reports serving 756 people through 270 service connections in Placer County, Nevada.
Where does Olympic Valley Mwc 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 Olympic Valley Mwc have any drinking water violations?
EPA's records list 7 violations for this system; all are health-based, and the most recent began in November 2009. 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 Olympic Valley Mwc'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 7 violations for this system; all are health-based, and the most recent began in November 2009. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Olympic Valley Mwc's water quality report?
As a community water system, Olympic Valley Mwc 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.
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Olympic Valley Mwc, PWSID CA3110019, Nevada”, https://aquacensus.com/water-systems/nevada/olympic-valley-mwc-ca3110019 (data as of October 1, 2026).