Public water system · CA0910002
ActiveSouth Tahoe PUD - Main
At a glance
South Tahoe PUD - Main (PWSID CA0910002) is an active community water system in El Dorado County, California. It reports serving 100,000 people through 14,125 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; 5 are health-based, and the most recent began in April 2008.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
100,000
Service connections
14,125
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does South Tahoe PUD - Main compare with other water systems in El Dorado County?
By EPA's size categories, South Tahoe PUD - Main is a large system (10,001 to 100,000 people). El Dorado County has 124 active public water systems, and South Tahoe PUD - Main is the 2nd-largest of them by population served. Its population served is about 43 times the county average of 2,351 people per system, and accounts for 34% of the 291,553 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active community water system reports serving 6,703 people, so South Tahoe PUD - Main is about 15 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. California has 2,997 active community water systems, 40% of the state's 7,479 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.
Who owns and regulates South Tahoe PUD - Main?
EPA lists South Tahoe PUD - Main as owned by a local government. 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. 19 of the 124 active systems in El Dorado County (15%) are also owned by a local government.
Does South Tahoe PUD - Main have drinking water violations?
EPA's records list 7 violations for this system; 5 are health-based, and the most recent began in April 2008. The violations listed here began between January 1990 and April 2008. By type: 5 contaminant level above the legal limit and 2 monitoring and reporting. The contaminant or rule involved most often is Arsenic (4 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 |
|---|---|---|---|---|
| 2008-04-01 | 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 |
| 2008-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2007-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 1993-03-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1990-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Resolved |
| 1990-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Tetrachloroethylenecode 2987 | 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.
South Tahoe PUD - Main: frequently asked questions
Who runs South Tahoe PUD - Main?
South Tahoe PUD - Main (PWSID CA0910002) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does South Tahoe PUD - Main serve?
South Tahoe PUD - Main reports serving 100,000 people through 14,125 service connections in El Dorado County, California.
Where does South Tahoe PUD - Main 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 South Tahoe PUD - Main have any drinking water violations?
EPA's records list 7 violations for this system; 5 are health-based, and the most recent began in April 2008. 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 South Tahoe PUD - Main'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; 5 are health-based, and the most recent began in April 2008. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find South Tahoe PUD - Main's water quality report?
As a community water system, South Tahoe PUD - Main 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 El Dorado County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| El Dorado Id - Main | El Dorado | 132,171 | Community | Surface water |
| Georgetown Divide PUD | El Dorado | 9,434 | Community | Surface water |
| Placerville, City of - Main | El Dorado | 9,224 | Community | Purchased surface water |
| South Shore Recreation Area | El Dorado | 3,300 | Non-transient non-community | Groundwater |
| Lukins Brothers Water Company | El Dorado | 3,277 | Community | Groundwater |
| Lakeside Park Association | El Dorado | 2,648 | Community | Surface water |
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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, “South Tahoe PUD - Main, PWSID CA0910002, California”, https://aquacensus.com/water-systems/california/south-tahoe-pud-main-ca0910002 (data as of October 1, 2026).