Public water system · CA0900300
ActiveKyburz Mutual Water Company
At a glance
Kyburz Mutual Water Company (PWSID CA0900300) is an active community water system in El Dorado County, California. It reports serving 150 people through 123 service connections. Its primary water source is surface water, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 8 are health-based, and the most recent began in September 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
150
Service connections
123
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Kyburz Mutual Water Company compare with other water systems in El Dorado County?
By EPA's size categories, Kyburz Mutual Water Company is a very small system (500 people or fewer). El Dorado County has 124 active public water systems. Its population served is well below the county average of 2,351 people per system, and accounts for less than 0.1% 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 Kyburz Mutual Water Company 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. California has 2,997 active community water systems, 40% of the state's 7,479 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 609 California systems (8.1%) list surface water as their primary source.
Who owns and regulates Kyburz Mutual Water Company?
EPA lists Kyburz Mutual Water Company 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. 80 of the 124 active systems in El Dorado County (65%) are also privately owned.
Does Kyburz Mutual Water Company have drinking water violations?
Of the 12 most recent violations in EPA's records, 8 are health-based, and the most recent began in September 2023. The violations listed here began between January 2020 and September 2023. By type: 8 required treatment not met, 2 monitoring and 2 monitoring and reporting. The contaminant or rule involved most often is Interim Enhanced Surface Water Treatment Rule (8 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2023-09-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2023-07-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2023-06-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2023-05-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2023-04-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2023-03-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2023-02-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2023-01-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2022-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
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.
Kyburz Mutual Water Company: frequently asked questions
Who runs Kyburz Mutual Water Company?
Kyburz Mutual Water Company (PWSID CA0900300) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Kyburz Mutual Water Company serve?
Kyburz Mutual Water Company reports serving 150 people through 123 service connections in El Dorado County, California.
Where does Kyburz Mutual Water Company 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 Kyburz Mutual Water Company have any drinking water violations?
Of the 12 most recent violations in EPA's records, 8 are health-based, and the most recent began in September 2023. 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 Kyburz Mutual Water Company'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, 8 are health-based, and the most recent began in September 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Kyburz Mutual Water Company's water quality report?
As a community water system, Kyburz Mutual Water Company 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 |
| South Tahoe PUD - Main | El Dorado | 100,000 | Community | Groundwater |
| 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 |
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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, “Kyburz Mutual Water Company, PWSID CA0900300, California”, https://aquacensus.com/water-systems/california/kyburz-mutual-water-company-ca0900300 (data as of October 1, 2026).