Public water system · CA0202504
ActiveMarkleeville Water Co.
At a glance
Markleeville Water Co. (PWSID CA0202504) is an active community water system in Alpine County, California. It reports serving 175 people through 167 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, none is health-based, and the most recent began in October 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
175
Service connections
167
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Markleeville Water Co. compare with other water systems in Alpine County?
By EPA's size categories, Markleeville Water Co. is a very small system (500 people or fewer). Alpine County has 35 active public water systems, and Markleeville Water Co. is the 6th-largest of them by population served. Its population served is about 58% below the county average of 419 people per system, and accounts for 1.2% of the 14,677 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 Markleeville Water Co. 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 Markleeville Water Co.?
EPA lists Markleeville Water Co. 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. 20 of the 35 active systems in Alpine County (57%) are also privately owned.
Does Markleeville Water Co. have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2017. The violations listed here began between January 1984 and October 2017. By type: 9 public notice, recordkeeping or other and 3 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 9 as archived and 3 as resolved. 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. 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 |
|---|---|---|---|---|
| 2017-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2013-04-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1984-09-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-08-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-07-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-06-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-05-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-04-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-03-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-02-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-01-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | 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.
Markleeville Water Co.: frequently asked questions
Who runs Markleeville Water Co.?
Markleeville Water Co. (PWSID CA0202504) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Markleeville Water Co. serve?
Markleeville Water Co. reports serving 175 people through 167 service connections in Alpine County, California.
Where does Markleeville Water Co. 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 Markleeville Water Co. have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2017. 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 Markleeville Water Co.'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, none is health-based, and the most recent began in October 2017. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Markleeville Water Co.'s water quality report?
As a community water system, Markleeville Water Co. 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 Alpine County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Kirkwood Meadows Public Utility District | Alpine | 7,851 | Community | Groundwater |
| Bear Valley Mountain Resort | Alpine | 3,500 | Transient non-community | Groundwater |
| Ca State Parks - Grover Hot Springs | Alpine | 1,002 | Transient non-community | Surface water |
| Lake Alpine Water Company | Alpine | 625 | Community | Surface water |
| Kirkwood Sunrise Grill | Alpine | 500 | Transient non-community | Groundwater |
| Diamond Valley School | Alpine | 100 | Non-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, “Markleeville Water Co., PWSID CA0202504, California”, https://aquacensus.com/water-systems/california/markleeville-water-co-ca0202504 (data as of October 1, 2026).