Public water system · CA2110305
ActiveCsp - Mt Tam East Peak System
At a glance
Csp - Mt Tam East Peak System (PWSID CA2110305) is an active transient non-community water system in Marin County, California. It reports serving 75 people through 3 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
75
Service connections
3
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Csp - Mt Tam East Peak System compare with other water systems in Marin County?
By EPA's size categories, Csp - Mt Tam East Peak System is a very small system (500 people or fewer). Marin County has 46 active public water systems. Its population served is well below the county average of 6,203 people per system, and accounts for less than 0.1% of the 285,353 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Csp - Mt Tam East Peak System is about half of that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. California has 3,016 active transient non-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 Csp - Mt Tam East Peak System?
EPA lists Csp - Mt Tam East Peak System as owned by a state 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. 6 of the 46 active systems in Marin County (13%) are also owned by a state government.
Does Csp - Mt Tam East Peak System have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Csp - Mt Tam East Peak System. For the latest compliance status, check EPA ECHO for current compliance history.
Csp - Mt Tam East Peak System: frequently asked questions
Who runs Csp - Mt Tam East Peak System?
Csp - Mt Tam East Peak System (PWSID CA2110305) is a transient non-community water system owned by a state government. It is regulated by the CA state drinking water program.
How many people does Csp - Mt Tam East Peak System serve?
Csp - Mt Tam East Peak System reports serving 75 people through 3 service connections in Marin County, California.
Where does Csp - Mt Tam East Peak 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 Csp - Mt Tam East Peak System have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Csp - Mt Tam East Peak 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. EPA's Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Csp - Mt Tam East Peak System's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Csp - Mt Tam East Peak System is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Marin County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Marin Municipal Water District | Marin | 186,895 | Community | Surface water |
| North Marin Water District | Marin | 61,691 | Community | Surface water |
| Nps Ggnra | Marin | 18,447 | Community | Purchased surface water |
| Bolinas Community PUD | Marin | 2,483 | Community | Surface water |
| North Marin Wd - Pt. Reyes | Marin | 1,841 | Community | Groundwater |
| Csp - Angel Island St Park | Marin | 1,622 | 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, “Csp - Mt Tam East Peak System, PWSID CA2110305, California”, https://aquacensus.com/water-systems/california/csp-mt-tam-east-peak-system-ca2110305 (data as of October 1, 2026).