Public water system · CA2110304
ActiveCsp - Marconi Conference Center
At a glance
Csp - Marconi Conference Center (PWSID CA2110304) is an active transient non-community water system in Marin County, California. It reports serving 120 people through 12 service connections. Its primary water source is groundwater under influence of surface water, 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
120
Service connections
12
Primary source
GU
Groundwater under influence of surface water
System type
TNCWS
Transient non-community water system
System record
How does Csp - Marconi Conference Center compare with other water systems in Marin County?
By EPA's size categories, Csp - Marconi Conference Center 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 - Marconi Conference Center is about 17% below 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 under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules. 105 California systems (1.4%) list groundwater under influence of surface water as their primary source.
Who owns and regulates Csp - Marconi Conference Center?
EPA lists Csp - Marconi Conference Center 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 - Marconi Conference Center 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 - Marconi Conference Center. For the latest compliance status, check EPA ECHO for current compliance history.
Csp - Marconi Conference Center: frequently asked questions
Who runs Csp - Marconi Conference Center?
Csp - Marconi Conference Center (PWSID CA2110304) 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 - Marconi Conference Center serve?
Csp - Marconi Conference Center reports serving 120 people through 12 service connections in Marin County, California.
Where does Csp - Marconi Conference Center get its water?
EPA SDWIS lists this system's primary water source as groundwater under influence of surface water. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules.
Does Csp - Marconi Conference Center have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Csp - Marconi Conference Center'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 - Marconi Conference Center's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Csp - Marconi Conference Center 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 - Marconi Conference Center, PWSID CA2110304, California”, https://aquacensus.com/water-systems/california/csp-marconi-conference-center-ca2110304 (data as of October 1, 2026).