Public water system · CA3702509
ActiveRancho Corte Madera, Inc..
At a glance
Rancho Corte Madera, Inc.. (PWSID CA3702509) is an active transient non-community water system in San Diego County, California. It reports serving 46 people through 38 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
46
Service connections
38
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Rancho Corte Madera, Inc.. compare with other water systems in San Diego County?
By EPA's size categories, Rancho Corte Madera, Inc.. is a very small system (500 people or fewer). San Diego County has 191 active public water systems. Its population served is well below the county average of 19,427 people per system, and accounts for less than 0.1% of the 3,710,459 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 Rancho Corte Madera, Inc.. is well 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 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 Rancho Corte Madera, Inc..?
EPA lists Rancho Corte Madera, Inc.. 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. 101 of the 191 active systems in San Diego County (53%) are also privately owned.
Does Rancho Corte Madera, Inc.. 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 Rancho Corte Madera, Inc... For the latest compliance status, check EPA ECHO for current compliance history.
Rancho Corte Madera, Inc..: frequently asked questions
Who runs Rancho Corte Madera, Inc..?
Rancho Corte Madera, Inc.. (PWSID CA3702509) is a transient non-community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Rancho Corte Madera, Inc.. serve?
Rancho Corte Madera, Inc.. reports serving 46 people through 38 service connections in San Diego County, California.
Where does Rancho Corte Madera, Inc.. 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 Rancho Corte Madera, Inc.. have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Rancho Corte Madera, Inc..'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 Rancho Corte Madera, Inc..'s water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Rancho Corte Madera, Inc.. 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 San Diego County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| San Diego, City of | San Diego | 1,385,379 | Community | Surface water |
| Helix Water District | San Diego | 277,668 | Community | Surface water |
| Otay Water District | San Diego | 238,008 | Community | Purchased surface water |
| Sweetwater Authority | San Diego | 191,282 | Community | Surface water |
| Oceanside, City of | San Diego | 171,483 | Community | Purchased surface water |
| Escondido, City of | San Diego | 137,044 | 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, “Rancho Corte Madera, Inc.., PWSID CA3702509, California”, https://aquacensus.com/water-systems/california/rancho-corte-madera-inc-ca3702509 (data as of October 1, 2026).