Public water system · CA1910027
ActiveLos Angeles Cwwd 40, Reg. 35-N.E. L.A.
At a glance
Los Angeles Cwwd 40, Reg. 35-N.E. L.A. (PWSID CA1910027) is an active community water system in Los Angeles County, California. It reports serving 612 people through 240 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2007.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
612
Service connections
240
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Los Angeles Cwwd 40, Reg. 35-N.E. L.A. compare with other water systems in Los Angeles County?
By EPA's size categories, Los Angeles Cwwd 40, Reg. 35-N.E. L.A. is a small system (501 to 3,300 people). Los Angeles County has 275 active public water systems. Its population served is well below the county average of 36,762 people per system, and accounts for less than 0.1% of the 10,109,668 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 Los Angeles Cwwd 40, Reg. 35-N.E. L.A. 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. 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 Los Angeles Cwwd 40, Reg. 35-N.E. L.A.?
EPA lists Los Angeles Cwwd 40, Reg. 35-N.E. L.A. as owned by a local 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. 100 of the 275 active systems in Los Angeles County (36%) are also owned by a local government.
Does Los Angeles Cwwd 40, Reg. 35-N.E. L.A. have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2007. By type: 1 monitoring and reporting. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 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 |
|---|---|---|---|---|
| 2007-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
The one violation in EPA's records. 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.
Los Angeles Cwwd 40, Reg. 35-N.E. L.A.: frequently asked questions
Who runs Los Angeles Cwwd 40, Reg. 35-N.E. L.A.?
Los Angeles Cwwd 40, Reg. 35-N.E. L.A. (PWSID CA1910027) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does Los Angeles Cwwd 40, Reg. 35-N.E. L.A. serve?
Los Angeles Cwwd 40, Reg. 35-N.E. L.A. reports serving 612 people through 240 service connections in Los Angeles County, California.
Where does Los Angeles Cwwd 40, Reg. 35-N.E. L.A. 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 Los Angeles Cwwd 40, Reg. 35-N.E. L.A. have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2007. 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 Los Angeles Cwwd 40, Reg. 35-N.E. L.A.'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 records list one violation for this system; it is not health-based, and the most recent began in December 2007. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Los Angeles Cwwd 40, Reg. 35-N.E. L.A.'s water quality report?
As a community water system, Los Angeles Cwwd 40, Reg. 35-N.E. L.A. 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 Los Angeles County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Los Angeles-City, Dept. of Water & Power | Los Angeles | 3,875,566 | Community | Surface water |
| Long Beach Utilities Department | Los Angeles | 466,772 | Community | Purchased surface water |
| Santa Clarita Valley Water Agency | Los Angeles | 294,090 | Community | Surface water |
| Gswc - Southwest | Los Angeles | 277,740 | Community | Purchased surface water |
| San Gabriel Valley Water Co.-El Monte | Los Angeles | 248,000 | Community | Groundwater |
| Los Angeles Cwwd 40 Reg 4 & 34 Lancaster | Los Angeles | 208,129 | Community | Purchased 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, “Los Angeles Cwwd 40, Reg. 35-N.E. L.A., PWSID CA1910027, California”, https://aquacensus.com/water-systems/california/los-angeles-cwwd-40-reg-35-n-e-l-a-ca1910027 (data as of October 1, 2026).