Public water system · CA3710008
ActiveFallbrook PUD
At a glance
Fallbrook PUD (PWSID CA3710008) is an active community water system in San Diego County, California. It reports serving 35,237 people through 9,205 service connections. Its primary water source is purchased surface water, 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 May 1980.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
35,237
Service connections
9,205
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Fallbrook PUD compare with other water systems in San Diego County?
By EPA's size categories, Fallbrook PUD is a large system (10,001 to 100,000 people). San Diego County has 191 active public water systems. Its population served is about 81% above the county average of 19,427 people per system, and accounts for 0.9% 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 community water system reports serving 6,703 people, so Fallbrook PUD is about 5.3 times 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 506 California systems (6.8%) list purchased surface water as their primary source.
Who owns and regulates Fallbrook PUD?
EPA lists Fallbrook PUD 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. 58 of the 191 active systems in San Diego County (30%) are also owned by a local government.
Does Fallbrook PUD have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in May 1980. By type: 1 public notice, recordkeeping or other. EPA lists 1 as archived. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 1980-05-28 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
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.
Fallbrook PUD: frequently asked questions
Who runs Fallbrook PUD?
Fallbrook PUD (PWSID CA3710008) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does Fallbrook PUD serve?
Fallbrook PUD reports serving 35,237 people through 9,205 service connections in San Diego County, California.
Where does Fallbrook PUD get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Fallbrook PUD 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 May 1980. 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 Fallbrook PUD'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 May 1980. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Fallbrook PUD's water quality report?
As a community water system, Fallbrook PUD 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 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, “Fallbrook PUD, PWSID CA3710008, California”, https://aquacensus.com/water-systems/california/fallbrook-pud-ca3710008 (data as of October 1, 2026).