Public water system · CA3710010
ActiveHelix Water District
At a glance
Helix Water District (PWSID CA3710010) is an active community water system in San Diego County, California. It reports serving 277,668 people through 56,781 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
277,668
Service connections
56,781
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Helix Water District compare with other water systems in San Diego County?
By EPA's size categories, Helix Water District is a very large system (more than 100,000 people). San Diego County has 191 active public water systems, and Helix Water District is the 2nd-largest of them by population served. Its population served is about 14 times the county average of 19,427 people per system, and accounts for 7.5% 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 Helix Water District is about 41 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 609 California systems (8.1%) list surface water as their primary source.
Who owns and regulates Helix Water District?
EPA lists Helix Water District 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 Helix Water District 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 Helix Water District. For the latest compliance status, check EPA ECHO for current compliance history.
Helix Water District: frequently asked questions
Who runs Helix Water District?
Helix Water District (PWSID CA3710010) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does Helix Water District serve?
Helix Water District reports serving 277,668 people through 56,781 service connections in San Diego County, California.
Where does Helix Water District get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Helix Water District have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Helix Water District'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 the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Helix Water District's water quality report?
As a community water system, Helix Water District 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 |
| 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 |
| Vista Irrigation District | San Diego | 132,430 | 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, “Helix Water District, PWSID CA3710010, California”, https://aquacensus.com/water-systems/california/helix-water-district-ca3710010 (data as of October 1, 2026).