TapWaterMap

CA / La Jolla

CA · Tap water records

La Jolla tap water, in plain English

Here is what the EPA's own data shows about tap water in La Jolla. According to EPA SDWIS data retrieved June 2026, La Jolla is served by 3 active community water systems, together reported to serve about 331 people.

As of June 2026, EPA records show no reported violations for the community water system(s) serving La Jolla. This means none of the federal drinking-water standards tracked in the EPA's SDWIS database were recorded as exceeded in the period covered. It is not a guarantee about every substance, or about the water inside your home's own plumbing.

What the EPA has on record, by system

Midway Mobile Homes Llc

213 served · groundwater · PWSID OH7802112

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Cypress Mobile Home Park

60 served · groundwater · PWSID FL6295613

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Katherine Resorts Water Company

58 served · groundwater · PWSID AZ0408018

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

What this means

A health-based violation means a contaminant was recorded above the limit the EPA tracks for it. A monitoring or reporting violation means a required test or report was late or missed — not that a contaminant was measured above a limit. “Returned to compliance” means the EPA recorded the issue as resolved.

This page summarizes the EPA's own records and does not assess whether your water is safe to drink. For the most current details, you can verify every record directly with the EPA, and contact your water system with questions.

Source: U.S. EPA Envirofacts SDWIS, retrieved June 2026. Records cover the EPA's full reporting history for these systems. Verify at EPA ECHO.