Water & Sewer Services

Water and sewer services are provided by separate public agencies and not by the City itself. Most Lake Forest residents are served by the Irvine Ranch Water District (formerly the Los Alisos Water District). However, the water district that serves your home will depend on the location of your residence.

Irvine Ranch Water District
15600 Sand Canyon Avenue
Irvine, CA 92618
(949) 453-5300
Irvine Ranch Water District Website

View IRWD residential rebate information.

El Toro Water District
24251 Los Alisos Boulevard
Lake Forest, CA 92630
(949) 837-0660
El Toro Water District Website

View ETWD residential rebate information.

Trabuco Canyon Water District 
32003 Dove Canyon Drive
Trabuco Canyon, CA 92679
(949) 858-0277
Trabuco Canyon Water District Website