Tours & Events

Open House at 4S Ranch Water Reclamation Facility
Saturday, August 18
Join us for our annual open house event at 4S Ranch Water Reclamation Facility where we will offer guided facility tours at 9:00, 10:00, and 11:00 a.m., a water-efficient landscaping workshop at 10:00 a.m., children’s activities, refreshments, and more! Everyone is welcome to this free event, no registration required. The open house will be on Saturday, August 18 from 9:00 a.m. to 12:00 p.m. at 16595 Dove Canyon Road in San Diego.

CA friendly landscape backyardWaterSmart Landscape Design for Homeowners Workshop
Tuesday, August 28
This FREE three hour workshop will discuss the step-by-step process of transforming your yard into a water-efficient landscape. A local landscape expert will cover topics including design ideas, soil analysis, plant selection, and efficient irrigation. The workshop will be held at the Encinitas Community Center on Tuesday, August 28 from 5:30 p.m. to 8:30 p.m. Registration is required.

guests at water treatment plantPublic Tour
Thursday, October 11 
OMWD offers tours of its facilities, including Elfin Forest Recreational Reserve, David C. McCollom Water Treatment Plant, and the 4S Ranch Water Reclamation Facility, several times a year. Join us to get a behind-the-scenes look at what it takes to deliver safe, reliable drinking water. Registration is required.

Elfin Forest Recreation Reserve
Interested in getting in touch with our local natural environment? OMWD’s Elfin Forest Recreational Reserve hosts talks, workshops, and educational hikes to nature lovers of all ages. Visit our Reserve’s events page for more more information.

Regional Water Smart Events
Organizations throughout the county offer a variety of water smart classes, workshops, and tours. Visit our water wholesaler’s event schedule for details.

Facility Tours

OMWD offers tours of its facilities, including Elfin Forest Recreational Reserve,  David C. McCollom Water Treatment Plant and the 4S Ranch Water Reclamation Facility several times a year. Please note that Olivenhain Dam and Reservoir are owned by the San Diego County Water Authority; please contact the Authority for tour opportunities.

Elfin Forest
Recreational Reserve

4S Ranch Water
Reclamation Facility

David C. McCollom
Water Treatment Plant

Tour Schedule

Tours begin at 8:00 a.m. and end at approximately noon. Reservations must be made by noon on the Monday prior to the scheduled tour date and all attendees must complete a tour release form. Tours may be canceled or closed depending on the level of participation. For safety reasons, tours are not held during inclement weather. Although this is a shuttled tour, there is some walking and stair climbing required, so we recommend wearing comfortable, closed-toe shoes, and loose clothing.  It is also suggested that attendees bring a hat, light jacket, and camera.

Upcoming Tours
October 11

Tours are scheduled for the second Thursday of January, April, July, and October.  All attendees will need to submit a signed tour release form.

For more information, please call 760-632-4641.


1Water Efficient
Landscape Workshops

OMWD sponsors several free landscape workshops each year that are listed on our events page.  For additional workshops, classes, and instructional videos, visit the WaterSmart San Diego website. 


Find great examples of beautiful landscapes that require less water by visiting the annual WaterSmart Landscape Contest website.

School Programs

Children in school today are the leaders of tomorrow. OMWD realizes the important role these children will play in future decisions on growth, policies, and water resources. For more information on free education programs within OMWD’s service area, including auditorium performances and custom classroom presentations, visit our schools page.

4Speaking Engagements &
Public Appearances

OMWD employees provide outreach services throughout the year and are able to deliver presentations, facilitate discussions, and provide general information about water issues for groups, civic organizations, and associations.

5Visit Our

OMWD’s lobby hosts a small library of material on gardening, irrigation, water conservation, and water industry news. Drop by when you pay your bill or are in the neighborhood.