Marsh Campus

Marsh Campus

The IRWD San Joaquin Marsh Campus opened in January 2009. The Campus is the embodiment of IRWD’s dedication to lifelong water education. The location of the Campus at the San Joaquin Marsh & Wildlife Sanctuary provides a wide variety of educational venues and teaching opportunities utilizing IRWD’s Natural Treatment System, the Butterfly Garden, and the San Diego Creek. See Marsh Campus Buildings Map.

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The Campus is made up of several historic and restored ranch houses, the IRWD Duck Club and the new IRWD Learning Center. Explore the Related Content links below to learn more about these wonderful facilities. 

IRWD is committed to preserving the history of the Irvine Ranch. In cooperation with the Irvine Historical Society, The Irvine Company and the City of Irvine, IRWD has restored and preserved some of the original structures from the old Irvine Ranch. To learn more about today’s uses of these facilities; please visit the San Joaquin Marsh Campus.


One of the first historical refurbishment projects was an old ranch windmill which was slated to be demolished to make way for a freeway project. The windmill now sits at the entrance to the Michelson Water Recycling Plant. Click here for more history on the IRWD Windmill.

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 Historic Ranch Homes

IRWD restored and relocated three historic farm homes to the San Joaquin Marsh Campus. These homes were built on the Irvine Ranch in the early 1900's and were scheduled for demolition. Of note, one of the homes was the first in Orange County to have running water. An additional historical farmhouse was moved to Rattlesnake Reservoir to serve as the caretaker's house.


 The Duck Club

The IRWD Duck Club was originally home to two duck hunting clubs in Irvine, the Ricker-McHone and Old San Joaquin Duck Clubs. These two Duck Clubs operated until 1988 under permits from the Department of Fish and Game. Hunting at the Duck Club has not been permitted since that time. IRWD has preserved and expanded this historic building which today is available for public use. To locate The IRWD Duck Club please use this Map.

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Latest News

2018 Poster Contest FinalistsAbout 400 students entered the Water Awareness Poster Contest. Ten students have been recognized as finalists. Their posters move forward for a chance to be featured in the 2019 Water Awareness Poster Calendar published by the Metropolitan Water District of...
Ready, Set, QuakeCalifornia is earthquake country and you always want to be ready. IRWD suggests you enroll in the CodeRED® Emergency Alert System to receive updated information in any emergency. Just log on to and click “Emergency & CodeRED” in the...
Money-Saving Tesla Batteries Arrive at IRWD’s Water Recycling PlantA caravan of 18-wheelers and large hoisting cranes completed delivery on Tuesday of 75 high-efficiency Tesla batteries to the Michelson Water Recycling Plant, where they will be installed as part of Irvine Ranch Water District’s money-saving Energy Storage Program. For those...