Hidden in plain sight, the Tujunga Spreading Grounds is more than just a patch of land. It’s a hidden reservoir, a key player in Los Angeles’ water story. The Tujunga Spreading Grounds is a vital part of Los Angeles’ water infrastructure. It plays a crucial role in replenishing the San Fernando Groundwater Basin. This basin is a massive underground reservoir that provides a significant portion of the city’s water supply. The Tujunga Spreading Grounds captures stormwater runoff that would otherwise flow into the ocean. This captured water is then allowed to percolate into the ground, recharging the aquifer below. This process not only conserves billions of gallons of water annually. It also helps improve water quality in the Los Angeles River by reducing polluted runoff.
The Tujunga Spreading Grounds recently underwent a major enhancement project. This project, completed in 2022, doubled the facility’s stormwater capture capacity. It can now capture an average of 5 billion gallons of water annually, enough to supply approximately 64,000 homes. The project involved reconfiguring the original 20 smaller basins into nine wider and deeper basins. This increased the overall storage capacity nearly eight-fold. Two new high-flow intakes were installed, increasing the water flow rate into the facility. The project also included the creation of a community space with a walking path, sitting areas, an outdoor classroom, and a hydration station. During construction, community concerns about noise and pollution were addressed. A quiet, zero-emission electric conveyor system was used to transport soil offsite, minimizing the impact on the surrounding neighborhood.
The Tujunga Spreading Grounds stands as a testament to the city’s commitment to water sustainability. It showcases innovative solutions for capturing and conserving this precious resource. The grounds are not only functional but also offer a place for the community to connect with nature. They provide a space for recreation and education. The Tujunga Spreading Grounds Enhancement Project was a collaborative effort between LADWP, the Los Angeles County Flood Control District, the California Department of Water Resources, and the California State Water Resources Control Board. It’s a prime example of how partnerships can lead to sustainable solutions for the future. As you stand here, at the intersection of human ingenuity and the natural world, take a moment to appreciate the unseen work happening beneath your feet. The Tujunga Spreading Grounds is silently working to ensure a more water-secure future for Los Angeles.