Expo Rail Maintenance Facility
Santa Monica, CA
Expo Rail Maintenance Facility Stormwater Harvesting For Runoff
When the City of Santa Monica began planning a nearly 80,000 square foot, state of the art Operations and Light Rail Vehicle Maintenance Facility for the L.A. Metro, they needed to reduce stormwater runoff on the property by California ordinance. However, they also wanted to collect the stormwater for non-potable reuse, which along with other sustainability initiatives, led the City to pursue LEED Gold certification for the project. This would be achieved by installing solar thermal panels, providing bike racks and preferred parking for fuel efficient and carpool vehicles, utilizing natural daylight in the facility, and installing a stormwater harvesting system, among other efforts.
The City of Santa Monica needed to include a significant stormwater detention system to reduce stormwater run-off for the facility in their construction plans, and as a LEED Gold project, the team also wanted to find a way to use the detained stormwater for non-potable application at the facility.
Water Supply Sustainability Index (2050)
Santa Monica, CA
Kiewit Construction for the City of Santa Monica
DESIGN & SPECIALTY
Plumbing Engineer, Civil Engineer, Commercial Contractors, Commercial Architect
With an estimated demand of 5,500 gallons of water per day, the system is expected to save 1.2 to 1.6 million gallons of water per year while greatly reducing stormwater run-off from the entire property.
The harvested water helps to reduce potable water use by over 40% at the facility and provides over 50% of the municipal water that would have been needed for landscape irrigation.