LAWA 2022 Sustainability Report
VNY
LAX Stormwater Best Management Practices In 2021, LAX acquired and installed a combination of stormwater best management practices (BMPs), including drain inlet filters and Filtrexx® wattles, at 42 high priority, strategic locations associated with cargo and ground service equipment (GSE) facilities throughout the Dominguez Drainage Area to target and reduce metal contaminants in LAX’s stormwater runoff. Ongoing maintenance and assessment of the BMPs during the 2021-2022 rainy season showed that the BMPs resulted in a total of 575 pounds of trash, debris, and sediment removed from drain inlet filters. Since the peak in the 2020-2021 rainy season, concentrations of aluminum, copper, and zinc in stormwater have decreased 40%, 70%, and 61% respectively due to BMPs. Measurements of annual average quantities of aluminum, copper, and zinc have shown the impact of the BMPs in significantly reducing concentrations since the peak in 2020-2021 and has helped LAX reach its baseline status for copper and zinc.
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ANNUAL AVERAGE CONCENTRATION OF METALS IN STORMWATER AT THE DOMINGUEZ DRAINAGE AREA
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VNY POTABLE WATER USE
3.0
20
Aluminum Copper Zinc
16
2.5
12
2.0
8
1.5
4
0
1.0
2010
2012
2014 2016 2018 2020 2022
The Jet Aviation Master Leasehold water treatment infiltration system remained in use in 2022. The infiltration system is designed to pretreat stormwater runoff, removing sediment, trash, and oil from stormwater. Pretreated stormwater is held in underground permeable storage units that have a capacity for a 50 to 100-year storm and allow for subsurface infiltration. Since 2016, the Jet Aviation Master Leasehold Water infiltration system has: 3 Mitigated stormwater runoff for 53 acres of VNY airport lease land 3 Infiltrated 1,200,000 gallons of water into the water table
0.5
0.0
2020-2021
2021-2022
2022-2023
LANDSCAPE IRRIGATION AT LAX
66.8% Reclaimed water
59.53 acres and 2,249,672 gal used
29.56 acres and 1,124,836 gal used 33.2% Potable water
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29
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