A noise analysis was conducted to determine the impacts resulting from the conversion of a United States Postal Service distribution facility into a San Francisco Municipal Transportation Agency (MTA) auto impound lot. Using the Federal Highway Administration’s Traffic Noise Model, projected noise levels were calculated for vehicles being towed to/from the site, as well as noise from weekly auto auctions of impounded vehicles and their impact on adjacent residences. Calculation results were compared to the Daly City General Plan Noise Element to determine if the proposed facility complied with the applicable standards.