The Latty Avenue Site (Latty) is located in northern St. Louis County within the city limits of Hazelwood and Berkeley, Missouri. Hazelwood Interim Storage Site (HISS) is located at 9170 Latty Ave., approximately 3.2 miles northeast of the control tower of the St. Louis Lambert International Airport and approximately half a mile northeast of the St. Louis Airport Site. Latty is comprised of eight vicinity properties (VPs) as well as HISS and Futura.The residences in Berkeley are southeast of the site.