The Southern Historic Stormwater Pathway—also called ‘‘Operable
Unit 6’’ (OU6) or the “Southern Pathway”—is part of the Montrose
Superfund cleanup site in Los Angeles County, Calif. From the 1940s
to 1960s stormwater with the chemical DDT and other chemicals from the Montrose
facility traveled through ditches and swampy areas to the Dominguez Channel. In
the 1960s, this pathway was covered with dirt, which prevented people from
Today, the land above where the pathway was covered includes part
of the former “ECI Property” on Torrance Blvd. and an area with 34 homes west
of S. Vermont Ave.
On March 12, 2021, the U.S. government sent a settlement between
EPA and the Montrose Chemical Corp to federal court for approval. If approved,
Montrose, under EPA oversight, will study the land above the pathway to see if
there are any human or ecological risks.
will share updates and information on this website as work on this pathway