The settlement applies to more than 1,800 workers who worked between 2001 and 2013 at three 100% Walmart-dedicated Schneider Logistics distribution centers in Mira Loma (Riverside County), Calif., in the case Carrillo vs. Schneider Logistics et al. The facilities, operated by various warehouse companies for Wal-Mart since 2001, function together as the largest Walmart distribution center in the Western U.S. According BerlinRosen, a public affairs firm representing union interests, the suit alleged major wage theft occurring over 10 years against "lumpers"-workers who load and unload boxes by hand from shipping containers and into trailers for Walmart.