The Trump administration and officials have faced questions over whether more could have been done to protect and warn residents ahead of the flooding.
A federal judge on Friday ordered the Trump administration to halt indiscriminate immigration stops and arrests in seven California counties, including Los Angeles.
The manager of one farm, Edgar Rodriguez, a U.S. citizen, said he was handcuffed, thrown to the ground and had his arm twisted behind his back after he asked to see a warrant.