MANTECA, Calif. (KCRA) — A levee near Manteca was breached Monday night leading to mandatory evacuations in the area, according to San Joaquin County officials said. Mandatory evacuations were ordered for people living within the below boundary:.... The National Weather Service issued a flash flood warning for the pictured area on Monday, Feb. 20, 2017, due to a levee breach south of Manteca. The warning is set to expire at 7 a.m. Tuesday.