Abstract: A trench system includes a trench body operable to contain chemicals without corroding. The trench body includes a trench floor having a longitudinal length and a lateral width. A pair of first and second sidewalls is welded to opposing longitudinal perimeters of the trench floor and extend vertically upwards therefrom. Wall support ribs are attached to outer surfaces of the first and second sidewalls and extend laterally outward and vertically upward therefrom. Floor support ribs are attached to an outer surface of the trench floor and extend vertically downward therefrom. A vertically extending anchoring slot is attached to an outer distal edge of each wall support rib. Each anchoring slot is configured to receive a metal reinforcement bar therethrough at an acute angle to the wall support ribs. The metal reinforcement bars are operable to reinforce concrete poured around the outer surfaces of the first and second sidewalls.