Tri-cities Prep - A Catholic High School Under The Patronage Of Saint Thomas Aquinas is an active carrier based out of Pasco, Washington. Tri-cities Prep - A Catholic High School Under The Patronage Of Saint Thomas Aquinas operates under USDOT number 3643312. Tri-cities Prep - A Catholic High School Under The Patronage Of Saint Thomas Aquinas has 4 tractors and employs 2 drivers. Tri-cities Prep - A Catholic High School Under The Patronage Of Saint Thomas Aquinas is authorized to operate Intrastate Non-Hazmat cargo.