MacRitchie Reservoir, located off Lornie Road and completed in the late 1860s, was the first water supply system implemented in Singapore. At first named Impounding Reservoir, it was constructed with the donation of S$13,000 by the philanthropist Tan Kim Seng in 1857. The reservoir was again renamed Thomson Road Reservoir in 1907 before it became known as MacRitchie Reservoir, in 1922, after James MacRitchie, the Municipal Engineer of Singapore from 1883 to 1895.