Complex sentence: About 1907 the supply from the West Canada creek was introduced into the city and in 1915 the barge canal reservoir at Hinckley was completed and it is from this reservoir that the West Canada creek supply was taken, at least through 1918.
Split into simpler sentences: About 1907 the supply from the West Canada creek was introduced into the city. It is from this reservoir that the West Canada creek supply was taken, at least through 1918.