picture of it in the winter of 1942:http://images.ourontario.ca/whitby/details.asp?ID=44227
The Waterworks pump house was built in 1904 on the lakeshore between Whitby Harbour and Heydenshore Park. An additional pump house was built o the east of this building in 1959. The original building ceased to be used when a third pump house was completed in 1978. Courtesy of Whitby Public Library site.
This has been around for a very long time. I used to bike by it in the early 2000's
The Work Department (Whitby Water Supply Plant) is next door. Didn't see any intakes so didn't want to assume.
I am using logic--was this the old water plant? the new one is nearby