George Sorocold, Derby Water Engineer
Modern map of where the Derby Mill Pump was situated
No trace of any of the mills or the fleams are evident on the satellite image above. I would guess that the original water pumping station would have just been to the right (east) of the Sowter Road where it meets with St. Michael's Lane.

Details of the streets in which the ELM WATER PIPES were laid are shown in next slide.