AHK
Senior Member
Two comments - first, agree that the holes being drilled look like footings - from their position in the site, it looks like they are for the Library building, a low rise structure, and not for the Library District Condominium building itself.
Secondly, my understanding is the dewatering system works on a venturi principle basis, with most of the water shown flowing into the blue container being recirculated -pumped back out through the two blue pipes on the right side. That is why there are two pipe runs on each side - a high pressure supply pipe (with small signs indicating that), and a return pipe. Only the relatively small amount of water that is actually extracted from the ground is shown going out the hole on the left of the box, and through the pipe to a sewer drain, close to Bathurst Street.
Secondly, my understanding is the dewatering system works on a venturi principle basis, with most of the water shown flowing into the blue container being recirculated -pumped back out through the two blue pipes on the right side. That is why there are two pipe runs on each side - a high pressure supply pipe (with small signs indicating that), and a return pipe. Only the relatively small amount of water that is actually extracted from the ground is shown going out the hole on the left of the box, and through the pipe to a sewer drain, close to Bathurst Street.