Summary
Work includes filter beds 1 & 2 media replaced, under drain piping, lateral piping, surface wash piping, surface wash arms and four flap gates, all existing and new metal components epoxy coated; rehabilitation and upgrade of the infiltration system at the provincial water plant. The work will include complete removal and replacement of filter media, underdrain systems, surface wash components, piping, valves, brackets, bolts, and appurtenant hardware; remove existing filter media and replace;media layering to include washed rotary surface wash sand, intermediate and high- density sand, and multiple layers of graded support gravel. See attached file.