The GVRD began upgrading the reservoirs to new seismic codes in the 1990’s. One of the first reservoirs upgraded required the installation of DCP tie-down anchors beneath the roof of the existing reservoir, in a low-overhead environment. SWC now has two drilling rigs; one diesel, and one electric, capable of drilling fully-cased anchor holes. Height restrictions of 9’ and door widths of 40” are possible.

Vancouver Heights Reservoir Seismic Upgrade Vancouver Heights Reservoir Seismic Upgrade