As part of Wellington Water’s work to improve the earthquake resilience of the water supply network across the region, the first phase of an exploratory drilling program was recently undertaken within the harbour to assess the confined freshwater aquifer present below the sea floor.  The photo above shows a jack-up ship, which operates by sailing into position and then being jacked-up off the sea bed so that it provides a stable drilling platform above the sea surface for the water well drilling rig to operate.

PDP is part of the technical team assessing the aquifer potential as a source of emergency water supply, with the work including hydrogeological field supervision, data processing and analysis, technical review and ongoing liaison with the technical and management teams.

The first phase of the project successfully identified sufficient fresh water to warrant further exploration of this potential water source with further work to start shortly.