THE PROJECT

Aqwest provides high-quality drinking water to over 17,000 customers in the City of Bunbury and surrounding areas.  The supplies are obtained from production bores constructed in the Yarragadee Aquifer to depths of up to 460 m.

As part of Aqwest’s strategy of increasing its water supply and shifting extraction away from the coast (to minimise salt water intrusion), two production bores were drilled at the Glen Iris Water Treatment Plant under the supervision of Rockwater in 2009 and 2019.

The bores are capable of producing 110 L/s each, but are planned to be pumped at a combined rate of 140 L/s.

Rockwater has been providing hydrogeological services to Aqwest since 2002.

Since 2002, we have completed over 10 major projects for Aqwest similar to Glen Iris.

• Geological and geophysical interpretation
• Feasibility study
• Technical specifications according to AS400-1997 standards
• Field investigation reporting
• Annual compliance reporting
• Planning for borefield development
• Groundwater modelling
• General hydrogeological advice

• Large diameter mud-rotary bores (406 mm pump chamber)
• Down-hole geophysics surveys
• Interval testing of permeability and water quality (TDS, pH, iron)
• Pumping tests
• Down-hole CCTV and Televiewer surveys