PSM provides specialised design and investigation services for engineering in rock, soil and water. The company was established in 1993 and has substantial experience in the fields of engineering geology, mining, rock mechanics, soil mechanics, hydrology and hydrogeology. The company comprises a group of thirty three professional engineers and geologists, as well as associated support staff, operating from offices in Sydney, Brisbane, Perth and Terrigal.

PSM has earned a reputation for innovative and practical engineering design and aims to be generally acknowledged amongst clients and peers as eminent in the field of geotechnical engineering and hydrology. Recent examples of our successful investigation and design work include the Thredbo inquest on behalf of the Coroner, support design for the Eastern Distributor road tunnel in Sydney, the remediation design of the Melbourne City Link tunnels, and the Nakan Dam, which is the highest rock-fill dam in Indonesia. PSM is also design consultants for many major mines, including Hammersley Iron, Ernest Henry, Waihi, Olympic Dam, Kelian, Batu Hija and McCraes.

Particular areas of expertise include:

• open pit mines and slope stability,
• water supply and tailings dams,
• investigation and design of tunnels and underground mines,
• waste dumps and haul roads,
• catchment and river hydrology,
• numerical analysis,
• foundations and retaining structures,
• hydraulic structures and water management,
• dewatering, depressurisation and grouting.

Our focus is on interpretation, analysis and design using the skills within the disciplines of Geology, Hydrology, Civil and Mining Engineering.