Rockwater

Senior Staff

Dr Roger Passmore
  • Dr Roger Passmore
  • Principal, founded Rockwater in 1974 following previous experience as a hydrogeologist with the Geological Survey of Western Australia, Anaconda Inc., and McPhar Geophysics Pty Ltd. He has an extensive knowledge of the hydrogeology of Western Australia and has worked on water supply, mine dewatering, and other projects throughout Western Australia, other states and overseas. Dr Passmore conducts field investigations, project management, aquifer modelling, and technical assessments.
Mr. Phil Wharton
  • Mr Phil Wharton
  • Principal, joined Rockwater in 1982 and has over 25 years professional experience in hydrogeology. Mr Wharton is widely experienced in water supply and mine dewatering studies and is one of the foremost groundwater modellers in Western Australia. His experience also includes projects in New Zealand (where he managed all Rockwater projects), Laos, and Indonesia.
Mr. Grant Bolton
  • Mr Grant Bolton
  • Principal, has been with Rockwater since 1980 following several years experience with major mining companies. Mr Bolton is widely experienced in applied hydrogeology; including groundwater geophysics, artesian bore design and construction, aquifer testing, and groundwater sampling. He has designed and supervised the installation of production bores to depths greater than 1,000 m. Mr Bolton has carried out hydrogeological investigations and managed many hydrogeological projects throughout Western Australia over the past 24 years. He also manages all down-hole and surface geophysical services provided by Rockwater.
Dr Peter de Broekert
  • Dr Peter de Broekert
  • Principal Hydrogeologist, joined Rockwater in early 2006, following a doctoral study of the sedimentology of palaeochannels in the Kalgoorlie area while at the CSIRO, and the design and implementation of dewatering projects in wheatbelt towns for salinity control while at the WA Dept of Agriculture. Apart from continuing to conduct hydrogeological investigations for rural townsite dewatering, Dr de Broekert manages and participates in projects relating to groundwater resource assessment and development, mine dewatering, and soil and groundwater contamination.
Mr. John Moncrieff
  • Mr John Moncrieff
  • Principal Hydrogeologist, joined Rockwater in 2003 and has over 25 years experience in project design, implementation and management in a wide variety of hydrogeological environments. He has particular expertise in groundwater resources assessment and groundwater supplies in urban, rural and mining areas; design and implementation of mine dewatering schemes; investigation of groundwater contamination; environmental impact assessment with respect to groundwater and surface water; and groundwater licensing.
Mr. Nick Evelegh
  • Mr Nick Evelegh
  • Principal Environmental Scientist, has experience in various aspects of environmental management within the mining and construction industries. Nick has designed and managed a range of projects with particular focus on environmental impact assessment (EIA), botanical surveys, regional rare flora survey work and rehabilitation assessment/monitoring programs. He has undertaken extensive vegetation mapping and baseline survey work throughout Western Australia.