Levi Ochieng

Senior Geochemist
SRK Johannesburg
265 Oxford Road 2196 Illovo, South Africa PO Box 55291 2116 Northlands
Tel: 
+27 11 441 1111
Fax: 
+27 11 880 8086

Specialisation:

  • Geochemical characterisation studies,
  • Source term assessment studies,
  • Geochemical modelling focused on thermodynamic study of metals speciation and equilibriums for predictive purposes,
  • Baseline surface and groundwater monitoring,
  • Mobility assessment of heavy metals in industrially polluted land,
  • Analytical method development,
  • Slurry nebulisation ICP-OES for determination of base metals,
  • PGMs and gold in different matrices,
  • Speciation analysis of colloidal silica in acidic (mine) conditions.

Expertise:

Levi has more than 8 years’ consulting experience in environmental geochemistry. Key experience includes laboratory- and field-scale assessment of mine water chemistry, ARDML prediction and geochemical modelling, preparation of ARDML studies from pre-feasibility stage through to closure planning, and water quality baseline studies. Geochemical modelling experience includes waste rock and tailings modelling using PHREEQC. He has recently been involved in contaminated land assessment studies at SRK. Before he joined SRK he was a Specialist Geochemist with Golder Associates Africa. Levi has worked on mining projects in Turkey, East Africa (Tanzania), Southern Africa (RSA, Lesotho, Namibia and Zambia) and Central Africa (DRC). His expertise include:

  • Development of geochemical sampling strategy and sampling plan/programmes;
  • Selection and development of suitable technique for analysis of the geochemical samples;
  • Statistical analysis of the geochemical data and integration with other specialist studies;
  • Geochemical modelling focused on thermodynamic study of metals speciation and equilibriums for predictive purposes;
  • Mobility assessment of metals and metalloids in mining and related industries;
  • Contaminated land assessment.

Levi is a registered professional scientist with SACNSP

SRK Africa