Description
QUALIFICATION AND EXPERIENCE• Degree : MSc (or equivalent formal qualification) in Hydrogeology or similar discipline.• Fully aware and experienced of all applicable Tanzanian local / regional regulations, codes and standardsrelated to Water Sourcing Works. (including Ministry of Water and Water Basins regulations and rules)• Minimum of 15 years’ experience as a hydrogeologist, including groundwater resources assessment, field investigations, knowledge of geophysical surveys,• Supervision of borehole drilling• Interpretation of pumping test data• Knowledge of groundwater occurrence in hard rock aquifers• Experience in writing technical reports and presenting the results• Good interpersonal and communication skills. Good motivational skills.• English as mother tongue or Fluent in English (speaking and with excellent writing skill)ACTIVITIESFor borehole water sourcing works & drilling operations the Hydrogeologist shall be present on the drill site and stay with the drill team throughout the drilling operations or as required. Main responsibilities will include:• Act as Company supervisor and technical expert on site during borehole drilling and associated activities• Ensure that the borehole construction and completion work is carried out as specified in the contract between Contractor and Company, and as specified in the engineering designs• Ensure that all measurements and observations are systematically and accurately taken, recorded and submitted according to the contract between the Contractor and Company• Keep updated records of the drilling works and prepare brief progress reports. Activities at different stages of the water sourcing works / drilling operations will include:• Check materials supplied by the Contractor and ensure that they conform to the relevant specifications.• Ensure that the rig is positioned exactly at the agreed location and away from any potential hazards such as overhead electrical cables.• Monitor verticality checks, the drilling depth, the depth penetration rate and the collection of drill samples• Describe each stratum encountered during drilling, including but not limited to thickness, depth below ground level, and location of samples recovered• Evaluate information collected during drilling, and correlate with available reconnaissance/geophysical data• Help decide when drilling should stop, which will depend on the information gathered in the course of drilling, and if well completion should proceed• Provide information and help finalize detailed engineering design of the borehole, e.g. the depth interval(s) to be screened, the gravel pack depth interval, etc• Ensure that the borehole installation by the Contractor conforms with the final approved design.• Ensure that borehole development and pumping tests are undertaken according to the specifications in the drilling contract, and/or advise on any alterations to suit individual boreholes.• Analyse the data collected from the pumping test and advise if this indicates the borehole is adequate to serve as a viable water supply based on the site requirements. Make recommendations on the pumping regime of the borehole.• Ensure that the Drilling Contractor collects water samples and undertakes water quality testing as specified in the drilling contract.