Gashaw Gebey Addis

Professional Summary

Ethiopian senior hydrogeologist with strong professional experience in groundwater source investigation, hydrogeological study and design, borehole drilling supervision, pumping test analysis, groundwater modelling, geophysical surveying, water quality assessment, well design, BOQ preparation, tender documentation, WASH governance, and water supply project management. He has worked with Amhara Design and Supervision Works Enterprise and World Vision Ethiopia, contributing to groundwater studies, drilling supervision, school water supply, rural water supply, thermal water assessment, and World Bank-supported water projects across Ethiopia. His career combines field hydrogeology, practical drilling supervision, technical modelling, project leadership, and community-focused WASH service delivery, making him a valuable professional for groundwater development and water supply programs in Africa and beyond.

Key Expertise

Major Projects and Contributions

• Hydrogeologist – World Vision Ethiopia Water4Life+ Project, Dibatie District
  Serves as Hydrogeologist for World Vision Ethiopia, supporting water well study, design, drilling supervision, site selection, stakeholder mobilization, drilled borehole facilitation, river gravel selection for packing, and WASH governance activities in Dibatie District.
• Senior Hydrogeologist and Project Manager – Amhara Design and Supervision Works Enterprise
  Worked with Amhara Design and Supervision Works Enterprise as drilling supervisor geologist, study and design expert, senior hydrogeologist, and project manager, leading groundwater potential assessment, study and design, drilling, pumping test, and water supply projects.
• Metema–Chilga Groundwater Potential Assessment Project
  Contributed to groundwater potential assessment for the Metema–Chilga area, including hydrogeological study, groundwater source investigation, geological and geophysical interpretation, and technical input for water supply development.
• Groundwater Source Investigation for Seven Towns in Somali Regional State
  Participated in groundwater source investigation for seven towns in the Somali National Regional State, supporting water source identification, hydrogeological assessment, and groundwater development planning.
• Drilling Supervision and Groundwater Source Investigation – Dibatie Woreda
  Supported drilling supervision and groundwater source investigation in Dibatie Woreda under World Vision Ethiopia Water4Life+ project activities, with field coordination, borehole facilitation, and WASH-related support.
• Debre Tabor Town Groundwater Source Investigation and Existing Well Performance Assessment
  Worked on groundwater source investigation, site selection, and analysis of existing well performance for Debre Tabor Town water supply, contributing to improved groundwater development and urban water supply planning.
• Assosa Town Groundwater Source Investigation Project
  Contributed to groundwater source investigation for Assosa Town water supply in Benishangul Gumuz Regional State, including hydrogeological assessment and groundwater development support.
• Mota Town Groundwater Source Investigation Project
  Served as project manager and senior hydrogeologist for Mota Town groundwater source investigation, including geological mapping, hydrological analysis, geophysical surveying, hydrogeological delineation, BOQ preparation, and specification of proposed water source sites.
• Wanzaye Thermal Water Source Assessment Project
  Served as project manager and hydrogeologist for Wanzaye Thermal Water Source Assessment, conducting geological mapping, structural tracing, water sampling, in situ pH, EC, temperature and TDS testing, hydrological data interpretation, water quality analysis, and thermal aquifer mapping.
• Ethiopian School Water Supply Project – 342 Schools in Amhara Region
  Worked as hydrogeologist for the Ethiopian School Water Supply Project covering 342 schools in Amhara Region, financed under the Ministry of Education One WASH National Program, contributing to groundwater-based school water supply development.
• Groundwater Study and Design Projects in Amhara, Benishangul Gumuz, and Somali Regions
  Conducted groundwater study and design work across Amhara, Benishangul Gumuz, and Somali Regional States, including vertical electrical sounding, geological mapping, hydrological analysis, groundwater conceptual modelling, water quality interpretation, groundwater prospect mapping, BOQ preparation, and tender document preparation.
• Hydrogeological Software and Technical Analysis Practice
  Applies professional tools and software including ArcGIS, AutoCAD, MODFLOW, Surfer, Strater, Global Mapper, PCI Geomatica, Aquifer Test, AquaChem, Oasis Montaj, IPI2Win, IPI_res3, Google Earth, ENVI, Microsoft Office, and CROPWAT for groundwater assessment, modelling, mapping, and water resources analysis.
• Awards and Professional Recognition in Groundwater Investigation and Drilling Supervision
  Received professional awards and certificates related to drilling and supervision performance, water balance estimation, groundwater modelling, GIS application for groundwater investigation, well field delineation, existing well performance analysis, Assosa town groundwater source investigation, and participation in geoscience for societal development.