Ze-michael Yosef Hailu

Professional Summary

Ze-michael Yosef Hailu is an Ethiopian Senior Hydrogeologist Specialist based in Addis Ababa, with 10 years of high-level professional experience in groundwater resource assessment, hydrogeological investigation, groundwater modelling, GIS and remote sensing, geophysical survey, drilling supervision, pumping-test analysis, Managed Aquifer Recharge, climate-resilient WASH, and urban and rural water supply infrastructure. He currently serves within Ethiopia’s Ministry of Water and Energy as a senior technical specialist for the Horn of Africa Groundwater for Resilience Project, a major World Bank-supported initiative focused on strengthening water security in vulnerable and drought-prone regions. His work combines rigorous field investigation, quantitative groundwater science, digital geospatial analysis, technical design review, drilling quality control, pumping-test verification, and institutional water supply planning. He has supervised and reviewed large numbers of deep wells, supported Rural Piped System water supply schemes, contributed to groundwater monitoring systems, evaluated consultant studies and designs, and participated in major national and regional groundwater resilience initiatives. Beyond technical implementation, he has strong experience in contract governance, proposal evaluation, Terms of Reference preparation, tender review, training of regional experts, and the translation of scientific hydrogeological data into practical WASH infrastructure and water security decisions. His profile is especially strong in climate-resilient groundwater development, groundwater suitability mapping, advanced geospatial analysis, aquifer characterization, Managed Aquifer Recharge, and the modernization of groundwater management through Earth Observation, cloud computing, and machine learning tools.

Key Expertise

Major Projects and Contributions

• Horn of Africa Groundwater for Resilience Project – Water Supply Implementation Team
  Serves as Senior Hydrogeology Specialist for the World Bank-supported Horn of Africa Groundwater for Resilience Project within Ethiopia’s Ministry of Water and Energy. His responsibilities cover action-plan preparation, Terms of Reference, EoI and proposal evaluation, groundwater development studies and designs, MAR-related strategies, drilling quotation preparation, technical oversight, compliance monitoring, supervision of test wells and deep production wells, Rural Piped System commissioning, and groundwater monitoring through data logging systems.
• HOAGWRP Group-3 Groundwater Potential Assessment and Development
  Acted as Senior Hydrogeologist Specialist and focal person for Group-3 groundwater potential assessment and development works covering Lower Omo, Metem Chilga, Shone, Yergalem, and Kafta Humera areas. The assignment involved multi-site coordination, groundwater potential assessment, reconnaissance hydrogeological study, feasibility study, contract administration, and supervision of drilling test wells.
• HOAGWRP Design Review and Pumping-Test Verification for Medium-Sized Rural Piped Systems
  Reviewed and verified groundwater resource assessments, detailed engineering designs, and pumping-test data prepared by consultants for medium-sized Rural Piped Water Supply systems across Somali Region, South West Ethiopia, Benishangul-Gumuz, and Afar. The work included technical supervision, data-integrity review, consultant-output verification, and approval support for groundwater-based RPS infrastructure.
• Eastern Nile Basin Groundwater Resource Assessment – ENTRO / Nile Basin Initiative
  Contributed to the Eastern Nile Basin Groundwater Resource Assessment and situational analysis through the Eastern Nile Technical Regional Office under the Nile Basin Initiative. His work included groundwater and surface-water data collection, geospatial analysis, groundwater suitability mapping, methodological support, technical reporting, publication support, and presentation of findings for regional groundwater management.
• GIS-Based Suitability Mapping of Managed Aquifer Recharge in Diredawa Catchment
  Authored research on GIS-based suitability mapping of Managed Aquifer Recharge in the Diredawa Catchment, Eastern Ethiopia. This work supports climate-resilient groundwater storage planning by integrating catchment-scale spatial criteria, hydrogeological interpretation, and decision-support mapping for MAR implementation in water-stressed regions.
• Dillo Rural Water Supply Project – Groundwater Source Suitability Mapping
  Designed and executed hydrogeological investigation and groundwater source suitability mapping for the Dillo Rural Water Supply Project in Borena Zone, Oromia. The work included groundwater-level assessment, water-quality considerations, geophysical survey using electromagnetic methods, integration of hydrogeological and geophysical datasets, well-design recommendations, and preparation of Bill of Quantities for water supply development.
• Mambuk Town Water Supply and Sanitation Project
  Conducted integrated hydrogeological and geophysical investigation for the Mambuk Town Water Supply and Sanitation Project in Benishangul-Gumuz Region. The assignment involved VES and 2D Electrical Resistivity Tomography, geological mapping, fracture-zone interpretation in basement terrain, water-quality evaluation, drilling specification preparation, and technical BoQ and tender-document support.
• Mekane Selam Town Water Supply Project – Groundwater Mapping and Drilling Supervision
  Spearheaded groundwater suitability mapping, GIS and remote-sensing analysis, geophysical exploration, and technical drilling supervision for two deep production wells for Mekane Selam Town Water Supply Project in Amhara Region. He supervised lithological logging, drilling-program monitoring, casing and filter-pack installation, constant-rate and recovery pumping tests, and sustainable-yield assessment.
• Kelwan Town Water Supply Project – Afar Region
  Provided senior hydrogeological supervision for the Kelwan Town Water Supply Project in Afar Region. The work focused on construction of high-capacity deep production wells, drilling monitoring, lithological logging, screen and casing installation, well development, pumping-test analysis, pump-setting recommendation, and long-term sustainability of the town water source.
• West Showa and South West Shewa Small-Scale Irrigation Borehole Project
  Monitored technical drilling construction of five production boreholes across four districts for a small-scale irrigation initiative in Oromia. The assignment supported agricultural productivity and climate resilience through lithological logging, fractured volcanic aquifer identification, well assembly oversight, screen placement, step-drawdown and constant-rate pumping tests, sustainable-yield estimation, and technical handover certification.
• Ethiopian Civil Service Commission Deep Well Water Supply Project
  Served as Ministry technical lead for drilling supervision of a deep production well for the Ethiopian Civil Service Commission. The work included contractor monitoring, compliance control, lithological logging, screen and casing placement, well development, step-drawdown and constant-rate pumping tests, hydraulic-performance evaluation, final discharge certification, and technical completion reporting.
• Advanced Groundwater Investigation and Pumping-Test Analysis Training
  Directed technical capacity-building training for Benishangul-Gumuz regional water professionals. The program covered Earth Observation data analysis using Google Earth Engine and Python, groundwater suitability mapping, overlay and sensitivity analysis, pumping-test analysis using AquiferTest Pro, and geological modelling for well design using RockWorks and Strater.
• Electromagnetic Water Detector Geophysical Techniques Training
  Led specialized training on electromagnetic induction methods and their hydrogeological applications for water professionals. The training covered equipment setup, calibration, troubleshooting, supervised field practice, geophysical surveying, real-time data collection, preliminary interpretation, and practical workflows for groundwater exploration.
• Torhayloch Comprehensive Specialized Hospital Water Supply Project
  Conducted groundwater source investigation and full-scale drilling supervision for an independent water supply source serving a major specialized hospital. The assignment included site-specific hydrogeological assessment, geophysical survey, well siting, lithological logging, drilling-fluid monitoring, casing and screen installation, and pumping tests to confirm sustainable yield for 24/7 medical services.
• JEMO-1 Condominium Groundwater Source Investigation
  Directed hydrogeological mapping and geophysical survey for groundwater source investigation in a high-density urban residential setting. The assignment involved VES interpretation, volcanic stratigraphy characterization, identification of fractured water-bearing zones, geological and structural synthesis, well-design recommendations, and estimated yield assessment for urban residential water supply.
• Asosa Town Water Supply Project – Groundwater Suitability Mapping and Geophysical Investigation
  Led groundwater suitability mapping and geophysical investigation for Asosa Town in Benishangul-Gumuz Region under the One WASH National Program. The project addressed water scarcity in complex Precambrian basement terrain through GIS, remote sensing, VES investigation, borehole-site selection, drilling supervision for two deep production wells, well development, yield testing, and support for detailed design and BoQ preparation.
• LIFE-AR Water Supply Project – Climate Adaptation and Technical Training
  Directed groundwater investigation and delivered technical training under the LDC Initiative for Effective Adaptation and Resilience water supply project. The assignment strengthened adaptive capacity by identifying sustainable water sources, supporting climate-resilient water supply systems, and training project participants in groundwater suitability mapping and geophysical investigation.
• Harari Region Rural WASH Water Supply Project
  Directed hydrogeological and geophysical investigation for rural WASH communities in Harari Region, including Diretyra, Gelmshira, and Au-umer. The work included VES survey, aquifer-zone delineation, groundwater source suitability mapping, drilling supervision of two deep wells, lithological logging, well-design implementation, and pump testing to confirm sustainable rural water supply.
• SNNPR Hamer Bena Water Supply Project – Supervision of 14 Boreholes
  Directed technical monitoring and drilling supervision for a 14-borehole climate-resilient water supply network in South Omo Zone. The project supported pastoralist and rural communities through contractor oversight, CR-WASH standards compliance, lithological logging, well assembly design, casing and screen installation, pumping-test coordination, and sustainable-yield assessment.
• Somali Region Togo-Wuchale Town Water Supply Project
  Directed hydrogeological site selection, geophysical investigation, and drilling supervision for deep production wells for Togo-Wuchale Town Water Supply Project under CR-WASH. The assignment involved 250-meter-class deep wells, rig-operation oversight, lithological logging, screen-placement decisions, well development, and pumping tests to establish climate-resilient water supply for a drought-prone border town.
• Somali Region Guradamole Multi-Village Water Supply Project
  Conducted groundwater investigation and geophysical site selection for a multi-village water supply system in the drought-prone Guradamole area. The work included identification of deep aquifer targets, drilling supervision of a 250-meter production well, lithological logging, drilling-fluid monitoring, screen placement, casing installation, and pumping-test analysis for safe sustainable yield.
• Bati Town and Mohamed Rural Kebele Multi-Village Water Supply Project
  Conducted hydrogeological assessment and geophysical investigation for a climate-resilient multi-village water supply system serving Bati Town and Mohamed rural kebele. The work involved drilling supervision of three deep production wells, borehole logging, casing and screen design, pumping tests, and sustainable-yield analysis for urban and rural water service reliability.
• National WASH Inventory-2 Coordination
  Coordinated the web-based National WASH Inventory-2 using the COSMO platform. The assignment included configuration of digital survey tools, cloud-based data management, technical support to enumerators, validation of national WASH asset data, infrastructure-gap analysis, progress reporting, and data visualization for federal water-sector planning.
• Afar Region Dalifage and Dubti Water Supply Projects
  Worked on groundwater investigation and drilling supervision in the Afar lowlands, including Dalifage Town and Dubti Woreda rural kebeles. The assignments involved deep-well site selection, geophysical investigation, drilling supervision, lithological logging, well assembly design, saline-horizon protection, well development, and pumping-test certification under arid lowland hydrogeological conditions.
• Groundwater Mapping for Climate-Resilient WASH in Bale and Borena
  Contributed to groundwater mapping for climate-resilient WASH in arid and semi-arid areas of Ethiopia, including Bale and Borena. The work combined GIS, remote sensing, structural geological analysis, groundwater potential assessment, collaboration with international experts, and identification of deep climate-resilient aquifers for pastoralist and drought-prone communities.
• Legetafo Hydrogeological and Geophysical Investigation
  Served as Site Geologist for the Legetafo Area Hydrogeological and Geophysical Investigation for deep-well siting. The work involved drilling supervision, field-based hydrogeological support, technical quality control, safety awareness, and adherence to project specifications during groundwater source investigation.
• Freelance Hydrogeology and Industrial Water Source Consultancy
  Provides freelance hydrogeology services through groundwater source investigation, geophysical survey, drilling supervision, well inspection, and rehabilitation monitoring for real estate, mixed-building, hotel, industrial, brewery, institutional, and urban water supply clients, including MAYA Real Estate, MOAN Real Estate, CROWN 40/60 Condominium, HEINEKEN Breweries, ZEBIDAR Breweries, Ovid Real Estate, Ethiopian Meteorological Agency, Terunesh Beijing Hospital, Addis Ababa Riverside Project, and other private and institutional clients.
• Publication and Conference Contribution on Managed Aquifer Recharge
  Prepared and presented work on GIS-based suitability mapping of Managed Aquifer Recharge in the Diredawa Catchment, Eastern Ethiopia, including contribution to the Second Pan African University International Conference in Tlemcen, Algeria. The work links groundwater science, GIS-based decision support, MAR, climate resilience, and sustainable aquifer management.