Of geological and hydrologic technicians is projected to growĩ percent from 2020 to 2030, about as fast as the average for all occupations.Ībout 2,300 openings for geological and hydrologic technicians are projected each year, on average, over the decade. The median annual wage for geological and hydrologic technicians was $50,630 in May 2020. Geological and hydrologic technicians also receive on-the-job training. Some jobs may require a bachelor’s degree. Geological and hydrologic technicians typically need an associate’s degree or 2 years of postsecondary training in applied science or a science-related technology. How to Become a Geological or Hydrologic Technician Most geological and hydrologic technicians work full time. Geological and hydrologic technicians work in offices, laboratories, and the field. Geological and hydrologic technicians support scientists and engineers in exploring, extracting, and monitoring natural resources. What Geological and Hydrologic Technicians Do Quick Facts: Geological and Hydrologic Technicians Please enable javascript to play this video.