has job zone occupation holder with job zone 3 environmental science or geoscience technician hydrologic technician 3 Hydrologic Technicians https://www.bls.gov/soc/ Collect and organize data concerning the distribution and circulation of ground and surface water, and data on its physical, chemical, and biological properties. Measure and report on flow rates and ground water levels, maintain field equipment, collect water samples, install and collect sampling equipment, and process samples for shipment to testing laboratories. May collect data on behalf of hydrologists, engineers, developers, government agencies, or agriculture. Sam Smith Oliver He 19-4044.00