Under direct supervision of the STL Director and/or Laboratory Researcher, the Principal Laboratory Technician position is primarily responsible for the preparation, extraction/digestion, and analysis of soil samples (approximately 8000/year) for plant nutrients, operation and maintenance of ICP-OES analytic equipment, quality control practices, conversion and import of data values to the Soil Testing Laboratory Information Management System (LIMS) database. The Rutgers Soil Testing Laboratory (STL) is a service unit of Rutgers Cooperative Extension that performs chemical analysis of soils, plant tissue, and water for the public (including farmers, landscape professionals, and residential clientele, etc.) and university research personnel.