The class of Water Quality Control Systems Technician is the journey level class in this series, and, under general supervision, maintains and repairs pneumatic, chemical, electric, and electronic components, analog and digital networks and systems, analysis equipment, computer control equipment's including computers and computer peripherals, and telemetry equipment used in process instrumentation and control systems. NOTE: If you meet the minimum qualifications (via the information you provided on your application and requested documentation), your exam score (based on your supplemental questionnaire responses) places you within the reachable ranks on the resulting eligible list and you are invited to interview; you will be asked to expand on, clarify, and/or provide examples to support the selections you made on this exam (supplemental questionnaire).