I&C Technician

The Instrumentation and Controls (I&C) Technician performs skilled technical work in support of an Advanced Water Purification Facility (AWPF). This role is responsible for the installation, calibration, maintenance, troubleshooting, testing, and repair of instrumentation and control systems.

This work directly affects the reliable operation of process analyzers and sensors, (e.g., flow, level, pressure, turbidity, etc.) transmitters and loops, PLC/HMI/SCADA systems, field signal wiring and network communications, interlock/automation protecting treatment and pumping systems.

This class is a mid-level I&C assignment in an AWPF located within a wastewater treatment plant (WWTP). The AWPF is in one section of the WWTP, but access to the job site still requires driving through the WWTP. This role is responsible for the comprehensive care and enhancement of instrumentation and control systems in the AWPF. These systems include, but are not limited to, analytical sensors (TSS, NO3, NH3, DO, NH2

Cl, pH, turbidity, chlorine, conductivity), flow and pressure measuring instruments, advanced PLCs, DCS, SCADA platforms, and a variety of electronic, pneumatic, and electromechanical devices. This position ensures high system reliability for process control and regulatory compliance instrumentation, while adhering to strict safety, environmental, and regulatory requirements.

• Install, calibrate, maintain, test and repair process instrumentation and analyzers used to measure various facility parameters (e.g., flow, level, pressure, temperature, conductivity, turbidity, PH/ORP, chlorine (where applicable), and other facility-specific parameters).
• Troubleshoot and repair instrumentation faults, signal wiring issues, and control loop problems; verify instrument performance and restore them back to service.
• Perform loop checks, functional checks, and validation activities, support commissioning and system modifications.
• Support PLC/HMI/SCADA systems by verifying I/O, signals, alarms, and interlocks; coordinate software changes through approved plant processes.
• Diagnose communications failures and device integration issues involving networked instruments and control interfaces.
• Coordinate with Electrical, Mechanical, Operations, and Engineering staff to isolate problems involving instrumentation, control logic and process equipment response.
• Maintain calibration records, work orders, and equipment history in the CMMS and required logs.
• Emergency Response:
  Respond promptly to urgent system failures, power outages, or process upsets to minimize downtime and ensure water quality standards are maintained.

• The employee will follow applicable safety procedures and practices, including site-specific procedures, chemical safety practices, confined space requirements, and lockout/tagout coordination requirements as applicable to instrumentation and electrical interfaces.
• The employee performs work in accordance with applicable standards and plant requirements and maintains a clean and safe work area.
• The employee may be required to respond to emergencies and urgent operational issues outside normal working hours.

• Documented full-time industrial instrumentation experience involving calibration and troubleshooting of process instruments and analyzers in wastewater treatment, water treatment, industrial process, or similar‑duty facilities; or
• Completion of recognized instrumentation/electrical/controls apprenticeship or technical program with demonstrated industrial instrumentation experience.

• At least 5-7 years of hands‑on experience with instrumentation and controls in water treatment, chemical processing, or similar process industries; experience in advanced water purification technologies (biological nutrient reduction (BNR), membrane bioreactors (M ), reverse osmosis, UV disinfection, advanced oxidation) is highly valued.
• Technical Expertise:
  Proficiency with calibration and maintenance of analytical sensors, transmitters, actuators, and process controllers. Deep understanding of PLC programming (Allen Bradley, Siemens, Schneider), DCS operation, SCADA configuration, and industrial communication protocols (Modbus, Profibus, Ethernet/IP).
• Knowledge of:
  • Computer applications such as PLCs, HMIs and distributed control systems (DCS) used for instrument control systems
  • Principals of operations of analog, digital and microprocessor-based instrumentation such as digital transmitters, recorders, meters and DCS
  • Hand and power tools, methods and techniques, including testing, calibration and repair procedures
  • Principals for analyzing instruments and control systems’ characteristics such as those related to building ventilation and air conditioning equipment, wastewater treatment and water purification plant equipment
  • Symbols and notation standards such as those found in P&IDs and schematics relating to instrument repair
  • Mathematics such as algebra,…