Summary: The Lake Pleasant Water Treatment Plant Lab Technician provides analytical services and monitors water treatment processes to ensure that State and Federal regulations are met. Responsibilities include measuring process control and compliance parameters, conducting sampling for regulatory compliance, and maintaining laboratory inventory and safety documentation.

Essential Duties/Functions:

  • Performs physical and chemical tests of water using apparatus and instruments including: Wet Chemistry Titration setup, pH/Fluoride meter, Turbidimeter, Total Organic Carbon Analyzer.
  • Performs microbiological tests of water using Colilert reagent for Total Coliform/E. coli Presence/Absence test and Simplate for Heterotrophic Plate Counts.
  • Determines and updates the methods and standard operating procedures used in the examination of water samples.
  • Collects water samples throughout the treatment processes including surface water, settled water, filtered water, and sends samples to contract laboratories for regulatory compliance testing.
  • Enters test results into databases and Excel spreadsheets.
  • Follows proper QA/QC procedures in order to maintain analytical quality.
  • Provides training and assistance to operators in sampling and analysis for process control and compliance with ADHS exempt method requirements.
  • Follows the Safety Program; ensures work area is neat and clean and meets general housekeeping requirements for laboratory and storage areas.
  • Updates the Laboratory Chemical Hygiene Plan on an annual basis.
  • Maintains Safety Data Sheets for all chemicals/reagents in the lab.
  • Orders standards, reagents, and laboratory supplies, and maintains chemical and consumables inventories using inventory software.
  • Troubleshoots and performs basic maintenance on laboratory instruments and equipment as needed; coordinates preventative maintenance/repairs with service personnel.
  • Responds with short notice during emergency events to perform sampling and analysis.
  • Demonstrates continuous effort to improve operations, streamline work processes and work cooperatively and jointly to provide quality seamless customer service.
  • Weekend/holiday work may be required.


Knowledge of:

  • Elementary principles, practices, and techniques of bacteriology and chemistry.
  • The operation and care of standard chemical laboratory equipment.

Additional Requirements:

  • High school diploma or GED.
  • Certification by the Environmental Protection Agency through the Arizona State Department of Health.


  • Three years of standard laboratory tests or instrumental analyses in a public health, crime laboratory, or utility chemical laboratory, including courses in chemistry, bacteriology, or a related field. Other combinations of experience and education which meet the minimum requirements may be substituted.

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