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Title:  Water Treatment Operator I

Requisition ID:  8053

Green Valley, AZ, US, 85622

Category:  Operations

Freeport-McMoRan is a leading international mining company with headquarters in Phoenix, Arizona. We operate large, long-lived, geographically diverse assets with significant proven and probable reserves of copper, gold, and molybdenum. The company has a dynamic portfolio of operating, expansion and growth projects in the copper industry. Freeport-McMoRan is one of the world’s largest publicly traded copper producers, the world’s largest producer of molybdenum and a significant gold producer. We have a long and successful history of conducting our business in a safe, highly efficient and socially-responsible manner.


We have the assets, the talent, the drive and the financial strength to provide attractive and rewarding careers of our employees. We encourage you to take the time to explore the opportunity to advance your career at Freeport-McMoRan.


Under supervision performs duties related to the safe operation of a water treatment process and/or facility at a skilled level.


  • Take and test water samples at various sampling locations to monitor water treatment process and different chemical levels therein; make adjustments as needed
  • Inspect and monitor well pumps, booster pumps, water storage tanks and other machinery and processes of the Water Treatment System
  • Record and document operation of plant during assigned shift in log books, electronically and/or on forms; calculate and record water production and chemical usage
  • Maintain chemical inventory for water treatment process
  • Maintain elevations on all water pools
  • May operate a sludge densification plant: run clarifiers, monitoring neutralization tanks, adding chemicals as needed
  • May calibrate pH and turbidity instruments
  • Operate computer and/or manual controlled equipment starts and stops
  • Ensure proper operations of automated pumps and motors
  • Operate manual pumps, motors and valves
  • May operate sodium hydroxide, sulfuric acid and (possibly) chlorine gas monitoring and safety equipment
  • Adjust the flow of water and chemicals through the plant as needed
  • Communicate equipment deficiencies to maintenance department
  • May assist with, or perform emergency repair and maintenance of treatment equipment, pumps, motors, sensing devices, instrumentation, and other equipment
  • Perform other duties as required

Minimum Qualifications

  • Six (6) months of experience in Water Treatment Plant operations, Water Distribution Systems and related equipment 
  • May be required to attend training and obtain a water treatment or related licenses for the state in which the site is located 
  • Knowledge of proper emergency notification procedures 
  • Knowledge of pH and turbidity and calibrating pH and turbidity instruments 
  • Knowledge of chemicals associated with water treatment process, depending on site location these may include: lime, sulfuric acid, polymer, etc.


  • High School diploma or GED 


  • Criteria/Conditions
  • Ability to understand and apply verbal and written work and safety-related instructions and procedures given in English 
  • Ability to communicate in English with respect to job assignments, job procedures, and applicable safety standards 
  • Must be able to work in a potentially stressful environment 
  • Employee may be required to work in environments that may include exposure to extreme temperatures, humidity, dust, noise, fumes, and gasses 
  • While performing the duties of this job, the employee is required to stand, sit, demonstrate manual dexterity, climb stairs and ladders, work on uneven work surfaces and work on elevated platforms 
  • Frequently may be required to lift up to fifty (50) pounds during the course of the work day 
  • May be required to work a non-standard schedule which may include shift work (other than day shift) in a 24/7/365 operation 
  • Personal protective equipment is required when performing work in a mine, outdoor, manufacturing or plant environment, including hard hat, hearing protection, safety glasses, safety footwear, and as needed, respirator, rubber steel-toe boots, protective clothing, gloves and any other protective equipment as required 
  • Freeport-McMoRan promotes a drug/alcohol-free work environment through the use of mandatory pre-employment drug testing and on-going random drug testing as allowed by applicable state laws


Freeport-McMoRan has reviewed the jobs at its various office and operating sites and determined that many of these jobs require employees to perform essential job functions that pose a direct threat to the safety or health of the employees performing these tasks or others.  Accordingly, the Company has designated the following positions as safety-sensitive:

  • Site-based positions, or positions which require unescorted access to site-based operational areas, which are held by employees who are required to receive MSHA, OSHA, DOT, HAZWOPER and/or Hazard Recognition Training; or 
  • Positions which are held by employees who operate equipment, machinery or motor vehicles in furtherance of performing the essential functions of their job duties, including operating motor vehicles while on Company business or travel (for this purpose “motor vehicles” includes Company owned or leased motor vehicles and personal motor vehicles used by employees in furtherance of Company business or while on Company travel); or
  • Positions which Freeport-McMoRan has designated as safety sensitive positions in the applicable job or position description and which upon further review continue to be designated as safety-sensitive based on an individualized assessment of the actual duties performed by a specifically identified employee.

Equal Opportunity Employer/Protected Veteran/Disability

Nearest Major Market: Tucson

Job Segment: Architecture, Chemical Engineer, Materials Science, Wastewater, Water Treatment, Engineering, Science

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