Job Description:

• 1) Tends equipment, such as grinders, leachers, filters, pressers, and evaporators that recover gold, silver, selenium, and other minerals from impurities: Grinds impure slag or ore in ball mill, and mixes slag with water to form slurry.

• 2) Turns valves and starts pumps to force mixture into leaching tanks.

• 3) Starts agitators and adds chemicals to leach combined solutions.

• 4) Starts pumps to force leached solution into settling tanks, and installs orifices to control rate of flow of sediment and liquids to and from settling tanks to remove liquid.

• 5) Feeds settled solution through rotary-drum filters, and presses filtered slime in press.

• 6) Boils selenium residue to remove moisture for barreling.

• 7) Obtains and weighs samples of slimes during process, using container and platform scales, and delivers samples to laboratory for analysis.

• 8) Drains and cleans tanks, wire screens, inflow pipes, and equipment with water hose.

• 9) May be designated according to mineral recovered as Selenium-Plant Operator.