- Valero (Hartley, IA)
- …and willing to work on-site, in-person at the Valero Hartley Ethanol Plant, required. *Valero's pre-employment process includes successful completion of a ... click on the following link to view what the Process Operator job involves on a day...check and pre-employment drug screen.* *About Valero Renewables - Hartley * Valero's Hartley ethanol plant… more