Stewart has been associated with the metal finishing/wastewater treatment industry for nearly 40 years; beginning as a wastewater treatment specialist in the Ohio Air National Guard. He became a licensed Industrial wastewater operator in Ohio while working as a chemical technician and has been responsible for various electroplating, hot black oxide, vapor degreasing, and electro-polishing process lines over the years. Stewart continues to expand his knowledge and expertise in metal finishing and wastewater treatment and is currently pursuing his wastewater treatment plant operations specialist certification from Sacramento State University.