Glenn graduated from Michigan State University in 1990, with a degree in Civil and Environmental Engineering. He started working in the water and wastewater fields as a intern in 1988. After graduating MSU he joined McNamee Porter & Seeley as a design engineer working on drinking water treatment and distribution, and wastewater treatment and collection projects. Glenn also worked on the Rouge River National Wet Weather Demonstration Project which was a massive EPA funded program focused on improving the water quality within the Rouge River watershed, which encompasses areas of three counties, and 48 communities including metro Detroit. This demonstration program led to a profound improvement of the Rouge River water quality, and paved the way for many watershed improvement and CSO projects that followed across the country.