Katie Wolohan

Katie Wolohan

Katie has more than 12 years of environmental consulting experience and assists clients with industrial and municipal water and wastewater treatment, water reuse, and environmental compliance and permitting. She works with clients to navigate water and wastewater treatment challenges and options from conceptual design and bench and pilot testing through full-scale system start-up. Katie has assisted with the evaluation, design, and implementation of several water treatment systems, including a specialized acid-recovery ion-exchange system, an advanced oxidation process system for the removal of 1,4-dioxane from drinking water, and multiple per- and polyfluoroalkyl substance (PFAS) treatment systems.



Senior Environmental Engineer


Professional Engineer (IA, MI, MN, UT)


BS, Michigan Technological University


Barr Engineering Co.
4300 MarketPointe Drive
Suite 200
Minneapolis, MN 55435
Phone: +1 952-842-3594

Related projects

Permitting and compliance services for oilseed-processing plant
Environmental support for post-fire cleanup at industrial facility
Preliminary feasibility study for PFAS-related water quality concerns