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Ann Quenzer

Principal Engineer

What drives Ann is her passion for working collaboratively with people to solve problems, benefiting many in her community. She leverages her expertise to provide business development guidance and project management for sanitary, storm, and combined systems. Ann’s team looks to her as a modeling expert.


Ann was born and raised in South Dakota. Now her home for a couple decades, Boulder, Colorado, is where she lives with her two daughters, Abby and Nadia, and dog Daisy. When not in the office, she spends most of her time outdoors camping, cycling, or cross-country skiing.

How does great engineering work? When people communicate and solve problems together.

On your bookshelf: Edgar Allen Poe, Alfred Hitchcock, and Stephen King

Favorite food/beverage: M&Ms/Whiskey

Favorite quote: “It may be s**t to you, but it’s my bread and butter.” – Harlan Quenzer (my dad, who was a wastewater treatment plant design engineer)

Murraysmith Since


Office Location

Louisville, CO


Professional Engineer – OR & WA


MS, Civil Engineering, University of Texas Austin

BS, Civil Engineering, South Dakota State University