Katie Turpin-Nagel

Multiple bios
MS, Environmental Engineering

Katie has more than 10 years of experience in water resources and environmental engineering. She specializes in water quality treatment and management, watershed and in-lake water quality modeling, stormwater planning and management, green infrastructure design, and hydrologic and hydraulic modeling. Katie has completed lake water quality studies for over 30 shallow and deep lakes. She has experience in assessing water quality monitoring data, performing watershed modeling, calibrating zero- and one-dimensional in-lake water quality models, and designing in-lake and watershed best management practices (BMPs). She also has a special interest and technical knowledge related to harmful algal bloom (HAB) analyses and mitigation.

Lake management plans; August 2026; CMM4
Katie has more than 10 years of experience in water resources and environmental engineering. At Barr, she specializes in water-quality analysis and management, stormwater planning and management, and green infrastructure design. Her experience ranges from performing water-quality data analysis and watershed and in-lake modeling calibrations to designing green infrastructure and in-lake best management practices (BMPs). She also manages a watershed district’s water-quality and ecological lake monitoring program and leads the harmful algal bloom service initiative at Barr.

Relevant project experience:

• Lucy, Ann, Susan, Mitchell, and Red Rock lake and watershed management plan; RPBCWD; modeler
• SWWD lakes and creek management plan; SWWD; modeler and task manager
• Anderson Lakes protection strategy study; NMCWD; project manager
• Aquatic invasive plant species management program; NMCWD; project manager and engineer
• Lake Nokomis and Cedar Lake cyanobacteria bloom mitigation project; MPRB; project engineer