Katelynn Sallack

Malacologist

Katelynn Sallack serves as a Malacologist for Marine Services and joined EnviroScience in January 2026. Katelynn joins her fellow Malacologists and supports Marine Services in freshwater mussel survey planning, fieldwork, and report writing. She enjoys writing and looks forward to her first field season with ES!

Katelynn earned her Bachelor of Science at Clarion University of Pennsylvania (now PennWest University, Clarion) with a major in Biology and a concentration in Ecology and Evolutionary Biology. She is working towards her Master of Science in Biology at Tennessee Tech University, where she studied freshwater mussel distributions in West Tennessee. Including her master’s research, Katelynn brings ten years of experience in freshwater ecology, having worked in a variety of positions since 2016. For example, she worked as a Wildlife Fisheries Biologist Aid for the Pennsylvania Fish and Boat Commission in 2021 and 2022. There, she assisted biologists with freshwater mussel surveys (qualitative and quantitative), data entry/management/analysis, report writing, and mapping via ArcGIS. Katelynn hopes her experience will support her colleagues and will help to continue EnviroScience’s great work.

In the warmer months, Katelynn often spends her weekends hiking, snorkeling, and spending time outside. When not outdoors, Katelynn loves to enjoy creative hobbies like crocheting, drawing, and block printing.


Few environmental firms in the country retain EnviroScience’s degree of scientific know-how, talent, and capability under one roof. The diverse backgrounds of our biologists, environmental engineers, scientists, and divers enable us to provide comprehensive in-house services and an integrated approach to solving environmental challenges—saving clients time, reducing costs, and ensuring high-quality results.

Our client guarantee is to provide “Excellence in Any Environment,” meaning no matter what we do, we will deliver on our Core Values of respect, client advocacy, quality work, accountability, teamwork, and safety. EnviroScience was created with the concept that we could solve complex problems by empowering great people. This concept still holds true today as our scientists explore the latest environmental legislation and regulations and incorporate the most up-to-date technology to gather and report data.

EnviroScience expertise includes but is not limited to aquatic surveys (including macroinvertebrate surveys and biological assessments); ecological restoration; ecological services (including impact assessments, invasive species control, and water quality monitoring);  emergency response; engineering and compliance services; endangered mussel surveys; laboratory and analysis; stormwater management; threatened and endangered species; and wetlands and streams (including delineation and mitigation). Further, EnviroScience is one of the few biological firms in the country that is a general member of the Association of Diving Contractors International (ADCI) and offers full-service commercial diving services.