Dave Czayka

Director of Regional Operations | Senior Aquatic Biologist

EnviroScience Director of Regional Operations / Senior Aquatic Biologist Dave CzaykaA valued member of EnviroScience’s leadership team, Dave Czayka has been with the company since 2005.  He currently serves as Director Regional Operations—including EnviroScience’s regional offices in Brentwood, TN, Richmond, VA, and Morgantown, WV—and Senior Aquatic Biologist.

Dave brings a wide breadth of knowledge to the team.  His experience includes freshwater and coastal fisheries, mussel, and vegetation surveys. Additionally, he is well-versed in stream assessment, wetland delineation, invasive species management, terrestrial mammal surveys, ichthyoplankton identification, environmental sampling, and emergency response. 

Dave plays a key role in the efficient implementation of the firm’s field-based services with each of the practice areas. In addition to his formal scientific training and consulting experience, he is a PADI-certified open water diver and has completed OSHA construction 10-hour training, HAZWOPER 40-hour training, and 8-hour Stormwater Management training.

Contact Dave at:  DCzayka @ EnviroScienceInc.com


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.