YORK is excited to share the news of three new senior staff that bring a wealth of experience to YORK’s existing team!    


“Although we are a highly technical and regulated business, YORK is a customer service business at its core that relies on our people working together to help clients succeed. As changes to soil disposal regulations and the advent of PFAS testing increase the demand for timely laboratory results, building our team to service our clients is priority number one!”  

– Michael J. Beckerich (CEO and President) 

Krys Trafalski, Queens Laboratory Manager

Krzysztof, or simply Krys, moved to NYC from a prominent Albany area laboratory.  A great addition to the YORK Queens team, Krys is at the forefront of YORK’s emerging contaminants laboratory.  He has a broad experience and has worked in every aspect of the environmental laboratory; from sample collection and analysis, to quality control, client services, and lab management. 

Krys is a graduate of Rider University (2009) with a B.S. in Chemistry.  Krys has embraced his new home in Queens and you may catch him enjoying the celebrated cuisine in Astoria.


Jon Walsh, Senior Technical Director

Jon has extensive experience in custom database development and custom client data interfacing and reporting.  Jon has over 30+ years of lab experience as a technical and operational manager, as well as on the bench.  In the last two decades, he has specialized in LIMS Administration and development.  Jon has also engineered and patented air analysis methodology and hardware systems.  His presence in our Queens laboratory is important as YORK grows its emerging contaminants and air laboratories.

Jon is a 1983 graduate of Syracuse University with his degree in Chemistry.  Outside of the lab, Jon finds most of his spare time spent on his pursuit of mastering the art of sailing.


Amy Jo Arndt, Organics Manager

In 1995, Amy Jo began working her way through all aspects of organics analysis in the environmental testing industry.  Amy Jo has developed her organics chemistry specialty working in a variety of aspects of organics analysis.  She has also held positions in Quality Assurance, Project Management and Client Services.   

She graduated with a B.S. in Natural Resources from the University of Rhode Island, where her first laboratory experience was in the Organic Geochemistry Laboratory at the URI Graduate School of Oceanography.  Amy Jo enjoys cooking, reading books and enjoying a hot cup of tea.



For more information on the rest of our client services team go to https://yorklab.com/york-staff/