Our Team



Our staff has worked together as a consistent, expert team for many years on hundreds of complex natural resource projects. This committed, cohesive team offers not only historical consistency but an important range of skills and areas of expertise – including the ability to respond quickly and efficiently to unexpected issues that may arise during the course of your project.

At PHS, we like what we do – solving environmental problems, educating people about natural resource issues, and addressing the needs of projects through innovation and expertise.




John van Staveren, PWS
President, Senior Scientist

Shawn Eisner
Wetland Scientist

Ron Gaines
Wildlife Biologist

Dale Groff
Soils and Hydrology Specialist

Carole Hallett
Wildlife Biologist

Amy Hawkins, PWS
Biologist

Gregg Lomnicky, PhD
Fishery Biologist

Caroline Rim
Wetland Scientist/Biologist

Dale Shank
Restoration Ecologist

Fred Small
Wetland Scientist/Botanist

Craig Tumer, PWS
Biologist

Eric Campbell
Environmental Project Manager

Lisa Bosca
Computer Graphics/GIS Specialist

Jane LeBlanc
Office Manager/Technical Editor