Eric P. Ellingson is a certified Professional Geologist, Senior Professional Wetland Scientist, and Registered Wetland Delineator with over 30 years of experience in hydrology, geomorphology, and ecological restoration. As President of Earth Source Inc. and founder of Heartland Restoration Services, he has led innovative projects in natural resource management since 1988. A recognized expert, Eric serves on the U.S. Army Corps of Engineers Wetland Delineation Manual peer review team and the Indiana Wetland Science Advisory Group.

He has lectured at major universities, sharing expertise in wetland hydrology and restoration. With a strong foundation in geology and water resource management from Indiana University, he is dedicated to advancing environmental stewardship and ecological restoration.