Chapters & Committees

THSOA is a 100% volunteer-based society. We rely on our members to help make us successful. In addition to many folks who are behind the scenes, the below list is who you can contact should you have any specific questions. If you are interested in volunteering, please email [email protected] for available opportunities. Every THSOA member is invited to participate in activities from any chapter.


Latin America

Mid-Atlantic (Pennsylvania, New Jersey, Delaware, Maryland, D.C., Virginia, North Carolina, and Tennessee) 

Chair Vice Chair Secretary Treasurer
Daniel Wright Deanne Hargrave Sloan Freeman  
Sounding Science Atlantic Shores Geodynamics  

Midwest (Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, and Wisconsin)

Chair Treasurer Secretary
Ed Bailey Jon Arleth Denis Buelow
Northwestern Michigan College   SPACECO


New England (Maine, Vermont, New Hampshire, Massachusetts, Connecticut, and Rhode Island)   [email protected]

Chair  Secretary Treasurer Technical Coordinator
Samantha Bruce  Peyton Benson Teri Bridges Vitad Pradith
 Exail  State of Maine QPS Teledyne Construction
Student Outreach Coordinator

Regional Liaison - CT/VT

Regional Liaison - MA/RI Regional Liaison - NH/ME
 * Vacant *   * Vacant * Rick Morton  Evan Martzial
    Applanix  Echo81


Southeast (Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, Oklahoma, and South Carolina)

Chair & Treasurer Secretary | Education Outreach  Event Coordinator
Mike Nitska Rachel Bobich Kim Dailey
HydroTerra Technologies, LLC RMB GEO Survey Equipment Services, Inc.
Technical Coordinator  Student Liaison  
Scott Haydel Natalie Guess  
Ashtead Technology The University of Southern Mississippi  

Texas (a.k.a. "Houston Chapter")

Chair Vice Chair Treasurer Secretary
Alex Spriggs Jake Dumaine  Matthew Dempsey Tiziana Munene
ZUPT  Atlas Professionals  MacArtney TCarta Marine
Event Coordinator Social Media Manager Technical Coordinator  Student Liaison
Rachel Cluthe  Cody Brown Paul Laverty  
STR  C.A. Richards & Associates Fugro  


West Coast (Alaska, Arizona, California, Colorado, Idaho, Montana, New Mexico, Nevada, Oregon, Utah, Washington, and Wyoming)

Chair Treasurer Secretary
Mike Mutschler Brian Busey Bob Feldpausch
Norbit Retired Tetra Tech



Responsible for the creation and maintenance of the organization's bylaws.

Conference Planning
Develops the program for biannual US Hydro Conference. This includes providing topics, reviewing papers, identifying speakers and alternate choices, planning social activities/meals, and more.


Member Relations
Increase membership benefits with engagement, collaboration, and communication.


Professional Development
Coordinates and delivers professional development training and resources for members.

Tom Waddington

Student Outreach & Scholarships
Facilitates THSOA support of students pursuing careers in the Hydrographic industry.