Committee Chairs

Communications to Committee Chairs can be sent to email address:  [email protected]

Finance Committee Chair 

Bart Hoekstra  
Geometrics, Inc.
2190 Fortune Drive
San Jose, CA 95131 
United States



Membership Committee Co-Chair

Lia Martinez
Mount Sopris Instrument Company, Inc.
4975 E. 41st Avenue
Denver, CO 80216
United States


 Membership Committee Co-Chair

Robert Garfield, P.G. (NY & LA)
Owner/Principal Borehole Geophysicist
846 Main Street
Salem, NH | Fords, NJ
United States



Inter-Society Committee Co-Chair

Geoff Pettifer   

Technical Director – Hydrogeology and Geophysics
GHD (Perth, Australia)
5010 NE 66th Avenue
Vancouver WA 98661 USA
Phone: +1-360-989-6772 (USA); +61 (0)407 841 098 (Australia)
Skype: geoff.pettiferPrincipal – Hydrogeology and Geophysics              


Inter-Society Committee Co-Chair

Bruce Smith

Nominations and Awards Committee Chair

Dale D. Werkema
944 E. Harmon Ave.
Las Vegas, NV  89119
United States  


Student Committee Chair

John M. Jackson
USACE South Pacific Division Range Support Center
Sacramento District
Environmental and Munitions Center of Expertise, Huntsville

1619 12th Street
Sacramento, CA 95814
United States 


Communications & Publications Committee Chair

Judith L. Robinson
Pacific Northwest National Laboratory (PNNL)
27 Park Drive
Livingston, NJ 07039
United States 

Publications Advertising Committee Chair

David Valintine
6100 Hillcroft Ave.
Houston, TX 77081-1009
United States

SAGEEP Steering Committee Chair

Elliot D. Grunewald
Vista Clara Inc.
12201 Cyrus Way, Ste 104
Mukilteo, WA 98275
United States