At GSI Water Solutions, most of our staff members are technical professionals – hydrogeologists, geologists, hydrologists, water resources specialists, water rights specialists, environmental scientists, and regulatory experts with years of experience in their fields.

Our support staff provides geographic information system (GIS), graphics, technical editing, technical writing, document production, and project administration.

GSI’s entire staff is dedicated to providing creative, cost-effective, and appropriate solutions for our clients.

	Adam Sussman Senior Water Resources Consultant 541.753.0745, ext. 201		Karen Demsey Geologist 503.239.8799
	Adrienne Lindsey Accounting Assistant 503.239.8799, ext. 130		Ken Trotman Senior Hydrogeologist 503.239.8799, ext. 116
	Andrew Davidson Staff Environmental Engineer 503.239.8799, ext. 122		Kevin Lindsey Senior Hydrogeologist 509.735.7135, ext. 201
	Bruce Brody-Heine Senior Hydrogeologist 541.678.5117, ext. 2		Kevin Parrett Senior Environmental Scientist 503.239.8799, ext. 121
	Chris Augustine Project Hydrogeologist 503.239.8799, ext. 119		Kim Grigsby Water Resources Consultant 541.753.0745, ext. 203
	Corey Treacy Assistant Program Specialist 503.239.8799		Larry Eaton Senior Hydrogeologist 503.239.8799, ext. 103
	Danielle MacBain Water Resources Analyst 541.678.5117, ext. 3		Letanya Bjonskaas Accounting Assistant 503.239.8799, ext. 127
	Dave Livesay GSI President Senior Hydrogeologist 541.753.0745, ext. 202		Matt Kohlbecker Project Hydrogeologist 503.239.8799, ext. 107
	Dennis Nelson Senior Hydrogeologist 541.744.8121		Mohammad Hashash IT Manager 503.239.8799, ext. 123
	Doug McChesney Senior Water Resources Consultant 503.239.8799		Molly Reid Water Resources Analyst 509.735.7135, ext. 202
	Emily Mackey Accounting Manager 503.239.8799, ext. 111		Nicole Landsberg Staff GIS Specialist 503.239.8799 ext. 128
	Eric Collins Senior Hydrogeologist 503.239.8799, ext. 105		Peter Pellegrin Field Technical Specialist 503.239.8799 ext. 129
	Erin Carroll Senior Staff Hydrogeologist 503-239-8799, ext. 125		Rachael Peavler Staff Hydrogeologist 503.239.8799, ext. 124
	Heidi Blischke Senior Hydrogeologist 503.239.8799, ext. 114		Randy Pratt Senior Civil-Environmental Engineer 541.740.7387
	Janet Luty Administrative Assistant 503.239.8799, ext. 101		Renee Fowler Staff Environmental Scientist 503.239.8799, ext. 133
	Jason Melady Project Hydrogeologist 503.239.8799, ext. 104		Steve Reidel Senior Hydrogeologist 509.735.7135
	Jeff Barry Senior Hydrogeologist 503.239.8799, ext. 102		Suzanne Moellendorf Water Resources Consultant 541.753.0745 ext. 204
	Jesse Manley Senior Staff GIS Specialist 541.678.5117, ext. 4		Ted Ressler Project Hydrogeologist 503.239.8799, ext. 106
	Jill Carroll Publications Manager 503.239.8799, ext. 109		Terry Tolan Senior Hydrogeologist 509.735.7135, ext. 205
	Jinsam Kim Senior Staff Hydrogeologist 503.239.8799, ext. 120		Travis Hammond Staff Hydrogeologist 509.735.7135, ext. 206
	John Porcello Senior Groundwater Hydrologist 503.239.8799, ext. 115		Vicki Cartwright Human Resources Manager 503.239.8799, ext. 118
	Jon Travis Senior Staff Geologist 509.735.7135, ext. 203		Walter Burt Senior Hydrogeologist 503.239.8799, ext. 108
	Julia Fowler Senior Engineer 503.239.8799, ext. 112