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ASCE Seattle Geotechnical Group AEG Washington Section
National Groundwater Association Washington State Groundwater Association
Northwest Environmental Business Council  


Holocene Drilling, Inc. is a proud member of the American Society of Civil Engineers (ASCE) Geotechnical Group, the Association of Environmental & Engineering Geologists (AEG), and the Northwest Environmental Business Council (NEBC).   

Holocene is also a member of the National Groundwater Association and Washington State Groundwater Association.  Company President, Jay Graham, also regularly participates with other prestigious members of these organizations in a Technical Advisory Group (TAG) Committee for the Washington State Department of Ecology’s (DOE) Water Resources & Well Licensing Program.