RLK Hydro's professionals keep abreast of current developments in technology and policy through their activities with the leading professional societies in their fields. These affiliations include:

American Chemical Society (ACS)

American Society of Civil Engineers (ASCE)

National Ground Water Association (NGWA)

American Institute of Hydrology (AIH)

American Water Resources Association

American Geophysical Union

Association of Montana Floodplain Managers (AMFM)

Association of State Floodplain Managers (ASFPM)

American Institute of Professional Geologists

Geological Society of America

Northwest Hydrologic Association

Northwest Geological Society