Our Partners

The partners and members of the Zero Waste Alliance include a wide variety of organizations and our numbers are expanding every day!

Concordia University
ePEAT
Multnomah County
Noveda Technologies
NW Environmnetal Business Council
Oceans Recovery Alliance
Oregon Environmental Council
Portland State University
Portland Sustainability Institute
Trailblazer Foods
US China Sustainable Development Center


In addition to our partners and members, ZWA works with a team of Associates who support the members and programs of the Zero Waste Alliance.

Dorothy Atwood has taken clients as diverse as forest products companies, steel foundries, fiber optics facilities, food processors, U.S. Defense Air and multinational consumer products companies from gap analysis to ISO 14000 conformant Environmental Management Systems.

Dorothy conducts Environmental Management Systems training for a wide range of industries, including wood products, metals manufacturing, transportation, electronics, and food products. Training covers all elements of the ISO 14001 environmental management system standard and includes hands-on implementation exercises and case studies.

Dorothy received both her bachelor's degree in geology and MS in Applied Hydrogeology from Stanford University.


PK Melethil, 
is a scientist with an extensive record as a project manager, as an applied physical and analytical chemist, and over 30 years of experience in a diverse range of organizations. He is interested in integrative approaches to problem-solving and in building interfaces at the intersections of technology, environment, community, and health.

Mr. Melethil's experiences over the last 25 years include the following - in the electronic products industry as a Manufacturing Quality Engineer & Senior Analytical Chemist; at the Pacific Northwest National Laboratory - a Department of Energy National Laboratory - as Project Manager and Senior Research Scientist; at the DOE Hanford site in Washington, on a broad range of characterization and environmental monitoring (RCRA, CERCLA, EHS) activities.

PK is also interested in improving health from a systems level perspective and practices Chinese medicine in Wilsonville, Oregon. In addition to a Master of Acupuncture and Oriental Medicine degree, he holds Master of Science degrees in Physical Chemistry and in Environmental Science.