SCRAP Board of Directors

Michael Bongiorni, Board President
Nonprofit professional and community builder, former Materials Donation Manager of Goodwill Industries

Michael writes “The importance of developing a vibrant arts community meshed with key principles of sustainability are factors that have always interested me about SCRAP’s role in San Francisco. As our arts community becomes more aware of its responsibility to lessen waste SCRAP takes its position as leader in this field.  I can also bring my experience as an educator and not-for-profit manager to SCRAP.”


Joel PuliattiJoel Puliatti, Vice President

Joel is a long-time SCRAP depot user who incorporates and repurposes materials for his photography business as well as for his children’s art supplies during their time at SFUSD. He says that finding materials at SCRAP both helps fill a need and inspires new projects. He says: “I want the excitement of discovery and rediscovery (reuse) to draw in a wider community toward SCRAP.” Joel has been active as a Clarendon Elementary parent and has served on numerous fund raising committees including the annual auction.


Kristina Bonnett, Treasurer
Financial AnalystKristina Bonnett

A fervent recycler and amateur botanist, Kristina has a passion for maintaining our environment.  Through experience coordinating reuse for textbooks to creating rooftop gardens, she enjoys collaborating with others along the way.  Kristina is happy to combine sustainable-oriented projects with her financial background, in her position as SCRAP Treasurer.

Nicole Gaetjens, co-SecretaryNicoleGaetjens-crop
Sustainability Coordinator, Mills College

Nicole has always been obsessed with reuse centers, starting one as a student at Stanford and currently overseeing the Re-Use Depot at Mills. She also volunteers for several youth engagement and mentoring programs. Nicole enjoys utilizing her marketing and event planning experience on the SCRAP Board.


Annette Poliwka, co-Secretary
Sustainability StrategistAnnette Poliwka

Annette is a waste diversion expert, formerly known as “The Recycling Princess.”   Last year she conducted plastic pollution research in the Atlantic Ocean with 5 Gyres.  Having learned that 80% of marine debris starts as land-based garbage, she collaborated with universities and communities with environmental justice concerns in the Dominican Republic to develop recycling programs.  Annette has worked with SF Environment, USEPA and USAID.  Her crafty re-use activity is making greeting cards with collages for friends and family.


Felisia Castañeda
Education Specialist, Recology San Francisco

Felisia Castaneda

A dedicated environmental educator, Felisia strives not only to teach but also to inspire people to become stewards of our planet. Through her previous work at the San Francisco Department of the Environment and current position with the Artist-in-Residence program at Recology San Francisco, Felisia has engaged with thousands of students and adults about reusing, reducing, recycling, and composting. She hopes her network of San Francisco educators and experience with engaging the public can help grow SCRAP’s presence among the community.



Diego Castellani
Healthcare ProviderDiego Castellani

Healthcare provider, artist and gardener, Diego finds inspirational materials at SCRAP’s for his creative compositions.
Diego has been a local resident for several years, volunteers and networks with different organizations for the promotion and rediscovery of the sunny Bayview District, and has cofounded several community groups. He is interested mainly in greening and beautification, and establishing strategies towards a safer and better environment.


Crystal Cheng
Project Manager, Opportunity FundCrystal Cheng

Crystal believes in the compounded impact of entrepreneurship and education on society. She works as a project manager supporting new products and partnerships at Opportunity Fund, California’s leading microfinance provider. Opportunity Fund provides microloans for small business owners and microsavings accounts to help students pay for college and families save for a rainy day. Prior to joining Opportunity Fund, Crystal spent approximately five years as a management consultant with experience ranging from supporting large system implementations and managing projects to supporting strategic initiatives. She specialized in developing efficient and effective business processes that help the organization achieve its strategic goals.


Kathryn HydeK-Hyde
Artist and Recycling/Reuse professional

Kathryn, a specialist in waste management, waste reduction as well as strategic planning, community and stakeholder education, brings outstanding qualifications and background to SCRAP. At UCSF she implemented sustainability, recycling and waste management projects and successfully coordinated waste reduction programs.
Kathryn enjoys applying her skills and passion for sustainability to SCRAP by enhancing and broadening relationships with various stakeholders and recruiting new board members.


Mindy  Kershner
Realtor, Tower Properties


Many thanks to these former board members for their years of dedication and service:

Joan von Briesen
Paul Fresina
Cathy Hwang
Ryah Lindemuth
Kathy Looper
Claire Pilcher
Dianne Platner
Louise Sampson
Nina Youkelson

Ben Delaney
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