January 1, 2026
The non-profit Shark Stewards has released a report on annual plastic branding and monitoring data by category. In 11 cleanups at Berkeley Aquatic Park, volunteers and team members collected over 1.5 tons of waste comprising 17,728 items. The items were categorized using the Cleanswell method, focusing on plastics. Branding information was also collected to identify the most common plastics in this waterway, and debunk the recycling myth.
This report is based on plastic cleanup surveys conducted at Berkeley Aquatic Park CA, a public park surrounding tidal lagoons with connection to the San Francisco Bay. The Shark Stewards team, volunteers, and community, conducted monthly cleanups on Sundays for 2-3 hours throughout the year. Together we gathered debris and collected data in over 40 categories with a focus on plastic. An estimated total 3,017 pounds of waste were collected, disposed of, or recycled (when possible).
Branding data was collected for the most common manufacturers with an emphasis on plastic bottles and food wrappers. McDonalds food containers were the most prevalent (lids and straws), followed by plastic bottles (Costco, Crystal Geyser, Coca Cola) and food wrappers (Hershey, Snickers, Cheetos, Lays). Although these brands display the three “chasing arrows” recycling symbol, most of these plastics are not even recyclable. Through more clear labeling, producing products from recycled materials, and producing materials that are actually recyclable, manufacturers can reduce plastic pollution. Better consumer choices and action will protect the marine environment, the wildlife, and humans from plastic pollution.
Join our next cleanup January 25, volunteer or support this work.