“During the Spring 2011 trash assessments, County Watershed Program and our partner creek groups collected 16,402 items totaling 4,688 pounds of trash from our trash hotspots.
The top four types of trash were:
24.5% STYROFOAM
17.9% PLASTIC
15.6% GLASS
13.7% CONVENIENCE/TAKE-OUT FOOD PACKAGING.”
–“Trash Assessments and Illegal Dumping.” 2012 Contra Costa County Watershed Calendar. Contra Costa County Public Works Department. Martinez, California. 2010. Quote on page 2.