The United States recycles or composts only a quarter of its waste, with the remainder being buried in landfills. Organics, paper, and plastics, which can be recycled and composted, comprise the three largest categories of landfilled materials. It has been demonstrated that familiarizing youth with proper waste disposal methods increases landfill diversion at school and home, resulting in behaviors that continue through adulthood. In this study, I used a solid waste audit to characterize the waste disposal of a large Washington middle school. Initially, I used a survey and focus group to better understand the research needs of this particular school. Targeted goals and specific research questions were then derived from these data, which had been collected from the school’s green team. Fifteen students from the green team completed the survey, while seven participated in a focus group to further articulate their goals and aims. The overall goals were to reduce the school’s total amount of food waste and improve sorting efficiencies. Research questions included: how much waste is improperly disposed of, which materials are misplaced most, and how well do teachers sort their waste compared to students. I then conducted the audit during Spring quarter. Waste was collected from three student lunch periods as well as the teacher’s lounge and was then sorted into disposal categories, examined for contamination, and weighed. Data analysis included identifying barriers to disposal. In collaboration with the school’s green team, I then used my findings to help inform the creation of more targeted and efficient interventions. Participation in the waste audit’s design and analysis helped create a more meaningful experience for students to reflect on their own disposal habits. Hopefully, this research may act as a guide or template so other schools may incorporate waste audits into their own recycling or composting programs.