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Solid waste monitoring
Studies and surveys
Curbside collection study
2017 study looking at the composition of single-family garbage, recycling, and compost.
2018 King County Curbside Characterization ReportCustomer satisfaction surveys
These surveys gather customer feedback on the use of our facilities and services.
2018 Report: Customer Satisfaction Surveys Final 2016 Report: Transfer Station Customer Survey 2014 Report: Customer Satisfaction Surveys FinalConstruction & demolition study
2008 study of sources and makeup of the construction and demolition material stream
2009 Report: Construction and Demolition Materials Characterization StudyMarkets for recyclable materials study
2014 study of markets for curbside recyclables, organics and construction and demolition waste.
2015 Report: Market Assessment for Recyclable MaterialsMaterial Recovery Facilities (MRF) studies
Studies of regional Material Recovery Facilities (MRFs). The study looked at what recyclables are processed at these facilities and the level of contamination.
2022-2024 Report: Materials Recovery Facility Assessment2020 Report: Materials Recovery Facility Assessment: Recyclables Characterization
2006 Report: Material Recovery Facility Assessment
Organics (compost) studies
2022 study looking at the makeup of single-family and nonresidential organics collected in King County
2022 Report: Organics Characterization2022 Vashon Island community survey of waste practices and input on compost management
2022 Vashon Island Solid Waste Survey2019 study looking at the makeup of organics materials collected from commercial businesses
2019 Commercial Organic Materials Characterization2017 study to estimate how much commercial food waste is produced in King County and what portion is edible.
2017 Report: King County Targeted Business Characterization2015 study looking at the makeup of single-family organics collected curbside.
2015 Report: Organics CharacterizationWaste characterization studies
These studies track the amount and types of materials in King County’s waste stream. We sample and analyze loads brought to our facilities. We also survey customers to understand how people use our facilities 2022 Report: Waste Characterization and Customer Survey 2019 Report: Waste Characterization and Customer Survey 2015 Report: Waste Characterization and Customer Survey
Wood study
2021 study looking at the types and quality of clean wood available for potential reuse markets
2021 Clean Wood Collection and Reuse AssessmentOur program
Since 1990, our Waste Monitoring Program has conducted research to understand King County's waste. This work helps us understand customers' needs, plan for the future, and track progress towards waste reduction goals.