Customer satisfaction surveys

These surveys gather customer feedback on the use of our facilities and services. 

Construction & demolition study

2008 study of sources and makeup of the construction and demolition material stream

Markets for recyclable materials study

2014 study of markets for curbside recyclables, organics and construction and demolition waste.

Material 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.

Organics (compost) studies

2022 study looking at the makeup of single-family and nonresidential organics collected in King County

2022 Vashon Island community survey of waste practices and input on compost management

2019 study looking at the makeup of organics materials collected from commercial businesses

2017 study to estimate how much commercial food waste is produced in King County and what portion is edible. 

2015 study looking at the makeup of single-family organics collected curbside.   

Waste 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 

Our 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.