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June 7, 2019
SEATTLE — Seattle Public Utilities and Waste Management have begun their launch of a green fleet of recycling, compost and garbage trucks.
The fleet includes 101 Waste Management vehicles powered by either renewable natural gas (RNG) or electricity. Included are 91 collection trucks powered by the new Cummins Westport ISL G Near Zero engine, which use RNG. The city says the engines are the cleanest ever certified by the California Air Resources Board and the EPA.
RNG begins as a biogas from decaying garbage at landfills. Waste Management uses underground vacuum systems to collect the biogas so it can be cleaned and loaded into pipelines.
The fleet is rounded out by eight Nissan Leaf electric support vehicles and two battery-electric Class 6 box trucks, which will be on the job soon to keep downtown alleys clean and provide special collection services.
Waste Management covers about 60% of the city's residents and businesses.