Thornton residents may bring tree branches, limbs, and compostable material to the Infrastructure Maintenance Center (IMC) 12450 Washington Street. Proof of residency is required. Residents will be responsible for unloading their branches and all compost material. Compost material must be placed in BPI certified fully compostable bags, paper sacks, or be prepared to open other types of bags and empty on site. Residents must follow social distancing guidelines, staying at least six feet away from City employees and others at all times.