Trash & Recycling

​The Environmental Services Team provides curbside trash and recycling collection services to over 32,000 homes in the City, as well as a number of other collection services for our citizens. The collection service program is operated as an enterprise fund, meaning that all costs associated with providing the various services are covered by user fees.

The Trash & Recycling Collection Schedule applies to city of Thornton trash and recycle customers only.

Trash & Recycling Programs

Tree Branch/Compost Material Drop-off

Dates: Saturday, July 13

Time: 8 a.m. - noon

Location: Thornton's Infrastructure Maintenance Center, 12450 Washington Street, Thornton, CO  80241. Use the north entrance, accessed from 126th Avenue, east of Washington Street.

Guidelines: Thornton residents may bring tree branches, limbs, and organic material to the Infrastructure Maintenance Center (IMC). Proof of residency is required. Residents will be responsible for unloading their branches and all organic material. Any organic material in bags must be opened on site (only exception are 3 gallon fully compostable kitchen bags). No commercial or landscaping companies.

2024 Event Dates

Learn more about upcoming event dates for Click & Haul, Electronic Recycling, Fall Leaf Curbside Collection, Fall Leaf Drop-off, Household Hazardous Waste Drop-off, Landfill Days and Tree Branch/Compost Material Drop-off.

We've gone Mobile!

City of Thornton trash/recycling customers are now able to download a mobile app to their cell phone or tablet! Please look for City of Thornton Recycles in the App Store and on Google Play.

Use the Trash & Recycling Calendar Wizard

Not sure how to properly dispose of something?  Simply type the name of the material into the Wizard and find out!

What can I bring to the IMC?

The Infrastructure Maintenance Center (IMC) is located at 12450 Washington Street.  Thornton residents only (no commercial or landscaping companies) may bring or drop-off the following on weekdays during business hours:

  • ATTENTION - Cooking oil is no longer accepted for drop-off at the IMC.
  • Motor oil, antifreeze - in sealed gallon (or smaller) containers.
  • Appliances such as refrigerators, dishwashers, & water heaters.
  • Compost material such as grass clippings, leaves, flowers, coffee grounds, food scraps.  Be prepared to open all bags on site. Only 3 gallon compostable kitchen bags will be accepted.
  • Please call 720-977-6200 ahead of your arrival for instructions or head to the north gate entrance with access from 126th Avenue, east of Washington Street.  Once at the gate, press the button for access into the yard and let the operator know you are there to drop off compost.

Access to the north gate from 126th Avenue is now restricted other than on event days.

Solid Waste Fee Structure 

The current fee for Thornton’s Solid Waste Collection Program is $17.50 per month, and will appear on your water bill. The $17.50 per month charge includes a weekly collection of solid waste and every other week collection of recycling materials. This service is limited to ONE black container for solid waste. There is an additional charge for each additional black container with a maximum of four containers. However, green containers filled with trash will not be emptied.

Current Rates                                      

  • One black container - $17.50
  • Two black containers - $22.00
  • Three black containers - $33.90
  • Four black containers - $45.80

Solid waste collection dates are address specific. If you are unsure of your trash/recycle collection day, please click the Trash & Recycling Calendar tab on the left hand side of this page.

Order an Additional Container or Lid Replacement

2024 Holiday Delay Schedule

Trash and recycling collection will be delayed one day on the following holidays:

  • New Year's Day, January 1
  • Thanksgiving Day, November 28
  • Christmas Day, December 25