Douglas County Household Chemical Roundup on Friday, Nov. 20

Cars driving through household chemical waste roundup with volunteers

Information provided by the Tri-County Health Department

During the challenges of the COVID-19 pandemic, the Douglas County Household Chemical Roundup Program has changed course to ensure safety for residents and workers. Come to our new appointment-only Pop-Up-style event to dispose of all of your household chemicals. This event will be located at the Parker Joint Services Center, 17801 E. Plaza Drive held in Parker on Friday, Nov. 20, 2020 from 8 a.m. to noon. To enter the site, turn right onto Plaza Drive from southbound Twenty Mile Road.

To promote safety during the pandemic, appointments are required and can be made by calling 303-269-9448. Appointments for Pop-Up Events will be limited to 150 callers on a first-come, first-served basis. Douglas County participants should bring proof of residency, such as a driver’s license or utility bill and $25 per vehicle (no cash accepted) to offset the cost of hazardous waste disposal. View a flyer for additional details.

There is also a Door-to-Door service (primarily for residents unable to attend events) where residents may arrange an appointment to have waste picked up from their homes. Appointments may be made for Door-to-Door at 303-612-6262 for a fee of $25, and are limited to 20 households served per month, starting in November and going through June in Douglas County.

Many common products found in the home may be hazardous and should be used and disposed of carefully. These include motor oil, antifreeze, vehicle batteries, solvents, house and garden chemicals, compact fluorescent lights (CFLs), fire extinguishers, propane tanks, oil-based paint, and gasoline. Proper disposal at the Roundup helps prevent the potential of accidental poisonings and fire hazards in the home.

Residents with architectural paint and paint products can now conveniently drop off unwanted paint for recycling year-round at many locations in the Denver Metro Area. The Paint Stewardship Program is operated by PaintCare and is a free option for paint recycling throughout the year at participating retailers. Visit for paint drop-off locations.

The Douglas County Household Chemical Roundup cannot accept waste from businesses and are not able to accept radioactive waste, smoke detectors, electronic waste of any kind, scrap metal, oil drums, asbestos, medical waste, sharps, or explosives. Due to the small size of the event, we will also be unable to accept items that we may have in the past, including tires and flares.

The Household Chemical Roundups are sponsored by: Douglas County; Centennial Water and Sanitation District; Metro Districts of Highlands Ranch; Parker Water and Sanitation District; Plum Creek Wastewater Authority; South Metro Fire Rescue; Town of Parker; City of Lone Tree; Inverness Water and Sanitation District; High Plains Farms Metro District; and Tri-County Health Department.

In 2019, the Douglas County Household Chemical Roundup Program properly disposed of 475,640 pounds of hazardous materials and an estimated 3,296 households were served. To check the status on this and other upcoming events, go to For information on how to dispose of other materials, visit the Tri-County Health Department A-Z Recycling Guide at

Questions? Visit or call the Household Chemical Roundup hotline at 303-846-6249.