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The original item was published from 9/17/2019 2:41:43 PM to 10/2/2019 12:00:00 AM.

News and Announcements

News and Announcements

Posted on: September 17, 2019

[ARCHIVED] Help prevent pollution; Household Chemical Roundup takes place Sept. 21

Household Chemical Roundup Saturday, Sept. 21

Get the house cleared out before the weather cools down. Drop off unwanted household chemicals at the Douglas County Household Chemical Roundup Sept. 21.

This year’s roundup will be from 9 a.m. to 3 p.m. at Castle Rock Water, 175 Kellogg Court. This is a joint event between Castle Rock Water and the Tri-County Health Department to prevent pollution and help protect trash handlers. Unwanted chemicals that are not disposed of properly can contaminate the water supply, air and landfills. 

A contribution of $25 is requested to help offset the high costs of hazardous waste disposal. Participants must be Douglas County residents and will be asked for a driver’s license, water bill, utility bill or phone bill to verify residency.

Items being accepted include:

  • House, garden and pool chemicals
  • Oil-based paint and paint products
  • Automotive fluids
  • Fuels
  • Propane tanks (1-20 pounds)
  • Vehicle and household batteries
  • Items containing mercury
  • Fluorescent light bulbs and CFLs
  • Car and pickup truck tires, with rims removed
  • Fire extinguishers

Items that cannot be accepted include:

  • Business and commercial waste
  • Radioactive waste
  • Electronic waste (computers, televisions, etc.)
  • Explosive waste
  • Smoke detectors
  • Waste containing asbestos
  • Tractor tires
  • Scrap metal
  • Medical waste
  • Compressed gasses other than propane
  • Oil drums

Last year’s chemical roundup events disposed of approximately 398,518 pounds of hazardous materials, which helps keep our community and watershed clear of contaminants. Head to for more information.

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