Help prevent pollution; Sept. 30 Household Chemical Roundup collects unwanted chemicals

The summer celebrations are coming to an end, and fall is officially right around the corner. Usher in the change of season on the right foot, and get rid of any unwanted household chemicals at the Douglas County Household Chemical Roundup.

This year’s roundup is Saturday, Sept. 30. Drop off any unwanted chemicals between 9 a.m. and 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. For example, one drop of oil can contaminate more than one million drops of water.

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. Residents looking to drop off unwanted chemicals can pull up to the Castle Rock Water building the day of the event. Volunteers will be on hand to help unload.

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

More than 814 households participated in last year’s Castle Rock chemical roundup event which disposed of approximately 103,073 pounds of hazardous materials.

Looking to help out? Volunteers will be able to dispose of their unwanted chemicals for free. Head to for more information.

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