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Household Chemical Roundups

We unload the products, so you don't even have to get out of your car!

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Douglas County Pre-Registration
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For more information, call Thomas Riggle at 720-200-1592.

How to dry latex paint on your own:

Latex paint is NOT a hazardous waste, and can be safely disposed of with your regular household garbage once it is dried out and no longer liquid.

Paint cans

To dry latex paint, remove the lid from the paint cans, mix in an absorbent to speed the drying process (such as kitty litter, dirt or sand) and allow the paint to dry completely before disposing with your regular trash pickup. (More Info)


Many common products found in your home such as oil-based paint, mercury, gasoline, degreasers, cleaning compounds and garden chemicals may be hazardous and they should be used and disposed of carefully.

Household Chemical Roundups:
These community events help prevent pollution and protect the people handling your garbage. In 2010, 3,865 households from Adams and Douglas counties participated in the Roundups, disposing and recycling over 191 tons of household hazardous wastes. (Arapahoe County provides individual disposal services for their communities.)
Adams County Annual Report
Douglas County Annual Report

2014 Adams County Roundups:
All events are 9:00 am - 3:00 pm
Sat May 3
- Water World Map | Poster | News
Sat Sept 20 - Thornton Map | Poster
Electronics Recycling at both events
Pre-Register Online | Print a Flyer

Northglenn: 303-450-4004
Thornton: 720-977-6200
Westminster: 303-658-2400 x3362

2014 Douglas County Roundups:
All events are 9:00 am - 3:00 pm
Sat April 12 - Parker Map | Poster | News
Sat Aug 16 - Highlands Ranch Map | Poster
Sat Sept 13 - Castle Rock Map | Poster
Pre-Register Online | Print a Flyer

Lone Tree: 1-800-449-7587

Arapahoe County Disposal Services:
Aurora: 303-739-7372 (Link)
Centennial: 1-800-449-7587
Cherry Hills Village: (Link)
Englewood: 303-762-2345
Glendale: 303-639-4501
Greenwood Village: 1-800-449-7587 (Link)
Littleton: 303-795-3834
Sheridan: 303-738-9426
SE Metro Stormwater Authority (Link)
Unincorporated Arapahoe County
(including Foxfield and Deer Trail):

Related Tri-County Pages:
Environmental Health Homepage
A–Z Index of Topics and Services
Animal-Borne Diseases
Disease Prevention
En Español / In Spanish
Going "Green"
Health Inspections
Indoor Air Quality / Mold
Industrial Hygiene / Occupational Health
Meth Lab Cleanup

Tri-County Fact Sheets:
Auto Waste Fact Sheet
Electronic and Computer Waste
Household Hazardous Waste Fact Sheet
Household Hazardous Waste Tips
Household Pharmaceutical Waste
Medication Disposal Sites
Paint and Stains Disposal Fact Sheet
Pollution Prevention Tips

Related Fact Sheets and Links:
Adams County Public Works
Arapahoe County
Colorado Recycles - Recycling Guide
Commercial Solid Waste Sites
Compact Fluorescent Lightbulbs - CFLs
CFLs Cleanup and Hazards
Denver Recycles
Douglas County Landfill / Trash Sites
Earth 911
EnergyStar / Energy Efficiency
Environment Directory - Search Engine
Green Choices
Green Consumers
Hazardous Substances Data Base
Health and Safety Info - Household Products (NIH)
Household Hazardous Wastes (EPA)
Household Products Database
Household Solid Waste Sites
Industrial Solid Waste Sites
Medical Waste Disposal
Medication Disposal Sites
Mercury-Free Colorado Campaign
Mercury Thermometer Fact Sheet
Mercury Thermometer - Spills and Cleanup
Needles / Syringe Disposal
Westminster Household Waste Removal

En Español - In Spanish:
Desechos Peligrosos en el Hogar
Pinturas y Productos Para la Carpenteria
Productos de Autómoviles
Sustancias Químicas y Los Riesgos
Tox Town - Salud Ambiental

Kids Pages:
Chemicals Around the House
Drinking Water and Groundwater (EPA)
Environmental Health Links and Games
EPA Kids Pages and Games
EPA Student Center
Hazardous Wastes (CDC)
Recycle City (EPA)
Tox Town - Interactive Website
Water Treatment Cycle (EPA)

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