Proper HHW Management Protects
Public Health and the Environment

Many common products are hazardous because they contain chemicals that are toxic, corrosive, flammable or reactive. Improper disposal (pouring down the drain, on the ground, into storm sewers, or in some cases putting them out with the trash) can harm the environment and a pose a threat to human health.  


We are officially re-opened!

 Make your appointment now! Check for hours/locations here

But do i have to make an appointment? The short answer is no, however, making an appointment assures we have the appropriate staff ready to help you! We get life happens, and you may want to come earlier or later than your appointment time or on a day that works better for your schedule. That is why we welcome walk in’s and fluctuating your appointment time with no advanced notice! 

* Leaving waste unattended while we are closed is considered illegal dumping, so please respect our posted hours and days of service found here. *


Thank you for properly managing your household hazardous waste!



Hoffmeister - Lemay Location                               Seven Hills - Florissant Location

Open every Thurs., Fri., & these Saturdays:                                Open every Wed. & these Saturdays:

February 23rd                                                                        February 16th

March 9th                                                                                     March 2nd

March 23rd                                                                                 March 16th

April 6th                                                                                      March 30th

April 20th                                                                                       April 13th

May 4th                                                                                           April 27th

May 18th                                                                                          May 11th

June 1st                                                                                            May 25th

June 15th                                                                                          June 8th

June 29th                                                                                       June 22nd

July 13th                                                                                            July 6th

July 27th                                                                                         July 20th

August 10th                                                                                 August 3rd

August 24th                                                                               August 17th

September 7th                                                                            August 31st

September 21st                                                                  September 14th

October 5th                                                                        September 28th

October 19th                                                                           October 12th

November 2nd                                                                          October 26th

November 16th                                                                      November 9th

December 14th                                                                   November 23rd

December 28th                                                                      December 7th

                                                                                                    December 21st



         If you have questions or concerns, please contact us


HHW Recycling Tips

View all Recycling Tips »

How to Prepare HHW for Transport


  • Pack waste carefully in a box or plastic storage container to prevent spillage during transport
  • Do not mix chemicals! Arrange similar chemicals together when packing your car. Put pesticides together, solvents together, paints together in their own boxes
  •  Make sure chemicals are not leaking and lids are tightly sealed. If they are not sealed, place them in a separate container for transport
  • Keep products in their original container. Label materials that are not in their original container. If you do not know what the substance is, transport it in its own box and let us know it is an unknown substance
  • Place your box of household hazardous waste in the trunk of your car or in the bed of your truck
  • Drive directly to the HHW disposal site carefully and let staffed personnel unload your chemicals once you arrive