Solid Waste and Recycling


Mount Diablo Resource Recovery (MDRR) is fthe franchise hauler for the City of Concord.

The City of Concord has a Solid Waste Franchise Agreement with Mount Diablo Resource Recovery (MDRR). MDRR has exclusive responsibility for solid waste removal and disposal throughout the City of Concord. If you have trash, recycling, or organics/green waste specific questions please reach out to MDRR directly by phone at 925-682-9113 or via email at:

ORGANICS WASTEMt. Diablo Resource Recovery (MDRR) and the City of Concord continue to partner on the implementation of Senate Bill 1383, Short-lived climate pollutants. SB 1383 went into effect on January 1, 2022, and makes it mandatory for every city in California to provide organics recycling. Organics recycling includes food scraps, food-soiled paper, and yard waste.

The intent of SB 1383 is to reduce greenhouse gas emissions by diverting food waste from being landfilled. As of Jan. 1, organics recycling is now mandatory for businesses regardless of the amount of food waste generation, unless eligible for an exemption. MDRR and the City of Concord are working together to build the capacity to accept residential organics waste in the near future.

Organics collection for residential accounts is coming in September 2023. Outreach and education materials have been shared with Concord businesses notifying them of this change. Additional outreach and educational materials will be shared with residents as this date approaches. 

Educational materials and Frequently Asked Questions are available through MDRR’s website

Please click here for a helpful guide on how to use your kitchen pail. 

To submit a complaint related to SB1383 please complete this form

Home - Mt. Diablo Resource Recovery (

Hazardous Waste Disposal and Handling

Central Costa Sanitary District is a resource available to use by Concord residents who want to properly dispose of items that should not be disposed of in the trashcan or recycling bin.  

Residents of concord may drop off household hazardous waste at no charge, with no appointment needed. Small businesses must schedule an appointment and pay a small fee to dispose of their hazardous waste.

Household Hazardous Waste Collection Facility - Central Contra Costa Sanitary District (

Central San will help properly dispose of household hazardous waste. Here is a short list of some of the common hazardous household waste products they will take:

  • Paints
  • Motor Oil
  • Car Batteries
  • Pesticides and Herbicides
  • Pool Chemicals
  • Aerosol Sprays
  • Brake, transmission, and automotive fluids
  • Liquid cleaners
  • Shampoo, hair spray, and lotions

What is and is NOT accepted hazardous material?

Please review the link below to see exactly what Central San will and will not take:

What’s Acceptable? - Central Contra Costa Sanitary District (

What HHW is Accepted (

Address: 5019 Imhoff Place Martinez, California, 94553

Contact Information: 925-228-9500

Hours of Operation: Monday – Saturday, 7 a.m. – 2 p.m. (see Hours & Directions for holiday closures)

Mattress Disposal

Mattresses are accepted at the Mt. Diablo Resource Recovery processing facility for a fee. The facility is located at 1300 Loveridge Facility in Pittsburg, CA.

You can find a mattress collection site, recycling facility, or collection event near you by following the link below:

Find a Facility - Bye Bye Mattress | A Program of the Mattress Recycling Council