Recycling Organics in San Luis Obispo County


Did you know, around 40% of the U.S. food supply is wasted?

In California alone, organic waste accounts for more than a third of our total waste stream, around 12 million pounds annually. 

If you can't divert your food waste, why not let us turn it into compost and carbon-neutral energy?! 

Grab a free food scrap pail at San Luis Garbage, IWMA, and most City or Community Service District officies (call ahead for hours and details).

Dump the contents of this kitchen top food scrap pail into your green organics bin along with your yard waste (including flowers, grass, small branches, untreated lumber, etc.)

Please remember, no plastic or "compostable" bags should ever go in your Organics cart! Even the "green" bags do not break down in our system.

Paper bags are a useful bag alternative, or try lining your food scrap pail with newspaper or junk mail. A small liner of baking soda, or keeping food scraps in the fridge or freezer until pickup day, can also help with smells or pests. These pails are dishwasher safe too. 


Kompogas SLO Digestion Plant.

Benefits of the SLO Organic Waste Recycling System

All of the organic waste diverted in SLO County, and Northern Santa Barbara County, gets sent to the Kompogas Dry Anaerobic Digestion plant. This plant creates a renewable source of electricity on our property right here in San Luis Obispo, while producing compost and liquid fertilizer for local growers.

As of April 2024, the plant has diverted over 140,000 tons of organic waste, creating: 
  • 10 million+ cubic meters of Biogas
  • 11 million+ KwH of sustainable energy, enough to power around 600 homes each year.
  • 30,000+ tons of compost
  • 6.5 million+ gallons of liquid fertilizer. 
  • Source: Waste Today Magazine, April 19, 2024
By recycling our organic waste, we are extending the life of the Cold Canyon Landfill and reducing greenhouse gas emissions

This program ensures we are doing our part within the SLO IWMA Regional Strategy to meet California Solid Waste Diversion Mandates

What is Anaerobic Digestion?

HZI Plant diagram.
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