Compost it. February 28, 2024 Email Napa City and County residents threw out 8% less trash – and composted nearly 17,000 more tons – during the first nine years of the food composting program. Thanks for helping reduce waste, decrease emissions and create local organic compost! But, we can do better…there are still thousands of tons of compostables going to the landfill. Join your neighbors and compost all your food scraps and soiled paper – check out our curbside composting page for all the details!