Compost Information:

Contra Costa Waste (RCTS) sells some of the best compost and bark in the county!

Mixing compost into soil will have many benefits, like providing nutrients that help plants grow and helping the soil hold onto moisture. It can even help slow down weed growth. Compost is also good for preparing soil for new lawns and can also be used as a top dressing or mulch.

Bags: (1.5 cubic feet- 42.5 liters) $5.50 per bag, plus tax.
Bulk: (1 ton- 2.22 cubic yards- 2000 lbs.) $60 plus tax.

Lawn or top dressing: Spread a layer ¼ “ thick over the area and rake it into the soil. Provide good deep watering after spreading. Add to planter boxes or planter beds to add nutrients and organic matter to your soil and plants.

If you are using the compost as moisture holding mulch- do exactly what you would do with any mulch. Spread it around plants, trees, and shrubs – the usual entities in your garden or lawn. Just make sure there is a good 2 to 3 inches on whatever the surface is.

Soil Amendment:
Use compost as soil amendment. Just dig anywhere from 2 to 4 inches down while raking in the compost, and mix it in with the rest of the soil at planting time.

Bark (Ground Cover)
Contra Costa Waste (RCTS) is now selling Bark in bulk only. We sell both brown and black bark. The price is $250.00 per ton. If you or your business is interested in purchasing bark please contact us at: 925.473.0180 or
(allow 24 hours for email response)