Jepson Prairie Organics

Facility Information

Jepson Prairie Organics, located east of Vacaville, California is one of the largest food scrap composting operations in the nation. Jepson Prairie Organics processes approximately 100,000 tons of organic material from San Francisco, surrounding Bay Area communities, and several municipalities within Solano County.

Jepson Prairie Organics utilizes two primary types of feedstock in the composting process. Food scraps generated at restaurants, hotels, markets, and coffee shops throughout Northern California and yard trimmings generated in Dixon, Vacaville and Vallejo.The two feedstocks are fed into an industrial sized grinder and mixed to attain a ratio ideal for biological decomposition. The material is then placed onto the Engineered Compost System (ECS), which was developed specifically for the needs and specifications of Jepson Prairie Organics. Material remains on the ECS for a period of 30-45 days of active composting. While on the ECS zones, biocovers are utilized and temperature and oxygen levels are monitored. The material is also watered and turned while on these zones. After this period, the material is screened and placed into windrows for curing. Once fully cured the material is screened again, finished, and ready for sale.

Jepson Prairie Organics’ quality assurance program includes routine nutrient, metal, and pathogen analysis of our compost to ensure a high quality, consistent product that meets the needs and expectations of our customers


Products are sold at a 5 yard minimum.

Recology Premium Compost: This nutrient-rich compost is made from a unique feedstock that includes food scraps and yard trimmings. It encourages leafy growth and succulence, increases microbial activity, promotes strong root systems, and improves soil structure. This is a favorite of Orchards, vineyards and organic farmers. Recology Premium Compost  is OMRI listed and has US Compost Council Seal of Testing Assurance.

Super Organic Compost:  Consists of  Recology Premium Compost , Rice Hulls, White Wood Fines, Organic Sulfur, Groganics , Gypsum and Pumice.  Super Organic Compost introduces organic matter to improve soil structure and to provide a balanced blend of macro- and micronutrients. Super Organic Compost is ready to use as a soil conditioner, planting and potting mix in raised gardens and planting boxes. Nurseries rave about this special blend.

JPO Topsoil: This premium topsoil contains Recology Premium Compost, Rice Hulls, Wood Fines, Sandy Loam, and Gypsum.  This mix is great for topsoil replacement, direct seeding, lawn care, soil repair, and raised garden beds. 

Ultra Potting Mix: consists of Recology Premium Compost, Rice Hulls, Mendo Peat, Gypsum, Groganics and pumice. Ultra Potting Mix is fully ready for uses. This mix is formulated for indoor and outdoor planting, and is perfectly suitable for use in any size planting container. Provides a healthy substantial basis for all the demands of general purpose planting.

Custom Blends
We take special orders and can blend our high quality compost with additional amendments suited to your specific growing needs. Call us for consultation services.

Piles of our various compost and soil products at Jepson Prairie Organics 


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Monday - Friday 8:00 AM - 4:00 PM

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