Compost is currently being produced and sold by the WPWMA’s private facility operator. Compost sales are not available on-site at the WPWMA, at this time. Customers interested in buying the WPWMA compost can purchase it from Rock Pros Landscape Supply Services, at 2920 Lesvos Court, Lincoln, CA 95648, near our facility. If you have questions about purchasing compost, please email the WPWMA at info@wpwma.ca.gov.