Compost Your Leaves, Pumpkins & Food Scraps! October 31, 2019 Email Customers are provided up to two (NRWS) or four (NCRWS) compost carts at no charge. Additional carts are available for a small fee. Call (707) 255-5200 for additional carts. You may also stop by our main Napa office to pick up one box of compostable bags for your extra leaves. Please call ahead for an extra pickup on your regular pickup day (up to two times per year). Did you know it is illegal to blow your leaves into the street? Leaves left in the street end up in storm drains and cause flooding. (Napa Municipal Code sections 12.16.020 and 8.36.050)