To complete an eviction we require the original writ, Sheriff's fee, and a signed Contra Costa County Sheriff letter of instruction for eviction located above. Court Collections Unit.Phone Hours, am - pm. Would you like someone from the CalFresh team to contact you? Fill out the CalFresh contact form and a member from our team will get in touch with you. Org or (925) 676-7543 ext. 605. How to Apply for CalFresh: In Contra Costa County you can apply for CalFresh in several different ways: Online at BenefitsCal. Step-by-step application instructions - apply online to become a student at Contra Costa College in San Pablo, California! The City of Concord partners with Contra Costa County and local non-profit organizations to provide assistance to our unsheltered residents. If you want some help filling out the application, call the Food Bank 855-309-FOOD (3663).