Pleasant Hill Library is now closed; PSC moves to Concord Library 1 Jul Posted on July 1, 2020July 13, 2020Author pscadmin 0 Elaine Kociolek | Adult Literacy Program Manager Project Second Chance | Contra Costa County Library | ccclib.org 2151 Salvio St., Ste. 299, Concord, CA 94520 925-691-3960