Take the 680 freeway north or south to the Calaveras Blvd Exit and head east towards the hills. When it crosses Evans, it will become Calaveras Rd. Continue into the hills until you reach a fork in the road and continue to the right. The site will be on the right. Look for the SCA signs. Site is the Spring Valley Campground. Please note that you can not drive on the grass but there will be carts available to move your gear into site.
For more information, see the Ed Levin park map.