We turned down a job with a 200 amp disconnect with SER feeding the sub panel in house.They ran the ufer ground(grounding electrode)to the sub panel.We turned it down and made them run the ufer ground to the service disconnect.When we went back to reinspect,we noticed he did run another ufer ground to the service disconnect but left the original ufer ground in the sub panel.The neutrals and grounds are seperated in the sub panel.Is it a code violation to leave this extra ufer ground in the sub panel?Any code sections would be helpful.