We were hired to hook up a mobile home. The Mobile home was placed 50' away from the existing disconnect. We ran a ground wire as well as a neutral and two power conductors, Set another disconnect to the side of the Mobile Home. We then ran from the second disconnect to the main breaker in the mobile home. We did not drive two ground rods at the second disconnect, since we pulled a grounding conductor. We did drive a second ground rod at the first disconnect, since it only had one. We are being told that the first and second disconnects are considered seperate buildings and require two ground rods at each location.