I am not sure on how to bond this transformer should the ground from the transformer go to the ground bar in the 100 amp switch or take it down to the trough. All conduit is pvc. This building is wood frame with no water pipe, it is just a distribution point. The service 1PH 120/208 coming off the transformer disconnect is aerial to a out building that has water and steel grid for a electrode is 3 wire okay.
