School project, adding a gym attached by a short corridor to the existing building. They have an addition water service is coming into the far side of the gym building for a sprinkler system fed by a diesel fire pump. Is a grounding electrode conductor required to be ran from the main electrical room some 750+ft away {250.104 (A)(1)(1&2)} or will the equipment grounding conductor suffice{250.104(A)(2)? Or could a bonding jumper of sufficient size be bonded to building steel to make the connection to the grounding electrode system {250.104 (A)(1)(3)?