wrong size belts installed or both belts have been mixed up looks like some one may of possibly changed the 10 by 605 belt to a shorter belt by passing the water pump while the other pulley drives an auxiliary looking at one of the belts it looks new
the water leak should not to be to hard to find as the OP has time to take a snap shot but lazy to climb under neath to pin point it
i have never seen a water pump ran down to this destruction before but i have seen the wrong type of pulley installed and possible the wrong way
the photolooks deceiving and is this mounting blocks straight the whole pic looks twisted