I'm not saying it is not above average but is within "normal"...

I'm not saying it is not above average but is within "normal" expected ranges which the plant and planning should be/is based on. One cannot design a plant which relies on weather and assume it to be consistent every day/month/year nor should one design for the worst case either. Sydney can and has received 250mm in a day like most places in the world. Just because this year has been lower than average in Sydney is irrelevant(well sort of Australia and South America are oppositely linked to the el nino-la nina weather patterns, but how closely this ties to Sydney-Olaraz is beyond my intellect). Regardless it seems we are mostly arguing semantics.