It is agreed and declared that EXCLUSION 4.15 is deleted and replaced by the following:
4.15 POLLUTION
4.15.1 Personal Injury or Property Damage caused by or arising out of the discharge, dispersal, release or escape of Pollutants into or upon land, the atmosphere, or any watercourse or body of water
4.15.2 any costs and expenses incurred in the prevention removing, nullifying or clean up of such contamination or pollution