June 1999: The herbicide involved was Trifluralin. The amount spilt was approximately 110 litres. Of this, it was estimated that approximately 30 litres entered Wesfarmers’ internal drainage system. A proportion of this, diluted with rainwater, entered the road drainage system.
(3) Wesfarmers staff provided temporary bunding around the initial spill. When this was breached, Wesfarmers staff attempted to seal the on-site drains. They also provided absorbent material on the roadway. The Town of Bassendean and private contractors provided sand and labour to contain the liquid on the roadway. The herbicide
suppliers assisted with the containment and recovery of the material. I am not aware of the payment arrangements
(4)-(5) These questions should be referred to the Minister for Water Resources, as the Water and Rivers Commission has investigated these components