In all, AGL has taken a total of five samples from three different locations at its Waukivory Pilot Project. Four of the samples found BTEX concentrations in the range 12–70 parts per billion. The fifth sample found a BTEX concentration of 555 parts per billion.

The integrity of this sample is being reviewed along with the other sample results.

BTEX has previously been found in baseline groundwater tests carried out before the commencement of the Waukivory Pilot Project at levels of approximately 30–60 parts per billion in the Gloucester Basin.

AGL Managing Director Michael Fraser said: “Becaus...