Concrete Sand Supply: Tremor’s contribution to the Wheatstone project has been through the supply and delivery of high spec concrete sand to BORAL Construction Materials at the Onslow site. Tremor was engaged by BORAL at the end of 2013 to supply a blended sand product capable of meeting the stringent Bechtel/US standards applicable to the programme. Over the course of 2014 and 2015 Tremor supplied more than 200,000 tonne. At peak demand, Tremor was loading 2,000 tonne per day for delivery form the North West Coastal Highway facility.