Swan Portland Cement Ltd received approval from the Minister for the Environment (Ministerial Statement 267, 8 June 1992) to develop the quicklime plant and limestone quarry at Nowergup.

This is an inquiry under s46 regarding a request to change the above proposal to increase the production capacity of the quicklime plant from the original 230,000 tonnes/annum to 460,000 tonnes/annum, and to increase the rate of limestone quarrying from the approved 450,000 tonnes/annum to approximately 1,000,000 tonnes/annum.