Hanson Australia Pty Ltd (‘the proponent’) proposes to develop three sand quarries within the Gnangara Pine Plantation on tenements E70/3279 (Smokebush Hill), E70 - 3275 (Tamega Road) and M70- 1306 (Mulga Road) (‘the proposal’). Smokebush Hill is located in Two Rocks, approximately 55 kilometres (km) north of Per th Central Business District (CBD) . Tamega Road is located in Pinjar, approxi mately 47 km north of Perth CBD. Mulga Road is located in Gnangara, approxi mately 20 km north of Perth CBD. All three tenements are located within the City of Wanneroo, with Smoke bush Hill also falling within the Shire of Gingin.

Smokebush Hill, Tamega Road and Mulga Road are located on the Gnangara Mound, within the Gnangara Underground Water Pollution Control Area (UWPCA) and managed as a Priority 1 Public Drinking Water Source Area (PDWSA). The proposal would involve excavation of sand material to a maximum depth of 3 metres (m) from the likely future maximum winter water table.