A Cultural Heritage Management Plan (CHMP) was prepared in accordance with Aboriginal Heritage Regulations 2018 and in in consultation with the Wurundjeri Woi-wurrung Cultural Heritage Aboriginal Corporation. The approved CHMP (No. 18510) included desktop assessment, standard and complex components.

The standard assessment did not identify any Aboriginal cultural heritage. Archaeological potential was assessed as low to moderate for low numbers of subsurface stone artefacts.

The complex assessment excavated a total of 333.25 m2. A total of 45 m2 contained 23 subsurface stone artefacts. The stone artefacts were registered as LDAD VAHR 7922-1828 (Montrose Quarry LDAD).

The artefact scatter cannot be avoided as it is located within the proposed pit boundary. As part of the CHMP conditions relating to the repatriation of cultural heritage, soil retention and RAP observation of topsoil stripping have been included. As the Sponsor of the CHMP, Boral is responsible for ensuring all works are undertaken in accordance with the CHMP.

The approved CHMP sets out the circumstances by which the activity can be conducted in compliance with the Aboriginal Heritage Act 2006. As the Sponsor of the CHMP, Boral is responsible for ensuring all works are undertaken in accordance with the CHMP.

The CHMP provides for the salvage and relocation of known Aboriginal artefacts within the subject site to ensure they are out of the path of the proposed quarry extension. As part of the CHMP conditions relating to the repatriation of cultural heritage, soil retention and RAP observation of topsoil stripping have been included. As the Sponsor of the CHMP, Boral is responsible for ensuring all works are undertaken in accordance with the CHMP.

The management plan also includes protocols in the case of unknown heritage being uncovered.