The environmental management program of PT. Freeport Indonesia covers all its operation activity aspects and not only to what are related to mining. We have a waste management system that comprehensively applies the 3R – reuse, recycling, reduction principles. Our waste minimizing programs involves the reduction of waste and excavation of materials with environment friendly products. Large container, oil residue, paper and used tires are locally reused with the environment friendly system. Other materials that can be recycled, such as metal and used battery, are collected and stored in a temporary storage area to further on be recycled in accordance with the regulation of the Government of Indonesia.

Materials that are recycled or reused in form of: used lubricating oil, which are collected from workshops in the working area of PTFI, are used as alternative fuel mixture in the Mahaka Lime Factory and Concentrate Drying Factory at the port site; used batteries of light or heavy vehicles are sent to the third party outside the working area of PTFI, where the parts of those batteries are separated, recycled and reused; Other materials, such as used tires, used iron, used drums are utilized by the third party.

Various wastes, including a small amount of hazardous waste, are separated at the original point. The collection, packing, and storage of hazardous waste, caused by the metal content test work (assay) on the ore sample, analytical laboratory, medical means, and other processes, are managed in accordance with the regulation of the Government of Indonesia. The hazardous is transported to the domestic processing industry in possession of the license and does not cross the international borders. In 2010 PT. Freeport Indonesia produced 7,745 tons hazardous waste and around 32,000 tons non hazardous waste.

We reprocess the waste of cooking oil into bio-diesel fuel

The non hazardous waste of PT. Freeport Indonesia is handled at three specified locations, namely the Final Disposal Location (TPA) for immoveable waste, and a TPA for scattered waste and other waste, which is completed with a collection and processing system. Our 10 Waste Water Processing Installations (IPAL) are managed in accordance with the regulation of the Government of Indonesia. The waste water quality from all those installations is periodically monitored with regard to the pH parameter, biological oxygen demand (BOD), chemical oxygen demand (COD), total suspended compound and fat, as well as oil in accordance with the quality standard.

We develop a plan and obtain the approval from the Ministry of Environment to utilize dust from the boiler unit at our electricity generator means that uses coal as fuel, mixed from 5% to 10% cement needed for the infill project in our operation area. This is useful to utilize our dust heap for productive activities. More than 350,000 cubic meters dust were used in 2008.

During 2010, PT. Freeport Indonesia had implemented several activities related to the management of biodiversity in the work contract area at three monitoring areas, namely the highland area, lowland area and river estuary area. Monitoring at the highland area is carried out in the Ertsberg and Grasberg areas, at the lowland area in the sedimentation area of the remaining mine sand (sirsat) in Tanggul Ganda, and at the river estuary area is conducted at Mawati River, Otakwa River, and Ajkwa Island at the estuary of Ajkwa River.