A guide to leading practice sustainable development in mining

community unrest and political change which resulted in the devolution of
significant responsibilities and power to the district government level.
Charter of the Steering Committee and Working Groups
A detailed charter encompassing the roles and responsibilities of the
committee members was negotiated and agreed to prior to any technical
discussions. The charter also included mechanisms for reaching agreement
and resolving conflicts. A secretariat was established to coordinate the
meetings and documentation for the quarterly meetings. A co-ordinator and
two independent facilitators were appointed to ensure that all parties were
given equal opportunities to participate.
Closure Outcomes
Minimising the ongoing impacts of acid rock discharges, in particular
manganese (Mn) into the surrounding water catchments was the key driver
for the selection of final land use options for the single pit, acid waste rock
disposal areas and tailings dam areas. These areas are restricted zones,
under a Protected Forest decree and the areas are patrolled and monitored
by a permanent group of Community Forest Rangers. Any illegal activities or
incursions such as logging, alluvial mining, farming and burning are reported
to Department of Forestry and Police officials. A constructed wetland of
20hectares provides a passive treatment system for pit discharges and enables
Mn levels to meet agreed discharge (2 mg/L) and ambient water quality (0.5
mg/L) standards at release points and in the Kelian River respectively.
The areas listed above which could not be rehabilitated with trees (total of
829ha) have been replaced by rehabilitating other areas of equivalent size.
One area was within the Contract of Work (CoW) on the Lingau Plateau
(379 ha), an area which had been previously disturbed by logging prior to
the commencement of mining; the second area was away from the site in
area called Bukit Suharto (450ha) which was another area which had been
previously disturbed by logging and fires. The remainder of disturbed areas
within the CoW (376 ha) which did not contain potentially acid forming
materials and could be rehabilitated were planted with local native tree, shrub
and vine species and enhanced with 10% native fruit tree mixture. These
rehabilitation areas and other non-restricted areas within the CoW permit a
range of activities in accordance with Protected Forest legislation including:
Harvesting of non-wood products e.g. fruit, honey, bamboo and rattan
Educational activities e.g. research, field visits
Aquaculture and fishing
Ecotourism e.g. bird watching, bush walking, swimming
During the operation of the mine, a farmer training centre (Yayasan Anum
Lio – Clear Water Foundation) was established in a village approximately
30 minutes from the mine site. This centre provided both off site technical
142 LEADING PRACTICE SUSTAINABLE DEVELOPMENT PROGRAM FOR THE MINING INDUSTRY