THE MINISTER OF STATE FOR COAL (SHRI N.T. SHANMUGAM)
(a): The quantum of overburden removed in the case of Western Coalfields Limited during the last three years is as under:
(In million Cubic meters) 1999-20000 95.530 1998-1999 91.588 1997-1998 85.302
(b)&(c): Overburden is used for back filling the voids created due to extraction of coal to the extent possible and depending upon the geo-mining conditions. There after, it is levelled and vegetated with plantation of different species.
There is, per se, no scheme for utilisation of overburden dumps using environmental friendly measures. However, at all places, afforestation through plantation of suitable trees on overburden is taking place to have a green cover as provided in the environmental management plans of the opencast mining projects.