(1) The overburden, waste rock and non-saleable marble generated during prospecting or mining operations for marble shall be stored separately in properly formed dumps on grounds earmarked.
(2) Such dumps shall be properly secured to prevent the escape of material in harmful quantities which may cause degradation of the surrounding land or silting of water courses.
(3) Wherever possible, such waste rock or overburden or other rejects, shall be backfilled into the worked out marble quarry or mine, where marble has been recovered upto the optimum depth, with a view to restore the land to its original use or desired alternate use, as far as possible, and where the backfilling is not feasible, the waste dumps shall be suitably terraced and stabilised by planting vegetation or otherwise.