Compliance Monitoring Report for Mines and Quarries - National ...

Overburden/Interburden& OthermaterialsMechanism of Dumpingand ArrestingPit slope Angle, BenchHeight and Length ofWidth4. Environmental AspectsAir EnvironmentWater EnvironmentNoise EnvironmentBiological Environment5. Approach/AccessRoad ConditionsWater Drainage System6. Environment andProgressive RestorationRestorationEnvironmental Bondthe pre-determined site. A check dam was underconstruction to arrest the waste materials.The Pit slope was in-between 55 to 70 0 and bench heightabout 20meters from the base.The management has not carried out monitoring of air,water and noise at the mining site.The mine has been in operation for about 14 years andthere was no vegetative cover at the mining area.The management has not carried out afforestationprogram.Approach road to the mine area was about 6 km whichtakes-off from 28 km point from Phuentsholing-Thimphuhighway. The access road is pitched with side and crossdrain to channel the surface water.The restoration of the mine was primary focused on theconstruction of check dam.Environmental bond deposit Nu.15,45,840.007. Others The management has employed 55 workers.The undersize/rejects materials generation was about 20 to30%.Gumboot was supplied to the regular staff only.Channeling of mine water was not developed.1.10 RecommendationThe Pit slope of the mining area and waste disposal site is in-between 55 to 70 0 . Themanagement has to operate the mine and dispose the waste in such a way, that it is easier toattend the final pit slope of 45 0 .The height of the waste disposal site maintained very high without proper benching. Themanagement has to decrease the height with proper benching.37