AS PER BOQ

Re-development of 125mm dia bore hole by way of shifting of rig mounted compressor/compressor along with accessories and allied material required for the job, dismantling of India Mark-II hand pump, extraction of riser pipes, connecting rods and cylinder. Lowering of developing line and re-development of bore hole till clear potable water, free from silt/sand is obtained. Extraction of developing line and re-lowering of riser pipes along with connecting rods, cylinder assembly and re-installation of hand pump assembly, replacement of riser pipe/connecting rod/other material if required and testing of hand pumps. The job includes cost of POL consumed during re-development with air compressor, loading/unloading of material at site, handling, shifting and labour cost. (complete job)