Details: development of tube well in accordance with is : 2800 (part i) and is: 11189, to establish maximum rate of useable water yield without sand content (beyond permissible limit), with required capacity air compressor, running the compressor for required time till well is fully developed, measuring yield of well by “v” notch method or any other approved method, measuring static level & draw down etc. by step draw down method, collecting water samples & getting tested in approved laboratory, including disinfection of tubewell, all complete, including hire & labour charges of air compressor, tools & accessories etc., all as per requirement and direction of engineer-in-charge. gravel packing in tubewell construction in accordance with is: 4097, including providing gravel fine/ medium/ coarse, in required grading & sizes as per actual requirement, all complete as per direction of engineer-in-charge. supplying, assembling, lowering and fixing in vertical position in bore well, unplasticized pvc
Sector: Urban Authority