Drainage Works Tenders

Straight or raking cutting in existing brickwall fair cutting n exc 10 cm width or girth on expossed surfaces of brickwork such as in splays, chamfers, etc including rubbed finish and wast as in making weep holes in existing drainage wall making good complete all as specified and directed.

Lump sum price worked out by the contractor for AREA DRAINAGE WORKS as listed in Schedule ‘A’ Part- VII (Ref prepriced schedule attached seperately)

"Providing and laying DWC (SN8) pipes conforms the IS 16098 (Part 2): 3013 Structured-Wall plastics piping systems for NON- Pressure drainage and sewerage –Specification including jointing with seal ring conforming. 250 mm. dia. DWC (SN8) Pipes"

Supply, laying, jointing, testing, commissioning of HDPE Double wall corrugated pipe of dia 150mm for non pressure underground drainage and sewerage with smooth internal & corrugated external surface confirming to IS 16098:Part-2 2013 with spigot or plain end with necessary jointing of DWC HDPE pipes, clean and prepare the pipe ends, then use either a push fit method with a rubber ring and coupler or a specialized jointing jack to connect them (as per manufacturer instruction) complete all as specified and directed.

Development of tube well in accordance with IS : 2800 (part I) and IS: 11189, to establish maximum rate of usable water yield without sand content (beyond permissible limit), with required capacity air compressor, running the compressor for required time till well is fully develo ped, 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, i/c 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.