corrigendum - repair / replacement and cleaning of sewage line , septic tank etc in various sectors of age charduar under ge ( north ) tezpur repair / replacement and cleaning of sewage line , septic tank etc in various sectors of age charduar under ge ( north ) tezpur , note 1: ( applicable for all parts / items ) : the bidders / contractors are advised to read tender document , all drawings & all corrigendum / amendments and general condition of contracts before entry / quoting the rates . note 2:- attention to bidder is hereby invited to upload revised boq if published during their bid submission . uploading of incorrect / pre-revised boq shall be treated as non bonafide and rejected . fixed credit has been given in technical documents which shall be taken into account during acceptance of bid / tender . , cleaning of septic tank by blocking temporarily the inlet with approved wooden plugs and bailing / pumping out water from septic tank / soak pit and scraping out sludge , organic matter / inorganic matter , soft / semi solid matter and removing to distance exc 50m but n . exc 100m from the starting point and filling in to shallow pits n . exc 1 . 5m deep and removal of wooden plugs and channeling the water back complete all as specified and as directed . , rough excavation in soft / loose soil and getting out for shallow pit n . exc 1 . 5 m deep and spreading leveling in layers the excavated earth on the shallow pits to cover the sludge in the pit and spraying adequate quantity of bleaching powder over the pit for hygienic condition complete all as specified and as directed . note: bleaching powder shall be measured and paid separately under the relevant item . , supply only bleaching powder conforming to is 1065 complete all as specified and directed . , cleaning of sewage line of any diameter and including manholes by manually or other means , to clear the sludge / blockage inside the sewage line and manholes and well flushing with water to drain out sludge etc , inside the sewage line from manhole to ease the flow of sewage including removing the sludge and re fixing manhole cover complete all as specified and as directed . , excavation in trenches n . exc 1 . 5m wide & n . exc 1 . 5m deep for sewage line getting out in soft / loose soil complete all as specified and as directed . , excavation over area n . exc 1 . 5m and getting out in soft / loose soil complete all as specified and as directed . , excavation over area n . exc 3m deep but exc 1 . 5 m and getting out in hard / dense soil complete all as specified and as directed . , demolition and breaking up drain pipes ( salt glazed ware , ac or reinforced concrete ) of internal dia 110mm to 200mm set in cement mortar including pcc haunching complete and removing to a distance n . exc 50m complete all as specified and as directed . , demolition of cement concrete in ground floor and pavings n . exc 15cm thickness ( below or above the ground level ) ( un-reinforced ) and removing to a distance n . exc 50m distance complete all as specified and as directed . , demolition of reinforcement cement concrete in roofs , floors and paving n . exc 15cm thickness ( below or above ground level ) complete all as specified and as directed . , demolition of brick work built in cement mortar including pillar etc below / above ground level etc and removing to a distance n . exc 50m complete all as specified and as directed . , m&l for pcc 1:3:6 type c2 using 40mm graded crushed stone aggregate as in foundation filling and mass concrete complete all as specified and as directed . , m&l for pcc 1:2:4 type b2 using 40mm graded crushed stone aggregate as in foundation filling and mass concrete of septic tank , soak well complete all as specified and as directed . , m&l for brick work with sub class b bricks , straight or curved on plan exc 6m mean radius , built in cm 1:4 complete all as specified and as directed . , m&l for brick work with sub-class b bricks straight or curved on plan exc 6m mean radius in half brick work built in cement mortar ( 1:4 ) complete all as specified and as directed , m&l for rendering 10mm thick plaster in cm 1:4 on fair faces of brick / concrete surfaces finished even and smooth with out using extra cement mixed with integral water proofing compound complete all as specified and as directed . note:- water proofing compound ( wpc ) will be measured and paid separately under the relevant item . , supply only water proofing compound conforming to is 2645 complete all as specified and as directed . , rendering 15mm thick plaster in cm 1:4 on fair faces of brick / concrete surfaces finished even and smooth without using extra cement mixed with integral water proofing compound will be paid separately . . note:- water proofing compound ( wpc ) will be measured and paid separately under the relevant item . , m&l for pcc 1:2:4 type b1 using 20 mm graded crushed stone aggregate as in channel , benching and coping of manhole complete all as specified and as directed . , s&f mild steel tmt bars 10mm dia cut to length bent to shape required including cranking bending and binding with and including ms wire annealed not less than 0 . 9 mm dia complete all as specified and as directed . , s&f mild steel tmt bars 8mm dia cut to length bent to shape required including cranking bending and binding with and including ms wire annealed not less than 0 . 9 mm dia complete all as specified and as directed . , m&l for pre cast rcc ( 1:2:4 ) type b1 using 20mm graded crushed stone aggreagates for cover slab of manhole / soak pit etc set in cement mortar 1:4 complete all as specified and as directed . , m&l for formwork to edges of concrete flats , treads , breaks in floors , window cills , concrete railings , openings in concrete walls , floor and roofs n exc 20 cm wide and sides of rcc / pcc bands in walls , horizontal or sloping and similar work exc 10cm but n exc 20cm wide on fair finished surfaces complete all as specified and as directed . , m&l for formwork to edges of concrete flats , treads , breaks in floors , window cills , concrete railings , openings in concrete walls , floor and roofs n exc 20 cm wide and sides of rcc / pcc bands in walls , horizontal or sloping and similar work exc 5cm but n exc 10cm wide on fair finished surfaces complete all as specified and as directed . , m&l for rcc ( nominal mix ) 1:1:5:3 type a1 using 20mm graded crushed stone aggreagate in slab , concrete flat surfaces making fair and smooth surfaces without using extra cement complete all as specified and directed , m&l for pcc 1:3:6 type c2 using 40mm graded crushed stone aggreagte for bed to drain pipes including packing under and hunching against side of pipes after laid and tested complete for 150mm bore pipe complete all as specified and as directed . , m&l for pcc 1:3:6 type c2 using 40mm graded crushed stone aggreagte for bed to drain pipes including packing under and hunching against side of pipes after laid and tested complete for 200mm bore pipe complete all as specified and as directed . , m&l for 150mm dia salt glazed stone ware draine pipes laid in trenches and jointed complete all as specified and as directed . , m&l for 200mm dia salt glazed stone ware draine pipes laid in trenches and jointed complete all as specified and as directed . , s&f 110mm dia pvc ( swr ) pipes single socketed in any length with rubber ring joints laid in trenches or in floors incld dismantling old pipes complete all as specified and as directed . , s&f 75mm dia pvc ( swr ) pipes single socketed in any length with rubber ring joints laid in trenches or in floors incld dismantling old pipes complete all as specified and as directed . , s&f 75mm bore pvc ( swr ) bends complete all as specified and as directed . , s&f 110mm bore pvc ( swr ) bends complete all as specified and as directed . , s&f 110mm bore pvc ( swr ) p trap complete all as