CLEANING, REPAIR/REPLACEMENT OF DAMAGED SEWAGE LINE, MANHOLES, SUMPS AT KANCHRAPARA UNDER GE BARRACKPORE

Amount

Cleaning and de-sludging, excreta, night soil etc of existing septic tank, soak well and sewage sump completely of solid/liquid sludge by pumping or manually from inside the septic tank, soak well and sewage sump and removal of sludge and depositing in excavated pits (required size and depth) exceeding 50m but not exceeding 100m. Top layers of excavation pit covered by layers of 150mm depth earth spreading with bleaching powder @ 500 gm per Sqm for disinfections purpose complete all as specified and directed.

De-sludging/de-silting and cleaning of existing manholes and gully traps etc of any depth including taking out sludge/ slit and other foreign materials from manholes and gully traps of any size and staking the removed silt/sludge and depositing in excavated pits (required size and depth) exceeding 50m but not exceeding 100m including taking precautionary measured such as safty belts, cell torch for lighting inside the manholes and gully traps, etc. Top layers of excavation pit covered by layers of 150mm thick earth spreading with bleaching powder @ 100 gm per Sqm on the slit/ sludge to remove to avoid bad smell and disposal of slit/ sludge by transport upto 50m complete all as specified and directed.

Systematically cleaning and de-silting/de-sludging of blocked sewage/ waste pipe line 150mm dia of any description by rodding with using steel rod or split bamboo sticks thoroughly from both sides between adjacent manholes still to get clear flow of sewage line is observed, passing knots, kamti and disc of required size or pumping out liquid waste /sewage, plugging and diverting the flow to the drain if necessary and stacking the removed silt/sludge and depositing in excavated pits (required size and depth) exceeding 50m but not exceeding 100m. Top layers of excavation pit covered by layers of 150mm thick earth spreading with bleaching powder @ 200 gm per Sqm for disinfections purpose complete all as specified and directed.

Systematically cleaning and de-silting/de-sludging of blocked sewage/ waste pipe line 100mm dia of any description by rodding with using steel rod or split bamboo sticks thoroughly from both sides between adjacent manholes still to get clear flow of sewage line is observed, passing knots, kamti and disc of required size or pumping out liquid waste /sewage, plugging and diverting the flow to the drain if necessary and stacking the removed silt/sludge and depositing in excavated pits (required size and depth) exceeding 50m but not exceeding 100m. Top layers of excavation pit covered by layers of 150mm thick earth spreading with bleaching powder @ 200 gm per Sqm for disinfections purpose complete all as specified and directed. (Note for Item No. 1.00 to 4.00 : Excavation of trenches, disposal of surplus soil and bleaching powder is deemed to be included in the quoted unit rates however quantity of sludge portion only will be measured and paid. )

Taking out old brick bats of any size from filter bed segregating serviceable brick bats and unserviceable brick bats cleaning the waste material from surface of serviceable brick bats by flushing with water, keep aside serviceable brick bats for reuse complete all as specified and directed.

M&L for loose filling with brick bats in filter bed gauge 80 to 150 mm in filter bed complete all as specified and directed.

Taking out of existing Nahani trap/floor trap CI grating and cleaning of sludges/slit from Nahani trap/floor trap including roding CI pipe from Nahani trap/floor trap to gulley trap etc in position including removing of rubbish/sludge to a distance exceeding 250m not exceeding 500 m complete all as specified and directed.

Cleaning of chocked / blocked WC/EWC of any type by taking out blocked wastes/ slit and mud, after opening the oval access door of CI bend, CI branch piece (T) upto first manhole and placing the existing ovel access door in original position, washing down throughly for free flowing complete including removing rubbish/ sludge to a distance exceeding 250m but not exceeding 500m complete all as specified and directed.

Taking out blockage of gulley trap cover and CI grating and cleaning of sludges/silt from gully traps including taking out blocked waste/silt and mud to first manhole and placing the existing CI grating, gully trap cover etc in original position, including removal and washing down throughly for free flowing complete all as specified and directed.

Demolition of cement concrete (unreinforced) as in ground floor not exceeding 15 cm thickness (below or above ground level) complete all as specified and directed.

Demolition of reinforced cement concrete (reinforcement cut as required to facilitate demolition) of any description and in any position not otherwise specially provided for complete all as specified and directed.

Dismantling of cast iron or reinforced concrete drain pipe of 100 mm bore jointed in cement mortar and taking out of trenches or wal complete all as specified and directed.

Dismantling of cast iron or reinforced concrete drain pipe of 75 mm bore jointed in cement mortar and taking out of trenches or wal complete all as specified and directed.

Demolition of breaking up drain pipe of 150 mm internal dia (salt glazed ware) set in cement mortar complete all as specified and directed.

Demolition of breaking up drain pipe of 100 mm internal dia (salt glazed ware) set in cement mortar complete all as specified and directed.

Demolition of breaking up drain pipe of 75 mm internal dia (salt glazed ware) set in cement mortar complete all as specified and directed.

Demolition of brick work or stone/boulder masonry, built in cement mortar or cement lime mortar including all quoins, arches, pillar etc but excluding ashlars facing dressed stonework & precast concrete articles complete all as specified and directed.

Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr in depth for foundation or for shafts, well, cesspits, pier holes etc not exceeding 10 Sqm on plan and not exceeding 1.5 mtr in depth and getting out in soft/loose soil complete all as specified and directed.

Returning, filling in, including spreading leveling, watering and well ramming in layers not exceeding 25cm, soil complete all as specified and directed.

Removing surplus excavated materials to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting points in soft/loose soil complete all as specified and directed.

M&L for brick work with sub class 'B' bricks locally available best quality straight or curved on plan exceeding 6m mean radius, built in cement mortar (1:4) complete all as specified and directed.

M&L for rendering 15mm thick in cement mortar (1:4) on brick work or concrete surfaces of wall, finished even and smooth without using extra cement complete all as specified and directed.

S&F for 100mm bore sand cast iron soil, waste and vent pipes in any length with or without ears with cement joints, laid in trenches or in floors complete all as specified and directed.

S&F for 75mm bore sand cast iron soil, waste and vent pipes in any length with or without ears with cement joints, laid in trenches or in floors complete all as specified and directed.

S&F of 100 mm dia Cast Iron bends (any radius) diminishing piece or tapers (larger bore measured) complete all as specified and directed.

S&F of 100mm dia CI branch pieces, single (equal or unequal), ordinary or inverted (spigot or socket type) or with parallel branches complete all as specified and directed.

M&L for PCC (1:4:8) type D-2 (using 40 mm graded crushed stone aggregate) as in foundation filling and mass concrete complete all as specified and directed.

M&L for precast reinforced cement concrete (1:2:4) type B1 (using 20 mm graded crushed stone aggregate) as in cover slab of drain/manhole and similar articles set in cement mortar (1:4) complete all as specified and directed. (NOTE: Cost of Form Work is deemed to be inclusive of unit rate quoted by the contractor and reinforcement shall be measured and paid Separately.)

S&F of TMT bars 6mm to 8mm dia and over cut to length bent to shape as required including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia complete all as specified and directed.

M&L for TMT bars 10 mm dia and over cut to length bent to shape as required including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia complete all as specified and directed.

M&L for 150mm bore salt glazed stone ware drain pipe grade 'A' laid in trenches and jointed in cement mortar (1:1) complete all as specified and directed.

M&L for PCC (1:3:6) type C2 (using 40mm graded crushed stone aggregate) as in concrete bed to drain pipe 150mm bore including packing under and haunching against the side of pipe after they are laid and tested complete all as specified and directed.

M&L for 100mm bore salt glazed stone ware drain pipe grade 'A' laid in trenches and jointed in cement mortar (1:1) complete all as specified and directed.

M&L for PCC (1:3:6) type C2 (using 40mm graded crushed stone aggregate) as in concrete bed to drain pipe 100mm bore including packing under and haunching against the side of pipe after they are laid and tested complete all as specified and directed.

M&L for 75mm bore salt glazed stone ware drain pipe grade 'A' laid in trenches and jointed in cement mortar (1:1) complete all as specified and directed.

M&L for PCC (1:3:6) type C2 (using 40mm graded crushed stone aggregate) as in concrete bed to drain pipe 75mm bore including packing under and haunching against the side of pipe after they are laid and tested complete all as specified and directed.

S&F for 110 mm bore PVC (SWR) pipes single socketed in any length with rubber ring joints laid in trenches or in floor including taking down old unserviceable pipe complete all as specified and directed.

S&F for 110 mm bore PVC (SWR) pipes single socketed in any length with rubber ring joints fixed to wall including taking down old unserviceable pipe complete all as specified and directed.

S&F of 110 mm bore PVC (SWR) bends any radius provided with access door complete all as specified and directed.

S&F of 110mm bore PVC(SWR) junction single, (single T) equal or unequal complete all as specified and directed.

S&F of 110mm bore PVC(SWR) junction single, (single T) equal or unequal providing access door complete all as specified and directed.

S&F for 110mm bore PVC(SWR) junction single, (double T) equal or unequal complete all as specified and directed.

S&F for 110mm bore PVC(SWR) junction single, (double T) equal or unequal providing access door complete all as specified and directed.

S&F of 110 mm bore PVC (SWR) vent cowl complete all as specified and directed.

SENCO

R.S. COMPANY

INDUSTRIAL CONSTRUCTION

NANDY ENTERPRISE

CHATTERJEE ENTERPRISE

azad enterprise