CLEANING OF SEPTIC TANK MANHOLES SEWAGE LINE AND REPAIR TO SEAWGE LINE AND DRAINS AT AF STATION CARNICOBAR

Amount

Taking out RCC cover slab of sptic tank of the following capacity carefully, taking out he sludge including foul water, collect th esludge in closed container and burried the same in earth pit below 30 cm of the ground level with in the defence land where directed by the Engineer-in -charge to a distance exe 250 m and not exe 500 m, returning, filling in the earth in excavated pit after complete remaoval of sludge from thes container, inlet and outlet pipe, M.S ring and septic tnak complete cleaning with fresh water as directed and placing the RCC cover slab in position and set in CM 1:6 complete all as directed for 200 Users capacity.

All as per item no.1 here in before but for 100 Users

All as per item no.1 here in before but for 50 Users

All as per item no.1 here in before but for 25 Users

Cleaning of manholes to a depth of up to 600 mm complete all as directed by Engineer in Charge.

All as per item no. 5 here in before but depth of manhol exceeding 600mm bit bot exceeding 1200mm complete all as directed by Engineer in Charge.

All as per item no. 5 here in before but depth of manhol exceeding 1200mm bit bot exceeding 1800mm complete all as directed by Engineer in Charge.

Cleaning of chocked sewage line of 100 mm dia of any description and any dia from man hole to man hole cleaning the eline with cleaning rod and binding wire and flush with fresh water and disposed off the sludge all as specified and directed. (Distance in between man hole shall be measured)

All as per item no. 8 here in before but sewage line of 150mm dia

Cleaning of blockage of floor trap, gully trap, IWC/EWC etc complete all as specified and as directed.Note Cleaning of blockage of floor trap, gully trap, IWC/EWC shall be treated as one Job for payment pupose).

Demolition of reinforced dcement concrete of any description as in man hole/septic tank cover slabs in any position complete all as specified and as directed.

M&L for precast reinforced cement concrete of any description as in man hole/septic tank cover slabs in any position complete all as specified and as directed.

M&L for TMT bars 8 to 10mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooking ends and binding with and including mild steel wires (annealed) not less than 0.6 mm dia or secured with clips complete all as specified and as directed.

Demolition of brick work/PCC block masonary built in cement mortar of any description and at any position complete all as specified and as directed.

M&L for providing precast cement concrete type C1, (1:3:6) (20 mm graded stone aggregate) block masonary with solid blocks exc 10 cm in width and setting in cement mortar 1:4 complete all as specified and as directed.

Demolition of cement concrete (ureinforced) of any description and in any position not otherwise specially provided for coping, benching etc complete all as specified and as directed.

M&L for PCC 1:2:4 type B-1 using 12.5 mm graded stone aggregate as in benching and coping complete including necessary form work if required all as specified and as directed.

M&L for rendering 10 mm thick on fair faces of concrete wall surface in cement mortar 1:4 and finishing the surface even and smooth without using extra cement complete all as specified and as directed.

Excavation in trenches n.exc 1.50 m wide and n.exc 1.50 m in depth for foundation etc or for shafts, wells, cess pits, man holes, pier holes ets n.exc 1.5 m in depth and gettting out soft/losse soil complete all as specified and as directed.

Dismantling of cast iron or reinforced concrete drain pipes 100 mm dia (internal) jointed in cement mortar including PCC haunching and bed concretes and taking out from trenches if requird (excavation in trenches will measured and paid separately) complete all as specified and as directed.

All as per item No 20 above but dia of pipe 150 mm complete all as specified and as directed.

M&L for concrete bed to drains to drain pipes including packing under completely surrounding pipes with cement concrete 1:3:6 type C2, with using 40mm graded stone aggregate after they are laid and tested in for 100 mm dia pipe complete all as specified and as directed.

All as per item No 22 above but dia of pipe 150 mm complete all as specified and as directed.

S&F (spun pipes) cast iron soil, waste and vent pipes 100 mm dia in any length with or without ears, with cement joints laid in trenches or in floor complete all as specified and as directed by Engineer in Charge.

All as per item No 24 above but dia of pipe 150 mm complete all as specified and as directed

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

Removing excavated material (soil) exc 50 mtr n.exc 250m and depositing where asdirected at a level n.exc 1.5m above the starting pointt complete all as specified and as directed.

Demolition and breaking up drain pipes upto 110 mm dia (Salt glazed ware, AC or reinforced concrete) set in cement mortar all as directed by Engineer in Charge.

S&F PVC (SWR) pipes 110 mm dia, single socketed, in any length with rubber ring joints, fixed to wall complete all as specified and as directed.

S&F PVC (SWR) bend 110 mm dia with access door complete all as specified and as directed.

S&F PVC (SWR) bend 110 mm dia with out access door complete all as specified and as directed.

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

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

S&F PVC (SWR) pipes 75mm dia, single socketed, in any length with access door complete all as specified and as directed.

S&F PVC (SWR) bend 75 mm dia with access door complete all as specified and as directed.

S&F PVC (SWR) bend 75 mm dia without access door complete all as specified and as directed.

S&F PVC (SWR) 75 mm bore vent cowl complete all as specified and as directed.

S&F cast iron floor trap 100 mm dia with gratings includings jointing to waste pipe fixed in cement concrete type B-1 (1:2:4) using 20mm graded stone aggregate complete all as specified and as directed.

S&F cast iron floor trap 75 mm dia with gratings includings jointing to waste pipe fixed in cement concrete type B-1 (1:2:4) using 20mm graded stone aggregate complete all as specified and as directed.

S&F PVC (SWR) gully trap 125/110 mm, setting snd jointing with solvent cement concrete type B-1 1:2:4 complete all as specified and as directed.

S&F 50 mm High density poltthylene pipes (HDPE) of pressure rating 6 Kgf/cm2 fixed to walls, complete all as specified and directed.

Preparation of old brick/concrete, plastered/ unplastered surfaces of walls, pillars, cornices by brooming down with steel wire brushing, scrapping down smoke soot, moulds, moss and efflorescent salts and trading oil and greasy spots and applying one coat of cemant base paint complete all as specified and directed.

DHAKSHNA MOORTHY AND SON

Ravi Enterprises

Chandra Construction Enterprises

MS ASHOK T NAIR