CLEANING OF SEWAGE LINES,MANHOLES,SEPTIC TANKS AND SOAKAGE WELLS AT MD AND OTM ACCNS AT WEST SIDE OF LEHL MARG UNDER GE (S) BINNAGURI

Amount

Excavation in trenches n.exc 1.50m wide and n.exc 1.50 m in depth for foundation or for laying of sewage line etc and getting out in soft/loose soil complete all as specified and as directed

All as per item No 1 here-in-before but exc 1.50 and n.exc 3.00m in depth.

Dismantling and breaking up 100/150 mm drain pipe (salt glazed stone ware or reinforced concrete) set in cement mortar alongwith concrete bed of drain pipes as in damaged portion of sewage line and work in foul position complete all as specified and as directed.

All as per item No-3 here-in-before but 200mm dia

M&L for 100mm thick concrete bed to drain pipe (100mm bore) with PCC (1:4:8) type D2 using 40mm graded stone aggregate including packing under and haunching aginnst the sides of pipe after they are laid jointed and tested complete all as specified and as directed.

All as per item No-5 here-in-before but bore of drain pipe 150mm

All as per item No-5 here-in-before but bore of drain pipe 200mm

M&L for salt glazed stone ware drain pipe grade-A, conform to IS-651-1980, 100mm dia laid in trenches and jointed in cement mortar (1:1) complete all as specified and as directed.

All as per item No. 8 here-in-before but 150 mm dia

All as per item No. 8 here-in-before but 200 mm dia

Demolition of brick work built in cement mortar and separating serviceable bricks for re-use in the work and removing unserviceable bricks from site of works complete all as specified and as directed.

M&L for brick work with sub class 'B' bricks (locally available 1st class bricks) straight or curved on plan of any radius built in cement mortar (1:4) for manholes/septic tank/soak well etc complete all as specified and as directed.

All as per Srl item No 12 here-in-before but except bricks. (Note : Old serviceable bricks from Srl item No 11 shall be re-used under this item)

M&L for brick work with sub class 'B' bricks (locally available 1st class bricks) straight or curved on plan of any radius built in cement mortar (1:4) fas in half Brick thick wall complete all as specified and as directed.

Material & Labour for 15 mm thick rendering in cement mortar (1:4) and top layer of 5mm thick mixed with water proofing compound @ 3% by weight of cement or as per manufacturer's instructions, on fair faces of bricks work or concrete surfaces, finished even & smooth without using extra cement complete all as specified and as directed. (Note : Supply only water proofing compound shall be measured & paid separately).

Material & Labour for 15 mm thick rendering in cement mortar (1:4) in one layer on other than fair faces of brick work, finished even & smooth without using extra cement complete all as specified and as directed.

Supply only integal water proofing compound of approved make/brand complete all as specified and as directed.

Cutting into existing bituminous road/PCC footpath and making good the disturbed surfaces with PCC (1:2:4) type B2 all as specified and as directed. Note :- Length of road cutting 5 m(appx),widtth 30cm(appx) and depth N.exc 45cm(appx)

Returning, filling in, incl. spreading, leveling, watering & well ramming in layers n.exc 25 cm in soft/loose soil as in pit or trenches all complete as specified and as directed.

Removing excavated surplus soils to a distance n.,exc 50 m and depositing where directed at a level n.exc 1.50 m above the starting point all complete as specified and as directed.

M & L for cleaning of manholes of any type/size and depth upto 1.50 Mtr by removing the cover slab,bailing out water, removing sludge, mud and other accumulated solids, semi solids and other materials from bottom of the manholes by manual/mechanical method and also cleaning the mouth of sewage line of any dia connected to manholes either by water pressure / rodding /flushing or any other suitable means at their own arrangements so as to remove the blockage and fully functional the MH to the entire satisfaction of Engineer-in-charge.The sludge/solid content obtained from manholes/Septic Tanks should be deposited after digging earth pit at a separated place/area n.exc 50mt away and after deposition, the pit should be covered/ re-filled with earth/sand with 30cm Depth (Minm) and spreading Bleaching powder @ 0.50 KG per sqm sorounding upto 1.0 M radius from outer face of pit and repositioning the RCC/CI cover slab all as directed.

All as per Item No 20 above but for Manhole exc 1.5M but N.exc 3.0M in depth complete all as specified and as directed .

M & L for cleaning of septic tanks 100 users of any type/size and depth by removing the cover slab,bailing out foul water, removing sludge, night solids and other accumulated solids, semi solids and other materials from bottom of the septic tanks by manual/mechanical method and also cleaning the mouth of connected sewage line of any dia either by water pressure / rodding and other suitable means at their own arrangements so as to remove the blockage and fully functional the septic tanks to the entire satisfaction of Engineer-in-charge.The sludge/solid content obtained from Septic Tanks should be deposited after digging earth pit at a separated place/area and after deposition, the pit should be covered/ re-filled with earth/sand upto 30 cm (minm) and spreading Bleaching powder @ 1.00 KG per sqm sorounding upto 1.0 M radius beyond outer face of pit and repositioning the RCC/CI cover slab of septic tank complete all as specified and as directed.

All as per Item No 22 above but for 50 users all as specified and as directed .

All as per Item No 22 above but for 25 users all as specified and as directed. Note for item Nos 20 to 24:- Measurements of solid sludges without sulage water shall only be recorded after percolation of sulage water. Quted rate are inclusive of Earthwork,spreading of bleaching powder and removing of sulage water. The complain of blockage shall be cleared/rectified to the complete satisfaction of Engineer-in-charge within the same day.The contractor or his representative alongwith 2 (two) sweepers will report at 9:00 hours to the sub div for complains and submit completion report at 17:00 hours every day to the Engr-in-Charge. In case of non attendance of any sweeper to the Sub Div, an amount of Rs 100.00 for each sweeper will be levied from contractor.

Demolition of reinforced cement concrete of any description and in any position not otherwise specifically provided for complete all as specified and as directed.

Material & Labour for precast RCC (1:2:4) type B1 with using 20 mm graded stone aggregate as in cover slab of gully trap/septic tank/manhole etc incl necssary formwork complete all as specified and as directed.

M&L TMT bar (Fe500 D) 8mm dia as reinforcement. cut to length, bent to shape required including cranking bending, hooking ends and binding with and including mild steel wire (annealed) not less than 0.90mm dia complete all as specified.

All as per Item No- 27 here in above but TMT bar 10mm dia and Over Ditto -

All as per Item No- 27 here in above but MS round bar 10mm to 12mm dia as in handles of MH cover slabs.

Dismantling of old damaged cast iron/PVC soil/waste/vent pipe 100mm/110mm/ /75 mm bore with all fittings in any position all as specified and as directed.

S&F 110mm PVC (SWR) pipes single socketed in any length with rubber ring joints fixed to walls using stack clamps out of 50 mm x 5 mm flat iron and 16 mm dia round bar stays, including bolts and nuts and securing ends of stays to wall or roof, complete all as specified and directed.

All as per item No 29 above but bore of pipe 75mm complete all as specified and as directed.

S & F PVC (SWR) bends any radious suitbale for 110 mm bore complete all as specified.

All as per item No 31 above but bore of pipe 75mm complete all as specified and as directed.

S&F in repairs 110mm dia PVC (SWR) branch piece/junction single (single 'Y') equal or unequal with acess door complete all as directed.

S&F in repairs 110mm dia PVC (SWR)Vent cowl complete all as directed.

M&L in repair for cast iron floor trap 75 mm dia with grating including jointing to waste pipe all as specified and as directed.

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

M&L for plain cement concrete 1:3:6 type C-2 (using 40 mm graded stone aggregate ) as in foundation, fillng and mass concrete etc complete all as specified and directed.

M&L for plain cement concrete 1:2:4 type B-2 (using 40 mm graded stone aggregate ) as in foundation, fillng and mass concrete etc complete all as specified and directed.

Taking down cement or cement lime plaster any description from walls/ceiling etc including racking out joints, hacking for key & scrubbing down with water complete all as specified and directed.

M&L for providing RCC 1:2:4 type B-1( using 20mm graded stone aggregate) as in cast in situ lintels upto 1.5 M span, cills and other similar bands, plinth courses, parapets, copings, bed plates and the like weathering and slightly rounded or angles and throating as directed including Reinforcements and formwork complete all as specified and directed.

M&L for removing the plants from the surface of the building of area exc 0.2 sqm but n.exc 0.36 sqm each with complete roots, applying recommended chemical to prevent further growth as directed, making good the disturbed surfaces with cement morter 1:3 and applying the same surface finish as per existing to math with the sorrounding surfaces including removal of debries etc out side of the premises compete all as specified and as directed by the Eng-in-charge.

M&L for repairs to holes of Rat/Mouse of Manhole faces/surfaces,PCC benching,drains & Channels etc and filling the same with PCC (1;2;4) type B1 (using 20mm graded Aggregate) and finishing to the surfaces complete all as specified and directed .

Cleaning the blockage of Indian/European type water closet by using hand pump with rubber bucket or by opening the inspection eye and using cleaning rod and Toilet cleaner till achieved the clear flow of water and finally cleaning with flush water complete all as directed by the Engineer in charge.

Cleaning the blockage of Floor/Nahani trap by using hand pump with rubber bucket or by using cleaning rod and Toilet cleaner till achieved the clear flow of water and finally cleaning with flush water complete all as directed by the Engineer in charge.

Cleaning blockage of sewer lines in any position by Roding from both sides between two adjacent manholes or from inspection chamber to manhole or from gully trap to inspection chamber or through inspection eye of any depth till clear flow of sewer/water is observed complete all as specified and as directed for the 100/150mm dia (internal) of sewer pipe linescomplete to walls and ceilings or laid in floors all as directed. (Note:- Unit rate quoted shall deemed to be included of cleaning of scrubs, grass small roots etc, around the manholes, inspection chamber at adjacent to the pipe lines cleaning etc and along sewage lines wherever required or as directed and no extra payment shall be made on this account).

All as per Item No-38 here in above But for 200mm dia(internal) pipe line - ditto -

SCHEDULE OF CREDIT Rate quoted by the Tenderer for this schedule should not be less than rate assessed by the department shown on estimated rate column for the respective items,any lower rate qouted by the Tenderer will not be cosidered and total amount under col No 53 will be adjusted accordingly cosidering rate inserted by the MES.

Old unserviceable SGSW pipe 100mm/150/200mm.

Old unserviceable PVC bends, T/Y junction of any radius

Old unserviceable brick bats

Old rusted reinforcement/iron angle/mild steel of any size

Old unserviceable PVC pipe 110/75mm excluding fittings.

Old unserviceable 75mm dia floor trap/Nahani trap/ vent cowl etc any dia

M/S SARKAR BROTHERS

BBKundu

samrat saw mill and joinery workshop