Repair and maintenance to sewage system, cleaning of manhole, septic tank, soaks well of Zone A area at Mily Station Kannur under AGE (I) Cannanore.

Amount

Excavating in trenches n.exc. 1.5m wide and n.exc. 1.5m in depth for foundation, etc and n exc 10sqm on plan and getting out in hard/dense soil all as specified and directed.

Excavating in trenches n.exc. 1.5m wide and n.exc. 1.5m in depth for foundation, etc and n exc 10sqm on plan and getting out in soft/disintegerated rock all as specified and directed.

Returning and filling in, including spreading, leveling, watering and well ramming in layers not exceeding 25 cm thick with soil obtained from excavation all as directed

Removing excavated materials (soil) to a distance n exceeding 50m and depositing where directed at a level 1.5m above starting point all as specified and directed.

Cleaning of existing manhole of any capacity by removing sludge by mechanical pumping or any means without damaging the structure and disposing off sludge in a pit n exc 50m from the MH as including necessary excavation in hard / dense soil , refill and disposal of surplus soil etc complete all as directed.

Cleaning of intersepting chamber, gully traps, floor traps etc removing any type of blockage by rodding from manhole and flushing with water after cleaning sludge and maintaining and keeping fully functional upto the date of completion of contract all as directed.

Cleaning/ clearing of sewage lines, including CI/PVC/RCC pipe, under ground lines any depth by removing any type of blockage from drain/drain pipe up to and upto and including 200mm dia by means of hydraulic jet pressure machine manually and flushing with water after cleaning sludges including transporting the sludge water, sludge, sediments etc; in a covered trucks/carts and burried in pits as directed including necessary excavation in hard / dense soil , refill and disposal of surplus soil etc complete,taking off manholes covers and refixing the same after cleaning . Sewage lines cleared/cleaned under this item is to be maintained and kept fully functional by removing any type of blockage till the date of completion of work . Note for item No 5 to 7 : Contractor will engage a sweeper cum sewege drain attendent daily from the date of commencement of work till completion of the work in the office of Engr-in-charge to attend the sewage related complaints as directed by Engr-in-charge. The cost of labour shall deemed to be included in the item. The rates quoted above shall also be included the work mentioned in PS clause 13.5.

Cleaning of septic tank of capacity 10 users by removing septic tank cover, pumping out water, sludge and sediments by mechanical means, transporting the water, sludge, sediments etc; in covered trucks/carts and burried in pits as directed including necessary excavation in hard / dense soil , refill and disposal of surplus soil etc complete, cleaning of septic tank with water, placing back the cover intact, removing of bush, vegetations and other growth nearby septic tank to an extend of 3m all around, all as directed.

All as per item No 8 here in before but septic tank of capacity 25 users all as directed.

All as per item No 8 here in before but septic tank of capacity 50 users all as directed.

All as per item No 8 here in before but septic tank of capacity 100 users all as directed. Note for item No 8 to 11 : The quoted rate includes for keeping particular septic tank functional upto the contract period.

Demolition of brick or laterite stone masonry built in cement or cement lime mortar, including all quioins, arches, pillars, etc, but excluding ashlar facings, dressed stone work and precast concrete article and removing rubbish out side MD landall as directed.

M&L for laterite stone masonry, squared rubble, regular coursed, well bonded and solidly hearted , built in CM (1:6) all as specified and directed.

All as per item No 13 here in before but except laterite stone all as specified and directed. Note : Serviceable laterite/brick obtained from item No 12 shall be reused.

M & L for cement concrete (1:2:4), type B1 (using 20 mm graded stone aggregate) as in benching, stops of manholes, coping etc including weathering, slightly rounded or chamfered angles and throating all as specified and directed.

Cutting into existing manholes for connecting new drains, making good to pipe and rendering, cutting out existing benching for and forming branch channel ( ½ round or ¾ section) in cement concrete 1:2:4, type B1 using 20mm graded stone aggregate, smooth finished and reforming benching as required for internal dia of pipe 160mm ball as directed.

Dismantling and breaking up drain pipes (salt glazed drain pipes, AC / RCC/ CI/ PVC) set in cement mortar internal dia of pipes upto 150 mm and removing debris outside MD land all as directed.

M&L PVC (SWR) pipe 160mm bore single socketed with solvent cement joints laid in trenches or in floors all as specified and directed.

All as per item No 18 here in before but 75mm bore all as specified and directed.

All as per item No 18 here in before but 110mm bore all as specified and directed.

M&L PCC (1:4:8) type D2 (using 40mm stone aggregate) concrete bed to drain pipe 160 mm bore including packing under and haunching against the sides of pipe after they are laid and tested all as specified and directed.

S&F 75 mm bore, PVC (SWR) bends all as specified and directed

S&F 110 mm bore, PVC (SWR) bends all as specified and directed

S&F 75mm bore PVC (SWR) branch piece single Y including jointing with solvent cement all as specified and directed.

Taking down cement or cement lime plaster on brick/stone walls incl racking out joints hacking for key scrubbing down with water etc and removing rubbish outside MD land all as specified and directed.

M&L for rendering 15mm thick in cement mortar (1:4) on stone masonry surfaces, finished even and smooth without using extra cement all as specified and directed .

M&L for rendering 15mm thick in cement mortar (1:6) on stone masonry surfaces, finished even and smooth without using extra cement all as specified and directed .

M&L for preparation of newly plastered or un-plastered surfaces of wall and applying 3coats of white wash all as specified and directed.

Demolition of reinforced cement concrete in ground floor and paving not exceeding 15 cm thick below or above ground level (reinforcement cut as required to facilitate demolition) and removing debris outside MD land all as directed.

Demolition of plain cement concrete in ground floor and paving not exceeding 15 cm thick below or above ground level and removing debris outside MD land all as directed.

M & L for PCC (1:3:6), type C-2,using 40mm graded stone aggregate as in surface channels and drains including necessary form works all as specified and directed.

M&L for forming fair finished drain or channel 30cm inner girth in cement concrete, using extra cement, including forms, moulds, mitred/stopped ends etc. complete all as specified and directed.

M&L for Pre-cast RCC (1:2:4) type B1 using 20mm graded stone aggregate as in manhole/drain cover slab etc; including necessary form work complete set in cement mortar (1:6) all as specified and directed. Note: Reinforcement shall be measured and paid seperatly.

S&F TMT bars 10mm dia and over as in reinforcement, cut to length, bent to shape required including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.90 mm dia or securing with clips all as specified and directed.

S&F TMT bars 8mm dia as in reinforcement, cut to length, bent to shape required including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.90 mm dia or securing with clips all as specified and directed.

M&L 100 mm thick PCC (1:4:8) type D2 (using 40 mm graded stone aggregate) as in subbase of flooring complete all as specified and directed .

M&L 100 mm thick PCC (1:2:4) type B2 (using 40 mm graded stone aggregate) as in flooring/paving/path finished fair and even including necessary form work complete all as specified and directed .

M & L for cement concrete (1:3:6), type C1 (using 20 mm graded stone aggregate) as in coping etc including form work all as specified and directed.

M&L 40mm thick PCC (1:2:4) type B1 (using 20 mm graded stone aggregate) as in flooring and pavings finished fair and even including necessary form work complete all as specified and directed .

Sujith T