REPAIRS CLEANING OF SEWAGE LINES SEPTIC TANK OXIDATION POND STATIC WATER TANK INSIDE CAMP AT AF STATION TAMBARAM

Amount

Cleaning of blocked water closet of any type/ pattern upto 1st manhole and making the drain pipe of any size full functional by flushing with water to entire satisfaction of Engineer-in-Charge including cleaning of 1st manhole and removing the waste material/ sludge etc., to a distance not exceeding 300m and burning the same in pits and top surface covered with earth complete all as specified and directed NOTE: (a) Cost of excavation and earth work for pits for burying the waste / sludge etc shall deemed to be included in the unit rate. (b) Any damage caused during cleaning shall be made good to entire satisfaction to Engineer-in-Charge by the contractor without any extra cost.

All as per item No.1 above but cleaning of blocked floor/ nahani trap including removing and refixing grating and cleaning upto 1st manhole including cleaning of gully traps.

Demolition of brick work built in cement mortor of any description including all quoins, arches & pillars etc complete

Demolition of cement concrete of any description / any position not otherwise specifically provided

Demolition of reinforced cement concrete of any description / in any position

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth for foundation etc, and getting out in hard/ dense soil

All as per item No.6 above but exceeding 1.5m depth and not exceeding 3.0m depth.

Returning, filling in soil including spreading, levelling, watering and well ramming in layers not exceeding 25cm

Removing surplus excavated soil to a distance to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point all as specified and directed

M&L for plain cement concrete 1:3:6 type C2 using 40mm graded stone aggregate as in foundation all as specified and directed.

M&L for plain cement concrete 1:2:4 type B1 using 20mm graded stone aggregate for benching in manholes all as specified and directed.

M&L for plain cement concrete 1:2:4, type B1 using 20mm graded stone aggregate as in cills, steps, bands, copings, bed plates , etc including necessary form work, all as specified and as directed

S&F SRFC (Steel fibre reinforced cover) of size 750mm x 750mm x 25mm thick, medium duty confirming to IS with edge protection with mild steel flat iron of size 25mm x 3mm thick with and including corrosion protection lifting handles/hooks for manhole cover complete all as specified and directed.

S&F SRFC (Steel fibre reinforced cover) of size 900mm x 900mm x 25mm thick, medium duty confirming to IS with edge protection with mild steel flat iron of size 25mm x 3mm thick with and including corrosion protection lifting handles/hooks for manhole cover complete all as specified and directed.

S&F SRFC (Steel fibre reinforced cover) of size 1200mm x 1200mm x 25mm thick, medium duty confirming to IS with edge protection with mild steel flat iron of size 25mm x 3mm thick with and including corrosion protection lifting handles/hooks for manhole cover complete all as specified and directed.

M&L for Brick work with sub class 'B' bricks straight or curved on plan exceeding 6M mean radius built in cement mortar 1:4 complete all as specified and as directed

M&L for half brickwork with subclass 'B' bricks, straight or curved on plan to any radius and built in cement mortor 1:4 complete all as specified and as directed

M&L for brick work with sub class 'B' bricks in one brick thick honey comb wall, built in cement mortor 1:4 complete all as specified and as directed

Taking down plaster of any type of description on brick walls including racking out joints, haunching for key scrubbing down in water inside manhole including taking out manholes cover and replacing after the work is completed etc., all as specified and as directed

M&L for rendering 15mm thick on fair faces of brick work in cement mortar 1:4 finished even and smooth without using extra cement all as specified and as directed

Demolition and breaking up drain SWG or AC or reinforced concrete pipe set in cement mortar for 100mm dia including PCC bed and haunching etc., all as specified and as directed

Demolition and breaking up drain SWG or AC or reinforced concrete pipe set in cement mortar for 150mm dia including PCC bed and haunching etc., all as specified and as directed

Demolition and breaking up drain SWG or AC or reinforced concrete pipe set in cement mortar for 200mm dia including PCC bed and haunching etc., all as specified and as directed

M&L for reinforced cement concrete pipe 100mm bore ,class NP3 laid and jointed complete with collars all as specified and as directed

M&L for reinforced cement concrete pipe 150mm bore ,class NP3 laid and jointed complete with collars all as specified and as directed

M&L for reinforced cement concrete pipe 200mm bore ,class NP3 laid and jointed complete with collars all as specified and as directed

M&L for haunching to drain pipes of size 100mm dia in cement concrete 1:4:8, type D2, including packing under and haunching against the sides of pipes after they are laid and tested complete all as specified and as directed

All as per item No.27 above but bore of pipe 150mm.

All as per item No.27 above but bore of pipe 200mm.

Cutting into existing manholes for connecting new drains and making good to pipe and rendering, cutting out existing bending for and forming branch channel in cement concrete 1:2:4 type B1 smooth finished and reforming benching as required for pipe 100mm bore etc., complete all as specified and as directed

All as per item No.30 above but bore of pipe 150mm.

All as per item No.30 above but bore of pipe 200mm.

Cleaning of septic tank including bailing out water, from it and removing sludge and blockages from inlet and outlet of sewer lines including taking out the excavated sludge and carting away the same to a distance far away from residential/ office area and cover the same with fresh earth and recommissioning the septic tank including site clearance to a distance of 3 metre around septic tank complete all as specified and directed for the following capacity :-

For septic tank of 25 users capacity.

For septic tank of 50 users capacity.

For septic tank of 100 users capacity.

For septic tank of 250 users capacity.

For septic tank of 500 users capacity.

Cleaning and removing of sewage sludge from under ground sewage sump of size 6m dia and 6m deep including bailing out sewage water, cleaning of side walls, all-round removal of accumulated sludge/ silt/ mud etc., from the floor and depositing the same out side camp area all as specified and directed by Engineer-in-Charge .

Bailing out sewage water, cleaning & removing silt/ sludge, mud, vegetation and foreign materials etc., from Oxidation pond of size 134m x 45m bottom size of tank, 136mx47m top size of tank and 2.5m depth of tank including cutting of bushes, vegetation shrubs, brushwood, under growth etc., upto roots on slanting portion of oxidation pond and removal of silt/ sludge, mud, bushes etc., from the defence premises to a distance exceeding 1000m and not exceeding 1500m and disposed off all as specified and directed by Engineer-in-Charge .

Cutting of bushes, vegetation, shrubs, brush wood, under growth etc. up to roots all-round 4m in width from the edges of existing Oxidation ponds, including surface dressing all as specified & directed

Cleaning of collection chamber of Oxidation pond and setting chamber including bailing out water, removing sludge, mud, stone and foreign materials etc., to a distance 1000m away from the residential area (i.e.) outside the defence premises all as specified and directed by Engineer-in-Charge.

Racking out joints and pointing with flush pointing to existing concrete slabs as in flooring/ pitching of any description laid in slope using cement Mortor 1:4 complete all as specified & directed

Cleaning, removing, deposited sludge, blockage from manholes, taking out the excavated sludge, clean the manholes neatly and carting away the same far away from buildings/ living area and deposit at low lying area/ ditches and cover with fresh earth on top complete all as specified & directed, for the following

For manholes upto 0.45 Metre deep from invert to top of manhole cover.

For manholes exceeding 0.45 Metre deep and not exceeding 1.5 Metre deep from invert to top of manhole cover.

For manholes exceeding 1.5 Metre deep to any depth.

Cleaning of blocked sewage drain pipe line of 100mm dia and removing all sludges and foreign materials manually or mechanically as required etc., complete from the pipe line and making it serviceable free flow of sewage complete all as specified & directed

All as per item No.40 above but for 150mm dia pipe

All as per item No.40 above but for pipes exceeding 150mm dia and not exceeding 250mm dia.

S&F in repairs PVC grating 100mm dia and fixing/ jointing with white cement complete all as specified & directed

S&F in repairs 75mm dia PVC (SWR) pipes single socketed in any length with rubber ring joint fixed complete to walls all as specified & directed

S&F in repairs 110mm dia PVC (SWR) pipes single socketed in any length with rubber ring joint fixed complete to walls all as specified & directed

S&F in repair 75mm dia PVC (SWR) bends any radius

S&F in repair 110mm dia PVC (SWR) bends any radius

S&F in repair 75mm dia PVC (SWR) bend with access door

S&F in repair 110mm dia PVC (SWR) bend with access door

S&F in repair vitreous china water closet pedestal pattern with P or S trap including connection to flush and water pipe etc complete all as specified & directed

S&F in repairs Vitreous china squatting pan Orissa pattern of size 550mm x 440mm white with integral foot rest (excluding flushing cistern and flush pipe) and making good to floor etc complete all as specified & directed

S&F in repairs PVC valve less syphonic action type flushing cistern 10 litres capacity, high/low level with inlet ball valve, float and handle including brackets and flush down pipe

S&F in repairs EWC seat cover White flat bottom solid with CP hinging device, nuts & bolts etc complete

S&F in repairs PVC connections 15mm dia 600mm long (for cold/hot water connection) with brass or PTMT flynuts and washer at both ends

Dismantling floor, hearth or wall tiling including cement mortar bedding (but not backing), removing unserviceable tiles to store and rubbish off the premises complete all as specified and as directed.

M&L for Non skid Ceramic tiles 7 mm to 8 mm thick (square/rectangular) area of each tile exceeding 0.06 sqm but not exceeding 0.11 sqm, in floors etc. set and jointed in neat cement slurry and pointed in coloured cement to match with the colour of tile over and including 15mm thick scread bed in cement mortor 1 :6 complete all as specified and as directed.

M&L for Non skid Ceramic tiles 7 mm to 8 mm thick (square/rectangular) area of each tile exceeding 0.11 sqm but not exceeding 0.18 sqm, in floors etc. set and jointed in neat cement slurry and pointed in coloured cement to match with the colour of tile over and including 15mm thick scread bed in cement mortor 1 :6 complete all as specified and as directed.

M&L Glazed Ceramic coloured tiles 6 mm tto 7mm hick square/ rectangular) area of each tile exceeding 0.06 sqm but not exceeding 0.0875 sqm in vertical surfaces such as skirtings,dados etc set and jointed in neat cement slurry and pointed in coloured cement to match coloured tiles over and including 10mm thick back coat in cement mortor 1 : 4 complete all as specified and as directed.

M&L for cleaning of static water tank of capacity 15000 gallon each by pumping out water using pumping set/ submersible pump and scraping wall surface inside, bleaching resudual, sedimets, sand, slushy mud, fungus scaling etc with the help of wire brush steel patti, broom and jute bags from the bottom and walls of SWT and taking out the residual with the of buckets and rope and throwing the same at a distance not less than 100 metre away from the SWT. Cleanig/Washing inside the SWT with detergent powder and cleaning the sump with fresh water two times and applying two coats of white lime wash inside bottom and walls of SWT, complete including necessary tools and palnt etc.., as required all as specified and directed by Engineer-in-Charge.

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