GE(U)/CHM-23/2022-23 REPAIRS AND MAINTENANCE TO SEWAGE SYSTEM SEWAGE LINES MANHOLES SEPTIC TANKS AND SOAKAGE PITS AT COMD HOSP AREA UNDER AGE B/R (CH) OF GE (U) CHANDIMANDIR

Amount

Excavating in trenches, not exceeding 1.5m wide and not exceeding 1.5m in depth, for foundations etc or manholes, cesspits, pipes and cables etc. not exc 10 Sqm on plan and getting out in soft / loose soil all as specified and directed by Engineer - in - Charge.

Returning, filling in, including spreading, levelling, watering and well ramming in layers of soft / loose soil not exceeding 25cm thick all as specified and directed by Engineer - in - Charge.

Removing excavated material exc. 250 m but n exc. 500 m and depositing where directed at a level not exceeding 1.5m above the starting point all as specified and directed by Engineer - in - Charge.

M&L Cement concrete 1:4:8 type D-2 using 40mm graded stone aggregate as in foundation, filling and mass concrete and sub base all as specified and directed by Engineer - in - Charge

M & L cement concrete (1:2:4) type B-1 using 20mm graded stone aggregate as in lintels up to 1.5 m clear span, seismic and other similar bands, benching, coping, bed blocks, apex stones and kerbs etc including use of necessary form work all as specified and directed by Engineer - in - Charge .

Supply only Integral waterproofing compound all as specified and directed by Engineer - in - Charge.

M & L brick work with sub class ‘B’ old size burnt bricks straight or curved on plan exceeding 6.0m mean radius built in cement mortar 1:4 all as specified and directed by Engineer – in – Charge.

M & L 100mm thick Cement Conrete 1:2:4 type B–1 using 20mm graded stone aggregates flooring finished even and smooth without using extra cement all as specified and directed by Engineer - in – Charge .

M & L rendering 15mm thick on fair faces of brick work or concrete surfaces in CM 1:4 finished even & fair without using extra cement all as specified and directed by Engineer - in - Charge .

M&L Cement concrete 1:3:6 type C-2 using 40mm graded crushed stone aggregate as in bed to drain pipe including packing under and haunching against the sides of pipes 150mm dia (internal) after these are laid in trenches all as specified and directed by Engineer - in - Charge.

Reinforced concrete pipes 150mm bore class NP-3, laid and jointed complete with collars, all as specified and directed by Engineer - in - Charge.

Cutting into existing manholes for connecting new drains, making good to pipe and rendering, cutting out existing benches for and forming branch channel (1/2 round or 3/4 section) in cement concrete 1:2:4 type B-1 smooth finished, and reforming benching as required for 150mm internal dia for pipe all as specified and directed by Engineer - in - Charge.

Demolition of brick work built in cement mortar all as specified and directed by Engineer - in - Charge.

Demolition of cement concrete (un-reinforced) in floors / pavings, (below or above ground level) and of any description and in any position not otherwise specifically provided for all as specified and directed by Engineer - in - Charge .

Cleaning of existing sewage pipe line 300mm internal dia by JETTING SUCTION MACHINE and well flushing after cleaning including getting out sludge and liquid materials deposited in lines and removing the solids and sludge to any distance place outside the defence land at their own cost and the cost of removal shall be included in this rate all as specified and directed by Engineer - in - Charge.

Cleaning of existing sewage pipe line 200mm internal dia by JETTING SUCTION MACHINE and well flushing after cleaning including getting out sludge and liquid materials deposited in lines and removing the solids and sludge to any distance place outside the defence land at their own cost and the cost of removal shall be included in this rate all as specified and directed by Engineer - in - Charge.

Cleaning of existing sewage pipe line 150mm internal dia by JETTING SUCTION MACHINE and well flushing after cleaning including getting out sludge and liquid materials deposited in lines and removing the solids and sludge to any distance place outside the defence land at their own cost and the cost of removal shall be included in this rate all as specified and directed by Engineer - in - Charge.

Cleaning and make it functioning sewage system by removing of all types of blockages from soil waste/rain water pipes, CI waste pipes, blockages of toilets / bathrooms/WHB of bldg upto G+5 storey height or in trenches, sewage line of any dia including junction of manholes of any description, man holes and septic tanks of any size and depth upto the last manhole to septic tanks of central sewage system to keep smooth functional without any blockage of any description any any situation with manually or some machanically processes for all locations under AGE B/R CH all as specified and direted by Engr-in-Charge, by providing sufficient numbers of safaiwalas per day including all necessary tools and plants like bamboos, iron rod, bucket, rope ladder etc. Contractor or rep of contractor has to attend sub- division on a daily basis to collect the complaints should be resolve within 24 hrs without fail.

De-sludging by removing semi solid sludge from the existing manholes of any capacity and any depth as in foul condition including taking and placing in position the manhole cover of any description removal of sludge and solid contents to any place outside defence land all as specified and directed by Engineer - in - Charge.

MS GURENDER SINGH