WBPHED/AE/BSSD/NIeT_03/26-27 _7

Withdrawing and relaying of DI/CI pipes / AC pipe after excavation of earth and with the help of chain pully derrick etc. by dismantling & jointing by rubber gasket joint or lead joint or flange joint and stacking the withdrawn pipes and specials at site store /road flank, godown etc. all complete in the excavated same trench & as per direction of EIC. a) 150 mm dia to 200 mm dia

Dismantling all types of plain cement concrete works, stacking serviceable materials at site and removing rubbish as directed within a lead of 75m In ground floor including roof. a) Upto 150 mm. thick

Ordinary Cement concrete (Mix 1:2:4) with graded stone chips (20 mm. nominal size) excluding shuttering and reinforcement, if any, in ground floor as per relevant IS codes. a) Pakur variety.

Supply of Mechanical Callar a) 150 mm dia

(A) Filling in foundation or plinth by silver sand in layers not exceeding 150 mm as directed and consolidating the same by thorough saturation with water, ramming complete including the cost of supply of sand. (payment to be made on measurement of finished quantity) (B) Do-by fine sand

Cleaning the chokage of AC/DI/CI / UPVC/HDPE Pipes in the existing line by split bamboo passing through the new pit on the line and cleaning silt, bats or any obstructed materials in the line and cleaning by washed water. (Work to be executed as per prior approval and direction of EIC).

Brick work with 1st class bricks in cement mortar (1:6) (b) In superstructure, ground floor

C.W.R cleaning, washing and disinfecting the same with bleaching powder, including machinery, tools & plants etc. as per direction of EIC complete (bleaching power will be supplied by the agency ) a) Up to 20,000 gallon Capacity

b) Above 20,000 gallon capacity

Opening & closing of all the different dia sluice valves (80 mm. dia. to 350 mm. dia.) on different places along the alignment of the rising main and distribution main at diferent places over the command area daily as and when required for regulating the supply of water and distributing water all over the command area smoothly including changing and restoration of gland packing of sluice valve, air valve if required including opening the cap / plug of wash out point or opening the sluice valves including de-jointing flange joints (80 mm. to 350 mm. dia.) including repairing works and cleaning the pipeline or changing of gate, spindle or liner etc. of sluice valves all complete, restoration works to be done including earth work in the excavation bailing out of water, re-filling the excavated earth, taking out of RCC slab or slab cover and relaxing true to position etc. all complete as per the specification and direction of EIC. (As when required)