Operation and Maintenance of laying distribution system including New Connection, Shifting, Ferrule Changes, Ferrule Washing, OHR Washing, Street Stand Post, Rising main, FHTC, Submersible Pump taken out and re-installation other essential componen

Earth work in excavation of foundation trenches ordrains, inallsorts of soil (including mixed soil but excluding laterite or sandstone) including removing, spreading or stacking the spoils within a lead of 75m. as directed. The item includes necessary trimming the sides of trenches, levelling, dressing and ramming the bottom, bailing out water as required complete. (a) Depth of excavation not exceeding 1.50m.

Bailing or pumping out water from foundation trenches.

Dismantling all type of plain cement concrete works, stacking serviceable materials of site and removing rubbish as directed within a lead of 75mtr for laying all dia pipe line in ground floor, upto 150mm thick.

Earth work in filling in foundation trenches or plinth with good earth, in layers not exceedin150mm. including watering and ramming etc. layer by layer complete. (Payment to be made on the basis of measurement of finished quantity of work) a) with earth obtained from excavation of foundation

Filling in foundation or plinth by silver sand in layers not exceeding 150mm 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) Filling in foundation plinth by fine sand

Renewing lead joint to CI pipes and specials and spun yam 'including reusing 60% of old and using 40% new lead of approved quality new span yam and caulking the same properly including labour charges for dismantling the existing damaged portion complete as per direction of EIC. Approved quality lead, spun yarn, fuel and other materials will be supplied by the agency including necessary earth work in exacavation & back filling in same trenches (Lead if supplied by the department will be recovered @ 145/- per kg) NB:-This item will be executed as per specific direction of EIC a) 80 mm dia. to 150 mm dia.

b) 200 mm dia. to 250 mm dia.

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 by dismantling & jointing by rubber gasket joint or lead joint or flange joint and stacking the withdrawn pipes and specials at site store /road flank, godown etc.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) 80 mm to 125 mm AC/DI/CI Pipe

b) 150 mm dia to 200 mm AC/DI/CI Pipe

Carrying charges of materials M.S. Rod, D.I. Pipe, G.I. Pipe, TW materials, C.I.Dt. Joints, A.C. Coupling, Brass Strainer, H.D.P. Strainer, A.C. Pressure Pipes, M.S. Pipes etc. by road from different stack yard to any places within West Bengal including loading (upto a lead of 20 mtr. from loading point), packing, unloading and stacking charges etc. complete as per direction. a) For distance 0 Km. to 5 Km.

Opening the cap / plug of washout point and opening sluice valve to clean the pipe, cleaning the cap / plug and sluice valve after completion of the work including earth work in excavation and refilling the same, draining out washed water etc. as per direction of ElC and replacing RCC Top slab cover where necessary including refixing the opened cap/plug in position complete. a) Cap Opening.

Making rubber gasket joint to CI/DI pipes maintaining proper alignment level etc. by mechanical arrangement with or without using mobile cranes where necessary and with help of all other equipments tools and tackles etc. as required providing lubricants of approved quality and direction of EIC. (rubber gasket will be supplied deptt. free of cost) b) 100mm dia.

d) 150mm dia.

e) 200mm dia.

Making flange joint to DI/CI pipes, specials and valves where necessary with supply of required rubber insertion and nut bolts, washers etc. of approved quality and type all complete as per specification and direction of EIC (Nut and bolts shall be of TATA/GKW rate). b) 100mm dia.

d) 150mm dia.

e) 200mm dia.

Cutting DI pipe (all class & type) to required length with cutting device etc. and grinding the cutting portion with file as per direction and satisfaction of EIC a) 80mm.dia. to 125mm.dia pipe

b) 150mm.dia.to 200mm.dia pipe

Opening & closing of all the different dia Sluice Valves (80 rum dia to 350 mm dial on different places along the alignment of the rising main and distribution main at different 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 dial 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 refaxing true to position etc. all complete as per the specification and direction of EIC.

(a) Labour charges for repairing the bursting/damage/leakage of 80 mm. dia, to 200 mm. dia. A.C. Pipeline with detachable joints including earth work in excavation tracing out the actual position of burst/leak, cutting pipe of required length, refitting the same with new pipes and old/new detachable joints after chiseling and shaping the pipe, bailing out water from the trenches and refilling the trenches to its original condition all complete as per direction of E.I.C. (Extra A.C. Pipes and detachable joints with rubber ring, nuts and bolls etc. will be supplied from the scheme store, Surplus and unserviceable pipes and specials will have to be returned to the same store. The rates are inclusive of carriage to site of work and back carriage of materials to and from scheme store as mentioned above.) i) 80mm to 125 mm dia

ii) 150mm to 200 mm dia

(b) Extra repairing charges over item no 2 for changing of gland packing of sluice valve/air valve with supplying of gland packing grease etc. bailing out of water including removing the top cover slab of vaIve chamber and refixing the same after completion of work as per direction of EIC. i) 80mm to 125 mm dia

ii) 150mm to 200 mm dia

Repairing of flange joint after dismantling the joints, removing the unserviceable rubber insertion and supply new rubber insertion and supply upto 50 % of new nuts and bolts all complete including necessary earth work dewatering & supply of washer etc. all complete as per direction of EIC i) 80mm to 125 mm dia

ii) 150mm to 200 mm dia

Making barricading for protecting the trench to avoid any accident including making arrangement of road light during the night.

Cleaning silt (every month) from the over head reservoir, cleaning washing and disinfecting the same with bleaching powder, including machinery, tools and plants as per direction of EIC complete (Bleaching powder will be supplied by the agency). a) Upto 1.50 lakh gallon capacity OHR.

b) Above 1.50 lakh gallon and upto 2.5 lakh gallon capacity OHR

Labour charges for repairing of UPVC pipe by using UPVC socket and solvent cement including earth work in excavation with dewatering and necessary tracing out the actual position of brusting / leakage, cutting the pipe to required length in the trenches and replacing the same with new pipe (as per required length) including fitting fixing after roughing the UPVC surface & supplying and applying solvent cement, back filling the trenches with excavated earth upto the same as per direction of EIC all complete (UPVC pipes and specials, solvent cement to be supplied by the Agency). Unserviceable broken withdrawn surplus materials are to be deposited to the Deptt. store. iv) 110 mm Dia

Supplying of UPVC Coupler 6Kg., class – III conforming to IS : 4985 – 2000 with latest revision and amendments ( This item is applicable for maintenance/ repairing work of pipe line only). d) 110 mm dia ( OD )

Supplying bolts with nuts matching with different dia. C.I. detachable joint as per IS : 8794 -1988 with latest amendment. a) 10 to 25 mm dia.

Supplying rubber ring matching with different dia. C.I. detachable joint as per IS : 8794 -1988 with latest amendment. a) For 80mm dia.

b) For 100mm dia.

c) For 125mm dia.

d) For 150mm dia.

e) For 200mm dia.

Nominal Mix M - 15 ( Mix 1:2:4)Cement concrete with graded stone chips(20 mm.size) excluding shuttering and reinforcement, if any, in ground floor.Pakur / Chandil Variety

Taking out of old and damaged valve of any type from the existing line after dismantling of Flange Joint or Socket Joint and fitting, fixing of New Valve. ( Cost of dismantling of joint and renewing the same to be added with this item to complete the job in all respect ) i) 80 mm dia to 100 mm dia

ii) 125 mm dia to 150 mm dia

iii) 200 mm to 250 mm dia

Cleaning the chokage of AC/DI/CI / UPVC 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).

New Connection / Shifting house connection or stand post connection from existing main to new main after excavation through any kind of soil and road materials up to required depth. Dismantling existing ferrule with all fittings. Plugging hole of old main with G.I. plug. Drilling and tapping the new main. refixing the ferrule on the new main with serviceable old G.I pipes and other specials (New G.l. pipes and other specials, if required to be installed shall be paid extra) and back filling the trench with excavated materials all complete as per specification and direction of the Engineer- in-charge.

Renewing brass ferrule for connecting mains

Dismantling existing ferrule with fittings and refixing same after cleaning

Taking out of submersible pump motorfrom bore well Prepare for safety after Cut the power, Remove the well cap, Find the pitless adapter, Thread the pump removal tool into the pitless adapter, Attach a safety rope to the pipe Pull the pump, Clean the pump and their all types of transportation to Municipal Store etc.

Installation Submersible Pump with its electrical arrangement, High pressure water jet arrangemenr for cleaning of reservoir bed etc.Topping up the motor: Before installation, check that the motor is pre-filled with a mixture of anti-corrosive liquid and clean cold drinking water. Checking the motor: Place the motor on its base vertically and check that all fasteners are tight. Connecting the pump to the motor: Couple the submersible motor to the pump. Electrical installation: Connect the cable to the starter terminals, and ensure that the cable joint is waterproof. Installing the pump: Install the pump at least 20 feet from the bottom of the borewell. Use a chain block to suspend the pump from the delivery pipe. Securing the pump: Secure the pump to the base plate using ski rope, ensuring that there is no strain on the cable or piping. Connecting the control panel: Connect the leads from the output of the main sees to the control panel etc. complete in all respect

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