Special Repair Replacement of tubewell at Pump house No 11 Raina Park under GE West) JRC

Amount

M&L for Boring with reverse rotary rig circulation method including electronic logging through any kind of stratas of soil/rocks for drilling not less than 675 mm dia hole for depth not exceeding 60 mtrs deep below ground level by keeping sufficient space for packing pea gravel all as specified

All as per Srl item No 1 here-in-before, but depth exc 60 meters and not exc. 100 meters deep below ground level complete all as specified

All as per Srl item No 1 here-in-before, but depth exc 100 meters and not exc. 200 meters deep below ground level complete all as specified

All as per Srl item No 1 here-in-before, but for drilling 525 mm dia hole and depth exceeding 200 mtr but not exc. 300 meters deep below ground level complete all as specified

Supplying, assembling fixing and lowering into bore hole 300 mm (12") dia MS casing pipe with 8 mm wall thickness externally threaded and socketed ERW in random length of 6 mtr or as required duly ISI Marked including necessary fittings and jointing upto 100 mtrs depth from ground level and painting with two coats of anti corrosive paint on external surfaces of pipe before lowering complete all as specified and directed.

All as per Srl item No 5 here-in-before but size of MS casing pipe 200mm (8") with 8 mm wall thickness ISI marked and jointing the MS casing threaded and socketed alongwith arc welding complete at depth exceeding 100 mtr but not exceeding 300 mtr below ground level all as specifed and directed.

Supplying assembling fixing and lowering exceeding 100 mtr but n.exc 300 mtr below ground level low carbon galvanized strainer 200mm (8") bore minimum wall thickness 8 mm including screwed mild steel socket as per latest ISI having slots to suit the size of sand grain including fitting jointing the MS casing and MS Pipes 200 mm bore by welding complete all as specified and directed

Supplying and fixing 8 mm thick MS bail plug of 200mm dia x 600 mm long with strong iron hook, screwed & welded to the casing pipe complete all as specified. Note :- length of pipe required to be fixed with bail plug will be measured and paid for separately under respective item.

Supply, fixing and lowering into bore hole centering guides made out of MS flat 50 x 6 mm made to shape with two rings at 75 cm apart and three No ribs suitable for 300/200mm bore pipe complete all as specified and directed by Engineer-in-Charge

Supply and fixing MS reducer of wall thickness 8 mm screwed both end 300 x 200 mm size of length 600 mm including jointing threaded and socketed alongwith electric arc welding complete all as specified and directed by Engineer-in-Charge.

Supply and fixing well cap 300 mm bore having internal threads and with welded iron handle of 20 mm dia MS round bar complete all as specified and directed by Engineer-in-Charge.

Supply and fixing housing clamp 90 cm long made out of MS flat iron 100 mm x 10 mm for 300 mm dia casing pipe with necessary MS bolts, nuts and washers at ground level complete all as specified and as directed by Engineer-in-Charge.

Supplying and packing pea gravel of size 3.00 mm to 4.00 mm all around the casing pipe and slotted pipe in the well bore to entire depth complete all as specified (volume of Pea gravel shall be measured as space between bore well and outer dia of pipe)

Supplying and fixing 80 mm bore GI Pipe medium grade 6 mtr long 4 Nos in the angular pace on four sides of the borewell and 30 cm above the ground level with suitable size GI cap at gound level for feeding pea gravel all as specified (Cost of gravel feeding is not included in this item).

PCC 1:2:4 type B-1 using 20 mm graded crushed stone aggregate as in block mass concrete below ground level all around the bore level all as specified and directed.

Supplying and fixing strata box with openable sheet glass shutter 3 mm thick and having internal dimension 150 mm x 100 mm x 1.5 mtr complete with soil sample obtained from various depths of boring after every interval of 10 mtrs with particulars like name/number of tube well location and depth of strata duly written including provision of strata charts complete all as specified and direct by Engineer-in-Charge.

Development of the bore well with high capacity air compressor for not less than 8 hrs till the water become sand or silt free including removing of surplus soil mud to a distance not exceeding 50 mtr and depositing as directed & making the site clear all as directed. Note :- Air compressor high capacity 600 sqft/per minute and 600 PSI alongwith connected tools and plants required for the development and will be arranged by the contractor and cost of fuels, electric supply etc are also to be included in the item rate quoted by the contractor.

M&L for Yield testing and stabilizing of the tube well by means of electric driven pumping set of suitable capacity not less than 16 hrs (the discharge shall be measured by providing orifice system of 'V' notch fixed to steel tank of adequate capacity) and testing of water shall be done from NABL approved Govt Laboratory and report of the same shall be submitted to Engr-in-charge complete all as specified and directed. Note :- Pumping set and required equipments shall be arranged by the contractor under his own arrangements

Supply and fixing (in replacement) of Submersible cable PVC insulated, PVC sheathed, industrial, multi stranded, copper conductor 3 core, 16 sq mm flat, minimum number of strands 126 Nos and nominal dia of each strand not less than 0.4 mm, 1100 volt grade conforming to IS 694/1990 completed all as specified ,

Supplying & fixing GI column pipe 150 mm dia, heavy duty, "C" class with both end flanged and drilled 3 mtrs long including connecting to main pipe line complete all as specified and directed. Note :- The cost of nuts, bolts, washers and packing material shall be deemed to be included in unit rate quoted by the contractor.

Supply and laying jointing and testing 150 mm (6") dia, Ductile Iron pressure pipes with flanged ends centrifugally cast conforming to IS-8329-2000 suitable for rubber gasket joints including joints and jointing materials Class "K-9" in any length, laid in trenches complete all as specified and as directed. (Note:- Excavation and earth work shall be measured and paid separately under respective items of BOQ)

M&L for fittings for Flanged pipes such as bends of any type, radius and angle tapers any type (straight, bend increasing, decreasing or double sockets etc) Tee pieces single branch 'Y' junction, double branch, cross( all sockets or socket and spigot) collars, caps and plug size upto 150 mm bore, all as per IS 1538-1993, ISI marked complete all as specified).

M&L for joints with rubber gasket for flanged pipe of bore for 150mm size DI pipe line all as specified and directed.

S&F Non-return valve/Reflux valve with bypass arrangement 150 mm dia, Cast iron, screwed/flanged both ends, nuts, bolts, washers gaskets etc as required at site ISI marked complete all as directed.

Supply & laying of Cast iron Air release valve with two air out lets 80 mm dia bore and fixing in cast iron water supply mains on 150 dia bore pipe line complete all as specified and directed.

S&F in position 150 mm bore Cast Iron Sluice Valve, double flanged complete with stainless steel spindle iron wheel handle clock wise closing with drilled hole flanged heavy duty PN 1.6 conforming to IS-13095, including rubber gasket, nut, bolts, washers all as specified and directed. Note :- DI Specials/fittings will be measured separately under relevant items.

S & F in replacement of PVC tubing 15 mm dia heavy duty fixed to wall/floor by means of suitable size PVC U clamps at an inetrval of 600 mm complete all as specified and directed

Supply & fix pressure gauge 100 mm dia with ball valve of pressure 25 Kg/SqCM all as specified and directed.

M&L for Cutting of existing underground cast iron pipe 150/100mm dia including provn of fittings viz, Tee-01 No, tail piece -2 Nos and required jointing materials to establishing joint to connect with existing pipe line including earth work, returning filling, removal complete all as specified and directed. Note :- DI Specials which are included will be measured and paid separately

Material and labour construction of brick masonry valve pit of size 1.20 x 1.20 x 1.20 Mtr (internal dimension) including earth work and excavation if any type of soil and disposal of surplus soil to a distance not exceeding 50 mtr away from site including plastering internally in CM (1:4) and flush pointing on brick work externally as the work proceeds in the same mortar with angle iron frame 40x40x6 mm, hold fast MS sheet cover 3.15 mm thick, handle hinged to frame and locking arrangement including black synthetic enameled paint duly painted over a coat of red oxide including dismantling existing pit complete all as specified and directed. Note:- Excavation and earth work shall be deemed to be included in unit rate quoted).

Excavation in trenches in soft/loose soil not exceeding 1.50 mtr wide and not exceeding 1.50 mtr in depth for laying of cables and getting out complete all as specified and directed by Engineer-in-Charge.

Returing, filling in, including spreading, leveling watering and well ramming inlayers not exceeding 25 cms thick each layer compete all as specified and directed by Engineer-in-Charge.

Removal of surplus soil to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed by Engr-in-charge.

Cutting of road / hard standing / foot path not exceeding 0.60 cm wide and 1.0 mtr depth for laying of pipe line including making good with PCC 1:3:6 type C2 of required quantity to make up the digged depth with existing road complete all as directed.

Taking up cast iron water mains 6" (150 mm) bore (including all fittings), with spigot and socket ends and lead joints including burning out joints and recovering lead all as specified and directed.

M/S Kuldip Construction Co. (BID ID -3109644)

CHOUDHARY AND SONS (BID ID -3110670)

J.K & Company (BID ID -3122475)