SPL REPAIR /REPLACEMENT OF BOREWELL AT JALKENDRA AND PROVN OF B VEH REPAIR SHELTER NEAR WASHING POINT UNDER GE MISSMARI

Amount

Drilling and development of bore for 250 x 200 mm tube well by reverse rotary circulation method machine 250 mm bore size top or bottom by different cutters including all arrangement with appliances and excavation of pit for clay for circulation of water using bentonite or satisfy clay as per site of soil condition for settlement of bore hole for the depth from ground level to 60 mtr depth. ( LOCATION:- BOREWELL- 01 AND BOREWELL-02 AT JALKENDRA ) (Note for Item No 01 to 04 -: The quoted rate shall be deemed to be inclusive of the cost of drilling ,pumps and fittings etc used in the process of drilling shall be provided by the contractor under his own arrangement for execution of the work.)

All as per item No 01 but for depth from 60 meters below ground level upto 90 meters depth.

All as per item No 01 but for depth from 90 meters below ground level upto 120 meters depth.

All as per item No 01 but for depth depth exceding120 meters below ground level

Supply lowering assembling and fixing in position in bore well 250mm dia ERW heavy quality MS housing pipe of 7mm wall thickness plain ended arc weld but joint with heavy duty collar and 20 x 4 mm mild steel flat iron contract guide in each joint (04 Nos of each joint) complete all as directed.

Supply lowering assembling and fixing in position 200 mm dia ERW heavy quality MS black casing pipe of 6.5mm wall thickness plain ended arc weld butt joint with heavy duty collar and 20 x 4 mm mild steel flat iron contact guide in each joint (04 Nos of each joint) complete all as directed.

Supply and lowering wire cage type strainer LCG confirming to IS-8110 200mm dia size of slot 0.75mm thickness, 4.95mm wall thickness 7mm and welded with MS pipe and heavy duty collar and welded centre guide MS flat iron 20 x 6 mm complete all as directed.

Supply lowering assembuling and fixing in position 200 mm bore heavy duty ball plug 3 meter long ERW MS pipe of 6 mm wall thickness and covered with 6 mm plate duly welded by continously etc welding at both ends complete all as specified and as directed.

Supplying and fixing in position by welding heavy duty MS reducer 250 X200 mm of minimum wall thickness 6mm and 40 X 6 mm MS flat iron central guide complete all as specified and as directed.

Supply and filling pea gravel of size 3 to 6 mm for packing around the housing /assembly,slotted pipe of the bore well complete all as specified and as directed. Note:- Pea gravel shall be paid as per stack measurment carried out on site .)

Development of tube well with air compressor of capacity 250 psi /1000cum till sand/mud free water of potable quality is obtained ( min Hr run 72 Hr) and to achieve minimum discharging capacity of 25000 GPH complete all as specified and as directed . (Note:- Compressor with accessories and fuel shall be arranged by the contractor and same is included in the unit quoted rate ). ( LOCATION:- BOREWELL- 01 AND BOREWELL-02 AT JALKENDRA )

Yield testing of the tube well by suitable pump and motor for minimum discharge capacity of 25000 GPH for at least continuous 8 hour uniterrupted of run per day for three continuous days complete all as specified and directed. Note : `V' notch and other equipment including pump set shall be arranged by the contractor and cost of same is included in the unit rate quoted). ( LOCATION:- BOREWELL- 01 AND BOREWELL-02 AT JALKENDRA )

Testing of raw and treate water for all parameters covering complete chemical and bacterilogical test from DRL Tezpur or any Govt approved/recognised lab as approved by the GE complete all as directed.

Material and labour for mild steel iron clamp ( two parts made out of mild steel flat iron 150 mm width X 12 mm thick of approx 450 mm length and required size of CI nuts , bolts and washers and suitable for holding 100 mm bore colum pipe complete all as specified and as directed .

Material and labour for PCC 1:2:4 type B-2 using 40 mm graded aggregates in foundation filling and mass concrete complete all as specified and as directed .

Material and labour for plain cement concrete (1:2:4) type B-1 using 20 mm graded aggregate at as in coping benching and simillar items incl necessary form work etc complete all as specified and as directed .

Supply lowering and jointing mild steel column pipe ISI marked ,100 mm dia heavy grade 6.0 mm wall thickness ,flange ended complete with nuts , bolts ,washers and rubber gasket incl groove for cable entry system and applied with two coats black bituminious paint (food grade) on both inside and outside surfaces of pipe after prepartion of surfaces complete all as specified and as directed.

Supply and fixing well cap suitable for 250 mm internal dia housing pipe made out of 8 mm thick steel plate duly welded with locking arrengement with holes for passing 10 Sqmm flat submersible cable and 100 mm dia column pipe complete all as specified and as directed .( Note :- After completion of the work the cap will be used to keep the tube well closed until the pump set is installed )

supply and fix cast iron sluice valve class PN 1.6 long body type ,with brass spindle both ends flanged with holes , ISI marked IS 14846.20 including carbon steel nuts bolts & washers,rubber gaskets etc with CI wheel fixed to water mains of size 100 mm bore complete all as specified and directed .

Supply and fix CI Non Return Valve flanged ends of class 1.6 PN with CI wheel, of size 100mm bore, including all fittings i.e nut& bolts, washer and gasket all complete all as specified and as directed .

Supply and fixing pressure gauge in pipe line 100 mm dia ,0 to 14 Kg / cm2 including all necessary fittings complete all as specified and as directed

Supplying laying and testing PVC isulated and sheathed flat submersible cable with stranded copper conductor cable of size 3 core 10 Sqmm 1100 volts grade incl lugs and fixed in submersible pump set complete all as specified and as directed .

M & L for RCC columns two nos having size of 300x 300 mm below GL 1.5 mtr depth and 3 mtr height above GL of M 25 grade having ISMB 200 of length 2.5 mtr placed at the top of the columns for lowering and unlowering of submersible pump and MS column pipes complete all as directed.

Supply, laying and testing Tubes, ' Medium Grade ' galvanised, 100 mm bore with all fittings; laid in trenches,complete all as specified

Supply, laying steel wire of 6 mm with PVC seathed for holding the submersible with necessary locking and fixing arrangement complete all as specified.

M&L Construction Brick Masonry Valve Pit of size 900x900x900 mm (Internal Dimension) one Brick thick Wall in Cement Mortar 1:4 on 100mm thick PCC 1:4:8 (40mm graded aggre-gate) in Foundation, Rendering 15mm thick internally and externally upto 150mm below GL, providing 3.0mm thick MS Sheet Valve Pit Cover, welded with 40x5mm Flat Iron Frame alround including provision of Hinges, Handle with Locking Arrangement and 40x40 x6mm Angle Iron Frame fixed on top of Valve Pit by means of holdfast 150mm long, embedd -ed in PCC 1:2:4 (20mm graded aggregate) Block of size 230x200x100 mm, applying two coats of Anti-corrosive Paint to all exposed Steel Surfaces over a coat of red oxide zinc chrome Primer after preparation of Surfaces and necessary Earth Work in Soft/ Loose Soil including demolition of unserviceable Valve Pit, complete all as specified and as directed.

Boring holes horizontally under Road without damaging the surface of Road (minimum 1.0 METRE below the Road Surface with the help of GI Tubing not exc. 150 mm bore (dia) for passing of pipes, complete all as specified and as directed.

Surface dressing in soft loose soil n exc 15 cm deep and getting out,complete all as directed.

Excavating in trenches, n exc 1.5mwideandnexc1.5min depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. and nexc 1.5 m in depth and as in soft and loose soil getting out,all as specified and as directed.

Removing excavated soil and depositing upto a total distance of 50m where directed at a alevel not exc 1.5m above the starting point complete all as directed.

M&L Cement Concrete 1:3:6 type C2 (40mm graded aggregate) in Foundations, Filling and Mass Concrete including use and waste Formwork required at Site, complete all as specified and as directed.

M&L for hardcore brocken stone or boulders of hardcore of gauge n exc 63 mm deposited, spread and levelled in layers n exc 15 cm thick watered and rammed to a true surface omplete all as specified and as directed..

S&F pre painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50 mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall fixed with self tapping screws complete all as specified and as directed.

S&F pre painted galvalume aluminium zinc coating GI based plain steel sheet 0.50 mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall fixed with L-type or cranked hook bolts complete all as specified and as directed.

S & F steel work in tubular trusses including special shaped washer etc complete using ERW or induction butt welded tubes conforming to IS 1161-1979 grade St-240 and including nut bolt and MS plate etc complete as sepcified and as directed.

M&L Cement Concrete 1:2:4 type B2(40mm graded aggregate),150 mm thick as in pavings, hard standing, footpath, laid in alternate bays complete all as specified and as directed.

S & F for flat iron of size 40x6 mm as in wind ties confiring to Fe-290 Gde E-165,complete all as specified and as directed.

M&L Painting two coats of synthetic enamel paint over a coat of red oxide primer to new steel Surfaces including prepration of surface of any description, not otherwise described, over 10cm width or girth complete all as specified and as directed..

PURBANCHAL BUILDERS