PROVN OF BOREWELL AT MOUNTAIN SHADOW UNDER GE AF BORJHAR

Amount

Excavation in trenches, n.exc 1.5m wide and n.exc 1.5 m in depth, for laying of cables/pipes and getting out in soft/loose soil, complete all as as directed.

Removing excavated soil/materials n. exc. 50m and depositing where directed and levelled in layers n. exc. 1.5m thick, above the starting point, complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc. 25cm in soft/loose soil complete all as specified and as directed.

Trial bore manually/mechanically for inserting 50mm dia PVC pipe upto 60 metre depth below ground level in any kind of soil/strata for testing the water availability and to testing the chemical characterestic particularly NITRITE content including PVC pipe 50mm dia and PVC filter as required length at site complete all as directed (the arrangement for pulling cut water i.e electric pump/IC driven pump and hand tubewell including fittings as required has to be provided by contractor at no cost basis)

Testing of raw water for all chemical parameters and testing from Govt approved laboratory or as approved by the GE, complete all as specified and directed.

Transportation of well drilling rig and equipment to work site for trial bore and development of tube well including erecting and dismantling of the same and return back after completion of work including testing of bore for yield of 10,000 gallons/hour, complete all as specified and as directed.

Drilling and development or bore hole 300 x 200 mm tube well by reverse rotary circulation method rig machine 25 inch bore size top or bottom by different cutters including all arrangement with appliances and excavation suitable size of pit for clay for circulation of water using bentonite or silty clay as per site/soil condition for settlement of bore hole for the depth from ground level of 30 metre depth, complete all as specified and as directed.

Drilling and development or bore hole 300 x 200 mm tube well by reverse rotary circulation method rig machine 25 inch bore size top or bottom by different cutters including all arrangement with appliances and excavation suitable size of pit for clay for circulation of water using bentonite or silty clay as per site/soil condition for settlement of bore hole for the depth from ground level exc. 30 metre but n.exc 60 metre depth, complete all as specified and as directed.

Drilling and development or bore hole 300 x 200 mm tube well by reverse rotary circulation method rig machine 25 inch bore size top or bottom by different cutters including all arrangement with appliances and excavation suitable size of pit for clay for circulation of water using bentonite or silty clay as per site/soil condition for settlement of bore hole for the depth from ground level exc. 60 metre but n.exc 90 metre depth, complete all as specified and as directed.

Drilling and development or bore hole 300 x 200 mmtube well by reverse rotary circulation method rig machine 25 inch bore size top or bottom by different cutters including all arrangement with appliances and excavation suitable size of pit for clay for circulation of water using bentonite or silty clay as per site/soil condition for settlement of bore hole for the depth from ground level exc. 90 metre but n.exc 130 metre depth, complete all as specified and as directed.

Electrologging test with using suitable equipments for the bore hole before sinking/lowering of pipes, filters etc., for assessing proper delineation of water from government recognized agency/Govt firm and report shall be submitted to GE for approval, complete all as specified and as directed.

Supplying lowering, assembling and fixing, 300 mm dia bore ERW, heavy duty, MS housing pipe of 7mm wall thickness, plain ended arc weld butt joint with heavy duty collar and 32x6 mm mild steel flat iron centre guide in each joint (04 Nos of each joint) complete all as specified and as directed.

Supplying lowering, assembling and fixing, 200 mm dia bore ERW, heavy duty, MS housing pipe of 7 mm wall thickness, plain ended arc weld butt joint with heavy duty collar and 32x6 mm mild steel flat iron centre guide in each joint (04 Nos of each joint) complete all as specified and as directed.

Supplying and fixing in position 200 mm dia with wall thickness of 7.3 mm stainless steel slotted pipe strainer (ISI marked) conforming to relevant IS, welded with MS pipe and heavy duty collar and welded centre guide MS flat iron 32x6 mm, complete all as specified and as directed.

Supply, lowering, assembling and fixing in position 200 mm dia bore heavy duty bail plug, 3 meter long ERW MS pipe of 7.00 mm and cover with 6mm plate duly welded, complete all as specified and as directed.

Supply and fixing in position by welding, heavy duty MS reducer 300x200 mm of wall thickness 7mm and 32x6 mm MS flat iron centre guide 02 Nos., complete all as specified and as directed.

Supply and fixing housing clamp made out of 100 mm x 12 mm thick and 700 mm long flat iron for casing pipe of size 300 mm including necessary nuts, bolts and washers, complete (two half pieces) all as specified and as directed

Supply and fixing well cap in two parts made out of mild steel plate of appropriate size for covering 300 mm bore of tube well, central arrangement, duly welded with locking arrangement, making holes for passing 100mm dia column pipe and 2 run of 6 Sqmm flat submersible cable, complete all as specified and as directed.

Development of tube well with air compressor of suitable capacity till sand/mud/silt-free water of potable quality is obtained to achieve minumum discharging capacity of 20,000 GPH including yield tesing for the tube well by using same air-compressor for minumum discharging 17000 Gallon per hours for at least continuous 8 hours run per day for three countinuous days complete all as specified and directed. Note: (i) V Notch and compressor with accessories and fuel shall be aaranged at site by the contractor and cost is deemed to included in the quoted rate. (ii) Total development period shall be for a period of 72 hours excluding 2 hours rest period after every 8 hours.

Providing grounding sanitary seal around the bore hole of 5m x 5 m x 50 cm thick with PCC (1:2:4) type B-1 using 20 mm graded stone aggregate including necessary formwork, complete all as specified and directed.

Supply and packing washed fine gravels round or sub-rounded of size 3mm to 8 mm as approved in packed thickness all around the housing and strainer pipe, complete all as specified and as directed.

Supply and fixing and jointing PVC insulated 3 core flat copper submersible cable of 10 Sqmm, size 1100 volt grade heavy duty including necessary jointing with existing cable and connections, complete all as specified and as directed. Make: As per list of approved make.

Supply and fixing flexible steel rope of size 8/10 mm holding pump motor inside the casing pipe properly fixing at outside at pillar/pipe, complete all as specified and as directed.

M & L for PCC 1:3:6 type C2 using 40 mm graded stone aggregate as in foundation, filling and mass concrete, complete all as specified and as directed.

M & L for mild steel TMT bars 10mm dia and over, cut to length, bent to shape required, including cranking , bendiung spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips complete all as spcified and as directed

Material and labour for construction of ISMB post and post plate with necessary welding work for lifting/lowering of submersible pump set made out from ISMB 175 FE-410 Gde-A with and including necessary excavation work, complete all as specified and as directed by Engr-in-Charge. Note: Necessary PCC work shall be measured under relevant items.

Supply and lay pipe galvanised, "Heavy Class", including fittings of 100 mm dia bore both side flanged welded as in Col, 3 meter long each, lowering in bore complete all as specified and as directed.

M & L for disconnecting all connections/parts (which is necessary) for shifting of IR Plant (oxidation chamber), Pre filter and secondary filter including air compressor complete) from one location to another within a radius of 200 metre and refixing the same after shifting of Iron removal plant, complete all as specified and as directed.

Supply and laying ductile iron socket/flanged pipe, including all type of fittings such as Tee, elbow, bend, socket and spigot, reducer, end cap including all jointing components, complete fixed on wall/trenches of size 100 mm dia, class K-9, complete all as specified and directed by Engr-in-Charge. Make: All as per approved list.

Supply and fixing sluice valve of 100 mm 'flanged ends of class 1.6 PN size, complete all as specified and as directed by Engr-in-Charge. Make as per approved list.

S & F Non return valve of 100mm dia flanged ends of class 1.6 PN size, complete all as specified and as directed. Make: As per list of approved.

S & F pressure gauge valve with a range of 0-200 psi or 0-14 Kg with and including arrangement for fixing of in existing pipe line, complete all as specified and and directed by Engr-in-Charge.

Supply and laying testing of cable XLPE insulated screened PVC bedded galvanised steel strip wire armoured electric power cable heavy duty standard aluminium conductor 1.1 KV volt grade of size 50 Sqmm, 3.5 core, complete all as specified and as directed.

Supply, installation, commissioning and testing LT panel board, 3 phase, 4 wire, system indoor type factory made, supported with MS angle iron frame of size 50x50x6mm, dust and vermin proof cubical type interlocking arrangement (IP-66 protection) fabricated with 3.15 mm CRCA sheet with anti-corrosion coating and finally polyester powder coated of finite green fully compartment with providing with suitable size of coated aluminium busbar strip, complete all as specified and as directed for the following :- (a)INCOMING: (i) MCCB 63 Amps 4 pole, 415 Volts, 25 kA thermal adjustable type. (b)OUTGOING: (i) MCB TP 63 Amps 240 Volts, 10 kA-02 Nos (ii) Starter of capacity 15W/20HP suitable for 20 HP Motor (iii) Digital type amp meter 0-100 Amps - 01 No (iv) Digital type voltmeter 0-500 Volts - 01 No. (v) Indicator lamps (RYB) - 01 set of 3 (vi) Insulated Aluminium bus bar rating 100 Amps 3 phase neutral - 01 set (vii) Chamber for incoming and outgoing cable.

M&L for Construction of brick masonry valve pit of internal dimension 90CM x90 CMx120 CM depth including necessary excavation and earth work in soft/loose soil with sub class 'B' bricks, build in cement mortar (1:4), PCC (1:4:8) type D2 (Using 40 MM graded stone aggregate) as in foundation, 75mm thik PCC (1:3:6) type C1 (using 20 mm graded stone aggregate) as in concrete floor and PCC (1:2:4) type B1 (using 20 mm graded stone agreegate ) as in coping and 15mm thick rendering as internal and exposed @ 2% by weight of cement with and including MS Frame with 40X40 x6 mm angle iron, 3.15 mm thick MS Sheet cover plate with appropriate size lifting handles and locking arrangments 01 No 50 mm size 4 levers lock with keys in duplicate including painting of steel iron surface with two coats of synthetic enamel paint over one coat of red oxide primer includiing preparation of surface, three coats of white wash on plastered surface (exposed to view) including necessary excavation in soft loose soil, returning, filling and removal of surplus soil to a distance not exceeding 50 M complete all as specified and directed.

Earthing complete with galvanised steel earth plate electrode 60×60cm.× 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to galvanised iron earth lead by means of bolts, nuts, check nuts and washers of galvanised iron steel strip 32x6mm as earthing lead as shown in Electrical Plate No 4 connected to earthing test point all as specified or indicated including testing on completion including necessary excavation and earth work in soft/loose soil, earth pit in PCC 1:3:6 type C1 using 20 mm stone aggregate funnel, 20 mm dia GI med grade water pipe, 50 mm dia GI light grade earth lead protection pipe, CI frame and cover, wire, copper lugs, wire mesh, charcoal or coke and common salt in alternative layer all around the earth electrode compacted thickness 15 cm including excavation and earth work pit cover including disposal of surplus soil to a distance not exceeding 50 m, complete testing on completion complete all as specified & directed by Engr-in-Charge.

T.H.ASSOCIATES