PROVN OF ONE SUBMERSIBLE BORE WELL AT AIR FORCE AND SPECIAL REPAIR/REPLACEMENT OF BORE WELL UNDER GE MISAMARI

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. ( 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 arrengement for execution of the work). ( For Air Force location) Note : Aquifer samples to be collected during drilling and preserved in sample box for analysis and cost for same shall deemed to be included in unit quoted rate under item No 01 to 04

All as per item No 01 but for depth from 60 meters below ground level upto 90 meters depth, Complete all as specified and directed by Engr-in- Charge.

All as per item No 01 but for depth from 90 meters below ground level upto 120 meters depth, Complete all as specified and directed by Engr-in- Charge.

All as per item No 01 but for depth from120 Mtr and exceding depth below ground level, Complete all as specified and directed by Engr-in- Charge. Note :- Boring to any depth beyond 140 mtr, If required at site shall be carried out with prior approval of Accepting Officer and shall be paid under Item No 04 above

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 50 mtr depth. ( Note for Item No 05 to 08 :- 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 arrengement for execution of the work.) Note : Aquifer samples to be collected during drilling and preserved in sample box for analysis and cost for same shall deemed to be included in unit quoted rate under item No 05 to 08)

All as per item No 05 but for depth from 50 meters below ground level upto 70 meters depth, Complete all as specified and directed by Engr-in- Charge.

All as per item No 05 but for depth from 70 meters below ground level upto 90 meters depth, Complete all as specified and directed by Engr-in- Charge.

All as per item No 05 but for depth from 90 Mtr and exceding depth below ground level, Complete all as specified and directed by Engr-in- Charge. Note :- Boring to any depth beyond 100 mtr, If required at site shall be carried out with prior approval of Accepting Officer and shall be paid under Item No 08 above

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. Make : Jindal/Sail/Nezone/TATA/TISCO

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. Make : Jindal/Sail/Nezone/TATA/TISCO

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. Make : Jindal/SAIL//Nezone/Hindustan

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 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 ). ( For Air force Location)

Development of tube well with air compressor of capacity 250 psi /1000cum till sand/mud free water of potable quality is obtained 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 ). ( For Rekhamari Pump House)

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).

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 specified and 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. Make : Jindal/Sail/Nezone/TATA/TISCO

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. Make : Leader/Sant/KVMC/Kirloskar

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. Make : Leader/Sant/KVMC/Kirloskar

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 . Make : KEI/Polycab/havells/RICHA

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 and as directed by Engr-in-charge. Make : Jindal/Sail/Nezone/TATA/TISCO

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

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 by Engr-in charge..

M&L for earthing complete with galvanised steel earth plate electrode size 600x600x6.0mm thick buried directly in ground vertically in a pit of depth not less than 2.25 mtr below ground levels with top edge of the earth plate not less than 1.5 mtr below normal ground level surrounded from all sides by mixture of charcoal and common salt and electrode connected to and including galvanised Iron strip of size 32 x 6 mm by means of bolts, nuts, check nuts and washers of galvanised steel and GI Protection pipe light grade 40 mm dia bore for watering funnel with wire mesh refilling with vegetable soil without bolders and stones, gravels and aggregate etc,and CI cover with frame, PCC chamber pit with PCC 1:3:6 type C-2 excavation and earth work all as shown in electrical plate No 5 connected to earthing test point all as specified or indicated including testing on completion. NOTES : The unit rate includes for protection pipe and GI strip from top of earth plate up to 5.00 meter above ground level.

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.

Supply, Installation, testing Comissioning of Borewell submersible pump set of 20 HP suction 100 mm and delivery outlet 80 mm of head 76 mtr complete all as specified and as directed by Engr-in-charge.Make:- KSB Model- BPD 302/08 or equivalent of Kirloskar and Crompton.

Supply, Installation, testing Comissioning of 20 HP star delta starter for 20 HP borewell submersible complete all as specified and as directed by Engr-in-charge. Make:- L&Tor equivalent of ABB and Havells .

M/S RANA ENGINEERING ENTERPRISE

R R ENTERPRISES

Saraswati Auto Works