Source Strengthening of various LWSS under JSV TubeWell Sub Division Nalagarh in Tehsil Nalagarh, District Solan HP Sub Head Drilling lowering of assembly of 2 Nos Tubewells 100 mtrs depth each and of 2 Nos DTH bore 100 mtrs depth each JOB No 1

Amount

DRILLING OF T/ WELL ( 2 No.100 mtrs depth ) (As per Data sheet No. 1 )

Transportation of Rig alongwith allied accessories etc.complete including errection and levelling at site through all kinds of roads, approaches fields etc.,in all leads and lifts upto site of work complete in all respects as per the directions of Engineer-in-Charge.

Drilling of bore as per specification laid down in IS-2800-1991 ( Part-1) with upto date ammendments (if any) with Rotary Rig satrting with 650-600 dia MS pipe reduced to 450-400 mm dia M.S pipe confirming to IS 4270-2001 with upto date amendments (if any) all kinds of soils boulders rocks collepsible strata saturated so as artesian conditions including the cost of all consumbales stores water fuel lubricants and other accessories etc. complete in all respects as per directions of Engineer-in-Charge.

Drilling and lowering of M.S.casing pipes confirming to IS-4270-2001 with upto date ammendments (if any) of suitable sizes as mentioned above from 0 to 30 metres below ground level with all leads and lifts.

Drilling and lowering of M.S.casing pipes confirming to IS-4270-2001 with upto date ammendments (if any) of suitable sizes as mentioned above from 30 to 60 metres below ground level with all leads and lifts.

Drilling and lowering of M.S.casing pipes confirming to IS-4270-2001 with upto date ammendments (if any) of suitable sizes as mentioned above from 60 to 90 metres below ground level with all leads and lifts.

Drilling and lowering of M.S.casing pipes confirming to IS-4270-2001 with upto date ammendments (if any) of suitable sizes as mentioned above from 90 to 150 metres below ground level with all leads and lifts.

Collection, preservation and display of suitable size sample box with top lid and locking arrangement till handing over of the tube well to the department, complete in all respects as per directions of the Engineer-in-Charge.

Supplying and lowering of IS marked Electric Resistance Welded M.S.Pipe 300mm dia nominal size housing, 8 mm thick having outside dia metre 323.9.1mm screwed end socketted, confirming to I.S.4270-2001 with upto date amendments(if any) about 4 metres to 7 metres in length, welded without any circumfrential joints, into bore hole in vertical position including cost of all scaffolding derricks, poles, clamps embedded in foundation etc. including cost of all cutting, threading and welding of pipes etc. within all leads and lifts complete in all respects as per the directions of the engineer-in-Charge.

Supply and Lowering at site electric resistance welded (ERW) Stainless Steel slotted pipe of size 300 mm, 8 mm thick with slot opening 1.0 mm, as per IS 8110-1978 with upto date amendments(if any) and material. complete in all respects as per directions of the Engineer-in-Charge.

Supply and Lowering at site electric resistance welded(ERW) Stainless Steel Cage type "V" wire wound screens of size 300mm 8 mm thick with slot opening 1.0mm as per 8110-2000 with upto date amendments(if any) and material specifications as per AISI "American Iron and Steel Inst" Type Grade SS-304 in suitable lengths as per the site conditions, including the cost of SS socket 8mm thick(supplied by the Department) of length 140mm confirming to AISI grade 304 suitable to accomodate screen end ring including jointing screen with blind pipes including cost of all scaffolding derricks, poles, clamps embedded in foundation etc.including cost of all cutting threading and welding of pipes etc.within all leads and lifts complete in all respects as per the directions of the engineer-in-charge. Screen will be of continuous trapezoidal wire spirally wound around fabricated cage. The wrapping wire having a "V" shaped(Wedge) profile wire with flat surface on the outside and producing expanding slots on the inside of various dimensions, resistance welded to a cylindrical body made of number of longitudinal special high tensile support rods to provide smooth unrestricted bore which are in turn welded into cylindrical ring couplings on both sides of screens.

Providing and fixing M.S taper/reducer as per length approved by Engineer-in-charge. The material of MS taper/reducer shall be equivalent to parent pipe material and shall confirm to chemical composition as per clause 6.1 and table 1 of IS 4270:2001 with upto date ammendments (if any) omplete in all respects as per the directions of the engineer-in-Charge.

Supplying and lowering of IS marked Electric Resistance Welded M.S.Pipe 200mm dia nominal size housing, 6.4mm thick having outside dia metre 219.1mm screwed end socketted, confirming to I.S.4270-2001 with upto date amendments(if any) about 4 metres to 7 metres in length, welded without any circumfrential joints, into bore hole in vertical position including cost of all scaffolding derricks, poles, clamps embedded in foundation etc. including cost of all cutting, threading and welding of pipes etc. within all leads and lifts complete in all respects as per the directions of the engineer-in-Charge.

Supply and Lowering at site electric resistance welded (ERW) Stainless Steel slotted pipe of size 200 mm, 6.40 mm thick with slot opening 1.0 mm, as per IS 8110-1978 with upto date amendments(if any) and material. complete in all respects as per directions of the Engineer-in-Charge.

Supply and Lowering at site electric resistance welded(ERW) Stainless Steel Cage type "V" wire wound screens of size 200mm 6.30mm thick with slot opening 1.0mm as per 8110-2000 with upto date amendments(if any) and material specifications as per AISI "American Iron and Steel Inst" Type Grade SS-304 in suitable lengths as per the site conditions, including the cost of SS socket 8mm thick(supplied by the Department) of length 140mm confirming to AISI grade 304 suitable to accomodate screen end ring including jointing screen with blind pipes including cost of all scaffolding derricks, poles, clamps embedded in foundation etc.including cost of all cutting threading and welding of pipes etc.within all leads and lifts complete in all respects as per the directions of the engineer-in-charge. Screen will be of continuous trapezoidal wire spirally wound around fabricated cage. The wrapping wire having a "V" shaped(Wedge) profile wire with flat surface on the outside and producing expanding slots on the inside of various dimensions, resistance welded to a cylindrical body made of number of longitudinal special high tensile support rods to provide smooth unrestricted bore which are in turn welded into cylindrical ring couplings on both sides of screens.

Providing and fixing M.S.centralized guides at suitable spacing for each tubewell as per IS-226-1991 with upto date amendments(if any) within all leads and lifts 1 Nos.complete in all respect

Supplying, lowering and fixing in position IS marked mild steel bail plug of 200mm/300mm dia meter with "U" hooks as per IS 2800-1991 with upto date amendments(if any) within all leads and lifts complete in all respect as per directions of the Engineer-in-Charge.

Providing and fixing in position threaded iron cap with locking arrangments of approved design to prevent foreign matter from getting into bore hole as required within all leads and lifts complete in all respects as per the directions of the Engineer-in-Charge.

Supplying and packing of gravel consisting of hard quartz or other suitable material with an average specific gravity of not less than 2.5 not containing more than 2% by weight of thin flat or or elangated pieces, shall be of sub rounded to rounded grains with minimum angular features of size 2--3.35 mm, shall be free from impurities such as shafe, shale, mica, felspar, clay, sand, hamatite and organic materials as per IS-4097-1967 with upto date amendments(if any), around intake of tubewell with minimum thickness of shroud around screen generally 100mm to the entire depth of the bore as per IS 2800(Part-I) 1991 with upto date amendments(if any) within all leads and lifts complete in all respects as per directions of the Engineer-in-Charge.

Development of tubewell by back washing method, with air compressor of minimum 750 CFM capacity, pumping pipe of 200mm size and air line of minimum 65mm size or with other suitable method, till the well is thoroughly developed as per clause 4.2 of IS 11189:1985 with upto date amendments(if any) complete in all respects as per directions of the Engineer-in-Charge.

Development of tubewell by continuous over pumping method with VT pumps/submersible pumps of suitable capacity not less than double the discharge established by the Compressor method/design discharge, untill the well is sand free as per IS-11189-1985 with upto date amendments(if any) complete in all respects as per directions of the Engineer-in-Charge. The draw down and discharge to be established by running the VT/submersible pump continuously for 8 hours in the presence of Officer not less than the rank of Assistant Engineer.

Testing the verticality of the tubewell as per clause 4.3 of OS 2800(Part-II):1979 with upto date amendments(if any), using plumb bob or plunger 6mm smaller in dia within the inside diameter of the well casing. The results of the verticality test shall be recorded on proforma shown in Appendix A of IS:2800(Part-II_:1979 with upto date amendments(if any) as appended with the tender documents and handed over complete in all respects as per directions of the Engineer- in-Charge.

Dismantling of Rig or other allied accessories after completion of job within all leads and lifts complete in all respects as per directions of the Engineer-in-Charge.

Handing over of the tubewelll in complete shape as per appendix B of the clause 7 of IS 2800 (Part-II):1979 with upto date amendments(if any)l, as appended with the tender document, in laminated form, in triplicate complete in all respects as per directions of the Engineer-in-Charge.

DRILLING OF DTH Bore 2 NO 100 MTR Depth) (As per Data sheet No. 2 ) Transportation of suitable tempo mounted where only road available DTH & ODEX/ Precussion clayx/ RC drilling potable rigs alongwith necessary acessories etc. to the site of work and erection of rig including levelling etc. compplete in all respect as per the direction of ENgineer in CHarge.

Drilling bores of 165 mm dia as per IS: 2800-1979 from ground level in the overburden as per direction of the Engineer in Charge/ Hydrogeologist, with suitable rigs for drilling through rocky formation consisting of sand stone, lime stone, dolomites, conglomeraes, boulder, pebble, gravels, sand, silt, clay, or any other type of sedimentary, metamorphic and igneous rocks including cost of attachmnets, consumable stores, bits, water, POL etc. complete in all respect.

i) From 0.00 to 10 metre depth

ii) Above 10.00 metre depth.

Drilling bores of 152mm dia as per IS: 2800-1979 using ODEX (TUVEX) attachment required drilling in collapsible strata conglomerate, boulders, pebble, gravel, silt, clay etc.including cost of attachments consumable stores, bits, water Pol etc complete with system of simultaneous lowering of 125mm nominal bore 5.0 mm thick MSERW fincut casing pipe which will be welded together using 2.5 mm or 3.25mm dia.Advani Overlikon electrodes,with one plain end the other end chamfered to 50 degree removing paint on the area to be welded inclusive of the cost of boi-degradable and non-toxic foam flush etc. complete in all respect as per direction of Engineer-in-charge. MSERW fincut casing pipe ,casing shoe and bit tube as per requirement of ODEX to be paid seperately as per item no 6.

Supplying and lowering of IS Marked 125mm dia N.B. 5.00 mm thick fincut MSERW casing pipe as per IS 4270: 2001 and requirement of ODEX attachment from approved manufactureres complete in all respect as per the direction of Engineer in Charge at site.

Providing and fixing suitable casing shoe and bit tube as per requirement of ODEX attachment complete in all respect as per direction of Engineer in Charge at site.

Collection and perservation of soil samples in polythene bags complete in all complete in all respect as per direction of Engineer-in-charge/Hydrogeologist.

Development of borewell and yield testing with air compressor through V notch and disinfection etc.complete in all respect as per IS 2800-1979 and as per direction of Engineer-in-charge.

Supplying and lowering of IS marked riser pipes, medium class screwed and sockeded and welded as per IS-1239 (Part-II 1990 with upto date amendments electric resistance welded including cost of all cuttings.threadings and welding wherever required in randum lengths of 3mtrs inclusive of transporation charges to the site and as per direction of Engineer-in-charge/Hydrogeologist The seamless sockets shall be provided as per IS 13096-1991

65 mm dia GMS pipe

50 mm dia GMS pipe

32 mm dia GMS pipe 9 x 70

Supplying and errection of IS marked India Marked-III deepwell hand pumps (65mm) confirming to IS 13056-1991 consiting of pump head assembly,cylinder assembly and seven connecting rods complete in all respect for installation upto 30 mtrs depth as per direction of Engineer-in-charge.

Providing and fixing of extra connecting rods upto 3.00 mtrs length in hand pumps as per site requirement complete in all respect and as per direction of Engineer-in-charge.

Providing and laying cement concrete1: 2: 4 ( 1 cement : 2 sand: 4 graded stone aggregate 20 mm nominal size) in pedestal 75 cm x 75 cm x 40 cm including curing, cost of earth work in foundation form work in all leads and lifts complete in all respects as per the directions of the Engineer-in-Charge.

H.N.SINGH AND COMPANY

ABTAR SINGH AND COMPANY

M/S. Mast Ram Jaswal And Co.