Augmentation and Improvement of LWSS Majra Misserwala Pardooni Sainwala and Kolar Panchayat in Tehsil Paonta Sahib District Sirmour HP

Amount

Trasportation of Rig along with 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 respect and as per direction of the Engineer-in-charge.

Earth work in foundation for digging tubewell in all kinds of soils including dewatering , struting shoring , from Groundlevel upto 5 mtr,.including disposing excavated soil in all leads, and lifts,complete in all respects as per direction of Engineer-in-charge.

Drilling of bore as per specifications laid down in IS: 2800-1991 (Part-I)with up-to-date ammendments, if any,with Direct Rotary Rig drilling Rig starting with 650-600 mm dia M.S. pipe reduced to 450-400mm dia M.S. pipe confirming to IS 4270-2001 with up-to-date amendments , if any. in all kinds of soils, boulders, rocks, collapsible strata, saturated soils , artesian conditions including the cost of all consumables, stores,water fuel , lubricants and other accessories etc. complete in all respects as per the directions of Engineer-in-charge.

a) Drilling and lowering of M.S.casing pipes confirming to IS 4270-2001 with up-to-date amendments if any of suitable sizes as mentioned above from 5 to 30 mtrs below ground level within all leads and lifts.

b) Drilling and lowering of M.S.casing pipes confirming to IS 4270-2001 with up-to-date amendments if any of suitable sizes as mentioned above from 30mtrs to 60 mtrs. below ground level within all leads and lifts.

c) Drilling and lowering of M.S.casing pipes confirming to IS 4270-2001 with up-to-date amendments if any of suitable sizes as mentioned above from 60 to 90 mtrs below ground level within all leads and lifts.

d) Drilling and lowering of M.S.casing pipes confirming to IS 4270-2001 with up-to-date amendments if any of suitable sizes as mentioned above from 90 mtrs to 125 mtrs. below ground level within all leads and lifts.

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

a) Supplying and lowering of IS marked Electric Resistance welded M.S. pipe 300mm dia nominal size housing ,8 mm thick having out side dia mtrs. 323.9 mm bevelled edge confirming to IS: 4270 - 2001 with up-to-date ammendments, if any, about 4mtrs. to 7 mtrs.in length, welded without any circumferential 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.

b) Lowering of screwed & Socketted IS marked Electric Resistance welded M.S. slotted pipe 300mm dia nominal size housing 8 mm thick having out side dia mtrs. 323.9 mm screwed and socketted confirming to IS: 4270 - 2001 slot size 1.57x75mm welded with up-to-date ammendments, if any, about 4mtrs. to 7 mtrs.in length, welded without any circumferential 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.

Providing and fixing M.S. taper/reducer as per lengths approved by Engineer-in-charge, the material of M.S. taper/reducer shall be equivalent to parent pipe material and shall conform to chemical composition as per 4270-2001 with upto date amendments, if any , complete in all respects as per directions of the Engineer-in-charge.

a) Supplying and lowering of IS: marked Electric Resistance welded M.S. pipe 200 mm nominal size housing, 6.4 mm thick having out side dia mtrs. 219.1 mm , bevelled edge confirming to IS: 4270- 2001 with up to date amendments , if any ,about 4 mtrs. to 7 mtrs in length, welded without any circumferential 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 directions of the Engineer-in-charge.

b) Lowering of Screwed & Socketted IS: marked Electric Resistance welded M.S. slotted pipe 200 mm nominal size housing, 6.40 mm thick having out side dia mtrs. 219.1 mm , scewed & Socketted Confirming to IS: 4270- 2001 slot size 1.57x75mm welded with up to date amendments , if any ,about 4 mtrs. to 7 mtrs in length, welded without any circumferential 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 directions of the Engineer-in-charge.

Providing and fixing M.S. centralized guides at suitable spacing for each tube well as per IS-226-1991 with up-to date amendments, if any, within all leads and lifts, 1x4 Nos. complete in all respects as per the directions of the Engineer-in charge.

Supplying, lowering and fixing in position IS marked mild steel bail plug of 200 mm/300mm dia meter with "U" hocks as per IS:2800-1991 with up-to-date amendments, if any ,within all leads and lifts, complete in all respects as per directions of the Engineer in charge.

Providing and fixing in position threaded iron cap with locking arrangements 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 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 elangated pieces, shall be of sub rounded to rounded grains with minimum angular features of size 2- 2.35 mm, shall be free from impurities such as shafe, shale, mica, felspar,clay, sand,dirt,loam ,baematite 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, with in 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 throughly 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 , until l the well is sand free as per IS:11189-1985 with up-to-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 of verticality of the tubewell as per clause 4.3 of IS 2800 (Part-II): 1979 with upto date amendments, if any, using plumb 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 ammendments, if any ,as appended with the tender documents and handed over complete in all respects as directions of the Engineer-in-charge.

Dismentalling of Rigs 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 tubewell in complete shape as per appendix B of the clause 7 of IS: 2800 (Part-II) 1979 with upto date ammendments, if any, as appended with the tender documents, in laminated form , in triplicate. Complete in all respects as per directions of the Engineer-in-charge.

M/S Sharma Enterpirses

H.N.SINGH AND COMPANY

ABTAR SINGH AND COMPANY