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| 1 | M&L for Trial bore Drilling not less than 250 mm bore hole by ODEX method to any depth below the ground level in any kind of HARD ROCK / Hard Stone / Boulders/ any kind of soil strata upto 150 mtr deep including disposal of surplus soil to a distance not exc 50 mtr away all as specified and directed by Engineer-in-Charge.Note: 1) In case of countering rock/collide prior to 30 mtr depth from ground level the decission of the Garrison Engineer for reboring shall be final and binding. Specific order in writing shall be issued by Garrison Engineer for reboring and the quantities shall vary accordingly. 2) cost of transportation of Odex plant is included in the unit rate. (100 RM x 2 Nos |
| 2 | Development of trial bore by ODEX full casing reaming up from 250 mm to 350 mmfor 60 RM from ground level including casing pipe by lowering mild steel ERW ISI Marked casing blind pipe having wall thickeness 8 mm as per IS 4270-2001 and jointing with Electric arc welding screwed and socketed in in random length and pea gravel as per site requirement complete all as specified and directed by Engr-in-charg(a) Reaming up to 675 mm for 30 RM from ground level including casing pipe of 300 mm dia. and thickness 8mm and pea gravel |
| 3 | Development of trial bore by ODEXfull casing reaming up from 250 mm to 350 mmfor 60 RM from ground level including casing pipe by lowering mild steel ERW ISI Marked casing blind pipe having wall thickeness 8 mm as per IS 4270-2001 and jointing with Electric arc welding screwed and socketed in in random length and pea gravel as per site requirement complete all as specified and directed by Engr-in-charge:(b) Reaming up to 525 mm from depth exceeding 60 RM to 200 M including casing pipe of 250 mm dia and thickness 8mm and pea gravel |
| 4 | Additional cost for slotted pipe of 250 mm dia. In Ilieu of casing pipe of 250 mm dia. |
| 5 | Fixing cost for MS reducer, bail plug, well cap, MS Strip for catering, MS ioron clamps, electric logging and sample strata box. |
| 6 | Supply and fixpump, electric driven 415 V, TP Suitable for 200/250 mm dis bore well (Casinfg caping size 200/250 mm) supply and install complete up to 7.5 WHP inclusive of 40 metre long submersible cable and startrer. (7.5 WHP x 12328) |
| 7 | Supply and fix Submersible water proof PVC insulated copper cable 3 core suitable for 10 HP Pump set |
| 8 | Supply and fixing galvanised steel water tubing(Heavy class) 80 mm (3\") bore including all necessary fittings such as bends, L bows, short piece connections, backnuts, caps plugs, unions couplings, flanges, sockets etc, laid in trenches including inter connection between buildings/pumps/pump houses complete all as specified and directed at site by the Engineer-in-incharge. |
| 9 | Supply and fixing galvanised steel water tubing (Medium class) 80 mm (3\") bore including all necessary fittings such as bends, L bows, short piece connections, backnuts, caps plugs, unions couplings, flanges, sockets etc, laid in trenches including inter connection between buildings/pumps/pump houses complete all as specified and directed at site by the Engineer-in-incharge. |
| 10 | Supply and fixing in repairs CI sluice valveboth end flanged, gun metal spindle, iron wheel head including jointing, size of Sluice Valve Class PN 1.6 , 80 mm dia approved make complete all as specified and directed at site by the Engineer-in-incharge. |
| 11 | M&L for yield testing of tube well by continuous run with suitable equipment all as per IS-2800 part-II of 1979 including complete testing of water suitable for drinking purpose as per IS-10500 of 1991 from testing Laboratory approved by GE and report shall be submitted to GE. The well shall be tested 24 hours continuous after development of the well to acertain the yield. The air compressore/higher capacity pump required for the development of the well by means of over pumping shall be arranged by the contractor at his own arrangement. |
| 12 | Chemical/ bacteriological analysis and potability test of water obtained from borewell from approved lab and submitting the report in triplicate. |
