A/R and M/O WSS at Baddi Distt. Solan HP Sub Head Drilling and lowering of Tube Well in Ph I Baddi Near office Building

Amount

Erection

Erection of drilling i/c levelling of site where required i/c transportation with all accessories at site of work including carriage of material in all leads &lifts.

Drilling as per specifications laid down in 2800-1964 (with precussion or combination rig) starting with 550-450 dia. M.S. pipe and reducing to 350-300 mm M.S. pipe confirming to IS 4270- 1967 in all kinds of soil i/c the cost of all consumble stores and P.O.L. including carriage of material in all leads and lifts. Confirming to BIS speification.

From 0 to 25.00 mtr. Below Ground level.

From 25.00 mtr. to 50.00 mtr. Below Ground level.

From 50.00 mtrs. to 100.00 mtr. Below Ground level.

From 100.00 mtr. to 150.00 mtr. Below Ground level.

From 150.00 mtr. to 180.00 mtr. Below Ground level.

Lowering mild steel pipes conforming to ISI Specification No. 4270-1967 in vertial position i/c cost of all scaffolding derricks, holes, clamps complete in all respects according to IS 2800-1964 and to the satisfaction of the Engineer-in-charge i/c cost of all cuttings, threading, welding of pipes including carriage of material in all leads and lifts. Confirming to BIS speification. JINDAL HISSAR / TiSSCO .

300 mm nominal size

250 mm nominal size

200 mm nominal size - Perforated /slotted pipe

Supplying lowering and fixing in position M.S Bail Plug with "U" hooks as per IS: 2800-1964 including carriage of material in all leads and lifts.Confirming to BIS speification.

Providing and fixing in position Threaded iron cap with locking arrangement of approved design to prevent foreign matters getting into the bore-hole as required including carriage of material in all leads and lifts.Confirming to BIS speification.

Providing and fixing centralized guides as per IS- 2800-1964 at suitable spacings including carriage of material in all leads and lifts. Confirming to BIS speification.

Gravel packing in tubewell construction in accordance with IS: 4097, including providing gravel fine/ medium/coarse, in required grading & sizes as per actual requirement, all complete including carriage of material in all leads and lifts. as per direction of Engineer-incharge.

Extraction of blind casing/casing pipes of all sizes starting from bottom of the bore including carriage of material in all leads and lifts. .

Development of tube well in accordance with IS : 2800 (part I) and IS: 11189, to establish maximum rate of usable water yield without sand content (beyond permissible limit), with required capacity air compressor, running the compressor for required time till well is fully developed, measuring yield of well by “V” notch method or any other approved method, measuring static level & draw down etc. by step draw down method, collecting water samples & getting tested in approved laboratory, i/c disinfection of tubewell, all complete,including hire & labour charges of air compressor, tools & accessories etc., all as per requirement including carriage of material in all leads and lifts. and direction of Engineer-in-charge .

Dismentling of the drilling along with all other equipment after completion of job. including carriage of material in all leads and lifts.

Collection of preservation of sample.

Collection & testing of water samples.

Disinfection of tubewell (after completion of field test).

Providing and laying clay seal (intonent) in the Bore well 5.00 Depth between (85.00 to 90 mtrs) including carriage of material in all leads and lifts

H.N.SINGH AND COMPANY