SPECIAL REPAIR/ REPLACEMENT OF BOREWELL AT PUMP HOUSE NO. 07 and 10 AT AF STATION GORAKHPUR

Amount

M&L for drilling of pilot bore hole by Reverse/ Direct Rotary rig method upto 200m depth below ground level of bore size 250mm dia, in any type of strata including hard stone/ boulder etc including electro logging to find out potable water strata, preparation of site by cutting the grass bushes and levelling the same including disposal of soil from the site for Pump House No. 07 complete all as specified and directed. Note:- It shall ensure that the depth of drilling of each bore well is decided based on the actual strata encountered at site while drilling and keeping in view the potential aquifers for tapping of ground water so as to avoid infractuous drilling.

All as per item No. 01 above but for Pump House No 10.

M&L for reaming of the bore hole prepared under item No.1 above by Reverse/ Direct Rotary rig method upto 200m depth below ground level by 675mm dia reaming upto 40m depth from ground level, for Pump House No. 07 complete all as specified and directed.

All as per item No. 3 above but 525mm dia reaming for depth exc. 40 m & n.exc. 110m.

M&L for reaming of the bore hole prepared under item No.2 above by Reverse/ Direct Rotary rig method upto 200m depth below ground level by 675mm dia reaming upto 40m depth from ground level, for pump house no. 10 complete all as specified and directed.

All as per item No. 5 above but 525mm dia reaming for depth exc. 40m & n.exc. 110m.

Supply, assembling including jointing, lowering and fixing in position plain mild steel sheet ERW casing pipe of 350mm bore of thickness 8mm conforming to IS 4270-1992, pipe jointed and welded with coupler ring. welding shall be done through out circumference of the pipe and coupler ring for Pump House No. 07 complete all as specified and directed. Note:- Length of pipe shall not be less than 2.4m except where length of pipe is required less than 2.4 meters.

All as per item No. 7 above but casing pipe of 200mm bore, lowering and fixing in position with reducing socket 350mm x 200mm bore jointed and welded with pipe. Note:- Reducing socket 350mmx200mm bore shall be measured and paid separately.

Supply, lowering and welding MS ERW slotted housing pipe of size 200mm bore having thickness 8mm as per IS-4270:1992 and slot size 1.19mm and area of slot between 15 to 22% of screened area including welding of pipe complete, all as specified and directed in built welding for Pump House No. 07.

All as per item No. 07 above but for Pump House No 10.

All as per item No. 08 above but for Pump House No 10.

All as per item No. 09 above but for Pump House No 10.

S&F mild steel reducing socket 350mmx200 mm of 8mm thickness of wall including welding, MS strip 40x6 mm (02 Nos) on each joint extended 75mm on each side complete all as specified and directed.

S&F wrought iron bail plug 200 mm dia, 10 mm thick made of MS sheet bore complete all as specified and directed.

S&F well cap for 350 mm size and 8 mm thick MS sheet threaded and similar to housing pipe complete all as specified and directed.

S&F MS centering guide made out of 40x6 mm MS flat iron complete all as specified and directed.

S&F housing clamp for 250mm dia pipe made out of MS flat iron 100x12mm thick with required bolts, nuts & washers including painting with two coats of black bituminous paint over a coat of red oxide prime complete all as specified and directed.

M&L for packing of pea gravel of size 2 to 4mm of natural round in shape washed brought direct from river bed and packing around the casing pipe to entire depth upto ground level complete all as specified and directed.

M&L for development of tube well by means of 265 cfm air compressor until sand free clear potable water up to 10 PPM is obtained and test by using diesel engine driven turbine pump to get max yield and discharge measured complete all as specified and directed.

M&L for Yield test by V notch method and submitting the test report complete all as specified and directed.

M&L for testing electric logging in pilot bore and submitting the report in triplicate (from approved lab of Govt) complete all as specified and directed.

Supply, lowering, jointing and testing MS black column pipe, 3 mtr long, heavy duty, 150 mm bore, wall thickness 5.4 mm, both end flanged with heavy duty MS flange not less than 16 mm screwed and welded inside and outside. The flange end making surface shall be made smooth including welding of 04 Nos strip of 5.04 mm thick 25mm wide and 50 mm long covering pipe and flanged, both end flanged having 08 Nos predrilled hole not less then 16 mm including rubber gasket, nut bolts and washer, pipe should be duly painted with anti corrosive paint for Pump House No. 07 complete all as specified and directed.

All as per item No. 22 above but for Pump House No 10.

M&L for tail piece made of MS pipe of size 100mm x 150 mm, 01 mtr long of wall thickness 5.4 mm both end flanged with suitable MS flanged with 08 Nos predrilled holes of size 16 mm and welded with 04 Nos strip made out of MS plate of size 5.4 mm thick 25 mm wide and 50 mm long and flanged end pipe should be duly painted out side complete all as specified and directed.

Supply and lowering submersible pump set 55-33m nominal head capacity 700-1600 LPM, electric driven coupled with 3 phase electric motor not less than 15 HP with all accessories including GI Flanged, reducer, Nipple, nut bolt washer and rubber insertion sheet gasket for jointing including MS clamp with nut bolt 2 No complete along with complete all as specified and directed. Note: Column pipe and accessories with fixing material will be measured and paid separately.

S&F of submersible cable of size 10 sq mm, 4 core flat cable 1100 Volts Grade with copper conductor PVC sheathed conforming to IS-694:1977 complete all as specified and directed.

M&L for earthing with Galvanised iron earth plate electrode 600x600mm and 6mm thick buried directly in ground (earth pit not less than 2.25 mtr deep below normal GL) with top of earth plate not less than 1.5 mtr below GL connected to GI earth strip of size 32x6mm connected to earth plate electro by means of GI nuts, bolts, and washers earth strip protection with and incl 40mm dia medium grade ISI marked GI pipe as shown in electrical plate No 5 of MES Sch Part-I, with and incl PCC 1:3:6 type C-1 pit with cover of RCC 1:2:4 type B-1 reinforced with welded steel wire fabric not less than 4 Kg per Sqm, watering arrangements with 20mm dia GI medium graded pipe ISI mark, GI funnel with GI mesh, filling with mixture of common salt and charcoal, necessary excavation and earth work in soft/loose soil, incl test point, testing and commissioning complete all as specified and directed. Note: GI earth strip with GI pipe protection upto 7.5 mtr shall be deemed included in the item.

Supply, fabricate, erect, testing and commissioning in replacement LT outdoor feeder pillar box of size 800mm x 800mm totally enclosed weather and vermin proof, suitably ventilated, 440 Volts, 50HZ,AC supply, factory made, fully compartmentalized made out of 3.15 mm thick CRCA sheet for load bearing and 2.00 mm thick non load bearing portions, protection of enclosure IP-54 as per IS-2147 of 1962 complete with pre-treatment with approved colour including suitable angle iron/flat iron frame work/supports, danger notice board, excavation and earth work, PCC foundation etc, out door type, cubical type as required with and including the following, supplied fitted and connected internally and connected to existing earthing complete all as specified and directed with followings:-. (a) 4 No aluminium busbar of 63 Amp (b) MCB, TPN, 4 pole of capacity 40 Amps C-curve as incomer (c) Fully automatic Star-Delta motor starter, type MN with SPP feature motor rating 15 HP, 11.25 KW, AC 3 Phase, 415 Volt, 50 Hz maximum relay range 9.0-15.0 Amp. (d) MCB, SPN, 6-32 Amps with LED Indicating lamps for main supply indicating R, Y, B, G set, Three phase Voltmeter and Three phase ammeter (e) Low level water guard–01 set.

M&L testing chemical/ bacteriological analysis and potablity test of water obtained from borewell from approved lab and submitting the report in triplicate (from Govt lab) complete all as specified and directed.

Supply and laying DI pipes K-9 of 150mm dia with flanged joint of complete all as specified and directed.

M&L for DI special, such as tees, bends of any sizes and radius, tapers, collars, tail piece caps and plug upto 150 mm bore Di flanged pipe complete all as specified and directed.

M&L for fabrication of MS nipple 0.6 m long 100 mm dia threaded both end externally flanged 1 end with heavy duty flanged cold drilled 4 holes and provision of grove for cable entrance system complete all as specified and directed.

M&L for steel rope 8 mm dia with required size clamp nut and bolt for hanging submersible pump and motor complete all as specified and directed.

S&F CI non return valve of size 150 mm dia, horizontal flanged end confirming to IS-5312 including nuts, bolts, washers and rubber gaskets complete all as specified and directed.

S&F cast iron sluice valve of size 150 mm dia class PN- 1.6 confirming to IS-14846 flanged and drilled hole having stainless steel spindle with cast iron wheel at top complete with nuts, bolts, washers and rubber gaskets complete all as specified and directed.

S&F set of feed pipe made out of 80mm nominal bore GI pipe medium grade each of suitable length and provided with GI socket and plug for feeding pre gravel complete all as specified and directed.

Excavation in trenches in soft/loose soil n.exc 1.5 mtr wide and n.exc 1.5 mtr depth and getting out for cable/pipe trench complete all as specified and directed.

Returning, filling in including spreading, leveling, watering and well ramming in layers not exc 25 cm thick complete all as specified and directed.

Removing surplus excavated material not exc 50 mtrs and depositing where directed at a level not exc 1.5 mtr above the starting point complete all as specified and directed.

Supply and providing sand cushioning with dry clean sand 15 cm below cable and 8 cm above the cable complete all as specified and directed. Note: Punned thickness shall be measured for the purpose of payments.

Supply and laying burnt bricks old size sub class-B laid in trenches for cable protection with length of brick perpendicular to length of cable complete all as specified and directed.

S&F 80mm bore GI pipe, light grade with all fittings laid in trenches, road crossing and fixed to walls, on poles etc for cable protection complete all as specified and directed.

Supply, laying and testing 35 Sqmm, 3.5 Core XLPE insulated, armoured heavy duty electric cable, screened PVC bedded, galvanised steel strip or wire, with aluminium conductor 1100 V grade, laid in trenches/ along poles, ducts or through sleeve complete all as specified and directed Note: Earth work, sand cushioning and bricks will be measured and paid separately under relevant items.

Demolition of cement concrete un-reinforced in ground floors and paving not exc 15 cm thickness below or above ground level complete all as specified and as directed.

M&L for PCC blocks of cement concrete 1:2:4 type B-1 using 20mm graded crushed stone aggregate in surrounding of casing pipe of required size including embedding housing clamp including necessary form work and eartn work, top and side of block shall be finished with 5mm thick rendering with cement mortar 1:3 including white wash complete all as specified and as directed.

M&L for brick work with sub class B bricks of old size, straight or curved on plan exc 6 m mean radius, built in cement mortar 1:4 complete all as specified and directed.

M&L for rendering 15mm thick in CM 1:4 on fair faces and of brick work or concrete surface finishing the surface even and smooth without extra cement complete all as specified and directed.

M&L for preparing new plastered surface of wall and applying three coats of white wash complete all as specified and directed.

M&L for 75mm thick PCC 1:3:6 type C-1 using 20mm graded stone aggregate in foot path, hard standing etc finished the surface even & smooth without using extra cement and marking impression of expended metal while the concrete is green complete all as specified and directed.

M&L for hard core of broken bricks of gauge n.exc 63 mm deposited spread and leveled in layers n.exc 15 cm thick watered and rammed to a true surface complete all as specified and as directed.

M&L for 75mm thick PCC 1:2:4 type B-1 using 20mm graded stone aggregate for sanitary sealing etc finished the surface even & smooth without using extra cement complete all as specified and directed.

Supply only Strata chart and sample strata box with glass door/shutter for keeping strata samples collected, in PVC transparent Jars. Box shall have internal dimensions 1000mm x 600mm x 100mm with pigeon holes of dimensions 15cm x 20cm (horizontally & vertically) up to depth of box, made out of 20mm thick shisham plank with hinges, hasp and staples, including PVC transparent Jars. Strata chart of ground data showing different type of strata, size of strata chart (80 cm x 30 cm) (in duplicate) complete all as specified and directed.

S&F water pressure gauge complete all as specified and directed.

S&F rolled mild steel section of ISMB 200 and necessary fabrication to erect desired structure including two coat of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed.

PITAMBARI TRADERS

CENTRAL INDIA TUBEWELL CORPORATION

Rajkaran Tubewells