GE/BAS-72/22-23 AUGMENTATION OF WATER SUPPLY AT BASOLI AND JANGLOT UNDER GE BASOLI

Amount

M&L for Boring/ Drilling 'pilot bore' of suitable dia for lowering 250mm bore ERW pipe , by suitable method (by DTH-cum-rotary or reverse rig method or hammer method or telescopic method) to any depth (not exceeding 200m) below groung level in any type of strata/ soil/ rock with sand including disposal of materials obtained (soil, rock etc.) from boring to a distance not exceeding 50m with and including deploying required rig, machinary, T&P, equipments etc with and including collection of logical samples (drilling/cutting) and to maintain drill time logbook complete and drilling by reaming vertical bore upto 525 mm in steps by heavy duty direct rotary rig machine at approved site location any type of stata for 250 mm bore ERW casing pipe for following mentioned bellow including all connected work complete all as specified and directed. (a) Upto a depth of 80m from ground level.

(b) From depth exceeding 81m upto 160m or entire depth as required at site and as directed by Engineer-inCharge. Notes for Item No.1&2 :- 1. The cost of hiring and transportation of suitable truck mounted rig machine and other required equipments deemed included in quoted. 2. Neccessary fuel, lubricant and chemicals extra required for construction work shall be arrange by contractor and cost of these items shall be deemed to be included in quoted rates. 3. Depending upon availability of water bearing strata, drilling beyond 200m below ground level be carried out with prior written approval of GE. 4. In case the hard rock encountered during boring or water could not meet or desired yield of tubewell could not achieved as per CGWE report at boring point the contractor shall be carried out a new bore at another place as directed. The payment for digging of such failed bore shall be paid at 70% of quoted rates. The failed bore shall be abondaned and refilled after extrecting the T&P. Please note that no claim on this account shall be admissible.

Supply, assembling including jointing, lowering and fixing in position ERW plain steel (seamless) casing/ housing pipe of heavy duty class 'C' confirming to IS-4270 (2001) plain end pipe jointed and welded with coupler ring (welding shall be done through out circumference of the pipe and coupler ring both side) complete all as specified and directed of following size :- (a) Nominal bore of pipe 250mm having wall thickness not less than 7.1mm and outer dia 273.1mm.

(b) Nominal bore of pipe 200mm having wall thickness not less than 5.4mm and outer dia 219.1mm. Note for item No.3&4 :- Standard length of pipe shall be used (length of pipe should not be less than 3m or as approved by GE).

S&L of stainless steel cage type wire wound screen as per IS-8110-2000 OR Latest with socket to connect strainer to strainer duly welded with suitable grade electrode to lower the stainer into tube well bore 200 mm internal diameter (slot sze 0.75 mm) 6.30 mm thickness complete all as specified and directed.

S&F MS reducer socket of 250 x 200mm nominal bore of suitable length includind welding mild strip of size 40X 6mm (02 Nos for each joint) extended in 75mm on each side complete all as specified and directed.

S&F MS well Cap having minimum thickness 8mm with internal thread & locking arrangement suitable for housing pipe of 250mm nominal bore, complete all as specified and directed.

S&F MS holding clamps made out of 150x15 mm MS flat iron & length upto 1.25m, bent to shape as directed with and including 4 nos, 16mm dia bolts, nut, washers etc of suitable length for holding 250 mm nominal bore housing/ casing pipe complete all as specified and directed.

S&F centering guide made out of 50x6mm mild steel flat iron made to shape as required complete all as specified and directed.

M&L for packing with pea gravels of size 3 to 5 mm natural shape brought direct from river bank packing around casing pipe to entire depth upto ground level complete all as specified and directed.

M&L for Developing the tube/ bore well firstly by means of pumping unit using air compressor unit of adequate capacity not less than 250 PSI and then by over pumping untill sand free water is obtained & testing the yield for duration as under :- (a) With air compressor (first 24 hours).

(b) With air compressor (24 hours to 72 hours).

M&L for Over pumping with the help of suitable size of pump and accessries and stand by DG set in order to ensure continuos pumpinf for 24 hours and yeild test by "V" notch method/Orfice method complete all as specified and as directed. Note :- The cost of provision/ hiring and transportation of of all T&P required for testing and other equipments required are deemed to be included in quoted rate.

Supply sample box of 'strara sample' made out of 25mm thick teak wood planks of size 900 mm x 400 mm and 150 mm wide and size of sample bits 100 mm x 100 mm and front provided with 3mm thick glazed hinged shutterd 900 mm x 400 mm with hasp & staples to the entire satisfaction of GE duly filled with strata sample as found while drilling of tube well complete all specified and directed.

M&L for biological and potability testing of water sample carried out from NABL approved lab water testing to be done for organoleptic & physical parameter for general parameters concerning substance undesireable in excessive amount for parameters concerning toxic substance for pesticide residual limit and biological test of water smple as per IS-10500 (2012) complete all as specified and directed.

Supply, installation, commissioning & testing of submersible pump set suitable for 250/ 200mm nominal size of bore well (casing pipe size 250/ 200mm bore), water lubricated and cooled complete with stream line non return valve directly coupled pump set with and including required squirrel cage induction motor not less than 25HP suitable for operation on 415 (+) 7.5% voltage, 3 phase 50 hertz alternating current. The pump set shall be capable to deliver 450 LPM (ltr per minute) of water at a head of 150 mtr. The electric motor shall be water lubricated, vertical type and shall be directly coupled to the pump. Electric motor and pump shall be of same make complete all as specified and directed. Note :- Rate included for one set of submersible pump set and connected items as stand by.

Supply, fixing, jointing and testing of submersible flat cable, stranded copper conductor with PVC insulated and PVC seathed, 1100 Volts, 3 core 16 sqmm nominal area, ISI marked. The cable shall be fixed and lowered with column pipe using suitable tie rope of plastic/ nylon as per standard practice complete all as specified and directed.

Supply, jointing and lowering of column pipe, 100mm nominal bore, galvanized (Hot Dip) MS ERW, heavy pipe having wall thickness 4.80mm and 10mm thick flange duly welded to column pipe both end confirming to IS-1239-1 (2004) with rubber gasket, nut-bolts, spring washers etc complete all as specified and directed. Note :- Standard length of pipe shall be used (length of pipe should not be less than 3m or as approved by GE).

Supply, fixing and connecting water pressure guage 100mm dia, burden type with siphon tube connection, stainless steel needle, valve and welding of suitable size of socket in the delivery pipe for mounting of the pressure gauge complete all as specified and directed.

S&F of MS clamp for holding of column pipe of 100 mm nominal bore, made out of MS flat iron 120x12mm, 0.8m long with suitable number and size of nuts, bolts and washers to sustain the column pipe in position complete all specified and directed.

Supply, fixing/ connecting and testing of 100mm dia Non return valve/ reflux valve (ISI marked) of cast iron, double flanged, with by pass arrangement, class B high pressure PN-1.6 including bolts, nuts, washer and jointing materials etc complete all specified and directed.

Supply, fixing/ connecting and testing of 100mm dia sluice valve, cast iron, heavy duty, double flanged PN-1.6 confirmimg to IS-14846 (2000) (ISI marked) with stainless steel spindle and two nos of MS flange of 12mm thick, 4 holes with and including nuts and bolts packing materials etc complete all specified and directed.

Supply, fixing/ connecting and testing of 150 mm dia sluice valve, cast iron, heavy duty, double flanged PN-1.6 confirmimg to IS-14846 (2000) (ISI marked) with stainless steel spindle and two nos of MS flange of 12mm thick, 4 holes with and including nuts and bolts packing materials etc complete all specified and directed.

Supply laying , jointing and testing of Ductile Iron pipe, sockets and spigot end, class K - 9, of 150 mm dia (6") ISI marked, including special fittings suitable for push on jointing with inside cement mortor lining, external metallic zinc coating followed by finishing layer of black bitumen coating, pipe laid in trenches , joints and jointing materials as per OEM specifications and testing including taking out old unserviceable DI pipe complete all as specified and directed of Make : Electro steel/Jindal/Kesoram Note:- Joints, excavation and earth work and fittings shall be measured and paid separately.

Supply and fix in repair for DI fittings for spigot socketed /flanged pipe upto 150mm bore such as bends (any type, radius and angle) tapers any type (straight, bend, increasing, decreasing or double socket etc), tee, joint pieces, single branch 'Y' junction double branch cross (all sockets or socket and spigot) collars caps complete all as specified and directed. (Note :- Joints shall be measured and paid separately).

M&L chemical dosing system to inject solution upto 25 LPH comprising dosing pump coupled with three phase motor of capacity 0.5 HP, 1450 RPM assembly with agitator with SS sweep blade duly FRP coated in and icluding plastic mounted PE/FRP tank capacity 150 Ltr capacity complete with mounted on heavy duty MS fabricated frame duly antocorrosive paint all as specified.

M&L for valve chamber of size 900mm x 900mm x 900mm (internal dimension) with brick masonty valve chamber, 100mm thich PCC (1:4:8) type D2 as in foundation, 200mm thick brick wall built in CM (1:6), 50mm thich coping of PCC (1:3:6) type C1, 15mm thick plastering in CM (1:4) to all internal and exposed surface including necessary excavation and earth work in any type of soil, MS sheet cover 6mm thickness along with angle iron frame of size 40 x 40 x 5mm with locking arrangement with necessary fixing materials like hinges, nut bolts etc (valve chamber cover shall be opened in two valves) and painting to MS cover with two coats of synthetic enamel paint over one coat of red oxide primer etc complete all as specified and directed.

Excavation in trenches in any type of hard/dense soil n exc 1.5 mtr in width and n. exc 1.5 mtr in depth and getting out all as required for laying of cables,foundation filling of pole complete all as specified and as directed.

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

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

M & L for good quality dry sand cushioning to under ground electric cable laid over a layer of 8 cm thick and second layer of 15 cm thick after laying the cable complete all as specified in clase 19.75 of MES Schedule part-I (2009) complete all as specified and directed. Note : Sand shall be fined sand as specifed and punned thickness shall be measured.

M&L for Sub class ‘B’ bricks old size, laid dry flat over the cable abutting each other in length over UG cable equal to width of brick, complete all as specified and as directed.

Supply, laying, testing and connecting cable XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) 1100 volts grade with stranded aluminium conductor of size 3.5 core 70 Sqmm complete all as specified and directed.

M&L of LT Panel outdoor type made of CRCA Sheet 3.00 mm thick cubical type having bus bar chamber incorporated with aluminium bus bar 300 Amps 3 phase 4 way type properly insulated mounted on SMC/DMC insulators, in separated chamber and also having in an including accessories as appended below Painting the cubical panel with powder coating paint inside and out sidesteel surfaces and fixed on iron angle 40x40x5 mm frame made as per the base of cubical panel 40 cm above the ground level and 20 cm grouted in the floor base also incorporated with 02 Nos earth terminals well smoke ventilation provision accesories. (i) MCCB 200 Amps Four Pole 415 Voltswith breakijng capacity 35 KA Ics = 100% Icu -01 Nos (incommmer) (ii) Soft Starter for 3 Pahse Motor 25 /40 HP, 415 Volts -01 Nos (iii) Volt meter 0-500 Volts(Digital type) 3 way slector switch -01 Nos (iv) Ampere Meter (Digital type) 3 way slector switch- 01Nos (v) RYB Indicator lamp LED type - 01 (Set of 03 ) (vi) Shunt Capacitor 01 No (Set of three) suitable for to maintain the power factor. Note: The quoted rate is inclusive of necessary PCC work and bolts & nuts for grouting the panel boards.

Material & labour for Electrical earthing with GI plate electrode of size 60 cm x 60 cm x 6.3 mm thick burried directly in ground vertically earth pit not less than 2.5 mtr deep below ground level with the top edge of the earth plate at a depth not less 1.5 mtr below normal ground level connected to GI strip earth lead of size 32 x 6 mm by means of bolts, nuts, washers made of galvanised iron and connected main control board/switch gear/pannel boards all as specified and shown in electrical Plate No.3 of MES schedule (SSR) Part-I 2009 including necessary excavation and earth work in any type of soil, charcoal dust, salt and PCC 1:2:4 type B1 in chamber RCC 1:2:4 type B1 coverl slab with 6 mm dia mild steel bars at 100 mm centre to centre both ways and with 6 mm dia MS hook complete and testing resistance all as specified and as directed.

M/s. Public Tubewell Drillers Co