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| 1 | Ground water survey & resistivity test for bore well to locate and identify the suitable site (point) for potable and good yield water by any Government or Govt. approved agency, by geologist and report to be submittedand approved by GE before drilling the borewell complete all as directed. |
| 2 | M&L drilling of bore well by deploying required plant and machinery for boring 200 mm dia size pilot bore through any kind of soil / strata including hard stone / boulder by direct rotary method up to and including 60 Mtrs depth below ground level complete all as specified. Note :-03 (Three) trial hole to be done at site and rate for the same as deemed to be included in the quoted rate complete all as specified & directed. |
| 3 | All as per item No 2 above but for depth from 60 meters below ground level up to 90 meters depth complete all as specified and directed by Engr in charge. (Each bore 30 Mtr) |
| 4 | All as per item No 2 above but for depth from 90 meters below ground level up to 120 meters depth complete all as specified and directed by Engr in charge. by engr in charge.( Each bore 30 Mtr) |
| 5 | Development of trial bores by reaming 525mm dia for 60m depth from ground level complete all as specified and directed. (Each Bore 60 Mtr) |
| 6 | All as per item No 5 above but for depth from 60meters below ground level up to 90 meters depth complete all as specified and directed by Engr in charge. (Each bore 30 Mtr) |
| 7 | All as per item No 5 above but for depth from 90 meters below ground level up to 120 meters depth complete all as specified and directed by Engr in charge.(Each bore 30 Mtr) |
| 8 | M&L Developing the tube well with 300 PSI, 450 CFM capacity air compressor as required until clear water is obtained including transportation, errection and dismantling of air compressor complete all as specified and directed by Engr in charge. Time for devloping the tube well be not less then 08 Hrs . |
| 9 | Developing tube well with compressed air and after with 25% extra capacity pump by pumping muddy wateralong with required plants & equipments ,tools & sockets till sand free water of potable quality complete all as specified and directed by Engr in charge |
| 10 | Yield test for the borewell by applying V-Notch method with continuously pumping for 16 hrs to determine safepumping yield.incld draw down test, verticality test & aquifier performance test and chemical & biological test from a Govt testing laboratory complete all as specified and directed by Engr in charge. |
| 11 | Supply, assembling, lowering and fixing in vertical position in bore well, unplasticised PVC medium well casing (CM) pipe of 250 mm diameter (Internal), minimum wall thickness 12.5 mm conforming to IS : 12818-2010 including fittings fittings & accessories etc for all depths complete all as specified and directed by Engr in charge. by Engr in charge. |
| 12 | Supply, assembling, lowering and fixing in vertical position in bore well, unplasticised PVC medium well casing (CM) pipe of 150 mm diameter (Internal), minimum wall thickness 7.5 mm conforming to IS : 12818-2010 including fittings fittings & accessories etc for all depths complete all as specified and directed by Engr in charge. |
| 13 | Supplying, assembling and lowering 150 mm inner dia unplasticised PVC medium well screen (RMS) with ribs with minimum wall thickness under ribs as 7.5 mm confirming to IS : 12818-2010 including fittings & accessories etc for all depths complete all as specified and directed. |
| 14 | Supply and fixing well cap suitable for 250mm dia internal dia housing pipe, made out of 8mm thick steel plate duly welded with locking arrangement with holes for passing 10 Sqmm flat submersible cable complete all as specified and directed by Engr in charge. NOTE:-After completion of the work the cap will be used to keep the tube well closed until the pump set is installed. |
| 15 | Supply , lowering & jointing GI PIPE ‘ HEAVY CLASS’ column pipeas per IS: 4270/2001 as amended upto date duly ISI marked, 100 mm dia, 3 meter long heavy grade, 6.0 mm wall thickness, flage ended complete with nuts, bolts, washers & rubber gasket including groove for cable entry system and applied with two coats of black bituminous paint (food grade) on both inside and outside surfaces of pipe after preparartion of surfaces complete all as specified and directed by Engr in charge. |
| 16 | Supply and fix cast iron sluice valve, Class PN 1.6, long body type, with brass spindle, both ends flanged with holes, ISI Marked (IS 14864-2000), including carbon steel nuts, bolts & washers, rubber gaskets etc, with CI wheel, fixed to water mains, of size 100 mm bore complete all as specified and directed by Engr in charge. |
| 17 | Supplying and fixing cast iron heavy duty non return valve, PN 1.6 both ends flanged conforming to IS, suitable for 100mm bore pipe (horizontal type) including carbon steel nuts, bolts ande wahsers, rubber gaskets etc complete all as specified and as directed. |
| 18 | Supply and fixing pressure gauge in pipe line 100 mm dia, 0 to 10 Kg/Sqmm including all necessary fittings complete all as specified and as directed |
| 19 | Cutting of existing GI/Cast Iron pipe for insertion of new Tee of upto 150 mm bore including jointing materials complete all as specified and directed by Engr in charge. by Engr in charge.(NOTE : Cost of new Tee is deemedto be inclusivbe in the quoted rates). |
| 20 | Supply, laying, jointing and testingh of XLPE insulated armoured heavy duty electric cable with auminium conductor 1100 volts grade cross sectional area 50 Sqmm 3.5 Core laid in trenches/floor or fixed on wall/pole including suitable size of brass compression cabld gland, terminal lugs etc complete all as specified and directed by Engr in charge. |
| 21 | Excavation in trenches n exc 1.M wide and n exc 1.5M in depth for taking out/laying CI/GI pipes and getting out in soft/loose soil complete all as specified and directed by Engr in charge. by Engr in charge. |
| 22 | Removing excavated soils to a distance not exceeding 50 Mtrs and depositing where directed at a level n exc 1.5 M above the starting point complete all as specified and directed by Engr in charge. |
| 23 | Returning filling in soft/loose soil, including spreading levelling watering and well ramming in layers not exc 25 cm complete all as specified and directed by Engr in charge. |
| 24 | Material and labour for sand cushioning (dry) in trenches for protection of UG cable (below, above and around the UG cable laid in trenches) of 230mm spread thickness and consolidated (punned) upto 180mm thickness complete all as specified and directed by Engr in charge. by Engr in charge.(NOTE : Punned thickness shall be measured for payment) |
| 25 | Materials and labour for 32 mm bore galvanised steel tubing medium grade laid in trenches or floors/road/drain/fixed to wall, poles with suitable size clamps etc completed all as specified and directed. |
| 26 | Supplying lowering fixing commissioning and testing submersible pumping set in bore well, electrically driven, 415 Volts three phase AC 17.5 HP 11 KW having a discharge capacity of 750 litres per minute at a head of 54 metres, 10 stage delivery 100 mm dia complete all as specified and as directed |
| 27 | Supply & installing sample box for displaying samples of strata made out of teak wood plants 25mm thick board, duly French polished out side, size of sample box 1000mm x 1000mm, required nos of samples bins, provided with front open able glazed shutter, 25mm thick duly fitted with 2 Nos 75mm aluminum hinges and 75mm aluminum anodized hasp and staples for locking arrangement complete all as specified and directed by Engr in charge. by Engr in charge. |
| 28 | Supply and filling Pea gravel of size 3 to 6 mm for parking around the housing/assembly, slotted pipe of the bore well, complete all as specified and directed by Engr in charge. by Engr in charge. Note:- Pea gravel shall be paid as per stack measurement carried out on site. |
| 29 | Supply and fixing accessories for UPVC casing pipes 250mm to150mm such as UPVC reducer, socket, complete all as specified and directed by Engr in charge. by Engr in charge. Note:- The specifications of there items should comply with the requirements for the scope of work and shall be to the complete satisfaction of the Engineer-in-Charge. |
| 30 | Testing of raw and treated water for all parameters covering complete chemical and bacteriological aspect from RRL, Jorhat/DRL Tezpur or any Govt approved/recognized Lab as approved by the GE complete all as specified and directed by Engr in charge. by Engr in charge. |
| 31 | Electric logging in pilot bore for continuous process delineation of granular zones as also the quality of ground water including report interpretationcomplete all as specified and directed by Engr in charge. by Engr in charge.Note :-Electric logging shall be carried out by approved agency. |
| 32 | S & F PVC insulated and sheathed flat stranded copper conductor of 10 sqmm 3 core water proof submersible cable incl lug and fixed in submersible pump set complete all as directed by Engr in charge. |
| 33 | S&F Centralizing guide made out of 40x6mm MS flat iron and 16mm dia MS deformed bars suitable for 100 mm bore MS pipe complete all as specified and shown in IS 2800 (Part-1) 2009 complete all as specified and directed by Engr in charge. by Engr in charge.. |
| 34 | M&L earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6 mm buried directly in ground vertically to a depth not less than 2.25 mtr below ground level with top edge of earth plate at a depth not less than 1.5 mtr below normal ground level connected to galvanised steel earth lead Strip 32 X 6 mmby means ofbolts nuts check nuts and washers of galvanished steel and connected to main switch board or main control board as directed and including provision of concrete pit in PCC (1:3:6) type C1, pre cast RCC (1:2:4) type B1 cover slab 45 cm x 45 cm 5 5 cm reinforced with 8mm dia.TMT bars @ 150 mm centre to centre both ways, with one handle for lifting made out of 8mm dia MS bar provision of funnel wire mesh 20mm bore galvanised steel tubing (Medium Grade) for watering charcoal or coke and salt in alternate layers, 40mm bore galvanised steel tubing medium grade for protection of earth lead connection, necessary excavation and earth work in any type of soil and including necessary testing complete all as shown in Figure 15A of IS 3043:1987, complete all as specified and directed by Engr in charge. by Engr in charge. |
| 35 | Materials and labour for plain cement concrete (1:2:4) TYPE b1 (Using 20mm graded aggregate) as in coping, benching and similar items incuding necessary formwork etc complete all as specified and directed by Engr in charge. |
| 36 | Supply and fix mild steel framed works as joist, channels angle or tee sections, fixed independently without connecting plates conforming to FE 410-W (Gde E-250) quality A complete all as specified and directed by Engr in charge. by Engr in charge. |
| 37 | Material and labour for two coats of synthetic enamel paint over a coat of red oxide primer over new steel surfaces including preparation of surfaces complete all as specified and directed by Engr in charge. |
| 38 | Materials and labour for brick work with Sub Class \"B\" bricks straight or curved on plan exceeding 6M mean radius built in cement mortar (1:4)complete all as specified and directed by Engr in charge. |
| 39 | Supply and fix Rendering 10mm thick on fair faces of brick work or concrete surfacescomplete all as specified and directed. |
| 40 | M&L construction of brick masonry valve pit of size 1500 mmX 1500 mm X 900mm(internal dimensions of chamber)depth to be reckoned from the top ofPCC in foundation to top of MS cover with MS sheet cover 3mm thick including frame of angle iron 40 X 40 X 6 mm with locking arrangement and lifting handle including painting two coats of black synthetic enamel paint over a coat of red oxide primer etc including brick work in one brick thick wall in cement mortar 1:4, 15mm thick plastering in cement mortar 1:4 (internally on all brick wall and external upto 15cm below ground level) and necessary excavation and earth work in any type of soil, returning, filling in, disposal of surplus spoil to a distance not exceeding 50 mtr 15 cm thick PCC 1:4:8 type D-2 in PCCfoundation projected by 15cm all round from the outer face of brick wall PCC 1:2:4 type B-1 in coping complete all as specified |
| 41 | Supply and laying galvanised iron pipe of medium grade, 100mm dia, ISI marked with all tube fittings (such as bends, elbows, tees, short pieces, connectors, back-nuts, caps, plugs and unions etc) laying in trenches/floor/ducts and also cutting pipes, screwing, wash and for making forged bends on piping as required including wedding if necessary to connect with theexisting water supply system complete all as specified and directed by Engr in charge. by Engr in charge. (NOTE : Flanges in pipe lines shall be provided at an interval of not exceeding 30 meters in continuous lengths). |
| 42 | M&L for Bends. Tapers. Tee pieces (single & double branch) any type and angle/radius and straight connecting pieces but all ends flangedcomplete all as specified and directed by Engr in charge. by Engr in charge. |
| 43 | Supply, install testing and commissioning of outdoor type LT FPB, cubical & dooble door type with leg, totally enclosed dust and vermin proof, made out of 3.15 mm thick CRCA steel with powder coated finish, overall size 100 cm (Width) x 90 cm (height) x 45 cm (depth) and built upon suitable gland plate complete with frame work, having front and rear hinged doors, earthing strips at rear side, boottom datachable gland plate complete with suitable size zink plated and passivated nuts, bolts, spring and washers. The cabinat and all members shall be chemically treated with MSR solution for anticorrosive treatment and apply spray paint with two coats of powder coated paint over a coat of red oxide primer. The panel shall suitable for 415 volts, 50 Hz, 3 phase 4 wire system with 200 Amp rated electrolytic grade alluminium bus bar arrangement in different cololur code and necessary internal connection complete including necessary PCC (1:3:6) type C2 in foundation complete all as required at site and comprising the accessories as :-INCOMER(i) MCCB, 4 Pole, 415 Volts,100 Amps, breaking capacity 25 KA having thermal setting 100% and magnetic setting upto 70% - 01 No OUTGOINGi)Fully automatic submersible star delta pump starter with auto unit, 17.5 HP, 3 phase 415 volts, relay range (17-24) with short circuit protection- 01 No (MAKE : BCH Cat No CPSDPAMN or suitable model in L & T/ABB/HAVELLS)(ii) MCB SP 240 Volts, 25 Amps 10 KA\"C\" Curve - 02 Nos(iii) Single phasepreventer - 01 NoINDICATING DEVICES(i) Digital voltameter bof size 96mm x 96mm with accuracy class 1% 4 1/2 digit sutiable to read0-500 volts AC supply with built selector switch - 01 No(ii)Digital Ammeter of size 96x 96mm with accuracy class 1% - 4 1/2 digit suitable to read 0-100 Amps with built to selector switch & suitable CTs-01 Set(iii)LED inicating lamp with holder for main supply indicating RYB (set of three) - 01 Set(iv) Indication lamp for starter power ON/OFF - 02 Nos |
| 44 | Supply and layingBricks comman burnt clay building bricks Old size with sub class B Designation 75. complete all as specified & directed. |
