Tender For Special Repair To Pump Houses At Afs Under Ge (Af) Jorhat; 1.00 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 submitted and approved by GE before drilling the bore well complete all as specified & directed. 2.00 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 & directed.Note :- 01(one) trial hole to be done at site and rate for the same as deemed to be included in the quoted rates. 3.00 All as per item No 2.00 above but for depth from 60 meters below ground level up to 90 meters depth complete all as specified and directed . 4.00 All as per item No 2.00 above but for depth from 90 meters below ground level up to 120 meters depth complete all as specified and directed. 5.00 Development of trial bores by reaming 525mm dia for 60m depth from ground level complete all as specified and directed. 6.00 All as per item No 5.00 above but for depth from 60meters below ground level up to 90 meters depth complete all as specified and directed. 7.00 All as per item No 5.00 above but for depth from 90 meters below ground level up to 120 meters depth complete all as specified and directed. 8.00 M&L Developing the tube well with 300 PSI, 450 CFM capacity air compressor as required until clear water is obtained including transportation, erection and dismantling of air compressor complete all as specified and directed by Engr in charge. Time for developing the tube well be not less than 08 Hrs per bore well complete all as specified and directed.Note :- (i) Compressor, pump, pipe and other allied items will be arranged by contractor and no extra payment will made by the department. 9.00 Developing tube well with compressed air and after with 25% extra capacity pump by pumping muddy water along with required plants & equipments, tools & sockets till sand free water of potable quality complete all as specified and directed. 10.00 Yield test for the bore well by applying V-Notch method with continuously pumping for 16 hrs to determine safe pumping yield including draw down test, verticality test & aquifer performance test and chemical & biological test from a Govt testing laboratory complete all as specified and directed. 11.00 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 & accessories etc for all depths complete all as specified and directed. 12.00 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 & accessories etc for all depths complete all as specified and directed. 13.00 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. 14.00 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.NOTE:- After completion of the work the cap will be used to keep the tube well closed until the pump set is installed. 15.00 Supply, lowering & jointing GI PIPE ‘HEAVY CLASS’ column pipe as per IS: 4270/2001 as amended upto date duly ISI marked, 100 mm dia, 3 meter long heavy grade, 6.0 mm wall thickness, flange 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 preparation of surfaces complete all as specified and directed. 16.00 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. 17.00 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 and washers, rubber gaskets etc complete all as specified and directed. 18.00 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 directed. 19.00 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.NOTE : Cost of new Tee is included in the quoted rates. 20.00 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. 21.00 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. 22.00 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. 23.00 Supplying, lowering, fixing, commissioning and testing submersible pumping set in bore well, electrically driven, 415 volts three phase, AC, 12.5 HP capacity, with other connected accessories and necessary electrical connections complete all as specified and directed. 24.00 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.Note:- Pea gravel shall be paid as per stack measurement carried out on site. 25.00 Supply and fixing accessories for UPVC casing pipes 250mm to150mm such as UPVC reducer, socket, complete all as specified and directed.Note:- The specifications of these items should comply with the requirements for the scope of work and shall be to the complete satisfaction of the Engineer-in-Charge. 26.00 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. 27.00 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. 28.00 Materials and labour for plain cement concrete (1:2:4) type B1 (Using 20mm graded stone aggregate) as in coping, benching and similar items including necessary formwork etc complete all as specified and directed. 29.00 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. 30.00 Supply and fix Rendering 10 mm thick (1:4) on fair faces of brick work or concrete surfaces complete all as specified and directed. 31.00 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 the existing water supply system complete all as specified and directed.NOTE : Flanges in pipe lines shall be provided at an interval of not exceeding 30 meters in continuous lengths. 32.00 Supply and fix Rendering 10mm thick (1:3) on fair faces of brick work or concrete surfaces complete all as specified and directed. 33.00 Labour only for lifting/lowering of U/S 12.5 to 15 HP capacity submersible pump set from existing bore well after disconnecting the electric supply and taking out all column pipes flanged/socket type 80 mm/size 18.15 RM long and deposit to E/M store. etc. complete all as directed. 34.00 Dismantling of old Iron removal plant and Supply ,erection, installation, commissioning and testing of multigrade Iron Removal Plant complete with Pressure Filter, catelytic media, Air compressor, back washing facility including RCC foundation of capacity 10,000 gallon/hrs at Pump House No.06 and 08 of following specifications:-Item contd. from item nos. 35 to 39 35.00 (a) Oxidation Chamber of size 1000 mm dia,1500 mm straight height, total height 2260mm manufactured with mild steel work, shell thickness 6mm, dished ends thickness 8 mm, suitable for working pressure 5 Kg/Cm2, Frontal Valve Qty -5 No/ 100mm, Aire release valve - 1 No, Pressure gauge (Glycerin Filled) - 02 Nos, Water sampling point - 02 Nos with sampling Valve having media MnO2 0.47 to 0.50m³ (approx), Pebble 40/25- 0.78 to 0.80 m³ (approx), Pebbles 20/12- 0.78 to 0.80 m³ (approx), Crushed Gravels 6/2-0.78 to 0.80 m³ (approx), Corse silex -0.78 to 0.80 m³ (approx), Ffine Silex - 0.78 to 0.80 m³ (approx), Filtering Sand 16/32--0.23 to 0.3m³ (approx). Perduly painted internally with anti corrosive black bituminous paint and externally with two coats of synthetic enamel paint over one coat of red oxide primer ,avail with backwash frequency-when DP more than 0.6Kg/cm² -02 No 36.00 (b) Duel Media Filter with Frontal piping and Valve, Inlet & Out let Pressure gauge, Digital flow meter of shell dimension 2135 mm dia, 2100 mm straight height and 3250 mm total height, MOC of shell mild steel, shell thickness 6 mm, bed thickness 10mm and dished ends thickness 12 mm, pipe line connection with MS pipe 100 mm dia, control/Frontal valves type 05 Nos butterfly of suitable size of comprising of pressure gauges (Glycerin Filled) of suitable capacity, two no sampling cock, air vent line with air relees valves, bed plate with strainers unit filled with Anthracite-1 to 1.2 m³, Pebbles 40/25-0.34 to 0.36m³, Pebbles 20/12-0.34 to 0.36 m³,crushed Gravels 6/2-0.34 to 0.36 m³, Corse silex-0.34 to 0.36 m³. Fine Silex-0.34 to 0.36 m³, Filtering Sand 16/32 16/32-1.72 to 1.80 m³ approx qty , having digital water flow meter, unit should have backwashing & rinsing facility etc complete unit should be capable for working pressure 5.0 kg/Cm2 duly painted internally with anti corrosive black bituminous paint and externally with two coats of synthetic enamel paint over one coat of red oxide primer-,avail with backwash frequency-when DP more than 0.6Kg/cm² -02 No. 37.00 (c) Iron removal filter with frontal piping & valves, inlet & outlet pressure gauge, digital flow meter of shell dimension 1830 mm dia, 2100 mm straight height and 3150 mm total height ,MOC of shell mild steel, shell thickness 6 mm, dished ends thickness 10mm and bed plate (with strainer) thickness 10 mm, Air release valve -01 no, water sampling point-02 nos with sampling valve pipe line connection with MS pipe 100 mm dia medium grade, control valves type butterfly of suitable size of comprising of pressure gauges (Glycerin Filled) of suitable capacity-02 nos, air vent line with air releas valves, Anthracite-1 to 1.2 m³, Pebbles 40/25-0.34 to 0.36m³, Pebbles 20/12-0.34 to 0.36 m³,crushed Gravels 6/2-0.34 to 0.36 m³, Corse silex-0.34 to 0.36 m³. Fine Silex-0.34 to 0.36 m³, Ffiltering Sand 16/32 16/32-1.72 to 1.80 m³ approx qty bed plate with strainers unit filled with filte, having digital water flow meter, unit should have backwashing & rinsing facility etc complete unit should be capable for working pressure 5.0 kg/Cm2 duly painted internally with anti corrosive black bituminous paint and externally with two coats of synthetic enamel paint over one coat of red oxide primer ,avail with backwash frequency-when DP more than 0.6Kg/cm² -02 No. 38.00 (d) Alum Dozer including all brush fitting of capacity 30.0 ltrs of size 320.0 mm dia X 394.0 mm depth, MOC CI, including all fitting of brass complete all as specified by OEM-02 No(e) Soda dozing system of capacity 30 ltr (CI- material) with soda dosing of capacity 100 ltr (MOC-HDPE/LLDP) electronic metering pump of capacity 0 to 10 LPH including all fittings as specified by OEM - 02 No(f) Air compressor of capacity 22 CFM, working pressure 10 to 12 Kg/CM2 motor of capacity three phase 5 HP 50 hz with starter - 02 No 39.00 NOTE:-(a) Rate quoted for Job shall be inclusive of cost for necessary civil work, PCC foundation, proper drainage work, demolition of old Iron removal complete plant and as required and directed at site by Engr-in-Charge.(b) Contractor will deposit old Iron Removal Plant complete with Pressure Filter at MES store yard.(c) Quoted rate includes supply of Butter fly/Sluice/gate valve, Pressure gauge and filter pipe required for installation of Iron removal cum pressure filter plant. 40.00 S&F Centrifugal pump electrically driven horizontal end Suction, centrifugal type confirming to IS- 12469 :1988 with CI Casing , bronze impeller and Stainless steel shaft mounted on heavy duty bearings Suitable for continuous operation with range of operation 0 % to 150 % of rated capacity for 20-25 HP 440 V, 3 Phase. 50 Hz 70m Head including base of iron channel and civil work complete all as specified and directed. 41.00 Supply, fixing, installing, commissioning and testing boosting monoblock pump set 5 HP ,self priming type, 80 mm delivery and suction, single phase, 240 volt, 50 Hz having discharge 300 LPM fixed on PCC foundation including necessary cable connection and taking down old u/s compete all as specified and as directed.
