Tender For Provision Of Defi Single Jcos Accommodation At Dappar.; 1 Total amount of Sch A Sec-I (BUILDING WORKS ) Lump sum price worked out by the contractor for BUILDING WORKS as listed in schedule A Part-I 2 Total amount of Sch A Sec-II (SITE CLEARANCE, SITE DEVELOPEMENT & MISC. EARTH WORKS) Lump sum price worked out by the contractor for SITE CLEARANCE & EARTH WORKS as listed in schedule A Part-II 3 Total amount of Sch A Sec-III (INTERNAL WATER SUPPLY WORKS) Lump sum price worked out by the contractor for INTERNAL WATER SUPPLY WORKS as listed in schedule A Part-III 4 Total amount of Sch A Sec-IV (INTERNAL ELECTRIFICATION WORKS) Lump sum price worked out by the contractor for INTERNAL ELECTRIFICATION WORKS as listed in schedule A Part-IV 5 Total amount of Sch A Sec-V (SEWAGE DISPOSALWORKS ) Lump sum price worked out by the contractor for SEWAGE DISPOSALWORKS as listed in schedule A Part-V 6 Total amount of Sch A Sec-VI (ROAD, HARDSTANDING AND CULVERTWORKS ) Lump sum price worked out by the contractor for ROAD, HARDSTANDING AND CULVERTWORKS as listed in schedule A Part-VI 7 Total amount of Sch A Sec-VII ( AREA DRAINAGE WORKS ) Lump sum price worked out by the contractor for AREA DRAINAGE WORKS as listed in schedule A Part-VII 8 Total amount of Sch A Sec-VIII (RAIN WATER HARVESTING WORKS) Lump sum price worked out by the contractor for RAIN WATER HARVESTING WORKS as listed in schedule A Part-VIII 9 Total amount of Sch A Sec-IX (EXTERNAL WATER SUPPLY WORKS) Lump sum price worked out by the contractor for EXTERNAL WATER SUPPLY WORKS as listed in schedule A Part-IX 10 Total amount of Sch A Sec-X (HOT WATER SUPPLY WORKS) Lump sum price worked out by the contractor for HOT WATER SUPPLY WORKS as listed in schedule A Part-X 11 Total amount of Sch A Sec-XI (EXTERNAL ELECTRIC SUPPLY WORKS & LIGHTNING PROTECTION) Lump sum price worked out by the contractor for EXTERNAL ELECTRIC SUPPLY WORKS & LIGHTNING PROTECTION as listed in schedule A Part-XI 12 Total amount of Sch A Sec-XII (LIFTS WORKS) Lump sum price worked out by the contractor for LIFT WORKS as listed in schedule A Part-XII 13 Schedule ASection-XIII (Misc Items of Works) Note :This schedule is not pre-priced by MES and the pre-priced rate indicated as Rs 0.00 under Col. 6 siginifies this fact only. 14 LIGHTNING PROTECTION Material & Labour for earthing complete with galvanized steel earth plate 60 cm X 60 cm X 6 mm thick buried vertically in ground to depth not less than 2.25 metres deep below ground level, with top edge of earth plate not less than 1.5 m below ground level, connected to galvanized iron earth strip of size 32mmx6mm by means of bolts, nuts, check nuts and washers of galvanized iron or steel including excavation and earth work in any type of soil ,and removing surplus soil to a distance not exceeding 50 metres ,GI pipe light grade 40mm bore for protection of earth wire upto 7.5 metre from earth plate electrode and connected to continous earth lead on pole/test point, supplying and laying charcoal dust common salt in alternate layers (each layer shall be 15 cm thick) , GIfunnel and wire mesh, 20mm dia GI pipe light grade for watering including necessary excavation and earth work, PCC 1:2:4type -B1 and 40 mm thick RCC M-25 (Design Mix) coverwith handle reinforced with 8 mm dia mild steel reinforcement at 15 cm c/c spacing in both ways with handle of 8 mm dia bar for fitting , pit cover, CI frame,all as shown and specified in electrical plate No 3 of SSR Part I complete all as specified and directed. 15 NOTES APPLICABLE TO SRL ITEM NO. 14 ABOVE : (i) The cost of earth lead /stripof GI/copper and GI pipe for protection of earth lead/strip upto 7.5m is included in the quoted rate.(ii) The earth chamber shall be constructed 50 cm away from the edge of earth pit and cost of the cost of excavation & earth workis deemed to be included in the quoted rate. (iii) The new earthing so constructed must have resistance value below 2 ohms. If aforesaid resistance value is not achieved, contractor shall make proper addition/alteration to the newly constructed earthing at his own cost. 16 SUMMER APPLIANCESSupply, installation,testing and commissioning of self standing Water cooler fully stainless steel,puff insulated body, electric driven single phase 230 Volts, 50 Hz havingstorage capacity of 80 Ltrsand nominal cooling capacity of 40 Ltrs per hour with reciprocating compressor, eco friendley R-134A refrigernt, externally mounted thermostat for easy regulating temperature with extra large stainless steel water tray for fast drainage of water complete all as specified and as directed. 17 Supply, installation,testing and commissioning voltage stablizer for automatic operation, single phase naturally air cooled indoor type and designed for input varriation between 170 V to 290 V with output voltage stablized at 230 V with accuracy of + 2.5% and of capacity 2.0 KVA complete all as specified and as directed. 18 Supply, installation,testing and commissioning Desert Air cooler, electric drivensingle phase having having nominal air flow capacity of 4000 Cum per hour factory made out of MS sheet powder coated, electric driven capacity 170 watt, 230V (single phase ), having approx storage capacity of 60 Ltrs with MS fabricated standmade out of 40 x 40 x 5mm angle frame duly grouted in wall, painted with 2 coats of synethetic enamel paint over a coat of red oxide complete all as specified and as directed. 19 HOT WATER SUPPLYWater heaters(Geyser) vertical storage type,electric driven,closed vented type 230 Volts (BEE 5 star rated marked and equivalent latest EER/SEER rating) of capacity 25 Ltrs,2000 Watt ,50HZ with overheat auto cut-off thermostat provision, energy saving high quality PUF insulation, adjustable knob for temperature settings between 25 degree celcius to 75 degree celcius to get the desired temperature. Inner tank made of extra thick superior cold rolled sreel, earth leakage circuit breaker (ECLB) including 2 Nos PVC connections of size 15mm dia and 900 mm long, grouting nuts, bolts, washers, making electric connection, complete all as specified and as directed. 20 LIFTS Design supply, install testing & commissioningpassengers lift, speed 1.5 metre/sec, lift withsingle speed motor 415 volts, 3 phase, AC 50 Hz supply conforming to IS 14665, suitable to serve G + 03 upper floors with ACVariable Voltage &Variable Frequencydrive(VVVF drive) completewith all standardaccessories, simplex automatic & manual dual controlledoperation with/without attendant, centre openingdoors with door drive(electric motor driven mechanism), slidingstainless steel doors, automatic rescue device(ARD) system, 3D infra red sensor in full height ofdoor & built in announcing system without hand set (04 Nos, one each in car, Machine room & near Ground floorlanding door) completeall as specified and directed. 21 Material & Labour for earthing complete with copper earth plate 60 cm X 60 cm X 3.15 mm thick electrode buried vertically in ground to depth not less than 2.25 metres deep below ground level, with top edge of earth plate not less than 1.5 m below ground level, connected to copper strip of size 20mmx3 mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel including excavation and earth work in any type of soil ,and removing surplus soil to a distance not exceeding 50 metres ,GI pipe light grade 40mm bore for protection of earth wire upto 7.5 metre from earth plate electrode and connected to continous earth lead on pole/test point, supplying and laying charcoal dust common salt in alternate layers (each layer shall be 15 cm thick) , GIfunnel and wire mesh, 20mm dia GI pipe light grade for watering including necessary excavation and earth work, PCC 1:2:4type -B1 and 40 mm thick RCC M-25 (Design Mix) coverwith handle reinforced with 8 mm dia mild steel reinforcement at 15 cm c/c spacing in both ways with handle of 8 mm dia bar for fitting , pit cover, CI frame,all as shown and specified in electrical plate No 3 of SSR Part I complete all as specified and directed. 22 NOTES APPLICABLE TO SRL ITEM NO. 20 ABOVE : (i) The cost of earth strip GI / copper and GI pipe for protection of earth lead/strip upto 7.5m is included in the quoted rate.(ii) The earth chamber shall be constructed 50 cm away from the edge of earth pit and cost of the cost of excavation & earth workis deemed to be included in the quoted rate. (iii) The new earthing so constructed must have resistance value below 2 ohms. If aforesaid resistance value is not achieved, contractor shall make proper addition/alteration to the newly constructed earthing at his own cost. 23 DG SETSupply & installation of silent CPCB approved 30 KVA TPDiesel Generating Set having diesel engine Liquid cooled, Electric start, four stroke, cold starting, TCI Aspirated, compression ignition, totally enclosed diesel engine with electronic governor , direct coupled with 30 KVA Three Phase alternator at 1500 RPM, 0.8 lagging power factor, providing Three Phase 415Volts suitable for 50 Hz, H class insulated winding, Close-direct-coupled, Self-excited and self-regulated type, screen protected, mounted on rigid MS sheet channel base-frame. The alternator shall confirm to IS: 13364, IS: 4722, BS5000, IEC: 34 and suitable for tropical condition. having fitted inside Canopy, fabricated out of 1.6 mm CRCA Sheet, cubical type, totally enclosed, Powder Coated, Control Panel and all accessories in- housed in a acoustic enclosure – sound proof canopy. (A). Alternator :-Standard design alternator rated at 160KVA net output at site after considering derating as per site conditions at 0.8 (lag) power factor AC,3 - phase 4 - wire 415 volts 50 Hz, 1500 RPM, self exicited self regulated screen protected drip proof IP 23 enclosure brushless design with widing in pole faces, insulating class H and voltage regulation of+ 1% at rated voltage from no load to full load. The alternator shall be confirming to BS 2613/5000 and shall be inposition to generate supply with frequecy regulation with in + 1% tolerace. The alternator will be suitable for tropical climate and shall generally confirm to BS - 2613/5000/ IS - 4722. (i) Insualation class - H (ii) Temparature rise Class - H (iii) Excitation : Self Excited 24 DG SET (Contd....)(iv) Regulation performance: The voltage is kept constant with + 1%, manual voltage adjustment within + 5%(v) Frequency regulation + 1% (B) Diesel Engine: - Adquate capacity of Diesel engine as accepted by the accepting officer based on manufacturers technical details water cooled to drive independently above alternator and after considering derating as per site conditons after generating and reducing power consumed by accessories directly coupled through flexible coupling multi cylinder multi stroke direct injection,cold starting 1500 RPM, as per relevant ISI/BS - 5514 with an overload capacity of 10% for half an hour in 12 hours continuous running complete with standard accessories all as specified and required for safe handling and operation salient features of accessories shall be as under:-(i) Fly wheel with housing (ii) Cooling system :- Moulded radiator with fan & belts.(iii) Cooling Water pump : - Centrifugal type belt driven (iv) Exhaust System :- Exhaust System complete with exhaust piping of MS light grade 150mm dia upto 1 meter away from the enclosure, covered with asbestos rope and aluminium foil complete within the enclosure for safe exhaust without transforming vibration to the wall of the enclosure with Exhaust gas turbo charger type, Exhaust manifold Silencer : Residual type Bellows(v) Fuel System :- Fuel injection system with fuel injectors, fuel injection solenoid switch controlled by electronic governer for 1% speed /frequecy regulation, Fuel filters, Fuel hoses. (vi) Lub oil System :-Lubricating oil filter, Lubricating oil pump (vii) Air Intake System :- Air intake Manifold,Air cleanler dry type 25 DG SET (Contd....)(viii) Governor :- Electronic Governor(ix) Starting System :- Electric Self starter with maintenance free battery including battery charging alternator.(C) Batteries :- Batteries of maintenance free of capacity as recommended by the manufacturer complete with copper conductor multi-stranded leads of suitable length fromself starter to the battery terminals complete with initial charge and initial fill of electrolyte all as specified of Make as per OEM.(D) Starter gear ring:- Start and stop push button, Ignition key / Switch, Handling and operation : Salient features of accessories shall be as under.Radiator with blower fan, Corrosion inhibitor coolant, Paper element filters for fuel, lub oil and by pass. Electronic governor controlled direct fuel injection system, Fly wheel housing and fly wheel.(E) Generator Monitoring Control Panel : - Comprising of all standard items as mentioned under this schedule or as per standardpractice ignition key switch and start / stop arrangement, indications for Engine parameters, hour run meter, RPM meter, Engine oil pressure indicator, water/coolant temperature indicator, Battery volt display including suitable size MCCBs and multifunctional meter.(i) Safety Controls : - Engine low lube oil pressure high water temparature and over speeding of engine. (ii) Coupling arrngement : - Flexiable coupling, fly wheel to suit flexiable coupling. (iii) Accessories :- AVM Pads built or separtely mounted to manufactrer base frames. 26 DG SET (Contd....)(iv) Base Frame : - Made out of ISMC 250 of sturdy design made of MS channel with necessary reinforcement and predetermined holes. (v) MS pipe line to and from the fuel tank to the DG Set.(F). Civil Works :-All civil works including PCC plat form as per manufactures design also 30 cm above the ground. The depth of the foundation and PCC as recommended by the manufacturer. (G) Rubber Mattingof LV grade 19mm thick of suitable size chequred type ISI marked to be laid in front of control panel should be provided.Note:- The contractor shall arrange for artificial load for testing for final testing of DG Set at site and the cost is deemed to be including in above offer.(H) Accoustic Enclosure:- Manufactured by OEM suitable for 30 KVA DG Set.(i) NAL approved as per CPCB (ii) It Should be as per latest rules and regulations of Ministry of Environment and Forest and Pollution control board. (iii) The generating setbattaries and control panel should be inside the enclosure. (iv) Fuel tank should be out side the enclosure in the sub station building.(v) The accoustic should be composite in construction and fully assembled integral unit. (vi) The battaries should be placed inside the enclosure beside the DG Set on a suitable inlsulatedplat form.(vii) The DG Set should be provided with external Emergency stop push button. 27 DG SET (Contd....)(viii) The enclosure should be suitably illuminated by suitable capacity of LEDfittings. (ix) The noise level should be 75 db at 1m under free field conditions. (x) The accoustic enclosure parts shall be of powder coated after pre treatment process. The powder coating shade should be Genset Green. The base frame should be painted with epoxy based black shade.(xi) Fuel tank as per manufacturer recommendation with inlet and outlet connections and fuel level indicator.(xii)Base frame made out of suitable MS channel duly reinforced and provided with adequate numbers of anti-vibration pads to ensure minimum vibration as recommended by manufacturer.NOTE : -(i) TheGenerator set prime mover shall produce sufficient BHP at 0.8 PF with 10% overloading.(ii) Rate quoted shall be deemed to be inclusive of cable and terminations form Generator to the AMF Panel, with necessary holes to wall including making good to distrbed surfaces so as to match with the existing finishes all as specified and directed.(iii) The quoted rate shall be deemed to be inclusive of first filling of lubricant oil. (iv) The quoted rate shall be deemed to be inclusive of 12 hours test run at site including of half an hour on 10% overhead in presence of representative detailed by Accepting Officer; including FOL, all arrangements are to be made by the contractor for tests.Note : The consolidated rate for Srl No. 8.00, 8.10 ,8.20, 8.30 & 8.40 shall be quoted against Srl No. 8.00 of BOQ. 28 Material & Labour for earthing complete with galvanized steel earth plate 60 cm X 60 cm X 6 mm thick buried vertically in ground to depth not less than 2.25 metres deep below ground level, with top edge of earth plate not less than 1.5 m below ground level, connected to galvanized iron earth strip of size 32mmx6mm by means of bolts, nuts, check nuts and washers of galvanized iron or steel including excavation and earth work in any type of soil ,and removing surplus soil to a distance not exceeding 50 metres ,GI pipe light grade 40mm bore for protection of earth wire upto 7.5 metre from earth plate electrode and connected to continous earth lead on pole/test point, supplying and laying charcoal dust common salt in alternate layers (each layer shall be 15 cm thick) , GIfunnel and wire mesh, 20mm dia GI pipe light grade for watering including necessary excavation and earth work, PCC 1:2:4type -B1 and 40 mm thick RCC M-25 (Design Mix) coverwith handle reinforced with 8 mm dia mild steel reinforcement at 15 cm c/c spacing in both ways with handle of 8 mm dia bar for fitting , pit cover, CI frame,all as shown and specified in electrical plate No 3 of SSR Part I complete all as specified and directed. 29 NOTES APPLICABLE TO SRL ITEM NO. 23 ABOVE : (i) The cost of earth lead /stripof GI/copper and GI pipe for protection of earth lead/strip upto 7.5m is included in the quoted rate.(ii) The earth chamber shall be constructed 50 cm away from the edge of earth pit and cost of the cost of excavation & earth workis deemed to be included in the quoted rate. (iii) The new earthing so constructed must have resistance value below 2 ohms. If aforesaid resistance value is not achieved, contractor shall make proper addition/alteration to the newly constructed earthing at his own cost. 30 Galvanised iron strip 32 x 6mm buried in ground, complete all as specified and directed 31 EXTERNAL WATER SUPPLYCuttingexisting CI/DI pipe of 100 /150 mm dia and reducing to required length in position for inserting of new tees branches, collarsbends etc for 150 X 80 X 150 mm sizefor taking branching connection complete all as specified and as directed.Note : Cost of tee with jointing material shall also be including in quoted rates. 32 Construction of brick masonary valve pit of size 900 mm x 900mm x 900 mm (Internal size) thickness of walls shall be 23cm in brick work in cement mortar 1:6 internally plastered in cement mortar (1:6) and externally plastered in cement mortar (1:4) over 15cm thick PCC 1:4:8 type D-2 having 15cm offset around, including 4 cm thick coping in PCC 1:2:4 type B-1 on the top of the brick wall and 3mm thick mild steel sheet cover and angle iron frame of size 40 mm x 40mm x 6mm including provn of suitable hold fasts to hold the frame, locking arrangement and lifting handle, duly painted with two coats of synthetic enamel paint, over a coat of red oxide primer, complete all as specified and as directed. 33 EXTERNAL ELECTRIC SUPPLYSupply/Laying / fixing, jointing, testing and commissioning, LT under ground cable 1100 volts grade XLPE insulated & PVC sheathed cable heavy duty armoured, with multistranded aluminium conductor laid in trenches/ ducts/ pipes/fixed on walls/poles complete all as specified and directed of following sizes:-. 34 3.5 core 120 sqmm 35 3.5 core 35 sqmm 36 Sand Cushioning (dry river sand) to underground cable for cable protection provided with layers 8cm deep before laying and 15 cm after laying the cable complete all as specified and directed . 37 Supply and fixing LED Solar street light fitting20 Watt includinggalvanized steel pole in built, lithium ion battery, solar panel, charge controllerwith dusk down sensor complete all as specified and directed . 38 Supply and fix cable route indicator made up ofRCC M-20 grade of dimension450 X300 x 100 mm with suitable foundation including embossing of letters like LT cable with paint of suitable colour , proper finishing and smoothing of surface complete all as specified and directed . 39 Supply install test and commission LT Panel board, TPN 415 Volts, 50 Hz, , Outdoor cubical type floor mountedfactory made double doordust and vermin prooffabricatedout of CRCA sheet not less than 3.15mm thickfixed on angle ironframemade out of 60x60x6 mm with cable chamberfor individual feeders for incommingand outgoing connections,including suitable size cable gland,one set of indicator lampRYB with switch and fuse, multifunction intelligent panel meter etc and with the followings. (Main panel) 40 INCOMING:-(a)MCCB 4P, 100Amps, 16 KA, adjustable type thermal release - 1 Nos (Incoming)(b) Suitable size of TPN Alumium bus bar with colour coading- 1 SetOUTGOINGS:-(a) MCCB 3 POLE, 415V. Adjustable type thermal release,25-100 Amps, 16 KA - 3No (For Lift , Building load and spare )(b)Microprocessor based Multifunctional digital meter with CT to display parameters like voltage,current,frequency,power factor etc. for three phase , consistingtamper proof system - 1 nos.(c) Indicator lamp -03 Nos 41 Material & Labour for earthing complete with galvanized steel earth plate 60 cm X 60 cm X 6 mm thick buried vertically in ground to depth not less than 2.25 metres deep below ground level, with top edge of earth plate not less than 1.5 m below ground level, connected to galvanized iron earth strip of size 25 mmx 4mm by means of bolts, nuts, check nuts and washers of galvanized iron or steel including excavation and earth work in any type of soil ,and removing surplus soil to a distance not exceeding 50 metres ,GI pipe light grade 40mm bore for protection of earth wire upto 7.5 metre from earth plate electrode and connected to continous earth lead on pole/test point, supplying and laying charcoal dust common salt in alternate layers (each layer shall be 15 cm thick) , GIfunnel and wire mesh, 20mm dia GI pipe light grade for watering including necessary excavation and earth work, PCC 1:2:4type -B1 and 40 mm thick RCC M-25 (Design Mix) coverwith handle reinforced with 8 mm dia mild steel reinforcement at 15 cm c/c spacing in both ways with handle of 8 mm dia bar for fitting , pit cover, CI frame,all as shown and specified in electrical plate No 3 of SSR Part I complete all as specified and directed . 42 NOTES APPLICABLE TO SRL ITEM NO. 32 ABOVE : (i) The cost of earth lead /stripof GI/copper and GI pipe for protection of earth lead/strip upto 7.5m is included in the quoted rate.(ii) The earth chamber shall be constructed 50 cm away from the edge of earth pit and cost of the cost of excavation & earth workis deemed to be included in the quoted rate. (iii) The new earthing so constructed must have resistance value below 2 ohms. If aforesaid resistance value is not achieved, contractor shall make proper addition/alteration to the newly constructed earthing at his own cost. 43 SEWAGE DISPOSALConstruction of conventional typeseptic tank for 20 users to carry sewage and sullage water, (excavation in any type of soil) PCC 1:4:8 below foundation vent shaft, connection etc complete in all respect as specified and directed. 44 Soakage wells excavation of size 2.4 metre X 3 metre depth , in any type of soil, foundation in PCC 1:3:6, walls of honey combed masonry with top ring of M25 concrete including intercepting chamber and screen chamber made ofBrick masonary in CM, RCC cover slab in M25/SFRC cover, interconnecting pipes of RCC/DWC complete filled with brick bats of size complete all as specified and directed . 45 RAIN WATER HARVESTINGLoose filling with aggregates of broken stone or boulders of gauge 20 to 50 mm in soakage pits, soakage wellcomplete all as specified and directed . 46 All as per item no. 35 above here-in-before, but gauge 5 to 10 mm. 47 Drilling pilot bore hole of 150mm dia by rotary drilling method (Direct/ reverse) through rig machine for injection well in any kind of soil strate or rock including disposal of surplus soil/rock to a distace not exceeding 50 metre complete all as specified including deploying required rig machinery.T&P equipment etc complete inclduing transporting of all materials like rig machine, tool and plants, collection of logsamples (drilling/ cutting) and to maintain drill time log book all as specified and directed 48 Reaming of 150mm pilot bore hole to 250mm bore with direct circulation rig machine/ reverse rotary circulation method in any kind of strata of soil/ rock from ground level to 100 Metre depth below ground level all as specified and directed .Notes for item No 37 to 38.(a) The following activities are to be carried out and reports as mentioned to be submitted by the contractor which is deemed included in the rates quoted. (i)Taking the sample of strate at every 3.0 interval and every change in strata amd preparation of litho logs based on these samples, (Cost of provision of sample strate box size 1200 x 750X100mm of specification as directed by AGE(I) shall be deemed included in the quoted rates.(ii)Preparation of drill time log and sumbitting to department .(b)The change upper or lower limit of boring from ground level with a particular diameter of drill not accountedto any deviation and rates quoted against these items is only appliceables even if drilling depth varies from Sch `A and nothing extra is admissible on this account. 49 Supply, assembling, jointing lowering and fixing in postion PVC plain casing pipe, heavy duty of size 150mm borewith a thickness 7.5 to 8.5mm conforming toIS-4985 having male threads at spigot end and female threads at socket endscrewed and socket type in all jointing accessories complete all as specified and as directed. 50 Supply assemnling, jointing, lower and fixing in position PVC screen casing pipe, heavy duty of size 150mm, wall thickness 7.5 to 8.5 mm conforming to IS-4985 having male threads at spigot and female threads at socket endscrewed andpocket type in all jointing accessories complete all as specified and as directed. 51 PVC bail plug assembly suitable for 150 mm nominal bore PVC casing pipe internally threaded and jointed with casing pipe complete all as specied and as directed 52 Mild steel hosing clamp, made out of 12mm thick MS flat bend to shape for 150mm bore casing pipe with necessary bolts. Nuts and washers at ground level complete all as specified and as directed 53 PVC well borewell cap 8 mm thick, suitable for 150mm bore having internal threads complete all as specifed and as directed 54 Development of injection bore well by using air compressor of suitable capacity of removing the drilling mud and finer sediments in the surrounding of borewell screens complete all as specifed and as directed (5 hours for each well) 55 Supply and packing pea gravel of size 2 mm to 5 mm all around casing pipe and slotted pipe complete all as specified and as directed
