PROVN OF ONE BOREWELL WITH FILTERATION PLANT AT CSD DEPOT NARANGI UNDER GE GUWAHATI

Amount

M & L for Pilot/ Trial bore of 200 mm dia upto 200 meter depth below ground level in any kind of soil strata including hard stone/ boulder by means of reverse/ direct rotary method complete all as specified and as directed. Note: - In case the results of the bore hole/ strata are found un-satisfactory & the tubewell is not likely to yield the specified quantity of water, the site will be abandoned and no other items shall be executed. Payment shall be made only for executed quantity.

M&L for reaming of bore developed at Ser item No 1.00 above of size not less than 400 mm dia suitable for 200mm dia housing pipe up to 40 Meter depth below ground level & for 150 mm housing pipe for depth from 40 Meter below ground level to 150 Meter deep below ground level. The drilling of bore shall be done by combination rig (Direct/ Reverse rotary circulation method as per site requirement) by deploying suitable machinery of suitable size & different cutters through any kind of soil, boulders, rocks etc including all arrangement for circulation of water using bentonite or silly clay (Quantity/ Content mixed as per manufacturer recommendation or as directed by Engr-in-Charge as per site or soil condition including disposal of spoil from the site n. exc 1 KM and site clearance complete all as specified & directed. [Note:- (i) The cost of mobilisation of rig set with tools and plant assembly, pumps and fittings etc, use and waste of all necessary appliances and materials including levelling dismantling after completion of tube well assembly including testing to entire satisfaction of Engineer-in-Charge shall be deemed to be included in the above quoted rate by the tenderer. No extra claim what so ever shall be entertained on this account. (ii) The rotary rig should be registered with Central Ground Water Authority.]

All as per Ser item No 2.00 above but suitable for 150mm dia housing pipe from 40 Meter below ground level to 150 Meter deep below ground level.

Supply, assembling, jointing and lowering MS (ERW) casing pipe 200mm dia bore having thickness 8.00 mm as per IS-4270/3589 and fixing in position (including necessary cleaning internal and external surfaces and painting inside and outside of pipes with two coats of anti corrosive black bituminous paint suitable for drinking purpose in different depth as directed, screwed, socketed, jointed with heavy duty suitable size collar (stiffeners) and necessary electric arc welding surrounding the entire circumference of pipe with 04 Nos stiffeners of flat iron 40mm x 6mm thick, 300mm long both sides complete all as specified and as directed. [Note:-Pipes shall be of length 06 Mtr unless required in smaller lengths as per borewell requirement.]

Supply, assembling, jointing and lowering MS (ERW) casing pipe 150mm dia bore having thickness 8.00 mm as per IS-4270/3589 and fixing in position (including necessary cleaning internal and external surfaces and painting inside and outside of pipes with two coats of anti corrosive black bituminous paint suitable for drinking purpose in different depth as directed, screwed, socketed, jointed with heavy duty suitable size collar(stiffeners) and necessary electric arc welding surrounding the entire circumference of pipe with 04 Nos stiffeners of flat iron 40mm x 6mm thick, 300mm long both sides complete all as specified and as directed. [Note:-Pipes shall be of length 06 Mtr unless required in smaller lengths as per borewell requirement.]

Supply, assembling, jointing, welding and lowering bail plug having not less than 3.00 mtrs long and 150 mm bore dia MS ERW pipe as per IS 2800(Part-I) having wall thickness 6.35 mm and one end closed by 6 mm thick MS plate welded and fixed in position (including necessary cleaning internal and external and painting inside of pipes with two coats black paint suitable for drinking purpose) and fixed at bottom of casing pipe plain ended and jointed by suitable size socket with full welding complete to made leak proof complete all as specified and directed.

Supply and fixing of MS Taper reducer 200x150 mm having 10 mm wall thickness heavy duty with and including socket threaded as per IS 2800(Part-I) for jointing casing pipe of bore well including necessary welding work complete all as specified and as directed. [Note: - (i) Quoted rate shall be deemed to be inclusive of Arc welding surrounding the entire circumference of pipe, machining, welding materials and anti-corrosive black bituminous paint suitable for drinking purpose both internal and external surface of pipe.]

Supply and packing pea gravel river washed of size 2.5 mm to 4.5 mm throughout annular space of the tube well assembly & slotted pipe of bore well up to required depth complete all as specified and as directed. [Note: - (i) Measurement of pea gravel shall be taken as stack measurement before and after packing and 10% will be deducted for void. The stack measurement shall be done in presence of Engr-in-Charge from the time of unloading]

Supply & fixing centering guide made out of 40 x 6 mm MS Flat Iron made to shape as per IS 2800 Part-I complete all as specified and as directed. [Note: Centering guide shall be provided for proper alignment of pipe as per requirement of site (minimum 02 Nos)

M&L for sanitary sealing around the borewell with PCC (1:2:4) type B1 of suitable size (using 20mm graded stone aggregates) of size 1Mtr x 1Mtr x 1Mtr with embedded gravel feed pipe 80 mm dia bore GI light grade of size 2 Mtr long as per IS: 2800(Part-I) complete all as specified and as directed.

M&L for development of tube well with air compressor as per IS : 11189 of suitable capacity till sand/mud free water of potable quality is obtained and to achieve minimum discharging capacity of 61000 LPH/ Max yield complete all as specified and directed. [Note: - Compressor with accessories and fuel shall be arranged by the contractor and cost thereof deemed to be included in the quoted rate]

M&L for development of tube well as per IS : 11189 by over pumping 25 % using suitable size/ type pump after completion of Item Ser No 13.00 above, including Yield testing for tube well as per IS : 2800-2 1979. [Note: - (i) Yield test of borewell shall be carried out in the presence of GE. (ii) "V" Notch & other equipment included diesel driven pump set including fuel/ submersible cable for metered connection shall be arranged by the contractor and cost thereof deemed to be included in the quoted rate]

Supply only strata sample box with glass cover 3 mm thick having internal dimension 1000mm x 600mm x 100mm made out of 20mm thick wrought Ist class hard wood shisham with hinges, hasp and staple including polishing complete with samples at various depth every 3 meter interval met in boring including lithological log strata chart in duplicate complete all as specified and as directed. [Note:- The contractor should also make and provide a record of discharge, draw down and depth to water level duly recoreded in duplicate for official information and record.]

Supply and fixing well cap made out of MS plate 6mm thick for covering tube well suitable for casing pipe 200mm dia bore upto 100mm depth duly welded with locking arrangement, including making holes for passing submersible cable & one run of support chain as per IS:2800(Part-I) complete all as specified and directed. [Note:- After complition of the work well cap will be used to keep the borewell closed untill the submersible pumping set, column pipes and connected items are installed.]

Supply and fixing mild steel well clamp suitable for 200 mm dia bore casing pipe made out of 200 mm x 16 mm thick MS plate fabricated to shape, including drilling holes, nuts, bolts washers etc complete all as specified and directed. [Note: Minimum 02 Nos well clamp shall be provided]

Supply and fixing clamp suitable for 100 mm dia bore column pipe with clamp ends overlapping the casing pipe by not less than 600 mm, clamp should be made out of MS flat iron 150 mm x 16 mm size fabricated to shape, including drilling holes, nuts, bolts washers etc complete all as specified and directed. [Note: Minimum 02 Nos clamp shall be provided]

Supply and lowering GI column pipe heavy duty (as per IS: 1239, Part-I) 100 mm dia bore 3 mtr in length both side MS flanged (12mm thick) duly welded including nuts, bolts, washers and rubber gasket for flange including making 02 Nos grooves for passing of submersible cable complete all as specified and as directed.

Supply, install, testing and commissioning of 3 phase submersible pump set of capacity 15 HP 415 volts AC 50 HZ 375 LPM 130 mtr head, suitable for 100 mm dia column pipe of the bore well all as specified and directed.

Supply and fix flat submersible cable 3 core of size 10 Sqmm, with multi stranded copper conductor complete all as specified and as directed.

Testing of raw water for all parameters, chemical and bacteriological aspect such as ph value, dissolved solids, hardness as CaCo3, calcium, magnesium, chlorides, sulphates, nitrate, alkalinity, iron, turbidity NTU, mineral oil, colour hazen units, taste, odour, total coliform per 100 ml (microbiological test) & E coli per 100 ml (microbiological test), Arsenic & fluoride test (all as per IS 10500:2012) from Govt laboratory [Note:- The Sample of raw water will be forwarded to the laboratory directly by the department duly sealed. The testing & Postal charge shall be borne by the contractor & report shall be submitted to the department / GE directly by the laboratory.]

Supply, install, testing and commissioning of LT Panel board, TPN 415 Volts, 50 Hz, out door cubical type floor mounted CPRI approved factory made, double door dust and vermin proof IP-54, fabricated out of CRCA sheet not less than 3.15 mm thick with 2mm thick for internal compartment duly powder coated fixed on angle iron pedestal made out of 50x50x6 mm with cable chamber for individual feeders for incomming and outgoing connections, one set of LED indicator lamp RYB with MCBs and fuse and the panel board shall be provided with proper ventilation including suitable size of cable alley copper bus bar suitable for carrying of current 100 Amps with suitable connections from MCCB out going to main bus bar shall be carried out with TPN copper bus bars of suitable rating and connections from main bus bar to out going MCCB's (intake point) will be carried out with TPN copper bus bar as per MCCB rating duly insulated and colour coded heat shrinkable sleeve and shall be rigidly mounted on suitable size of bridge insulator including necessary PCC foundation of minimum 0.35 m height positioned and fixed with suitable nuts, bolts, washers etc to the MC pedestal all as specified and directed comprising of the following :- (a) MCCB 63 Amps 4 Pole 50 Hz 415 V with thermal magnectic release having rupturing capacity 10 KA - 1 No (Incomming) (b) MCCB 40 Amps 4 Pole 50 Hz 415 V with thermal magnectic release having rupturing capacity 10 KA - 1 No (Outgoing) (c) 3 Phase digital multi function meter model A, class 1, 5A with relay Vega Series - 1No (d) Indicating lamp 240 volts LED type - set of three. (e) FASD starter suitable of 15 HP pump/Motor - 02 Nos (f) Single phase preventor (VSP-3) - 01 No

M & L for earthing complete with GI earth plate electrode 60cm x 60cmx 6mm thick buried directly in ground (earth pit not less than 2.25 metre deep below ground level) with the top edge of the earth plate not less than 1.5 metre below normal ground level connected to GI earth strip 32 x6 mm by means of brass bolts ,nuts, check nuts and washers of galvanized iron steel all as shown in electrical plate No.3 of MES Schedule parts-I 2009 .and including excavation & earth work in any type of soil, disposal of surplus soil, providing charcoal dust and common salt upto top edge of earth plate, construction of PCC pit in cement mortar 1:3:6 type C-1 with 40 mm thick RCC 1:2:4 type B-1 as in cover slab, reinforced with 8 mm dia TMT bars @ 100mm c/c both ways with lift hook made out of 6mm dia bar, watering arrangement with funnel and wire mesh and watering pipe of 20mm dia GI light grade and 40mm dia light grade pipe for earth lead protection upto 7.50m length (beyond 7.5 m length will be measured and paid separately) and testing on completion, complete all as specified and directed.

Supply, installation, testing and commissioning of Multi Grade filter of capacity 375 LPM/ 5000 GPH with approx dimensions 1000 mm dia, vertical cylendrical type, filled with Sand & under bed media (Gravels) as per manufacturers recommendation, MS fabricated vessel of suitable size as per IS-2062, incl MS frontal pipelines of suitable dia, butterfly valve of suitable size and required quantity with back wash system incl 2 Nos. pressure gauge, sampling cocks. The shell thickness shall be of 4mm and dished end having 4mm. It should have two coats of synthetic enamel paint over a coat of red Oxide primer from out side and food grade paint from inside. The shell shall also be provided with adequate size of air vent line with valve etc. complete all as specified and directed. (Note :- Rate quoted is deemed to inclusive of its installation cost incl reqd qty of PCC/ RCC, plinth, any type of structure all as required as per manufacturers instruction deemed to be included in the quoted rate).

Supply, installation, testing and commissioning of Activated Carbon Filter of capacity 375 LPM/ 5000 GPH with approx dimensions 1200 mm dia, vertical cylendrical type, MS fabricated vessel of suitable size as per IS-2062, incl frontal MS pipeline of suitable dia, butterfly valve of suitable size and required quantity with back wash system and quantity including 2 Nos. pressure gauge, sampling cocks filled with activated carbon media of minimum 1000 mm depth with iodine value 1000. The shell thickness shall be of 4mm and dished end having 5mm and bed plate under drain collecting system with strainer on bed plate. It should have food grade paint from inside and outside two coats of synthetic enamel paint pver a coat of red oxide primer.The shell shall also be provided with adequate size of air vent line with valve etc complete all as specified and directed. Note :- Rate quoted is deemed to inclusive of its installation cost incl reqd qty of PCC/RCC, plinth, any type of structure all as required as per manufacturers instruction

Supply, installation, testing and commissioning of Iron removal plant, vertical cylendrical type of capacity 375 LPM/ 5000 GPH with approx dimensions 1400 mm dia, MSEP fabricated vessel of suitable size as per IS-2062, incld frontal MS pipeline of suitable dia, butterfly valve of suitable size and required quantity with back wash system incl 2 nos. pressure gauge, sampling cocks filled with iron Specific Resin (ISR) media of minimum 750 mm depth. The shell thickness shall be of 5 mm and dished end having 5mm and bed plate under drain collecting system with strainer on bed plate. Iron Removal filter should have Epoxy paint from inside and outside red oxide primer. The shell shall also be provided with adequate size of air vent line with valve etc complete all as specified and directed. [Note : Non - Toxic Test certificate for Iron Specific resin ( ISR ) which can take iron upto 10 ppm. Rate quoted is deemed to inclusive of its installation cost incl reqd qty of PCC/RCC, plinth, structure all as required as per manufacturers instruction deemed to be included in the quoted rate]. Make: Ion Exchange or equivalent

Supply, installation, testing and commissioning of Chemical Dosing System (CDS-3 with High Speed Agitator) for Soda Ash at raw water collection tank with electromagnetic metering run on 220V AC for 100% accurate dosing with all electrical connections with 200 ltrs PVC tank 1 No with level switch interlock to shut off pump at low level including PVC foot valve and strainer at suction end complete including necessary electrical connection and pipe connection in water supply pipe line by making ferrule in delivery line with gate valve complete all as specified and directed. Note :- Rate quoted is deemed to inclusive of its instllation cost incl reqd qty of PCC/RCC, plinth, any type of structure all as required as per manufacturers instruction. No extra cost shall be paid to the contractor on this account.

Supply, installation, testing and commissioning of Chemical Dosing System (CDS-3 without High Speed Agitator) for Sodium Hypo-chlorite at raw water collection tank with electromagnetic metering pump run on 220V AC for 100% accurate dosing with all accessories with 200 ltrs PVC tank with level switch interlock to shut off pump at low level including PVC foot valve and strainer at suction end complete including necessary electrical connection and pipe connection in water supply pipe line by making ferrule in delivery line with gate valve complete all as specified and directed. Note :- Rate quoted is deemed to inclusive of its instllation cost incl reqd qty of PCC/RCC, plinth, any type of structure all as required as per manufacturers instruction.

Supply, install, testing and commissioning of Automatic Chlorine Dosing Pump (diaphragm type metering dosing pump with backlit LED display) of capacity 06 LPH fixed on and including 100 litre pvc tank with level switch interlock to shut off pump at low level including PVC foot valve and strainer at suction end complete including necessary electrical connection and pipe connection in water supply pipe line by making ferrule in delivery line with gate valve complete all as specified and directed. Note :- Rate quoted is deemed to inclusive of its instllation cost including required quantity of PCC/RCC, plinth, any type of structure all as required as per manufacturers instruction.

Excavation in trenches n.exc 1.5 mtr wide and n.exc 1.5 mtr in depth for laying of GI pipe and PVC cable etc n. exc 10 sqm on plain and n.exc 1.5m in depth and getting out in soft/loose soil complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm in soft /loose soil complete all as specified and directed.

Removing excavated materials n.exc 50 m and deposited where directed at a level n.exc 1.5m above the starting point in soft/loose soil complete all as specified and directed.

M & L for Sand filling in trenches as LT UG Cable protection including watering and consolidation complete all as specified and directed.

M & L for laying of Bricks in trenches as cable protection; common burnt clay building bricks, sub-class ‘A’ designation 75 complete all as specified and directed.

M & L for Tubes, 'light grade', galvanised of 80 mm dia with all fittings; laid in trenches as cable protection complete all as specified and directed.

Supply and laying of XLPE insulated armoured heavy duty electric cable with aluminium conductor 1100 volts grade cross sectional area 25 Sqmm 4 core complete all as specified and directed.

Supply and fixing of CI Non Return Valve 100 mm dia Class PN 1.6 ISI marked complete all as specified and directed.

S&F of 3- layer PP-R (Polypropylene random copolymer) pipes 90mm outer dia, SDR 7.4 (PN-16) UV stabilized and antimicrobial fusion welded having thermal stability for hot & cold water supply including fittings PP-R plain & brass threaded type polypropylene random, jointing complete including laid in trenches/floor complete all as specified and directed.

All as per item No 39.00 here in before but outer dia of PP-R pipe 50 mm all as specified and directed.

All as per item No 39.00 here in before but outer dia of PP-R pipe 40 mm all as specified and directed.

All as per item No 39.00 here in before but outer dia of PP-R pipe 25 mm all as specified and directed.

S & F of 90 mm outer dia PP-R gate valve (brass insert) complete all as specified and directed.

S & F of 50 mm outer dia PP-R gate valve (brass insert) complete all as specified and directed.

S & F of 40 mm outer dia PP-R gate valve (brass insert) complete all as specified and directed.

S & F of 25 mm outer dia PP-R gate valve (brass insert) complete all as specified and directed.

PURBANCHAL BUILDERS