COMPREHENSIVE MAINTENANCE OF WATER SUPPLY INSTALLATIONS AT AMDALLI TOWNSHIP INCLUDING EXTERNAL WATER SUPPLY DISTRIBUTION SYSTEM UNDER GE (SB) KARWAR

Amount

M&L for cleaning RCC underground sumps / ground level reservoirs / hill‑top reservoirs including mouths of connected pipes by dewatering with portable pump, removing sludge / mud / dirt, rinsing with fresh water, dewatering again, washing with fresh water mixed with sodium hypochlorite and finally applying one coat of antibacterial sodium hypochlorite solution to inner surfaces; including stencilling outside with synthetic enamel paint as "TANK CLEANED ON (DATE)" and removing debris, complete all as specified and directed for the following capacity:- (a) 9,00,000 litres at Amdalli Township (GLR)

(b) 3,00,000 litres at Amdalli Township (HTR).

S&F in repairs mild steel nuts, bolts, washers, flanges etc., complete all as specified and directed.

Supply and topping up lubricating oil of grade 220 including removing old unserviceable oil, complete all as specified and directed.

Supply and filling grease for pump bearings, complete all as specified and directed.

M&L for preparation of existing painted surfaces of pressure sand filters, air compressors, motors, pumps and water pipelines at Amdalli Township pump house, filling cavities as required and applying one coat of synthetic enamel paint by spray machine as per colour code, including writing SM & MES No. on pump and motor and indication markings, complete all as specified and directed.

S&F in repairs 12 V, 65 Ah battery, complete all as specified and directed.

S&F in repairs gland packing for pump of 5 HP to 12.5 HP, as required, complete all as specified and directed.

M&L for dismantling, rewinding and refitting 3‑phase 415 V electric motor 1.5 HP including transportation to workshop, removing burnt winding, rewinding with super‑enamelled copper wire of suitable gauge with insulation materials, varnishing and drying, replacing bearings / bushes as required, reassembling, aligning, testing and commissioning, complete all as specified and directed.

All as per item 8 above but for 5 HP capacity, complete all as specified and directed.

All as per item 8 above but for 12.5 HP capacity, complete all as specified and directed.

M&L for overhauling centrifugal / vertical turbine pump set, 3‑phase 415 V, including opening, thorough cleaning, replacement of gland packing, rubber insertion and two bearings (DE / NDE), reassembly and testing, complete all as specified and directed for the following capacity:- (a) 1.5 HP

S&F in repair MCCB 400 A, 3‑pole, 50 kA breaking capacity, 415 V AC with adjustable thermal‑magnetic release, complete all as specified and directed.

S&F in repair MCCB 250 A, 3‑pole, 36 kA breaking capacity, 415 V AC with adjustable thermal‑magnetic release, complete all as specified and directed.

S&F in repairs HRC fuse links 250 A, DIN type, 80 kA, 500 V AC, 50 Hz, Size 1, complete all as specified and directed.

S&F in repairs HRC fuse links 125 A, DIN type, 80 kA, 500 V AC, 50 Hz, Size 00, complete all as specified and directed.

S&F in repairs HRC fuse links 100 A, DIN type, 80 kA, 500 V AC, 50 Hz, Size 00, complete all as specified and directed.

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m deep and getting out in soft / loose soil for laying / taking out GI pipeline, complete all as specified and directed.

Returning, filling in, using excavated soil spreading, levelling, watering and well ramming in layers not exceeding 25 cm complete all as specified and directed.

Removing excavated surplus soil/ material to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point, complete all as specified and directed.

Taking out old unserviceable GI tubing with all fittings from trenches, walls and floors complete all as directed for the following sizes:- (a) 100 mm bore Note: Excavation & earthwork will be measured separately.

(b) 50 mm bore

(c) 40 mm bore

(d) 25 mm bore

Laying only in new or old position in walls / floors GI tubing obtained from item 20.01 to 20.03, including cleaning and replacement of unserviceable fittings (bends, elbows, tees, sockets etc.) complete all as specified and directed for the following sizes: (a) 50 mm Note: All the necessary fittings shall be provided by the contractor and the unit rate quoted shall deemed to be inclusive of the same.

Laying only in trenches GI tubing obtained from item No. 20.00 to 20.02, including cleaning and replacement of unserviceable fittings (bends, elbows, tees, sockets etc.) complete all as specified and directed for the following sizes: (a) 100 mm Note: (i) All the necessary fittings shall be provided by the contractor and the unit rate quoted shall deemed to be inclusive of the same; (ii) Excavation & earthwork measured separately.

S&F GI tubing, medium grade, galvanised, with all fittings and laid in walls, roof, ceiling or floors, complete all as specified and directed for the following sizes:- (a) 50 mm

S&F GI tubing, medium grade, galvanised, with all fittings and laid in trenches, complete all as specified and directed for the following sizes:- (a) 100 mm Note: Excavation & earthwork will be measured separately.

Taking out old unserviceable PVC / UPVC / CPVC pipe with all fittings from ceilings / walls / floors complete all as specified and directed of the following sizes:- (a) 50 mm

Supply and laying CPVC pipe SDR 11 with plain CPVC SDR 11 fittings on walls / ceilings or in floors / trenches, complete all as specified and directed for the following sizes:- (a) 50 mm

S&F gun‑metal gate valve ISI marked with iron hand wheel, screwed both ends for iron pipe, complete all as specified and directedfor the following sizes:- (a) 50 mm

S&F in repairs high‑pressure ball valve of PTMT with epoxy‑coated aluminium / stainless‑steel rod and high‑density plastic ball, screwed for 25 mm iron pipe (minimum weight 455 g), complete all as specified and directed.

M&L for cleaning PVC water storage tank 500 litres including mouths of circulating pipes and cleaning with sodium hypochlorite gel to remove bacteria; including stencilling outside the tank with synthetic enamel paint as "TANK CLEANED ON (DATE)", complete all as specified and directed.

All as per item 29 above but for 1000 litres capacity, complete all as specified and directed.

S&F in repairs rotational moulded polythene water storage tank, triple‑layered, dust‑proof, ISI marked, cylindrical vertical with closed top, hoisted and fixed in position, capacity 500 litres, including all the necessary fittings & fixtures complete all as specified and directed.

S&F in repairs PVC water tank cover of existing make suitable for 1000 litres capacity with PVC hinges, bolts and locking arrangement, complete all as specified and directed.

Disconnecting overhead PVC service tank connections of any capacity (inlet / outlet / overflow 25 to 50 mm), rectifying leakage by cutting oversize hole, providing and fixing GI pipe fittings (nipple, union, socket, reducer, check nuts etc.) 25 to 50 mm with rubber / fibre packing and reconnecting / positioning tank in place, complete all as directed.

Taking out old unserviceable DI / CI pipe with all fittings from trenches or above ground level complete all as directed for the following sizes:- (a) 100 mm dia

(b) 150 mm dia

(c) 200 mm dia

(d) 300 mm dia

Laying only DI / CI pipe in new or old position obtained from item 34.00 to 34.03, including cleaning, complete all as specified and directed for the following sizes:- (a) 100 mm dia

(b) 150 mm dia

(c) 200 mm dia

(d) 300 mm dia

Supply, laying and testing ductile‑iron tubing, class K‑7, with all fittings in trenches, complete all as specified and directed for the following sizes:- (a) 100 mm dia

(b) 150 mm dia

(c) 200 mm dia

(d) 300 mm dia

M&L for bends (any radius / angle), tapers (straight / bend / increasing / decreasing), tee pieces single branch, 'Y' junctions, double branches, crosses, collars, caps and plugs, all ends flanged / sockets or socket & spigot up to 300 mm dia, complete all as specified and directed.

M&L for rubber gasket joints with all jointing materials, complete all as specified and directed for the following sizes:- (a) 100 mm

(b) 150 mm dia

(c) 200 mm dia

(d) 300 mm dia

M&L for lead‑wool joints with all jointing materials like lead wool and spun yarn, complete all as specified and directed for the following sizes:- (a) 100 mm

(b) 150 mm dia

(c) 300 mm dia

M&L for preparation of existing painted surfaces of motors, pumps, water pipelines and panel boards at Amdalli Township pump house and applying one coat of synthetic enamel paint by spray machine as per colour code, including cavity filling, writing SM & MES No. on pump and motor and indication markings, complete all as specified and directed.

Dismantling and taking out defective spindle from sluice valve 100 mm dia; removing old gate stud by grinding, rebuilding by brass welding and turning / polishing; greasing, servicing to original standard; refixing in position and testing, complete all as specified and directed.

All as per item 41 above but for 150 mm dia, complete all as specified and directed.

All as per item 41 above but for 300 mm dia, complete all as specified and directed.

M&L for dismantling old unserviceable sump pump set 1.5 HP, any type; supply, installation, testing and commissioning submersible pump set, electric driven 1.5 HP, single phase 230 V, 50 Hz, head 23 m, suction 25 mm, delivery 25 mm, self‑priming, CI impeller and CI body with all accessories; complete all as specified and directed. Note: Old pump to be deposited in MES store.

S&F in repairs cast‑iron sluice valve 100 mm, flanged PN‑1.6 conforming to IS 14846, hand‑wheel operated with stainless‑steel stem and gun‑metal parts, flange drilled to IS 1538, non‑rising stem, PN‑1.6, complete all as specified and directed.

All as per item 45 above but for 150 mm dia, complete all as specified and directed.

All as per item 45 above but for 300 mm dia, complete all as specified and directed.

S&F in repairs water pressure gauge, dial type, range 0–12 kg/sq cm, complete all as specified and directed.

S&F in repairs water pressure gauge, dial type, range 0–16 kg/sq cm, complete all as specified and directed.

Supply only chemical‑resistant rubber hose of 15 mm dia, complete all as specified and directed.

S&F in repairs MCB TPN 40 to 100 A, 415 V, 3‑phase, 10 kA, 'C' series, complete all as specified and directed.

S&F in repairs MCB SPN 6 to 32 A, 230 V, single phase, 10 kA, 'C' series, complete all as specified and directed.

S&F in repairs HRC fuse links 2 to 16 A, 80 kA, 500 V AC, 50 Hz, FGN, complete all as specified and directed.

S&F in repairs cast‑iron wafer‑type butterfly valve 200 mm, without lugs, gear operated, stainless‑steel grade 304 disc, Nitrile / EPDM lining, test pressure PN‑10 / PN‑16, complete all as specified and directed.

All as per item 54 above but for 150 mm dia, complete all as specified and directed.

All as per item 54 above but for 100 mm dia, complete all as specified and directed.

All as per item 54 above but for 50 mm dia, complete all as specified and directed.

Carrying out ‘B’ Check through the authorised representative/service engineer of the manufacturer for Kirloskar DG Set of 62.5 KVA capacity at Amdalli Township Pump House, including cost of repairs and replacement of spares as detailed from (a) to (e) below and as per manufacturer’s instructions, complete all as specified and directed: (a) Supply, checking and topping up lubricating oil filter including taking down old filter. (b) Supply and fix bypass filter including taking down old filter. (c) Checking of mechanical governor. (d) Checking and topping up of coolant SK-802 OIC make / Valvoline / SERVO / Hindustan to required level. (e) Any other checks as per manufacturer’s instructions. Note: (i) ‘B’ Check shall be carried out after every 250 running hours or six months, whichever is earlier. (ii) Coolants/oil shall be measured and paid under relevant items.

M&L for cleaning pressure sand filters of capacity 50 Cum/hr opening inspection covers, removing existing filter media, cleaning thoroughly, refilling and topping up deficient media as required and fixing covers including replacement of unserviceable rubber gaskets, complete all as specified and directed. Note: Filter media for topping up will be measured and paid separately under relevant items.

Supply and filling granular fine pebbles suitable for filter media of pressure sand filters, free from salts, alkalis, minerals, silt and other impurities, complete all as specified and directed.

Supply and filling quartz coarse sand suitable for filter media of pressure sand filters, free from salts, alkalis, minerals, silt and other impurities, complete all as specified and directed.

S&F in repairs cast‑iron hand wheel suitable for sluice valve size 80 to 300 mm, complete all as specified and directed.

S&F in repairs Bearing No. 6311 ZZ, complete all as specified and directed. Make: SKF / TATA / NBC / FAG.

S&F in repairs Bearing No. 6209‑2RS, complete all as specified and directed. Make: SKF / TATA / NBC / FAG.

Supply and fixing in repair dial‑type level indicator, range up to 10 m, complete all as specified and directed.

Opening LT panel cubicle for pump sets; cleaning bus‑duct chamber; inspecting complete panel; tightening nuts and bolts of incoming / outgoing ACBs / MCCBs / SFUs; warming to remove moisture; recording IR value with 1.1 kV megger; applying Z931 Strippex‑B and Z955 Strippex (SL) of Stanac to prevent flashover / fire; replacing 3 mm gasket; closing all holes; complete all as specified and directed. Note: Rate deemed to include minor nuts, bolts, washers etc.

Taking down carefully old unserviceable LT underground cable of any size from trenches / walls / poles and removing unserviceable cable from site after affording credit as applicable, including removal of brick / PCC cable cover, complete all as specified and directed.

Supply, laying, joining, testing and commissioning 3.5‑core 25 sqmm XLPE insulated, armoured, heavy‑duty LT aluminium conductor cable 1100 V grade with lugs and glands, laid in trenches / fixed on wall / pole or drawn through GI pipe, complete all as specified and directed.

All as per item No.69 above but using 35 sqmm 3.5‑core cable, complete all as specified and directed.

All as per item No.69 above but using 95 sqmm 3.5‑core cable, complete all as specified and directed.

M&L for earthing complete with galvanised cast‑iron earth plate electrode 600 × 600 × 6 mm buried directly in ground (earth pit not less than 2.25 m deep below normal ground level) with top edge of plate not less than 1.5 m below normal ground level; connected to galvanised earth strip 32 × 6 mm by bolts, nuts and check nuts, protected with 15 mm bore light‑grade GI pipe up to main board; 20 mm bore watering pipe with CI / MS funnel and wire mesh; including excavation in any soil and removal of surplus soil not exceeding 50 m, charcoal dust and common salt, pit and RCC cover 1:2:4 type B‑1 with 40 × 40 × 6 mm angle‑iron frame; complete all as specified in plate No.03 of SSR part -1, 2009. Note: Rate deemed to include necessary excavation and earthwork, PCC 1:3:6 chamber, GI medium‑grade watering pipe 15 mm bore and RCC cover slab 50 mm thick with 8 mm CTD bars @ 140 mm c/c both ways.

Supply and fixing in replacement new terminal box suitable for 12.5 HP electric motor, fixed with nuts, bolts and washers, with 3‑phase copper lugs and connections from motor to terminal box, complete all as specified and directed.

S&F in replacement 3 core 10 sqmm copper cable for submersible pump motor, complete all as specified and directed.

S&F in repair LED phase indicator (Red, Yellow and Blue) suitable for existing LT panel, complete all as specified and directed.

S&F in repair digital ammeter range 0–500 A suitable for existing LT panel, complete all as specified and directed.

S&F in replacement iron chain 20 m length with two new pulleys on rail / girder mounted type, greased and designed for 5‑ton lifting capacity for motors, complete all as specified and directed.

Supply and laying synthetic rubber insulated mat 2 mm thick for voltage up to 11 kV for electrical purpose as per IS 15652:2006 (superseding IS 5424), size 2 m × 1 m, complete all as specified and directed.

S&F in repair 80mm dia flexible PVC hose pipe suitable for submersible pump including clamps, complete all as specified and directed.

Supply and filling alum lump, Grade-I, conforming to IS:260/1976, complete all as specified and directed

M&L for chlorination of water on daily basis using calcium-based granular disinfectant having available chlorine concentration between 65% and 70%, conforming to IS:1065/1989, including uniform dosing and maintaining residual chlorine within permissible limits as per IS:10500/2012 for potable water, complete all as specified and directed

PEGASOS ENGINEER TRADERS (BID ID -3468143)

HARSHITA MARINE SERVICES (BID ID -3469230)

N P ENGINEERINGS (BID ID -3469479)

SRI GURUPRASAD INFRATECH (BID ID -3469811)

M/S VERNEKAR AGENCIES (BID ID -3470351)