86513E8 BOQ REP TO EXT WATER SUPPLY SYS, DG SETS, CLEANING AND WKS IN DGQA AND PALLAVARAM UNDER STM

Amount

REVISED BOQ UPLOADED ON 10 MAY2022, BOQ UPLOADED ON 30 APRIL 2022 CANCELLED

SCH "A" PART-I (EXTERNAL WATER SUPPLY)

Cutting existing bituminous road surfaces to a depth not more than 150mm, and making good the surface with PCC 1:3:6, type C1, using 20mm graded stone aggregate to match to the adjacent surface after laying pipes / cable including removal of debris to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and as directed.

The cubical content of concrete provided to make good shall be measured for purpose of payment.

Surface dressing not exceeding 15cm including all grass vegetation, saplings, shrubs, brushwood, undergrowth, roots etc., and removing rubbish to outside of MD land in any type of soil complete all as specified and as directed.

Earthwork in excavation by mechanical means (hydraulic excavator) in foundation trenches or drains (not exceeding 1.5m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5m, including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 50m in any type of soil complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25cm in any type of soil complete all as specified and as directed.

Taking up / down water mains of galvanised iron tubing including all fittings from trenches / walls / roof / floor etc., and refixing old steel tubing and connections in new or old position (Walls, ceiling, floors, etc.) including cleaning or rerunning the old screw threads, of the following bore of pipes complete all as specified and as directed.

(a) The steel tubing as retrieved vide taking down shall be used for executing this item.

(b) The GI specials as required shall be deemed to be included in the rate quoted.

(i) 15mm bore of pipe.

(ii) 20mm bore of pipe.

(iii) 25mm bore of pipe.

(iv) 40mm bore of pipe.

(v) 50mm bore of pipe.

Taking up / down water mains of galvanised iron tubing including all fittings from trenches / walls / roof / floor etc., and removal from site under Sch of credit and provision of steel tubing, galvanised, medium grade, with all fittings such as bends, elbows, tees etc., and laid in trenches / under roads / crossings etc., of the following bore of pipes complete all as specified and as directed.

Earthwork as required shall be measured and paid separately.

(a) 15mm bore of pipe.

(b) 20mm bore of pipe.

(c) 25mm bore of pipe.

(d) 40mm bore of pipe.

(e) 50mm bore of pipe.

(f) 80mm bore of pipe.

(g) 100mm bore of pipe.

Taking up / down water mains of galvanised iron tubing including all fittings from trenches / walls / roof / floor etc., and removal from site under Sch of credit and provision of steel tubing, galvanised, medium grade, with all fittings such as bends, elbows, tees etc., and fixed complete to walls and ceilings or laid in floors etc., of the following bore of pipes complete all as specified and as directed.

(a) 15mm bore of pipe.

(b) 20mm bore of pipe.

(c) 25mm bore of pipe.

(d) 40mm bore of pipe.

(e) 50mm bore of pipe.

(f) 80mm bore of pipe.

(g) 100mm bore of pipe.

Taking up cast iron mains (including all fittings), with spigot and socket ends and lead joints including burning out joints and recovering lead, trenches / walls / roof / floor etc., and removal from site under Sch of credit and provision of cast iron pipes with spigot and socket ends centrifugally cast. Class A, in any length, laid in trenches or on supports, laid and tested of the following bore of pipe complete all as specified and as directed.

(a) Earthwork as required shall be measured and paid separately.

(b) CI specials and lead joints as required shall be measured and paid separately.

(i) 100mm bore of pipe.

(ii) 150mm bore of pipe.

Cutting the existing damaged cast iron / galvanised iron / ductile iron pipes in position, and inserting suitable collar to suit the same diameter, making joints and testing for water tightness, including necessary earthwork at any depth and width in any location, in sludgy soil, using JCB, dewatering and return filling with due compaction in layers of the following dia of pipes complete all as specified and as directed.

(a) Earthwork as required is deemed to be included in the rate quoted.

(b) CI/DI/GI pipes, CI specials like collar and lead / tyton joints as required shall be measured and paid separately.

(c) Rate shall include cutting of pipe in two locations to insert the cast iron collars.

(i) 150mm bore of pipe.

(ii) 100mm bore of pipe.

Cast iron fittings such as Bends (any type, radius and angle) tapers any type, (straight, bend, increasing, decreasing or double socket etc.) Tee pieces single branch. "Y" junction, double branch, cross (all sockets or socket and spigot) collars, caps and plugs as required, suitable for cast iron / ductile iron pipes upto 150mm bore of pipe, (flanged / socket) complete all as specified and as directed

Run lead joints as in repairs by melting down old lead including spun yarn or tarred gasket for the cast iron pipes, spigot and socket joints of the following bore of pipes complete all as specified and as directed.

(a) 80mm bore of pipe.

(b) 100mm bore of pipe.

(c) 150mm bore of pipe.

Dismantling and taking up unserviceable gate valve and removal from site under Sch of credit and provision of gun metal, globe or gate valves, with iron wheel head screwed both ends for iron pipe and fixed of the following bore of pipe complete all as specified and as directed.

(a) 15mm bore of pipe.

(b) 20mm bore of pipe.

(c) 25mm bore of pipe.

(d) 40mm bore of pipe.

(e) 50mm bore of pipe.

Dismantling and taking up unserviceable sluice valve and removal from site under Sch of credit and provision of Cast iron sluice valve with flanged ends drilled with holes, Class PN 1.6, ISI marked (conforming to IS 14846) with stainless steel, non rising spindle, gun metal working parts with hand wheel and checknut, rubber gasket 3mm thick, mild steel nut, bolts and washers, necessary machining works of the following bore of pipe complete all as specified and as directed.

(a) 80mm bore of pipe.

(b) 100mm bore of pipe.

(c) 150mm bore of pipe.

Dismantling and taking up unserviceable non return valve and removal from site under Sch of credit and provision of cast iron non return valve, body seat of gun metal with flanged ends drilled with holes, Class PN 1.6, ISI marked (conforming to IS 5312) with rubber gasket 3mm thick, mild steel nut, bolts and washers, necessary machining works of the following bore of pipe complete all as specified and as directed.

(a) 100mm bore of pipe.

(b) 80mm bore of pipe.

Dismantling and taking up unserviceable ball valve and removal from site under Sch of credit and provision of ball valves high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball screwed for iron pipe and fixed of the following bore of pipe complete all as specified and as directed.

(a) 15mm bore of pipe.(minimum weight 15mm-142gms)

(b) 20mm bore of pipe.(minimum weight 20mm-210gms)

(c) 25mm bore of pipe.(minimum weight 25mm-455gms)

Dismantling and opening up in situ of Cast iron sluice valve, and removing spindle, check nut, gasket, gland rope, mild steel nut, bolts and washers, taken on Sch of credit and replacing the same with new suitable parts, gland packing with necessary machining works assembling back and testing for proper function for the bore of pipe 80mm to 150mm complete all as specified and as directed.

Dismantling and taking up unserviceable foot valve and removal from site under Sch of credit and provision of cast iron foot valve, single disc with flanged ends drilled with holes, ISI marked (conforming to IS 4038) with rubber gasket 3mm thick, mild steel nut, bolts and washers, necessary machining works of bore of pipe 80mm complete all as specified and as directed.

The footvalves are fitted to existing suction lines of monoblock / centrifugal pumps in the UG Sump

Dismantling and taking up unserviceable foot valve and removal from site under Sch of credit and provision of cast iron foot valve, ball type including mild steel nut, bolts and washers, necessary machining works of bore of pipe 80mm complete all as specified and as directed.

Construction of valve chamber suitable for sluice valves / gate valves, with earthwork in any type of soil, PCC foundation 100mm thick of 1:4:8, type D2, using 40mm graded stone aggregate, brickwork with fly ash bricks in CM 1:6, 230mm thick, PCC coping 50mm thick of 1:2:4, type B1, using 20mm graded stone aggregate, flooring of 40mm thick in PCC 1:2:4, type B1 using 20mm graded stone aggregate, rendering on both fair and other than fair face of brickwork in 15mm thick in CM 1:4, finished fair and even, finished with three coats of whitewash after preparing surfaces, mild steel cover of width 200mm more than inner dimension fabricated out of of steel sheet of 3.15mm, on flat iron framework of 25mm x 4mm on edges and diagonal with base frame of angle iron 40mm x 40mm x 6mm, including locking arrangement painted with two coats of synthetic enamel paint over a coat of red oxide primer including dismantling existing valve chambers and removal of unserviceable debris outside MD land of the 900mm x 900mm x 900mm inner dimensions complete all as specified and as directed.

Part construction of valve chamber suitable for sluice valves / gate valves, including clearing the vegetation in and around the chamber, earthwork in any type of soil as required, brickwork with fly ash bricks in CM 1:6, 230mm thick, PCC coping 50mm thick of 1:2:4, type B1, using 20mm graded stone aggregate, flooring of 40mm thick in PCC 1:2:4, type B1 using 20mm graded stone aggregate, rendering on both fair and other than fair face of brickwork in 15mm thick in CM 1:4, finished fair and even, finished with three coats of whitewash after preparing surfaces, mild steel cover of width 200mm more than inner dimension fabricated out of steel sheet of 3.15mm, on flat iron framework of 25mm x 4mm on edges and diagonal with base frame of angle iron 40mm x 40mm x 6mm, including locking arrangement painted with two coats of synthetic enamel paint over a coat of red oxide primer including dismantling existing valve chambers to a depth of 300mm from ground level and removal of unserviceable debris outside MD land of the following inner dimensions complete all as specified and as directed.

(a) 600mm x 600mm x 600mm

(b) 900mm x 900mm x 900mm

(c) 1200mm x 1200mm x 1200mm

SCH "A" PART-II (REPAIRS TO PUMPSETS)

Dismantling the non functioning centrifugal pumpsets of capacity 5.0 HP to 15.0 HP from foundation by opening of coupling and foundation bolts and transporting to workshop for repairing and reassembling after servicing and overhauling complete with oiling / greasing, lubricating the parts includng repair / renewal of worn out parts and spray painting with one coat of synthetic enamel paint of existing colour and writing SM/MES No with white paint and reinstallation, commissioning and testing on full load complete all as specified and directed by Engineer - in - Charge.

(a) Major defective spares replaced shall be measured and paid separately as supply only as given in list of spares here-in-after.

(b) Cost of consumables like grease, cotton waste etc., other minor items /spares such as nut, bolts washers, gaskets, paints etc which are not covered under List of spares but required for effective functioning of the plant shall be deemed to be included in the rate quoted.

Supply only spare parts of centrifugal pumpsets complete all as specified and as directed.

(a) Ball bearing for centrifugal pump set of any capacity.

(b) Bush bearing for centrifugal pump set of any capacity.

(c) Gland bolts, nuts and washers for centrifugal pump set of any capacity.

(d) Gasket for centrifugal pump set of any capacity.

Dismantling the non functioning motors of centrifugal pumpset of following capacity / type from foundation by opening of coupling and foundation bolts and transporting to workshop rewinding with super enamelled copper winding of appropriate gauge and quality and insulated with varnish after removal of burnt out winding from slots with emery paper, including replacement of minor parts like worn out bush, bearing, shaft metalling / grinding and terminal lead for AC three phase, 415 volts grade, reassembling the motor commissioning and testing for full functionality, pumpsets of following capacity complete all as specified and directed by Engineer - in - Charge.

(a) Centrifugal pumpsets of capacity 10.0 HP

(b) Centrifugal pumpsets of capacity 5.0 HP

Taking out non functional submersible (vertical) type pumpsets including motors of following capacity / type from bore well for repair by lifting GI tubing of size 40mm / 50 mm from upto a depth of 220 feet by means of chain pully block or other T&P, disconnecting electrical and pipe line connection, transporting to workshop for repairing and reassembling after servicing and overhauling complete with oiling / greasing, lubricating the parts includng repair / renewal of worn out parts and spray painting with one coat of synthetic enamel paint after cleaning and scrubing, shifting back to borewell, lowering and reinstallation, commissioning and testing on full load complete all as specified and directed by Engineer - in - Charge.

(a) Major defective spares replaced shall be measured and paid separately as supply only as given in list of spares here-in-after.

(b) Cost of consumables like grease, cotton waste etc., other minor items /spares such as nut, bolts washers, gaskets, paints etc which are not covered under List of spares but required for effective functioning of the plant shall be deemed to be included in the rate quoted.

(i) Submersible pumpsets of assorted capacity 3.0 HP / 3.5 HP

(ii) Submersible pumpset of capacity 10.0 HP / 15.0 HP

Supply only spare parts of submersible (vertical) type pumpsets for borewell complete all as specified and as directed.

(a) Shaft for pump for submersible pumpset of capacity 3.0 HP / 3.5 HP

(b) Impeller for submersible pumpset of capacity 3.0 HP / 3.5 HP

(c) Gun metal bearing brush for submersible pumpset of capacity 3.0 HP / 3.5 HP

(d) Thrust bearing complete for submersible pumpset of capacity 3.0 HP / 3.5 HP

(e) Stainless steel motor coupling with key for submersible pumpset of capacity 3.0 HP / 3.5 HP

(f) Stainless steel studs and nuts for submersible pumpset of capacity 3.0 HP / 3.5 HP

(g) Shaft for motor for submersible pumpset of capacity 3.0 HP / 3.5 HP

(h) Key for submersible pumpset of capacity 3.0 HP / 3.5 HP

Dismantling motor of submersible (vertical) type pumpsets of any make / model, rewinding with super enamelled copper winding of appropriate gauge and quality and insulated with varnish after removal of burnt out winding from slots with emery paper, including replacement of minor parts like worn out bush, bearing, "O" rings and filling of cooling oil with oil seal and terminal lead for AC three phase, 415 volts grade, reassembling the motor commissioning and testing for full functionality, pumpsets of following capacity complete all as specified and directed by Engineer - in - Charge.

(i) Submersible pumpsets of assorted capacity 3.0 HP / 3.5 HP

(ii) Submersible pumpset of capacity 10.0 HP / 15.0 HP

Taking out defective submersible pumpets including motor of capacity 10.0 HP to 15.0 HP from openwell / sump for repair by lifting GI tubing of size 50 mm / 80mm / 100mm from upto a depth of 40 feet / 50 feet by means of chain pully block or other T&P, disconnecting electrical and pipe line connection, transporting to workshop for repairing and reassembling after servicing and overhauling complete with oiling / greasing, lubricating the parts includng repair / renewal of worn out parts and spray painting with one coat of synthetic enamel paint after cleaning and scrubing, shifting back to openwell / sump , lowering and reinstallation, commissioning and testing on full load complete all as specified and directed by Engineer - in - Charge.

(a) Major defective spares replaced shall be measured and paid separately as supply only as given in list of spares here-in-after.

(b) Cost of consumables like grease, cotton waste etc., other minor items /spares such as nut, bolts washers, gaskets, paints etc which are not covered under List of spares but required for effective functioning of the plant shall be deemed to be included in the rate quoted.

Supply only spare parts of submersible pumpsets for openwell / sump complete all as specified and as directed.

(a) Shaft for pump for submersible pumpset of capacity 10.0 HP to 15.0 HP

(b) Impeller for submersible pumpset of capacity 10.0 HP to 15.0 HP

(c) Gun metal bearing brush for submersible pumpset of capacity 10.0 HP to 15.0 HP

(d) Thrust bearing complete for submersible pumpset of capacity 10.0 HP to 15.0 HP

(e) Stainless steel motor coupling with key for submersible pumpset of capacity 10.0 HP to 15.0 HP

(f) Stainless steel studs and nuts for submersible pumpset of capacity 10.0 HP to 15.0 HP

(g) Shaft for motor for submersible pumpset of capacity 10.0 HP to 15.0 HP

(h) Key for submersible pumpset of capacity 10.0 HP to 15.0 HP

Dismantling motor of submersible openwell / sump pumpsets of any make / model, rewinding with super enamelled copper winding of appropriate gauge and quality and insulated with varnish after removal of burnt out winding from slots with emery paper, including replacement of minor parts like worn out bush, bearing, "O" rings and filling of cooling oil with oil seal and terminal lead for AC three phase, 415 volts grade, reassembling the motor commissioning and testing for full functionality, pumpsets of 10.0 HP to 15.0 HP capacity complete all as specified and directed by Engineer - in - Charge.

Steel tubing, galvanised, heavy grade, in unbroken segments of 3.0m, as column / casing pipe screwed both ends, 01 No heavy duty coupling suitable in replacement of damaged segments bore of pipe 100mm complete all as specified and directed by Engineer - in - Charge.

Steel tubing, galvanised, heavy grade, in unbroken segments of 3.0m, as column / casing pipe screwed both ends, 01 No heavy duty coupling suitable in replacement of damaged segments bore of pipe 80mm complete all as specified and directed by Engineer - in - Charge.

Steel tubing, galvanised, heavy grade, in unbroken segments of 3.0m, as column / casing pipe screwed both ends, 01 No heavy duty coupling suitable in replacement of damaged segments bore of pipe 50mm complete all as specified and directed by Engineer - in - Charge.

Water pressure gauge 0 to 10 kg / sqcm, 100mm dia dial needle round fixed on discharge line of centrifugal pump as in repairs complete all as specified and directed by Engineer - in - Charge.

Taking down existing flat submersible cable and provision of flat PVC Insulated and PVC sheathed industrial submersible water proof cable for submersible pump motors 650/1100 volts grade, connected with necessary ferrules / water proof joint of the following sizes complete all as specified and as directed.

(a) 3 core 6 sqmm

(b) 3 core 4 sqmm

Epoxy type cable jointing kit with all jointing material, ferrule for flat submersible copper conductor cable 3 core, 16/10/6/4 sqmm complete all as specified and as directed.

Direct on-line starter, three phase, 415 Volts, 50 hz, relay rating 9 to 14 Amps, suitable for pumpsets upto 7.5 HP capacity, in sheet metal enclosure of IP-54 protection as in repairs complete all as specified and as directed.

Water level indicator with alarm system, electrically operated switch fitted in pump house and display board on wall as in repairs complete all as specified and as directed.

Water flow meter, flanged type, 100mm dia, brass, PN 16 with dial as in repairs complete all as specified and as directed.

Taking down old cable and provision of flexible ABC Conductor, 1100 Volt , PVC Type D Insulated, Cores laid up, Overall Shielded by Al-mylar along with ATC drain wire and Overall PVC Type ST-3 Sheathed Cable of size 4 core 2.5 sqmm complete all as specified and as directed.

Servicing of water level indicator system of over head reservoir and under ground sump to make in functional, replacing wornout / unserviceable components such as vertical type mild steel sheet metal board duly marked in paint indicating in meter / feet fixed to wall / surface of existing UG sump and OHT at required height, self weighted float and multistranded steel rope, rotating mild steel pulleys - 02 Nos as per capacity of UG sump and OHT complete all as specified and as directed.

Servicing of solar water heating system, 200 LPD, including solar panel, cold water tank, hot water tank etc to make it functional including all replacing of parts as required complete all as specified and as directed.

Sprinkler gear driven rotary type, capable of covering 43 feet to 75 feet (13.1m to 22.9m) radius at nozzle pressure of 40 to 90 psi (280 kPa to 620 kPa) with a discharge rate of 5.9 to 32.5 GPM (22.3 to 123.0 LPM) with stainless steel riser as in repairs complete all as specified and as directed.

(a) The product shall be provided with a 5 year manufacturer warranty.

(b) The product shall be of Model No.14053 SS of K Rain or equivalent of makes as approved by GE.

Repairs to existing 80mm HDPE pipe and tapping for GI pipe, 40mm bore of pipe with all accessories as required to make it functional and leak proof in any location complete all as specified and as directed by Engineer-in-Charge.

SCH "A" PART-III (REPAIRS TO DG SETS AND BATTERIES)

Servicing of DG set of capacity 82.5 kVA, including complete oil servicing, including servicing all parts including change of engine oil to full quantity, change of coolant to required level (1 litre approximately), change of oil filter (spain-on type) - 02 Nos, fuel pre-filter, air filter, air cleaner safety element and consumables such as cotton waste, grease, cleaning liquids etc all as per manufacturers manual , work carried out by authorised service provider complete all as specified and as directed.

Servicing of DG set of capacity 62.5 kVA, including complete oil servicing, including servicing all parts including change of engine oil to full quantity, change of coolant to required level (1 litre approximately), change of oil filter (spain-on type) - 02 Nos, fuel pre-filter, air filter, air cleaner safety element and consumables such as cotton waste, grease, cleaning liquids etc all as per manufacturers manual , work carried out by authorised service provider complete all as specified and as directed.

Servicing of DG set of capacity 40.0 kVA, including complete oil servicing, including servicing all parts including change of engine oil to full quantity, change of coolant to required level (1 litre approximately), change of oil filter (spain-on type) - 02 Nos, fuel pre-filter, air filter, air cleaner safety element and consumables such as cotton waste, grease, cleaning liquids etc all as per manufacturers manual , work carried out by authorised service provider with a guarantee of six months complete all as specified and as directed.

Servicing of DG set of capacity 15 kVA, including complete oil servicing, including servicing all parts including change of engine oil to full quantity, change of coolant to required level (1 litre approximately), change of oil filter (spain-on type) - 02 Nos, fuel pre-filter, air filter, air cleaner safety element and consumables such as cotton waste, grease, cleaning liquids etc all as per manufacturers manual, work carried out by authorised service provider complete all as specified and as directed.

Servicing of DG set of capacity 12.5 kVA , including complete oil servicing, including servicing all parts including change of engine oil to full quantity, change of coolant to required level (1 litre approximately), change of oil filter (spain-on type) - 02 Nos, fuel pre-filter, air filter, air cleaner safety element, Auto On/Off, Alarm, Battery charging and consumables such as cotton waste, grease, cleaning liquids etc all as per manufacturers manual , work carried out by authorised service provider complete all as specified and as directed.

Dismantling of self starter of any make from diesel engines of any make, opening up, servicing including replacement of armature coils, bushes, carbon brushes, springs, screws etc., assembling back, re-fixing and testing for DG sets of 40 kVA / 62.5 kVA capacity complete all as specified and as directed.

"V" belt for fan / dynamo / water pumps for DG sets of capacity 62.5 kVA complete all as specified and as directed.

Calibration charges of fuel pump and fuel injectors for DG sets of capacity upto 82.5 kVA complete all as specified and as directed.

Automatic voltage stabiliser, 415 Volts, 3 Phase, 1500 RPM, 50 Hz of armature of DG set of capacity upto 82.5 kVA as in repairs complete all as specified and as directed.

Asbestos rope 10mm dia wound on exhaust pipe as in repairs complete all as specified and as directed.

Preparation of surface by removing dust / rust / old paint etc by rubbing and cleaning, tinkering, applying metal putty wherever necessary and painting with one coat of synthetic enamel paint by spray painting of the DG set of any make / model / capacity complete all as specified and as directed.

PVC insulated, flexible copper conductors of size single core multistranded 50 sqmm cable as battery lead suitable for 12/24 volts batteries complete all as specified and as directed.

Battery terminal clamp / socket with bolts and nuts, brass suitable for copper conductors of size single core multistranded 50 sqmm cable and 12 V, 180 AH battery terminal posts complete all as specified and as directed.

PVC transparent pipe 8mm bore of dia and 2 mm thick connecting up for fuel inlet / overflow links, fuel tank, fuel indicator complete all as specified and as directed.

Dismantling battery, replacing unserviceable terminal posts, PVC cap, recharging the battery to the required standard by replacing the electrolyte for 12 V, 180 AH battery complete all as specified and as directed.

SCH "A" PART-IV (CLEANING OF OHT AND SUMPS AND DISILTING OF OPENWELLS)

Draining out all water from Over Head Tank any height / staging, cleaning the internal surfaces by scrapping down / brushing and removing all silt, dirt, algae etc from walls, floors, washing / cleaning with water and bleaching powder and applying one coat of white wash to all internal surfaces of floor, walls and ceilings, preparing old steel surfaces and applying one coat of anti corrosive bituminous paint, such as on vent pipes, inlet, outlet pipes, ladder and one coat of synthetic enamel paint to MS pipe railing of the following capacities complete all as directed by Engineer-in-charge.

(a) Rate quoted is deemed to include painting to obliterate labels using black paint same as existing dimensions and writing particulars etc using white paint with height of letters same as existing writing

(b) The contractor shall provide all mandatory safety and precautionary measures for the labour to work in heights, enclosed spaces and prevent asphyxiation.

(c) Digital photographic record of work carried out for each OHT shall be kept on record and printout made part of Final Bill.

(d) All dirt, muck and growth removed during cleaning shall be disposed off away from MD land.

(e) The contractor may use mechanical machinery in the cleaning process. However nothing extra shall be paid for the same.

(i) 3000 gallons capacity

(ii) 20000 gallons capacity

(iii) 50000 gallons capacity

(iv) 75000 gallons capacity

Pumpout out all water from Under ground sump / storage tank / flood water storage sumps, cleaning the internal surfaces of by scrapping down / brushing and removing all silt, dirt, algae etc from walls, floors, washing / cleaning with water and bleaching powder and applying one coat of white wash to all internal surfaces of floor, walls and ceilings and one coat of cement base paint to all external surfaces including top surfaces of OH tanks and including preparing old steel surfaces and applying one coat of anti corrosive bituminous paint on all old steel surfaces such as vent pipes, inlet, outlet pipes, ladder of the following capacities complete all as directed by Engineer-in-charge.

(a) Rate quoted is deemed to include painting to obliterate labels using black paint same as existing dimensions and writing particulars etc using white paint with height of letters same as existing writing and painting of hash markings of water level indicator.

(b) The contractor shall provide all mandatory safety and precautionary measures for the labour to work in enclosed spaces and prevent asphyxiation.

(c) Digital photographic record of work carried out for each sump shall be maintained and printout made part of Final Bill.

(d) All dirt, muck and growth removed during cleaning shall be disposed off away from MD land.

(e) The contractor may use mechanical machinery in the cleaning process. However nothing extra shall be paid for the same.

(i) 3000 gallons capacity

(ii) 10000 gallons capacity

(iii) 20000 gallons capacity

(iv) 50000 gallons capacity

Desilting of open / shallow wells by bailing out of water from the well by using pumpset, removing of silt (mud / sand etc) from the floor of the wells and depositing at a distance not less than 50m, cleaning the internal vertical surface of well with wire brushes, removing of plants, moss and algae growth and floating algae growth on the water, well of diameter 30 feet to 33 feet and depth 40 to 48 feet complete all as directed by Engineer-in-charge.

(a) Rate quoted is deemed to include painting to obliterate labels using black paint same as existing dimensions and writing particulars etc using white paint with height of letters same as existing writing.

(b) The contractor shall provide all mandatory safety and precautionary measures for the labour to work in enclosed spaces and prevent asphyxiation.

(c) Digital photographic record of desilting work carried out for each openwell shall be kept on record and printout made part of Final Bill.

(d) All dirt, muck and growth removed during desilting shall be disposed off away from MD land.

Preparation of steel surfaces by removing dust / rust / old paint etc by rubbing and cleaning, tinkering, applying metal putty wherever necessary and painting with two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer, as on manhole covers of sumps size 800mm x 800mm complete all as specified and as directed.

M/S.RANGA AND CO