Rate Contract for Construction and commissioning of Tube wells in Alluvium Strata under City Division Jaisalmer and District Division Jaisalmer

PHED REVISED BSR 2023-24 ITEMS

Chapter-2 Construction and Commissioning of Tube wells, Open Wells & Hand Pumps.

2.1 Construction of tube well from ground level & up to 100 mtr depth to accommodate housing and assembly pipe of following sizes in all type of alluvium strata unconsolidated formation such as pebbles, boulders etc. by percussion/rotary drilling method as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended up to date) and technical specifications, with gravel as per IS:4097-1967 and it's packing as per IS: 2800 (Part I & II) 1979 as amended up to date (the work includes the cost of gravel & it's primary packing and packing during development, lowering of housing & strainer assembly pipes with supply and wrapping of coir-rope, wherever necessary for arresting fine sand particles and development work, but excluding the cost of housing and strainer pipe assembly). The work would be completed after obtaining sand free water.

2.1.2 Nominal bore 200 mm dia.

2.1.3 Nominal bore 250 mm dia.

2.1.4 Add 15% extra on above item (Item no 2.1.1 to 2.1.3) for drilling depth beyond 100 mtr and upto 200 mtr, rate shall be applicable for only extra depth beyond 100 mtr and up to 200 mtr.

2.2.1 Nominal bore 200 mm dia.

2.2.1 Nominal bore 250 mm dia.

2.1.5 Add 40% extra on above item (Item no 2.1.1 to 2.1.3) for drilling depth beyond 200 mtr, rate shall be applicable for only extra depth beyond 200 mtr .

2.3.1 Nominal bore 200 mm dia.

2.3.2 Nominal bore 250 mm dia.

2.8 Testing verticality of tube well by plumbing system and yield test and draw down test by pumping system as per IS : 2800 (Part - II) - 1979 as amended up to date.

2.9 Supplying & Packing P-gravel suitable for slot size/mesh size as suggested in IS 2800 (Part-I) 1991 with latest amendment.

2.10 Development of tube well as per IS: 11189- 1985 and IS: 2800 (Part- 1)- 1991 (both amended up to date) using suitable compressor to give sand free water for required yield of the gravel packed tube well.

2.11 Supply of ERW M.S. black casing pipe ISI marked (IS: 4270/2001) or amended up to date of following sizes

2.11.2 200 mm dia NB (Thickness of pipe 5.4mm & mass of tube 28.46 Kg/m)

2.11.3 250 mm dia NB (Thicknee of pipe 7.1 mm & mass of tube 46.57 Kg/m)

2.12 Labour charges for making slots on blank pipes made of ERW MS black pipe ISI marked of following sizes, the slotting should be as per IS:8 I 10- 2000 or as amended up to date.

2.12.3 200 mm dia nominal bore of 5.4 mm thickness

2.12.4 250 mm dia nominal bore of 7. I mm thickness

2.35 Supply of ISi mark AC pressure pipe class 15 manufactured by MAZZA process as per IS-1592-2003 or amended upto date, for casing of tube well for following dia nominal bore, with jointing material PVC coupler as per Technical Specification and direction of Engineer In charge.

2.35.3 200 mm niminal dia

2.35.4 250 mm niminal dia

2.36 Making slots of hole size and Nos. as directed by EIC in AC pressure pipe Class 15 as per Technical specification for using slotted pipe in TW casing.

2.34 Providing and Lowering of ISI mark PVC-U casing and screen pipe as per IS : 12818 : 2010 or amended upto date having pipe thickness as per IS code suitable for TW and DCB with threading , winding with superior quality of plastic mesh & rope in three layers with end cap complete as per technical specification and direction of Engineer In charge.

2.34.1 Shallow well casing pipe (CS) suitable for depth up to 80 mtr.

2.34.1.2 200 mm nominal dia ( internal dia ).

2.34.2.3 250 mm nominal dia ( internal dia ).

2.34.2 Medium well casing pipe (CM) suitable for depth above 80 mtr and up to 250 mtr.

2.34.2.4 200 mm nominal dia ( internal dia ).

2.34.2.5 250 mm nominal dia ( internal dia ).

2.13 Providing & laying ISi marked GI Pipe '·A class as per IS: 1239 for casing pipe for submersible cable external work 40 mm dia complete in all respect.

2.7 Deepening of existing tube well by DTH system beyond existing depth upto 100 mtr. and above in all type of rocks including flushing of tube well and obtaining sand free water.

Nominal bore 150 mm dia.

Nominal bore 200 mm dia.

2.14 Supply & Installation of single phase ISI marked submersible motor pump set of three star or better rating of BEE and as per IS: 8034-2018 (pump) and IS 9283-2013 (motor) or as amended up to date of approved make of following duty condition with required accessories including making connection suitable for tube well/DCB. The job includes lowering of motor pump, installation of complete fitting & accessories, jointing of electrical cables up to switch board, testing of submersible pump set and interconnection up to water mains, complete in all respect.

2.14.1 Up to 2.0 KW

2.14.2 Above 2.0 KW

2.15 Supply & Installation of 3 phase ISi marked submersible motor pump set of five star rating by BEE and as per JS: 8034-2011 (pump) and IS 9283-2013 (motor) or amended up to date of approved make of following duty condition with required accessories including making connection suitable for tube well/DCB. The job includes lowering of motor pump, installation of complete fitting & accessories, jointing of electrical cables up to switch board, testing of submersible pump set and interconnection up to water mains, complete in all respect.

2.15.1 Up to 5.5 KW (7.5 HP) & head up to 120 mtr.

2.15.2 Up to 5.5 KW (7.5 HP) & head above 120 mtr.

2.15.3 7.5 KW (JO HP) & head up to 120 mtr.

2.15.4 7.5 KW (10 HP) & head above 120 mtr.

2.15.5 9.3 KW ( 12.5 HP) & head up to 120 mtr.

2.15.6 9.3 KW (12.5 HP) & head above 120 mtr.

2.15.7 11 KW (15 HP) & head up to 120 mtr.

2.15.8 11 KW (IS HP) & head above 120 mtr.

2.15.9 13 KW (17.5 HP) & head up to 120 rntr.

2.15.10 13 KW (17.5 HP) & head above 120 mtr.

2.15.11 15 KW (20 HP) and above, head up to 120 mtr.

2.15.12 15 KW (20 HP) and above, head above 120 mtr.

2.16 Supply and Fixing of Electric feeder panel (having projected canopy)for submersible pump set Single phase upto 5 HP, comprising of DOL Starter, MCB, Indicating Light, Ammeter, Volt meter, connection plate, condensers of approved make and the panel enclosure should be made out from 18 gauge M.S. Sheet with powder coating. Panel size Height 600 mm Width 500 mm depth 250 mm with Stand ( made of angle iron of size 35x35x5mm) duly bolted/screwed with enclosure box having 4 legs, each leg’s length 18" and double door including in built locking system. The legs should be embedded in M-15 cement concrete platform. The size of CC platform should be equal or bigger than the base size of panel having height of at least 200 mm from ground level. The operation of panel should be suitable for on 240 Volt AC Supply.

2.17 Supply and Fixing of electric control feeder panel comprising of suitable rating MCCB, DOL starter, overload relay, ampere meter, volt meter, phase preventer, phase indicators, lighting arrangement etc complete suitable for three phase pump set. The panel should have space for energy meter ( supplied by DISCOM). All these equipments shall be housed by panel box made out from 18 gauge M.S. Sheet with powder coating. Panel should be of minimum size 900 x 600 x 300mm with Stand ( made of angle iron of size 35x35x5mm) duly bolted/screwed with enclosure box having 4 legs, each leg’s length 18" and double door including in built locking system. The legs should be embedded in M-15 cement concrete platform. The size of CC platform should be equal or bigger than the base size of panel having height of at least 200 mm from ground level. The panel should have opening of suitable size in front of space for energy meter with glass for meter reading. The operation of panel should be suitable for on 440 Volt AC Supply.

2.17.1 Up to 5.00 HP

2.18 Supply and Fixing of electric control feeder panel comprising of suitable rating MCCB , fully automatic star-delta starter, over load relay, ampere meter with CTs, volt meter, phase preventor, suitable starting capacitors, phase indicators, lighting arrangement etc complete suitable for three phase pump set. The panel should have space for energy meter (supplied by DISCOM). All these equipments shall be housed by panel box made out from 18 guage M.S. Sheet with powder coating. Panel should be of minimum size 900 x 600 x 450 mm with Stand ( made of angle iron of size 35x35x5mm) duly bolted/screwed with enclosure box having 4 legs, each leg's length 18" and double door including in built locking system. The legs should be embedded in M-15 cement concrete plat form.The size of CC plateform should be equal or bigger than the base size of panel having height of at least 200 mm from ground level. The panel should have opening of suitable size in front of space for energy meter with glass for meter reading. The operation of panel should be suitable for on 440 Volt AC Supply.

Above 5 HP and up to 10 HP

Above 10 HP and up to 15 HP

Above 15 HP and up to 20 HP

Above 20 HP and up to 30 HP

2.19 Supply & Fixing of ISi marked three core PVC flat submersible cable as per IS 694: 1990 or amended up to date and conductor as per class 5 of IS 8 130: 1980 includ ing making connection etc.

2.19.1 3 core 4.0 mm2

2.19.2 3 core 6.0 mm2

2.19.3 3 core 10.0 mm2

2.19.4 3 core 16.0 mm2

2.20 Supply & Fixing XLPE insulated / P.V.C. sheathed cable of 1.1 KV grade with aluminium conductor Armoured of IS:7098-I/1554-1 approved make in ground as per IS:1255 including excavation of 30cmx75cm size trench, 25 cm thick under layer of sand, second Class bricks covering, refilling earth, compaction of earth, making necessary connection, testing etc. as required of size.

2.20.1 10.0 Sq.mm, 4 core

2.20.2 16.0 Sq.mm, 4 core

2.20.3 25.0 Sq.mm, 3.5 core

2.20.4 35.0 Sq.mm, 3.5 core

2.21, Plate Earthing as per IS 3043 with G.I. Earthplate 600x600x6mm thick by embodying 3 to 4mtr. below the ground level with 20mm dia GI B class watering pipe including all accessories like nut, bolts, reducer, nipple, wire meshed funnel and CC finished chamber covered with hinged type with locking arrangement C.I. cover, C.I. frame of size 300 x 300mm complete with alternate layers of salt and coke/ charcoal, testing of earth resistance as required

2.22 S&F M.S. Clamps set of 50x12 mm flat iron with nuts and bolts etc. for holding the riser pipe assembly of submersible pump set.

2.23 Supply & Fixing tube well cover of MS sheet 8mm thick at top & Smm thick 100 mm wide shroud around the edge so as to form a cap on the top end of casing pipe with GI Nipple 45cm long & two GI flanges at both end in 80mm sizes passing through a hole in the centre of MS sheet. A 25mm socket with end plug shall also be welded over top plate (as per drawillg enclosed). A GI nipple having outside thread of size 1/2" (for installation pressure gauge) shall tie provided & welded with 80mm GI nipple near top plate nipple shall be provided with end plug.

2.23.2 150 mm dia

2.23.3 200 mm dia

2.23.4 250 mm dia

2.24 Providing & Lowering in tubewell ISl marked GI Pipe "B" class as per IS: 1239 Part I 2004 or amended up to date threaded and double flanged (welded) on both ends and two number 25x3mm flat welded on both ends between pipe & flange, rubber washer & nut bolts etc. complete in all respect.

2.24.1 32 mm dia

2.24.2 50 mm dia

2.24.3 65 mm dia

2.24.4 80 mm dia

2.25 Providing & Lowering in tube well ISI marked HDPE pipe as per IS 4984:1995 or amended upto date in PE 80 grade and class PN 10 of following dia. including HDPE/GI fittings and PVC rope confirming to IS 5175:1992 or amended upto date, along with clamping of submersible cable etc. complete in all respect.

2.25.2 50 mm dia

2.25.3 63 mm dia

2.25.4 75 mm dia

2.25.5 90 mm dia

2.26 Providing, installing, testing and commissioning of double flanged bulk flow meter with removable mechanism, of class B conforming to ISO 406411 or amended upto date of approved make including cost of all material and labour as per specifications with GI Box (sheet 16 SWG) suitable with locking arrangement of following dia.

2.26.1 50 mm dia

2.26.2 65 mm dia

2.26.3 80 mm dia

2.27 Providing & Fixing pump safety cage as per specifications or as directed by Engineer in charge.

2.28 Providing and Fixing of ISI marked PVC storage tank of following capacity as per IS: 12701-1989 (of approved make) with cover, 25 mm dia. 1 mtr long GI overflow pipe, 25 cm long 25 mm dia washout GI pipe with plug & socket, including P&F 32 mm dia Ball Cock (Float valve) IS 1703 marked with rod and PVC ball complete with brass weight 1000 gm, including P&F 15mm dia CI quarter turn heavy duty Bib Cocks four nos of superior quality and approved make, including interconnections complete job.

1000 litres capacity

2000 litres capacity

2.29 Fabrication & Fixing M.S. Stand of specified class of angle iron L-shaped of 50 mm size with four legs grouted by 300*300*300 mm CC Block M-15 in the ground and all legs tied up with each other through same size of angle iron along with cross bars to support the bottom of 1000 Ltr./ 2000 Ltr. PVC tank complete in all respect.

2.30 Providing & Fixing of double flanged, Cl body, ISI marked NRV of approved make of following sizes

2.31 Proving and Fixing 32 mm dia Full way valve or wheel valve as per IS:778 or amended up to date of approved make, on pump delivery pipe.

2.32 Supplying & Installing 100 mm diameter sealed diaphragm bourdon type pressure gauge of range 0 to10 kg. including all jointing material as per specification with safety cover.

Chapter 1 Pipe line work

1.1 Providing, lowering, laying in trenches, aligning, fixing in position and jointing Ductile Iron (DI) ISI marked K-7 grade S&S pipes as per IS:8329-2000 (amended upto date), with internal cement mortar lining suitable for potable water with rubber ring (EPDM) joints as per IS: 5382-1985 including all taxes (Central and local), transportation and freight charges, inspection charges, loading/ unloading charges, including cost of labour and material, specials (Tee, bend etc.) satisfactory hydraulic testing, disinfection etc. complete as per technical specifications and direction of Engineer-in-charge. (excluding earth work) Note : Providing and fixing of all requisite specials as per drawing, design and layout are inclusive in RM measurement of the item and shall not be paid separately.

1.1.2 100 mm dia

1.3 Providing, lowering, laying, aligning, fixing in position and jointing at all level/ depths DI standard specials with rubber ring (EPDM)/ nut bolt and insertion sheet and jointing as per IS: 9523-2000 or as amended up to date, such as tees, bends, tapers, caps etc. within trenches in DI pipe line complete including all material, labour, taxes, testing and commissioning along with pipe line as per technical specifications and direction of Engineer-in-charge (excluding earth work).

A/S Tee , Bend, Reducer (All End Socketed)

1.3.1.1 Upto 300 mm Diameter

1.3.3.1Single flange/MJ Collar

1.3.2.1 Upto 300 mm Diameter

1.3.2 A/F Tee , Bend, Reducer (All End Flanged)

1.3.2.1 Upto 300 mm Diameter

1.4 Providing, lowering, laying and jointing in trenches, standard lengths HDPE ISI marked Pipes as per IS-4984: 1995 (amended upto date) with necessary jointing material like mechanical connectors, i.e. thread/ insert joint/ quick release coupler joint/ compression fitting joint or flanged joint and specials jointing pipe by electro fusion welding method, including all taxes , transportation and freight charges, inspection charges, loading/ unloading charges, stacking of pipes, including cost of labour and material, specials (Tee, bend etc.), satisfactory hydraulic testing, disinfection etc. complete as per technical specifications and direction of Engineer-in-charge of following class and diameter. (excluding earth work) . Note : Providing and fixing of all requisite specials as per drawing, design and layout are inclusive in RM measurement of the item and shall not be paid separately. Supply may be in coil or straight length in 6 M/12 M. PE-80 PN-6

1.4.1.2 90 mm dia

1.4.1.3 110 mm dia

1.11 .Providing and fixing of flanged/ plain ended MS Specials made from MS sheet strips of relevant IS specification of approved thickness by welding, lowering, laying, aligning, fixing in position at all level/ depths in trenches complete including all taxes, material, labour, inside lining, outside coating, testing and commissioning along with pipe line as per technical specifications and direction of Engineer-in-charge.

1.11.1 MS pipe specials upto 600 mm dia (with minimum 5.0 mm thickness sheet)

Chapter- 4 Earth work, Road cutting, repairing & trenchless laying

4.1 Earth work in excavation by mechanical means (Hydraulic Excavator )/ manual means in trenches of required width and gradient for laying and jointing of pipe line including excavation for sockets, and dressing of sides, ramming of bottoms, depth up to 1.5 Mtr. including taking out the excavated soil, and then returning the soil as required in layers not exceeding 20cm in depth including consolidating each deposited layer by ramming, watering etc. and disposal of surplus excavated soil as directed within a lead of 50 Mtr. including required all safety provisions etc.: All kinds of soil

Earth work in excavation by mechanical means (Hydraulic Excavator )/ manual means in trenches of required width and gradient for laying and jointing of pipe line including excavation for sockets, and dressing of sides, ramming of bottoms, depth up to 1.5 Mtr. including taking out the excavated soil, and then returning the soil as required in layers not exceeding 20cm in depth including consolidating each deposited layer by ramming, watering etc. and stacking serviceable material for measurements and disposal of unserviceable material as directed, with in a lead of 50 Mtr. including all safety provisions required .:

Ordinary rock

Hard rock (requiring blasting)

Hard rock(blasting prohibited)

Chapter- 6 VALVES AND APPURTENANCE

6.1 Providing, lowering, aligning, fixing in position in pipe line, CI D/F Sluice valves of approved make of following Pressure rating & dia complete, confirming to IS:14846 (amended up to date) and of following specifications: Body, Bonnet, Wedge, Gland, Thrust Plate, Cap & Hand wheel of Grey cast iron of IS:210/ FG200 Stem - SS 304 ,Body Seat ring, Wedge facing ring & Bushes - LTB2/ SS , Face to face dimensions as per IS 14846/2000 (amended up to date), All exposed machined ferrous surfaces shall be painted with one coat of aluminium red oxide primer conforming to IS:5660 and two coats of black Japan paint conforming toType B of IS 341or paint conforming to IS9862 or IS2932( Non-Toxic- suitable for drinking water) applied inside and outside, Flanges Drilled as per IS 1538.Nut-Bolt confirming to IS:1363 and IS: 1367/ CS/ galvanised steel.Insersion rubber of black EPDM 6mm thick . Suitable support structure as per directions of EIC. Sluice valves including all jointing & jointing material, labour, testing and commissioning along with pipe line as per Technical Specifications and as per direction of Engineer-in-charge.

6.1.1 Manually Operated CI Sluice valve of Class PN-1.0

PHED O&M BSR 2020 Providing and fixing unplasticised - PVC moulded coupler (for jointing AC Pipe provided by department) conforming to IS : 13592 type A including jointing with seal ring conforming to IS : 5283 as per IS-1592-2003 or amended upto date, for casing of tube well for following dia nominal bore, as per Technical Specification and direction of Engineer In charge.

200 mm dia

250 mm dia

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