ADDN AND ALTN AND RENOVATION TO FILTRATION PLANT AT NDA KHADAKWASLA

Amount

Excavation in trenches in soft / loose soil not exceeding 1.5 metre wide and not exc 1.5 metre in depth and getting out for taking out / laying of pipes and making bottom surfaces of excavation leveled.

Ditto all as per item No 1 above but additional depth exc 1.5 mtr and not exc 3.0 mtr beyond the first 1.5mtr

Returning, filling in trenches with excavated soil including spreading, levelling, watering and well ramming in layers not exceeding 25 cm complete all as directed

Removing surplus soil / spoil to a distance not exceeding 50 metre away and depositing where directed at a level not exceeding 1.5 metre above the starting point all as directed

M&L for making hole of upto 300mm dia and 600mm depth in existing Stone masonry wall (core cutting) by using wall chaser Machine of suitable size including making good to disturbed surface complete all as to match with existing specificaion and complete all as directed.

M&L for MS Black Pipe including Special fitting of IS 1239 and thickness not less than 10mm fittings any type spigot and socket ends or flanged pipe as required at site (such as bend, taper, Tee, flange, socket etc) Socket end/ flanged as ordered of any size from 150mm to 1000mm as required at site. Make : Jindal/ Tata Note: (i) The weight of the fittings shall be measured and paid as given in relevant IS or actually provided which ever is less. (ii) All fittings shall bear relevant IS stamping marking. (iii) Excavation and earth work shall be measured and paid separately. (iv) Cost of the joints and jointing materials shall be deemed to be included in the quoted rate.

M&L for valve pit chamber with 230 mm thick brick wall in CM (1:6) 75 mm thick coping with PCC (1:2:4) type B1, 15 mm thick plaster work in CM (1:4) over all internal and external wall with white wash of both surface and MS sheet cover of suitable thickness for Valve Pit Chember of size 2000x2000x2000 mm with hinges, equal angle iron frame and necessary locking arrangement painting of synthetic Enamel paint over coat of red oxide primer on MS Plate including excavation & earthwork in any type of removal of all debris complete all as specified and directed .

M&L for groove under drain system made up of PP fitted UPVC pipe of 3" groove screen having slot of 200/500 micron with 11 to 12 % open area,base pipe of lateral 3" dia of UPVC SCH 40 material, tee for manifold with fixed one end and T to other end lateral connection, air nipple between T of lateral & air header with coupler, embedded with M- 25 concrete complete all as directed.

M&L for apply the primer two coat of polyalk EP and cement slurry as per ration 2:1 by weight mix thoroughly perferably using a mechanical mixer , fill the racks/hony combed with polymer modified morter ,repair all construction joint area and debonded surface with polymer modified morter, make water proof fillet (WATTA) at the junction of horizontal slab and vertical wall all arond, fill the gape around periferi of outlet/inlet pipe using polymer modified mortor Slurry of consistency easily applicable by brush is ready for use as a bonding materials. Apply the bonding coat on the cleaned RCC surface by brush taking care to avoid pinholes. finish the surface as per instruction of water proofing expert and including necessary CM (1:2) on internal side of Filteration bed having storage capacity of 25 Gallons of water (Approx Inner Surface area 65 Sqmtr) complete all as directed. Note : This Job Will be carried out after execution of item N0 11& 13 and before item No 12 of this BOQ.

M&L for apply the three coat of polyalk WP and cement slurry as per ration 1:1 by weight mix thoroughly perferably using a mechanical mixer . Slurry of consistency easily applicable by brush is ready for use as a bonding materials. Apply the bonding coat on the cleaned RCC surface by brush taking care to avoid pinholes, necessary to sandwich the cured coating of PLYALK WP with a screed layer,test conducted on a concrete cube coated with POLYALK WP cement slurry as per DIN 1048, confirms to flexiblility and adhession test as per IS 10.1, finish the surface with one coat of epoxy paint and as per instruction of water proofing expert and test conducted on internal side of Filteration bed having storage capacity of 25 Gallons of water (Approx Inner Surface area 65 Sqmtr) Note : (i) after first coat apply two more coats of similar slurry at 24 hrs intervals (ii) Allow to set for 48 hours (iii) Cure the coating for 7 days by springing water three times a day on the vertical surface and by moist gunny bags on the horizontal surface.(iv) Filling the water in above said UG sump up to full tank & keeping it for 48hrs under observation aftertreatment of whole surface in the Sump.

Providing services for removal of Filter Bed Media (Gravel & Sand) from Filter Bed of Size 6.5 x 4.5 mtr upto 1.5 mtr in depth as per existing arrengement and as per standerd practices as mentioned below within the stipuilated time period by employing suitable no of labour with necessary tool and plant to complete work on or before the stipulated time including cleaing of filter bed media (Gravels only) with fresh/clean water till complete removal of tiny dirt deposite on gravel and make it suitabel to reuse and proper segragation Gravels and sand for taking down old cracked tiles complete all as directed. A) Existing Layer of Media: 1) First Layer with Gravels of size 40mm size upto 300mm at the bottom of Bed. 2) Second Layer with Gravels of 30mm size upto 300mm above the first layer. 3) Third layer with Gravels of 20mm size upto 300mm above the second layer. 4) Forth layer with sand 0.35-0.5mm size upto 600mm aobe the third Layer. Note : 1) One bed will be handed over at one time to complete said Job. 2) Contractor is responsible to complete the said job within stipulated time period of shutdown by deploying sufficient labour at a time.

Providing services for refilling ( Loose) of Filter Bed Media (Old Gravel and Quartz sand) inside Filter Bed of Size 6.5 x 4.5 mtr upto 1.5 mtr in depth as per existing arrengement and as per standerd practices as mentioned below within the stipuilated time period by employing suitable no of labour with necessary tool and plant to complete work on or before the stipulated time after fixing new tiles inside bed complete all as directed A) Laying of Media: (i) First Layer with Gravels of size 40mm size upto 300mm at the bottom of Bed. (Old Gravel retrieved from Item No 14 above) (ii) Second Layer with Gravels of 30mm size upto 300mm above the first layer. (Old Gravel retrieved from Item No 14 above) (iii) Third layer with Gravels of 20mm size upto 300mm above the second layer. (Old Gravel retrieved from Item No 14 above) (iv) Forth layer with sand 0.35-0.5mm size upto 600mm aobe the third Layer.Providing services for all as directed. Note : 1) One bed will be handed over at one time to complete said Job. 2) Contractor is responsible to complete the said job within stipulated time period of shutdown by deploying sufficient labour at a time.

M&L for glazed ceramic white tiles in vertical surface 450X 350X 7mm thick set and jointed in neat cement slurry and pointed in white or colour cement to match including taking down old one.

M & Labour for valve pit chamber with 230 mm thick brick wall in CM (1:6) 75 mm thick coping with PCC (1:2:4) type B1, 15 mm thick plaster work in CM (1:4) over all internal and external wall with white wash of both surface and MS sheet cover of suitable thickness for Valve Pit Chember of size 1200x1200x1500 mm with hinges, equal angle iron frame and necessary locking arrangement painting of synthetic Enamel paint over coat of red oxide primer on MS Plate including excavation & earthwork & removal of all debris complete all as specified and directed .

M&L for machine pressed precast concrete interlocking paver block any shape and size confirming to IS 15658-2006 of 60 mm thickness, M-35 Grade With Grey Cement andv pigment complete all as directed.

M&L for precast cement concrete (1:3:6) type C-1 (using 20mm graded aggregate) block massonry with sollid block exc 10cm thick in width and setting in cement mortar 1:6 complete in wall complete all as specified.

S&F butterfly valve (wafer type) class PN 1.6 150mm, ISI marked with SG Iron Disc Lever Operatted Nitrile/ EPDM rubber lining Seat Test Pressure 1.6MPa (Hyd) including tail piece of 150mm dia MS Pipe with flange, necessary welding work to all minor fixing arrengement complete all as directed. Make Zoloto Atr No 1078 or equivalent in Kartar/ Packs

S&F butterfly valve (wafer type) class PN 1.6 300mm, ISI marked with SG Iron Disc Gear Operatted Nitrile/ EPDM rubber lining Seat Test Pressure 1.6MPa (Hyd)including tail piece of 300mm dia MS Pipe with flange, necessary welding work to all minor fixing arrengement complete all as directed. Make Zoloto Atr No 1078A or equivalent in Kartar/ Packs

S&F Centrifugal Pumpset 15HP,Three Phase , 50Hz, discharge range 2208 LPM at Head 20M with S/D pipe size of 100x 100mm including all necessary accesosories and fixing arrengement with foundation and MS Chanel frame work with mounting Padcomplete all as directed : Make Kirloskar Model KDS 1537+ or equivalent in CG/ Havells

S&F Pressure Sand Filter for flow rate of 100 cubic Meter/ hr made up of MS with internal epoxy paint and external synthetic enamel paint with and including Multi grade sand Media and Pebbles as filter media, dia of vessel upto 3000mm, Height of shell 2500mm shell thickness 10mm Dish Thickness 12mm, Design Pressure 6kg/ CM square, working Pressure 2.5 to 3 Kg/CM square, supporting No of legs 4, Lifting Legs 2 Nos, Inlet/Outlet Nozzles 6" ANSI B 16.2 Slip On Flanges, Air Vent 1.5" ANSI B 16.2 Slip On Flanges, Drain 4" ANSI B 16.2 Slip On Flanges, 2 Nos Manholes, 2 Nos Pressure Gauge range 0-10kg/CM square,150mm CI Butterfly control valve (wafer Type) 6" MS Frontal Line with all necessary accessories and fixing arregement complete all as directed.

M&L for pre painted galvalume aluminum zinc coating GI based corrugated steel sheet 0.50mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall fixed with self tapping screws as specified and directed

M&L for mild steel rolled section connected with each other with welding (angle, tee, channel, beam, hollow sections etc) as in main and cross beams, hip verticle hollow sections and jack rafters, purlins where connected to common rafters and running rils where verticle suctions and fixed in welded in wallsin wall surface with plates and other verticle sections are fixed in ground level embedded in concrete fixed and horizontal sections fixed in wall with bolt completly, fixed with angle, cleats or other connecting plates conforming to Gde Fe -410-W (Gde E-250) quality-B complete all as specified and directed

Ditto all as per item No 22 above but plates (plain or chequered channels, square cut or notched (ordinary and counter sunk) forming holes, without any attchement

M&L for painting to new or un-treated steel surface over 10cm width or girth with two coats of syntetic enamalled paint over and red oxide primer including preparation of surfaces complete

Supply and laying in trenches, fixed to pole XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross-sectional area 16sq. mm 4core complete all as directed.

S&F in replacement dialed type water pressure gauge 4" dia upto 15 Kg/cm2 including CP stop cock 15 mm with U tube. Make: Feibig/Heibig.

M&L for earthing complete with GI earth electrode 600x600x6.3mm thick burried directly in ground, earth pit not less than 2.25 mtr below ground level, with top edge of the plate not less than 1.5 mtr below normal ground level connected to both end and incl 32x6 mm GI strip 7.5 Mtr long by means of nut and bolts and washers of GI all as shown in electrical plate No 5 and including necessary exec funnel with wire mesh and watering pipe 20mm dia PCC chamber with PCC cover 50mm thick incl testing on completion. Note :- 1) The earthing resistance should be below 3Ω. 2) No payment against material at site will be paid. 3) 100% payment shall be made only after completion in all respect and testing of earthing and production of test results below 3Ω. 3) GI strip beyond 7.5 Mtr long shall be measured and paid sperately.

Supply and connect in replacement GI strip 32x6 mm in ground/ trench/ wall or such simillar positions.

CHAITANYA WINDWELL