Construction of Dhekiajuli Town Water Supply Project under AMRUT 2.0

Amount

Schedule I : Design Services (Design, Drawings and Documentation)

Investigation & Survey, Design, Approval of detailed engineering drawings, Preparation of BoQs, estimate for the entire water supply system satisfying the Employer's Requirements

Schedule II : Intake Tubewells and Submersible Pumps

Design, installation, development, testing and commissioning ofdeep Tubewell of size 350mmX300mm with ERW MS pipe casing including supplying all materials, including Transportation of drilling rig and equipment, erection at site, setting the work and dismantaling after completion of the work including temporary accommodation for the drilling personel as directed and specified,Pilot boring with 80 mm dia size. Supplying, Lowering & sinking of well assembly including welding of pipe joints for 350mm, 300mm dia ERW M.S. casing pipe and 300mm dia. M.S. strainer pipe including supplying M.S. Collar of suitable size made out of 40mm diaX 6 mm thick M.S. Flat by cutting, welding and tuning etc. all complete as required as directed. Fabrication and supplying of M.S. Cone of 300mm dia 1.00m long .Supplying and packing pea gravel around the periphery of casing .Developing of the D.T.W. with air compressor all complete as directed.

Designing, Providing, erecting, testing and commissioning of submersible pump set of required discharge and head as per approved design, conforming to IS 8034 and motor conforming to IS 9283, with water proof winding. Pump shall be suitable for various delivery head and discharge with stainless steel shaft. Motor suitable for working on 415 V ± 10%, 3 Ph, 50 Hz A.C. Supply, with cable guard, thrust carbon/fiber bearing to withstand entire hydraulic thrust. The pump set shall be suitable for direct coupling, with suitable suction strainer. Pump should have suitable discharge out let as per manufacturer's design,control panel, submersible copper conductor cable in single / double run upto Panel and 2 pairs of suitable size erection clamp 10 mm thick shall be provided with each pump. MS black column Pipe of Heavy duty conforming to IS-1239-Part-I (2004) standards including internal food grade epoxy coating and external enamel painting, all complete as per Employer's Requirements.

Design and construction Brick Security Wall with RCC framed structure at around the deep tube well Station with MS gate, boundary wall of 0.80 m. high (above GL) brick Security Wall with RCC framed structure of Size 3.5MX 3.5M with MS gate having locking arrangement, wall finished with weather coat cement paint & gate finished with non glossy synthetic enamel paint over a coat of red lead primer), all complete, as directed and specified. and Providing and fixing G.I. chain link fabric fencing of required width in mesh size 50x50 mm including strengthening with 2 mm dia wire or nuts, bolts and washers as required complete as per the direction of Engineer-in-charge.

Schedule III : Raw Water Transmission main :

Pipes and Specials - Design, supply, laying, hydro-testing, disinfection and commissioning of raw water transmission main of Supply, delivery & Stacking of Ductile Iron (DI) Pipes of Class K9, and P 1.0 rating, IS marked conforming to IS 8329:2000 Centrifugally Cast (SPUN) Pressure Pipes for water with Socket, Spigot ends and tyton joints in standard working lengths of 5.5 & 6m for classification K-9 suitable for Push- on Joint (Rubber Gasket Jointing) with cement mortar lining inside the pipes as per of IS 8329:2000 and Zinc Coating with a finishing layer of Epoxy Resin (Blue Epoxy) on external surfaces as per IS 8329:2000. including DI Specials and fittings of class K12, with plain, double socket, Socketed and flanged DI specials conforming to IS: 9523 including various types of bends, tees, reducers, socket and flanged tail pieces, duck foot bends, collars, mechanical joints, dead end caps, blank flanges etc. as per requirement including EPDM rubber gaskets suitable for tyton joints and ‘O” rings required for the jointing of specials with the pipes, nuts and bolts with packing gaskets, including required valves, appurtenances and chamber (air valves, sluice valves and non-return valves, pressure gauges) including excavation in trenches, dismantling of all type of pavements, sand bedding as required, backfilling of trenches and foundations with approved graed excavated materials and approved graded river sand as required including loading and unloading , Shuttering and shoring the earth at different levels in foundations where necessary with required prop, struts, planks, timbers, nails etc. including dewatering if necessary, road restoration, hydro-testing complete for distribution system as per Technical Specifications and direction of Engineer I/C

150 mm dia Ductile Iron Class K-9 pipe

Schedule IV : Water Treatment Plant :

Design, supply, construction, installation, testing and commissioning of Complete Water Treatment Plant of capacity 5.28 MLD (in 16 hours of operation and with raw water from underground source) with suitable design in conformity with the CPHEEO Manual and all relevant BIS Code of practices with latest amendment, current at the time of design & execution, having provision for sprinkler type aeration, rapid mixing, sedimentation & Filtration followed by disinfection, including all necessary Mechanical Work suitable for smooth & trouble free operation of the plant, Provision for Back Washing, Chemical house with Laboratory Facility including laboratory equipment and having provision for one Water Works Office and Storage accommodation, filter back wash water tank, sludge disposal system, recycling of back wash water, all internal connection & by-pass piping system including all internal and external electrification work for compound lighting etc., back wash water pump with necessary piping work etc., and including Internal electrification work (with concealed copper wiring of required C/S. area) with all necessary electrical fittings & fixtures viz., light / fan / power socket etc., all complete, as directed and specified

Design and Construction of 15.00MX7.00M and depth 4.00 meter of capacity 442.80 Cum with half and hour detension period Under Ground Treated Water Reserver having all appurtenances & provision in the Reserver for all inlet, outlet & overflow arrangement; calibrated water level indicator; Air Vent Pipe; Men Hole with Cover; CI Lugs inside the sump etc., and complete finishing of the pump room having steel casement window / ventilator, MS Rolling Shutter, C.C. flooring with metallic concrete hardener / C.C. flooring with metallic concrete hardener, internal electrification (with concealed copper wiring of required C/S. area) with all necessary electrical fittings & fixtures viz., light / fan / power socket etc., all complete, as directed and specified

Design, supply, erection, testing and commissioning Treated Water Pumping machinery in the at the clear water pump room at treatment plant including all necessary electrical and other installation works : 3 nos. (2 working + 1 standby ) horizontal split casing type electrically operated centrifugal pump set (as per relevant BIS specification) with matching drive motor (as per relevant BIS specification) with variable frequency drive where required, all of reputed make and conforming to BIS specification & other regulatory norms, giving a discharge as per required design against a total maximum head including providing all necessary suction & delivery piping arrangements with control valves & specials viz. foot valve, sluice valve, non return valve etc., electrical switch gear along with required capacity Capacitor bank panel and connection cable of required sizes, arrangement for priming pump with standby provision & priming water tank with suitable staging & required GI piping etc., anti vibratory mountings for the pump set, and including payment of all taxes and duties as applicable, furnishing manufacturer's test certificate & characteristic performance curve of the pump set, all complete as directed and specified.

Assam Type RCC Staff Accommodation at having 2 (two) No. dwelling unit for Operator / Chowkider having total plinth area of 110 Sq.m. with 600 mm. high plinth & 3300 mm. finished floor height comprising of 1 bed room with attached toilet, 1 living room, 1 kitchen with wall Tiles and Chajja & 1 entry veranda having aluminium casement window/ ventilator, 1st. class local hard Wood door frame, 1st. class local hard Wood panelled shutter (Toilet door shall be of solid moulded PVC frame & 25 mm. thick PVC shutter),with internal usable area Floor Tlies Finising , internal wall finished with plastic paint & exterior surfaces finished with weather coat cement paint and powder coated pre laminated corrugated Galvanised sheet roofing), A.C. sheet ceiling with wooden frame etc. including all necessary internal water supply & sanitary installation work, construction Septic Tank, internal and external electrification (with concealed copper wiring of required C/S. area) with all necessary electrical fittings & fixtures viz., light / fan / power socket etc., necessary plinth protection work, suitable drianage system white ant treatment etc. , all complete, as directed and specified.

Schedule V : Electrical Works :

Design, supply, erection, testing and commissioning of all Electrical works for Construction of 11 KV line and 11/.4 KV 160 KVA S/S for Providing power supply to Water treatement plant including electrical motor, electric cables, transformer, MCC panel, earthing, Cable trench, Cable tray, Gland and lugs, internal lighting & exhaust system , external lighting etc. , Providing electrical power connection to treatment Plant site, including drawal of electrical power line from the nearby APDCL Grid, setting up of required capacity Sub-Station, providing electrical control panel & metering unit etc. and including obtaining necessary approval from APDCL and payment of supervision & other charges to APDCL, if any, all complete, as specified & directed and all other associated works as per Employer's Requirements

Design, supply, erection, testing and commissioning of all Electrical works for Construction of 11 KV line and 11/.4 KV 25 KVA S/S all intake station (DTW) including electrical motor, electric cables, Transformer, MCC panel, earthing, Cable trench, Cable tray, Gland and lugs, internal lighting & exhaust system , external lighting etc , Providing electrical power connection to Deep Tube Well Site including drawal of electrical power line from the nearby APDCL Grid, setting up of required capacity Sub-Station, providing electrical control panel & metering unit etc. and including obtaining necessary approval from APDCL and payment of supervision & other charges to APDCL, if any, all complete, as specified & directed and all other associated works as per Employer's Requirements

Design and commissioning for load sanction at all the service connections for all Pump House and DMA Flow control Valves

Schedule V : Elevated Service Reservoirs

Design, construction, supply, erection, testing and commissioning of 2(Two) Nos Zonal Over head service reservoirs of Circular shape, RCC framed staging and capacities as given below at different locations under the command areas to be served. reservoirs have RCC Foundation including all necessary inlet/ outlet/ overflow/ draining etc. piping arrangement with control valves, M.S. ladder with guard ring for ascending to the inspection canopy and then to the Roof of the reservoir, Air Vent pipes, Manhole with frame & cover at roof, float operated inlet valve, calibrated water level indicator, lightening arrestor with earthing system, providing CC topping on bottom dome & conical dome inside the reservoir & CC Skirting on inner faces of reservoir wall, providing cement mortar plaster to all other exposed surfaces of the structure and painting of the RCC structure with weather resistant cement paint over priming coat & anti corrosive paint over a coat of lead primer to M.S. work, etc., all complete (as per all relevant BIS or ISO specification), as directed and specified.

Over head service reservoirs of Circular shape, RCC framed staging and 600 capacity and minimum 18.00 m staging height for Ward No 1,10, 50% of Ward 2 & 50% of Ward 3, 5% of Ward 4 , all complete as per Employer's Requirements.

Over head service reservoirs of Circular shape, RCC framed staging and 500.cum capacity and minimum 20 m staging height Ward No 8 & ^, all complete as per Employer's Requirements.

Schedule VI : Clear Water Transmission main :

Pipes and Specials - Design, supply, laying, hydro-testing, disinfection and commissioning of raw water transmission main of Supply, delivery & Stacking of Ductile Iron (DI) Pipes of Class K9, and P 1.0 rating, IS marked conforming to IS 8329:2000 Centrifugally Cast (SPUN) Pressure Pipes for water with Socket, Spigot ends and tyton joints in standard working lengths of 5.5 & 6m for classification K-9 suitable for Push- on Joint (Rubber Gasket Jointing) with cement mortar lining inside the pipes as per of IS 8329:2000 and Zinc Coating with a finishing layer of Epoxy Resin (Blue Epoxy) on external surfaces as per IS 8329:2000. including DI Specials and fittings of class K12, with plain, double socket, Socketed and flanged DI specials conforming to IS: 9523 including various types of bends, tees, reducers, socket and flanged tail pieces, duck foot bends, collars, mechanical joints, dead end caps, blank flanges etc. as per requirement including EPDM rubber gaskets suitable for tyton joints and ‘O” rings required for the jointing of specials with the pipes, nuts and bolts with packing gaskets, including required valves, appurtenances and chamber (air valves, sluice valves and non-return valves, pressure gauges) including excavation in trenches, dismantling of all type of pavements, sand bedding as required, backfilling of trenches and foundations with approved graed excavated materials and approved graded river sand as required including loading and unloading , Shuttering and shoring the earth at different levels in foundations where necessary with required prop, struts, planks, timbers, nails etc. including dewatering if necessary, road restoration, hydro-testing complete for distribution system as per Technical Specifications and direction of Engineer I/C

150 mm dia Ductile Iron Class K-9 pipe for Zone -I from OHR 600 cum

300 mm dia Ductile Iron Class K-9 pipe for Zone -IV from OHR 500 cum

Schedule VII : Site Development

Site development, Construction of Boundary Wall in two new ESR & Demolising of Existing Structure for construction of New WTP and Culvert

Design, construction and commissioning for site development with Earth Filling at existinng Water Tretment plant site and Two new proposed ESR stie . Approximate size of the plot of land for site development : 3950 Sq.m. all complete, as directed and specified s per Employer's Requirements.

Design, construction and commissioning of Construction of Boundary Wall of 2.00 meter height (above GL) brick Security Wall with RCC framed structure at proposed new ESR site with MS gate having locking arrangement, wall finished with weather coat cement paint & gate finished with non glossy synthetic enamel paint over a coat of red lead primer), all complete, as directed and specified s per Employer's Requirements.

Design, construction and commissioning of 4.00 m. wide internal road/path made of cement concrete laid over GSB and WMM/WBM etc. inside the proposed ESR site, land scrapping , all necessary labour & materials, all complete, as directed all complete, as directed and specified s per Employer's Requirements.

Design, construction and commissioning of Site developmnet, Plinth protction and construction of 4.00 m. wide internal road/path made of cement concrete laid over GSB and WMM/WBM etc. at Existing WTP site , land scrapping , all necessary labour & materials, all complete, as directed all complete, as directed and specified s per Employer's Requirements.

Design, construction and commissioning Dismentling of the un-used old WTP structure & Staff Quarter at Treatment Plant Site for construction of New WTP including disposal of debries arising out of dismentling and stacking out of serviceable materials (viz. reinforcing steel etc.) obtained rom dismentling, if any, all complete, as directed and specified. as directed and specified s per Employer's Requirements.

Design and construction of Construction of Culvert Slab in front of main gate at new two number of proposed ESR Site

Schedule VIII : Repairing of Existing WTP of 2.10 MLD capacity for Deekajuli WSS

1. Design, supply, construction, installation, testing and commissioning of cleaning of Sedimentation tank at old water supply Treatment Plant Site. Cleaning of Sedimentation tank by dewatering with the help of Diesel pump and lifting of slushy materials, mud deposited in the bed including all materials and equipments. 2. Design, supply, construction, installation, testing and commissioning of Cleaning of Under Ground Reservoir for existing water treatment plant by dewatering with the help of Diesel pump and lifting of slushy materials, mud deposited in the bed including all materials and equipments 3. Design, supply, construction, installation, testing and commissioning of for Painting works of all units of old water Treatment Plant & existing two numbers of elevated Service Reservoir site. 4. Design, supply, construction, installation, testing and commissioning of supplying, fitting, fixing of Piping works along with Sluice Valve at Filter house, Sedimentation tank, Valve Chamber, Aerator at existing water Treatment Plant Site. 5. Design, supply, construction, installation, testing and commissioning of for Repairs/Plastering to all structure at existing water Treatment Plant & ESR. 6. Design, supply, construction, installation, testing and commissioning of for Repairing of Door & Window at existing Treatment Plant site 7. Design, supply, construction, installation, testing and commissioning of Tiles at Treatment Plant site of existing Dhekiajuli Town Water Supply Scheme 8. Design, supply, construction, installation, testing and commissioning of Painting of Boundary wall and Gate at existing Dhekiajuli Town Water Supply Scheme Treatment Plant & ESR site

Schedule IX :Distribution Network

Pipes and Specials - Design, supply, laying, hydro-testing, disinfection and commissioning of distribution pipe network of DI S/S ended (K 7) and PN 1.0 rating IS marked pipe of following dia, as per IS-8329-2000 including DI Specials and fittings of class K12, with plain, double socket, Socketed and flanged DI specials conforming to IS: 9523 including various types of bends, tees, reducers, socket and flanged tail pieces, duck foot bends, collars, mechanical joints, dead end caps, blank flanges etc. as per requirement including EPDM rubber gaskets suitable for tyton joints and ‘O” rings required for the jointing of specials with the pipes, nuts and bolts with packing gaskets, including excavation in trenches, dismantling of all type of pavements, sand bedding as required, backfilling of trenches and foundations with approved graded excavated materials and approved graded river sand as required including loading and unloading , Shuttering and shoring the earth at different levels in foundations where necessary with required prop, struts, planks, timbers, nails etc. including dewatering if necessary, hydro-testing completefor distribution system as per Technical Specifications and direction of Engineer:

150 mm - DI K-7 (m)

200 mm - DI K-7 (m)

Pipes and Specials - Design, supply, laying, hydro-testing, disinfection and commissioning of distribution pipe network of HDPE (PE80) pipe by laying with Treanchless Technology wsing HDD mechnne including all specials confirming to IS 4984 and the specifications, including third party inspection, all taxes and duties, transportation, freight charges, loading and unloading, conveyance to the project site and stacking with cost of all labor and material for following pipe diameters.

110 mm - HDPE (m)

125 mm - HDPE (m)

140 mm - HDPE (m)

Valves and Appurtenances - Design, supply, installation, testing and commissioning of manually operated Ductile Iron of DIN 1693 Grade - GGG 40/ GGG 50/ SG Iron of IS 1865 Grade - 400/12/500/7. Double Flanged Non Rising Type Sluice Valve (for control , wash out, DMA meters, fire hydrants) of various size as per CPHEEO, as per IS 14846/2000 (PD Type) PN 1.0 having seat of body/wedge face ring Gunmetal to IS 318 LTB 2, Stem SS AISI 410 with manual handhweel operation. Flange Drilled as per IS 1538 Table IV & VI Flat Face, including Ductile Iron companion Flange as per IS : 9523/2000 for installation of valves, Providing flanged joints to double flanged pipes and specials, all inclusive, with testing of joints and including supplying bolts, nuts and 3 mm thick rubber insertion sheet all complete as per Technical Specifications and as per direction of Engineer.

Valves and Appurtenances - Design, supply, installation, testing and comissioning of manually operated Ductile Iron of DIN 1693 Grade GGG 40/50 or SG Iron of IS 1865 Grade 400/12, 500/7 Flanged End temper proof air valve as per AWWA C512 or IS 14845 of 80mm dia of PN 1.0 having seat ring nozzle gunmetal covered with EPDM float of chamber : SS AISI 304 with ductile iron slucie valve as per IS 14846 PN 1.0 having seat ring gunmetal to IS 318 LTB 2, Stem SS AISI 410 with manual handwheel operation flange drilled to IS 1538 Table IV & VI Flat Face inclduing Ductile Iron companion Flange as per IS : 9523/2000 for installation of valves, Providing flanged joints to double flanged pipes and specials, all inclusive, with testing of joints and including supplying bolts, nuts and 3 mm thick rubber insertion sheet all complete as per Technical Specifications and as per direction of Engineer.

Valve Chambers - Design and Construction of RCC and Brick masonry chambers for valves, hydrants, DMA meters etc. including cost of reinforcement, PCC (1:4:8) and RCC (M20) work, cost of supply and bending and binding of steel with required shuttering, cost of brick work (230/ 350 mm thick Brickwork in CM 1:6) with plaster (10mm thick of 1:6) from inside and outside , precast slabs and supply and installation of SFRC frame and coves wherever required, including excavation,dewatering, formwork, backfilling, road restoration and all the miscellaneous items of work, but excluding the supply and installation of pipes and specials, valves etc. as per specification, approved design and drawings.

Pipe jack forRoad crossing with Jacking and Pushing method. The item include design, fabricating, supplying, pushing, jointing required diameter of MS casing pipe(1000 mm ID x 20mm thick Casing Pipe of required length, construction of Receiving and Jacking pit with suitable shoring and strutting (if required), including installation of jacking platform, thrust resistant arrangement of required capacity including , hydraulic jacking with required accessories, required excavation inside the jacking pipe and disposal the same, etc. all complete as per drawing, specification and as directed.

DMA meters - Design, Supply, install and commission, including calibration in third party laboratory, full bore battery operated Electromagnetic Flow Meter (EMF) as per ISO 4064, for potable water with accuracy as per specification, with in-built wireless communication (GSM/ GPRS model with data logger) along with one number of battery operated Pressure Transmitter (ratio metric type) and integration of pressure signal with DMA flow meter wireless communication modem, inclduing software for datalogging with workstation, as per given specifications for following sizes including sensor, transmitter surge arrestor, cables, pipe cutting, leveling and installation of flow meter and pressure transmittor in the pipelines with necessary tool tackles etc complete, as may be required at site & based on technical specifications

Fire Hydrants - Providing,Fixing, testing &Commissioning of Single Headed Gun Metal ISI Marked oblique pattern Hydrant Landing Valve with 80 mm dia, flanged inlet & 63 mm dia instantaneous type female outlet complete with cap and chain, twist release lug and all accessories as per IS:5290-1993(third revision) (Type-'A'), Cast Iron Sluice Valve/ Gate Valve confirming to IS:14846/2000 complete with matching flanges, rubber insertion, nuts, bolts and washer etc., inclduing Ductile Iron Flanged socket as per IS : 9523/2000 PN-16 and flanged joints to double flanged pipes and specials with testing of joints and including supplying bolts, nuts and 3 mm thick rubber insertion etc. for installation of valve all complete as per specification and as directed. (MAKE:ESSEL/WINCO/NEWAGE/ equivalent)

Adiministrative cost for NH crossing of pipe laying at Dhekiajuli. For 34.00m road crossing , 770.00m for laying of DI pipe and 2553.00 meter for laying of HDPE pipe by Trenchless method.

Schedule VIII : Service Connections and Meter Installation

Domestic Water Meter (Non AMR): Providing, installing and giving satisfactory field testing of water meter (domestic type) with Confirming to ISO-4064 ,Class-B , Multijet type , Super dry dial, MID Approved, CE – Marked, Metallic can register, Display parameters : Totaliser, Connection : ISI mark as per IS 4064 , horizontal with ISI mark along with manufacturer's test certificate and guarantee certificate, with 5 years warranty, including cost of all materials, as per specification

15 mm Multijet type Water Meters

20 mm Multijet type Water Meters

Service Connection: Providing House Service connection from the distribution network pipe lines comprising of PVC Shadle Piece, Brass Ferrul Cock and average 10.0 m. long reputed Brand 3 layer (Outer green coloured UV Stabilised, middle black coloured UV Stabilised and inermost layer white coloured with antimicrobial property) Fusion welded PP-R (Poly propylene- random copolymer) Pipes, SDR 7.4 having thermal stability for hot and cold water supply including all plain PP-R fittings and brass threaded PP-R fitting and clamping, cutting etc. including all necessary earth work, restoration of road hard crust / side berm (repairing charges payable to PWD / local bodies, if any), hooking up of the service connection with the nearby distribution pipe network including payment of all taxes & duties, forest royelity, octroi, all complete, as directed and specified.

Schedule IX : Road Restoration Works

Sub Base & Base for restoration of existing asphalt/gravel road: Providing, and constructing granular sub-base with close graded grading-I material for 150 mm compacted thickness and wet mix mecadam with graded stone aggregate for 250 mm thickness including premixing the material with water at OMC in mechanical mixing plant, carting to work side, spreading and compacting etc complete for all leads and lifts as per drawing and specification.

Bituminous surface for restoration of existing asphalt road: Providing and laying Bituminous concrete using crushed stone aggregates of specified grading, premixed with bituminous binder and filler, transporting the hot mix to work site by tippers, laying with paver finisher equiped with electronic sensor to the required grade, level and alignment and rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction and density as per specification, complete and as per directions of Engineer-in-Charge. 40/50 mm compacted thickness with bitumen of grade VG-30 @ 5.5% (percentage by weight of total mix) and lime filler @ 3% (percentage by weight of Aggregate) prepared in Batch Type Hot Mix Plant of 100-120 TPH capacity.

Cement Concrete Road Restoration: Dry Lean Cement Concrete Sub- base of 150 mm thickness and cement concrete pavement of 300mm thickness as per specification (Item 6.1 & 6.2(A)of APWD-MDR_SOR 2013-14)

Dismantling & Restoration of paver block roads: Dismantling and Restoration of paverblock roads and disposal of dismantled materials up to a lead of 1000 m, stacking serviceable and unserviseable materials separately.

Schedule IX : Operation and Maintenance

Operation and Maintenance of the entire Water Supply System including Raw water Intake Pumping System on Floating barge,Raw water transmission main,Water Treatment Plant ,clear water transmission main,Elevated service reservoirs and Distribution System with supply of Man-power, power/ electricity cost, spares,chemicals & consumables, tools and tackles, fuel for operation of DG set when required and others for 5 years .

1st year of Operation and Maintenance

2nd year of Operation and Maintenance

3rd year of Operation and Maintenance

4th year of Operation and Maintenance

5th year of Operation and Maintenance