Devrana GOV pumping water supply scheme of Block Naugaon District Uttarkashi

Amount

Raft top of the well shall be up to 4.5 m higher than HFL and bottom of well shall be 1.00 m from max. scour depth of the lowest water level of the Song river as per the decision of Engineer-in-Charge and designer’s suggestions.

A collecting chamber of appropriate size attached structurally with the main Intake Well and having the same depth with the feeding channel / pipe to carry the raw water from river to collecting chamber.

The Intake well shall have a 60 cm wide RCC or MS circular stair case with suitable landing and 1.00 m high GI pipe 20 mm railing in 3 rows supported on ISA 40x40x5 angle iron posts. The stair case should be started from deck slab to the lowest foundation beam of the Intake well.

Construction of various RCC foundations for installing pumping plants with motors, arrangement of fixing of various valves etc complete.

Intake well deck floor slab bottom shall be1.00 m above HFL and steinning wall height shall not be less than 9.5 m high above raft. The slab shall have suitable opening for the inside circular stair case and opening have suitable 1.00 meter high railing of GI pipe 20 mm Ø in 3 rows supported on MS angle iron posts of ISA 40x40x5 for prevention of falling of men and material in the well.

1.20 m wide RCC circular balcony around outside the well and 2.00 m wide RCC approach path not less than 1.00 m high on HFL and having GI pipe 20 mm railing 3 rows supported on MS angle iron post ISA 40x40x5 grouted in RCC deck slab.

The ceiling of roof slab of Intake well pump house shall not be less than 4.0 m above deck slab and projecting 1.00 Meter outside the pump house wall providing roof over the balcony. The roof slab shall be sloping and should have good architectural look as per satisfaction of engineer in charge. Pump house shall be provided with the following doors and windows:- (a) Entrance 1 No door of size 1.5 m x 2.1 m, (b) 3 Nos windows of size 0.9 m x 1.2 m. The door and windows shall be heavy size “Z” section and windows having outside MS grill of MS squre bar of 10 mm x 10 mm size and opening shall not be more than 10 cm x 10 cm and mosquito proof net and fitting welded on door and windows to the satisfaction of Engineer in charge of work.

The structural design of the Intake well shall have a suitable 2.00 m wide and 12 m long span RCC bridge with approach road. Span of the bridge and lenght of approach road may vary as per site requirements for making approach to the Intake well cum pump house including iron gate on entrance.

All the expose masonry works shall either be of well plastered or of raised pointing or of ornamental plastering as per direction of Engineer in charge of work.

Pump house and Intake well shall be painted with two coats of approved quality and shade of apex or equivalent quality exterior paint over one coat of suitable primer and railing/ MS posts shall also be painted with approved quality and shade of two coats of anti corrosive enamel paint over one coat of approved quality primer.

All necessary arrangements for dewatering during construction, diversion of river and necessary safe guards against flood shall be done by the contractor at his own cost and risk and no extra payment shall be made for these appurtenant works.

The detailed structural design of the Intake well cum pump house showing all the details shall be supplied in 3 copies by the contractor within 21 days of acceptance of tender. The contractor shall be bounded to supply any other information asked for in respect of the above, failing which his tender will be liable to be rejected and earnest security deposit shall be forfeited. The contractor shall also give reference of all the relevant IS/BS codes, which ever and where ever applicable in the design and also other clarifications as and when asked for.

Variation in rates of item no. 1 (1.01 to 1.13) above for variation in depth of RCC Intake well.

Increase in rates for each 0.50 m increase in depth (upto a total of 1.50 m)

Decrease in rates for each 0.50 m decrease in depth of well (upto 1.50 m).

Increase in rates for each 0.5 m increase in internal diameter intake well.

Decrease in rates for each 0.5 m decrease in internal diameter intake well.

Increase in rates for each 1.0 m increase of RCC approach bridge length.

Decrease in rates for each 1.0 m decrease of RCC approach bridge length.

Design and Supply of all materials, labour T & P etc. and equipments to construct 1.00 MLD capacity (for 16 hours operation per day) Rapid Sand Gavity filteration plant consisting of all required arrangement viz inlet chamber, clarifloculator, settling tank, filteration unit of 1.80 MLD each of specified gravel bed media with wash water trough, wash water storage back wash arrangement and scour & under drainage system and chemical solution tank & appropriates valves etc all complete,all the units of WTP Shall be connected minimum 1.0 mt. wide R.C.C. approch path with railing on both sides considering local safety features including cartage of all materials, labour, T & p etc. as per CPHEEO guidelines required for proper completion of work.all

Civil Works - Excavation of earth for pipeline trenches of Raw, Clear water rising main, Feeder Main and Distribution System in following strata requiring the use of specials, T&P such as pick axes, sabbals crow bars etc with a lift upto 1.5 m and lead upto 30 m. including refilling, watering, ramming of excavated earth into the trenches and removal & disposal of surplus earth upto a distance of 60 m. from the trenches including supply of all materials, labour, T & P etc. all complete.

Soil mixed with boulder and bajri

Medium rock

Confirmatory Survey and economic design of rising main including supplying, cartage, laying, jointing, fixing & welding of following API pipe (X-56 grade), duly painted out side with anticorrosive paint from factory and in case of damege of this painted layer it shall be done at site before laying without any extra cost and other appurtenent works such as fixing of wheel valve, sluice valve, reflux valve at suitable points including making scouring arrangment at suitable location by fixing tee and gate valve, making of by pass arrangments at sump cum CWR & TOP CWR etc. complete and also testing and commissioning of laid pipe line including supply of all materials, labour, T&P etc. complete.

150 mm dia and 3.60 mm thick

125 mm dia and 6.60 mm thick

125 mm dia and 4.00 mm thick

100 mm dia and 4.00 mm thick

80 mm dia and 3.20 mm thick

Supplying, Carting, fixing of following size of Brass/G.M Sluice valve of rising main as perClass -788/1997 at suitable points including supply of all materials, labour and T&P etc. complete.

25 mm dia

32mm dia

40 mm dia

65 mm dia

Supplying, Carting, fixing of following size of High Head Cast Steel ASA 600 class Reflux valve of rising main as perClass -300 at suitable points including supply of all materials, labour and T&P etc. complete.

150 mm dia

125 mm dia

100 mm dia

80 mm dia

Supplying, Carting, fixing of following size of High Head Cast Steel ASA 600 class Scour/sluice valve of rising main as per Class 600 at suitable points including supply of all materials, labour and T&P etc. complete.

150 mm dia

125 mm dia

100 mm dia

80 mm dia

Supplying, Carting, fixing of following size of High Head Cast Iron Scour/sluice valve (P-N-1.6) of rising main as per IS 778/2000 at suitable points including supply of all materials, labour and T&P etc. complete.

150 mm dia

125 mm dia

100 mm dia

80 mm dia

Supplying, Carting, fixing of following size of High Head Cast Steel ASA 600 class Air valve of rising main as per Class 600 at suitable points including supply of all materials, labour and T&P etc. complete.

50 mm dia

Supplying, Carting, fixing of following size of High Head Cast Iron Air valve (P-N-1.6) of rising main as per IS 778/2000 at suitable points including supply of all materials, labour and T&P etc. complete.

50 mm dia (T.P..15kg/Sqm)

Survey, design supplying, carting, laying & jointing of Supply Main/ Distribution system of following size of G.I. (Medium) pipe confirming to IS 1239 Part I : 2004 including provision of specials and other appurtenant works such as fixing of air valve, sluice valve etc. at suitable points including making scouring arrangement at suitable locations by fixing tee & gate valve etc. complete and also testing & commissioning of laid pipeline including supply of all materials, labour, T&P etc. complete.

25 mm dia

32 mm dia

40 mm dia

Supply of all materials, labour & Construction of Wheel/Scour /Air valve chamber ( 60 x 60 x 75 cm) in brick masonnry with fixing of M.S. manhole cover on top including supply of all materials, labour, T&P etc. complete required for proper completion of work as per drawing & design.

Constructing masonry Chamber 120x120x100 cm inside, in brick work in cement mortar 1:4 (1 cement : 4 coarse sand) for sluice valve, with C.I. surface box 100 mm top diameter, 160 mm bottom diameter and 180 mm deep ( inside) with chained lid and RCC top slab 1:2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) , i/c necessary excavation, foundation concrete 1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40 mm nominal size) and inside plastering with cement mortar 1:3 (1 cement : 3 coarse sand) 12 mm thick, finished with a floating coat of neat cement complete as per standard.

Construction of Anchor Block /Thrust Block in R.C.C. 1:1.5:3 size as directed by Engineer In Charge with necessary reinforcement along the alignment of Clear Water Rising Main including supply of all materials, labour, T&P etc. and reinforement complete as per type design as per direction of engineer incharge including cartage of materials. size of thrust block at spacing of 100 m each from pump to half length of top CWR.

1.0 m x 1.0 m x 1.0 m

1.5 m x 1.5 m x 1.5 m

Design & Construction of following size of pump house considering all local safety features including supply of all materials, labour T&P, cable trenches, pannel & pump foundation etc complete as per type design.

At IPS-1 ,,IPS-2,MPS (7 x 5.0 x 5.0) mtr.

Design & Construction of following size of Type-I Residences for care takers/operator or chowkidar for effective operation and maintenance of the scheme and Pumps etc as per type design and drawing complete at MPS

Supplying, Carting, fixing of following sizes of CI/DF Pressure Reducing valve as per IS: 14846 with caps etc. flange drilled as per IS: 1538/70 ISI marked etc. at suitable points including supply of all materials, labour and T&P etc. complete.

25 mm dia

Design and Construction of following R.C.C. M 25 grade semi sunk circular service water reservoirs as per latest IS codes of following capacity and other appurtenant works including supply of all materials, labour and T&P etc. with all necessary scaffolding, shuttering and other accessories alongwith construction of valve chambers, supply and fixing of inlet and outlet pipes, lightining conductor, water level indicator, including supply and fixing Bulk water meter compatible with IoT device, provision of bye pass connections with chambers & M.S. Manhole cover with locking arrengment including supply and fixing of M.S. Steel Ladder of 65 mm x 65 mm x 5 mm angle outside and inside the tank ( For tanks 20 KL capacity or more) and colour washing of approved apex or other exterior high class paint, on the tank, manhole SS mosquito wire mesh over expanded metal mesh including supply of all materials, labour, T&P etc. complete required for proper completion of work or as per direction of engineer incharge of work. The reservoirs shall be checked for water tightness i.e for leakage, seepage in the tank and before making the final payment to contractor.

P.C.C. 1:2:4 with 40 mm gauge stone ballast including supply of all materials, labour, T&P etc. complete.

P.C.C. 1:4:8 with 40 mm gauge stone ballast including supply of all materials, labour, T&P etc. complete.

Random Rubble stone masonry in 1:6 with cement and sand mortar including supply of all materials, labour, T&P etc. complete.

Random Rubble stone masonry laid dry including supply of all materials, labour, T&P etc. complete.

supply of all materials, labour & Construction of Chlorinator chamberand instalation of bucket type chlorinator 25 liters as per type design & drawaing complete.

Provision of barbed wire fencing all around the CWR for approach of unauthorised persons.

supply of all materials, labour & Construction of Cable Trench from transformer to pump house as per type design & drawaing complete.

Painting with blACK anti-corrosive bitumadstic paint of approved brand and manufacture on MSERW pipe Two or More coat.

Construction of Briddle Path 2.0 mtr wide On hill side excavation will be 1.00 m while on valley side no excavation will be made. Collie walls shall be laid no 50% of length to retain earth. Protection will be done in 50% of length to retain earth including supply of all materials, labour, T&P etc. complete.

supply of all materials, labour & Construction of break pressure tank as per type design complete.

supply of all materials labour T&P etc.consttruction of boundry wall of height 1.50 mtr.

supply of all materials labour T&P etc.consttruction of Piller and Fixing of Ms gate of height 1.50 mtr.

supply of all materials, labour & Construction of Semi Circular Drain as per type design complete.

ELECTRO MECHANICAL WORKS SITC of following pumping plant & accessories

INTAKE WELL

Electric driven horizontal split case centrifugal Raw water pump with coupling, coupling guards & MS fabricated heavy duty base plate for mounting above pump and motor.

Electric motor suitable for above pump

Air Cooled fully automatic ATS starter suitable for above pump set.

Control panel for above pump set

Electric driven horizontal multi stage centrifugal clear water pump withbase frame, coupling and coupling guards

Electric motor suitable for above pump

Fully automatic air cooled auto transformer starter suitable for above pump set

Control panel for above pump set

Electric driven horizontal centrifugal clear water pump with coupling, coupling guards & MS fabricated heavy duty base plate for mounting above pump and motor..

Electric motor suitable for above pump

Air Cooled fully automatic ATS starter suitable for above pump set.

Control panel for above pump set

IPS- II (A)

Electric driven horizontal centrifugal clear water pump with coupling, coupling guards & MS fabricated heavy duty base plate for mounting above pump and motor.

Electric motor suitable for above pump

Air Cooled fully automatic star delta starter suitable for above pump set.

Control panel for above pump set

IPS- II (B)

Electric driven horizontal centrifugal clear water pump with coupling, coupling guards & MS fabricated heavy duty base plate for mounting above pump and motor.

Electric motor suitable for above pump

Air Cooled fully automatic ATS starter suitable for above pump set.

IPS- III

Electric driven submersible pump with submersible motor

Spare submersible pumping plant as above

Electrical control panel cum automatic starter suitable for above pump

Al. Cable

Supply and laying of 120 mm2 size 3.5 core, XLPE sheathed armoured cable of 1.1 kv grade for Intakewell, IPS-I, IPS- II

Supply and laying of 400 mm2 size 3.5 core, XLPE sheathed armoured cable of 1.1 kv grade for MPS

Supply and laying of 35 mm2 size 3.5 core, XLPE sheathed armoured cable of 1.1 kv grade for IPS-III

Copper cable

Supply and laying of 35 mm2 size 3.0 core, PVC insulated submersible cable for Intakewell

Supply and laying of 70 mm2 size 3.0 core, PVC insulated submersible cable for MPS, IPS-I

Supply and laying of 10 mm2 size 3.0 core, PVC insulated submersible cable for IPS-II (A)

Supply and laying of 25 mm2 size 3.0 core, PVC insulated submersible cable for IPS-II (B)

Supply and laying of 6 mm2 size 3.0 core, PVC insulated submersible cable for IPS-III

Jointing Material

Supply & fixing of jointing material such as lugs, tape etc for Intakewell, IPS-I, IPS-II (A), IPS-II (B) & IPS-III

Supply & fixing of jointing material such as lugs, tape etc for MPS

Earthing

Complete double loop G.I earthing with material such as earth plate, earth strips, coal, salt etc as required as per IE rules at site for Intakewell, MPS, IPS-I, IPS-II (A), IPS-II (B) & IPS-III

Main Piping & Valves

Main Piping & Valves suction side 150 mm dia size & delivery side 100 mm dia size with bypass arrangement for Intakewell

Main Piping & Valves suction side 150 mm dia size & delivery side 100 mm dia size with bypass arrangement for MPS

Main Piping & Valves suction side 150 mm dia size & delivery side 100 mm dia size with bypass arrangement for IPS- I

Main Piping & Valves suction side 100 mm dia size & delivery side 80 mm dia size with bypass arrangement for IPS- II (A) & (B)

Main Piping & Valves of 80 mm dia size for IPS- III with following items-

80mm dia x 4.8 mm thick column pipe in 2 mt length with interlocking arrangment

80 mm dia CS D/F 300 ASA sluice valve with hand wheel

80 mm dia CS D/F 300 ASA reflex valve

80 mm dia MS D/F pipe of 1.5 mt. length - 2 nos., 80 x 80 x 80 mm dia Tee -1 no. 80 mm dia CI D/F bend-2 nos.

MS clamp

Pressure gauge

Pressure gauge (0-100 kg/cm2) - 1 no and compound gauge (0(+/-)1.0 kg / cm2) - 1 no with fittings for Intakewell, MPS, IPS-I, IPS-II (A) & (B)

Pressure gauge (0-60 kg/cm2) - 1 no and compound gauge (0(+/-)1.0 kg / cm2) - 1 no with fittings for IPS-III

Tools

Supply of necessary tools for Intakewell, IPS-I, IPS-II (A), IPS-II (B) & IPS- III

Supply of necessary tools for MPS

Rubber resistance sheet

Supply of rubber resistance sheet 1mtx 2mt x 0.025 m for ( Intakewell, IPS-I, IPS-II (A), IPS-II (B) & IPS- III)

H.O.T crane / Chainpulley

3 Tonne capacity, 25 mt lift chainpulley block with travelling arrangement for Intakewell

5 Tonne capacity Hot Crane, 4.5 m lift with gantry girder, cross girder,chain pulley block & travelling arrangement for MPS

3 Tonne capacity Hot Crane, 4.5 m lift with gantry girder, cross girder,chain pulley block & travelling arrangement IPS-I & IPS-II (A)

2 Tonne capacity chainpulley block for IPS-III

Testing

Testing of Pump at manufacturers work for Intakewell, MPS, IPS-I (A), IPS-I (B), IPS- II

Testing of Pump at site for Intakewell, MPS, IPS-I (A), IPS-I (B), IPS- II

Testing & commissioning of submersible pumping plant & accessories for IPS- III

Painting

Painting of pumping plant at Intakewell, MPS, IPS-I, IPS-II (A) & IPS-II (B)

Internal & External electrification

Internal & External electrification of pump at Intakewell, MPS, IPS-I, IPS-II

External electrification of pump house campus at IPS- III

Main switch

200 Amp main switch for Intakewell

400 Amp main switch for IPS-I

320 Amp main switch for IPS-II

63 Amp main switch for IPS-III

Servo voltage stablizer

Servo voltage stablizer 180 KVA capacity for IPS- II

Servo voltage stablizer 25 KVA capacity for IPS- III

Earthing for servo voltage stablizer

M.S. structure pump house of size 3.5 m x 3.5 m x 3.5m for installation of panel starter, servo voltage stablizer, main switch etc.

Transformers

SITC of 100 KVA transformer at Intakewell

SITC of 400 KVA transformer at MPS

SITC of 160 KVA transformer at IPS-I & IPS-II

Eartihg of Transformers

Eartihg of Transformer at Intakewell, MPS, IPS-I, IPS- II, IPS-III

HT cable for Transformers

Supply & laying of 95 mm2 3 core PVC sheathed XLPE HT Al. cable for MPS

Supply & laying of 50 mm2 3 core PVC sheathed XLPE HT Al. cable for IPS-I & IPS- II

Supply & laying of 35 mm2 3 core PVC sheathed XLPE HT Al. cable for Intakewell

HT cable jointing kit

Supply & fixing of HT cable jointing kit

HT Panel

SITC of HT panel including VCB for MPS

Fencing of transformer

Fencing of transformer at Intakewell, IPS- I, IPS- II & IPS- III

Fencing of transformer at MPS

Testing of transformer

Testing of transformer at manufacturer works

Automation

SITC of automation, accessories for pumping plant at Intakewell, MPS, IPS-I & IPS- II

GSM BASED REMOTE TERMINAL UNITS WITH Analog and Digital Parameter and features as specified to store and transmit data on GSM backbone to LMS(RTUs shells be integrated with the starter Panel)

GSM BASED REMOTE TERMINAL UNITS WITH Analog and Digital Parameter and features as specified to store and transmit data on GSM backbone to LMS(RTUs shells be integrated with the starter Panel) (For 4 nos pump)

GSM based wireless communication hardware for RTUs capable to transfer data from remote site to MCS/LMS with all accessories.

Electromagnetic insertion type flow meters for line sizes 100 mm with local electronics(display and set point facility) and 4-20mA retransmission output to SCADA

Electromagnetic insertion type flow meters for line sizes 80 mm with local electronics(display and set point facility) and 4-20mA retransmission output to SCADA

Energy meters suitable for automation

Valve acutuator for 100 mm dia valve

Valve acutuator for 80 mm dia valve

Actuator Panels

Hard wired timer circuit for actuators

Pressure transmitter

Isolation Transformer (440 V step down 220 V for protection of site automation)

Over voltage & under voltage trip protection (350 V- 450 V)

Level transmitter of 10 mt range

Cabling Work

Single cabling between RTU and field instruments, 2 Core x 1.5 PVC coated flexible screened cable

4 Core x 2.5 sq mm Cu Power cable

4C x 1.5 sq mm PVC coated flexible unscreened Cu cable

10C x 1.5 sq mm PVC coated flexible unscreened Cu cable

Conduit pipe 1" PVC

Conduit pipe 1.5" PVC

Customization of software & Integration with existing SCADA Station

Errection, commissioning & customization of iRTU/PLC & software

Operation & Maintenance of 5 nos. pumping station 16 hrs per day basis at Intakewell, MPS, IPS- I, IPS-II & IPS- III

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