Attal Pumping Water Supply Scheme including confirmatory survey design testing and commissioning of different pipe lines etc complete with 03 months trial run

Amount

Civil Works

The bottom of the well will be up to 6.0 m below the lowest water level of the Tons river of as per the decision of Engineer-in-Charge and designer’s recommendations.

The Infiltration well will be filled with graded media inside well upto 0.60M depth and also in 0.75M width around the outer dia of well with well protection of filter media to ensure clear water of required discharge as per design and approval of Engineer Incharge of appropriate size.

The Infiltration well shall have a steel staire and railing with latest specification and well anchored with wall started from deck slab up to thebottom of I.well.

Arrangements of fixing valves and supported and grouted properly.

The outside 1.2 meter wide balcony shall have GI pipe railing in 3 rows supported on MS angle iron.

1.2 m wide RCC circular balcony around outside the well and RCC approach above 1.00 m HFL and having GI pipe 20 mm railing 3 rows support on MS angle iron post grouted in on RCC slab.

Roof slab of I. well pump house shall be 3.5 m above deck slab and projecting 0.60 Meter outside the pump house wall providing roof over the balcony. The roof slab shall be flat/sloping and should have good architectural look. 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 window having outside MS grill 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 I. well shall have a suitable 1.5 m wide and 8 m span RCC bridge and approach road 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 I. well shall be painted with two coats of approved quality and shade of cement, paint, snowcem, over one coat of primer and railing/ MS post shall be painted with approved quality and shade two coats of anti corrosive paint over one coat of approved quality of primer.

All necessary arrangements for dewatering during constructions diversion of river safe guard 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 Infiltration well cum pump house showing all the details should be supplied in 4 copies by the contractor within 21 days of acceptance of tender. The contractor will be bound to supply any other information asked for in respect of the above, failling which his tender will be liable to be rejected and earnest security deposit shall be forfeited. The contractor should also give reference of all the relevant IS/BS code, 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 I. well.

Increase in rates for increase in height of I. well (upto a total of 1.50 m)

Same as item no. 2.01 but increase in height of I. well 1.5 m to 3.00 m.

Same as item no. 2.01 but increase in height of I. well above 3.0 m

Decrease in rate for each 1.0 m decrease of RCC approach bridge length upto 3.0M.

Increase in rate for each 1.0 m Increase of RCC approach bridge length upto 3.0M.

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 etc. or by blasting or by crow bars 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

Supplying, cartage, laying, jointing, fixing & welding including confirmatory Survey and design of rising main of following MS ERW Pipes grade Yst 210 / API pipes confirming to API 5L, Jointing by electric welding process with proper grade of eletrodes suitable for jointing of water supply pipe lines (Ador, L&T or equivalent quality of electrodes) by cutting of pipes and making required bends by welding, completion of work with testing of pipe line etc complete, 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, sulice valve, reflux valve at suitable points including making scouring arraingment 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.

For Rising Main

From Infiltration Well to IPS MSERW Pipe grade yst 210 of 100 mm Dia 4.80 mm Thickness

From IPS toTOP CWR MSERW Pipe grade yst 210 of 100 mm Dia and 4.80 mm Thickness

Supply, Carting, Laying & Jointing including confirmatory survey and Design of Supply / Feeder Main of GI Medium Pipe confirfing to IS:1239(Part1) of following size including provision of specials and other appurtenant works such as fixing of air valve, sluice valve etc. at suitable points including making scouring arrangment at suitable location by fixing tee & gate valve etc. complete and also testing and commissioning of laid pipe line including supply of all materials, labour, T&P etc. complete.

100 mm dia GI (M) confirming to IS:1239(Part1)

80 mm dia GI (M) confirming to IS:1239(Part1)

50 mm dia GI (M) confirming to IS:1239(Part1)

Dismantling and Relaying of following dia screwed and socketed G.I. Pipes, specials and fittings including taking out of dismantled G.I. pipes and specials from trenches and stacking them properly within 50m but excluding the cost of earth work including laying of dismantled pipe with required specials and fittings as per instruction of Engineer Incharge (Note :- This item shall be paid with the condition that the recovered pipe from dismantling is reusable.)

32 mm dia GI (M) confirming to IS:1239(Part1)

25 mm dia GI (M) confirming to IS:1239(Part1)

20 mm dia GI(M) confirming to IS:1239(Part1)

Design, testing bearing capacity of soil & construction of Pump House Cum Guard Room as follows made up of Brick masonry with R.C.C. flat / slope roof at IPS and other appurtenant works as per approved design & drawing including supply of all materials, labour, T&P etc. complete including cartage of materials

At IPS (8.00 x 7.00 x 4.50) mtr.

Design, testing bearing capacity of soil for construction of Staff Quarter of following type made up of Brick masonry with R.C.C. flat roof at IPS-II and other appurtenant works as per approved design & drawing including supply of all materials, labour, T&P etc. complete including cartage of materials

Type I (Plinth Area – 43.00 Sqm)

Design, testing of bearing capacity of soil and construction of R.C.C. CWR of following capacities ( in kiloliters ) with including supply of necessary scaffolding, shuttering and other accessories along with construction of valve chambers, supply and Fixing of M.S. ladder outside the tank and alluminium ladder inside of the tank, M.S. M.H. cover with locking arrangement, lightning conductor as per electricity rules, water level indicator,supply and fixiing of outlet, inlet, over flow and wash out pipes with necessary sluice valves, pipe pieces (including cost of materials) flooring 0.60 M wide apron, painting on tank body vertical pipes, ladder, M.S. M.H. cover, ventilator column etc. complete with approved water proofing (apex) / enamal paint, testing, filling water for testing purpose etc. including supply of vertical pipes and specials and also connection with the existing network along with carting of all materials including supply of all materials, labour, T&P etc. complete(For CWRs 50KL and above in all Areas ).

Clear Water Sump 50 KL Capacity at IPS

Clear Water CWR 150 KL Capacity at TOP CWR

Design and Construction of boundary wall made up of half brick masonry and column of full brick masonry 1.5 m height with suitable foundation detail at IPS and Top CWR including supply of all material, labour, T&P etc. complete for proper completion of work including cartage of material.

Supply and Fixing of barbered wire fencing with suitable angle iron post as per approved design & drawing at IPS and Top CWR campus including supply of all materials, labour, T&P etc. complete including cartage of materials

Supply and fixing of M.S. Iron Gate 2.0 m wide & 1.5 m height with pillers as per approved design & drawing including supply of all materials, labour, T&P etc. complete including cartage of materials

Construction of 1.0 m wide Briddle Path for cartage of materials between intake work site and road head and upto Top CWR including necessary side protection with R.R. 1:6 Stone Masonry (Avg. height 30 cm on both sides) including dressing & leveling of ground including supply of all materials, labour, T&P etc. complete including cartage of materials

Construction of 3.5 m wide Light vehicle Road for cartage of materials between intake work site, Pumping Station site and road head as per PWD specification and also technically designed including necessary side protection with R.R. 1:6 Stone Masonry including dressing & leveling of ground including supply of all materials, labour, T&P etc. complete including cartage of materials

Supply and fixing of following size of CS D/F Reflex Valve as per BS 1868 / API 6D for Clear Water Rising Main including cartage of materials.(Kirloskar or KSB or Equivalent).

100 mm dia. Cast steel Reflex / Swing Check Valve, Class 150

Supplying, Carting, fixing of following size of CI/DF Sluice / Gate valve of rising main as per IS: 788/60 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. Confirming to IS: 14846-2000(Kirloskar or KSB or Equivalent).

100 mm dia. Cast steel Sluice/Scour Valve (WP 15kg/cm2)

Supplying, Carting, fixing of following size of CI/DF double acting Air valve of rising main as per IS 14845: 2000 with caps etc flanged drilled as per IS 1538/70 ISI marked etc. at suitable points including supply of all materials, labour and T&P etc. complete.

Air valve 20mm (upto 10 kg)

Fire Hydrant Valve Confirming to IS: 5290 (Flanged)

Fire Hydrant (80 mm dia.)

ACTARIS Bulk Water Meters model Woltex Class B magnetically coupled pre equipped for remote reading. Confirming to IS: 779-1994

Supply and fixing of following size of Wheel / Gate Valve as per IS:788/1997 including cartage of materials.

100 mm dia (10 Kg/Sqm W.P.)

Construction of following Valve chamber in R.C.C. 1:1.5:3 along with fixing of manhole cover on top including supply of all materials, labour, T&P etc. complete required for proper completion of work.

Sluice/ Scour/ Reflex Valve Chamber (Size 0.60 m x 0.60 mx 0.75m)

Air Valve Chamber (Size 0.60 m x 0.60 mx 0.75m)

Wheel Valve Chamber(Size 0.60 m x 0.60 mx 0.75m)

Fire Hydrant Chamber(Size 0.60 m x 0.60 mx 0.75m)

Water Meter Chamber (Size 0.60 m x 0.60 mx 0.75m)

Construction of Anchor Block/ RCC Pillars as per requirement/designed in R.C.C. 1:1.5:3 along the alignment of Raw Water Rising Main/ Clear Water Rising Main including supply of all materials, labour, T&P etc. complete including cartage of materials.

Making connection with the existing M.S. Galvanised mains of upto 25mm nominal dia, including cutting and threading of pipe, bailing out water, fixing, if required, specials and testing etc. complete, but excluding cost of insertion pipes and specials besides boring out (and also subsequent back fill) existing main.

Protection works for Site Development, Intake Work,Raw Water Rising Main, Clear Water Reservoir, Pump House, Staff Quarter, Sump, Service Reservoir etc. as per site conditions wherever necessary as follows :-

Excavation in following strata for foundation requiring the use of special T&P such as Pick Axes, Sabbels etc. or by blasting or bycrow bars with a lift up to 1.5 m and laid upto 30 m including refilling, watering and ramming of excavated earth into the trenches and removal and disposal of surplus earth upto a distance of 60 m including supply of all materials, labour, T&P etc. complete including cartage of materials it is estimated that 75% excavation will be in soil mixed with shingle, bazri, boulder and rest of 25% will be in medium rock.

Soil mixed with boulder

Medium rock

Providing and laying of wire crates 3.00x1.50x1.50 in size with a 8 gauge BWG GI wire conforming to IS: 280 & IS:4826 in 150mm x 150mm mesh laid with stone boulders weighing not less than 25 kg each.(As per PWD Uttarakhand Specification)

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

P.C.C. 1:2:4 with 20 mm gauge stone ballast including supply of all materials, labour, T&P etc. complete.

Random Rubble stone masonary in 1:6 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.

Electrical and Mechanical Works

I- Well- Submersible pump motor set

Addition/Deduction of rate for per 10 mt change in pumping head (I-Well)

Control Panel cum starter

10 mm² Al. conductor 3.5 core XLPE cable of 1.1 KV grade

4 mm² Cu conductor 3 core submersible cable of 1.1 KV grade

Jointing material such as lugs, tape etc.

Earthing

80 mm dia C.I D/F Sluice valve of Class PN 1.0

80 mm dia C.I D/F reflex valve of Class PN 1.0

80 mm dia column pipe - 2 mtr length

PIPE & FITTING

GAUGES

Spare pump motor set

Rubber resistance sheet

Tools

Chain pulley 1 tonne capacity

Testing at works

Painting

IPS- Centrifugal pump set

Addition/Deduction of rate for per 10 mt change in pumping head (IPS)

Motor

Base Plate

FULLY AUTOMATIC AUTO TRANSFORMER STARTER

Control Panel

70 mm² Al. conductor 3.5 core XLPE cable of 1.1 KV grade

35 mm² Cu conductor 3 core submersible cable of 1.1 KV grade

Jointing material such as lugs, tape etc.

Earthing

100 mm dia C.I D/F Sluice valve of Class PN 1.0

80 mm dia CS DF sluice valve Class 300 ASA

80 mm dia C.S D/F Reflex valve of Class 300 ASA

PIPE & FITTING

GAUGES

Spare pump

Spare motor

Rubber resistance sheet

Tools

H.O.T. Crane 2 Tonne

Testing at works

Painting

SITC of 150 KVA 3 phase, servo voltage stabilizer

GSM based remote terminal unit

GSM based wireless communication hardware

Electromagnetic insertion type flow meter 80 mm

Level transmitter

Energy meter

Valve actuator 80 mm

Actuator panel

Hard wire timer circuit

Pressure transmitter

Auto phase reversal for I-well

Auto phase reversal for IPS

Isolation transformer

Over voltage & under voltage trip protection

2 Core X 1.5 PVC quoted flexible screen cable

4 Core X 2.5 sq.mm copper power cable

4 Core X 1.5 sq.mm unscreened copper power cable

10 Core X 1.5 sq.mm unscreened copper power cable

Accessories (mentioned in site requirement)

Customization of software & Integration with SCADA station

Erection commissioning of IRTU/PLC

Erection commissioning of flow meter

Erection commissioning of actuator

Erection commissioning of pressure sensor

Wiring for light, fan point

Wiring for circuit/submain 2x2.5+1x2.5 sq mm

Wiring for circuit/submain 2x4+1x4 sq mm

Supply and fixing of 5 amp switch

Supply and fixing of 5 amp socket

Supply and fixing of power point

Supply and fixing of 8 way double door MCB box

Supply and fixing of MCB

Supply and fixing of DP isolator

Supply and fixing of bulk head

Supply and fixing of tubelight

Supply and fixing of 14 W CFL

Suppy and fixing of 23 W external LED fitting

Operation & Maintenance

cs.negi

M/s Govind Singh Bisht