Construction of 01 (one) no. Small bore tube well and installation and commissioning of 5000 Ltr/hr capacity Iron Removal Plant (IRP), Semi Parmanent Pump Shed and all allied work etc

Drilling and boring pilot hole in any soil strata by manual means, collection of soil samples of different strata met with during drilling at various suitable levels, preservation of samples in polythene bags / sample boxes and disposal of excess soil or mud, including the cost for water etc. as required to maintain the pilot hole properly as per specification and direction of the Engineer - in - charge.

i) 100 mm dia

Reaming of pilot hole to an enlarged bore hole in any soil strata by manual means, disposal of excess soil or mud, including the cost for water etc. as required to maintain the bore hole properly as per specification and direction of the Engineer - in - charge.

i) From 100 mm dia pilot hole to 250 mm bore hole

Providing & lowering of UPVC pipe as per IS:12818 after washing of the bore hole by manual means as per specification and direction of the Engineer - in - charge.

A) 'CM' Casing pipe

i) 150 mm dia

ii) 100 mm dia

B)RS Pipe

100 mm dia

Providing and fixing of UPVC end cap suitable for UPVC 'CM' casing or 'CS' casing or 'RS' pipes as per specification and direction of the Engineer - in - charge.

100 mm dia

Providing and fixing of UPVC reducer suitable for UPVC 'CM' casing or 'CS' casing or 'RS' pipes as per specification and direction of the Engineer - in - charge.

150 x 100 mm dia

Providing and shrouding of the deep tube well assembly with washed pea gravels ( 2.0 - 4.75 mm effective size ) as per specification ( IS : 4097) and direction of the Engineer - in - charge. (A) with contractor RIG

(i) with pea gravels obtained from Durgapur, West Bengal.

Providing and fixing of housing clamp ( made with 12 mm thick MS sheet ) along with well cap (made with 10 mm thick MS sheet) with necessary arrangement for SBDTW as per specification and direction of the Engineer-in-charge.

150 mm dia

Washing and development of tube well by using hand pump or by any suitable method and testing of the well as per specification and direction of the Engineer - in - charge.

Supplying and installation of water lubricated subermissible pump of Duke make(Model No. DSP4RFH05) having capacity 2000 GPH at total head of 45 mtr. Coupled with submerssible motor suitable for 240 volts (+10% verification) single phase 50 HP. AC suppluy DOL starting method to run at 2880 RPM along with 35 mtr. 2.5sqm, PVC insulated 3 core flat cable conforming to IS code and cable in/c fitting , fixing and lowering 40 mm dia GI pipe upto 100 ft.(30 mtr) etc. complete as per direction of the Engineer-in-charge.

Providing & fitting fixing of different capacity 230 volt, single phase submersible pump starter BCH/L&T,AB make as per specification & direction of the Engineer-in-charge. i) 2 HP

Providing & fitting fixing steel sheet enclosed switch fuse unit (suitable for DIN fuses), tripple pole with neutral link (TPN) current range 100 amps , 415/500 volt, L&T/Havells/HPL make etc complete as per specification & direction of the Engineer-in- charge.

i) 32 amps (SBDTW)

Providing and laying of flexible PVC pipe (conforming to IS:7634) complete in/c earth work as per specification and direction of the Engineer -in-charge (cost of fittings will be paid separetely)

i) 15 mm. nominal

Providing and fitting fixing of brass fullway valve with handle in the GI pipe line including cutting, threading etc. complete as per CPWD specification and direction of the Engineer - in - charge.

a) 40 mm dia

Providing and fixing G.I Union as per CPWD Specification and direction of the Engineer-in-charge.

Providing and fixing brass ferrule with C.I. cover conforming to IS :2692 in/c boring and tapping the main as per CPWD Specificatio and direction of the Engg-in-charge.

Providing and fixing G.I. equal Tee with the pipe line including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge.

i) 40 X 40 X 40 mm. dia.

Providing & fixing C.I Bib cock (long handle) as per CPWD specification and direction of the Engineer-In-Charge.

15 mm dia

Providing and fixing GI unequal TEE with a pipeline in/c testing of joints complete as per CPWD specification and direction of Engineer-in-charge.

A) 40x40x15 mm dia

Providing and fixing G.I. socket as per CPWD specification and direction of the Engineer - in - charge. a) 15 mm. dia.

Providing and fixing G.I Pipes of medium class as per IS:1239 with latest amendmend complete with G.I fitings including tenching and refilling cutting and making good the walls etc. Complete as per specification and direction of the Engineer in charge.

i) 15 mm nominal bore

v) 40 mm nominal bore

Providing and placing on terrace (at all floor levels) polyethylene water storage tank ISI : 12701 marked with cover and suitable locking arrangement and making necessary holes for inlet, outlet and overflow pipes but without fittings and the base support for tank.

Providing ,fixing of GI nipple of medium class as per CPWD specification and direction of the Engg in charge

i) 15mm dia 75mm long

Providing ,fixing of GI bend /elbow in the pipe line including testing of joints complete as per CPWD specification and direction of the Engg in charge

i) 15mm dia

SH:- Iron Removal Plant Providing, installation and commissioning Iron Removal Plant comprising of Iron Removal Filter composite pressure vassel made of corrosion resistant high quality F.R.P filter media comprises silica dioxide 90% manganese dioxide and other non-licing chemical . All chemicals are infused and there by ensure long life of media (5-8 years) fitted with and on site chlorine generator (10mg/Hr.) Electro chlorinator producing hypo - chlorite solution using common solt as raw materiald for oxidation and disinfection through - metering pump and multiport valve provitaed to operate the system very esily by chainging the knob into back wash close filtration mode whenever needed including fitting fixing of necessary pipe line for raw water, interconnection all chamber delivery out- let as required with suitable Engineering plastic as per direction of the Engineer - in - charge.

A) Supplying & installation of 5000 Ltr/Hr. capacity iron plant including installtion of 15 gm/hr. electro chlorinator

SH:- Semi Parmanent Pump Shed including boundary fencing, etc. Earth work in excavation by mechanical means (Hydraulic excavator)/ manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan) including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.

a) All Kinds of Soil

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m.

A)All kinds of soil

Supplying and filling in plinth, under floor, foundations etc. with sand (fine) from local quarry with all lifts including spreading in horizontal layers, watering, grading to required slope, ramming, consolidating and compacting each layer by using plate compactor or by any suitable method complete.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering. a) All work upto plinth livel

i) 1:2:4 ( 1 Cement: 2 fine sand : 4 graded brick aggregate 20 mm nominal size) cum well burnt(For Rcc colmn and slab=5.90cum)

ii) 1 : 3 : 6 ( 1 cement : 3 fine sand : 6 graded well burnt brick aggregate of 20 mm nominal size)

First class brick work in foundation and plinth including cost of all materials as required complete:

i) In cement mortar 1:4 ( 1 cement : 4 fine sand )

Reinforced cement concrete work in beams, suspended floors, roofs having slope upto 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases upto floor five level excluding the cost of centring, shuttering, finishing and reinforcement-

i) 1:2:4 ( 1 Cement: 2 fine sand : 4 graded well burnt brick aggregate 20 mm nominal size

Centering shuttering including struttings, propping etc. and removal of form work for:

ii) Lintels, beams, plinth beams, girders, bressumers and cantilevers with wooden plank

Reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth Level level

i) Thermo-Mechanically Treated bars of gradeFe-500D or more ( Forr RCC col slab beam 5.90x120=708.00kg)

Steel work in built up tubular (round, square or rectangular hollow tubes etc.) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete.

i) Hot finished welded type tubes

Providing and fixing M.S. round holding down bolts withnuts and wahser plates complete as per standard design.

Providing and laying cement concrete 1:2:4 (1 cement: 2 fine sand : 4 graded stone aggregate 20 mm nominal size) flooring finished with a floating coat of neat cement including cement slurry, rounding of edges and strips and cost of glass strips etc. complete.

i) 40 mm thick

Providing corrugated G.S. sheet roofing including vertical/curved surface fixed with polymer coated J or L hooks, bolts and nuts 8 mm diameter with bitumen and G.I. limpet washers or with G.I. limpet washers filled with white lead and including a coat of approved steel primer and two coats of approved paint on overlapping of sheets complete (up to any pitch in horizontal/ vertical or curved surfaces) excluding the cost of purlins, rafters and trusses and including =cutting to size and shape wherever required.

i) 0.63 mm thick Zinc Coating not less 275 Gm/m2

15 mm cement plaster on the rough side of single or half brick wall of mix

In Cement mortar 1:4 ( 1 cement : 4 fine sand )

Neat cement punning.

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade [Payment shall be made after submission of Test Certificate issued by the Manufacturer]:

Two or more coats on new work

Providing structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete as required

Providing and fixing hard drawn steel wire fabric of size 75 x25 mm mesh or other suitable size wire mesh to be fixed & firmly anchored to the concrete surface by means of "L" shaped mild steel shear key welded with existing reinforcement including the cost of materials, labour, tool & plants, as required and as per direction of the Engineer-in-charge.