Running maintenance of RWS scheme at Amarpur RD Block/SH- Maintenance and extension of PVC/ GI pipeline, installation of submersible pumpset, FHTC, post platform etc. in/c. all allied works at Purba Duluma, Paschim Duluma, Khedarnal, Natun Bazar VC a

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 i. 100 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.

Providing and fixing of UPVC reducer suitable for UPVC 'CM' casing or 'CS' casing or 'RS' pipes as per specification and ditection of the Engineer-in-charge. i) 150 x 100 mm dia.

Providing and fixing of UPVC end cap/well cap suitable for UPVC 'CM casing or 'CS' casing or 'RS' pipes as per specification and direction of the Engineer-in-charge. i) 100 mm dia.

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 arrangements for SBDTW as per specification and direction of the Engineer-in-charge. i) 150 mm dia.

Supplying and installation of water lubricated submersible pump having ISI mark of capacity 2000 GPH of total head upto 60mtr.Couple with submersible motor 3 HP suitable for 240voltage(+10% variation single phase 50HP,AC supply DOL starting method to run 2880 RPM along with 35mtr 2.5sqm,PVC insulated 3(Three)core flat copper cables including fitting fixing and lowering with 40mm dia GI pipe upto 100ft.(30.00mtr.)etc complete as per direction of the Engineer-in-charge(cost of 40mm dia GI and fittings will be paid seperately)

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

Supplying and fitting fixing of KIOSK(Size 450mm x 200mm x 850)fiited with 4 Nos support of 75mm x 75mm (^mm thick) MS angle of embedding with 1:2:4 cement concrete base(size:300mmx300mmx600mm) with proper locking arrangement and coating with anti corrosive paints(both inside and outside)in/c complete in all respect as per direction of the Engineer – in – charge.

Providing and fitting fixing of single phase motor starter panel unit 3.0HP capacity comprising with 2 plate conductor,over load relay,capacitor,volt meter of BCH/L&T make with necessary copper wire etc. complete as per direction of the Engineer-in-Charge.

Excavation trenches of required width for pipes, cables etc. including excavation for sockets, dressing of sides where required, ramming of bottoms, depth upto 1500 mm(slope 1 in 200) including getting out the excavated soil and backfilling of soil as required after laying of pipe line, in layers not exceeding 200mm in depth in/c consolidating each deposited layer by ramming, watering etc. and disposing of surplus excavated soil with all required leads as per chapter 2 of CPWD specification and direction of the Engineer-in -Charge. A) For UPVC pipes in new work. a) In all kinds of soil. i) For pipes not exceeding 90 mm dia.

i) For pipes exceeding 90 mm dia but not exceeding 300 mm dia.

Providing, fixing and laying rigid UPVC pipes conforming to IS: 4985 jointing with couplers of same class conforming to IS:10124(Pt-II) with solvent cement conforming to IS: 14182 including testing of joints complete(but excluding the cost of specilas like bend, tees etc. which will be paid separately) as per CPWD specification and direction of the Engineer-in-charge. A. Class-3(Working pressure 6.00 kg/cm2) i) 40 mm OD

i) 90 mm OD

i) 110 mm OD

Providing and fixing G.I pipes medium class as per IS: 1239 with latest ammendment complete with G.I fittings including trenching and refilling, cutting and making good the walls etc. complete as per CPWD specification and direction of the Engineer-in-charge. A. External work i) 25 mm dia nominal bore

ii) 40 mm dia nominal bore

Providing, fixing and laying fabricated UPVC bend of required degree conforming to IS : 10124 ( part 8 / 9 / 10 / 11 / 12 / 13 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge. i)90 mm dia

ii)110 mm dia

Providing, fixing and laying fabricated UPVC end cap conforming to IS : 10124 ( Part 4 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge. i) 90 mm dia

ii) 110 mm dia

Providing, fixing and laying fabricated UPVC equal tee conforming to IS : 10124 ( Part 5 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge. i)90 x 90 mm dia

ii)110 x 110 mm dia

Providing, fixing and laying fabricated UPVC straight reducer conforming to IS : 10124 ( Part 3 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge . i)110 x 90 mm dia

ii)140 x 110 mm dia

Making road crossing by horizontal boring for smooth laying of UPVC/CI/DI/GI pipes etc. of required dia complete as per specification and direction of the Engineer-in-charge. a. By manual means

Providing & laying of flexible PVC pipe(conforming to IS:7634) complete including earth work as per specification and direction of the Engineer-in-charge(cost of fittings will be paid separately). a) 15 mm dia

Providing and fixing in position Precast RCC hydrant post of size 100 mm dia ( made with reinforced cement concrete 1 : 1.5 : 3 ( 1 cement : 1.5 fine sand : 3 graded well burnt brick aggregate 1st class 12 mm nominal size) and steel reinforcement ( TMT bars )3 nos 8 mm dia 950 mm long and 7 Nos 6 mm dia ties including plastering the surface with 6 mm thick cement mortar 1 : 3 ( 1 cement: 3 sand ) finished with a floating coat of neat cement including providing & embedding 15 mm dia G.I. pipe (medium class as per IS : 1239 ) with necessary GI fittings like 2 Nos elbow, 1 no socket, 2 nos nipple 225 mm long and fitting fixing of PVC bib cock with GI socket complete with all earth work required including refilling etc. complete as per approved drawing ( Drawing No-06/CE/ACE/P&DU/DWS/2022-23), specification and direction of Engineer-in-charge.

Providing and fixing in position Precast RCC platform of size 900 mm x 900 mm x100 mm with curb of size 75 x 75 mm keping an opening of 200 mm wide for surface drain of 60 cm length of size (200 mmx150 mm) in a suitable place for draining out of grey water (made with cement concrete 1:1.5:3 (1 cement: 1.5 sand: 3 graded well burnt brick aggregate 12 mm nominal size) and steel reinforcement(TMT bars ) 6 nos. 8 mm dia in both direction including plastering the exposed surface with 6 mm thick cement mortar 1:3 (1 cement :3 sand) for platform &12 mm cement plaster(1:4) (1 cement :4 sand) for surface drain finished with a floating coat of neat cement complete with all earth work required including refilling etc. complete as per approved drawing (Drawing No-06/CE/ACE/P&DU/DWS/2022-23), specification and direction of Engineer-in-charge.

Providing and fixing brass ferrule with C.I. cover conforming to IS : 2692 including boring and tapping the main as per CPWD specification and direction of the Engineer - in - charge. a) 10 mm nominal bore

Providing and fixing GI union as per CPWD specification and direction of the Engineer-in-Charge. i)15 mm dia.

ii)40 mm dia.

Providing and fixing GI Bend/ elbow in the pipe line including testing of joints complete as per CPWD specification and direction of the Engineer-in-Charge. a) 15 mm dia

b) 40 mm dia

Providing and fixing GI socket as per CPWD specification and direction of the Engineer-in-Charge. i) 15mm dia.

ii) 40 mm dia.

Providing & fixing G.I. Equal Tee with the pipeline in/c. testing of joints complete as per CPWD specification and direction of the Engineer-in-charge. a) 40 x 40 x 40mm dia.

Providing & fixing G.I. Un- Equal Tee with the pipeline in/c. testing of joints complete as per CPWD specification and direction of the Engineer-in-charge. a) 40 x 40 x 15 mm dia.

Providing and fixing G.I. Full way valve as per CPWD specification and direction of the Engineer - in - charge. a) 50 mm dia.

Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering - -All work upto plinth level i) 1:3:6 ( 1 Cement: 3 fine sand : 6 graded well burnt brick aggregate 40 mm nominal size)

Providing & fitting fixing PVC/plastic bib cock conforming to IS: 9763 in hydrant points at different location as per specification and direction of the Engineer-in charge. (i) 15 mm dia PVC/plastic bib cock.

Providing and fixing G.I. Reducer with the pipe line including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge. (i) 40 x 15 mm dia.