Maintenance of pipe line by repairing of leakage and washing of existing DTW schemes Domestic Water supply connection to individual house hold in different locations of BMC area under DWS Sub-Division Belonia during the year 2025-26.

Charge for repairing of leakage in UPVC/HDPE pipeline with PVC coupler and solvent cement etc including necessary earth excavation back filling of soil as required after laying of pipeline, in layers not exceeding 200mm in depth including consolidating each deposited layer by running watering etc. complete as per specification and direction of the Engineer-in-Charge.

i) 140 mm OD

ii) 110 mm OD

iii) 90 mm OD

Charges for cutting D.I. pipe with Mechanical cutter as per CPWD specification and direction of the Engineer - in - charge.

i) 80 mm dia

ii) 100 mm dia

iii) 125 mm dia

iv) 150 mm dia

v) 200 mm dia

Providing and fixing G.I Nipple of medium class as per CPWD specification and direction of the Engineer-in- Charge. i) 15 mm dia 150 mm long

Providing and fixing G.I Bend /Elbow in the pipe line including testing of joints complete as per CPWD specification and direction of the Engineer-in- Charge. i) 15 mm dia

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

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

i) 15 mm dia

i) 25 mm dia

Providing and fixing brass ferrule C.I mouth cover conforming to IS:2692including boring and tapping the main as per CPWD specification and direction of the Engineer-in-Charge.

i)15 mm nominal bore

ii) 10 mm nominal bore

Providing and laying of flexible PVC pipe(Conforming to IS: 7634) complete as per CPWD specification and direction of the Engineer-in- Charge.(cost of earth work and fittings will be paid separately).

i.15 mm dia

iii.25 mm dia

Providing and fitting fixing PVC/plastic bibcock conforming to IS: 9763 in hydrant points at different location as per direction of the Engineer-in- Charge. i) 15 mm dia PVC/plastic bibcock

Charge for laying S & S centrifugally cast(Spun) Ductile iron class K-7pipes conforming to IS : 8329 as per CPWD specification and direction of the Engineer-in- Charge.

i)80mm dia

ii) 100 mm dia

iii) 150 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 the direction of the Engineer-in-charge. a) By Manual means

Providing and fixing of G.I tyton collar in/c flange (two part ) With rubber gasket fitted with M.S flat and M.S square bar at both ends including nuts, bolts, washer and Painting with anticorrosive black bit mastic point etc complete as direction of the Engineer-in-charge.

i.100mm dia

ii.150 mm dia

iii.200 mm dia

Providing and fitting fixing of tyton tee joint two part in/c flange joint and welding of M.S flat Providing rubber gasket of SBR quality Painting with anticorrosive black bit mastic point and fitting fixing with nuts , bolts etc complete as direction of the Engineer-in-charge.

a) 150 x 150 x 150 mm dia

b) 200 x 200 x 150 mm dia

b) 200 x 200 x 200 mm dia

Disinfecting C.I. / D.I. water mains by flushing with water containing bleaching powder at 0.5 gms per litre of water and cleaning the same with fresh water, operation to be repeated three times including getting the sample of water from the disinfected main tested in the DWS laboratory as per IS:2800 and direction of the Engineer - in - charge.

i) 80 mm dia

ii) 100 mm dia

iii) 150 mm dia

Excavating trenches of required width for pipes, cables etc. including excavation for sockets, dressing of sides where required, ramming of bottoms depth upto1500mm including getting out the excavated soil and backfilling of soil as required after laying of pipeline, in layers,not exceeding 200 mm in depth including consolidating each deposited layer by ramming, watering etc. and disposing of surplus excavated soil with all required leads as per direction of the Engineer-in- Charge . For UPVC pipes in new work a) In all kinds of soil

i) For pipes not exceeding 90 mm dia

ii) For pipes exceeding 90 mm dia but not exceeding 300 mm dia

Providing and fixing C.I. sluice valves ( with cap ) complete with bolts, nuts, rubber insertions etc. ( the tail pieces if required will be paid separately ) as per CPWD specification and direction of the Engineer - in - charge. A. PN - 1.6

i) 100 mm dia.

ii) 150 mm dia.

iii) 200 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 specials 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

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

Charges for making hole by drilling and making thread by thread bit in the CI / DI pipe as per specification & direction of the Engineer-in-charge. i) 10 mm dia nominal bore

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. i. 10 mm dia.

Providing and laying flexible PVC Pipe (conforming to IS:7634) complete as per specification and direction of the Engineer-in-charge(cost of earth work and fittings will be paid seperately) i)15 mm dia

Providing and fixing G.I. pipes medim class as per IS : 1239 with latest amendment 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.

i) 15 mm dia. nominal bore

ii) 40 mm dia. nominal bore

Providing and fixing G.I. Nipple of medium class as per CPWD specification and direction of the Engineer - in - charge. i. 15 mm dia150 mm long

Providing and fixing G.I. Bend /elbow in the pipe line including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge. i. 15 mm dia.

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

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

Providing and fitting fixing PVC/plastic bibcock conforming to IS: 9763 in hydrant points at different location as per direction of the Engineer-in- Charge. i) 15 mm dia PVC/Plastic bibcock

Excavating trenches of required width for pipes, cables etc.including exacavation 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 pipeline, in layers not exceeding 200 mm in depth including 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

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold-water supply including all CPVC plain & brass threaded fittings This includes jointing of pipes & fittings with one step CPVC solvent cement, trenching, refilling & testing of joints complete as per direction of Engineer in Charge. External work i) For 15 mm nominal outer dia. Pipes.

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.

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. -All kinds of soil cum

Providing and fixing brass stop cock of approved quality : 15 mm nominal bore

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