WS Scheme of JJM in 22-23/Const. of 0.55 MGD capacity SWTP based on existing river Thalgang at Tarakpur GP of Kadamtala Block/SH- Providing,laying distribution pipeline providing domestic connection of DWS Sub Division Dharmanagar (Gr-IV)/2nd Call

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 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 B). For G.I. / C.I. / D.I. pipes in new work a). In all kinds of soil iii) For pipes exceeding 300 mm dia but not exceeding 600 mm dia

Providing and laying S & S Centrifugally Cast ( Spun ) Ductile Iron Class K-7 Pipes conforming to IS : 8329 as per CPWD specification and direction of the Engineer - in - charge. viii. 350 mm dia Ductile Iron Class K-7 pipes.

Charges for push-on ( Tyton ) joints to centrifugually ( Spun ) cast iron pipes or ductile iron pipes including testing of joints and including the cost of rubber gasket as per chapter 20 of CPWD specification and direction of the Engineer - in - charge. viii. 350 mm dia Joints

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 chapter 20 of CPWD specification and direction of the Engineer - in - charge. vi)x. 350 mm dia. A. PN - 1.6

Providing and fixing C.I. double action air valve of approved quality with bolts, nuts, rubber insertions etc. complete as per CPWD specification and direction of the Engineer - in - charge. ( The tail pieces, tapers etc if required will be paid separately). ii) 150 mm dia

Charges for cutting D.I. pipe with steel saw by manual means as per CPWD specification and direction of the Engineer - in - charge. viii. 350 mm dia

Providing and laying D.I. specials of class K - 12 suitable for push -on jointing as per IS : 9523 as per chapter 20 of CPWD specification and direction of the Engineer - in - charge. ii. Above 300 mm dia.

Constructing masonry Chamber 120 x 120 x 100 cm, inside with brick work in cement mortar 1 : 4 ( 1 cement : 4 fine 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 fine sand : 4 brick aggregate 1st class 20 mm nominal size ) necessary excavation foundation concrete 1 : 5 : 10 ( 1 cement : 5 fine sand : 10 brick aggregate 1st class 40 mm nominal size ) and inside plastering with cement mortar 1 : 3 ( 1 cement : 3 fine sand ) 12 mm thick finished with a floating coat of neat cement complete as per standard design, CPWD specification and direction of the Engineer - in - charge. A). With First class bricks

Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering – a) All work upto plinth level: i) 1:2:4 ( 1 Cement: 2 fine sand : 4 graded stone aggregate 20 mm nominal size)

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