NIT/BM/00145/WW/EO/2025-26

Supply of drinking water with all preventive measure to the user end from ESR/UGR/Primary Grid with maintaining adequate water pressure within Zone-7 ( From Srirampur WTP upto Bally Khal)

Cutting & picking up existing metalled black top portion of road surface to an average depth of 300 mm by using Jack hammer with all necessary tool and plant including reening the serviceable materials & stacking within a lead of 75 mtr. all complete as per direction of the Engineer-in- Charge. [UD & MA Deptt. Water SupplyWorks -2018-19; Page-2;Item-1.5]

Dismantling all types of plain cement concrete works,stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m. Upto 150 mm thick. Location:- [PWD Bldg.WC(ii)1.11.2017 , P-10, Item-2]

Earth work in excavation of foundation trenches or drains, in all sorts of soil (including mixed soil but excluding laterite or sandstone) including removing, spreading or stacking the spoils within a lead of 75. as directed. The item includes necessary trimming thesides of trenches, levelling, dressing and ramming the bottom, bailing out water as required complete. [Page-1, It-2, PWD, WC-II (B) 1.11.2017] a) Depth upto 1.50 m:

b) Beyond 1.5 M to 3.0 M below G.L.

Hire and labour charges for shoring work (including necessary close plank walling, framing, Eucalyptus/Jhou bulla piling, strutting etc) complete as per direction of the Engineer-in-charge for foundation excavation (vertical surface are in contact with supported earth is to be measured.) (This item should be executed on specific direction of the Enginner in charge). [PWD(B), WC-II, 1.11.2017, Page-3, It-6(a) & (b)] a) Depth upto 1.5 M

b) Depth beyond 1.5 M & upto 3 M

Hire and labour charges for 100 mm dia bamboo railing on Jhau/Eucalyptus post 1.40 m above G.L and 0.60 m below G.L tied strongly with bamboo railing with coir rope, digging holes for posts in any sort of soil or concrete surface packing the sides etc including cost of carriage of all materials and labour complete including cost of restoration to the damages of the ground to its original condition as per direction of Engineer- in- charge after removing the barricade. (Cost of restoration to be paid separately) (a) 100 mm. dia bamboo railing and 150 mm. dia. Jhaubullah/Eucalyptus posts @ 1.80 m. apart ii)Railing with 3 rows. [PWD (B), WC-II, 1.11.2017, Page-269, It-2 (ii) ]

Dewatering by pumps including all leads, lifts and making all arrangements of disposal. where continuous flow of water from a source other than natural or ground water is encountered in case of emergency maintenance works related to leakage. breakage and making wet connections. [Note ;-In case of any other situation demanding such emergency dewatering. use of this item is to be approved by the Superintending Engineer/Tender Accepting Authority. This item shall be executed on the specific direction duly supported by proper clarification of the E.I.C. who will be satisfied in absolute discretion that such work has not been necessitated due to any natural source of water or any fault of the Contractor] [Ref.UD & MA Deptt. Water SupplyWorks -2018-19, Pg.-27, It-7.2] i)

Hire & labour charges for diesel generating set for lighting including fuel, 300M wire, 11 points with 200 Watt bulb with post for hanging & maintaining the same for day & night for the period. [Ref. UD &MA (W.S.W) 2018-19, Pg.-4, It-1.13]

Supplying, fitting and fixing of C.I. Mechanical Compression Split Collars suitable for instantaneous repair of longitudinal and vertical splits in C.I. Spun Pipes (as per IS: 1536) and D.I. Pipes (as per IS: 8329) by encasing the damaged part completely. The Split Collars to be supplied complete with Sealing Rubber Gasket of EPDM quality (IS:5382/1985 Type-4), Cast Iron Follower Glands and Mild Steel Nut Bolts (Zinc Coated). The whole assembly should be mechanically and hydraulically tested to the provisions as laid down in IS: 1538. Fitting and fixing should be in proper position with proper care of main pipe line for leak proof condition. [Ref: UD & MA Deptt. Water SupplyWorks -2018-19; Page-34;Item-7.22] Location: At several spot as required Diameter in mm. with minimum barrel pipe length in mm. Total : Dia 600mm with length 400mm.

Supplying including cost of installation of M.S. Patch Clamps suitable for instantaneous repair of horizontal cracks in C.I. Spun Pipes (as per IS: 1536) and D.I. Pipes (as per IS: 8329). The Clamp constitutes of two semicircular halves made out of 5/6 mm thick Steel Plate duly contoured to match the circumference of the pipes. The Clamp should be with suitable rubber lining / trey so that on fixing over the damaged pipe, it instantly repairs longitudinal cracks or hole in the pipe body. The length of the Clamp should be 300 mm up to 300 mm nominal dia. and 500 mm in case of pipes of larger nominal diameter of pipe. Sealing Rubber Gasket should be of EPDM quality and Nut Bolts should be Zinc coated. Fitting and fixing should be in proper position with proper care of main pipe line for leak proof condition. [Ref: UD & MA Deptt. Water SupplyWorks -2018-19; Page-36; Item-7.25] Location: At several spot as required Total : 600mm Dia -

Supplying including cost of installation of C.I. Leak Repair Clamps suitable for permanent repair of leakages in Socket / Spigot joints in C.I. Spun Pipes (as per IS: 1536) and D.I. Pipes (as per IS: 8329). The Clamp consists of two Cast Iron Rings supplied in overlapping semi circular halves which compress a specially shaped / contoured rubber gasket made of EPDM quality (IS:5382 Type-4) on the socket face making the Socket / Spigot Joint water right at the operating pressure. The Clamp to be supplied complete with Rubber Gaskets made of EPDM quality and coated Nut Bolts as per manufacturer specification. Fitting and fixing should be in proper position with proper care of main pipe line for leak proof condition. [Ref: UD & MA Deptt. Water SupplyWorks -2018-19; Page-36/37 ; Item-7.26] Location: At several spot as required Total : 600mm Dia -

Lead jointing to C.I pipes and specials with supply of lead and spun yarn all complete to make the joint water tight at required hydraulic pressure as per specification & direction of the Engineer-in-charge. (Lead shall be supplied supplied departmentally departmentally to the Agency at specified specified Issue rates and cost thereof shall be recovered from the. works Bill of the Agency] [Ref: UD & MA Deptt. Water SupplyWorks -2018-19; Page-7 ; Item-2.1.3] Location: At several spot as required Total : 600mm Dia -

Filling in foundation or plinth by silver sand in layers not exceeding 150 mm as directed and consolidating the same by thorough saturation with water, ramming complete including the cost of supply of sand. (payment to be made on measurement of finished quantity) [ UD & MA, Water Supply-2018-19 , Page-2, It-1.3)

Earth work in filling in foundation trenches or plinth with good earth, in layers not exceeding 150 mm. including watering and ramming etc. layer by layer complete. (Payment to be made on the basis of measurement of finished quantity of work) (a) With earth obtained from excavation of foundation N.B:- Item-1+Item-2+ Item-3(a & b) - Item-24 [Ref: P.W.D. (Bldg.) W.C.II, 1.11.2017, Page-1, It.-3(a)]

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