KMC/EE/WS/C/I/65/2025-26/010

CHAPTER - I [ SUPPLEMENTARY ] EXCAVATION, SHORING, BAMBOO PILING, FENCING & SIGN BOARD, LIGHTING & SIGNALING AND SITE CLEANING ETC. 1.14 Signalling arrangement at both sides of site to avoid any accident during working period 4 nos. red flags during sunlight at 4 corners and 2 nos light (lamp) in other than sunlight.

CHAPTER - I [ SUPPLEMENTARY ] EXCAVATION, SHORING, BAMBOO PILING, FENCING & SIGN BOARD, LIGHTING & SIGNALING AND SITE CLEANING ETC. 1.5 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.

CHAPTER - I [ SUPPLEMENTARY ] EXCAVATION, SHORING, BAMBOO PILING, FENCING & SIGN BOARD, LIGHTING & SIGNALING AND SITE CLEANING ETC. 1.1 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 m. as directed. The item includes necessary trimming the sides of trenches, levelling, dressing and ramming the bottom, bailing out water as required complete. (a) Depth of excavation not exceeding 1,500 mm.

CHAPTER - I [ SUPPLEMENTARY ] EXCAVATION, SHORING, BAMBOO PILING, FENCING & SIGN BOARD, LIGHTING & SIGNALING AND SITE CLEANING ETC. 1.4 Excavation of trial pit (3.0 m x 1.0 m x (upto) 3.0 m) for fixing of pumping main, washout line raking every detection against damage of S.W. pipe line electrical cable etc. as underground obstruction including 37.5 mm timber shuttering, earth cutting, dewatering, barricading and back filling etc. as per directionj of E-I-C

CHAPTER - I [ SUPPLEMENTARY ] EXCAVATION, SHORING, BAMBOO PILING, FENCING & SIGN BOARD, LIGHTING & SIGNALING AND SITE CLEANING ETC. 1.18 Removal of rubbish, earth etc. from the working site and disposal of thesame beyond the compound, in conformity with the Municipal / Corporation Rules for such disposal, loading into truck and cleaning thesite in all respect as per direction of Engineer in charge.

CHAPTER - VII MISCELLANEOUS ITEMS 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]

CHAPTER - VIII SUPPLYING OF MATERIALS 8.3 All types of Ductile Iron (D.I) Specials (viz. Bend. Tee. Taper. Tail piece etc), size conforming to I.S. Specification No. 9523/2000 with cement mortar lining (inside) and bituminous coating (outside). (25% of payment will be held up till successful hydraulic testing) a) All Socket Tee 100 mm to 300mm dia.

CHAPTER - VIII SUPPLYING OF MATERIALS 8.3 All types of Ductile Iron (D.I) Specials (viz. Bend. Tee. Taper. Tail piece etc), size conforming to I.S. Specification No. 9523/2000 with cement mortar lining (inside) and bituminous coating (outside). (25% of payment will be held up till successful hydraulic testing) b) Doubled Socketed Bend 100 mm to 300mm dia

CHAPTER - VII MISCELLANEOUS ITEMS Supplying including cost of installation of C.I. Mechanical joint End Cap as dimensionally described in IS:13382/2004. Each Cap consists of one C.I. Body, one C.I. Follower Glands, one sealing Rubber Gaskets of EPDM quality (Conforming to IS: 5382/1985 Type-4) and Zinc coated M.S. Fasteners of adequate numbers. The whole assembly is mechanically and hydraulically tested to provisions as laid down in IS: 13382/2004.Diameter in mm 100

CHAPTER - VIII SUPPLYING OF MATERIALS All types of CI specials (viz. Bend. Tee. Teper. Tail piece. Collar. Bell mouth with Puddle coller etc. size conforming to IS specification 1538: 1993) b) Flanged socket spigot i) 80mm to 300mm

BUILDING WORKS ( C ) Brickworks,Concrete Works etc B. CONCRETE WORKS 1. Cement concrete with graded jhama khoa (30 mm size) excluding shuttering In ground floor and foundation (a) 1:3:6 proportion

BUILDING WORKS ( C ) BRICKWORKS, CONCRETE WORKS Etc. A. BRICK WORKS 1. Single Brick Flat Soling of picked jhama bricks including ramming and dressing bed to proper level and filling joints with local sand.

CHAPTER - VIII SUPPLYING OF MATERIALS 8.6Cost iron double flanged manually operated sluice valves generally conforming to IS 14846 : 2000, having four faces and spindle nut of gunmetal. inside screw non- rising type quality gunmetal /AISI 410 spindle: seat tested to 10kg/CM... and body tested to 15kg/CM..., flanges flat faced and drilled to 1.S.: 1538 : 1993. Painted black all over with asphalt base paint. Valves tested by closed end method. NB Diameter in mm 100

CHAPTER - II LAYING & JOINTING PIPES, SPECIALS ETC.2.1 C.I. / D.I. Pipe & Specials 2.1 C.I. / D.I. Pipe & Specials 2.1.7 Cutting of C.l/D.I pipes for fitting with pipes and-or specials of similar or dissimilar materials at the time of laying without damaging any part of the required length including taking out of the broken pieces from the trench and restacking the same at the specified location as per direction of the Engineer-in-Charge.D iameter in mm 100mm dia.

CHAPTER - I [ SUPPLEMENTARY ] EXCAVATION, SHORING, BAMBOO PILING, FENCING & SIGN BOARD, LIGHTING & SIGNALING AND SITE CLEANING ETC. 1.12 Supplying sign-board made of 25 mm thick sal plank with frame on all side of sal batten 50 mm x 32 mm with nailed on post 3.15m x 100mm x100mm and fitting fixing such with digging holes of dia 300 mm and depth 750 mm in all sorts of soil and repacking and consolidating the gap aroundthe post with cement concrete (1 : 3 : 6) painting 2 coats including cost of nails, bolts and nuts etc. complete in all respect as per direction of theEngineer-in-charge. Payment of concrete and painting to be made separately.(ii) 900 mm. x 600 mm. size of board.

SECTION(B) - SANITARY AND DRAINAGE WORKS.(B)-(II) SOIL PIPE AND FITTINGS.(a) Original Works.(16.)Supplying, fitting and fixing with cement jointing (3:1) salt glazed stoneware pipe including excavation of earth upto 1.50 metre depth in all sorts of soil both mixed or unmixed and refilling (but excluding concreting at bottom and sides).(iii) 150 mm

CHAPTER - II LAYING & JOINTING PIPES, SPECIALS ETC.2.1 C.I. / D.I. Pipe & Specials 2.1 C.I. / D.I. Pipe & Specials 2.1.5 Rubber gasket joints to C.l./D.l. pipes and specials all complete to makesthe joint water tight as required hydraulic pressure as per specification and direction of the Engineer-in-Charge.[Cost of Rubber. gasket of approved make induding supply to any pointwithin the Kolkata Municipal Area shall be paid separately.}Diameter in mm 100mm dia.

CHAPTER - V HYDRAULIC TESTING Hydraulically testing of C.l./D.I/A.C pipe lines in sections, under a head of water not less than 60m{6Kg/Cm....pressure) or above as per specific requirements by filling the main with supply of water including supply of all specials and equipments like pump sets, gauges, end caps blank flange etc.all complete as per specification and direction of the Engineer-in-Charge.[After successful completion of test. removal of ancillary specials.equipments. plugging arrangements and disposal of water sholl be made at no extra cost] Diameter in mm 100

CHAPTER - VI DISINFECTION OF PIPELINE Disinfection of water main by filling with water containing bleaching powder of sufficient quantity capable of maintaining a residual chlorine concentration of 10mg/l within the main after a detention period of two hours and flushing the same with fresh water all complete as per specification and direction of the Engineer-in- Charge.[After successful completion of the process, disposal of water and bacteriological testing of sample of flushed out water from the mains should be made at no extra cost] Diameter in mm 100

PLUMBING WORKS (A)-(II) G.I. PIPE WORKS AND FITTINGS (b) Repair Works 18. Drilling and tapping C.I. main. (i) Upto 15 mm

PLUMBING WORKS (A)-(I) FERRULE AND FERRULE CONNECTION (b) REPAIR WORKS 1. Renewing brass ferrule for connecting mains. (iv) 10 mm dia.

PLUMBING WORKS (A)-(I) FERRULE AND FERRULE CONNECTION (b) REPAIR WORKS 1. Renewing brass ferrule for connecting mains. (iii) 15 mm dia.

PLUMBING WORKS (A)-(II) G.I. PIPE WORKS AND FITTINGS 2. Supplying, fitting and fixing in position G.I. pipes of TATA make for underground works with all necessary accessories,specials viz.socket, bend, tee, union, cross, elbow, nipple, short piece etc.including cost of all materials,jointing materials ,cutting pipes,making threads,cutting trenches upto 1.5 metre below surface in all sorts of soil and refilling the same as directed with two coats of painting on G.I. pipes and specials with bituminous paint complete in all respect. (Payment will be made on the centre line measurement of the total pipe line including all specials No separate payment will be made for accessories, specials.Payment for painting will be made seperately) (i) 15 mm dia. medium quality

PLUMBING WORKS (A)-(II) G.I. PIPE WORKS AND FITTINGS 2. Supplying, fitting and fixing in position G.I. pipes of TATA make for underground works with all necessary accessories,specials viz.socket, bend, tee, union, cross, elbow, nipple, short piece etc.including cost of all materials,jointing materials ,cutting pipes,making threads,cutting trenches upto 1.5 metre below surface in all sorts of soil and refilling the same as directed with two coats of painting on G.I. pipes and specials with bituminous paint complete in all respect. (Payment will be made on the centre line measurement of the total pipe line including all specials No separate payment will be made for accessories, specials.Payment for painting will be made seperately) (ii) 20 mm dia. medium quality

CHAPTER - VIII SUPPLYING OF MATERIALS 8.24 Carriage of Different materials including loading into truck at the lifting point, unloading at destination and stacking properly in godown or yard etc. as directed (Including carriage by head load upto 30 metres at each of the two points. The rate covers all the above operations, actual transport all complete ) steel upto 5km

CHAPTER - VIII SUPPLYING OF MATERIALS 8.25 Carriage of CI / Dl / ERWMS / AC pipes including loading into truck at the lifting point, unloading at destination and stacking properly in godown or yard etc. as directed (Including carriage by head load upto 30 metres at each of the two points. The rate covers all the above operations, actual transport all complete.diameter in mm 100 upto 5km

CHAPTER - II LAYING & JOINTING PIPES, SPECIALS ETC.2.1 C.I. / D.I. Pipe & Specials 2.1 C.I. / D.I. Pipe & Specials 2.1.2 Lowering any type of Ductile Iron (DI) pipes & specials and laying along trench at any depth as per speclfication and direction of the Engineer-incharge, ( laying over ground. the rates shall be, reduced by 10% and the rates so reduced shall be inclusive of cost of all sorts of holding arrangements]Diameter in mm 100mm dia.

CHAPTER - VII MISCELLANEOUS ITEMS Wet connection with M.S. saddle on running mains by drilling with electric drill. plugging with wooden plug. using nuts and bolts. rubber insertion.dewatering trenches all complete excluding cost of M.S. saddle & Earthwork. 12in /4in dia

D.I. PIPE(CLASS K7)DIA 100 MM(TYTON JOINTS) CONFORMING TO 8329/2000 CLASS K-7 WITH THE METALIC ZINC COATING AS PER CLAUSE A-8

CHAPTER - I [ SUPPLEMENTARY ] EXCAVATION, SHORING, BAMBOO PILING, FENCING & SIGN BOARD, LIGHTING & SIGNALING AND SITE CLEANING ETC. 1.13 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.

CHAPTER - VII MISCELLANEOUS ITEMS Supplying, fitting and fixing of C.I. Mechanical Compression flexible Collar Couplings suitable for C.I. Spun Pipes (as per IS: 1536) and D. I. Pipes (as per IS: 8329) 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. Diameter in mm 300

CHAPTER - VII MISCELLANEOUS ITEMS 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. Diameter in mm 100

CHAPTER - VII MISCELLANEOUS ITEMS 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. Diameter in mm 300

D.I. PIPE(CLASS K7)DIA 100 MM(TYTON JOINTS) CONFORMING TO 8329/2000 CLASS K-7 WITH THE METALIC ZINC COATING AS PER CLAUSE A-8

Estimated amount

Add: 9%SGST

Add: 9%CGST