KMC/WS/JOKA/65/2025-26

BUILDING WORKS (A) EARTH WORK,ANTITERMITE TREATMENT 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 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.

BUILDING WORKS (A) EARTH WORK,ANTITERMITE TREATMENT 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.

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

BUILDING WORKS (B) DISMANTLING, CUTTING CHASE, HOLES ETC 2. Dismantling all types of plain cement concrete works, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m In ground floor including roof. (a) upto 150 mm. thick

CHAPTER - I [ SUPPLEMENTARY ] EXCAVATION, SHORING, BAMBOO PILING, FENCING & SIGN BOARD, LIGHTING & SIGNALING AND SITE CLEANING ETC. 1.10 Hire and labour charges for coir rope fencing 25 mm dia rope single on 120 mm dia bamboo posts 1.40 m above G.L and 600 mm below G.L, 1.50 m apart including digging holes complete.

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.

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 - 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 - 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 - 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 - II LAYING & JOINTING PIPES, SPECIALS ETC.2.1 C.I. / D.I. Pipe & Specials 2.1 C.I. / D.I. Pipe & Specials 2.1.6 Flange joint to C.l./D.l/MS. pipes and specials including supply of rubber gasket. nuts. bolts. washers etc. of best quality to make the joint watertight at required hydraulic pressure all complete as per specification & direction of the Engineer-in-Charge. Diameter in mm 100mm dia.

CHAPTER - II LAYING & JOINTING PIPES, SPECIALS ETC.2.1 C.I. / D.I. Pipe & Specials 2.1 C.I. / D.I. Pipe & Specials 2.1.9 Cutting of Single bit/Double bits of socket of rubber gasket jointed C.I/D.Isocket & spigot pipes without damaging any portion of the pipe end making the pipe free from all broken pieces as per direction of the Engineerin-Charge.Diameter in mm 100mm dia.

CHAPTER - III TAKING OUT PIPES AND SPECIALS Cast Iron / Ductile Iron Pipes and Specials M.S. Pipes and Specials Shifting house connection or stand post connection from existing main to new main after excavation through any kind of soil and road materials up to required depth. dismantling existing ferrule with all fittings. plugging hole of old main with G.I. plug. drilling and tapping the new main. refixing the ferrule on the new main with serviceable old G.I pipes and other specials (New G.l. pipes and other specials. if required to be installed shall be paid extra) and back filling the trench with excavated materials all complete as per specification and direction of the Engineer- in-Charge.

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

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 - 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 100

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

PLUMBING WORKS (A)-(II) G.I. PIPE WORKS AND FITTINGS (b) Repair Works 19. Plugging up C.I. main with necessary materials & Labour Complete

PLUMBING WORKS (A)-(II) G.I. PIPE WORKS AND FITTINGS (b) Repair Works 18. Drilling and tapping C.I. main. (ii) Above 15 mm upto 25 mm

(C) III: Labour Rate for Sanitary and Plumbing 5.Plumbing Helper NOTE:The above rates are exclusive of 10 % profit and 1% Labour welfare cess, which would be admissible to the Contractor, but contractual percentage will not be applicable on the above rates. Page 113 of 124

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.

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)-(I) FERRULE AND FERRULE CONNECTION (a) Original Works 1. Supplying,fitting and fixing brass ferrule including connection with G.I. pipes of TATA make of following dia. and upto 450 mm long with screw,jamnut,sockets etc.,complete in all respect, including cutting trenches in all sorts of soil and filling up the trenches as per direction of the Engineer - in - Charge. (iv) 10 mm dia.

D.I SPUN PIPE 100MM (4") (TYTONJOINT) CONFIRMING TO IS:8329/2000 CLASS K-7 SUITABLEFOR PUSH ON JOINT (RUBBERGASKET JOINTING) WITH INSIDECEMENT MORTAR LINING AND OUTSIDEBITUMINOUS/SYNTHETIC RESIN COATING COMPATIBLE WITH THE METALLIC ZINC COATING AS PER CLAUSE A-8 (REF: PO NUMBER 2021400, DATED 03/03/2025 KMC C. S&P)

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 150

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