Annamalainagar TP, Cuddalore Dt - KNMT - 2025-2026

Earthwork excavation and depositing on bank with an initial lead of 10m and lift of 2m in sand silt or other loose soil , wet sand or silt, not under water , light black cotton soil , sandy loam and ordinary soil including excavated earth (SS 20B) including shoring, and strutting baling out of water wherever necessary and all other incidental charges etc. complete as directed by TWAD Board Officers.

For HDPE main

For HSC

Refilling the trenches with excavated soil after the pipes were laid, jointed and tested etc., complete complying with standard specification including watering and consolidation and as directed by the TWAD Board Officers.

HSC Connection in HDPE Mains for Water Supply Scheme : Electrofusion tapping saddle PE 80 blue, PN 12.5 with female threaded metal insert of SS 304 as per standards BS EN 12201 tested as per BS 6920 for drinking water in WRCNSF ltd, UK. (Non Wrap with top loading type). Sizes:63mm to 315mm dia distribution HDPE pipes. 20mm

Common items for HSC Connection Supply. delivery of Brass Ferrule as per IS 319 grade of sizes 15mm,20mm and 25mm size and threaded as per IS :554BSPT, ISO:7-1 to suit the corresponding boresizes of 15mm, 20mm and 25mm dia size(1/2", 3/4" and 1") in the saddle Connection, asper IS:1534 BSPT, ISO:7-1 20mm

Supply, delivey of Poly Propylene compression Male Threaded Adaptor with metal insert of SS 304 as per standards ISO 14236 and Tested as per BS 6920 in WRC-NSF LTD, UK suitable for 20mm, 25mm and 32mm OD MDPE pipes 20mm

Supply, delivery of Poly propylene 90 Degree Compression elbow with compression joint at both ends as per standards ISO 14236 and Tested as per BS 6920 in WRCNSF LTD, UK suitable for 20mm, 25mm and 32mm OD MDPE pipes 20mm

Female Threaded Elbow with metal insert of SS 304 as per standards ISO 14236 and Tested as per BS 6920 in WRC-NSF LTD, UK for connecting 15mm, 20mm and 25mm outlet points of Brass ferrule of sizes 15mm, 20mm and 25mm respectively. 20mm

Supply, delivery of MDPE PE 80 PN 16 Blue pipe as per standards ISO 4427 and Tested as per BS 6920 in WRCNSF LTD, UK 20mm

Supply, delivery of U PVC ball valve with one side compression end and other side female end as per ISO 4422-4 and Tested as per BS 6920 in WRC-NSF LTD, UK,size : 20mm ODx1/2"ID, 25mm ODX1/2"ID and 32mm OD X 3/4" ID 20 mm

Supply and delivery of protection box of size 20cm x 30cm for fixing of Water Meter. The box should be rectangular base in construction and material of construction should be weather resistant polyethylene (PE) blue /black Reinforcement rips should be provided at the walls of the box. Box should be at two components comprising body and lid. Lid should be press fitted to the body. No hinges should be used for opened /closed. Operation meter box should be provided with built in lock. The body as inlet and outlet windows to pass the pipe through suitable for use with pipes of sizes up to 1" .Base of the box should be designed in such a way .That the box can be installed to the floor/wall using anchor Bolts / screws without grouting the entire base of the meter Box .Provision for fixing Name plate showing the name of the Department etc., complete and as directed by the TWAD Board Officers.

Supply, delivery of Mechanical water meter and as directed by the TWAD Board Officers. 15 mm dia

Lowering, laying and jointing of MDPE pipes and specials to the trench with coupler and cement paste etc., complete for the pipes size upto 40 mm dia OD HDPE pipes 20 mm dia

Welding/Electro fusion welding joints using fusion equipment as per ISO 2130-2011 and as per IS 7634(Part-2):2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as directed by TWAD Board officers. 20 mm dia

Supply, delivery and fixing of GI pipes for encasing in open drain including handling charges in open drain including handling charges etc., and as directed by TWAD board officeer 20 mm dia

Labour charges for drilling, cutting, and fixing ferrules in Distribution pipes 20 mm dia

Labour for cutting open road for laying water mains or sewer B.T. Roads (or) Maccadam road.(Twad SOR Vol-II 2025-26,P.No-215,WD-W0739) B.T. Roads (or) Maccadam road

Labour for cutting open road for laying water mains or sewer B.T. Roads (or) Maccadam road.(Twad SOR Vol-II 2025-26,P.No-215,WD-W0739) B.T. Roads (or) Maccadam road 110mm HDPE Pipes (Twad SOR Vol-II 2025-26,P.No-212) WD-W0705

Refilling the trenches with excavated soil after the pipes were laid, jointed and tested etc., complete complying with standard specification including watering and consolidation and as directed by the TWAD Board Officers.(Twad SOR Vol-II 2025-26,P.No-212)

Supply and delivery of the following sizes of 110mm dia HDPE PIPES PE 100 AS PER IS 4984/2016 other specifications including transportation to stock yard any where in Tamilnadu etc., complete and as directed by TWAD Board officers (Twad SOR Vol-II 2025-26,P.No-16)WD-M0188

Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers 90mm to 110mm dia (OD) HDPE pipe (Twad SOR Vol-II 2025-26,P.No-192)WD-W0430

Supply and delivery of HDPE specials of conforming IS specifications at site of work including, loading transportation, unloading, insurance etc., complete a directed by TWAD Board Officers (Twad SOR Vol-II 2025-26,P.No-20)WD-M0286

110mm HDPE Equal Tee

110mm HDPE 90 degree Bend-6KSC

Testing of pipes(Hdpe pipes) for water supply with hydraulic testing equipment by filling with water (including cost of water) and testing to recommended pressure in convenient stretches and attending the bursts if any occured during the test, excluding the cost of pipes but including other incidential and operational charges etc., complete for the following diametres of pipes.Up to 100mm (Twad SOR Vol-II 2025-26,P.No-194)WD-W0460

Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part 2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers.(Twad SOR Vol-II 2025-26,P.No-204)WD-W0619

Cutting GI Pipes true to axis and fling smoothly and finishing the ends etc., complete and as directed by TWAD Board ófficers.(PWD SOR VOL-1 2025-26,P.No-36)W-0139

Threading of GI Pipes complete and as directed by TWAD Board officers (PWD SOR VOL-1 2025-26,P.No-36) W-0140

Name Board

Earth work excavation in all classes of soils such as hard stiff clay, stiff black cotton, hard red earth, shales, murram, ordinary earth, earth mix with 50% fair sized boulders etc., with initial lead and lifts including laying, spreading, levelling, sectioning breaking clods etc., in all incidental charges etc., complete as per standard specification.

Plain Cement concrete of mix 1:4:8 (One cement four sand and eight aggregates) using 40mm gauge hard broken including cost conveyance of all materials to site including labour charges, transporting and placing in position including shoring, strutting forming protective bunds, cofferdams bailing out of water labour for mixing compacting, finishing and curing, working at depths, tools and plants and incidental charges such as sheeting, shoring and bracing and their subsequent removal etc., complete as per standard specification. TNDSS NO.28 V,VI S25

Plain Cement concrete 1:2:4 Using 20mm ISS gauge hard broken granite stone jelly for Top layer concrete including watering wherever necessary and in layers not more than 15 cm in thick etc., including compacting and all labour charges for curing and all other incidental charges etc., complete complying with standard specification.